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Less Invasive CT-Scan Based Colorectal Cancer Screening Method Shows Good Accuracy
Computed tomographic (CT) colonography may offer patients at increased risk of colorectal cancer an alternative to colonoscopy that is less-invasive, is better-tolerated and has good diagnostic accuracy, according to a study in the June 17 issue of JAMA.

A Selection Of Editorials And Opinions
Scrubbing In: Good Health Care Doesn"t Come Cheap The Philadelphia Inquirer
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Stress Puts Double Whammy On Reproductive System, Fertility
University of California, Berkeley, researchers have found what they think is a critical and, until now, missing piece of the puzzle about how stress causes sexual dysfunction and infertility.
Nutrition

Ginseng -- Nature's Anti-Inflammatory?

Laboratory experiments have demonstrated the immunological effects of ginseng. Researchers writing in BioMed Central"s open access Journal of Translational Medicine have shown that the herb, much used in traditional Chinese and other Asian medicine, does have anti-inflammatory effects. Allan Lau led a team of researchers from the University of Hong Kong who identified seven ginseng constituents, ginsenosides, which showed immune-suppressive effects. He said, "The anti-inflammatory role of ginseng may be due to the combined effects of these ginsenosides, targeting different levels of immunological activity, and so contributing to the diverse actions of ginseng in humans". The scientists treated human immune cells with different extracts of ginseng. They found that of the nine ginsenosides they identified, seven could selectively inhibit expression of the inflammatory gene CXCL-10. Lau concludes, "Further studies will be needed to examine the potential beneficial effects of ginsenosides in the management of acute and chronic inflammatory diseases in humans". Uniquely, the researchers were able to holistically test the ginseng extract"s immune effects by using sophisticated purification technologies to identify individual constituents and define their bioactivity using genomics and bioactivity assays. After that, they reconstituted them back into a whole extract with definable individual ginsenosides for re-confirmation of effects. This potentially opens up a vigorous methodology to study medicinal herbs with state-of-the-art technologies. Bioactivity-guided identification and cell signaling technology to delineate the immunomodulatory effects of Panax ginseng on human promonocytic U937 cells Davy CW Lee, Cindy LH Yang, Stanley CC Chik, James CB Li, Jian-hui Rong, Godfrey CF Chan and Allan SY Lau Journal of Translational Medicine (in press) http://www.translational-medicine.com/ Graeme Baldwin BioMed Central


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