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Scientists locate, characterize key hormone involved in appetite control

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.