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围产阶段的GHSR信号参与了青春期的肝脏代谢
Marcos Divino Ferreira-Junior1,2,3, Keilah Valéria Naves Cavalcante1, Carlos Henrique Xavier4
1Laboratory of Endocrine Physiology and Metabolism, Department of Physiological Sciences, Federal University of Goias, Goiânia, Brazil.
The Journal of endocrinology
|July 24, 2024
概括
周产期接触LEAP2[1-14]会影响年轻动物的葡萄糖恒温和肝脏代谢,这表明潜在的长期代谢影响. 这项研究探讨了在发育过程中生长激素分泌受体 (GHSR) 信号传递.
科学领域:
- 内分泌学 在内分泌学.
- 神经科学是一个神经科学.
- 代谢研究研究 代谢研究
背景情况:
- 格林调节中枢神经系统的成熟和能量平衡,其产量在生命早期达到峰值.
- 已知肝脏表达的抗微生物2 (LEAP2) 抑制格林的代谢作用,特别是在葡萄糖平衡,胰岛素抵抗和脂质代谢方面.
- 作为内源性生长激素分泌受体 (GHSR) 逆agonist的LEAP2对产后发育的长期代谢影响尚不清楚.
研究的目的:
- 研究围产期GHSR信号在神经发育和能量代谢中的作用.
- 评估LEAP2[1-14]反向对抗对年幼动物GHSR信号传递的影响.
- 评估围产期GHSR调节对葡萄糖恒温和肝脏代谢的影响.
主要方法:
- 采用了两种实验模型:怀孕大鼠接受LEAP2[1-14]注射和使用LEAP2[1-14]或MK677.7进行GHSR的产后调制.
- 分析的重点是葡萄糖平衡,体重增加,食物摄入量和肝脏PEPCK表达.
- 这项研究研究了围产期GHSR调节的性别和相位依赖性影响.
主要成果:
- 经产期GHSR与LEAP2调节[1-14]以性别和阶段依赖的方式影响葡萄糖平衡.
- 没有观察到对体重增加或食物摄入的显著影响.
- 肝脏PEPCK表达受到LEAP2注射的显著影响,这表明肝脏新陈代谢的调节.
结论:
- 周产期接触LEAP2可以调节肝脏新陈代谢和全身葡萄糖平衡.
- 这些发现表明,早期的LEAP2暴露可能会启动在成年后表现出来的代谢变化.
- 需要进一步的研究,以充分阐明围产期GHSR信号调节的长期代谢后果.
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