Showing posts with label Health. Show all posts
Showing posts with label Health. Show all posts

WHO: Slight cancer risk after Japan nuke accident

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LONDON (AP) — Two years after Japan's nuclear plant disaster, an international team of experts said Thursday that residents of areas hit by the highest doses of radiation face an increased cancer risk so small it probably won't be detectable.


In fact, experts calculated that increase at about 1 extra percentage point added to a Japanese infant's lifetime cancer risk.


"The additional risk is quite small and will probably be hidden by the noise of other (cancer) risks like people's lifestyle choices and statistical fluctuations," said Richard Wakeford of the University of Manchester, one of the authors of the report. "It's more important not to start smoking than having been in Fukushima."


The report was issued by the World Health Organization, which asked scientists to study the health effects of the disaster in Fukushima, a rural farming region.


On March 11, 2011, an earthquake and tsunami knocked out the Fukushima plant's power and cooling systems, causing meltdowns in three reactors and spewing radiation into the surrounding air, soil and water. The most exposed populations were directly under the plumes of radiation in the most affected communities in Fukushima, which is about 150 miles (240 kilometers) north of Tokyo.


In the report, the highest increases in risk are for people exposed as babies to radiation in the most heavily affected areas. Normally in Japan, the lifetime risk of developing cancer of an organ is about 41 percent for men and 29 percent for women. The new report said that for infants in the most heavily exposed areas, the radiation from Fukushima would add about 1 percentage point to those numbers.


Experts had been particularly worried about a spike in thyroid cancer, since radioactive iodine released in nuclear accidents is absorbed by the thyroid, especially in children. After the Chernobyl disaster, about 6,000 children exposed to radiation later developed thyroid cancer because many drank contaminated milk after the accident.


In Japan, dairy radiation levels were closely monitored, but children are not big milk drinkers there.


The WHO report estimated that women exposed as infants to the most radiation after the Fukushima accident would have a 70 percent higher chance of getting thyroid cancer in their lifetimes. But thyroid cancer is extremely rare and one of the most treatable cancers when caught early. A woman's normal lifetime risk of developing it is about 0.75 percent. That number would rise by 0.5 under the calculated increase for women who got the highest radiation doses as infants.


Wakeford said the increase may be so small it will probably not be observable.


For people beyond the most directly affected areas of Fukushima, Wakeford said the projected cancer risk from the radiation dropped dramatically. "The risks to everyone else were just infinitesimal."


David Brenner of Columbia University in New York, an expert on radiation-induced cancers, said that although the risk to individuals is tiny outside the most contaminated areas, some cancers might still result, at least in theory. But they'd be too rare to be detectable in overall cancer rates, he said.


Brenner said the numerical risk estimates in the WHO report were not surprising. He also said they should be considered imprecise because of the difficulty in determining risk from low doses of radiation. He was not connected with the WHO report.


Some experts said it was surprising that any increase in cancer was even predicted.


"On the basis of the radiation doses people have received, there is no reason to think there would be an increase in cancer in the next 50 years," said Wade Allison, an emeritus professor of physics at Oxford University, who also had no role in developing the new report. "The very small increase in cancers means that it's even less than the risk of crossing the road," he said.


WHO acknowledged in its report that it relied on some assumptions that may have resulted in an overestimate of the radiation dose in the general population.


Gerry Thomas, a professor of molecular pathology at Imperial College London, accused the United Nations health agency of hyping the cancer risk.


"It's understandable that WHO wants to err on the side of caution, but telling the Japanese about a barely significant personal risk may not be helpful," she said.


Thomas said the WHO report used inflated estimates of radiation doses and didn't properly take into account Japan's quick evacuation of people from Fukushima.


"This will fuel fears in Japan that could be more dangerous than the physical effects of radiation," she said, noting that people living under stress have higher rates of heart problems, suicide and mental illness.


In Japan, Norio Kanno, the chief of Iitate village, in one of the regions hardest hit by the disaster, harshly criticized the WHO report on Japanese public television channel NHK, describing it as "totally hypothetical."


Many people who remain in Fukushima still fear long-term health risks from the radiation, and some refuse to let their children play outside or eat locally grown food.


Some restrictions have been lifted on a 12-mile (20-kilometer) zone around the nuclear plant. But large sections of land in the area remain off-limits. Many residents aren't expected to be able to return to their homes for years.


Kanno accused the report's authors of exaggerating the cancer risk and stoking fear among residents.


"I'm enraged," he said.


___


Mari Yamaguchi in Tokyo and AP Science Writer Malcolm Ritter in New York contributed to this report.


__


Online:


WHO report: http://bit.ly/YDCXcb


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WHO: Slight cancer risk after Japan nuke accident

Label:

LONDON (AP) — Two years after Japan's nuclear plant disaster, an international team of experts said Thursday that residents of areas hit by the highest doses of radiation face an increased cancer risk so small it probably won't be detectable.


In fact, experts calculated that increase at about 1 extra percentage point added to a Japanese infant's lifetime cancer risk.


"The additional risk is quite small and will probably be hidden by the noise of other (cancer) risks like people's lifestyle choices and statistical fluctuations," said Richard Wakeford of the University of Manchester, one of the authors of the report. "It's more important not to start smoking than having been in Fukushima."


The report was issued by the World Health Organization, which asked scientists to study the health effects of the disaster in Fukushima, a rural farming region.


On March 11, 2011, an earthquake and tsunami knocked out the Fukushima plant's power and cooling systems, causing meltdowns in three reactors and spewing radiation into the surrounding air, soil and water. The most exposed populations were directly under the plumes of radiation in the most affected communities in Fukushima, which is about 150 miles (240 kilometers) north of Tokyo.


In the report, the highest increases in risk are for people exposed as babies to radiation in the most heavily affected areas. Normally in Japan, the lifetime risk of developing cancer of an organ is about 41 percent for men and 29 percent for women. The new report said that for infants in the most heavily exposed areas, the radiation from Fukushima would add about 1 percentage point to those numbers.


Experts had been particularly worried about a spike in thyroid cancer, since radioactive iodine released in nuclear accidents is absorbed by the thyroid, especially in children. After the Chernobyl disaster, about 6,000 children exposed to radiation later developed thyroid cancer because many drank contaminated milk after the accident.


In Japan, dairy radiation levels were closely monitored, but children are not big milk drinkers there.


The WHO report estimated that women exposed as infants to the most radiation after the Fukushima accident would have a 70 percent higher chance of getting thyroid cancer in their lifetimes. But thyroid cancer is extremely rare and one of the most treatable cancers when caught early. A woman's normal lifetime risk of developing it is about 0.75 percent. That number would rise by 0.5 under the calculated increase for women who got the highest radiation doses as infants.


Wakeford said the increase may be so small it will probably not be observable.


For people beyond the most directly affected areas of Fukushima, Wakeford said the projected cancer risk from the radiation dropped dramatically. "The risks to everyone else were just infinitesimal."


David Brenner of Columbia University in New York, an expert on radiation-induced cancers, said that although the risk to individuals is tiny outside the most contaminated areas, some cancers might still result, at least in theory. But they'd be too rare to be detectable in overall cancer rates, he said.


Brenner said the numerical risk estimates in the WHO report were not surprising. He also said they should be considered imprecise because of the difficulty in determining risk from low doses of radiation. He was not connected with the WHO report.


Some experts said it was surprising that any increase in cancer was even predicted.


"On the basis of the radiation doses people have received, there is no reason to think there would be an increase in cancer in the next 50 years," said Wade Allison, an emeritus professor of physics at Oxford University, who also had no role in developing the new report. "The very small increase in cancers means that it's even less than the risk of crossing the road," he said.


WHO acknowledged in its report that it relied on some assumptions that may have resulted in an overestimate of the radiation dose in the general population.


Gerry Thomas, a professor of molecular pathology at Imperial College London, accused the United Nations health agency of hyping the cancer risk.


"It's understandable that WHO wants to err on the side of caution, but telling the Japanese about a barely significant personal risk may not be helpful," she said.


Thomas said the WHO report used inflated estimates of radiation doses and didn't properly take into account Japan's quick evacuation of people from Fukushima.


"This will fuel fears in Japan that could be more dangerous than the physical effects of radiation," she said, noting that people living under stress have higher rates of heart problems, suicide and mental illness.


