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Advisory: If You Have Taken Flomax(R), Tell Your Ophthalmologist BEFORE Having Cataract Surgery
The results of a new study reinforce an advisory that patients taking Flomax® (Tamsulosin) to treat prostate enlargement and urinary problems should inform their ophthalmologist about their use of this drug before undergoing eye surgery. The advisory was issued by the American Academy of Ophthalmology (Academy) and the American Society of Cataract and Refractive Surgery (ASCRS) and updates the advisory the organizations released in 2006. The new study, published last month in the Journal of the American Medical Association, found that the alpha-blocker Flomax increased the risk of certain complications following cataract surgery.
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Head Movement Is More Important Than Gender In Nonverbal Communication, Psychologists Find
It is well known that people use head motion during conversation to convey a range of meanings and emotions, and that women use more active head motion when conversing with each other than men use when they talk with each other.
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International Team Of Physician-astronauts Draws Upon First-hand Space Flight Experience In CMAJ Article
An international team of astronauts, including Canadian Dr. Robert Thirsk who launched into space on May 27, have just published an article in the Canadian Medical Association Journal (CMAJ) about the complex physiologic changes and psychological effects that occur in space. They draw upon first-hand experience as both physician-astronauts and crew medical officers on space missions and from NASA literature and peer-reviewed medical s.
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Exposure To Controversial Chemical May Be Greater Than Dose Considered Safe

People are likely being exposed to the commonly used chemical bisphenol A (BPA) at levels much higher than the recommended safe daily dose, according to a new study in monkeys. The results will be presented Thursday at The Endocrine Society"s 91st Annual Meeting in Washington, D.C. "BPA is now known to be a potent estrogen," said Frederick vom Saal, PhD, a co-author of the new study and a professor of biological sciences at the University of Missouri-Columbia. "Human and animal studies indicate it could be related to diabetes, heart disease, liver abnormalities, miscarriage and other reproductive abnormalities, as well as prostate and breast cancer." The U.S. Food and Drug Administration (FDA) declared BPA is safe based on estimates that people consume only small amounts each day from food. However, recent research indicated that U.S. adults are exposed to more BPA from multiple s than previously thought, vom Saal said. BPA is found in polycarbonate plastic food and beverage containers, such as water and infant bottles, as well as in the epoxy resin lining of cans and other s. The chemical can leach into food and beverages, according to the National Institutes of Health, which funded the study by vom Saal and colleagues. "Between 8 and 9 billion pounds of BPA are used in products every year," vom Saal said. In their study, he and his colleagues fed five female adult monkeys an oral dose of BPA (400 micrograms per kilogram of body weight). This amount is more than 400 times higher than the amount that the U.S. Food and Drug Administration (FDA) estimates that human adults are exposed to and 8 times higher than the estimated safe daily amount to consume, according to vom Saal. Yet the blood levels of biologically active BPA over the next 24 hours were lower in the monkeys than the average levels found in people in the United States and other developed countries, vom Saal said. For levels to be higher in people when measured, their exposure dose must be greater than that given to the monkeys, he explained. "These results suggest that the average person is likely exposed to a daily dose of BPA that far exceeds the current estimated safe daily intake dose," vom Saal said. He said that BPA exposure must come from many unknown s, in addition to food and beverage containers. Like drugs, BPA acts in pulses, with each exposure creating a high-level pulse before it is cleared in the urine, according to vom Saal. The researchers are continuing the study in more monkeys, but vom Saal said they do not expect to get different findings because the data in the first five animals were "very consistent." The species of monkey that they used (rhesus) metabolizes BPA similar to humans, he added. Aaron Lohr The Endocrine Society


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