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  • Title: [Association of the genetic variation of (MSX1-7) and non syndromic cleft lip palate in Chilean subjects].
    Author: Blanco R, Jara L, Villaseca MC.
    Journal: Rev Med Chil; 1998 Jun; 126(6):637-45. PubMed ID: 9778871.
    Abstract:
    BACKGROUND: Homeotic genes have regulatory functions during development. It has been postulated that the human Msx-1 homeotic gene can be involved in the etiology of non syndromic cleft lip palate, since its homologous Msx-1 is involved in cleft palate of mice. AIM: To perform an association analysis between the genetic variation of Msx-1 and non syndromic cleft lip palate in Chilean subjects. PATIENTS AND METHODS: Seventy patients with non syndromic cleft lip palate, 136 healthy relatives of these patients and 69 non related normal individuals were studied. CA microsatellite in Msx-gene, that was amplified with PCR, was studied. RESULTS: No differences in the genetic frequencies of Msx-1 alleles, were observed in the three groups studied. Allelic heterogeneity for allele 2 seems to be related to cases of non syndromic cleft lip palate from multiplex families and heterogeneity for allele 3 is related with simplex families cases. CONCLUSIONS: These results seem to support the hypothesis of genetic heterogeneity in the etiology of non syndromic cleft lip palate.
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