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Popular Articles

Biological Markers Identified That May Indicate Poor Breast Cancer Prognosis
A team of researchers has found an association between breast cancer survival and two proteins that, when present in the blood in high levels, are indicators of inflammation. Using data from the Health, Eating, Activity and Lifestyle (HEAL) study sponsored by the National Cancer Institute, part of the National Institutes of Health, the researchers found that breast cancer patients with elevated levels of C-reactive protein (CRP) and serum amyloid A (SAA) were approximately two to three times more likely to die sooner or have their cancer return than those patients who had lower levels of these proteins, regardless of the patient"s age, tumor stage, race, body mass index, or history of previous cardiovascular issues. The results of this study were published online, May 26, 2009, in the Journal of Clinical Oncology.

Agave Nectar Does Not Comply With FDA Labeling Laws
Agave nectar is an alternative sweetener used in health food bars
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Patient Satisfaction At Discharge From Hospital Improved By Hospital Software
When hospitalists use discharge communication software, patients and the outpatient doctors who carry out the care have better perceptions of the quality of the discharge process, according to new research published in the August issue of the Journal of Hospital Medicine.
Medical Devices

Sleep And Weight Gain: A Molecular Link

There appears to be a link between sleep and weight control, with some studies indicating that sleep disruption can increase weight gain and others that diet affects sleep. Victor Uebele and colleagues, at Merck Research Laboratories, West Point, have now provided further evidence to support this association by showing that T-type calcium channels regulate body weight maintenance and sleep in mice. These data suggest that sleep and circadian treatment approaches may be of benefit in the fight against obesity. Previous studies have shown that mice lacking the CaV3.1 T-type calcium channel have disrupted sleep/wake activity. In this study, the researchers found that these mice were resistant to weight gain when fed a high-fat diet. Consistent with these data, when normal-weight rodents were administered a drug that specifically antagonized T-type calcium channels during their inactive phase they showed increased sleep and were protected from weight gain due to a high-fat diet. Further, when the same drug was given to obese rodents it reduced body weight and fat mass. The authors conclude that the benefits of the drug are likely to be a result of better alignment of feeding patterns and the circadian rhythm, and that targeting T-type calcium channels might provide a new avenue of research for those developing drugs to treat obesity. TITLE: Antagonism of T-type calcium channels inhibits high-fat diet-induced weight gain in mice AUTHOR CONTACT: Victor N. Uebele Merck Research Laboratories, West Point, Pennsylvania, USA. View the PDF of this article at: https://www.the-jci.org/article.php?id=36954 Karen Honey Journal of Clinical Investigation


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