The Israel Medical Association journal : IMAJ · 2008
Gaucher disease in Arab patients at an Israeli referral clinic.
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Brautbar Ariel, Abrahamov Aya, Hadas-Halpern Irith, Elstein Deborah, Zimran Ari
Аннотация
BACKGROUND: With regard to ethnic predilections for Gaucher disease, the most common storage disorder, Ashkenazi Jews are at risk for the non-neuronopathic form (type I), Norbottnian Swedes are at risk for the subacute neuronopathic form (type III), and perhaps Arabs are at risk for the very rare cardiac variant of the subacute neuronopathic form (type IIIc) for which there is a relatively tight genotype-phenotype correlation. Type II, the acute infantile form, being the rarest form, has not been associated with any ethnic predilection.
OBJECTIVES: To examine whether Arab ethnicity influences the Gaucher phenotype.
METHODS: We reviewed the records of all Arab patients in a referral clinic of 586 patients in Israel.
RESULTS: There were 46 patients (7.8%) of Arab ethnicity: 23 (50%) had type I disease, 16 (34.8%) had type IIIc disease, 4 (8.7%) had type IIIb disease, and 3 (6.5%) had type II disease. Type IIIc disease was characterized by genotype-phenotype correlation with homozygosity for the D409H (1342C) mutation. All five Bedouin patients (10.9%) had the R48W (C259T) mutation on at least one allele.
CONCLUSIONS: For all genotypes, disease severity among Arab patients was relatively similar to that reported among other Caucasian patients. Apparently Arab ethnicity does not impact phenotypic expression in Gaucher disease in a unique manner. The predilection for type IIIc may be a result of consanguinity.
OBJECTIVES: To examine whether Arab ethnicity influences the Gaucher phenotype.
METHODS: We reviewed the records of all Arab patients in a referral clinic of 586 patients in Israel.
RESULTS: There were 46 patients (7.8%) of Arab ethnicity: 23 (50%) had type I disease, 16 (34.8%) had type IIIc disease, 4 (8.7%) had type IIIb disease, and 3 (6.5%) had type II disease. Type IIIc disease was characterized by genotype-phenotype correlation with homozygosity for the D409H (1342C) mutation. All five Bedouin patients (10.9%) had the R48W (C259T) mutation on at least one allele.
CONCLUSIONS: For all genotypes, disease severity among Arab patients was relatively similar to that reported among other Caucasian patients. Apparently Arab ethnicity does not impact phenotypic expression in Gaucher disease in a unique manner. The predilection for type IIIc may be a result of consanguinity.