Prader–Willi综合症(简称PWS)是一种最常见的由遗传引起的肥胖症,其最显著的临床表征是病人无法控制的饥饿感和过度饮食。遗传学的研究以及最新的证据证实了Snord116是导致PWS的最关键的基因。本实验室前期构建了Snord116基因敲除小鼠,对该种小鼠进行了多方面的研究和测量。Snord116基因敲除小鼠一个丰常值得关注的表征是:该种小鼠饱食情况下Ghrelin的水平是正常小鼠的3倍,相当于正常小鼠饥饿24小时后的水平。Ghrelin作为目前唯一己知的“饥饿激素”,可以引起动物和人的进食行为。PWS病人无法抑制的饥饿感和过食行为与Ghrelin含量升高有无必然的联系目前还不清楚。为...Prader-Willi syndrom is the most common hereditary disease of obesity,and one of the most significant clinical manifestations is persistent hunger and hyperphagia (over eating). Genetic research and the latest evidences confirm that Snord116 is the most critical gene for PWS. In our previous work we generated the Snord116 knockout mice, which manifested the major abnormalities observed in PWS pati...学位:理学硕士院系专业:生命科学学院生物学系_微生物学学号:2172008115255