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Related Experiment Videos

Endogenous digitalis-like natriuretic factors.

S W Graves, G H Williams

    Annual Review of Medicine
    |January 1, 1987
    PubMed
    Summary

    Endogenous digitalis-like compounds, which interact with the digitalis receptor, increase with salt loading. These factors may play a role in hypertension and fluid retention disorders.

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    Area of Science:

    • Endocrinology and Physiology
    • Cardiovascular Research
    • Nephrology

    Background:

    • Endogenous compounds interacting with the digitalis receptor of Na,K-ATPase have been identified.
    • Circulating levels of these digitalis-like compounds rise with fluid or salt loading.
    • These factors are implicated in conditions with fluid and salt retention, including hypertension and renal failure.

    Purpose of the Study:

    • To explore the role of endogenous digitalis-like compounds in physiological and pathological conditions.
    • To investigate the link between these compounds and diseases characterized by salt retention.
    • To assess the potential contribution of these factors to essential hypertension.

    Main Methods:

    • Measurement of circulating digitalis-like compounds.
    • Analysis of compound levels in response to fluid and salt loading.
    • Review of existing literature on digitalis-like factors in various diseases.

    Main Results:

    • Digitalis-like compounds increase in response to fluid or salt loading.
    • These compounds are associated with conditions like renal failure, liver disease, hypertension, and preeclampsia.
    • Identified compounds with digitalis-like activity are not definitively the natural ligand for the digitalis receptor and their direct link to hypertension remains under investigation.

    Conclusions:

    • Digitalis-like factors are involved in regulating fluid and salt balance.
    • These endogenous compounds may play a significant role in the pathophysiology of essential hypertension.
    • Further research is needed to identify the specific natural ligand and its precise role in hypertension.

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