Investigative ophthalmology & visual science · 2001
Locus for autosomal recessive nonsyndromic persistent hyperplastic primary vitreous.
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Khaliq S, Hameed A, Ismail M, Anwar K, Leroy B, Payne A M, Bhattacharya S S, Mehdi S Q
Аннотация
PURPOSE: To map the disease locus in a six-generation, consanguineous Pakistani family affected by nonsyndromic autosomal recessive persistent hyperplastic primary vitreous (arPHPV). All affected individuals had peripheral anterior synechiae and corneal opacities with variable degrees of cataract and a retrolenticular white mass behind the lens.
METHODS: Genomic DNA from family members was typed for alleles at more than 400 known polymorphic genetic markers, by polymerase chain reaction. Alleles were assigned to individuals, which allowed calculation of lod scores.
RESULTS: A maximum two-point lod score of 4.07 was obtained with marker D10S1225 with no recombination. Two recombinations with marker D10S208 and D10S537 localized the disease within a region of approximately 30 centimorgans (cM). However, homozygosity across the region refined the arPHPV locus to 13 cM.
CONCLUSIONS: Linkage analysis shows localization of nonsyndromic arPHPV to chromosome10q11-q21.
METHODS: Genomic DNA from family members was typed for alleles at more than 400 known polymorphic genetic markers, by polymerase chain reaction. Alleles were assigned to individuals, which allowed calculation of lod scores.
RESULTS: A maximum two-point lod score of 4.07 was obtained with marker D10S1225 with no recombination. Two recombinations with marker D10S208 and D10S537 localized the disease within a region of approximately 30 centimorgans (cM). However, homozygosity across the region refined the arPHPV locus to 13 cM.
CONCLUSIONS: Linkage analysis shows localization of nonsyndromic arPHPV to chromosome10q11-q21.
Предметные рубрики MeSH
AdolescentAdultAnterior Eye SegmentCataractChildChild, PreschoolChromosome MappingChromosomes, Human, Pair 10ConsanguinityCorneal OpacityDNAEye AbnormalitiesFemaleGenes, RecessiveGenetic LinkageHumansHyperplasiaLod ScoreMaleMicrophthalmosMicrosatellite RepeatsPedigreePolymerase Chain ReactionVitreous Body