Hereditary Blood Factors of North Sinai Inhabitants

Populations of North Sinai, Bedouins of Bayadia and Akharsa tribes and city dwellers have been studied for some erythrocytes and serum factors. There were no signif­cant differences found in the ABO blood groups; gene frequency ranges arer 0.5978- 0.6601, P 0.2055.-0.2472, and q 0.1148-0.1708. Rh d factor is 0.3889 in Bayadia, 0.4052 in Akharsa and 0.2425 in city dwellers. A single hemoglobin variant, Hb D Sinai was detected among 240 Bedouins tested. G-6-PD deficiency was lower in Akharsa (3.07%) than in Bayadia (8.92%) and city dwellers (7.48%); GdA gene frequency was 1.5% in Bedouins (Bayadia and Akharsa) and 4.5% in city dwellers; PGDC was 7% in Bedouins and 5% in city dwellers. AK2 gene frequency was identical in both Bedouins and city dwellers (2%). Acid Phosphatase variants in North Sinai Bedouins were; Pa 0.2400 and Ph 0.7600; in city dwellers; Pa 0.1458, Ph 0.8542, Hp1 values in Bayadia, Akharsa and city dwellers were 0.3447, 0.2728 and 0.3312 respectivel

Hereditary Blood Factors and Anthropometry of the Inhabitants of the Egyptian Siwa Oasis

Some genetic blood markers and anthropometry of the inhabitants of Siwa Oasis are studied. The former included hemoglobin variants, blood grouping, G-6-PD screening, electrophoretic typing of red cell enzymes (C-6-PD, 6-PGD, AK and acid phosphatase) and haptoglobin typing. The data are compared with the existing information in Egypt, African and Mediterranean countries. Hb S and Hb G were found in 22.17% and 0.49% of cases tested re­spectively. Blood group study indicated high frequency of B gene (16%) with relatively low incidence of A gene (22%). The incidence of G-6-PD deficiency was 9.2% and type A+ subjects were 22%. A marked frequency of PGD1\u27 gene ( 16% ) was observed. None of the individuals tested showed AK2 gene. The general distribution of acid phosphatase genes was comparable to that found in Negroes. The haptoglobin pattern was close to those reported in African Negroes. The anthropometric data revealed the heterogeneity of modern Siwa natives and were consistent with the blood factors study. Both point to an admixture of Siwans with African Negroes, a conclusion which is corroborated by historical records