title: Glucose-6-phosphate dehydrogenase isozymes in Jordan Valley.
abstract: The mean levels of glucose-6-phosphate dehydrogenase (G-6-PD), its deficiency prevalence, and its isozyme type distribution were estimated and compared in five-to-ten-year-old normal school children in two populations of Jordan: the North Jordan Valley (90% black) and Irbid (not black). The prevalences of G-6-PD deficiency in North Jordan and Irbid were 5.5% and 4.62% respectively, and were statistically not different (P>0.05). However, the mean levels of G-6-PD in North Jordan Valley and Irbid were 119.4 IU/10(9) RBC and 128.4 IU/10(9) RBC respectively, and were statistically different (P<0.05). The distribution of G-6-PD isozyme type A (the African types) and type B in North Jordan Valley were 21.5% and 78.5% respectively, and the corresponding rates in Irbid were 5.4% for type A and 94.6% for type B. There was an association between the isozyme type and the region (P<0.05). The high prevalence of the African type of G-6-PD isozyme in Jordan is discussed.
authors.affiliation: Department of Veterinary Clinical Science, Biochemistry Department, Department of Pediatrics, Jordan University of Science and Technology, and Department of Pediatrics, Princess Basma Hospital, Irbid-Jordan.
authors.forename: L
authors.initials: L
authors.lastname: Sharif
authors.forename: N
authors.initials: N
authors.lastname: Bashir
authors.forename: M
authors.initials: M
authors.lastname: Barkawi
authors.forename: M
authors.initials: M
authors.lastname: Sheyab