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Folates in human serum.

K Ratanasthien, J A Blair, R J Leeming

    Journal of Clinical Pathology
    |November 1, 1974
    PubMed
    Summary
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    Serum folate levels can change unpredictably in certain diseases, sometimes increasing despite overall folate deficiency. Folate analogues administered orally impact the body's folate pool distinctly, with 10-formyltetrahydrofolate levels remaining stable in healthy individuals.

    Area of Science:

    • Biochemistry
    • Nutritional Science
    • Clinical Medicine

    Background:

    • Total folate levels are often decreased in various diseases.
    • Constituent serum folates can be altered, and sometimes elevated, in these disease states.
    • Understanding folate metabolism is crucial for managing related health conditions.

    Purpose of the Study:

    • To investigate how orally administered folate analogues influence the serum folate pool.
    • To examine the stability of specific folate compounds, such as 10-formyltetrahydrofolate, in normal physiological conditions.

    Main Methods:

    • Absorption experiments involving oral administration of folate analogues.
    • Analysis of constituent serum folate levels in disease states.
    • Monitoring of 10-formyltetrahydrofolate levels in healthy subjects.

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    Main Results:

    • Orally administered folate analogues differentially affect the body's folate pool.
    • Altered and sometimes elevated serum folate levels were observed in diseases associated with decreased total folate.
    • The stability of 10-formyltetrahydrofolate was demonstrated in normal subjects.

    Conclusions:

    • Different folate analogues have distinct impacts on folate metabolism.
    • Serum folate patterns in disease are complex and warrant further investigation.
    • 10-formyltetrahydrofolate appears to be a stable folate metabolite in healthy individuals.