In Japan, Norio Kanno, the chief of Iitate village, in one of the regions hardest hit by the disaster, harshly criticized the WHO report on Japanese public television channel NHK, describing it as "totally hypothetical."


Many people who remain in Fukushima still fear long-term health risks from the radiation, and some refuse to let their children play outside or eat locally grown food.


Some restrictions have been lifted on a 12-mile (20-kilometer) zone around the nuclear plant. But large sections of land in the area remain off-limits. Many residents aren't expected to be able to return to their homes for years.


Kanno accused the report's authors of exaggerating the cancer risk and stoking fear among residents.


"I'm enraged," he said.


___


Mari Yamaguchi in Tokyo and AP Science Writer Malcolm Ritter in New York contributed to this report.


__


Online:


WHO report: http://bit.ly/YDCXcb


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Vt. lye victim gets new face at Boston hospital

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BOSTON (AP) — The 2007 chemical attack left the Vermont nurse unrecognizable to anyone who knew her.


But now Carmen Blandin Tarleton's face has changed again following a facial transplant this month.


Doctors at Brigham & Women's Hospital in Boston said Wednesday that the 44-year-old's surgery included transplanting a female donor's facial skin to Tarleton's neck, nose and lips, along with facial muscles, arteries and nerves.


"I know how truly blessed I am, and will have such a nice reflection in the mirror to remind myself what selfless really is," Tarleton wrote on her blog Wednesday.


The Thetford, Vt., woman suffered burns on more than 80 percent of her body and was blinded after her estranged husband attacked her with a baseball bat and doused her with lye in 2007.


Tarleton, who once worked as a transplant nurse, has undergone more than 50 surgeries since the attack, including work to restore some of her vision.


The latest surgery took 15 hours and included a team of more than 30 medical professionals. The lead surgeon, Bohdan Pomahac, called her injuries among the worst he's seen in his career.


"Carmen is a fighter," the doctor said Wednesday. "And fight she did."


Pomahac's team has performed five facial transplants at the hospital. He said the patient is recovering very well and is in great spirits as she works to get stronger.


He said she was very pleased when she saw her face for the first time, and that her appearance will not match that of the late donor's face.


"I think she looks amazing, but I'm biased," he said with a smile.


The donor's family wants to remain anonymous, but released a statement through a regional donor bank saying that her spirit would live on through Tarleton and three other organ recipients.


The estranged husband, Herbert Rodgers, pleaded guilty in 2009 in exchange for a prison sentence of at least 30 years.



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C. Everett Koop, 'rock star' surgeon general, dies

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NEW YORK (AP) — Dr. C. Everett Koop has long been regarded as the nation's doctor— even though it has been nearly a quarter-century since he was surgeon general.


Koop, who died Monday at his home in Hanover, N.H., at age 96, was by far the best known and most influential person to carry that title. Koop, a 6-foot-1 evangelical Presbyterian with a biblical prophet's beard, donned a public health uniform in the early 1980s and became an enduring, science-based national spokesman on health issues.


He served for eight years during the Reagan administration and was a breed apart from his political bosses. He thundered about the evils of tobacco companies during a multiyear campaign to drive down smoking rates, and he became the government's spokesman on AIDS when it was still considered a "gay disease" by much of the public.


"He really changed the national conversation, and he showed real courage in pursuing the duties of his job," said Chris Collins, a vice president of amfAR, the Foundation for AIDS Research.


Even before that, he had been a leading figure in medicine. He was one of the first U.S. doctors to specialize in pediatric surgery at a time when children with complicated conditions were often simply written off as untreatable. In the 1950s, he drew national headlines for innovative surgeries such as separating conjoined twins.


His medical heroics are well noted, but he may be better remembered for transforming from a pariah in the eyes of the public health community into a remarkable servant who elevated the influence of the surgeon general — if only temporarily.


"He set the bar high for all who followed in his footsteps," said Dr. Richard Carmona, who served as surgeon general a decade later under President George W. Bush.


Koop's religious beliefs grew after the 1968 death of his son David in a mountain-climbing accident, and he became an outspoken opponent of abortion. His activism is what brought him to the attention of the administration of President Ronald Reagan, who decided to nominate him for surgeon general in 1981. Though once a position with real power, surgeon generals had been stripped of most of their responsibilities in the 1960s.


By the time Koop got the job, the position was kind of a glorified health educator.


But Koop ran with it. One of his early steps involved the admiral's uniform that is bestowed to the surgeon general but that Koop's predecessors had worn only on ceremonial occasions. In his first year in the post, Koop stopped wearing his trademark bowties and suit jackets and instead began wearing the uniform, seeing it as a way to raise the visual prestige of the office.


In those military suits, he surprised the officials who had appointed him by setting aside his religious beliefs and feelings about abortion and instead waging a series of science-based public health crusades.


He was arguably most effective on smoking. He issued a series of reports that detailed the dangers of tobacco smoke, and in speeches began calling for a smoke-free society by the year 2000. He didn't get his wish, but smoking rates did drop from 38 percent to 27 percent while he was in office — a huge decline.


Koop led other groundbreaking initiatives, but perhaps none is better remembered than his work on AIDS.


The disease was first identified in 1981, before Koop was officially in office, and it changed U.S. society. It destroyed the body's immune system and led to ghastly death, but initially was identified in gay men, and many people thought of it as something most heterosexuals didn't have to worry about.


U.S. scientists worked hard to identify the virus and work on ways to fight it, but the government's health education and policy efforts moved far more slowly. Reagan for years was silent on the issue. Following mounting criticism, Reagan in 1986 asked Koop to prepare a report on AIDS for the American public.


His report, released later that year, stressed that AIDS was a threat to all Americans and called for wider use of condoms and more comprehensive sex education, as early as the third grade. He went on to speak frankly about AIDS in an HBO special and engineered the mailing of an educational pamphlet on AIDS to more than 100 million U.S. households in 1988.


Koop personally opposed homosexuality and believed sex should be saved for marriage. But he insisted that Americans, especially young people, must not die because they were deprived of explicit information about how HIV was transmitted.


Koop's speeches and empathetic approach made him a hero to a wide swath of America, including public health workers, gay activists and journalists. Some called him a "scientific Bruce Springsteen." AIDS activists chanted "Koop, Koop" at his appearances and booed other officials.


"I was walking down the street with him one time" about five years ago, recalled Dr. George Wohlreich, director of the College of Physicians of Philadelphia, a medical society with which Koop had longstanding ties. "People were yelling out, 'There goes Dr. Koop!' You'd have thought he was a rock star."


Koop angered conservatives by refusing to issue a report requested by the Reagan White House, saying he could not find enough scientific evidence to determine whether abortion has harmful psychological effects on women.


He got static from some staff at the White House for his actions, but Reagan himself never tried to silence Koop. At a congressional hearing in 2007, Koop spoke about political pressure on the surgeon general post. He said Reagan was pressed to fire him every day.


After his death was reported Monday, the tributes poured forth, including a statement from New York Mayor Michael Bloomberg, who has made smoking restrictions a hallmark of his tenure.


"The nation has lost a visionary public health leader today with the passing of former Surgeon General C. Everett Koop, who was born and raised in Brooklyn," Bloomberg said. "Outspoken on the dangers of smoking, his leadership led to stronger warning labels on cigarettes and increased awareness about second-hand smoke, creating an environment that helped millions of Americans to stop smoking — and setting the stage for the dramatic changes in smoking laws that have occurred over the past decade."


Dr. Anthony Fauci of the National Institutes of Health taught Koop what was known about AIDS during quiet after-hours talks in the early 1980s and became a close friend.


"A less strong person would have bent under the pressure," Fauci said. "He was driven by what's the right thing to do."


Carmona, a surgeon general years later, said Koop was a mentor who preached the importance of staying true to the science in speeches and reports — even when it made certain politicians uncomfortable.


"We remember him for the example he set for all of us," Carmona said.


Koop's nomination originally was met with staunch opposition. Women's groups and liberal politicians complained Reagan had selected him only because of his conservative views, especially his staunch opposition to abortion.


Foes noted that Koop traveled the country in 1979 and 1980 giving speeches that predicted a progression "from liberalized abortion to infanticide to passive euthanasia to active euthanasia, indeed to the very beginnings of the political climate that led to Auschwitz, Dachau and Belsen."


