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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Evidence for an additional locus for split hand/foot malformation in chromosome region 8q21.11-q22.3.
    Author: Gurnett CA, Dobbs MB, Nordsieck EJ, Keppel C, Goldfarb CA, Morcuende JA, Bowcock AM.
    Journal: Am J Med Genet A; 2006 Aug 15; 140(16):1744-8. PubMed ID: 16838310.
    Abstract:
    We identified a family where five members had nonsyndromic ectrodactyly. There were three known instances of nonpenetrance. Although four individuals had unilateral cleft hand, one individual had more severe, bilateral and asymmetric absence of the digits. None had foot abnormalities. After exclusion of linkage of SHFM in this family to five known loci, a genome wide scan was performed with DNA from 5 affected and 15 unaffected members of this family. Suggestive evidence for linkage of ectrodactyly to 8q was obtained on the basis of a maximum LOD score of 2.54 at theta (max) = 0 with GAAT1A4. Critical recombinants place the ectrodactyly gene in this family in a 16 cM (21 Mb) interval between D8S1143 and D8S556. Mutational analysis of two candidate genes (FZD6, GDF6) did not identify any mutations in affected members of this family. Our data indicate further genetic heterogeneity for ectrodactyly and suggest the presence of an additional SHFM locus in chromosome region 8q21.11-q22.3.
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