Vasodilator activity of human alpha-calcitonin gene-related peptide in the feline mesenteric vascular bed. 1988

H L Lippton, and K Lepak, and G Cohen, and P Roland, and P J Kadowitz, and A L Hyman
Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana 70112.

Human alpha-calcitonin gene-related peptide (CGRP) is a substance immunohistochemically present in a number of organ systems; however, the biologic significance of this peptide is uncertain. The present study was undertaken to investigate the effects of CGRP in the feline mesenteric vascular bed under conditions of controlled blood flow. Bolus injections of CGRP decreased mesenteric perfusion pressure in a dose-related fashion. When compared with nitroglycerin, CGRP possesses markedly greater vasodilator activity in the intestinal vascular bed of the cat. Because circulating levels of CGRP have been identified, the present data suggest CGRP may play a role in the regulation of systemic vasomotor tone and regional hemodynamics, as well as involve altered calcium metabolism seen with other calcium-regulating hormones in hypertensive states.

UI MeSH Term Description Entries
D007269 Injections, Intra-Arterial Delivery of drugs into an artery. Injections, Intraarterial,Intra-Arterial Injections,Intraarterial Injections,Injection, Intra-Arterial,Injection, Intraarterial,Injections, Intra Arterial,Intra Arterial Injections,Intra-Arterial Injection,Intraarterial Injection
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009479 Neuropeptides Peptides released by NEURONS as intercellular messengers. Many neuropeptides are also hormones released by non-neuronal cells. Neuropeptide
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002415 Cats The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801) Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D005996 Nitroglycerin A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives. Glyceryl Trinitrate,Anginine,Dynamite,Gilustenon,Nitrangin,Nitro-Bid,Nitro-Dur,Nitrocard,Nitroderm,Nitroderm TTS,Nitroglyn,Nitrol,Nitrolan,Nitrong,Nitrospan,Nitrostat,Perlinganit,Susadrin,Sustac,Sustak,Sustonit,Transderm Nitro,Tridil,Trinitrin,Trinitrolong,Nitro Bid,Nitro Dur,NitroBid,NitroDur,Trinitrate, Glyceryl
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013152 Splanchnic Circulation The circulation of blood through the BLOOD VESSELS supplying the abdominal VISCERA. Mesenteric Circulation,Circulation, Mesenteric,Circulation, Splanchnic,Circulations, Mesenteric,Circulations, Splanchnic,Mesenteric Circulations,Splanchnic Circulations

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