But Koop, a devout Presbyterian, was confirmed as surgeon general after he told a Senate panel he would not use the post to promote his religious ideology. He kept his word and eventually won wide respect with his blend of old-fashioned values, pragmatism and empathy.


Koop was modest about his accomplishments, saying before leaving office in 1989, "My only influence was through moral suasion."


The office declined after that. Few of his successors had his speaking ability or stage presence. Fewer still were able to secure the support of key political bosses and overcome the meddling of everyone else. The office gradually lost prestige and visibility, and now has come to a point where most people can't name the current surgeon general. (It's Dr. Regina Benjamin.)


Even after leaving office, Koop continued to promote public health causes, from preventing childhood accidents to better training for doctors.


"I will use the written word, the spoken word and whatever I can in the electronic media to deliver health messages to this country as long as people will listen," he promised.


In 1996, he rapped Republican presidential hopeful Bob Dole for suggesting that tobacco was not invariably addictive, saying Dole's comments "either exposed his abysmal lack of knowledge of nicotine addiction or his blind support of the tobacco industry."


He maintained his personal opposition to abortion. After he left office, he told medical students it violated their Hippocratic oath. In 2009, he wrote to Senate Majority Leader Harry Reid, urging that health care legislation include a provision to ensure doctors and medical students would not be forced to perform abortions. The letter briefly set off a security scare because it was hand delivered.


Koop served as chairman of the National Safe Kids Campaign and as an adviser to President Bill Clinton's health care reform plan.


Worried that medicine had lost old-fashioned caring and personal relationships between doctors and patients, Koop opened an institute at Dartmouth College in New Hampshire to teach medical students basic values and ethics. He also was a part-owner of a short-lived venture, drkoop.com, to provide consumer health care information via the Internet.


Koop was the only son of a Manhattan banker and the nephew of a doctor. He said by age 5 he knew he wanted to be a surgeon and at age 13 he practiced his skills on neighborhood cats. He attended Dartmouth, where he received the nickname Chick, short for "chicken Koop." It stuck for life.


He received his medical degree at Cornell Medical College, choosing pediatric surgery because so few surgeons practiced it. In 1938, he married Elizabeth Flanagan, the daughter of a Connecticut doctor. They had four children. Koop's wife died in 2007, and he married Cora Hogue in 2010.


He was appointed surgeon-in-chief at Children's Hospital in Philadelphia and served as a professor at the University of Pennsylvania School of Medicine. He pioneered surgery on newborns and successfully separated three sets of conjoined twins. He won national acclaim by reconstructing the chest of a baby born with the heart outside the body.


Although raised as a Baptist, he was drawn to a Presbyterian church near the hospital, where he developed an abiding faith. He began praying at the bedside of his young patients — ignoring the snickers of some of his colleagues.


___


Contributing to this report were Associated Press writers Wilson Ring in Montpelier, Vt.; Jeff McMillan in Philadelphia; and AP Medical Writer Lauran Neergaard in Washington.


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Mediterranean-style diets found to cut heart risks

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Pour on the olive oil, preferably over fish and vegetables: One of the longest and most scientific tests of a Mediterranean diet suggests this style of eating can cut the chance of suffering heart-related problems, especially strokes, in older people at high risk of them.


The study lasted five years and involved about 7,500 people in Spain. Those who ate Mediterranean-style with lots of olive oil or nuts had a 30 percent lower risk of major cardiovascular problems compared to those who were told to follow a low-fat diet but who in reality, didn't cut fat very much. Mediterranean meant lots of fruit, fish, chicken, beans, tomato sauce, salads, and wine and little baked goods and pastries.


Mediterranean diets have long been touted as heart-healthy, but that's based on observational studies that can't prove the point. The new research is much stronger because people were assigned diets to follow for a long time and carefully monitored. Doctors even did lab tests to verify that the Mediterranean diet folks were consuming more olive oil or nuts as recommended.


Most of these people were taking medicines for high cholesterol and blood pressure, and researchers did not alter those proven treatments, said one study leader, Dr. Ramon Estruch of Hospital Clinic in Barcelona.


But as a first step to prevent heart problems, "we think diet is better than a drug" because it has few if any side effects, Estruch said. "Diet works."


Results were published online Monday by the New England Journal of Medicine and were discussed at a nutrition conference in Loma Linda, Calif.


People in the study were not given rigid menus or calorie goals because weight loss was not the aim. That could be why they found the "diets" easy to stick with — only about 7 percent dropped out within two years. There were twice as many dropouts in the low-fat group than among those eating Mediterranean-style.


Researchers also provided the nuts and olive oil, so it didn't cost participants anything to use these relatively pricey ingredients. The type of oil may have mattered — they used extra-virgin olive oil, which is minimally processed and richer than regular or light olive oil in the chemicals and nutrients that earlier studies have suggested are beneficial.


The study involved people ages 55 to 80, just over half of them women. All were free of heart disease at the start but were at high risk for it because of health problems — half had diabetes and most were overweight and had high cholesterol and blood pressure.


They were assigned to one of three groups: Two followed a Mediterranean diet supplemented with either extra-virgin olive oil (4 tablespoons a day) or with walnuts, hazelnuts and almonds (a fistful a day). The third group was urged to eat a low-fat diet heavy on bread, potatoes, pasta, rice, fruits, vegetables and fish and light on baked goods, nuts, oils and red meat.


Independent monitors stopped the study after nearly five years when they saw fewer problems in the two groups on Mediterranean diets.


Doctors tracked a composite of heart attacks, strokes or heart-related deaths. There were 96 of these in the Mediterranean-olive oil group, 83 in the Mediterranean-nut group and 109 in the low-fat group.


Looked at individually, stroke was the only problem where type of diet made a big difference. Diet had no effect on death rates overall.


The Mediterranean diet proved better even though its followers ate about 200 calories more per day than the low-fat group did. The study leaders now are analyzing how each of the diets affected weight gain or loss and body mass index.


The Spanish government's health research agency initiated and paid for the study, and foods were supplied by olive oil and nut producers in Spain and the California Walnut Commission. Many of the authors have extensive financial ties to food, wine and other industry groups but said the sponsors had no role in designing the study or analyzing and reporting its results.


Rachel Johnson, a University of Vermont professor who heads the American Heart Association's nutrition committee, said the study is very strong because of the lab tests to verify oil and nut consumption and because researchers tracked actual heart attacks, strokes and deaths — not just changes in risk factors such as high cholesterol.


"At the end of the day, what we care about is whether or not disease develops," she said. "It's an important study."


Rena Wing, a weight-loss expert at Brown University, noted that researchers provided the oil and nuts, and said "it's not clear if people could get the same results from self-designed Mediterranean diets" — or if Americans would stick to them more than Europeans who are used to such foods.


Dr. George Bray of the Pennington Biomedical Research Center in Baton Rouge, La., said he would give the study "a positive — even glowing — comment" and called it "the best and certainly one of the largest prospective dietary trials ever done."


"The data are sufficiently strong to convince me to move my dietary pattern closer to the Mediterranean Diet that they outline," he added.


Another independent expert also praised the study as evidence diet can lower heart risks.


"The risk reduction is close to that achieved with statins," cholesterol-lowering drugs, said Dr. Robert Eckel, a diet and heart disease expert at the University of Colorado.


"But this study was not carried out or intended to compare diet to statins or blood pressure medicines," he warned. "I don't think people should think now they can quit taking their medicines."


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Online:


Journal: http://www.nejm.org


___


Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP


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FDA approves new targeted breast cancer drug

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WASHINGTON (AP) — The Food and Drug Administration has approved a first-of-a-kind breast cancer medication that targets tumor cells while sparing healthy ones.


The drug Kadcyla from Roche combines the established drug Herceptin with a powerful chemotherapy drug and a third chemical linking the medicines together. The chemical keeps the cocktail intact until it binds to a cancer cell, delivering a potent dose of anti-tumor poison.


Cancer researchers say the drug is an important step forward because it delivers more medication while reducing the unpleasant side effects of chemotherapy.


"This antibody goes seeking out the tumor cells, gets internalized and then explodes them from within. So it's very kind and gentle on the patients — there's no hair loss, no nausea, no vomiting," said Dr. Melody Cobleigh of Rush University Medical Center. "It's a revolutionary way of treating cancer."


Cobleigh helped conduct the key studies of the drug at the Chicago facility.


