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Drug prophylaxis in atherosclerosis.

|January 1, 1987

Summary

This summary is machine-generated.

Heparin can reverse atherosclerosis in rabbits. Inhaled heparin achieves high arterial concentrations without causing bleeding, unlike other administration methods.

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Area of Science:

Pharmacology
Cardiovascular Science
Atherosclerosis Research

Background:

Heparin and heparinoids can reverse atherosclerosis in rabbits fed a high-fat diet.
Traditional administration routes cause anticoagulation and bleeding, limiting clinical use.
Heparinoids have demonstrated toxicity with long-term use.

Purpose of the Study:

To investigate an alternative administration route for heparin to avoid systemic anticoagulation.
To assess the efficacy and safety of inhaled heparin for treating atherosclerosis.

Main Methods:

Rabbits on a high-cholesterol/fat diet were treated with inhaled heparin.
Endothelial and plasma concentrations of heparin were measured.
Long-term toxicity of heparin and heparinoids was evaluated.

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Main Results:

Inhaled heparin achieved high concentrations in the endothelium.
Plasma concentrations remained low, minimizing anticoagulation and bleeding risks.
Long-term heparin administration showed no demonstrated toxicity.

Conclusions:

Inhaled heparin offers a potential therapeutic strategy for reversing atherosclerosis.
This method bypasses the bleeding risks associated with conventional heparin administration.
Heparin appears safer than heparinoids for long-term atherosclerosis management.