T2DM can be triggered by two collaborating factors, namely genetics and the environment. This study aimed to identify genetic markers that can be used to detect the possibility of a person having T2D using the random amplified polymorphism DNA (RAPD) method. The study was carried out cross-sectional and involved 60 samples consisting of 30 positive T2D samples and 30 negative samples T2D. The primer used for PCR-RAPD was D20 (5'-ACCCGGTCAC-3’). The PCR-RAPD results were then analyzed using the scoring method and analyzed using the non-parametric Chi-Square test (cl: 95%). Among T2D, 576 bp band were confirmed to be markers in the patients.

Diabetes mellitus is a metabolic disorder characterized by not produced insulin or disruption of insulin action. Diabetes mellitus was reported correlated with TCF7L2 gene mutation. This study aimed to analyze the TCF7L2 gene in families with type 2 diabetes. 5 samples were used in this study, the methods flow through DNA Isolation, PCR, and sequencing. Samples were amplified by the PCR technique using primers that were designed to detect the TCF7L2 gene, (F: 5'-GGCTTGATTGTTGATTATGGGC3' and R:5 'TCTGGCACTCAGAGAGT 3'). The amplification and sequencing resulted in 368 bp (located at 103631-103972 bp). We found a transition mutation at C103950T. The polymorphisms found may characteristic in this population because they are not found in other sequences. Keywords : Diabetes mellitus, TCF7L2 gene, mutation