title: N-acetyl-beta-D-glucosaminidase (NAG) levels in amniotic fluid or urine in prenatal and postnatal life.
abstract: The isoenzyme pattern of N-acetyl-beta-D-glucosaminidase (NAG) was determined in the amniotic fluid of 75 women undergoing amniocentesis for genetic indications. In the amniotic fluid and in the newborn's urine the NAG was completely different from that in adult urine, indicating the presence of a fetal isoenzymatic form also present in the first stage of life.
mesh_terms: D000118:Acetylglucosaminidase / Q000378:metabolism* / Q000652:urine; D000375:Aging; D000653:Amniotic Fluid / Q000201:enzymology*; D005260:Female; D005333:Fetus / Q000201:enzymology*; D005865:Gestational Age; D006596:Hexosaminidases / Q000378:metabolism*; D006801:Humans; D007231:Infant, Newborn / Q000652:urine*; D007527:Isoenzymes / Q000378:metabolism* / Q000652:urine; D011247:Pregnancy
chemical_list: D007527:Isoenzymes; D006596:Hexosaminidases; D000118:Acetylglucosaminidase