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3号染色体p22 - p24区域上伴有咳嗽和胃食管反流的遗传性感觉神经病的一个基因座。

A locus for hereditary sensory neuropathy with cough and gastroesophageal reflux on chromosome 3p22-p24.

作者信息

Kok C, Kennerson M L, Spring P J, Ing A J, Pollard J D, Nicholson G A

机构信息

Neurobiology Laboratory, ANZAC Research Institute, University of Sydney, Sydney, Australia.

出版信息

Am J Hum Genet. 2003 Sep;73(3):632-7. doi: 10.1086/377591. Epub 2003 Jul 17.

Abstract

Hereditary sensory neuropathy type I (HSN I) is a group of dominantly inherited degenerative disorders of peripheral nerve in which sensory features are more prominent than motor involvement. We have described a new form of HSN I that is associated with cough and gastroesophageal reflux. To map the chromosomal location of the gene causing the disorder, a 10-cM genome screen was undertaken in a large Australian family. Two-point analysis showed linkage to chromosome 3p22-p24 (Zmax=3.51 at recombination fraction (theta) 0.0 for marker D3S2338). A second family with a similar phenotype shares a different disease haplotype but segregates at the same locus. Extended haplotype analysis has refined the region to a 3.42-cM interval, flanked by markers D3S2336 and D3S1266.

摘要

遗传性感觉神经病I型(HSN I)是一组常染色体显性遗传的周围神经退行性疾病,其中感觉特征比运动受累更为突出。我们描述了一种与咳嗽和胃食管反流相关的新型HSN I。为了确定导致该疾病的基因的染色体定位,我们对一个澳大利亚大家庭进行了10厘摩(cM)的基因组筛查。两点分析显示与3号染色体p22 - p24区域连锁(标记D3S2338在重组率(θ)为0.0时Zmax = 3.51)。另一个具有相似表型的家庭共享不同的疾病单倍型,但在同一基因座处发生分离。扩展单倍型分析已将该区域缩小至一个3.42厘摩的区间,两侧分别为标记D3S2336和D3S1266。

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Online Mendelian Inheritance in Man 'OMIM'.《人类孟德尔遗传在线》(OMIM)。
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