ASSESSMENT OF THE RELATIONSHIP BETWEEN (THR399ILE) POLYMORPHISM OF TLR4 GENE WITH DIABETIC FOOT ULCER IN TYPE 2 DIABETIC PATIENTS REFERRED TO THE CLINIC OF DIABETES & METABOLIC DISEASES

Type 2 diabetes is a metabolic disorder characterized by high blood sugar levels that can damage nerves. Many organs are affected ¡especially the foot that leading to loss of sensation. These factors make favorable conditions for the development of diabetic foot ulcers. Polymorphisms (Thr399Ile) of Toll Like Receptor4 (TLR4) gene due to malfunction of TLR4 protein which plays an important role in immunity. The purpose of this study was to determine the parameters which are affecting the imbalance resulting in chronic inflammation and wound healing. By showing the relationship between single nucleotide polymorphism (Thr399Ile) of TLR4 gene with diabetic foot ulcer we can identify a biomarker for prediction of diabetic foot ulcer.
This is a case-control study. Single nucleotide polymorphisms of TLR4 gene were genotyped by hit Tetra ARMS PCR technique. In this study, 100 and 120 diabetic patients with and without foot ulcer were selected as the cases and controls, respectively.
The Chi-square test revealed significant difference in frequency of TT, CC and TC alleles of (Thr399Ile) between case and control groups (P=0.021).
According to this study, there is a relationship between single nucleotide polymorphisms (Thr399Ile) of TLR4 gene with diabetic foot ulcer in type 2 diabetes patients