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Clin Physiol Biochem. 1986;4(2):143-9.

Studies on vascular permeability in hypertension: action of anthocyanosides.


The initial phase of renal hypertension induced by ligature of the abdominal aorta was accompanied by a transient increase in vascular permeability. This permeability increase has not the same intensity in all parts of the organism: it is greater in the skin and in the aorta wall than in the brain vessels. Treatment of rats with a flavonoid-type drug (anthocyanosides of Vaccinium myrtillus) for 12 days before the induction of hypertension kept the blood-brain barrier permeability normal and limited the increase in vascular permeability in the skin and the aorta wall. As previously demonstrated, the collagens of the blood vessel walls play an important role in the control of vascular permeability. Interaction of these collagens with the drug may be partly responsible for the protection against the permeability-increasing action of hypertension observed in the treated animals.

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