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Published in: Clinical and Experimental Medicine 1/2020

01-02-2020 | Type 2 Diabetes | Original Article

Senescence-associated miR-34a and miR-126 in middle-aged Indians with type 2 diabetes

Authors: Joyita Banerjee, Swagata Roy, Yogita Dhas, Neetu Mishra

Published in: Clinical and Experimental Medicine | Issue 1/2020

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Abstract

Rapid urbanization and unhealthy dietary patterns critically increase the risk of type 2 diabetes (T2D) in middle-aged Indians. However, despite recent evidence of senescence-associated microRNAs (SA-miRNAs) in regulating complex pathways of ageing, their expressions in middle-aged Indians with T2D remain unexplored. Hence we aimed to investigate the changes in expressions of SA-miRNAs miR-34a and miR-126 in middle-aged T2D patients. A total of 30 T2D patients and 30 controls were recruited of age 31–50 years. The expressions of plasma miR-34a and miR-126 were determined by quantitative PCR. Oxidized LDL (OxLDL) and malondialdehyde (MDA) levels were quantified using enzyme-linked immunosorbent assay (ELISA). The effect of different glucose concentrations on miR-34a, miR-126, senescence-associated, and oxidative stress-responsive genes were also studied in an in vitro model of mice pancreatic β-cells. MiR-34a was significantly upregulated, whereas miR-126 was nonsignificantly reduced in T2D patients as compared to controls. T2D patients showed elevated levels of oxidative stress markers than controls. Analysis of cultured mice pancreatic β-cells exposed to high glucose showed significant upregulation of miR-34a, miR-126, p53, and superoxide dismutase 2 (SOD2). We found that circulating miR-34a levels and oxidative stress markers levels were elevated in the middle-aged Indians with T2D as compared to controls. The presence of diabetes may aggravate the normal ageing process in the middle-aged Indians. These SA-miRNAs can also be used to check the cellular dysfunctions and ageing of pancreatic β-cells.
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Literature
1.
go back to reference Anjana RM, Pradeepa R, Deepa M, et al. Prevalence of diabetes and prediabetes (impaired fasting glucose and/or impaired glucose tolerance) in urban and rural India: phase I results of the Indian Council of Medical Research–INdia DIABetes (ICMR–INDIAB) study. Diabetologia. 2011;54:3022–7. https://doi.org/10.1007/s00125-011-2291-5.CrossRefPubMed Anjana RM, Pradeepa R, Deepa M, et al. Prevalence of diabetes and prediabetes (impaired fasting glucose and/or impaired glucose tolerance) in urban and rural India: phase I results of the Indian Council of Medical Research–INdia DIABetes (ICMR–INDIAB) study. Diabetologia. 2011;54:3022–7. https://​doi.​org/​10.​1007/​s00125-011-2291-5.CrossRefPubMed
16.
go back to reference Carnero A. Markers of cellular senescence. In: Galluzzi L, Vitale I, Kepp O, Kroemer G, editors. Cell Senescence Methods in Molecular Biology (Methods and Protocols) Humana Press. NJ: Totowa; 2013. p. 63–81.CrossRef Carnero A. Markers of cellular senescence. In: Galluzzi L, Vitale I, Kepp O, Kroemer G, editors. Cell Senescence Methods in Molecular Biology (Methods and Protocols) Humana Press. NJ: Totowa; 2013. p. 63–81.CrossRef
34.
go back to reference Friedewald WT, Levy RI, Fredrickson DS. Estimation of the concentration of low-density lipoprotein cholesterol in plasma, without use of the preparative ultracentrifuge. Clin Chem. 1972;18:499–502.CrossRefPubMed Friedewald WT, Levy RI, Fredrickson DS. Estimation of the concentration of low-density lipoprotein cholesterol in plasma, without use of the preparative ultracentrifuge. Clin Chem. 1972;18:499–502.CrossRefPubMed
41.
go back to reference Liu H, Jin M, Tian H, et al. MiR-34a and miR-34c are involved in the pathogenesis of type-2 diabetes by modulating the cell cycle of pancreatic beta-cell. Int J Clin Exp Pathol. 2016;9:5340–5. Liu H, Jin M, Tian H, et al. MiR-34a and miR-34c are involved in the pathogenesis of type-2 diabetes by modulating the cell cycle of pancreatic beta-cell. Int J Clin Exp Pathol. 2016;9:5340–5.
Metadata
Title
Senescence-associated miR-34a and miR-126 in middle-aged Indians with type 2 diabetes
Authors
Joyita Banerjee
Swagata Roy
Yogita Dhas
Neetu Mishra
Publication date
01-02-2020
Publisher
Springer International Publishing
Keyword
Type 2 Diabetes
Published in
Clinical and Experimental Medicine / Issue 1/2020
Print ISSN: 1591-8890
Electronic ISSN: 1591-9528
DOI
https://doi.org/10.1007/s10238-019-00593-4

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