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Related Experiment Videos

Cholestasis: Pump failure, microvilli defect, or both?

S Erlinger

    Lancet (London, England)
    |March 11, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Cholestasis, a bile flow obstruction, can stem from impaired solute transport or altered microvilli in bile canaliculi. This study investigates both mechanisms using experimental models.

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    Area of Science:

    • Hepatology and Gastroenterology
    • Cell Biology
    • Molecular Physiology

    Background:

    • Cholestasis impairs bile flow, potentially due to issues with solute transport systems or bile canaliculi structure.
    • The Na+ and K+-ATP-ase system is crucial for solute transport into bile canaliculi.
    • Microfilament dysfunction can alter the structure of canalicular microvilli.

    Purpose of the Study:

    • To investigate the mechanisms underlying cholestasis.
    • To determine if disturbances in solute transport and/or canalicular microvilli contribute to cholestasis.
    • To analyze experimental cholestasis models to understand these mechanisms.

    Main Methods:

    • Induction of experimental cholestasis using oestrogen.
    • Induction of experimental cholestasis using cytochalasin-B.

    Related Experiment Videos

  • Induction of experimental cholestasis using phalloidin.

    • Main Results:

    • Oestrogen, cytochalasin-B, and phalloidin induced experimental cholestasis.
    • Analysis revealed disturbances in solute transport systems and/or canalicular microvilli in cholestasis models.
    • Evidence suggests both impaired solute transport and altered microvilli contribute to cholestasis.

    Conclusions:

    • Cholestasis can arise from disruptions in bile canaliculi solute transport.
    • Cholestasis can also result from alterations in canalicular microvilli structure.
    • Experimental models demonstrate that both mechanisms are operative in cholestasis.