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一名患有唐氏综合征的儿童出现Dic(21;21),其母亲有异常的9号染色体变异。

Dic(21;21) in a Down's syndrome child with an unusual chromosome 9 variant in the mother.

作者信息

Berg J M, Gardner H A, Gardner R J, Goh E G, Markovic V D, Simpson N E, Worton R G

出版信息

J Med Genet. 1980 Apr;17(2):144-8. doi: 10.1136/jmg.17.2.144.

DOI:10.1136/jmg.17.2.144
PMID:6445984
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1048523/
Abstract

A child with characteristic clinical features of Down's syndrome and raised red cell SOD-1 activity was found to have, in addition to a single chromosome 21, a reverse dicentric tandem translocation of two No 21s with dual NORs and C band regions. The breakpoints on the chromosomes involved in the translocation were at the most distal end of the long arms (21q223). The phenotypically normal mother carried a rare variant of a chromosome 9.

摘要

一名具有唐氏综合征典型临床特征且红细胞超氧化物歧化酶-1(SOD-1)活性升高的儿童,除了有一条21号染色体外,还存在两条21号染色体的反向双着丝粒串联易位,伴有双核仁组织区(NORs)和C带区域。参与易位的染色体上的断点位于长臂的最远端(21q223)。表型正常的母亲携带一种罕见的9号染色体变异体。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/43d5199432cb/jmedgene00124-0066-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/1ecc3c535a09/jmedgene00124-0064-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/153a724cd870/jmedgene00124-0065-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/43d5199432cb/jmedgene00124-0066-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/1ecc3c535a09/jmedgene00124-0064-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/153a724cd870/jmedgene00124-0065-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/86bb/1048523/43d5199432cb/jmedgene00124-0066-a.jpg

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Dic(21;21) in a Down's syndrome child with an unusual chromosome 9 variant in the mother.一名患有唐氏综合征的儿童出现Dic(21;21),其母亲有异常的9号染色体变异。
J Med Genet. 1980 Apr;17(2):144-8. doi: 10.1136/jmg.17.2.144.
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Molecular topography of the secondary constriction region (qh) of human chromosome 9 with an unusual euchromatic band.具有异常常染色质带的人类9号染色体次缢痕区域(qh)的分子拓扑结构
Am J Hum Genet. 1993 May;52(5):981-6.
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An extra band within the human 9qh+ region that behaves like the surrounding constitutive heterochromatin.人类9qh+区域内有一条额外的带,其表现与周围的组成型异染色质相似。

本文引用的文献

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The use of dermal configurations in the diagnosis of mongolism.皮肤形态在先天愚型诊断中的应用。
Pediatr Clin North Am. 1958 May:531-43. doi: 10.1016/s0031-3955(16)30666-6.
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Superoxide dismutase activity in leukocytes.白细胞中的超氧化物歧化酶活性。
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Dermatoglyphic nomogram for the diagnosis of Down's syndrome.用于诊断唐氏综合征的皮纹列线图。
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Bisatellited dicentric chromosome: a report on a case with karyotype 47,XY, + psu dic(22)t(22;22)(22pter to cen to 22q11::22q11 to 22pter).双随体双着丝粒染色体:一例核型为47,XY, + psu dic(22)t(22;22)(22pter至cen至22q11::22q11至22pter)病例的报告。
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Extra euchromatic band in the qh region of chromosome 9.9号染色体qh区域的额外常染色质带。
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The gene for cystathionine beta-synthase (CBS) maps to the subtelomeric region on human chromosome 21q and to proximal mouse chromosome 17.
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10
No significant effect of monosomy for distal 21q22.3 on the Down syndrome phenotype in "mirror" duplications of chromosome 21.21号染色体“镜像”重复中21q22.3远端单体性对唐氏综合征表型无显著影响。
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Pericentric inversions of human chromosomes 9 and 10.人类9号和10号染色体的臂间倒位
Am J Hum Genet. 1974 Nov;26(6):746-66.
5
Trisomy 21 and superoxide dismutase-1 (IPO-A). Tentative localization of sub-band 21Q22.1.21三体与超氧化物歧化酶-1(IPO-A)。21q22.1亚带的初步定位。
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Partial trisomy 21. Further evidence that trisomy of band 21q22 is essential for Down's phenotype.21号染色体部分三体。进一步证明21q22带的三体对于唐氏综合征表型至关重要。
Hum Genet. 1977 Aug 31;38(1):15-23. doi: 10.1007/BF00295803.
7
An improved technique for selective silver staining of nucleolar organizer regions in human chromosomes.一种改进的人类染色体核仁组织区选择性银染技术。
Hum Genet. 1976 Oct 28;34(2):199-206. doi: 10.1007/BF00278889.