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TLR4 Polymorphisms (896A>G and 1196C>T) Affect the Predisposition to Diabetic Nephropathy in Type 2 Diabetes Mellitus

Authors
  • Khaghanzadeh, Narges1
  • Naderi, Nadereh1
  • Pournasrollah, Nazanin1
  • Farahbakhsh, Elahe1
  • Kheirandish, Masoumeh2
  • Samiei, Afshin1, 3
  • 1 Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas
  • 2 Endocrinology and Metabolism Research Center, Hormozgan University of Medical Sciences, Bandar Abbas
  • 3 Department of Immunology, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas
Type
Published Article
Journal
Diabetes Metabolic Syndrome and Obesity Targets and Therapy
Publisher
Dove Medical Press
Publication Date
Apr 03, 2020
Volume
13
Pages
1015–1021
Identifiers
DOI: 10.2147/DMSO.S238942
PMID: 32308451
PMCID: PMC7138628
Source
PubMed Central
Keywords
License
Green

Abstract

Purpose Type 2 diabetes mellitus (T2DM) is a disease with a steadily increasing incidence throughout the world. Some molecules regulating the innate immune responses such as toll-like receptor 4 (TLR4) have shown to be involved in late diabetic complications. This study aimed to investigate the association of TLR4 gene polymorphisms with clinicopathological aspects of T2DM in the Iranian population. Patients and Methods Two TLR4 896A>G and 1196C>T polymorphisms were assessed in 100 T2DM patients and 100 healthy controls using sequence-specific primers PCR. Demographic, anthropometric, and biochemical parameters were obtained from the participants. Results After logistic regression, in 1196C>T, a significant association was shown between diabetic nephropathy (DN) and CT genotype (P= 0.04, OR= 4.35, CI= (1.04–18.1)). TG level has increased significantly in both T2DM and control subjects with CT genotype (P= 0.027, OR= 1.005, 95% CI= (1.001–1.01)). For 896A>G variant, a significant association was also detected between AG genotype and increased oral glucose tolerance test (OGTT) level (P= 0.048, OR= 1.003, 95% CI= (1.00–1.005)). Conclusion Although minor alleles of 1196C>T and 896A>G variants have not directly been associated with type 2 diabetes, by involving in the dysregulation of serum TG and blood sugar levels, they might increase the risk of DN.

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