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Collagen, elastin and sugar content in primary varicose veins.

The collagen, elastin and total sugar content was evaluated in 32 samples of saphenous varicose veins and in 34 controls. A significantly lower collagen and elastin content was found in the varicose samples. In addition, the total sugars and the soluble non-scleroproteins were found to be increased in varicose samples. The results are more significant when expressed as mg per unit surface of endothelium. Our findings support the hypothesis that the decrease in collagen and elastin content is a primary rather than a secondary change.