Resynchronisation of a diurnal rodent circadian clock accelerated by a melatonin agonist

被引:33
作者
Van Reeth, B [1 ]
Olivares, E [1 ]
Turek, FV [1 ]
Granjon, L [1 ]
Mocaer, E [1 ]
机构
[1] Univ Libre Brussels, Hop Erasme, Fac Med, Ctr Etud Rythmes Biol, B-1070 Brussels, Belgium
关键词
Arvicanthis; circadian clock phase shift; diurnal rodent; jet lag; melatonin agonist;
D O I
10.1097/00001756-199806010-00043
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
USING 'jet lag' paradigms involving phase shifts in the light-dark (LD) cycle, we studied the effects of S-20098 on the circadian clock of a diurnal rodent. Arvicanthis mordax, entrained to a regular LD cycle, were subjected to advance shifts (i.e. 4, 6 or 8 h) in the LD cycle and injected with vehicle or the melatonin agonist S-20098 (20 mg/kg) the day of the shift (and also on subsequent days in the 6 h or 8 h shift paradigms). In each condition, S-20098 accelerated by about 30% resynchronization to the new LD cycle. These data, which are the first to demonstrate the chronobiotic effects of a melatonin agonist in a diurnal rodent, provide new insights for the design of human chronopharmacological protocols. (C) 1998 Rapid Science Ltd.
引用
收藏
页码:1901 / 1905
页数:5
相关论文
共 19 条
[1]  
BENLOUCIF S, 1996, PHYSIOLOGIST, V38, pA23
[2]  
BONNEFOND C, 1993, INT CONGR SER, V1017, P123
[3]   FUNCTIONAL-ANALYSIS OF CIRCADIAN PACEMAKERS IN NOCTURNAL RODENTS .2. VARIABILITY OF PHASE RESPONSE CURVES [J].
DAAN, S ;
PITTENDRIGH, CS .
JOURNAL OF COMPARATIVE PHYSIOLOGY, 1976, 106 (03) :253-266
[4]  
Dubocovich ML, 1996, BEHAV BRAIN RES, V73, P141
[5]   Characterization of two distinct species of Arvicanthis (Rodentia: Muridae) in West Africa: Cytogenetic, molecular and reproductive evidence [J].
Ducroz, JF ;
Granjon, L ;
Chevret, P ;
Duplantier, JM ;
Lombard, M ;
Volobouev, V .
JOURNAL OF ZOOLOGY, 1997, 241 :709-723
[6]   NONPHOTIC PHASE-SHIFTING OF THE CIRCADIAN ACTIVITY RHYTHM OF SYRIAN-HAMSTERS - THE RELATIVE POTENCY OF AROUSAL AND MELATONIN [J].
HASTINGS, MH ;
MEAD, SM ;
VINDLACHERUVU, RR ;
EBLING, FJP ;
MAYWOOD, ES ;
GROSSE, J .
BRAIN RESEARCH, 1992, 591 (01) :20-26
[7]   Wheel-running rhythms in Arvicanthis niloticus [J].
Katona, C ;
Smale, L .
PHYSIOLOGY & BEHAVIOR, 1997, 61 (03) :365-372
[8]   Molecular dissection of two distinct actions of melatonin on the suprachiasmatic circadian clock [J].
Liu, C ;
Weaver, DR ;
Jin, XW ;
Shearman, LP ;
Pieschl, RL ;
Gribkoff, VK ;
Reppert, SM .
NEURON, 1997, 19 (01) :91-102
[9]   Entrainment of circadian rhythms by S-20098, a melatonin agonist, is dose and plasma concentration dependent [J].
Martinet, L ;
GuardiolaLemaitre, B ;
Mocaer, E .
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR, 1996, 54 (04) :713-718
[10]  
MCELHINNY TL, 1997, PHYSIOL BEHAV, V62, P92