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Study Reveals Bone Coupling Factor Key To Skeletal Health
Researchers at the University of Alabama at Birmingham (UAB) have discovered a molecular coupling factor that helps bones grow and remodel themselves to stay strong, a finding that could lead to better bone-building therapies and new osteoporosis drugs, the researchers said

Study Looks At HIV, Risk Behaviors Among Male Clients Of Sex Workers In Tijuana, Mexico
"A large percentage" of U.S. and Mexican men who regularly engage in sexual activity with sex workers in Tijuana, Mexico, do not use condoms and have a history of substance and alcohol use, according to a study published in the online journal AIDS, the Los Angeles Times" blog "L.A. Now" reports. The study, by researchers from Mexico and the University of California-San Diego, surveyed 400 men - both Mexico and U.S. residents - and found that half of the men had unprotected sex with a female sex worker within the last four months. Researchers noted that although Tijuana authorities require that sex workers be registered and tested regularly for HIV, "only about half of [sex workers] have registered or been tested," according to the blog. Thomas Patterson of the UC-San Diego"s department of psychiatry and the Veterans Affairs health center, said the findings indicate a need for an educational campaign targeting men who frequent sex workers (Perry, 7/11).
News of the day
IFPMA Director General Michael D. Boyd's Remarks At WHO-UN Meeting With Vaccine CEOs
Mr Secretary General, Madame Director General, Ladies and Gentlemen, we are gathered here today in the shadow of the pandemic influenza threat posed by the Novel A / H1N1 virus.
Cardiovascular

Growing Evidence Of Marijuana Smoke's Potential Dangers

In a finding that challenges the increasingly popular belief that smoking marijuana is less harmful to health than smoking tobacco, researchers in Canada are reporting that smoking marijuana, like smoking tobacco, has toxic effects on cells. Their study is scheduled for the Aug. 17 issue of ACS" Chemical Research in Toxicology, a monthly journal. Rebecca Maertens and colleagues note that people often view marijuana as a "natural" product and less harmful than tobacco. As public attitudes toward marijuana change and legal restrictions ease in some countries, use of marijuana is increasing. Scientists know that marijuana smoke has adverse effects on the lungs. However, there is little knowledge about marijuana"s potential to cause lung cancer due to the difficulty in identifying and studying people who have smoked only marijuana. The new study begins to address that question by comparing marijuana smoke vs. tobacco smoke in terms of toxicity to cells and to DNA. Scientists exposed cultured animal cells and bacteria to condensed smoke samples from both marijuana and tobacco. There were distinct differences in the degree and type of toxicity elicited by marijuana and cigarette smoke. Marijuana smoke caused significantly more damage to cells and DNA than tobacco smoke, the researchers note. However, tobacco smoke caused chromosome damage while marijuana did not. Chemical Research in Toxicology


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