LAUSR

OBJECTIVE Present study was undertaken to study the association between sickle cell anemia (SCA) and glucose-6-phosphate dehydrogenase (G6PD) deficiency from Sahu and Kurmi population of Durg and Rajnandgaon district of Chhattisgarh, India. METHOD A random sampling of 1749 individuals was done. SCA and G6PD deficiency was detected by slide test followed by electrophoresis and Enzymatic reaction indicated by change in colour respectively. Further the samples were subjected to analyze glutathione-S-transferase (GST) i.e. GSTM1 and GSTT1 gene polymorphism, variance of G6PD among G6PD deficient samples by PCR-RFLP. Oxidative stress and DNA damage by comet assay was also analyzed. RESULTS Present finding indicates positive correlation between SCA and G6PD deficiency in Durg and Rajnandgaon district [Durg: (r = 0.92; HbAS-G6PDd and r = 0.56; HbSS-G6PDd) Rajnandgaon: (r = 0.63; HbAS-G6PDd and r = 0.86; HbSS-G6PDd)]. Significant changes (P < 0.05) in antioxidant enzymatic parameters were observed in HbSS and G6PD with sickle positive individual. Assessment of DNA damage by Comet assay considering Head DNA percent, Tail DNA percent, Tail length and Tail moment also showed significant changes (P < 0.05) within all concerned parameters in HbSS and G6PD with sickle positive individual. Analysis of GST gene polymorphism showed that frequency of individuals carrying the GSTM1 null genotype was higher in HbAS (60%) and the frequency of individual carrying the GSTT1 null genotype was found higher in HbSS (66.6%). G6PD variants analysis also confirmed the presence of highest percentage of mutation among G6PD deficient population as compared to control and a positive correlation was observed between G6PD deficiency and mutant variants of G6PD gene [Rajnandgaon: (r = 0.67; G6PDd-Mahidol mutated and r = 0.90; G6PDd-Union mutated) Durg: (r = 0.91; G6PDd-Mahidol mutated and r = 0.01; G6PDd-Union mutated)] . CONCLUSION Thus present finding indicates positive correlation between SCA and G6PD deficiency in Chhattisgarh, India.