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Related Experiment Videos

Protection of hypoxia-induced ATP decrease in endothelial cells by ginkgo biloba extract and bilobalide

D Janssens1, C Michiels, E Delaive

  • 1Laboratoire de Biochimie Cellulaire, Facultés Universitaires Notre Dame de la Paix, Namur, Belgium.

Biochemical Pharmacology
|September 28, 1995
PubMed
Summary
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EGb 761 and bilobalide protect endothelial cells from hypoxia by preserving mitochondrial function and delaying glycolysis activation, maintaining ATP levels during ischemic conditions.

Area of Science:

  • Cell Biology
  • Biochemistry
  • Pharmacology

Background:

  • Endothelial cells are crucial at the blood-tissue interface and vulnerable to blood changes.
  • Hypoxia (ischemia mimic) triggers endothelial cell activation, ATP depletion, and inflammation.
  • EGb 761 and bilobalide are investigated for their protective effects on endothelial cells during hypoxia.

Purpose of the Study:

  • To investigate the protective mechanisms of EGb 761 and bilobalide against hypoxia-induced endothelial cell dysfunction.
  • To determine the impact of these compounds on cellular ATP levels, glycolysis, and mitochondrial function.

Main Methods:

  • In vitro endothelial cell cultures subjected to hypoxia.
  • Measurement of ATP content, glucose transport, and lactate production.

Related Experiment Videos

  • Assessment of mitochondrial respiratory control ratio in isolated rat liver mitochondria.

    • Main Results:

    • EGb 761 and bilobalide inhibited hypoxia-induced ATP decrease and delayed glycolysis activation.
    • Bilobalide enhanced glucose transport under normoxia; both compounds affected lactate production over time.
    • EGb 761 and bilobalide improved mitochondrial respiratory control ratio in vivo.

    Conclusions:

    • EGb 761 and bilobalide protect endothelial cells during hypoxia by preserving mitochondrial respiratory activity.
    • These compounds maintain cellular ATP levels, reducing reliance on glycolysis.
    • The findings suggest a therapeutic potential for EGb 761 and bilobalide in conditions involving ischemia and endothelial dysfunction.