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Objectives: This study aimed to determine whether the expression level and genetic polymorphism scavenger receptor class B type 1 (SCARB1) rs5888 may be used as biological markers in type 2 diabetes mellitus (T2DM). Methods: This case-control study was conducted at King George’s Medical University, Lucknow, India, from September 2018 to December 2019. Blood samples were collected from each individual with T2DM and each healthy individual. Total proteins were determined using western blot analysis. Additionally, restriction fragment length polymorphism analysis was achieved to detect the incidence of genetic polymorphisms. Results: A total of 600 individuals, including 300 individuals with T2DM and 300 healthy individuals, were enrolled in the study. Western blot analysis results revealed that the protein expression of SRB1 was significantly decreased in T2DM of SCARB1 CC variant when compared with controls (P = 0.007). The genotype distribution and the allelic frequencies for the SRB1 polymorphism were significantly different between T2DM and controls (P = 0.03). The CC genotype of the SCARB1 polymorphism showed a potential association with the incidence of T2DM (odds ratio = 1.19, 95% confidence interval = 0.63–2.25; P = 0.577). Conclusion: The expression levels and genetic polymorphisms of the SCARB1 CC variant may be potential biomarkers for the occurrence of T2DM.
Keywords: Genetic Polymorphism; Type 2 Diabetes Mellitus; Human SRB1 Protein; Biomarker; India.
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