The FDA approved the new treatment for about 20 percent of breast cancer patients with a form of the disease that is typically more aggressive and less responsive to hormone therapy. These patients have tumors that overproduce a protein known as HER-2. Breast cancer is the second most deadly form of cancer in U.S. women, and is expected to kill more than 39,000 Americans this year, according to the National Cancer Institute.


The approval will help Roche's Genentech unit build on the blockbuster success of Herceptin, which has long dominated the breast cancer marketplace. The drug had sales of roughly $6 billion last year.


Genentech said Friday that Kadcyla will cost $9,800 per month, compared to $4,500 per month for regular Herceptin. The company estimates a full course of Kadcyla, about nine months of medicine, will cost $94,000.


FDA scientists said they approved the drug based on company studies showing Kadcyla delayed the progression of breast cancer by several months. Researchers reported last year that patients treated with the drug lived 9.6 months before death or the spread of their disease, compared with a little more than six months for patients treated with two other standard drugs, Tykerb and Xeloda.


Overall, patients taking Kadcyla lived about 2.6 years, compared with 2 years for patients taking the other drugs.


FDA specifically approved the drug for patients with advanced breast cancer who have already been treated with Herceptin and taxane, a widely used chemotherapy drug. Doctors are not required to follow FDA prescribing guidelines, and cancer researchers say the drug could have great potential in patients with earlier forms of breast cancer


Kadcyla will carry a boxed warning, the most severe type, alerting doctors and patients that the drug can cause liver toxicity, heart problems and potentially death. The drug can also cause severe birth defects and should not be used by pregnant women.


Kadcyla was developed by South San Francisco-based Genentech using drug-binding technology licensed from Waltham, Mass.-based ImmunoGen. The company developed the chemical that keeps the drug cocktail together and is scheduled to receive a $10.5 million payment from Genentech on the FDA decision. The company will also receive additional royalties on the drug's sales.


Shares of ImmunoGen Inc. rose 2 cents to $14.32 in afternoon trading. The stock has ttraded in a 52-wek range of $10.85 to $18.10.


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FDA approves new targeted breast cancer drug

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WASHINGTON (AP) — The Food and Drug Administration has approved a first-of-a-kind breast cancer medication that targets tumor cells while sparing healthy ones.


The drug Kadcyla from Roche combines the established drug Herceptin with a powerful chemotherapy drug and a third chemical linking the medicines together. The chemical keeps the cocktail intact until it binds to a cancer cell, delivering a potent dose of anti-tumor poison.


Cancer researchers say the drug is an important step forward because it delivers more medication while reducing the unpleasant side effects of chemotherapy.


"This antibody goes seeking out the tumor cells, gets internalized and then explodes them from within. So it's very kind and gentle on the patients — there's no hair loss, no nausea, no vomiting," said Dr. Melody Cobleigh of Rush University Medical Center. "It's a revolutionary way of treating cancer."


Cobleigh helped conduct the key studies of the drug at the Chicago facility.


The FDA approved the new treatment for about 20 percent of breast cancer patients with a form of the disease that is typically more aggressive and less responsive to hormone therapy. These patients have tumors that overproduce a protein known as HER-2. Breast cancer is the second most deadly form of cancer in U.S. women, and is expected to kill more than 39,000 Americans this year, according to the National Cancer Institute.


The approval will help Roche's Genentech unit build on the blockbuster success of Herceptin, which has long dominated the breast cancer marketplace. The drug had sales of roughly $6 billion last year.


Genentech said Friday that Kadcyla will cost $9,800 per month, compared to $4,500 per month for regular Herceptin. The company estimates a full course of Kadcyla, about nine months of medicine, will cost $94,000.


FDA scientists said they approved the drug based on company studies showing Kadcyla delayed the progression of breast cancer by several months. Researchers reported last year that patients treated with the drug lived 9.6 months before death or the spread of their disease, compared with a little more than six months for patients treated with two other standard drugs, Tykerb and Xeloda.


Overall, patients taking Kadcyla lived about 2.6 years, compared with 2 years for patients taking the other drugs.


FDA specifically approved the drug for patients with advanced breast cancer who have already been treated with Herceptin and taxane, a widely used chemotherapy drug. Doctors are not required to follow FDA prescribing guidelines, and cancer researchers say the drug could have great potential in patients with earlier forms of breast cancer


Kadcyla will carry a boxed warning, the most severe type, alerting doctors and patients that the drug can cause liver toxicity, heart problems and potentially death. The drug can also cause severe birth defects and should not be used by pregnant women.


Kadcyla was developed by South San Francisco-based Genentech using drug-binding technology licensed from Waltham, Mass.-based ImmunoGen. The company developed the chemical that keeps the drug cocktail together and is scheduled to receive a $10.5 million payment from Genentech on the FDA decision. The company will also receive additional royalties on the drug's sales.


Shares of ImmunoGen Inc. rose 2 cents to $14.32 in afternoon trading. The stock has ttraded in a 52-wek range of $10.85 to $18.10.


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FDA approves new targeted breast cancer drug

Label:

WASHINGTON (AP) — The Food and Drug Administration has approved a first-of-a-kind breast cancer medication that targets tumor cells while sparing healthy ones.


The drug Kadcyla from Roche combines the established drug Herceptin with a powerful chemotherapy drug and a third chemical linking the medicines together. The chemical keeps the cocktail intact until it binds to a cancer cell, delivering a potent dose of anti-tumor poison.


Cancer researchers say the drug is an important step forward because it delivers more medication while reducing the unpleasant side effects of chemotherapy.


"This antibody goes seeking out the tumor cells, gets internalized and then explodes them from within. So it's very kind and gentle on the patients — there's no hair loss, no nausea, no vomiting," said Dr. Melody Cobleigh of Rush University Medical Center. "It's a revolutionary way of treating cancer."


Cobleigh helped conduct the key studies of the drug at the Chicago facility.


The FDA approved the new treatment for about 20 percent of breast cancer patients with a form of the disease that is typically more aggressive and less responsive to hormone therapy. These patients have tumors that overproduce a protein known as HER-2. Breast cancer is the second most deadly form of cancer in U.S. women, and is expected to kill more than 39,000 Americans this year, according to the National Cancer Institute.


The approval will help Roche's Genentech unit build on the blockbuster success of Herceptin, which has long dominated the breast cancer marketplace. The drug had sales of roughly $6 billion last year.


Genentech said Friday that Kadcyla will cost $9,800 per month, compared to $4,500 per month for regular Herceptin. The company estimates a full course of Kadcyla, about nine months of medicine, will cost $94,000.


FDA scientists said they approved the drug based on company studies showing Kadcyla delayed the progression of breast cancer by several months. Researchers reported last year that patients treated with the drug lived 9.6 months before death or the spread of their disease, compared with a little more than six months for patients treated with two other standard drugs, Tykerb and Xeloda.


Overall, patients taking Kadcyla lived about 2.6 years, compared with 2 years for patients taking the other drugs.


FDA specifically approved the drug for patients with advanced breast cancer who have already been treated with Herceptin and taxane, a widely used chemotherapy drug. Doctors are not required to follow FDA prescribing guidelines, and cancer researchers say the drug could have great potential in patients with earlier forms of breast cancer


Kadcyla will carry a boxed warning, the most severe type, alerting doctors and patients that the drug can cause liver toxicity, heart problems and potentially death. The drug can also cause severe birth defects and should not be used by pregnant women.


Kadcyla was developed by South San Francisco-based Genentech using drug-binding technology licensed from Waltham, Mass.-based ImmunoGen. The company developed the chemical that keeps the drug cocktail together and is scheduled to receive a $10.5 million payment from Genentech on the FDA decision. The company will also receive additional royalties on the drug's sales.


Shares of ImmunoGen Inc. rose 2 cents to $14.32 in afternoon trading. The stock has ttraded in a 52-wek range of $10.85 to $18.10.


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Flu shot did poor job against worst bug in seniors

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ATLANTA (AP) — This year's flu shot is doing a startlingly dismal job of protecting senior citizens from the harshest strain this season, proving only 9 percent effective, the government said Thursday.


Health officials don't know why this is so, but it helps explain why so many older people have been hospitalized with the flu this year.


Flu vaccine tends to protect younger people better than older ones and never works as well as other kinds of vaccines. But experts say the preliminary results for seniors are disappointing and highlight the urgent need for a better vaccine.


