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JCEM:生长激素替代治疗可改善腹型肥胖男性身体组成

2013-07-09 desperado-c dxy

内脏肥胖与心脏代谢风险增加和生长激素(GH)分泌减少有关。为了确定在腹型肥胖的青年男性,GH治疗对身体组成的影响,包括肝脏脂肪、线粒体功能、以及心血管风险标志物。来自美国麻省总医院的Miriam A Bredella教授及其团队进行了一项研究,该研究发现GH替代治疗可以改善腹型肥胖男性的身体组成。该研究结果在线发表在2013年7月3日的《临床内分泌代谢杂志》(The journal of clin

内脏肥胖与心脏代谢风险增加和生长激素(GH)分泌减少有关。为了确定在腹型肥胖的青年男性,GH治疗对身体组成的影响,包括肝脏脂肪、线粒体功能、以及心血管风险标志物。来自美国麻省总医院的Miriam A Bredella教授及其团队进行了一项研究,该研究发现GH替代治疗可以改善腹型肥胖男性的身体组成。该研究结果在线发表在2013年7月3日的《临床内分泌代谢杂志》(The journal of clinical endocrinology & metabolism)上。

该研究为6个月的随机、双盲、安慰剂对照试验。由62例21-45岁的腹型肥胖男性参与(IGF-1低于平均水平,而不是根据生长激素水平进行排除)。主要评价指标:腹部脂肪组织,大腿肌肉和脂肪(CT),体脂含量和瘦体重(DXA),肌细胞内(IMCL)和肝内(IHL)脂质(1H-MRS)、线粒体功能(31P-MRS)、心血管危险标志物、颈动脉内膜中层厚度(IMT)、内皮功能。

该研究结果表明,在GH组,GH治疗导致平均IGF-1 SDS从-1.9±0.08增加至-0.2±0.3,并且在控制两组间体重的增加后,与安慰剂组相比,GH组VAT、VAT/SAT、躯干/末端脂肪、IHL、hsCRP和ApoB/LDL减少。IGF-1水平的改变与VAT、VAT/SAT、躯干脂肪、躯干/末端脂肪、hsCRP和ApoB改变之间呈负相关。在控制血糖的变化后,与安慰剂组相比,GH组线粒体功能改善。大腿脂肪、肌肉含量、IMCL、胆固醇、纤维蛋白原、IMT和内皮功能没有变化。尽管2小时OGTT血糖轻微增加,但与安慰剂组相比,GH组空腹血糖和HbA1c没有增加。

该研究发现,GH替代治疗可以改善腹型肥胖男性的身体组成,包括肝脏脂肪、线粒体功能和心血管危险标志物。尽管空腹血糖没有变化,但在OGTT期间注意到2小时血糖轻微增加。


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    2014-01-25 smallant2015
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    2013-09-04 achengzhao
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    2013-07-11 nymo
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