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Fetal intestinal disaccharidases in human amniotic fluid
Biomedicine / [Publiee Pour L'A.A.I.C.I.G.]
|July 1, 1976
Summary
Amniotic fluid disaccharidase activity originates from the fetal intestine, released via defecation. This process ceases around 22 weeks of gestation, as evidenced by a significant drop in enzyme levels.
Area of Science:
- Perinatology
- Developmental Biology
- Gastroenterology
Background:
- Amniotic fluid composition provides insights into fetal development.
- Disaccharidases are enzymes crucial for carbohydrate digestion.
Purpose of the Study:
- To investigate the source of disaccharidase activity in amniotic fluid.
- To determine the relationship between fetal intestinal function and amniotic fluid enzyme levels.
Main Methods:
- Analysis of amniotic fluid samples from human fetuses.
- Measurement of disaccharidase activities in amniotic fluid.
Main Results:
- A positive correlation was observed between amniotic fluid and fetal intestinal disaccharidase activities.
- Fetal defecation was identified as the likely mechanism for enzyme release into the amniotic cavity.
- A marked decrease in amniotic fluid disaccharidase activity was noted at 22 weeks gestation, indicating the cessation of defecation.
Conclusions:
- The fetal intestine is the primary source of disaccharidases found in amniotic fluid.
- Fetal defecation is a significant contributor to amniotic fluid enzyme content during gestation.
- The 22-week gestation mark represents a critical developmental period for the cessation of fetal defecation.