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Related Experiment Videos

Changes in phosphorus distribution during total parenteral nutrition.

Y Mashima, M Ogawa, Y Aoki

    JPEN. Journal of Parenteral and Enteral Nutrition
    |May 1, 1981
    PubMed
    Summary

    Hypophosphatemia during total parenteral nutrition (TPN) involves phosphate shifts. Muscle phosphate decreased, while liver phosphate increased, highlighting tissue distribution

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    Magnocellular neurosecretory neurons with ferritin-like immunoreactivity in the hypothalamic supraoptic and paraventricular nuclei of the rat.

    Brain research·1992

    Area of Science:

    • Nutritional biochemistry
    • Metabolic research

    Background:

    • Hypophosphatemia is a potential complication of total parenteral nutrition (TPN).
    • Understanding phosphate (P) distribution is crucial for managing TPN.

    Purpose of the Study:

    • To investigate the mechanism of hypophosphatemia during TPN.
    • To examine changes in liver and muscle phosphate content in rats receiving TPN.

    Main Methods:

    • 39 Sprague Dawley rats were divided into 5 groups, including starved and TPN-supported groups with varying starvation durations and phosphate intake.
    • Phosphate content in liver and muscle tissues was measured colorimetrically.

    Main Results:

    • Muscle phosphate content decreased in rats receiving TPN with low phosphate intake after depletion.

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  • Liver phosphate content consistently increased in all TPN groups.
  • Increased phosphate intake helped preserve muscle phosphate levels.

    • Conclusions:

    • Phosphate redistribution between tissues occurs during TPN, impacting serum levels.
    • Evaluating adequate phosphate requirements for TPN necessitates considering tissue phosphate distribution, not just serum inorganic phosphate.