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Titolo:
EFFECT OF PROLONGED FASTING AND SUBSEQUENT REFEEDING ON FREE-RUNNING RHYTHMS OF TEMPERATURE AND LOCOMOTOR-ACTIVITY IN RATS
Autore:
CHALLET E; PEVET P; MALAN A;
Indirizzi:
UNIV STRASBOURG 1,CNRS,URA 1332,12 RUE UNIV F-67000 STRASBOURG FRANCE
Titolo Testata:
Behavioural brain research
fascicolo: 1-2, volume: 84, anno: 1997,
pagine: 275 - 284
SICI:
0166-4328(1997)84:1-2<275:EOPFAS>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
CIRCADIAN PACEMAKER; PROTEIN-UTILIZATION; FOOD-DEPRIVATION; PHASE-SHIFTS; INDUCED RISE; ENTRAINMENT; RODENTS; TIME;
Keywords:
CIRCADIAN RHYTHM; FOOD DEPRIVATION; REFEEDING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
E. Challet et al., "EFFECT OF PROLONGED FASTING AND SUBSEQUENT REFEEDING ON FREE-RUNNING RHYTHMS OF TEMPERATURE AND LOCOMOTOR-ACTIVITY IN RATS", Behavioural brain research, 84(1-2), 1997, pp. 275-284

Abstract

This study investigated the possible effect(s) of prolonged fasting and subsequent ad lib refeeding on the circadian organization of rats kept in constant darkness. Free-running rhythms of wheel-running activity and body temperature were studied in rats fasted during a 7-day interval followed with ad lib refeeding started either at subjective midday, i.e., CT6 (circadian time 6) or subjective midnight, i.e., CT18. Phase-shifts of temperature acrophases were similar to those of activity acrophases. During fasting, phase-shifts were phase-advanced (1 circadian h on the average) in most cases. During refeeding, they were mostly phase-delays (2 circadian h on the average) independently of the circadian time of refeeding, i.e., ad lib refeeding did not act as a Zeitgeber. In conclusion, prolonged fasting and subsequent refeeding induce opposite effects on the circadian organization.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 07:36:14