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Mol Cell Biochem. 2019 Aug;458(1-2):171-183. doi: 10.1007/s11010-019-03540-9. Epub 2019 Apr 20.

Novel insights of elevated systemic levels of bisphenol-A (BPA) linked to poor glycemic control, accelerated cellular senescence and insulin resistance in patients with type 2 diabetes.

Author information

1
Department of Cell and Molecular Biology, Madras Diabetes Research Foundation & Dr. Mohan's Diabetes Specialties Centre, ICMR-Centre for Advanced Research on Diabetes, Gopalapuram, Chennai, 600086, India.
2
Metabolic Research Unit, Metabolic Genetic Diseases Laboratory, School of Medicine, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia.
3
Department of Cell and Molecular Biology, The University of Mississippi Medical Center, Jackson, MS, 39216-4505, USA.
4
Department of Cell and Molecular Biology, Madras Diabetes Research Foundation & Dr. Mohan's Diabetes Specialties Centre, ICMR-Centre for Advanced Research on Diabetes, Gopalapuram, Chennai, 600086, India. balusignal@gmail.com.

Abstract

There is a striking interaction of genes and environment in the etiology of type 2 diabetes mellitus (T2DM). While endocrine disrupting chemicals (EDCs) like bisphenol-A (BPA) have received special attention for their mechanistic role in metabolic disruption, there is a lack of clinically relevant data on BPA levels in Asian Indians, a population which is more susceptible to type 2 diabetes mellitus (T2DM) and cardiovascular diseases. Therefore, we measured systemic levels of BPA in patients with T2DM compared to individuals with normal glucose tolerance (n = 30 each). Serum BPA levels were estimated using ELISA kit, and biochemical determinations were done by standard protocols. Peripheral blood mononuclear cells (PBMCs) were used to profile the gene expression alterations with special reference to inflammation, estrogen receptors, and cellular senescence in these subjects. Serum levels of BPA were significantly higher in patients with T2DM compared to control individuals and positively correlated to poor glycemic control and insulin resistance. Patients with T2DM exhibited significantly elevated mRNA levels of senescence (GLB1, p16, p21, and p53) and inflammatory (IL6 and TNF-α) markers, shortened telomeres as well as elevated levels of estrogen-related receptor gamma (ERRγ), a recently identified receptor for BPA. BPA levels were positively correlated to senescence indicators, inflammatory markers and ERRγ and negatively correlated to telomere length. Our study is the first data in the clinical diabetes setting to demonstrate an association of increased BPA levels with cellular senescence, proinflammation, poor glycemic control, insulin resistance, and shortened telomeres in patients with T2DM.

KEYWORDS:

Bisphenol-A; ERRγ; Inflammation; Insulin resistance; Senescence; T2DM

PMID:
31004310
DOI:
10.1007/s11010-019-03540-9
[Indexed for MEDLINE]

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