Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics · 2014
[Analysis of phenotype and genotype in a family with late infantile metachromatic leukodystrophy].
Клинический случайСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Yang Juan, Cao Jiqing, Li Yaqin, Zheng Hui, Li Jing, Liang Yingyin, Liu Zhenhua, Wang Liqin, Zhang Cheng
Аннотация
OBJECTIVE: To study genotype-phenotype correlation of a family with late infantile metachromatic leukodystrophy(MLD).
METHODS: Clinical data were collected and ARSA gene was tested by PCR and sequencing in a pedigree.
RESULTS: The male proband onset with walking dysfunction at 19 months, arylsulfatase A activity of leucocyte from his peripheral blood was 20.2 nmol/mg.17h, and his cranial MRI showed wildly symmetrical demyelination. Homozygosis for novel c.622delC (p.His208Metfs46X) in exon 3 of ARSA gene was identified in proband, and heterozygous for the same mutation in parents and grandma of the proband.
CONCLUSION: Late infantile metachromatic leukodystrophy is characterized by rapid and progressive regression of neuropsychiatric and motor development. There is a significant correlation between the mutation of c.622delC(p.His208Metfs*46) in the ARSA gene and the phenotype presenting as O/O patients.
METHODS: Clinical data were collected and ARSA gene was tested by PCR and sequencing in a pedigree.
RESULTS: The male proband onset with walking dysfunction at 19 months, arylsulfatase A activity of leucocyte from his peripheral blood was 20.2 nmol/mg.17h, and his cranial MRI showed wildly symmetrical demyelination. Homozygosis for novel c.622delC (p.His208Metfs46X) in exon 3 of ARSA gene was identified in proband, and heterozygous for the same mutation in parents and grandma of the proband.
CONCLUSION: Late infantile metachromatic leukodystrophy is characterized by rapid and progressive regression of neuropsychiatric and motor development. There is a significant correlation between the mutation of c.622delC(p.His208Metfs*46) in the ARSA gene and the phenotype presenting as O/O patients.