Vidyya Medical News Service
Volume 6 Issue 218 Published - 14:00 UTC 08:00 EST 5-Aug-2004 Next Update - 14:00 UTC 08:00 EST 6-Aug-2004
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Effectiveness of behavioral interventions to modify physical activity behaviors in general populations and cancer patients and survivors
Some behavior modification programs designed to increase exercise show continued effects for at least 3 months after they end, according to a new report released by the Agency for Healthcare Research and Quality and supported by the National Cancer Institute, part of the National Institutes of Health. However, the review of existing evidence also demonstrated that it is difficult to achieve sustainable gains in increased physical activity because few studies looked at the effects of these programs for more than 1 year.  more

AHRQ Evidence Report/Technology Assessment: Behavioral interventions to modify physical activity behaviors in certain populations
The first specific aim of this review was to examine the evidence that physical activity interventions, alone or combined with diet modification or smoking cessation, are effective in helping individuals sustainably increase their aerobic physical activity or maintain adequate aerobic physical activity.  more

Free antiretroviral drugs cut Taiwan's HIV transmission rate in half
A government policy of providing HIV-infected citizens with free access to potent regimens of antiretroviral drugs reduced the rate of HIV transmission by 53% in Taiwan, according to a study in the 15 August issue of The Journal of Infectious Diseases, now available online. more


Viral proteins may prevent bacterial infections
Researchers from Rockefeller University are enlisting proteins produced by viruses in a novel strategy that may someday help prevent bacterial infections in hospitals and nursing homes.  more

Three AIDS medicines will be removed from prequalification list this week
As part of the continuous effort to rigorously monitor the quality of medicines, the World Health Organization (WHO) is carrying out systematic inspections of contract research organizations which have done bioequivalence studies for prequalified medicines, starting with products for priority diseases. When the organizations fail to meet international standards, the products they manufacture are removed from WHO's prequalification drug lists.  more

Protein loss plays role in acute T-cell leukemia
The loss of a key protein (Smad3) in a pathway that helps prevent tumors from forming is specific to one form of childhood leukemia, but not to other pediatric and adult forms of leukemia.  more

Symptoms of foodborne botulism may help predict fatality
The extreme toxicity of botulism makes it a potentially lethal type of food poisoning and a possible agent of bioterrorist attack. Data from the Republic of Georgia (a former Soviet nation south of Russia) suggest that an infected person's symptoms could help doctors predict how immediate the risk of death is, allowing physicians to prioritize victim care based on severity of symptoms, according to an article in the 1 August issue of Clinical Infectious Diseases, now available online.  more

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