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ArtikelGene copy number variations in Asian patients with congenital bilateral absence of the vas deferens  
Oleh: Lee, Chia-Huei ; Wu, Chien-Chih ; Wu, Yi-No ; Chiang, Han-Sun
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Human Reproduction vol. 24 no. 03 (Mar. 2009), page 748.
Topik: array-based comparative genomic hybridization/copy number variations/congenital bilateral absence of the vas deferens/3q26.1 microdeletion/tiling path array
Ketersediaan
  • Perpustakaan FK
    • Nomor Panggil: H07.K.2009.01
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
    Lihat Detail Induk
Isi artikelBACKGROUND: Congenital bilateral absence of the vas deferens (CBAVD) is a distinct clinical entity accounting for 25% of obstructive azoospermia in infertile men. The association between CBAVD and mutated CFTR (cystic fibrosis transmembrane conductance regulator) alleles is well demonstrated in Caucasians, but the identity of CBAVD-susceptibility genes remains elusive in Asians. We investigate genomic copy number variations (CNVs) in a patient cohort of Taiwan. METHODS AND RESULTS: Genome-wide screening for genetic CNVs was conducted on eight individuals with CBAVD using array-based comparative genomic hybridization. One recurrent CNV was detected on 3q26.1 in five patients, and another was detected on a reproduction-related gene PANK2 in two patients. For the former, we further characterized the breakpoints in CBAVD and assessed the incidence in healthy individuals by tiling path arrays. The deletion in each patient was confirmed, and seven out of the eight controls were also affected. Examination of the homozygous loss of PANK2 by PCR in a larger cohort showed a homozygous deletion in only one of the 26 CBAVD males, and not in any of the 20 azoospermic patients without CBAVD, nor in any of the 16 control subjects. CONCLUSIONS: Our results suggest that 3q26.1 may not be a critical region for CBAVD. Additionally no strong association was found for PANK2 in this reproduction disorder. Other reproduction-related genes, such as PBX1, BRD3, COL18A1 and HMOX1, identified by this initial study may inspire further investigation.
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