Hydrogen Attenuates Myocardial Injury in Rats by Regulating Oxidative Stress and NLRP3 Inflammasome Mediated Pyroptosis

Chaoqun Nie, Hongxiao Yang, Huijun Du, Shuang Liu, Wei Yang, Yajing Lv, Yunan Gao, Zi Hong

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DOI: 10.7150/ijms.61329 DOI is the universal ID for this study.

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Purpose: Hydrogen (H2) is an antioxidant with anti-inflammatory and apoptosis functions.This study aimed to estimate the effects of H2 on acute myocardial infarction (AMI) in rats and its association with the inhibition of oxidative stress and cardiomyocyte pyroptosis.

Methods: Sixty-four rats were randomly divided into three groups (Sham, AMI, and H2). The left anterior descending coronary artery (LAD) of rats in the AMI and H2 groups was ligated, while rats in the Sham group were threaded without ligation. In addition, 2% H2 was administered by inhalation for 24 h after ligation in the H2 group. Transthoracic echocardiography was performed after H2 inhalation, followed by collection of the serum and cardiac tissue of all rats.

Results: H2 inhalation ameliorated the cardiac dysfunction, infarct size and inflammatory cell infiltration caused by AMI. Meanwhile, H2 inhalation reduced the concentration of serum Troponin I (TnI), brain natriuretic peptide (BNP), reactive oxygen species (ROS), cardiac malondialdehyde (MDA), and 8-OHdG. In addition, H2 inhalation inhibited cardiac inflammation and pyroptosis relative proteins expression.

Conclusion: H2 effectively promoted heart functions in AMI rats by regulating oxidative stress and pyroptosis.

Publish Year 2021
Country China
Rank Positive
Journal International Journal of Molecular Sciences
Primary Topic Heart
Secondary TopicHeart Attack
Model Rat
Tertiary TopicIschemia-Reperfusion Injury
Vehicle Gas
pH N/A
Application Inhalation