PMID: 18711293Aug 20, 2008Paper

Clinical and genetic mapping of X chromosome in the X-linked dominant inherited Alport's syndrome

Saudi Journal of Kidney Diseases and Transplantation : an Official Publication of the Saudi Center for Organ Transplantation, Saudi Arabia
Yong DaiChenxiao Hu

Abstract

To study the hereditary mode and clinical characteristics and detect mutations of gene COL4A5 encoding type IV collagen a5 chain among family members of an X-linked dominant inherited Alport's syndrome (AS) family of China, we studied all of 38 family members of whom 2 volunteers underwent renal biopsy. Genomic DNA from all members of the AS family was characterized. All of 51 exons of COL4A5 gene were amplified by polymerase chain reaction (PCR) with the primers synthesized according to the published flanking intervening sequences. PCR products were further analyzed by agarose gel electrophoresis and single strand conformation polymorphism (SSCP) analysis. The study subjects revealing polymorphism by SSCP analysis were directly sequenced. Suspected exons were analyzed with reverse sequencing. Six males and 9 females of the family were diagnosed to have AS by clinical manifestations, family history and/or renal biopsy. Four patients died of end-stage renal disease (ESRD), and 1 patient received kidney transplantation. In the rest of the family members renal function remained normal, however, 22 (58%) revealed hematuria, 11/22 (59%) of them also had proteinuria. The hearing loss was detected in 6 (16%) and ocular lesion in 20 (5...Continue Reading

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