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Geriatrician Available To Discuss New Research On Falls In Older Adults
Each year in this country, one of every three people over age 65 suffers a fall, resulting in nearly 16,000 deaths. The federal government estimates that 1.8 million older adults who fall are treated each year in hospital emergency rooms for nonfatal injuries - including bruises, fractures and head trauma - and that 433,000 of those individuals need to be hospitalized because of their injuries. Research published this month in the Journal of the American Geriatrics Society has found that a significant number of those falls - an average of 129 per day - involve the use of walkers and canes, the very devices on which millions rely to help them avoid the dangers posed by falling.
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Vaxart Begins Animal Testing Of H1N1 Flu Vaccine Candidate
Vaxart, Inc., a biotechnology company focused on the development of oral vaccines, announced today that the company has created a candidate vaccine for H1N1 influenza (swine flu). On Saturday, May 23, Vaxart began testing for immune responses in animals, just 25 days after initiating the project. The company will compare performance of the research-grade H1N1 vaccine to its successful avian flu vaccine as a first step towards potential human clinical testing.
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Australian Medical Association: Rural Health A Bright Spot In Budget
Measures contained in the budget will help attract and retain more doctors to rural and remote areas, the AMA said today.
Oncology

Placenta Harmed By Cocaine And Heroin

Cocaine and heroin increase permeability of the placenta. Researchers writing in BioMed Central"s open access journal Reproductive Biology and Endocrinology have shown that exposure to the drugs causes an increase in the passage of some chemicals into the fetus. Antoine Malek led a team of researchers from Zurich University Hospital"s Department of Obstetrics, who used a perfusion technique to study human placental tissue function in the lab. They found that exposure to cocaine and/or heroin in the presence of methadone increased transfer of a test chemical called antipyrine across the organ. Malek said, "As the consumption of illegal drugs, especially cocaine, is increasing in many countries, our results concerning cocaine and heroin causing an increased antipyrine transfer may improve the practical management in monitoring pregnant women". As complete abstinence is impossible for many people addicted to drugs who become pregnant, maintenance treatment with methadone is often used to limit damage to the developing child. However, methadone itself can also be dangerous, too much fetal exposure leading to harmful withdrawal symptoms in the newborn. Malek and his colleagues sought to investigate the effects cocaine and heroin on the placenta. They found that while the narcotics didn"t increase transfer of methadone, they did allow transfer of other test substances. This suggests the barrier function of the placenta may be compromised. According to Malek "More toxic substances or bacteria and viruses may cross the placenta and harm the fetus. Previous studies have reported increased prevalence of infectious diagnoses in cocaine-exposed infants". These results emphasise the fact that pregnant drug users who can"t abstain completely must attempt to exclusively use methadone. Combining it with other drugs could cause extra harm to their child. Notes: The impact of cocaine and heroin on the placental transfer of methadone Antoine Malek, Cristina Obrist, Silvana Wenzinger and Ursula von Mandach Reproductive Biology and Endocrinology (in press) Graeme Baldwin BioMed Central


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