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PNAS:研究发现来自脂肪组织的脂联素可对抗多囊卵巢综合征

2017-08-11 佚名 来宝网

肥胖和胰岛素敏感性降低在多囊卵巢综合征PCOS中很常见。基于动物研究的新研究,并将在PNAS杂志上发表,揭示激素脂联素可以防止这些变化。

肥胖和胰岛素敏感性降低在多囊卵巢综合征PCOS中很常见。基于动物研究的新研究,并将在PNAS杂志上发表,揭示激素脂联素可以防止这些变化。

多囊卵巢综合征影响超过十分之一的育龄妇女。其特征是男性性激素睾酮水平高,排卵紊乱,可引起不孕。 PCOS通常与超重和对葡萄糖调节激素胰岛素的反应能力有关,即所谓的胰岛素抵抗。这反过来导致2型糖尿病的风险增加。

以哥德堡大学和卡罗林斯卡研究所为首的国际研究小组以前表明,具有PCOS的妇女脂肪组织衍生的激素脂联素水平较低。此外,在这些女性中,低脂联素水平,腰围增加,大脂肪细胞和胰岛素抵抗之间存在着密切联系。然而,低脂联素水平与PCOS代谢紊乱之间的因果关系尚未得到证实。

在这项新的研究中,研究人员研究了两种基因改造的雌性小鼠。在一组中,他们研究了具有升高的脂联素水平的小鼠,以及其他缺乏脂联素的小鼠。每组中的一半小鼠接受雄性性激素,其在正常小鼠中诱导PCOS症状。显示具有高水平脂联素的小鼠被保护以防止与PCOS相关的代谢紊乱,例如胰岛素抵抗和腹部肥胖。然而,脂联素不能防止排卵中断。

“结果表明,脂联素在脂肪组织功能中起重要作用,也可能在PCOS妇女中发挥肥胖和胰岛素抵抗的作用。因此,与脂联素相似的药物可能是影响PCOS妇女代谢紊乱的有效治疗方法 ”。

原始出处:
Benrick A, Chanclón B, Micallef P,et al.Adiponectin protects against development of metabolic disturbances in a PCOS mouse model.Proc Natl Acad Sci U S A. 2017 Aug 8. pii: 201708854. doi: 10.1073/pnas.1708854114. [Epub ahead of print]

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    2017-09-16 drwjr
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图片摘自:barbrothers.org 2017年4月10日 讯 /生物谷BIOON/ --热衷于锻炼的人通常都想知道在锻炼之前吃东西好还是不吃东西好;日前,一项刊登于国际杂志the American Journal of Physiology—Endocrinology and Metabolism上的研究报告中,来自英国巴斯大学的研究人员通过研究首次阐明进食和禁食对脂肪组织中基因表

Arthritis Rheumatol:骨关节炎滑膜周和髌下脂肪组织的区域差异及其对II级和III级肥胖的反应

这些差异表明,IPFP和滑膜可能含有2种不同的白色脂肪组织库,并支持II或III级肥胖患者炎症诱发OA的理论。

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