Document Detail

Refinement of the locus for autosomal recessive cone-rod dystrophy (CORD8) linked to chromosome 1q23-q24 in a Pakistani family and exclusion of candidate genes.
MedLine Citation:
PMID:  16897189     Owner:  NLM     Status:  MEDLINE    
Cone-rod retinal dystrophy (CORD) characteristically leads to early impairment of vision due to the simultaneous involvement of both cone and rod photoreceptor cells. Several loci/genes have been identified for CORD, including the cone-rod dystrophy (CORD8) locus [OMIM#605549] identified for a Pakistani family. All members of this family underwent detailed clinical re-examination to determine the nature of the dystrophy. All affected individuals suffered from bilateral CORD8 with an autosomal recessive mode of inheritance. The CORD8 locus, mapped on chromosome 1q12-q24, consisted of a very large critical disease region of 21 cM. Analysis with more recently available microsatellite markers within the reported region showed heterozygosity with some of the new markers, and the crossovers lead to a refinement of the disease region from 21 to 11.53 cM. Mutation screening has excluded some of the candidate genes in the region. The disease phenotype of this family could be due to a mutation in a novel gene located within the refined CORD8 locus.
Muhammad Ismail; Aiysha Abid; Khalid Anwar; S Qasim Mehdi; Shagufta Khaliq
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-08-03
Journal Detail:
Title:  Journal of human genetics     Volume:  51     ISSN:  1434-5161     ISO Abbreviation:  J. Hum. Genet.     Publication Date:  2006  
Date Detail:
Created Date:  2006-09-12     Completed Date:  2006-11-08     Revised Date:  2007-08-13    
Medline Journal Info:
Nlm Unique ID:  9808008     Medline TA:  J Hum Genet     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  827-31     Citation Subset:  IM    
Biomedical and Genetic Engineering Division, Dr. A. Q. Khan Research Laboratories, GPO Box 2891, 25 Mauve Area, Islamabad, 44000, Pakistan.
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MeSH Terms
Chromosomes, Human, Pair 1 / genetics
Genes, Recessive
Linkage (Genetics)
Retinitis Pigmentosa / genetics*,  pathology
Grant Support
063406/Z/2000/Z//Wellcome Trust

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