Transgenic Mice Overexpressing Leptin Accumulate Adipose Mass at an Older, But Not Younger, Age
نویسندگان
چکیده
منابع مشابه
Transgenic Mice Overexpressing Leptin Accumulate Adipose Mass at an Older, But Not Younger, Age*
Sensitivity to leptin is associated with a normal regulation of the adipose mass, whereas decreased leptin sensitivity results in elevated adipose tissue stores. To address whether the effects of chronic hyperleptinemia are sustained with age, we generated transgenic mice that overexpress leptin under the control of the fat specific aP2 promoter/enhancer. At 6–9 weeks of age, transgenic mice ov...
متن کاملTransgenic Mice Overexpressing Leptin Accumulate Adipose Mass at an Older, But Not Younger, Age* * This work was funded by NIH Grant HD-35142.
Sensitivity to leptin is associated with a normal regulation of the adipose mass, whereas decreased leptin sensitivity results in elevated adipose tissue stores. To address whether the effects of chronic hyperleptinemia are sustained with age, we generated transgenic mice that overexpress leptin under the control of the fat specific aP2 promoter/enhancer. At 6-9 weeks of age, transgenic mice ov...
متن کاملDecreased triglyceride-rich lipoproteins in transgenic skinny mice overexpressing leptin.
Leptin is an adipocyte-derived circulating satiety factor with a variety of biological effects. Evidence has accumulated suggesting that leptin may modulate glucose and lipid metabolism. In the present study, we examined lipid metabolism in transgenic skinny mice with elevated plasma leptin concentrations. The plasma concentrations of triglycerides and free fatty acids in transgenic skinny mice...
متن کاملHyperleptinemia precipitates diet-induced obesity in transgenic mice overexpressing leptin.
Transgenic mice overexpressing leptin backcrossed to the C57BL/6J genetic background (LepTg) have a lean phenotype, characterized by a 95% reduction in adipose mass; reduced plasma levels of glucose, triglycerides, insulin, and IGF-1; and a 75% decrease in adipocyte size. High-fat diet treatment for 20 wk revealed that, compared with normal mice, the LepTg mice had an increased susceptibility t...
متن کاملGalanin overexpressing transgenic mice.
Galanin overexpressing transgenic mice (GAL-tg) were generated on two different promoters. Both lines of GAL-tg displayed high levels of galanin in the hippocampus and reduced sensitivity to seizures, as compared to their respective wildtype littermate controls (WT). Performance deficits on learning and memory tasks, impaired long-term potentiation, reduced hippocampal excitability, lower evoke...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Endocrinology
سال: 2001
ISSN: 0013-7227
DOI: 10.1210/en.142.1.348