Overall, the vaccine's effectiveness is a moderate 56 percent, which means those who got a shot have a 56 percent lower chance of winding up at the doctor with the flu. That is nearly as good as other flu seasons, the Centers for Disease Control and Prevention said Thursday.


For those 65 and older, it offers far less protection. It is 27 percent effective against the three strains in the vaccine, the lowest in about a decade but not far below from what's expected. But the vaccine did a particularly poor job of protecting older people against the toughest flu bug, which is causing more than three-quarters of the illnesses this year. CDC officials say it's not clear why.


Vaccinations are recommended for anyone over 6 months, and health officials stress that some vaccine protection is better than none at all. While it's likely that older people who were vaccinated are still getting sick, many of them may be getting less severe symptoms.


"Year in and year out, the vaccine is the best protection we have," and vaccinations are still recommended for senior citizens, said CDC flu expert Dr. Joseph Bresee.


To be sure, the preliminary data for seniors is less than definitive. It is based on fewer than 300 people scattered among five states.


But it will no doubt surprise many people that the effectiveness is that low, said Michael Osterholm, a University of Minnesota infectious disease expert who has tried to draw attention to the need for a more effective flu vaccine.


Older people have weaker immune systems that don't respond as well to flu shots and are more vulnerable to the flu and its complications, including pneumonia.


Health officials at a meeting Thursday said they don't know why this year's vaccine did so poorly in that age group. One theory, as yet unproven, is that seniors' immune systems were accustomed to strains from the last two years and had more trouble switching gears to handle this year's different, harsh strain.


Among infectious diseases, flu is considered one of the nation's leading killers. On average, about 24,000 Americans die each flu season, according to the CDC.


This flu season started in early December, a month earlier than usual, and peaked by the end of year. Hospitalization rates for people 65 and older have been some of the highest in a decade, at 146 per 100,000 people.


Flu viruses tend to mutate more quickly than others, so a new vaccine is formulated each year to target the three strains expected to be the major threats. But that involves guesswork.


Because of these challenges, scientists tend to set a lower bar for flu vaccine. While childhood vaccines against diseases like measles are expected to be 90 or 95 percent effective, a flu vaccine that's 60 to 70 percent effective in the U.S. is considered pretty good. By that standard, this year's vaccine is OK.


For seniors, a flu vaccine is considered pretty good if it's in the 30 to 40 percent range, said Dr. Arnold Monto, a University of Michigan flu expert.


A high-dose version of the flu show was recently made available for those 65 and older but the new study was too small to show whether that made a difference this year.


The CDC estimates are based on about 2,700 people who got sick in December and January. The researchers traced back to see who had gotten flu shots and who hadn't. An earlier, smaller study put the vaccine's overall effectiveness at 62 percent but other factors that might influence that figure weren't taken into account.


The CDC's Bresee said there's a danger in providing preliminary results because it may result in people doubting — or skipping — flu shots. But the data was released to warn older people who got shots that they may still get sick and shouldn't ignore any serious flu-like symptoms, he said.


The new data highlights an evolution in how experts are evaluating flu vaccine effectiveness. For years, it was believed that if the viruses in the vaccine matched the ones spreading around the country, then the vaccine would be effective.


This year's shot was a good match to the bugs going around this winter, including the harsher H3N2 that tends to make people sicker. Yet the season proved to be a moderately severe one, with many illnesses occurring in people who'd been vaccinated.


A slate of new vaccines will be available next summer, including some that protect against as many of four strains of flu and some that can be made more quickly. But experts say it's not clear whether they will be any more effective.


____


Online:


CDC report: http://www.cdc.gov/mmwr


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Obama administration tackles colonoscopy confusion

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WASHINGTON (AP) — It's one part of the new health care law that seemed clear: free coverage for preventive care under most insurance plans.


Only it didn't turn out that way.


So on Wednesday, the Obama administration had to straighten out the confusion.


Have you gone for a colonoscopy thinking it was free, only to get a hefty bill because the doctor removed a polyp?


No more.


Taking out such precancerous growths as part of a routine colon cancer screening procedure will now be considered preventive care.


"Polyp removal is an integral part of a colonoscopy," the Department of Health and Human Services said in guidance posted on its website. That conclusion has the backing of several leading medical societies, the department noted.


Also addressed in the notice was genetic testing for breast cancer, coverage of over-the-counter products such as aspirin for heart care and nicotine patches for smoking, and birth control for women. Unlike formal regulations, the guidance does not have the force of law, but advocates for patients say insurers would be ill-advised to ignore it.


President Barack Obama's health care law required most private health plans to cover preventive care at no additional charge to patients. It also expanded preventive coverage without copayments for Medicare recipients. For workers and their families, the expense is borne by the company health plan, which passes on some of those costs in the form of higher premiums. Advocates say preventive care saves the health care system money over time.


Colonoscopy is an expensive test that can cost more than $1,000. It's recommended for adults 50 and over, and has become a rite of passage for aging baby boomers.


News that it would be covered free under the health care law got attention, but that was followed quickly by a letdown when many insurers started charging if a polyp or two was discovered and removed during the procedure.


"Insurers were reclassifying it from a preventive test to a diagnostic procedure," said Stephen Finan, policy director for the American Cancer Society Cancer Action Network. "In some cases the cost-sharing was a significant amount of money."


His group was among several that complained to the administration.


Other free preventive services addressed in Wednesday's guidance:


—Insurers must cover testing, if ordered by a doctor, for rare BRCA genes that dramatically increase the risk of breast cancer. Such tests can cost as much as $3,000.


—Over-the-counter products such as aspirin for heart care and nicotine patches for smoking cessation are covered with a doctor's prescription.


—Insurers won't be able to fulfill the law's requirement to cover contraception as preventive care for women if they only pay for birth control pills. A full range of FDA-approved methods must be covered, including long-acting implant and intrauterine devices. Birth control methods for men are not covered as preventive care.


If a health plan does not have a network doctor who performs a particular preventive service, a patient can see a doctor out-of-network without facing copays or additional charges.


Also Wednesday, the government came out with final rules on the benefits that health plans catering to individuals and small businesses will have to offer starting next year, when new insurance markets called exchanges open in each state.


The coverage generally is better than what's now available to people buying individual policies, but close to what medium-size companies offer, with some important improvements in areas such as mental health care.


Benefits include hospital and outpatient care, emergency services, maternity and newborn care, prescriptions, prevention, rehabilitation and ongoing assistance for people with potentially disabling conditions, and dental and vision care for children.


All plans will have to cover the same benefits, but their premiums and cost sharing will vary. There will be four level of coverage — bronze, silver, gold and platinum. Bronze plans will cover 60 percent of expected costs while platinum plans will cover 90 percent.


___


Online:


Health and Human Services Department: http://tinyurl.com/au6lzeo


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Costlier robotic surgery soars for hysterectomies

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CHICAGO (AP) — Robotic surgery is increasingly being used for women's hysterectomies, adding at least $2,000 to the cost without offering much benefit over less high-tech methods, a study found.


The technique was used in just 0.5 percent of operations studied in 2007, but that soared to almost 10 percent by early 2010. Columbia University researchers analyzed data on more than 260,000 women who had their wombs removed at 441 U.S. hospitals for reasons other than cancer. The database covered surgeries performed through the first few months of 2010.


Women who had the robotic operations were slightly less likely to spend more than two days in the hospital, but hospital stays were shorter than that for most women. Also, complications were equally rare among robotic surgery patients and those who had more conventional surgeries. Average costs for robotic hysterectomies totaled nearly $9,000, versus about $3,000 for the least expensive method, a different type of minimally invasive technique using more conventional surgery methods.


Traditionally hysterectomies were done by removing the womb through a large abdominal incision. Newer methods include removing the uterus through the vagina and minimally invasive "keyhole" abdominal operations using more conventional surgery methods, or surgeon-controlled robotic devices.


Robotic operations involve computer-controlled long, thin robot-like "arms" equipped with tiny surgery instruments. Surgeons operate the computer and can see inside the body on the computer screen, through a tiny camera attached to the robotic arms. The initial idea was for surgeons to do these operations miles away from the operating room, but robotic operations now are mostly done with the surgeon in the same room as the patient.


Theoretically, robotic surgeries make it easier to maneuver inside the patient, and are increasingly used for many types of operations, not just hysterectomies.


