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Titolo:
Involvement of nitric oxide in parasympathetic and antidromic vasodilatations in cat lower lip
Autore:
Suzuki, H; Iwatsuki, N; Karita, K; Izumi, H;
Indirizzi:
Tohoku Univ, Sch Dent, Dept Orofacial Funct, Sendai, Miyagi 9808575, JapanTohoku Univ Sendai Miyagi Japan 9808575 ct, Sendai, Miyagi 9808575, Japan
Titolo Testata:
TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE
fascicolo: 2, volume: 191, anno: 2000,
pagine: 59 - 70
SICI:
0040-8727(200006)191:2<59:IONOIP>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD-FLOW; DENTAL-PULP; NERVOUS CONTROL; LASER DOPPLER; LINGUAL NERVE; METHYL-ESTER; ALKYL ESTERS; RAT; STIMULATION; RESPONSES;
Keywords:
parasympathetic; antidromic; vasodilatation; nitric oxide; cat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Izumi, H Tohoku Univ, Sch Dent, Dept Orofacial Funct, Sendai, Miyagi 9808575, Japan Tohoku Univ Sendai Miyagi Japan 9808575 i, Miyagi 9808575, Japan
Citazione:
H. Suzuki et al., "Involvement of nitric oxide in parasympathetic and antidromic vasodilatations in cat lower lip", TOH J EX ME, 191(2), 2000, pp. 59-70

Abstract

The involvement of nitric oxide (NO) in the lower lip vasodilatations mediated via parasympathetic and antidromic mechanisms was examined in alpha-chloralose/urethane-anesthetized cats, with the two types of blood flow responses being recorded separately (by laser Doppler flowmeter) from the two sides of the lower lip. The central cut end of the lingual nerve (LN) or the peripheral cut end of the inferior alveolar nerve (IBN) was electrically stimulated to elicit parasympathetic or antidromic vasodilatation, respectively in the lower lip. N-G-nitro-L arginine methyl ester (L-NAME), but not N-G-nitro-D-arginine methyl ester (D-NAME) (each at 30 mg/kg), markedly reduced the increases in lip blood flow evoked by stimulation, the reduction being to a similar degree irrespective of whether LN or IAN was stimulated. Pretreatment with L-arginine did not prevent the L-NAME-induced attenuation of either type of vasodilatation. In conclusion, these results suggest that synthesized NO may have a common site of action in antidromic and parasympathetic vasodilator pathways to the cat lower lip. (C) 2000 Tohoku University Medical Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 08:59:47