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Greater Academic Disengagement In US Teens
In the United States, adolescence is a time when many teens become less interested in academics. A new longitudinal study has found that this disengagement is greater for American teens than for Chinese teens.
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Senate Weighs New Taxes To Fund Reform
"Senate Finance Committee Chairman Max Baucus (D-Mont.) presented his members Thursday with more than a dozen ways to pay for health care legislation, ranging from new fees on industry to an income-tax hike on couples making more than $1 million a year," Politico reports.
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New Study Reveals Wide Variations In Depression Diagnoses Among Ethnic Groups
Whites experiencing depression are far more likely to be diagnosed by a physician than other ethnic groups, according to a new Consumer Health Sciences (CHS) study presented today at the 14th Annual ISPOR (International Society for Pharmacoeconomic and Outcomes Research) Conference in Orlando, Florida. The study reveals that 76% of whites with self-reported depression symptoms are officially diagnosed, compared to just 58.7% of blacks, 62.7% of Hispanics and 47.4% of Asians.
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Oral Bacteria May Contribute To The Development Of Obesity

The world-wide explosion of overweight people has been called an epidemic. The inflammatory nature of obesity is widely recognized. Could it really be an epidemic involving an infectious agent? In this climate of concern over the increasing prevalence of overweight conditions in our society, investigators have focused on the possible role of oral bacteria as a potential direct contributor to obesity. To investigate this possibility, the study"s researchers J.M. Goodson, D. Groppo, S. Halem and E. Carpino measured salivary bacterial populations of overweight women. Saliva was collected from 313 women with a body mass index between 27 and 32, and bacterial populations were measured by DNA probe analysis. Levels in this group were compared with data from a population of 232 healthy individuals from periodontal disease studies. The median percentage difference of seven of the 40 bacterial species measured was greater than 2 percent in the saliva of overweight women. Classification tree analysis of salivary microbiological composition revealed that 98.4 percent of the overweight women could be identified by the presence of a single bacterial species (Selenomonas noxia) at levels greater than 1.05 percent of the total salivary bacteria. Analysis of these data suggests that the composition of salivary bacteria changes in overweight women. It seems likely that these bacterial species could serve as biological indicators of a developing overweight condition. Of even greater interest, and the subject of future research, is the possibility that oral bacteria may participate in the pathology that leads to obesity. The complete research study is published in the June issue of the International and American Associations for Dental Research"s Journal of Dental Research. Ingrid Thomas International & American Association for Dental Research


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