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自Lubs(1969),Girand 等(1976)和Harvey 等(1977),在一些X -连锁智力低下的患者中发现X 染色体长臂上有一个脆性位点以来,脆性X 染色体(fragile Xchromosome)日益受到各国学者的重视。本文拟对脆性X 染色体及其临床意义作一概要综述。
Fragile X chromosomes have been increasingly recognized by Lubs (1969), Girand et al. (1976) and Harvey et al. (1977) when a fragile site on the long arm of the X chromosome was found in some patients with X - linked mental retardation The importance of scholars in various countries. This article intends to make an overview of the clinical significance of the fragile X chromosome.