Vascular smooth muscle, endothelial regulation and effects of aspirin in hypertension

Frontiers in Bioscience : a Journal and Virtual Library
M A Rahmani

Abstract

Dysfunction of vascular smooth muscle (VSM) is at the center of occlusive disorders of the cardiovascular system such as hypertension, atherosclerosis, coronary artery disease and hypoxia. In addition to circulating biogenic amines and various neurotransmitters originating from the central nervous system and endocrine system, various autocoids of arachidonic acid metabolism in the blood as well as in the endothelium play an important regulatory role in the maintenance of the tone and the contractile function of VSM. A monolayer of endothelial cells lining the heart and large blood vessels is responsible for producing and releasing both endocrine and paracrine substances such as endothelins, nitric oxide, prostaglandins and prostacyclins. Aspirin, (acetylsalicylic acid/ASA) an ancient remedy against fever and pain, is emerging as an effective drug not only against occlusive disorders but also against various cancers and the AIDs virus. During pregnancy induced hypertension (PIH) and in occlusive disorders, aspirin provides relief through inhibition of cyclooxygenase, an enzyme required for the metabolism of arachidonic acid to produce prostaglandins and prostacyclins in platelets and in endothelial cells. Because of its unique m...Continue Reading

Citations

Jul 8, 2017·Revista Portuguesa De Cardiologia : Orgão Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology·Ana Catarina CostaTeresa Sousa

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