Taohuajing reduces oxidative stress and inflammation in diabetic cardiomyopathy through the sirtuin 1/nucleotide-binding oligomerization domain-like receptor protein 3 pathway

BMC Complementary Medicine and Therapies

Lu Xu¹  Yu Cao¹  Siwang Wang¹  Feng Li²  Changming Wang²  Xuan Zhang²  Rui Yao³  Yuqing Deng⁴ 

[1] Department of Chinese Materia Medica and Natural Medicines, School of Pharmacy, the Air Force Medical University, 169 Changle West Road, 710032, Xi’an, Shanxi, China;Department of Traditional Chinese Medicine, the First Affiliated Hospital, the Air Force Medical University, 127 Changle West Road, 710032, Xi’an, Shanxi, China;Department of Traditional Chinese Medicine, the First Affiliated Hospital, the Air Force Medical University, 127 Changle West Road, 710032, Xi’an, Shanxi, China;Department of Chinese Materia Medica and Natural Medicines, School of Pharmacy, the Air Force Medical University, 169 Changle West Road, 710032, Xi’an, Shanxi, China;Xi’an Hemoqi Medical Technology Co. Ltd., 710075, Xi’an, Shaanxi, China;

关键词: Taohuajing;    Oxidative stress;    Inflammation;    Diabetic cardiomyopathy;    Sirtuin 1;    NLRP3;   

DOI  :  10.1186/s12906-021-03218-0

来源: Springer

【 摘 要 】

BackgroundOxidative stress and inflammation promote the development of diabetic cardiomyopathy (DCM). Therefore, inhibiting these processes may show beneficial effects in the treatment of patients with DCM. Taohuajing (THJ) is prepared using Persicae semen (Taoren), Polygonatum sibiricum (Huangjing), and Carthami flos (Honghua) and may have applications in the treatment of DCM. However, the protective effects of THJ have not been thoroughly assessed. Accordingly, in this study, we aimed to investigate the protective effects of THJ in a model of DCM and further clarify the potential mechanisms.MethodsA type 2 diabetes mellitus model was generated using male C57BL/6 mice. Echocardiography and histopathology were used to evaluate cardiac function. The expression levels of cytokines were measured using enzyme-linked immunosorbent assays. Western blotting and small interfering RNA were used to evaluate the targets of THJ.ResultsCompared with the control group, DCM mice showed cardiac dysfunction, metabolic disorder, fibrosis, and disorganized ultrastructure, and THJ treatment significantly inhibited these changes significantly. THJ treatment also inhibited the production of reactive oxygen species (ROS) and malondialdehyde (MDA), induced the production of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD), decreased the levels of pro-inflammatory cytokines, and suppressed the activation of the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome. These protective effects were abolished by sirtinol, an inhibitor of sirtuin1 (SIRT1).ConclusionsOverall, THJ protected the heart from hyperglycemia-induced oxidative stress and inflammation in DCM mice via a mechanism involving SIRT1-mediated antioxidant proteins and suppression of the NLRP3 inflammasome.

【 授权许可】

CC BY