Neurobehavioral effects of the fragile X premutation in adult women: a controlled study - PubMed (original) (raw)

Neurobehavioral effects of the fragile X premutation in adult women: a controlled study

A L Reiss et al. Am J Hum Genet. 1993 May.

Abstract

Although previous studies have suggested that the fragile X premutation (fra [X] pM) does not cause deleterious effects, methodological constraints have prevented more definitive conclusions from being reached. In this report, we describe the neuropsychiatric and cognitive-neuropsychological status of 34 adult women with the fra (X) pM, as compared with a well-matched control group of 41 mothers of fra (X)-negative children with developmental disability. The results indicate that there are no meaningful differences between adult women with the fra (X) pM and control subjects with respect to cognitive abilities or profile, neuropsychological function, psychiatric diagnoses or symptoms, and self-rated personality profile. No measure for either group showed evidence of functioning outside the normal range except for a high lifetime prevalence of major depression in both groups. Additional exploratory analyses within the fra (X) group showed no significant effect of either the size of the fra (X) insert or X chromosome inactivation pattern in leukocytes, on any measure of neurobehavioral function. These findings provide additional information to professionals providing genetic counseling to, and assessment of, fra (X) families.

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