Abstract
Background & objective: Persistent hyperglycemia is the driving force for the progression of diabetic vascular complications and inflammatory response. S100A8 and S100A9 are small calcium-binding proteins involved in various cellular processes, including inflammation and immune responses. Tristetraprolin (TTP), alternatively known as zinc finger protein 36, acts as an RNA-binding molecule that has an important role in regulating the expression of messenger RNAs containing AU-rich elements. We aimed to address the involvement of inflammatory mediators like S100A8/A9 proteins and, RNA-binding proteins, in microvascular complications of type 2 diabetes mellitus (T2DM). Methodology: The study was conducted from October 2022 to April 2023. We enrolled 200 subjects in this study involved in five equal groups: T2DM, diabetic nephropathy (DN), diabetic retinopathy (DR), diabetic neuropathy (DNR) and 40 normal healthy subjects as control group. CBC analysis was performed directly using the hematology analyzer CBC (Sysmex, Japan) technique. Serum S100 A8/A9 were measured by ELISA, and TTP gene expression was measured by RT-qPCR. Results: The study's findings revealed a notable increase in neutrophil/lymphocytes ratio (NLR) and S100A8/A9 levels in patients groups compared to the healthy group (P < 0.05), while decreased TTP mRNA expression was observed in all patient groups compared to control (P < 0.05) Conclusion: An increase in S1008A/9A levels with down regulation of anti-inflammatory binding protein (TTP) in patients suffering from type 2 diabetes mellitus with diabetic nephropathy, diabetic retinopathy, or diabetic neuropathy, suggests to be the therapeutic targets to regulate inflammatory response in type 2 diabetes mellitus and its complications. Abbreviations: T2DM - Type 2 Diabetes Mellitus; DN - Diabetic Nephropathy; DR - Diabetic Retinopathy; DNR - Diabetic Neuropathy; NLR- Neutrophil/Lymphocyte Ratio; TTP - Tristetraprolin Key words: Diabetes Mellitus; Inflammation; S100A8/A9; Inflammation; RNA-binding protein; T2DM; Neutrophil/Lymphocyte Ratio Citation: Sarhan A, Almzaiel AJ, Majeed Alrufaie MM. Potential role of S100A8/A9 and RNA-binding protein in microvascular complications of type2 diabetes mellitus. Anaesth. pain intensive care 2023;27(6):673−680. DOI: 10.35975/apic.v27i6.2338 Received: August 15, 2023; Reviewed: September 03, 2023; Accepted: September 15, 2023
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