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Yang G, Zhang Q, Dong C, Hou G, Li J, Jiang X, Xin Y. Nrf2 prevents diabetic cardiomyopathy via antioxidant effect and normalization of glucose and lipid metabolism in the heart. J Cell Physiol 2024; 239:e31149. [PMID: 38308838 DOI: 10.1002/jcp.31149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/11/2023] [Accepted: 10/25/2023] [Indexed: 02/05/2024]
Abstract
Metabolic disorders and oxidative stress are the main causes of diabetic cardiomyopathy. Activation of nuclear factor erythroid 2-related factor 2 (Nrf2) exerts a powerful antioxidant effect and prevents the progression of diabetic cardiomyopathy. However, the mechanism of its cardiac protection and direct action on cardiomyocytes are not well understood. Here, we investigated in a cardiomyocyte-restricted Nrf2 transgenic mice (Nrf2-TG) the direct effect of Nrf2 on cardiomyocytes in DCM and its mechanism. In this study, cardiomyocyte-restricted Nrf2 transgenic mice (Nrf2-TG) were used to directly observe whether cardiomyocyte-specific overexpression of Nrf2 can prevent diabetic cardiomyopathy and correct glucose and lipid metabolism disorders in the heart. Compared to wild-type mice, Nrf2-TG mice showed resistance to diabetic cardiomyopathy in a streptozotocin-induced type 1 diabetes mouse model. This was primarily manifested as improved echocardiography results as well as reduced myocardial fibrosis, cardiac inflammation, and oxidative stress. These results showed that Nrf2 can directly act on cardiomyocytes to exert a cardioprotective role. Mechanistically, the cardioprotective effects of Nrf2 depend on its antioxidation activity, partially through improving glucose and lipid metabolism by directly targeting lipid metabolic pathway of AMPK/Sirt1/PGC-1α activation via upstream genes of sestrin2 and LKB1, and indirectly enabling AKT/GSK-3β/HK-Ⅱ activity via AMPK mediated p70S6K inhibition.
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Affiliation(s)
- Ge Yang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Qihe Zhang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Chao Dong
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Guowen Hou
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Jinjie Li
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Xin Jiang
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, and Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun, Jilin, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Ying Xin
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
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Huang Y, He B, Song C, Long X, He J, Huang Y, Liu L. Oxymatrine ameliorates myocardial injury by inhibiting oxidative stress and apoptosis via the Nrf2/HO-1 and JAK/STAT pathways in type 2 diabetic rats. BMC Complement Med Ther 2023; 23:2. [PMID: 36597092 PMCID: PMC9808977 DOI: 10.1186/s12906-022-03818-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 12/06/2022] [Indexed: 01/04/2023] Open
Abstract
The necessity of increasing the efficiency of organ preservation has encouraged researchers to explore the mechanisms underlying diabetes-related myocardial injuries. This study intended to evaluate the protective effects of oxymatrine (OMT) in myocardial injury caused by type 2 diabetes mellitus. A model of diabetic rats was established to simulate type 2 diabetes mellitus using an intraperitoneal injection of a single dose of 65 mg/kg streptozotocin with a high-fat and high-cholesterol diet, and diabetic rats were subsequently treated with OMT (60, 120 mg/kg) by gavage for 8 weeks. Thereafter, diabetic rats demonstrated notable decreases in left ventricular systolic pressure (LVSP), ±dp/dtmax, and in the activities of glutathione peroxidase, superoxide dismutase, and catalase. Moreover, we found notable increases in left ventricular end-diastolic pressure, fasting blood glucose, and malondialdehyde, as well as changes in cell apoptosis and decreased expression levels of Nrf2, HO-1, tyrosine protein kinase JAK (JAK), and signal transducer and transcription activator (STAT). Treatment with OMT alleviated all of the measured parameters. Collectively, these findings suggest that activation of the Nrf2/HO-1 and inhibition of the JAK/STAT signaling are involved in mediating the cardioprotective effects of OMT and also highlight the benefits of OMT in ameliorating myocardial injury in diabetic rats.
