Acid hydrolases in amniotic fluid and chorionic villi at various stages of pregnancy |
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Authors: | B Hultberg S Sjöblad B Gustavii |
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Institution: | Department of Clinical Chemistry and Department of Obstetrics and Gynecology, University Hospital, S-221 85 Lund Sweden |
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Abstract: | A study was made at various stages of pregnancy of five acid hydrolases which occur in amniotic fluid and chorionic villi and which are relevant to serious storage disorders.In amniotic fluid β-galactosidase and α-mannosidase decreased moderately towards term, while β-glucosidase decreased markedly. N-Acetyl-β-glucosaminidase and β-glucuronidase were relatively unchanged.In chorionic villi N-acetyl-β-glucosaminidase, β-galactosidase, and α-mannosidase were substantially decreased towards term, while β-glucosidase was unchanged and β-glucuronidase markedly increased.In both amniotic fluid and chorionic villi the enzyme pattern was approximately the same as that found in liver in a previous study.The findings suggest that these enzyme assays might be useful in the diagnosis of inborn errors prenatally by using amniotic fluid, and early postnatally by using chorionic villi. |
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