Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is caused by one or more mutations
in the G6PD gene on chromosome X. It affects approximately 400 million people worldwide.
The purpose of this study was to detect the prevalence of G6PD deficiency and G6PD
gene mutations in the hospital-based settings in patients referred for suspected G6PD
deficiency. A qualitative fluorescent spot test and dichlorophenol-indolphenol (DCIP)
test were performed. G6PD-deficient, positive samples were further processed for mutation
analysis by Sanger sequencing. Out of 1,069 cases, 95 (8.8%) were detected as G6PD
deficient (by DCIP test) and were sent for molecular analysis. The G6PD Mediterranean
mutation (563C > T) is the most common variant among G6PD-deficient individuals followed
by the Coimbra (592C→T) and Orissa (131C→G) variants. We concluded that all symptomatic
patients (anemic or jaundiced) should be investigated for G6PD deficiency. Our findings
will inform our population screening approach and help provide better management for
G6PD-deficient patients.
Keywords
G6PD - gene - mutation