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- W208420281 abstract "Arylsulfatase-A deficiency causes the neurodegenerative lysosomal storage disease metachromatic leukodystrophy. In the late-onset variant, schizophrenia-like psychosis is a frequent finding and sometimes given as the initial diagnosis. A mutant allele, pseudo-deficiency, causes deficient enzyme activity but no apparent clinical effect. It occurs at a high frequency and consists of two tightly-linked A{r_arrow}G transitions: one causing the loss of a glycosylation site (PDg); and one causing the loss of a polyadenylation signal (PDa). Since this gene was mapped to chromosome 22q13-qter, a region implicated in a potential linkage with schizophrenia, we hypothesized that this common mutation may be a predisposing genetic factor for schizophrenia. We studied a random sample of schizophrenic patients for possible increase in frequency of the pseudo-deficiency mutations and in multiplex families to verify if the mutations are linked to schizophrenia. Among 50 Caucasian patients identified through out-patient and in-patient clinics, the frequencies for the three alleles PDg + PDa together, PDg or PDa alone were 11%, 5% and 0%, respectively. The corresponding frequencies among 100 Caucasian controls were 7.5%, 6% and 0%, respectively, the differences between the patients and controls being insignificant ({chi}{sup 2}tests: 0.10" @default.
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- W208420281 date "1994-09-01" @default.
- W208420281 modified "2023-09-27" @default.
- W208420281 title "Lack of association between the pseudo deficiency mutation in the arylsulfatase A gene on chromosome 22 with schizophrenia" @default.
- W208420281 hasPublicationYear "1994" @default.
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