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抗阻运动与有氧运动对肥胖小鼠肝脏脂肪分解因子的调节作用相当。

Resistance Exercise Regulates Hepatic Lipolytic Factors as Effective as Aerobic Exercise in Obese Mice.

机构信息

Department of Physical Education, Dong-A University, Busan 49315, Korea.

出版信息

Int J Environ Res Public Health. 2020 Nov 10;17(22):8307. doi: 10.3390/ijerph17228307.

Abstract

Non-alcoholic fatty liver disease (NAFLD) is associated with obesity. The effect of resistance exercise without dietary restriction on the regulation of hepatic lipolytic factors is unclear. This study aimed to analyze the effects of aerobic and resistance exercise on hepatic lipolytic factors of obese mice. High-fat diet (HFD)-induced obese mice were divided into HFD + sedentary (HF), HFD + aerobic exercise, and HFD + resistance exercise groups. Exercise group mice were subjected to treadmill or ladder climbing exercise for 8 weeks. Fat mass and liver triglycerides were significantly decreased in both aerobic and resistance training groups. In the results of protein levels related to hepatic steatosis, HFD significantly increased liver cannabinoid receptor 1 and sterol-regulatory element binding protein 1 (SREBP-1). Both aerobic and resistance training significantly ( < 0.05) increased liver carnitine palmitoyltransferase-1, phosphor-AMP-activated protein kinase (p-AMPK), and p-AMPK/AMPK and decreased liver SREBP-1. However, the type of exercise did not exert any significant effects on these protein levels. Thus, resistance exercise, similarly to aerobic exercise, effectively regulated hepatic lipolytic factors of obese mice. Therefore, a sustainable type of exercise selected based on the fitness level, disease type, musculoskeletal disorder status, and preference of the patients is the best exercise intervention for alleviating NAFLD.

摘要

非酒精性脂肪性肝病(NAFLD)与肥胖有关。在没有饮食限制的情况下,抗阻运动对肝脂解因子的调节作用尚不清楚。本研究旨在分析有氧和抗阻运动对肥胖小鼠肝脂解因子的影响。采用高脂肪饮食(HFD)诱导肥胖小鼠,将其分为 HFD+安静(HF)、HFD+有氧运动和 HFD+抗阻运动组。运动组小鼠进行 8 周的跑步机或爬梯运动。有氧和抗阻训练均可显著降低肥胖小鼠的体脂和肝甘油三酯。在与肝脂肪变性相关的蛋白水平结果中,HFD 显著增加了肝大麻素受体 1 和固醇调节元件结合蛋白 1(SREBP-1)。有氧和抗阻训练均显著(<0.05)增加了肝肉毒碱棕榈酰转移酶-1、磷酸化 AMP 激活蛋白激酶(p-AMPK)和 p-AMPK/AMPK,降低了肝 SREBP-1。然而,运动类型对这些蛋白水平没有产生任何显著影响。因此,抗阻运动与有氧运动一样,能有效调节肥胖小鼠的肝脂解因子。因此,根据患者的健康水平、疾病类型、肌肉骨骼紊乱状况和偏好选择可持续的运动类型,是缓解 NAFLD 的最佳运动干预措施。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d475/7696611/42c186c01885/ijerph-17-08307-g001.jpg

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