The main explanation for the big increase "is that robotic surgery has been marketed extensively to not only hospitals and physicians, but also directly to patients. There is minimal data in gynecology that it is advantageous," said Dr. Jason Wright, an assistant professor of women's health and the study's lead author.


The study was published Tuesday in the Journal of the American Medical Association.


"Our findings highlight the importance of developing rational strategies to implement new surgical technologies," the researchers wrote.


They note that 1 in 9 U.S. women will undergo a hysterectomy, usually after the age of 40. Reasons include fibroids and other non-cancerous growths, abnormal bleeding, and cancer.


Traditional abdominal operations remain common and more than 40 percent of women studied had them, costing on average about $6,600.


A JAMA editorial says the study doesn't answer whether the robotic method might be better for certain women, and says more research comparing methods is needed. Still, it says doctors and hospitals have a duty to inform patients about costs of different surgery options.


Dr. Myriam Curet of manufacturer Intuitive Surgical of Sunnyvale, Calif., said surgical robots can help surgeons overcome the limitations of other minimally invasive methods for very overweight patients, those with scarring from other surgeries and other complexities.


___


JAMA: http://www.jama.ama-assn.org


Robotic surgery: http://tinyurl.com/byuljds


___


AP Medical Writer Lindsey Tanner can be reached at http://www.twitter.com/LindseyTanner


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UN warns risk of hepatitis E in S. Sudan grows

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GENEVA (AP) — The United Nations says an outbreak of hepatitis E has killed 111 refugees in camps in South Sudan since July, and has become endemic in the region.


U.N. refugee agency spokesman Adrian Edwards says the influx of people to the camps from neighboring Sudan is believed to be one of the factors in the rapid spread of the contagious, life-threatening inflammatory viral disease of the liver.


Edwards said Friday that the camps have been hit by 6,017 cases of hepatitis E, which is spread through contaminated food and water.


He says the largest number of cases and suspected cases is in the Yusuf Batil camp in Upper Nile state, which houses 37,229 refugees fleeing fighting between rebels and the Sudanese government.


Read More..

UN warns risk of hepatitis E in S. Sudan grows

Label:

GENEVA (AP) — The United Nations says an outbreak of hepatitis E has killed 111 refugees in camps in South Sudan since July, and has become endemic in the region.


U.N. refugee agency spokesman Adrian Edwards says the influx of people to the camps from neighboring Sudan is believed to be one of the factors in the rapid spread of the contagious, life-threatening inflammatory viral disease of the liver.


Edwards said Friday that the camps have been hit by 6,017 cases of hepatitis E, which is spread through contaminated food and water.


He says the largest number of cases and suspected cases is in the Yusuf Batil camp in Upper Nile state, which houses 37,229 refugees fleeing fighting between rebels and the Sudanese government.


Read More..

Study: Fish in drug-tainted water suffer reaction

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BOSTON (AP) — What happens to fish that swim in waters tainted by traces of drugs that people take? When it's an anti-anxiety drug, they become hyper, anti-social and aggressive, a study found. They even get the munchies.


It may sound funny, but it could threaten the fish population and upset the delicate dynamics of the marine environment, scientists say.


The findings, published online Thursday in the journal Science, add to the mounting evidence that minuscule amounts of medicines in rivers and streams can alter the biology and behavior of fish and other marine animals.


"I think people are starting to understand that pharmaceuticals are environmental contaminants," said Dana Kolpin, a researcher for the U.S. Geological Survey who is familiar with the study.


Calling their results alarming, the Swedish researchers who did the study suspect the little drugged fish could become easier targets for bigger fish because they are more likely to venture alone into unfamiliar places.


"We know that in a predator-prey relation, increased boldness and activity combined with decreased sociality ... means you're going to be somebody's lunch quite soon," said Gregory Moller, a toxicologist at the University of Idaho and Washington State University. "It removes the natural balance."


Researchers around the world have been taking a close look at the effects of pharmaceuticals in extremely low concentrations, measured in parts per billion. Such drugs have turned up in waterways in Europe, the U.S. and elsewhere over the past decade.


They come mostly from humans and farm animals; the drugs pass through their bodies in unmetabolized form. These drug traces are then piped to water treatment plants, which are not designed to remove them from the cleaned water that flows back into streams and rivers.


The Associated Press first reported in 2008 that the drinking water of at least 51 million Americans carries low concentrations of many common drugs. The findings were based on questionnaires sent to water utilities, which reported the presence of antibiotics, sedatives, sex hormones and other drugs.


The news reports led to congressional hearings and legislation, more water testing and more public disclosure. To this day, though, there are no mandatory U.S. limits on pharmaceuticals in waterways.


The research team at Sweden's Umea University used minute concentrations of 2 parts per billion of the anti-anxiety drug oxazepam, similar to concentrations found in real waters. The drug belongs to a widely used class of medicines known as benzodiazepines that includes Valium and Librium.


The team put young wild European perch into an aquarium, exposed them to these highly diluted drugs and then carefully measured feeding, schooling, movement and hiding behavior. They found that drug-exposed fish moved more, fed more aggressively, hid less and tended to school less than unexposed fish. On average, the drugged fish were more than twice as active as the others, researcher Micael Jonsson said. The effects were more pronounced at higher drug concentrations.


"Our first thought is, this is like a person diagnosed with ADHD," said Jonsson, referring to attention deficit-hyperactivity disorder. "They become asocial and more active than they should be."


Tomas Brodin, another member of the research team, called the drug's environmental impact a global problem. "We find these concentrations or close to them all over the world, and it's quite possible or even probable that these behavioral effects are taking place as we speak," he said Thursday in Boston at the annual meeting of the American Association for the Advancement of Science.


Most previous research on trace drugs and marine life has focused on biological changes, such as male fish that take on female characteristics. However, a 2009 study found that tiny concentrations of antidepressants made fathead minnows more vulnerable to predators.


It is not clear exactly how long-term drug exposure, beyond the seven days in this study, would affect real fish in real rivers and streams. The Swedish researchers argue that the drug-induced changes could jeopardize populations of this sport and commercial fish, which lives in both fresh and brackish water.


Water toxins specialist Anne McElroy of Stony Brook University in New York agreed: "These lower chronic exposures that may alter things like animals' mating behavior or its ability to catch food or its ability to avoid being eaten — over time, that could really affect a population."


Another possibility, the researchers said, is that more aggressive feeding by the perch on zooplankton could reduce the numbers of these tiny creatures. Since zooplankton feed on algae, a drop in their numbers could allow algae to grow unchecked. That, in turn, could choke other marine life.


The Swedish team said it is highly unlikely people would be harmed by eating such drug-exposed fish. Jonsson said a person would have to eat 4 tons of perch to consume the equivalent of a single pill.


Researchers said more work is needed to develop better ways of removing drugs from water at treatment plants. They also said unused drugs should be brought to take-back programs where they exist, instead of being flushed down the toilet. And they called on pharmaceutical companies to work on "greener" drugs that degrade more easily.


Sandoz, one of three companies approved to sell oxazepam in the U.S., "shares society's desire to protect the environment and takes steps to minimize the environmental impact of its products over their life cycle," spokeswoman Julie Masow said in an emailed statement. She provided no details.


___


Online:


Overview of the drug: http://www.nlm.nih.gov/medlineplus/druginfo/meds/a682050.html


Read More..

Study: Fish in drug-tainted water suffer reaction

Label:

BOSTON (AP) — What happens to fish that swim in waters tainted by traces of drugs that people take? When it's an anti-anxiety drug, they become hyper, anti-social and aggressive, a study found. They even get the munchies.


It may sound funny, but it could threaten the fish population and upset the delicate dynamics of the marine environment, scientists say.


The findings, published online Thursday in the journal Science, add to the mounting evidence that minuscule amounts of medicines in rivers and streams can alter the biology and behavior of fish and other marine animals.


"I think people are starting to understand that pharmaceuticals are environmental contaminants," said Dana Kolpin, a researcher for the U.S. Geological Survey who is familiar with the study.


Calling their results alarming, the Swedish researchers who did the study suspect the little drugged fish could become easier targets for bigger fish because they are more likely to venture alone into unfamiliar places.


"We know that in a predator-prey relation, increased boldness and activity combined with decreased sociality ... means you're going to be somebody's lunch quite soon," said Gregory Moller, a toxicologist at the University of Idaho and Washington State University. "It removes the natural balance."


