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Ann Neurol. 1988 Sep;24(3):451-3.

Hexosaminidase A deficiency manifesting as spinal muscular atrophy of late onset.

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  • 1Department of Neurology, Chaim Sheba Medical Center, Tel Hashomer, Israel.

Abstract

Proximal lower limb weakness and fasciculations were the only clinical manifestations of hexosaminidase A (Hex A) deficiency in a 39-year-old woman. Hex A activity in serum and leukocytes was 0 to 4% by standard heat inactivation fluorogenic substrate methods, and 5% when Hex A isoenzymes were fractionated by diethylaminoethanol cellulose chromatography. Computed tomography of the brain showed cerebellar atrophy. We suggest that Hex A activity studies be done in patients with typical as well as atypical spinal muscular atrophy.

PMID:
2976262
[PubMed - indexed for MEDLINE]
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