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  • Title: A successful approach for the detection of Fabry patients in Argentina.
    Author: Rozenfeld PA, Tarabuso A, Ebner R, Ramallo G, Fossati CA.
    Journal: Clin Genet; 2006 Apr; 69(4):344-8. PubMed ID: 16630168.
    Abstract:
    Fabry disease is an X-linked lysosomal disorder caused by the deficiency of the lysosomal enzyme alpha-galactosidase A (alpha-Gal A). In males, the laboratory diagnosis is based on the demonstration of decreased levels of alpha-Gal A activity, while in females, the disease is diagnosed by the identification of a mutation in alpha-Gal A gene. Fabry disease in Argentina is underdiagnosed. To date, no comprehensive screening study of Fabry disease in our country has been reported. The present study aimed at developing a targeted screening for the detection of Fabry patients from Argentina based on the set of typical signs and symptoms. We received 121 blood samples from probable Fabry patients for enzymatic and genetic assay. We diagnosed six Fabry patients from six unrelated families, representing a yield of detection of 4.96%. The mutations detected in five of the families analysed were missense mutations: p.Leu243Trp, p.Asp155His, p.Leu415Pro, p.Cys94Tyr and p.Leu191Pro. After the detection of a Fabry patient, his/her relatives were also screened. In the course of these family studies, other 64 Fabry patients, 29 males and 35 females, were detected. To our knowledge, this is the first comprehensive screening of Fabry disease in Argentina. We detected 70 patients in a period of 2.5 years. The development of targeted protocols and the constitution of interdisciplinary groups for the identification of patients with Fabry disease are recommended to obtain a higher yield in the process.
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