BACLOFEN FACILITATES THE DEVELOPMENT OF LONG-TERM POTENTIATION IN THE RAT DENTATE GYRUS

被引:37
作者
MOTT, DD
LEWIS, DV
FERRARI, CM
WILSON, WA
SWARTZWELDER, HS
机构
[1] DUKE UNIV,MED CTR,DEPT NEUROBIOL,DURHAM,NC 27710
[2] DUKE UNIV,MED CTR,DEPT PEDIAT NEUROL,DURHAM,NC 27710
[3] DUKE UNIV,MED CTR,DEPT MED NEUROL,DURHAM,NC 27710
[4] DUKE UNIV,MED CTR,DEPT PSYCHOL,DURHAM,NC 27710
[5] VET ADM MED CTR,NEUROL RES LAB,DURHAM,NC 27705
关键词
Baclofen; Dentate gyrus; Disinhibition; GABA[!sub]B[!/sub] receptor; Hippocampal formation; Long-term potentiation;
D O I
10.1016/0304-3940(90)90307-U
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The effect of baclofen on the development of long-term potentiation (LTP) in the dentate gyrus was examined. Stimulus trains applied to the perforant path in the presence of baclofen produced significantly more potentiation of the perforant path-evoked response than did similar stimulation in control medium. In addition, baclofen enabled stimulus trains, ordinarily subthreshold for LTP induction, to produce LTP. These results demonstrate that GABAB receptor activation by baclofen makes repetitive stimulation more effective at producing LTP. © 1990.
引用
收藏
页码:222 / 226
页数:5
相关论文
共 16 条
[1]   EFFECTS OF BACLOFEN ON SYNAPTICALLY-INDUCED CELL FIRING IN THE RAT HIPPOCAMPAL SLICE [J].
AULT, B ;
NADLER, JV .
BRITISH JOURNAL OF PHARMACOLOGY, 1983, 80 (01) :211-219
[2]  
AULT B, 1982, J PHARMACOL EXP THER, V223, P291
[3]   BACLOFEN - 10 YEARS ON [J].
BOWERY, NG .
TRENDS IN PHARMACOLOGICAL SCIENCES, 1982, 3 (10) :400-403
[4]   INHIBITORY MODULATION OF LONG-TERM POTENTIATION - EVIDENCE FOR A POSTSYNAPTIC LOCUS OF CONTROL [J].
DOUGLAS, RM ;
GODDARD, GV ;
RIIVES, M .
BRAIN RESEARCH, 1982, 240 (02) :259-272
[5]   LONG-TERM POTENTIATION OF PERFORANT PATH-GRANULE CELL SYNAPSE IN RAT HIPPOCAMPUS [J].
DOUGLAS, RM ;
GODDARD, GV .
BRAIN RESEARCH, 1975, 86 (02) :205-215
[6]   A PHYSIOLOGICAL-ROLE FOR GABAB RECEPTORS IN THE CENTRAL NERVOUS-SYSTEM [J].
DUTAR, P ;
NICOLL, RA .
NATURE, 1988, 332 (6160) :156-158
[7]   COMPARISON OF ANTAGONISM BY PHACLOFEN OF BACLOFEN INDUCED HYPERPOLARIZATIONS AND SYNAPTICALLY MEDIATED LATE HYPERPOLARIZING POTENTIALS RECORDED INTRACELLULARLY FROM RAT DORSOLATERAL SEPTAL NEURONS [J].
HASUO, H ;
GALLAGHER, JP .
NEUROSCIENCE LETTERS, 1988, 86 (01) :77-81
[8]   GABAB-RECEPTOR-MEDIATED ACTIONS OF BACLOFEN IN RAT ISOLATED NEOCORTICAL SLICE PREPARATIONS - ANTAGONISM BY PHOSPHONO-ANALOGS OF GABA [J].
KERR, DIB ;
ONG, J ;
JOHNSTON, GAR ;
PRAGER, RH .
BRAIN RESEARCH, 1989, 480 (1-2) :312-316
[9]   BACLOFEN SELECTIVELY INHIBITS EXCITATORY SYNAPTIC TRANSMISSION IN THE HIPPOCAMPUS [J].
LANTHORN, TH ;
COTMAN, CW .
BRAIN RESEARCH, 1981, 225 (01) :171-178
[10]  
LOMO T, 1971, EXP BRAIN RES, V12, P46