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Titolo:
Diurnal modulation of long-term potentiation in the hamster hippocampal slice
Autore:
Raghavan, AV; Horowitz, JM; Fuller, CA;
Indirizzi:
Univ Calif Davis, Sect Neurobiol Physiol & Behav, Davis, CA 95616 USA UnivCalif Davis Davis CA USA 95616 Physiol & Behav, Davis, CA 95616 USA
Titolo Testata:
BRAIN RESEARCH
fascicolo: 2, volume: 833, anno: 1999,
pagine: 311 - 314
SICI:
0006-8993(19990703)833:2<311:DMOLPI>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPRACHIASMATIC NUCLEI; CIRCADIAN-RHYTHM; RATS; LTP;
Keywords:
neural plasticity; long-term potentiation; circadian rhythm; CA1 pyramidal cell; Mesocricetus auratus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Horowitz, JM Univ Calif Davis, Sect Neurobiol Physiol & Behav, 1 Shields Ave, Davis, CA95616 USA Univ Calif Davis 1 Shields Ave Davis CA USA 95616 CA95616 USA
Citazione:
A.V. Raghavan et al., "Diurnal modulation of long-term potentiation in the hamster hippocampal slice", BRAIN RES, 833(2), 1999, pp. 311-314

Abstract

Long-term potentiation (LTP) was examined in hippocampal slices from Syrian hamsters entrained to a LD 14:10 cycle, population spike (PS) amplitudes from CA1 pyramidal cells were measured before (control) and after tetanizing the Schaffer/collateral commissural pathway. Slices from animals sacrificed during the day, between zeitgeber time (ZT) 0430 and 0530, were incubated, and then tetanized between ZT 1340 and 1930, where ZT = 0 denotes lightson. Slices from animals sacrificed during the night, between ZT 1830 and 1930, were incubated, and tetanized between ZT 0030 and 0410. LTP, a sustained increase in PS amplitude following tetanus, was evoked in both groups. PS amplitude increased by 102.7 +/- 20.3% in animals sacrificed during the day and by 48.0 +/- 7.5% in animals sacrificed during the night (p < 0.05). Thus hamster slices prepared during the day show more robust LTP (a doubling of PS amplitude), a difference persisting in slices incubated for severalhours. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 11:38:31