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Related Experiment Videos

Tissue levels of ascorbic acid during rat gestation

C C Kratzing, J D Kelly

    International Journal for Vitamin and Nutrition Research. Internationale Zeitschrift Fur Vitamin- Und Ernahrungsforschung. Journal International De Vitaminologie Et De Nutrition
    |January 1, 1982
    PubMed
    Summary
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    During pregnancy, maternal rats experienced a significant drop in ascorbic acid (vitamin C) in key organs. However, fetal development saw increasing ascorbic acid levels, especially in the lungs, surpassing maternal levels by birth.

    Area of Science:

    • Biochemistry
    • Developmental Biology
    • Nutritional Science

    Background:

    • Ascorbic acid (vitamin C) is crucial for numerous physiological processes.
    • Pregnancy involves dynamic physiological changes that can impact nutrient status.
    • Understanding ascorbic acid dynamics during gestation is vital for maternal and fetal health.

    Purpose of the Study:

    • To investigate the changes in ascorbic acid concentration in maternal and fetal tissues throughout rat gestation.
    • To compare ascorbic acid levels between maternal and fetal organs at different gestational stages.

    Main Methods:

    • Tissue samples from maternal rat lung, liver, kidney, and small intestine were collected at various gestational points.
    • Ascorbic acid levels in these tissues were quantified.

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  • Fetal lung and liver tissues were analyzed for ascorbic acid concentration on the 18th day of gestation and near birth.

    • Main Results:

    • Maternal lung, liver, kidney, and small intestine showed a decrease of up to 40% in ascorbic acid by day 15 of gestation.
    • From day 15 to term, maternal tissue ascorbic acid increased by 30-60%.
    • Fetal lung ascorbic acid concentration doubled by day 18 and exceeded maternal levels by 30% near birth; fetal liver showed a minor increase, with levels 50% higher than maternal near birth.

    Conclusions:

    • Pregnancy significantly alters ascorbic acid distribution between mother and fetus in rats.
    • Fetal lung demonstrates a marked accumulation of ascorbic acid, particularly in late gestation, suggesting a critical role in development.
    • Ascorbic acid levels in fetal organs surpass maternal levels near term, highlighting differential nutrient prioritization.