Immigrant doctors in Israel.
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Biomedical subjects
Publications and source records attributed to H Kanaaneh.
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We report results of typing two population samples, Israeli Arab Moslems and Arab Druze, for seven serum protein genetic variants. Data are presented in comparison with results for the same markers in a sample of Jordanian Arabs. In Israeli Moslems gene frequencies for BF (n = 169) were BF*S = 0.6361, BF*F = 0.3343, BF*S07 = 0.0296, and BF*1 = 0, and for TF (n = 90) the gene frequencies were: TF*C1 = 0.7167, TF*C2 = 0.2611, and TF*C3 = 0.0222. Allele frequencies for AHSG in Israeli Moslems (n = 155) and Druze (n = 192) were AHSG*1 = 0.9129 and 0.8750 and AHSG*2 = 0.0806 and 0.1250, respectively. Gene frequencies for PLG in Moslems (n = 149) and Druze (n = 190) were PLG*A = 0.4597 and 0.5288 and PLG*B = 0.5101 and 0.4188, respectively. The typing of Israeli Arab Druze (n = 194) for F13B resulted in F13B*1 = 0.8454, F13B*2 = 0.0387, F13B*3 = 0.0979, and F13B*4 = 0.0180. Results on the same population for PI (n = 192) were PI*M1 = 0.7839, PI*M2 = 0.1276, PI*M3 = 0.0781, PI*M4 = 0.0026, and PI*M5 = 0.0026. Observed rare alleles in various systems indicate gene flow from Europe, Africa, and Asia into the Middle East. The results on Arab populations were considered in relation to available population data in the three adjacent continents. The emerging gene frequency profile for Arabs seems to fit with the central geographic and climatic position of the Middle East.
Wilson disease (WD) is an inherited disorder of copper metabolism that affects the brain, liver, and other organs. Our group recently reported close linkage between the locus for WD and a polymorphic red cell enzyme, esterase D (EsD), in a large inbred Israeli-Arab lineage. We have subsequently studied two unrelated Druze kindreds in order to confirm this linkage and more precisely define the distance between the two loci. The maximum likelihood estimate of recombination was determined to be zero with lod scores of 1.48 and 1.06 in each Druze family, respectively. The combined maximum lod score based on pooled results from the Israeli-Arab and Druze kindreds is 5.49 at theta = 0.03. WD is one of a few autosomal recessive disorders that has been mapped by classical family study methods. In this paper, the merits for using large, inbred families in linkage studies of rare recessive disorders are discussed. Major considerations for pedigree selection are size and number of constituent nuclear families, number and distribution of affected individuals, and pedigree structure that may provide information for determination of phase between the disease and marker loci.
As part of a study with a quadruple inactivated vaccine (diphtheria-pertussis-tetanus-polio), the serologic response to the pertussis antigen was investigated in infants at the age of routine immunization, inoculated with one of the following two regimens: either 0.5 ml vaccine at 2 and 3 1/2 months and a booster six months later, or an identical dose of vaccine given at 2, 4 and 6 months and a booster at the age of 12 months. A pertussis agglutination titer of greater than or equal to 1:10 was considered an immune response to the administration of the antigen. Two basic doses of pertussis antigen induced an immune response in about 92% of children, which was very close to that following three basic doses. A 100% seroconversion was observed in both groups one month after the booster dose, and geometric mean values were high in both regimens. At one and two years after the booster, the pertussis agglutinins were present in 100% of children of both groups, with higher geometric mean values in the group given the three basic doses regimen.
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