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Proteolipid protein 1 gene mutation in nine patients with Pelizaeus-Merzbacher disease
Wang Jing-min1; Wu Ye1; Wang Hui-fang2; Deng Yan-hua2; Yang Yan-ling1; Qin Jiong1; Li Xin-yi2; Wu Xi-ru1; Jiang Yu-wu1
关键词Pelizaeus-Merzbacher disease proteolipid protein 1 gene multiplex ligation-dependent probe amplification mutation
刊名CHINESE MEDICAL JOURNAL
2008-09-05
121期:17页:1638-1642
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Medicine, General & Internal
资助者Science and Technology Ministry of China ; Scientific Research Foundation for Returned Overseas Chinese Scholars of State Education Ministry of China ; NIH/FIC ; Science and Technology Ministry of China ; Scientific Research Foundation for Returned Overseas Chinese Scholars of State Education Ministry of China ; NIH/FIC
研究领域[WOS]General & Internal Medicine
关键词[WOS]DEPENDENT PROBE AMPLIFICATION ; SPASTIC PARAPLEGIA TYPE-2 ; CENTRAL-NERVOUS-SYSTEM ; PROTEIN GENE ; MYELIN ; DUPLICATIONS ; PATHOGENESIS ; DISORDERS ; PCR
英文摘要

Background Pelizaeus-Merzbacher disease (PMD) is a rare X-linked recessive disorder with symptoms including nystagmus, impaired motor development, ataxia, and progressive spasticity. The proteolipid protein 1 (PLP1) gene is the only pathogenic gene of PMD. Duplication of the PLP1 gene is the most frequent gene defect, accounting for 50%-70% of PMD cases, whereas point mutations in the coding sequence or the splice sites account for 10%-25% of PMD cases. This study aimed to identify PLP1 mutations in nine unrelated Chinese patients (P1-9) with PMD, and 14 subjects from the family of patient 2 were also described.

Methods Genomic DNA was extracted from peripheral blood samples. Gene dosage was determined using the multiplex ligation-dependent probe amplification (MLPA). All 7 exons and exon-intron boundaries of the PLP1 gene were amplified and analyzed using direct DNA sequencing.

Results Of these nine patients, there were four transitional, four classical, and one connatal PMD according to their clinical and radiological presentations. PLP1 duplications were identified in patients 1-7 with PMD. Their mothers were PLP1 duplications carriers as well. Both duplication carriers and normal genotypes of PLP1 were identified in the family members of patient 2. A c.517C>T (p. P173S) hemizygous missense mutation in exon 4 was found in patient 8 with PMD, and his mother was shown to be a heterozygote of this mutation.

Conclusions We identified seven genomic duplications and one missense mutation (p. P173S) of the PLP1 gene in eight Chinese patients with PMD. This is the report about PLP1 mutations in PMD patients from the mainland of China.

语种英语
所属项目编号2007CB5119004 ; D43 TW06176
资助者Science and Technology Ministry of China ; Scientific Research Foundation for Returned Overseas Chinese Scholars of State Education Ministry of China ; NIH/FIC ; Science and Technology Ministry of China ; Scientific Research Foundation for Returned Overseas Chinese Scholars of State Education Ministry of China ; NIH/FIC
WOS记录号WOS:000259167200008
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/63776
专题北京大学第一临床医学院_儿科
作者单位1.Peking Univ, Dept Pediat, Hosp 1, Beijing 100034, Peoples R China
2.Shanxi Med Univ, Dept Neurol, Hosp 1, Taiyuan 030001, Shanxi, Peoples R China
推荐引用方式
GB/T 7714
Wang Jing-min,Wu Ye,Wang Hui-fang,et al. Proteolipid protein 1 gene mutation in nine patients with Pelizaeus-Merzbacher disease[J]. CHINESE MEDICAL JOURNAL,2008,121(17):1638-1642.
APA Wang Jing-min.,Wu Ye.,Wang Hui-fang.,Deng Yan-hua.,Yang Yan-ling.,...&Jiang Yu-wu.(2008).Proteolipid protein 1 gene mutation in nine patients with Pelizaeus-Merzbacher disease.CHINESE MEDICAL JOURNAL,121(17),1638-1642.
MLA Wang Jing-min,et al."Proteolipid protein 1 gene mutation in nine patients with Pelizaeus-Merzbacher disease".CHINESE MEDICAL JOURNAL 121.17(2008):1638-1642.
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