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Titolo:
Feeding increases 5-hydroxytryptamine and norepinephrine within the hypothalamus of chicks
Autore:
Tachibana, T; Tazawa, M; Sugahara, K;
Indirizzi:
Tokyo Univ Agr & Technol, United Grad Sch Agr Sci, Fuchu, Tokyo 1838509, Japan Tokyo Univ Agr & Technol Fuchu Tokyo Japan 1838509 , Tokyo 1838509, Japan Utsunomiya Univ, Fac Agr, Dept Anim Sci, Utsunomiya, Tochigi 3218505, Japan Utsunomiya Univ Utsunomiya Tochigi Japan 3218505 , Tochigi 3218505, Japan
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR AND INTEGRATIVE PHYSIOLOGY
fascicolo: 4, volume: 130, anno: 2001,
pagine: 715 - 722
SICI:
1095-6433(200111)130:4<715:FI5ANW>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOOD-INTAKE; SEROTONIN; RELEASE; RAT; STIMULATION; DEPRIVATION; DRINKING; ACID;
Keywords:
chick; feeding; hypothalamus; microdialysis; norepinephrine; 5-hydroxytryptamine;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Tachibana, T Tokyo Univ Agr & Technol, United Grad Sch Agr Sci, Fuchu, Tokyo 1838509, Japan Tokyo Univ Agr & Technol Fuchu Tokyo Japan 1838509 09, Japan
Citazione:
T. Tachibana et al., "Feeding increases 5-hydroxytryptamine and norepinephrine within the hypothalamus of chicks", COMP BIOC A, 130(4), 2001, pp. 715-722

Abstract

It is thought that hypothalamic 5-hydroxytryptamine (5HT) and norepinephrine (NE) are involved in the regulation of feeding in chicks. The present study was conducted to elucidate changes in the levels of extracellular 5HT and NE in the hypothalamus during feeding of chicks. In order to measure 5HT, NE and 4-hydroxy-3-methoxyphenylglycol (MHPG), which is a major metabolite of NE, we used brain microdialysis and high-pressure liquid chromatography with an electrochemical detector. After collecting samples to determine the basal levels of 5HT, NE and MHPG, food-deprived birds were given access to food. 5HT levels in the medial hypothalamus (MH) and lateral hypothalamus (LH) increased during the first 30 min of feeding, and then returned to basal levels. NE and MHPG in the LH increased during feeding, and remained elevated throughout the experiment. This study supports an idea that hypothalamic monoamines in the chick brain are involved in the regulation of feeding. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 06:26:36