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- Title
Qiliqiangxin Rescues Mouse Cardiac Function by Regulating AGTR1/TRPV1-Mediated Autophagy in STZ-Induced Diabetes Mellitus.
- Authors
Tong, Jing; Lai, Yan; Yao, Yi-An; Wang, Xue-Jun; Shi, Yu-Shuang; Hou, Han-Jin; Gu, Jian-Yun; Chen, Fei; Liu, Xue-Bo
- Abstract
<bold>Background/Aims</bold>: To explore the potential role of qiliqiangxin (QLQX) A traditional Chinese medicine and the involvement of angiotensin II receptor type 1 (AGTR1) and transient receptor potential vanilloid 1 (TRPV1) in diabetic mouse cardiac function. <bold>Methods</bold>: Intragastric QLQX was administered for 5 weeks after streptozotocin (STZ) treatment. Additionally, Intraperitoneal injections of angiotensin II (Ang II) or intragastric losartan (Los) were administered to assess the activities of AGTR1 and TRPV1. Two-dimensional echocardiography and tissue histopathology were used to assess cardiac function Western blot was used to detect the autophagic biomarkers Such as light chain 3 P62 and lysosomal-associated membrane protein 2 And transmission electron microscopy was used to count the number of autophagosomes. <bold>Results</bold>: Decreased expression of TRPV1 and autophagic hallmarks and reduced numbers of autophagolysosomes as well as increased expression of angiotensin converting enzyme 1 and AGTR1 were observed in diabetic hearts. Blocking AGTR1 with Los mimicked the QLQX-mediated improvements in cardiac function Alleviated myocardial fibrosis and enabled autophagy Whereas Ang II abolished the beneficial effects of QLQX in wild type diabetic mice but not in TRPV1-/- diabetic mice. <bold>Conclusions</bold>: QLQX may improve diabetic cardiac function by regulating AGTR1/ TRPV1-mediated autophagy in STZ-induced diabetic mice.
- Subjects
CHINESE medicine; AUTOPHAGY; DIABETES; STREPTOZOTOCIN; ANGIOTENSIN II; THERAPEUTICS
- Publication
Cellular Physiology & Biochemistry (Karger AG), 2018, Vol 47, Issue 4, p1365
- ISSN
1015-8987
- Publication type
Article
- DOI
10.1159/000490822