Attenuation of the Obesity Syndrome of ob/ob Mice by the Loss of Neuropeptide Y

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阅读量:

113

作者:

JC EricksonG HollopeterRD Palmiter

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摘要:

The obesity syndrome of ob/ob mice results from lack of leptin, a hormone released by fat cells that acts in the brain to suppress feeding and stimulate metabolism. Neuropeptide Y (NPY) is a neuromodulator implicated in the control of energy balance and is overproduced in the hypothalamus of ob/ob mice. To determine the role of NPY in the response to leptin deficiency, ob/ob mice deficient for NPY were generated. In the absence of NPY, ob/ob mice are less obese because of reduced food intake and increased energy expenditure, and are less severely affected by diabetes, sterility, and somatotropic defects. These results suggest that NPY is a central effector of leptin deficiency.

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DOI:

10.1126/science.274.5293.1704

被引量:

1991

年份:

1996

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1999
被引量:164

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