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断奶前肾上腺切除术以及短期或长期给予糖皮质激素对遗传性肥胖 Zucker 大鼠的影响。

Effects of adrenalectomy before weaning and short- or long-term glucocorticoid administration on the genetically obese Zucker rat.

作者信息

Fletcher J M

出版信息

Biochem J. 1986 Sep 1;238(2):459-63. doi: 10.1042/bj2380459.

Abstract

Intact obese rats were hyperinsulinaemic, had higher rates of whole-body fatty acid synthesis, higher activities of hepatic acetyl-CoA carboxylase and tyrosine aminotransferase and a higher hepatic glycogen concentration than intact lean animals. Adrenalectomy abolished all these factors of the obese phenotype. Treatment of adrenalectomized rats with corticosterone for 24 h increased the rate of whole-body fatty acid synthesis to the same extent in both phenotypes, but caused a larger increase in glycogen concentration, tyrosine aminotransferase activity and plasma insulin concentration in obese rats.

摘要

完整的肥胖大鼠存在高胰岛素血症,其全身脂肪酸合成速率更高,肝脏乙酰辅酶A羧化酶和酪氨酸转氨酶活性更高,肝脏糖原浓度也高于完整的瘦动物。肾上腺切除术消除了肥胖表型的所有这些因素。用皮质酮对肾上腺切除的大鼠进行24小时治疗,两种表型的全身脂肪酸合成速率均增加到相同程度,但肥胖大鼠的糖原浓度、酪氨酸转氨酶活性和血浆胰岛素浓度升高幅度更大。

相似文献

2
Effects of adrenalectomy before weaning in the genetically obese Zucker rat (fa/fa).
Br J Nutr. 1986 Jul;56(1):141-51. doi: 10.1079/bjn19860094.

本文引用的文献

6
Radioimmunoassay (RIA) of serum corticosterone in rats.大鼠血清皮质酮的放射免疫分析
Proc Soc Exp Biol Med. 1982 May;170(1):29-34. doi: 10.3181/00379727-170-41391.
10

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