Biomaterial Database

Pharmacological actions of leukotrienes C4, D4 and E4 on guinea pig isolated taenia caecum as a preparation to study leukotrienes. 1986

I Takayanagi, and M Ohashi, and T Sato

The contractile effects of leukotrienes (LTs) C4, D4 and E4 were studied in guinea pigs isolated taenia caecum. LTs C4, D4 and E4 contracted taenia caecum at low concentrations in a concentration-dependent manner. The response to LTs was not influenced by a gamma-glutamyl transpeptidase inhibitor (L-serine borate), aminopeptidase inhibitor (L-cysteine) or cyclooxygenase inhibitor (flurbiprofen), suggesting that LTC4 and LTD4 were not metabolized or metabolized only slightly in the guinea pig isolated taenia caecum, and that each of the LTs showed the direct contractile action. Furthermore, FPL55712 antagonized the response to LTD4 and LTC4 competitively but not that to LTE4. These results suggested that the guinea pig isolated taenia caecum is useful preparation to study the pharmacological actions of LTs.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009130	Muscle, Smooth	Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)	Muscle, Involuntary,Smooth Muscle,Involuntary Muscle,Involuntary Muscles,Muscles, Involuntary,Muscles, Smooth,Smooth Muscles
D001881	Borates	Inorganic or organic salts and esters of boric acid.	Borate
D002432	Cecum	The blind sac or outpouching area of the LARGE INTESTINE that is below the entrance of the SMALL INTESTINE. It has a worm-like extension, the vermiform APPENDIX.	Cecums
D002867	Chromones		1,4-Benzopyrones,Chromone,1,4 Benzopyrones
D005480	Flurbiprofen	An anti-inflammatory analgesic and antipyretic of the phenylalkynoic acid series. It has been shown to reduce bone resorption in periodontal disease by inhibiting CARBONIC ANHYDRASE.	2-Fluoro-alpha-methyl-(1,1'-biphenyl)-4-acetic Acid,Ansaid,Apo-Flurbiprofen,BTS-18322,Cebutid,Dobrofen,E-7869,Flubiprofen,Flugalin,Flurbiprofen Sodium,Fluriproben,Froben,Froben SR,Neo Artrol,Novo-Flurprofen,Nu-Flurbiprofen,Ocufen,Ocuflur,Strefen,ratio-Flurbiprofen,Apo Flurbiprofen,BTS 18322,BTS18322,E 7869,E7869,Novo Flurprofen,Nu Flurbiprofen,ratio Flurbiprofen
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
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
D012694	Serine	A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.	L-Serine,L Serine
D013189	SRS-A	A group of LEUKOTRIENES; (LTC4; LTD4; and LTE4) that is the major mediator of BRONCHOCONSTRICTION; HYPERSENSITIVITY; and other allergic reactions. Earlier studies described a "slow-reacting substance of ANAPHYLAXIS" released from lung by cobra venom or after anaphylactic shock. The relationship between SRS-A leukotrienes was established by UV which showed the presence of the conjugated triene. (From Merck Index, 11th ed)	Slow Reacting Substance of Anaphylaxis