JAMA Psychiatry:心情不好吃得多——科学家发现抑郁与肥胖的基因相关性

2017-10-24 zhangfan MedSci原创

研究认为对于严重抑郁患者,其非典型抑郁症状与肥胖代谢途径存在基因相关性。有效的靶向免疫代谢调节可能对改善患者抑郁症状和肥胖均有效

严重抑郁(MDD)与肥胖可能源于共同的免疫代谢机制,特别是对于非典型MDD患者,其症状包括食欲和/或体重(A/W)增加。近日研究人员考察了A/W特征的MDD患者与肥胖的基因相关性。

该研究在14个精神病基因组学中心开展,收集了抑郁症状患者的基因组资料。研究的主要终点是严重抑郁与肥胖基因相关性。

研究招募了11837名MDD患者以及14791名对照志愿者。在MDD患者中,5347人(45.2%)属于食欲体重下降组,1871人(15.8%)属于食欲体重增加组,常见的遗传变异解释了约10%的亚群的遗传差异。A/W增加与体重指数(BMI)呈强阳性遗传相关(0.53 [0.15]; P=6.3×10-4),而A/W下降与BMI成负相关(-0.28 [0.14]; P=0.06)。此外A/W下降组,BMI增加 (OR, 1.18; 95% CI, 1.12-1.25)、CRP水平增加(OR, 1.08; 95% CI, 1.02-1.13)以及瘦素蛋白(OR, 1.09; 95% CI, 1.06-1.12)水平增加的多基因风险增加。

研究认为对于严重抑郁患者,其非典型抑郁症状与肥胖代谢途径存在基因相关性。有效的靶向免疫代谢调节可能对改善患者抑郁症状和肥胖均有效。

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