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Affiliation(s)
- Yongpan Huang
- Medicine School, Changsha Social Work College, Changsha, 410004 Hunan China
| | - Bin He
- grid.67293.39School of Nursing, Hunan University of Medicine, Huaihua, 418000 China
| | - Chong Song
- Medicine School, Changsha Social Work College, Changsha, 410004 Hunan China
| | - Xian Long
- Medicine School, Changsha Social Work College, Changsha, 410004 Hunan China
| | - Jianbin He
- Department of Respiratory and Critical Care Medicine, The First People’s Hospital of Huaihua, affiliated to University of South China, Huaihua, 418000 Hunan China
| | - Yansong Huang
- Medicine School, Changsha Social Work College, Changsha, 410004 Hunan China
| | - Lijing Liu
- Medicine School, Changsha Social Work College, Changsha, 410004 Hunan China
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Asai T, Yoshikawa S, Ikeda Y, Taniguchi K, Sawamura H, Tsuji A, Matsuda S. Encouraging Tactics with Genetically Modified Probiotics to Improve Immunity for the Prevention of Immune-Related Diseases including Cardio-Metabolic Disorders. Biomolecules 2022; 13:biom13010010. [PMID: 36671395 PMCID: PMC9855998 DOI: 10.3390/biom13010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
The PI3K/AKT/mTOR signaling pathway may play crucial roles in the pathogenesis of obesity and diabetes mellitus, as well as metabolic syndromes, which could also be risk factors for cardio-metabolic disorders. Consistently, it has been shown that beneficial effects may be convoyed by the modulation of the PI3K/AKT/mTOR pathway against the development of these diseases. Importantly, the PI3K/AKT/mTOR signaling pathway can be modulated by probiotics. Probiotics have a variety of beneficial properties, with the potential of treating specific diseases such as immune-related diseases, which are valuable to human health. In addition, an increasing body of work in the literature emphasized the contribution of genetically modified probiotics. There now seems to be a turning point in the research of probiotics. A better understanding of the interactions between microbiota, lifestyle, and host factors such as genetics and/or epigenetics might lead to a novel therapeutic approach with probiotics for these diseases. This study might provide a theoretical reference for the development of genetically modified probiotics in health products and/or in functional foods for the treatment of cardio-metabolic disorders.
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Ranjana, Binwal M, Verma AK, Bawankule DU, Tiwari N, Shanker K. Stimulation of glucose uptake by glycosides from Alectra parasitica subsp. chitrakutensis (M.A. Rau) K.K. Khanna & An. Kumar: An in-vitro study of TNF-α induced insulin resistance in L6 myoblasts. Nat Prod Res 2022; 37:2024-2030. [PMID: 35983769 DOI: 10.1080/14786419.2022.2112957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Alectra parasitica subsp. chitrakutensis (M.A. Rau) K.K. Khanna & An. Kumar (Orobanchaceae) is a parasitic plant indigenous to India. Locally, the plant is known as 'Midaki and Nirgundikand'. It is used to treat fever, piles, cardiovascular disorders, and blood-borne non-infectious diseases by ethnic communities. The phytochemical investigation of A. parasitica subsp. chitrakutensis rhizome led to the isolation of azafrin (1), rehmaionoside-C (2), and mussaenoside (3). Compounds (2) and (3) are being reported for the first time from this plant. Compounds were evaluated for their intercellular glucose uptake activity in basal and insulin-TNF-α-stimulated L6 muscle cells. In particular, rehmaionoside C exhibited activity comparative to metformin, increasing uptake by basal- and insulin-TNF-α-stimulated cells by 4.88- and 3.90-fold and 5.04- and 4.04-fold. While azafrin and mussaenoside have produced 3.03- and 2.36-fold; 4.03- and 3.22-fold increase in intercellular glucose uptake. Compounds did not show toxicities in rat L6 myoblast cells. The study suggests that rehmaionoside-C from A. parasitica subsp. chitrakutensis might activate glucose uptake by insulin mimics and could be a nontoxic anti-diabetes lead for drug discovery.
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Affiliation(s)
- Ranjana
- Analytical Chemistry Department, Phytochemistry Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | - Monika Binwal
- Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | | | - Dnyaneshwar U Bawankule
- Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | - Neerja Tiwari
- Analytical Chemistry Department, Phytochemistry Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
| | - Karuna Shanker
- Analytical Chemistry Department, Phytochemistry Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
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