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Vanadium and diabetes

P Poucheret1, S Verma, M D Grynpas

  • 1Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada.

Molecular and Cellular Biochemistry
|November 21, 1998
PubMed
Summary
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Vanadium compounds effectively lower blood glucose in diabetic rats and reduce insulin needs. Organic vanadium, like BMOV, shows enhanced potency and reduced toxicity, offering therapeutic promise for diabetes management.

Area of Science:

  • Biochemistry
  • Pharmacology
  • Endocrinology

Background:

  • Vanadium compounds, including vanadyl sulfate, have demonstrated glucose-lowering effects in various diabetic animal models since 1985.
  • Studies show efficacy in streptozotocin (STZ)-induced diabetic rats, Zucker fatty rats, and Zucker diabetic fatty rats.
  • Vanadyl sulfate has also reduced insulin requirements in the BB rat model of insulin-dependent diabetes.

Purpose of the Study:

  • To evaluate the efficacy and safety of vanadium compounds as potential therapeutic agents for diabetes.
  • To explore the effectiveness of both inorganic and organic vanadium compounds.
  • To investigate the long-term effects and potential mechanisms of action of vanadium in diabetes.

Main Methods:

  • Administration of vanadyl sulfate and organic vanadium compounds (e.g., BMOV) to diabetic animal models via oral and intraperitoneal routes.

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  • Long-term toxicity studies (up to one year) in control and diabetic rats.
  • Assessment of blood glucose, cholesterol, and triglyceride levels.
  • Evaluation of insulin requirements in BB diabetic rats.
  • Investigation of vanadium's effects on food intake, bone strength, and architecture.

    • Main Results:

    • Vanadyl sulfate normalized elevated blood glucose in STZ diabetic rats and lowered glucose, cholesterol, and triglycerides in other models.
    • No significant toxicity was observed in long-term studies with vanadyl sulfate at effective doses.
    • Vanadyl sulfate reduced insulin requirements by up to 75% in BB diabetic rats.
    • Organic compound BMOV demonstrated 2-3 times greater potency and reduced toxicity compared to vanadyl sulfate.
    • Vanadium's effects were independent of food intake changes and did not negatively impact bone structure.

    Conclusions:

    • Vanadium compounds, particularly organic derivatives like BMOV, show significant potential as therapeutic agents for managing diabetes.
    • Vanadium effectively lowers hyperglycemia and reduces insulin dependency with a favorable safety profile in animal models.
    • Further investigation into the mechanism of action, including phosphatase inhibition, is warranted, and short-term clinical trials are promising.