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Effect of maternal protein deficiency on intrauterine development of small intestine with special reference to
Insights
Maternal protein deficiency impairs intestinal alkaline phosphatase development in newborn rats, affecting enzyme activity and enterocyte size. This highlights the critical role of maternal nutrition in fetal development.
Area of Science:
- Biochemistry
- Developmental Biology
- Physiology
Background:
- Intestinal alkaline phosphatase (IAP) is crucial for nutrient absorption and gut health.
- Prenatal development is sensitive to maternal nutritional status.
- Understanding IAP's developmental trajectory is key to assessing infant gut health.
Purpose of the Study:
- To investigate the impact of maternal protein deficiency on rat intestinal alkaline phosphatase activity and morphology during late gestation and early postnatal life.
- To determine if intrauterine growth retardation (IUGR) affects IAP development.
Main Methods:
- Assessed alkaline phosphatase activity in fetal and newborn rat intestines.
- Utilized polyacrylamide gel electrophoresis to analyze enzyme homogeneity.
- Examined enterocyte and nuclear size in the duodenum of pups from protein-deficient and control mothers.
Main Results:
- Rat fetal IAP activity near term was higher than in newborns.
- Protein deficiency in mothers led to a developmental setback in duodenal IAP.
- Electrophoresis confirmed enzyme homogeneity between fetus and newborn.
- Severe IUGR correlated with smaller enterocytes and nuclei.
Conclusions:
- Maternal protein deficiency disrupts normal intestinal alkaline phosphatase development in rats.
- IUGR associated with protein deficiency impacts duodenal enterocyte morphology.
- Adequate maternal nutrition is essential for proper fetal intestinal development and enzyme maturation.
Abstract:
Rat intestinal alkaline phosphatase activity was found to be greater in the fetus near term than in the progeny at birth. A set back in the orderly development of the enzyme was observed in the duodenum of pups born to protein-deficient mothers. Electrophoretic studies on polyacrylamide gel showed homogeneity of the enzyme in fetus and newborn pups. Severe intrauterine growth retardation was associated with reduced size of the enterocytes and their nuclei.