Taking a combination of the hormones estrogen and progestin does not improve the quality of life for women who are free of menopause-related symptoms, but does expose them to a slightly higher risk of heart attacks, strokes and breast cancer, a new multi-center national study concludes. For that reason, medical scientists now recommend against the combined therapy in the absence of such symptoms.
Researchers have identified a key hormone involved in appetite control and demonstrated its effect on the brain. Scientists have shown that the hormone, called ghrelin, activates specialized neurons in the hypothalamus involved in weight regulation. Researchers believe this information could be used to develop drugs aimed at stimulating appetite in patients who have undergone extreme weight loss due to illness, a condition known as cachexia. Conversely, drugs aimed at limiting production of the hormone might be developed to reduce appetite for those battling severe obesity.