Researchers around the world have been taking a close look at the effects of pharmaceuticals in extremely low concentrations, measured in parts per billion. Such drugs have turned up in waterways in Europe, the U.S. and elsewhere over the past decade.


They come mostly from humans and farm animals; the drugs pass through their bodies in unmetabolized form. These drug traces are then piped to water treatment plants, which are not designed to remove them from the cleaned water that flows back into streams and rivers.


The Associated Press first reported in 2008 that the drinking water of at least 51 million Americans carries low concentrations of many common drugs. The findings were based on questionnaires sent to water utilities, which reported the presence of antibiotics, sedatives, sex hormones and other drugs.


The news reports led to congressional hearings and legislation, more water testing and more public disclosure. To this day, though, there are no mandatory U.S. limits on pharmaceuticals in waterways.


The research team at Sweden's Umea University used minute concentrations of 2 parts per billion of the anti-anxiety drug oxazepam, similar to concentrations found in real waters. The drug belongs to a widely used class of medicines known as benzodiazepines that includes Valium and Librium.


The team put young wild European perch into an aquarium, exposed them to these highly diluted drugs and then carefully measured feeding, schooling, movement and hiding behavior. They found that drug-exposed fish moved more, fed more aggressively, hid less and tended to school less than unexposed fish. On average, the drugged fish were more than twice as active as the others, researcher Micael Jonsson said. The effects were more pronounced at higher drug concentrations.


"Our first thought is, this is like a person diagnosed with ADHD," said Jonsson, referring to attention deficit-hyperactivity disorder. "They become asocial and more active than they should be."


Tomas Brodin, another member of the research team, called the drug's environmental impact a global problem. "We find these concentrations or close to them all over the world, and it's quite possible or even probable that these behavioral effects are taking place as we speak," he said Thursday in Boston at the annual meeting of the American Association for the Advancement of Science.


Most previous research on trace drugs and marine life has focused on biological changes, such as male fish that take on female characteristics. However, a 2009 study found that tiny concentrations of antidepressants made fathead minnows more vulnerable to predators.


It is not clear exactly how long-term drug exposure, beyond the seven days in this study, would affect real fish in real rivers and streams. The Swedish researchers argue that the drug-induced changes could jeopardize populations of this sport and commercial fish, which lives in both fresh and brackish water.


Water toxins specialist Anne McElroy of Stony Brook University in New York agreed: "These lower chronic exposures that may alter things like animals' mating behavior or its ability to catch food or its ability to avoid being eaten — over time, that could really affect a population."


Another possibility, the researchers said, is that more aggressive feeding by the perch on zooplankton could reduce the numbers of these tiny creatures. Since zooplankton feed on algae, a drop in their numbers could allow algae to grow unchecked. That, in turn, could choke other marine life.


The Swedish team said it is highly unlikely people would be harmed by eating such drug-exposed fish. Jonsson said a person would have to eat 4 tons of perch to consume the equivalent of a single pill.


Researchers said more work is needed to develop better ways of removing drugs from water at treatment plants. They also said unused drugs should be brought to take-back programs where they exist, instead of being flushed down the toilet. And they called on pharmaceutical companies to work on "greener" drugs that degrade more easily.


Sandoz, one of three companies approved to sell oxazepam in the U.S., "shares society's desire to protect the environment and takes steps to minimize the environmental impact of its products over their life cycle," spokeswoman Julie Masow said in an emailed statement. She provided no details.


___


Online:


Overview of the drug: http://www.nlm.nih.gov/medlineplus/druginfo/meds/a682050.html


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Clues to why most survived China melamine scandal

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WASHINGTON (AP) — Scientists wondering why some children and not others survived one of China's worst food safety scandals have uncovered a suspect: germs that live in the gut.


In 2008, at least six babies died and 300,000 became sick after being fed infant formula that had been deliberately and illegally tainted with the industrial chemical melamine. There were some lingering puzzles: How did it cause kidney failure, and why wasn't everyone equally at risk?


A team of researchers from the U.S. and China re-examined those questions in a series of studies in rats. In findings released Wednesday, they reported that certain intestinal bacteria play a crucial role in how the body handles melamine.


The intestines of all mammals teem with different species of bacteria that perform different jobs. To see if one of those activities involves processing melamine, researchers from the University of North Carolina at Greensboro and Shanghai Jiao Tong University gave lab rats antibiotics to kill off some of the germs — and then fed them melamine.


The antibiotic-treated rats excreted twice as much of the melamine as rats that didn't get antibiotics, and they experienced fewer kidney stones and other damage.


A closer look identified why: A particular intestinal germ — named Klebsiella terrigena — was metabolizing melamine to create a more toxic byproduct, the team reported in the journal Science Translational Medicine.


Previous studies have estimated that fewer than 1 percent of healthy people harbor that bacteria species. A similar fraction of melamine-exposed children in China got sick, the researchers wrote. But proving that link would require studying stool samples preserved from affected children, they cautioned.


Still, the research is pretty strong, said microbiologist Jack Gilbert of the University of Chicago and Argonne National Laboratory, who wasn't involved in the new study.


More importantly, "this paper adds to a growing body of evidence which suggests that microbes in the body play a significant role in our response to toxicity and in our health in general," Gilbert said.


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Pope shows lifetime jobs aren't always for life

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The world seems surprised that an 85-year-old globe-trotting pope who just started tweeting wants to resign, but should it be? Maybe what should be surprising is that more leaders his age do not, considering the toll aging takes on bodies and minds amid a culture of constant communication and change.


There may be more behind the story of why Pope Benedict XVI decided to leave a job normally held for life. But the pontiff made it about age. He said the job called for "both strength of mind and body" and said his was deteriorating. He spoke of "today's world, subject to so many rapid changes," implying a difficulty keeping up despite his recent debut on Twitter.


"This seemed to me a very brave, courageous decision," especially because older people often don't recognize their own decline, said Dr. Seth Landefeld, an expert on aging and chairman of medicine at the University of Alabama at Birmingham.


Age has driven many leaders from jobs that used to be for life — Supreme Court justices, monarchs and other heads of state. As lifetimes expand, the woes of old age are catching up with more in seats of power. Some are choosing to step down rather than suffer long declines and disabilities as the pope's last predecessor did.


Since 1955, only one U.S. Supreme Court justice — Chief Justice William Rehnquist — has died in office. Twenty-one others chose to retire, the most recent being John Paul Stevens, who stepped down in 2010 at age 90.


When Thurgood Marshall stepped down in 1991 at the age of 82, citing health reasons, the Supreme Court justice's answer was blunt: "What's wrong with me? I'm old. I'm getting old and falling apart."


One in 5 U.S. senators is 70 or older, and some have retired rather than seek new terms, such as Hawaii's Daniel Akaka, who left office in January at age 88.


The Netherlands' Queen Beatrix, who just turned 75, recently said she will pass the crown to a son and put the country "in the hands of a new generation."


In Germany, where the pope was born, Chancellor Angela Merkel, who is 58, said the pope's decision that he was no longer fit for the job "earns my very highest respect."


"In our time of ever-lengthening life, many people will be able to understand how the pope as well has to deal with the burdens of aging," she told reporters in Berlin.


Experts on aging agreed.


"People's mental capacities in their 80s and 90s aren't what they were in their 40s and 50s. Their short-term memory is often not as good, their ability to think quickly on their feet, to execute decisions is often not as good," Landefeld said. Change is tougher to handle with age, and leaders like popes and presidents face "extraordinary demands that would tax anybody's physical and mental stamina."


Dr. Barbara Messinger-Rapport, geriatrics chief at the Cleveland Clinic, noted that half of people 85 and older in developed countries have some dementia, usually Alzheimer's. Even without such a disease, "it takes longer to make decisions, it takes longer to learn new things," she said.


But that's far from universal, said Dr. Thomas Perls, an expert on aging at Boston University and director of the New England Centenarians Study.


"Usually a man who is entirely healthy in his early 80s has demonstrated his survival prowess" and can live much longer, he said. People of privilege have better odds because they have access to good food and health care, and tend to lead clean lives.


"Even in the 1500s and 1600s there were popes in their 80s. It's remarkable. That would be today's centenarians," Perls said.


