• 中国科学论文统计源期刊
  • 中国科技核心期刊
  • 美国化学文摘(CA)来源期刊
  • 日本科学技术振兴机构数据库(JST)

临床输血与检验 ›› 2018, Vol. 20 ›› Issue (4): 419-424.DOI: 10.3969/j.issn.1671-2587.2018.04.025

• 临床检验 • 上一篇    下一篇

AMPK磷酸化及介导的脂联素抵抗对心脏瓣膜病心功能不全的作用

杨广龙,周会霞,杨波   

  1. 431700 湖北省天门市第一人民医院心内科
  • 收稿日期:2018-02-20 出版日期:2018-08-20 发布日期:2018-08-14
  • 通讯作者: 周会霞,主管护师,主要从事心力衰竭的临床及护理研究,(Tel)13907222123(E-mail)1634700218@qq.com。
  • 作者简介:杨广龙(1974–),男,湖北天门人,副主任医师,硕士,主要从事心力衰竭的临床研究,(Tel)18907222772(E-mail)yangguanglong1974@163.com。

An Observation of Phosphorylated AMPK-mediated Adiponectin Resistance on Valvular Heart Disease Complicated with Cardiac Insufficiency

YANG Guang-long,ZHOU Hui-xia,YANG Bo.   

  1. Department of Cardiology,the First People's Hospital of Tianmen and Department of Cardiology,the People's Hospital of Wuhan University,Wuhan,Hubei,430060
  • Received:2018-02-20 Online:2018-08-20 Published:2018-08-14

摘要: 目的 探讨AMPK磷酸化及介导的脂联素抵抗对心脏瓣膜病心功能不全的作用。方法 选择2009年8月~2015年8月我院收治的47例心脏瓣膜病患者作为心脏瓣膜病组,33例心脏外伤手术患者作为对照组,同期在医院体检的健康人群50例作为正常组,抽取肘静脉血3 mL,酶联免疫吸附试验检测血清脂联素(APN)、肿瘤坏死因子-α(TNF-α)、脑钠肽(BNP)水平;心脏瓣膜病组、对照组术中取少量心肌组织样本,实时定量PCR检测心肌组织APN mRNA表达,蛋白质印迹法检测心肌组织APN蛋白、AMPK蛋白、磷酸化AMPK(pAMPK)蛋白表达。结果 心脏瓣膜病组血清APN、TNF-α、BNP均显著高于对照组和正常组(P<0.05),对照组血清APN、TNF-α、BNP显著高于正常组(P<0.05)。病理学观察显示对照组心肌组织纤维排列有序整齐,心脏瓣膜病组心肌纤维走向杂乱无章,心肌细胞出现空泡变性。心脏瓣膜病组心肌组织APN mRNA及蛋白表达显著高于对照组,两组间比较差异具有统计学意义(P<0.05)。心脏瓣膜病组pAMPK蛋白表达显著低于对照组(P<0.05),两组间AMPK蛋白表达比较差异无统计学意义(P>0.05)。结论 心脏瓣膜病合并心功能不全患者血清APN、TNF-α、BNP显著升高,但患者AMPK磷酸化程度受到抑制,心肌组织出现APN抵抗现象,导致APN无法发挥正常的心肌保护作用。

关键词: AMPK磷酸化, 脂联素抵抗, 心脏瓣膜病, 心功能不全, 心肌保护

Abstract: Objective To explore the effectof phosphorylated AMPK and adiponectinresistance on valvular heart disease(VHD) complicated with cardiac insufficiency. Methods A total of 47 VHD inpatients were selected as VHD group,33 cases of cardiac trauma as experimental control,and 50 healthy personsas normal group. ELISA was used to detect the serum adiponectin(APN),tumor necrosis factor-α (TNF-α) and brain natriuretic peptide(BNP). A small amount of myocardial tissue specimenswas collected bybiopsy in the patients and control group,respectively. APN mRNA expression in cardiac tissue was detected by real time quantitative PCRand APN,AMPK and phosphorylated AMPK (pAMPK) expressions in cardiac muscle tissuesweredetected by Western blotting. Results The serum levels of APN,TNF-α,BNP in VHD group were significantly higher than those in the control and normal group (P<0.05); serum APN,TNF-α,BNP in control group were obviouslyhigher than thosein normal group (P<0.05). The myocardial fibers in the tissues of VHDgroup were found to beirregular,with a high expression of APN mRNA and protein (P<0.05).The expression of pAMPK in VHD group was notablylower than that in the control (P<0.05). No significant difference of AMPK expressionbetween the VHDpatients and the control (P>0.05). Conclusion Patients with VHD combined with cardiac insufficiencyshowed increasedserumAPN,TNF-α and BNP but decreasedphosphorylated AMPK,and the APN resistance of myocardial tissuesmay occur,leading to the failure of APN-mediated myocardial protection.

Key words: pAMPK Adiponectin resistance , Valvulopathy, Cardiac insufficiency, Myocardial protection

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