Endoglin and activin receptor-like-kinase 1 are co-expressed in the distal vessels of the lung: implications for two familial vascular dysplasias, HHT and PAH.

Abstract excerpt

Arteriovenous malformations (AVMs) are direct connections between arteries and veins associated with loss of the intervening capillary bed. In the lungs, pulmonary AVMs can result in right to left shunts and severe cyanosis and dyspnoea. However, the cellular and molecular mechanisms underlying AVM formation are poorly understood. One important clue comes from the fact that pulmonary AVMs frequently occur in the...

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