ArticleArquivos brasileiros de cardiologia2021
Inhibiting Glucose Metabolism By miR-34a and miR-125b Protects Against Hyperglycemia-Induced Cardiomyocyte Cell Death.
Article in Arquivos brasileiros de cardiologia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.
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Who cites it
11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.
- From Type 2 Diabetes Mellitus To Diabetic Cardiomyopathy - A Systematic Review On The Role Of MicroRNA.Current diabetes reports · 2025Pooled it
- The expression profiles and roles of microRNAs in cardiac glucose metabolism.Frontiers in endocrinology · 2025Pooled it
- Chronic hyperglycemia and cardiovascular dysfunction: an in-depth exploration of metabolic and cellular pathways in type 2 diabetes mellitus.Cardiovascular diabetology. Endocrinology reports · 2025Review
- Lactylation of Mitochondrial Adenosine Triphosphate Synthase Subunit Alpha Regulates Vascular Remodeling and Progression of Aortic Dissection.Research (Washington, D.C.) · 2025Article
- MiR-34a-HK1 signal axis retards bone marrow mesenchymal stem cell senescence via ameliorating glycolytic metabolism.Stem cell research & therapy · 2024Article
- Roles of non-coding RNA in diabetic cardiomyopathy.Cardiovascular diabetology · 2024Review
- Glucose fluctuation promotes mitochondrial dysfunctions in the cardiomyocyte cell line HL-1.PloS one · 2023Article
- Cardiac Metabolism and MiRNA Interference.International journal of molecular sciences · 2022Review
- Exosomal microRNAs miR-30d-5p and miR-126a-5p Are Associated with Heart Failure with Preserved Ejection Fraction in STZ-Induced Type 1 Diabetic Rats.International journal of molecular sciences · 2022Article
- The Year in Basic Research 2021: the Search for Translational Models.Arquivos brasileiros de cardiologia · 2022Article
- MiR-125 Family in Cardiovascular and Cerebrovascular Diseases.Frontiers in cell and developmental biology · 2021Review
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2 authors at 1 institution in 1 country.
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Abstract
backgroundIt is well-known that insulin resistance and hyperglycemia are important pathological causes for the development of diabetic cardiomyopathy (DCM). However, its precise molecular mechanisms in the pathogenesis of DCM remain unclear.
objectivesRecent studies reveal that microRNAs (miRNA) play essential roles in the pathogenesis of DCM. This project aimed to determine the roles of miR-34a and miR-125b in hyperglycemia-induced cardiomyocyte cell death.
methodsRat primary cardiomyocytes were isolated and exposed to normal and high concentrations of glucose. Cell viability was measured using MTT assay. Expressions of miR-34a and miR-125b were detected by qRT-PCR. Potential targets of miR-34a and miR-125b were predicted from www.Targetscan.org and validated from human heart tissues. A statistical significance of p<0.05 was considered.
resultsThe present study shows that miR-34a and miR-125b are downregulated in a human diabetic heart. Moreover, in vitro data from rat primary cardiomyocytes showed that short-term high glucose treatment stimulates miR-34a and miR-125b expressions. Under high glucose, it was found that rat cardiomyocytes displayed increased intracellular glucose metabolism, and glucose uptake and lactate production were significantly increased. It was also found that the key glucose metabolic enzymes, Hexokinase 2 (HK2) and Lactate dehydrogenase-A (LDHA), were direct targets of miR-125b and miR-34a, respectively. Overexpression of miR-125b and miR-34a could prevent hyperglycemia-induced cardiomyocyte cell death. Finally, the restoration of HK2 and LDHA in miR-125b and miR-34a overexpressed cardiomyocytes recovered the cardiomyocytes' sensitivity to hyperglycemia.
conclusionOur results proposed a molecular mechanism for the microRNA-mediated diabetic cardiovascular protection and will contribute to developing treatment strategies for diabetes-associated cardiovascular dysfunction.
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