Arizona Sen. John McCain turned 71 while running for president in 2007. Had he won, he would have been the oldest person elected to a first term as president. Ronald Reagan was days away from turning 70 when he started his first term as president in 1981; he won re-election in 1984. Vice President Joe Biden just turned 70.


In the U.S. Senate, where seniority is rewarded and revered, South Carolina's Strom Thurmond didn't retire until age 100 in 2002. Sen. Robert Byrd of West Virginia was the longest-serving senator when he died in office at 92 in 2010.


Now the oldest U.S. senator is 89-year-old Frank Lautenberg of New Jersey. The oldest congressman is Ralph Hall of Texas who turns 90 in May.


The legendary Alan Greenspan was about to turn 80 when he retired as chairman of the Federal Reserve in 2006; he still works as a consultant.


Elsewhere around the world, Cuba's Fidel Castro — one of the world's longest serving heads of state — stepped down in 2006 at age 79 due to an intestinal illness that nearly killed him, handing power to his younger brother Raul. But the island is an example of aged leaders pushing on well into their dotage. Raul Castro now is 81 and his two top lieutenants are also octogenarians. Later this month, he is expected to be named to a new, five-year term as president.


Other leaders who are still working:


—England's Queen Elizabeth, 86.


—Abdullah bin Abd al-Aziz al-Saud, king of Saudi Arabia, 88.


—Sabah al-Ahmad al-Jaber al-Sabah, emir of Kuwait, 83.


—Ruth Bader Ginsburg, U.S. Supreme Court associate justice, 79.


__


Associated Press writers Paul Haven in Havana, Cuba; David Rising in Berlin; Seth Borenstein, Mark Sherman and Matt Yancey in Washington, and researcher Judy Ausuebel in New York contributed to this report.


___


Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP


Read More..

Pope shows lifetime jobs aren't always for life

Label:

The world seems surprised that an 85-year-old globe-trotting pope who just started tweeting wants to resign, but should it be? Maybe what should be surprising is that more leaders his age do not, considering the toll aging takes on bodies and minds amid a culture of constant communication and change.


There may be more behind the story of why Pope Benedict XVI decided to leave a job normally held for life. But the pontiff made it about age. He said the job called for "both strength of mind and body" and said his was deteriorating. He spoke of "today's world, subject to so many rapid changes," implying a difficulty keeping up.


"Usually a man who is entirely healthy in his early 80s has demonstrated his survival prowess" and can live much longer, said Dr. Thomas Perls, an expert on aging at Boston University and director of the New England Centenarians Study. The pope's comments about strength of mind "does make one worry that he is concerned about his mind," Perls said.


But aging alone is reason enough. It has driven many from jobs that used to be for life — Supreme Court justices, monarchs and other heads of state. As lifetimes expand, the woes of old age are catching up with more in seats of power. Some are choosing to step down rather than suffer long declines and disabilities as the pope's last predecessor did.


Since 1955, only one U.S. Supreme Court justice — Chief Justice William Rehnquist — has died in office. Twenty-one others chose to retire.


One in 5 U.S. senators is 70 or older, and some have retired rather than seek new terms, such as Hawaii's Daniel Akaka, who left office in January at age 88.


The Netherlands' Queen Beatrix, who just turned 75, recently said she will pass the crown to a son and put the country "in the hands of a new generation."


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After early start, worst of flu season may be over

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NEW YORK (AP) — The worst of the flu season appears to be over.


The number of states reporting intense or widespread illnesses dropped again last week, and in a few states there was very little flu going around, U.S. health officials said Friday.


The season started earlier than normal, first in the Southeast and then spreading. But now, by some measures, flu activity has been ebbing for at least four weeks in much of the country. Flu and pneumonia deaths also dropped the last two weeks, the Centers for Disease Control and Prevention reported.


"It's likely that the worst of the current flu season is over," CDC spokesman Tom Skinner said.


But flu is hard to predict, he and others stressed, and there have been spikes late in the season in the past.


For now, states like Georgia and New York — where doctor's offices were jammed a few weeks ago — are reporting low flu activity. The hot spots are now the West Coast and the Southwest.


Among the places that have seen a drop: Lehigh Valley Hospital-Cedar Crest in Allentown, Pa., which put up a tent outside its emergency room last month to help deal with the steady stream of patients. There were about 100 patients each day back then. Now it's down to 25 and the hospital may pack up its tent next week, said Terry Burger, director of infection control and prevention for the hospital.


"There's no question that we're seeing a decline," she said.


In early December, CDC officials announced flu season had arrived, a month earlier than usual. They were worried, saying it had been nine years since a winter flu season started like this one. That was 2003-04 — one of the deadliest seasons in the past 35 years, with more than 48,000 deaths.


Like this year, the major flu strain was one that tends to make people sicker, especially the elderly, who are most vulnerable to flu and its complications


But back then, that year's flu vaccine wasn't made to protect against that bug, and fewer people got flu shots. The vaccine is reformulated almost every year, and the CDC has said this year's vaccine is a good match to the types that are circulating. A preliminary CDC study showed it is about 60 percent effective, which is close to the average.


So far, the season has been labeled moderately severe.


Like others, Lehigh Valley's Burger was cautious about making predictions. "I'm not certain we're completely out of the woods," with more wintry weather ahead and people likely to be packed indoors where flu can spread around, she said.


The government does not keep a running tally of flu-related deaths in adults, but has received reports of 59 deaths in children. The most — nine — were in Texas, where flu activity was still high last week. Roughly 100 children die in an average flu season, the CDC says


On average, about 24,000 Americans die each flu season, according to the CDC.


According to the CDC report, the number of states with intense activity is down to 19, from 24 the previous week, and flu is widespread in 38 states, down from 42.


Flu is now minimal in Florida, Kentucky, Maine, Montana, New Hampshire and South Carolina.


___


Online:


CDC: http://www.cdc.gov/flu/


Read More..

After early start, worst of flu season may be over

Label:

NEW YORK (AP) — The worst of the flu season appears to be over.


The number of states reporting intense or widespread illnesses dropped again last week, and in a few states there was very little flu going around, U.S. health officials said Friday.


The season started earlier than normal, first in the Southeast and then spreading. But now, by some measures, flu activity has been ebbing for at least four weeks in much of the country. Flu and pneumonia deaths also dropped the last two weeks, the Centers for Disease Control and Prevention reported.


"It's likely that the worst of the current flu season is over," CDC spokesman Tom Skinner said.


But flu is hard to predict, he and others stressed, and there have been spikes late in the season in the past.


For now, states like Georgia and New York — where doctor's offices were jammed a few weeks ago — are reporting low flu activity. The hot spots are now the West Coast and the Southwest.


Among the places that have seen a drop: Lehigh Valley Hospital-Cedar Crest in Allentown, Pa., which put up a tent outside its emergency room last month to help deal with the steady stream of patients. There were about 100 patients each day back then. Now it's down to 25 and the hospital may pack up its tent next week, said Terry Burger, director of infection control and prevention for the hospital.


"There's no question that we're seeing a decline," she said.


In early December, CDC officials announced flu season had arrived, a month earlier than usual. They were worried, saying it had been nine years since a winter flu season started like this one. That was 2003-04 — one of the deadliest seasons in the past 35 years, with more than 48,000 deaths.


Like this year, the major flu strain was one that tends to make people sicker, especially the elderly, who are most vulnerable to flu and its complications


But back then, that year's flu vaccine wasn't made to protect against that bug, and fewer people got flu shots. The vaccine is reformulated almost every year, and the CDC has said this year's vaccine is a good match to the types that are circulating. A preliminary CDC study showed it is about 60 percent effective, which is close to the average.


So far, the season has been labeled moderately severe.


Like others, Lehigh Valley's Burger was cautious about making predictions. "I'm not certain we're completely out of the woods," with more wintry weather ahead and people likely to be packed indoors where flu can spread around, she said.


The government does not keep a running tally of flu-related deaths in adults, but has received reports of 59 deaths in children. The most — nine — were in Texas, where flu activity was still high last week. Roughly 100 children die in an average flu season, the CDC says


On average, about 24,000 Americans die each flu season, according to the CDC.


According to the CDC report, the number of states with intense activity is down to 19, from 24 the previous week, and flu is widespread in 38 states, down from 42.


Flu is now minimal in Florida, Kentucky, Maine, Montana, New Hampshire and South Carolina.


___


Online:


CDC: http://www.cdc.gov/flu/


Read More..

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