Molecular characterization of glucose-6-phosphate dehydrogenase deficiency in the Eastern Province of Saudi Arabia.
The level of activity of the enzyme glucose-6-phosphate dehydrogenase (G6PD) was determined in 154 unrelated Saudi males and females with G6PD deficiency who were residing in the Eastern Province of Saudi Arabia. DNA was extracted from blood samples and analyzed for known G6PD mutations by polymerase chain reaction (PCR) and restriction fragment length polymorphism techniques. Two different polymorphic mutations were identified which accounted for 90% of the samples analyzed. Of 114 G6PD-deficient males, 96 had G6PD Mediterranean, nine had African deficient variant G6PD A- and in nine the mutation has not been identified. Of the 40 G6PD-deficient females, 34 were homozygous for the G6PD Mediterranean mutation and six were genetic compound, G6PD Mediterranean/G6PD A-. The data indicate that the G6PD Mediterranean mutation is the most common (84%) in the Eastern Province, followed by G6PD A- (5.8%). Seventy one subjects who suffered from favism were found to carry the Mediterranean mutation.
Al-Ali
Amein K
AK
Department of Clinical Biochemistry, College of Medicine, King Faisal University, Dammam, Saudi Arabia. ameinali@hotmail.com
Al-Mustafa
Zaki H
ZH
Al-Madan
Mohammed
M
Qaw
Foad
F
Al-Ateeq
Suad
S
D005260:Female; D005787:Gene Frequency; D005954:Glucosephosphate Dehydrogenase / Q000097:blood / Q000235:genetics; D005955:Glucosephosphate Dehydrogenase Deficiency / Q000235:genetics*; D006801:Humans; D008297:Male; D017354:Point Mutation; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D012529:Saudi Arabia / Q000453:epidemiology
D005954:Glucosephosphate Dehydrogenase