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Sleuths Follow Lung Stem Cells For Generations To Shed Light On Healing
More than one kind of stem cell is required to support the upkeep and repair of the lungs, according to a new study published in the journal Cell Stem Cell.
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Studies Examine Morning Sickness Drug, Progesterone Use To Prevent Premature Birth
The following summarizes news coverage on two pregnancy-related studies. ~ Morning sickness: The commonly prescribed heartburn drug metoclopramide -- sold generically and under the brand-names Reglan, Octamide and Maxolon -- can be used to treat morning sickness without harming the health of the fetus, according to a study published on Thursday in the New England Journal of Medicine, Time reports. The drug, which also has anti-nausea properties, is not FDA-approved for use in pregnant women in the U.S., though it is commonly prescribed in European and other countries to treat morning sickness (Park, Time, 6/10). According to the Los Angeles Times, U.S. physicians occasionally prescribe metoclopramide to treat severe morning sickness cases. The new study found that there were no statistically significant differences between infants born to women who took metoclopramide and those who did not. Researchers said that the findings "provide reassurance regarding the safety of metoclopramide for the fetus when the drug is given to women to relieve nausea and vomiting during pregnancy." The study involved 81,703 births among women enrolled in Israel"s largest health HMO, including 33,458 who used the drug (Maugh, Los Angeles Times, 6/11). Jennifer Niebyl, a professor of obstetrics and gynecology at the University of Iowa, said, "There are very few drugs approved for use in the first trimester of pregnancy. But this study could lead to metoclopramide getting approved to treat morning sickness because this is good data with big numbers" (Time, 6/10).~ Progesterone: The hormone progesterone was not effective at preventing premature births among women pregnant with twins, despite evidence suggesting its effectiveness at preventing premature births in single pregnancies, according to a University of Edinburgh study published in the journal Lancet, Reuters reports. Multiple pregnancies have a larger health risk for women and significantly increase the likelihood of miscarriage, premature birth and long-term health problems. The study involved 500 women who took either progesterone or a placebo daily for 10 weeks. Although previous studies have shown that progesterone might prevent premature birth in certain high-risk pregnancies, the new findings show the treatment did not reduce the likelihood of premature delivery or a fetus dying in utero in twin pregnancies. Twenty-five percent of women delivered or had a fetus die before 34 weeks in the progesterone group, compared with 20% in the placebo group (Kahn, Reuters, 6/10).
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FluoroPharma To Present Phase I Study Results Of Novel Positron Emission Tomography (PET) Myocardial Perfusion Imaging (MPI) Tracer
FluoroPharma Inc., a company developing breakthrough PET molecular imaging agents, announced that it will present Phase I data relating to the safety, dosimetry, and pharmacokinetics in human subjects of BFPET, its novel 18-F labeled PET tracer for myocardial perfusion imaging, at the Society of Nuclear Medicine 2009 Annual Meeting in Toronto.
Endocrinology

FDA Approves Effient To Reduce The Risk Of Heart Attack In Angioplasty Patients

The U.S. Food and Drug Administration has approved the blood-thinning drug Effient tablets (prasugrel) to reduce the risk of blood clots from forming in patients who undergo angioplasty, a common procedure to unblock a clogged coronary artery. During an angioplasty, a balloon is used to open the artery that has been narrowed by atherosclerotic plaque.Often, a tiny wire mesh scaffold (stent) is inserted into the blood vessel to help keep the artery open after the procedure. Platelets in the blood can clump around the procedure site, causing clots that can lead to heart attack, stroke, and death. Effient was studied in a 13,608-patient trial comparing it to the blood-thinning drug, Plavix (clopidogrel), in patients with a threatened heart attack or an actual heart attack who were about to undergo angioplasty. The fraction of patients who had subsequent non-fatal heart attacks was reduced from 9.1 percent in patients who received Plavix to 7.0 percent in patients who received Effient.While the numbers of deaths and strokes were similar with both drugs, patients with a history of stroke were more likely to have another stroke while taking Effient. In addition, there was a greater risk of significant, sometimes fatal bleeding seen in patients who took Effient. "Effient offers physicians an alternative treatment for preventing dangerous blood clots from forming and causing a heart attack or stroke during or after an angioplasty procedure," said John Jenkins, M.D., director of the Office of New Drugs, in the FDA"s Center for Drug Evaluation and Research."Physicians must carefully weigh the potential benefits and risks of Effient as they decide which patients should receive the drug." The drug"s labeling will include a boxed warning alerting physicians that the drug can cause significant, sometimes fatal, bleeding. The drug should not be used in patients with active pathological bleeding, a history of mini-strokes (transient ischemic attacks) or stroke, or urgent need for surgery, including coronary artery bypass graft surgery. Effient is manufactured by Eli Lilly and Company of Indianapolis, in partnership with Tokyo-based Daiichi Sankyo Ltd. U.S. Food and Drug Administration


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