因“药”制宜:不同降糖药物对脂肪因子的影响

2016-12-28 赛诺菲医学部 菲糖新动

研究表明,脂肪因子参与许多免疫炎症反应,对胰岛素敏感性也有影响。印度生物化学家Rabia Farooq于2016年10月在Gynecological Endocrinology上发表了关于脂联素、瘦素和抵抗素三种脂肪因子(即ALR)的最新研究成果,评估了2型糖尿病(T2DM)患者的ALR水平,以及不同降糖药对ALR的影响。一项以医院为基础的研究共入组400例克什米尔族T2DM患者,并与300例血糖

研究表明,脂肪因子参与许多免疫炎症反应,对胰岛素敏感性也有影响。印度生物化学家Rabia Farooq于2016年10月在Gynecological Endocrinology上发表了关于脂联素、瘦素和抵抗素三种脂肪因子(即ALR)的最新研究成果,评估了2型糖尿病(T2DM)患者的ALR水平,以及不同降糖药对ALR的影响。




一项以医院为基础的研究共入组400例克什米尔族T2DM患者,并与300例血糖、甘油三酯、总胆固醇水平正常且体重指数(BMI)<25kg/m2的人进行对比。按药物治疗情况将新诊断T2DM患者分为二甲双胍组、格列美脲组,各50例;同时根据T2DM患病及肥胖(BMI>25kg/m2)情况分为肥胖伴T2DM组、肥胖不伴T2DM组和仅T2DM组,各50例。采用酶联免疫吸附法(ELISA)评估受试者药物治疗前后血清ALR水平。

T2DM患者基线ALR水平异常

与对照组相比,T2DM患者血清脂联素水平显著降低(22.5±7.9 vs. 12±5.5μg/mL, P<0.001),而瘦素和抵抗素水平显著升高,分别为7.36±3.73 vs. 14.3±7.4ng/mL,7.236±2.129 vs. 13.4±1.56pg/mL, P均<0.001。

药物治疗影响T2DM患者ALR水平

与治疗前相比,格列美脲组和二甲双胍组患者脂联素水平升高,瘦素和抵抗素水平下降,其中格列美脲组患者脂联素和抵抗素水平变化更为显著,而二甲双胍组患者瘦素水平变化最大。

药物治疗前后ALR水平变化情况


此外,研究发现,格列美脲组患者的空腹血糖(FBG)、糖化血红蛋白(HbA1c)较二甲双胍组降低更显著,而二甲双胍组患者BMI、胰岛素水平较格列美脲组降低更显著。

治疗12周后各组FBG、HbA1c等水平


肥胖程度影响患者ALR水平

肥胖不伴T2DM组患者脂联素水平较肥胖伴T2DM组和T2DM组更低,而瘦素、抵抗素水平较肥胖伴T2DM组和T2DM组更高。然而,与对照组相比,肥胖伴T2DM组和肥胖不伴T2DM组患者脂联素水平显著降低,瘦素及抵抗素水平显著升高。此外,T2DM组患者和对照组之间的ALR水平无显著相关性。

不同肥胖程度患者的ALR水平


这项以医院为基础的研究证实了,在克什米尔族人群中,T2DM参数与ALR水平之间存在相关性。研究显示,二甲双胍和格列美脲不仅能改善T2DM患者的血糖控制,同时也能改善患者的血脂,其中格列美脲对脂联素和抵抗素的影响更大,而瘦素则对二甲双胍更为敏感。

作者见解

本研究中,与T2DM患者相比,肥胖人群瘦素和抵抗素水平更高、脂联素水平更低,这一结果支持了其他研究的结论——肥胖较T2DM对脂肪因子水平的影响更大。因此,低水平脂联素及高水平瘦素、抵抗素可能主要是由肥胖导致的,而非糖尿病。可以预测的是,运动、饮食等能够对肥胖/BMI产生影响的因素,同样可以影响循环脂肪因子水平。而循环脂联素水平升高,循环瘦素、抵抗素水平降低是否能够降低T2DM风险,需更多研究来进一步探寻。

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    2017-01-20 zutt
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    2016-12-28 雾夜芭蕾

    不同药物对脂肪因子的作用

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