Fragile X carrier screening and FMR1 allele distribution in the Japanese population.


Fragile X syndrome (FXS), which is the most common form of familial mental retardation, is caused by the expansion of the CGG repeat in the FMR1 gene on the X chromosome. Previous studies have suggested that as compared to other populations, Japanese have a lower prevalence of FXS. In addition, in the normal population, there are no carriers who have the… (More)
DOI: 10.1016/j.braindev.2008.12.015


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