Biomaterial Database

Interplay between nitric oxide and CGRP by capsaicin in isolated guinea-pig heart. 1999

G Oroszi, and Z Szilvassy, and J Nemeth, and A Tosaki, and J Szolcsanyi

Department of Pharmacology and Pharmacotherapy, Medical University of Pecs and Neuropharmacology Research Group of the Hungarian Academy of Sciences, Pecs, H-7643, Hungary.

Capsaicin at a concentration of 10(-7)m induced a significant increase in heart rate and increased coronary flow in isolated Langendorff-perfused guinea-pig hearts. This effect was completely blocked by 30 microm of N(omega)-nitro-L-arginine methyl ester (L-NAME), an inhibitor of nitric oxide synthase. Additional incubation with 3 m m L-Arg antagonized the inhibitory effect of L-NAME. In the presence of 1 microm of a human calcitonin gene-related peptide fragment (hCGRP 8-37), a CGRP-receptor antagonist, L-Arg was without effect. We conclude that a capsaicin-induced increase in coronary flow and heart rate is dependent from an interplay between CGRP and NO in guinea-pig hearts. 1999 Academic Press.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D002211	Capsaicin	An alkylamide found in CAPSICUM that acts at TRPV CATION CHANNELS.	8-Methyl-N-Vanillyl-6-Nonenamide,Antiphlogistine Rub A-535 Capsaicin,Axsain,Capsaicine,Capsicum Farmaya,Capsidol,Capsin,Capzasin,Gelcen,Katrum,NGX-4010,Zacin,Zostrix,8 Methyl N Vanillyl 6 Nonenamide,NGX 4010,NGX4010
D003326	Coronary Circulation	The circulation of blood through the CORONARY VESSELS of the HEART.	Circulation, Coronary
D004791	Enzyme Inhibitors	Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.	Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006321	Heart	The hollow, muscular organ that maintains the circulation of the blood.	Hearts
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077221	Calcitonin Gene-Related Peptide Receptor Antagonists	Pharmacologic agents that block NOCICEPTIVE PAIN signaling from CALCITONIN GENE-RELATED PEPTIDE RECEPTORS. They may be useful for the treatment of pain associated with MIGRAINE DISORDERS and OSTEOARTHRITIS.	CGRP Receptor Antagonist,CGRP-R Inhibitor,CGRP-R Inhibitors,Calcitonin Gene-Related Peptide Receptor Antagonist,GEPANT,CGRP Receptor Antagonists,GEPANTS,Antagonist, CGRP Receptor,Antagonists, CGRP Receptor,CGRP R Inhibitor,CGRP R Inhibitors,Calcitonin Gene Related Peptide Receptor Antagonist,Calcitonin Gene Related Peptide Receptor Antagonists,Inhibitor, CGRP-R,Inhibitors, CGRP-R,Receptor Antagonist, CGRP,Receptor Antagonists, CGRP
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