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Fetal intestinal disaccharidases in human amniotic fluid. 1976

M Potier, and S B Melançon, and L Dallaire

Based on data from two human fetuses, a correlation exists between amniotic fluid and intestinal disaccharidase activities suggesting that the fetal intestine is the source of these amniotic fluid enzymes. Intestinal disaccharides are apparently released into the amniotic cavity by fetal defecation. As indicated by the drop of disaccharidase activities in amniotic fluid at 22 weeks gestation, defecation stops at this period of gestation.

UI MeSH Term Description Entries
D007422 Intestines The section of the alimentary canal from the STOMACH to the ANAL CANAL. It includes the LARGE INTESTINE and SMALL INTESTINE. Intestine
D008470 Meconium The thick green-to-black mucilaginous material found in the intestines of a full-term fetus. It consists of secretions of the INTESTINAL GLANDS; BILE PIGMENTS; FATTY ACIDS; AMNIOTIC FLUID; and intrauterine debris. It constitutes the first stools passed by a newborn. Meconiums
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D004187 Disaccharides Oligosaccharides containing two monosaccharide units linked by a glycosidic bond. Disaccharide
D005260 Female Females
D005333 Fetus The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN. Fetal Structures,Fetal Tissue,Fetuses,Mummified Fetus,Retained Fetus,Fetal Structure,Fetal Tissues,Fetus, Mummified,Fetus, Retained,Structure, Fetal,Structures, Fetal,Tissue, Fetal,Tissues, Fetal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000653 Amniotic Fluid A clear, yellowish liquid that envelopes the FETUS inside the sac of AMNION. In the first trimester, it is likely a transudate of maternal or fetal plasma. In the second trimester, amniotic fluid derives primarily from fetal lung and kidney. Cells or substances in this fluid can be removed for prenatal diagnostic tests (AMNIOCENTESIS). Amniotic Fluid Index,Amniotic Fluid Indices,Amniotic Fluids,Fluid Index, Amniotic,Fluid Indices, Amniotic,Fluid, Amniotic,Fluids, Amniotic,Index, Amniotic Fluid,Indices, Amniotic Fluid
D013393 Sucrase Digestive enzyme secreted in the INTESTINES. It catalyzes hydrolysis of SUCROSE to FRUCTOSE and GLUCOSE. Mutansucrase,Sucrose alpha-D-Glucohydrolase,Sucrose alpha D Glucohydrolase,alpha-D-Glucohydrolase, Sucrose
D014198 Trehalase An enzyme that catalyzes the conversion of alpha,alpha-trehalose and water to D-glucose. EC 3.2.1.28.

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