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Leptin and the regulation of body weight in mammals.

机译:瘦素和哺乳动物体重的调节。

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摘要

The assimilation, storage and use of energy from nutrients constitute a homeostatic system that is essential for life. In vertebrates, the ability to store sufficient quantities of energy-dense triglyceride in adipose tissue allows survival during the frequent periods of food deprivation encountered during evolution. However, the presence of excess adipose tissue can be maladaptive. A complex physiological system has evolved to regulate fuel stores and energy balance at an optimum level. Leptin, a hormone secreted by adipose tissue, and its receptor are integral components of this system. Leptin also signals nutritional status to several other physiological systems and modulates their function. Here we review the role of leptin in the control of body weight and its relevance to the pathogenesis of obesity.
机译:来自营养素的能量的吸收,存储和使用构成了生命必不可少的体内平衡系统。在脊椎动物中,在脂肪组织中存储足够数量的能量密集型甘油三酸酯的能力使动物在进化过程中经常遇到的食物匮乏时期得以生存。但是,过量脂肪组织的存在可能会导致适应不良。复杂的生理系统已经发展到可以将燃料存储和能量平衡调节到最佳水平。瘦素(一种由脂肪组织分泌的激素)及其受体是该系统不可或缺的组成部分。瘦素还向其他几个生理系统发出营养状况信号,并调节其功能。在这里,我们审查瘦素在控制体重中的作用及其与肥胖症发病机制的相关性。

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