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Titolo:
Distribution and daily variations of PACAP in the chicken brain
Autore:
Jozsa, R; Somogyvari-Vigh, A; Reglodi, D; Hollosy, T; Arimura, A;
Indirizzi:
Tulane Univ, Dept Med, New Orleans, LA 70112 USA Tulane Univ New Orleans LA USA 70112 Dept Med, New Orleans, LA 70112 USA Univ Pecs, Dept Anat, H-7624 Pecs, Hungary Univ Pecs Pecs Hungary H-7624Univ Pecs, Dept Anat, H-7624 Pecs, Hungary Tulane Univ, Hebert Ctr, US Japan Biomed Res Labs, Belle Chasse, LA 70037 USA Tulane Univ Belle Chasse LA USA 70037 es Labs, Belle Chasse, LA 70037 USA
Titolo Testata:
PEPTIDES
fascicolo: 9, volume: 22, anno: 2001,
pagine: 1371 - 1377
SICI:
0196-9781(200109)22:9<1371:DADVOP>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYCLASE-ACTIVATING POLYPEPTIDE; RAT PINEAL-GLAND; VASOACTIVE INTESTINAL POLYPEPTIDE; RECEPTOR MESSENGER-RNA; SUPRACHIASMATIC NUCLEUS; RETINOHYPOTHALAMIC TRACT; CIRCADIAN REGULATION; GENE-EXPRESSION; CONSTANT LIGHT; CYCLIC-AMP;
Keywords:
PACAP; chicken; daily variation; radioimmunoassay;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Somogyvari-Vigh, A Tulane Univ, Dept Med, New Orleans, LA 70112 USA TulaneUniv New Orleans LA USA 70112 ans, LA 70112 USA
Citazione:
R. Jozsa et al., "Distribution and daily variations of PACAP in the chicken brain", PEPTIDES, 22(9), 2001, pp. 1371-1377

Abstract

Levels of PACAP38 were measured in different areas of the chicken brain under various lighting conditions by radioimmunoassay (RIA). Selected groups of animals were maintained under light for 14 h alternating with 10 h of darkness (LD), reversed lighting conditions (DL) and constant light (LL) or constant dark (DD). Daily variations of PACAP levels were observed in the brainstem, diencephalon, telencephalon and retina. In the brainstem and diencephalon, levels of PACAP increased during subjective nighttime, except in the DL group where levels were elevated between 15-21 h. In the telencephalon, the lowest level of PACAP was measured between 12-21 h except in the DL group where two peaks occurred at 18 and 03 h. In the retina, all 4 groups showed a similar level and pattern, with lowest levels during midday hours. No daily variation was observed in the pineal gland, According to the present observations, it is suggested that PACAP levels differ in several areasof the chicken brain under various lighting conditions and photic stimuli do not appear to be the main regulators of the circadian variations of PACAP. (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 18/01/20 alle ore 01:40:40