title: [Medical genetics and migration].
abstract: Any migration results in the transfer of normal and pathological genes from one population to another. The frequency of pathological genes may vary according to the population, sickle cell anaemia, for instance, being frequent in Africa and cystic fibrosis in Europe. It follows that the hereditary pathology of migrants is not the same as that of the host population, at least during the immediate post-migration years; subsequently, all depends on the degree of cross-breeding. In epidemiological genetics the study of the frequency of some diseases in the original population, among migrants and in the host population enables the effects of genes and environment on the aetiology of these diseases to be investigated.
authors: Unité de Recherches de Génétique épidémiologique, INSERM U 155, Paris.
authors: J
authors: J
authors: Feingold
mesh_terms: D030342:Genetic Diseases, Inborn / Q000453:epidemiology*; D005826:Genetics, Medical; D005828:Genetics, Population; D006801:Humans; D014171:Transients and Migrants
vernacular_title: Génétique médicale et migration.