Prefrontal and striatal dopamine metabolism during enhanced rebound hyperphagia induced by space restriction - A rat model of binge eating

被引:22
作者
Inoue, K [1 ]
Kiriike, N [1 ]
Okuno, M [1 ]
Fujisaki, Y [1 ]
Kurioka, M [1 ]
Iwasaki, S [1 ]
Yamagami, S [1 ]
机构
[1] Osaka City Univ, Sch Med, Dept Neuropsychiat, Abeno Ku, Osaka 545, Japan
关键词
binge eating; rebound hyperphagia; animal model; dopamine; striatum; prefrontal cortex;
D O I
10.1016/S0006-3223(97)00518-0
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Background: Several lines of evidence indicate that abnormalities in brain dopamine and serotonin metabolism may play an important role in bulimia nervosa. However, the regional neurochemical mechanism of the binge eating is poorly understood. Our purpose was to elucidate brain neurochemical mechanisms of binge eating using a rat model. Methods: The dopamine release and metabolism in the prefrontal cortex (PFC) and in the ventrolateral striatum (VLS) of rats were studied using microdialysis during enhanced rebound hyperphagia induced by space restriction (an animal model of binge eating). Results: The rats showed rebound hyperphagic state when they were released from scheduled feeding (2 hours/day feeding for 7 days). The hyperphagia was further enhanced when they were put in a space-restricted cage where their mobility was restricted. Dopamine release and metabolism were increased both in the PFC and in the VLS during the enhanced rebound hyperphagia. Conclusions: These results tentatively suggest that increased dopamine release and metabolism in the PFC and in the VLS may be related to space restriction and to activation of motor function involved in feeding behavior, respectively. The enhanced rebound hyperphagia induced by space restriction may be useful as an animal model of binge eating. Biol Psychiatry 1998;44:1329-1336 (C) 1998 Society of Biological Psychiatry.
引用
收藏
页码:1329 / 1336
页数:8
相关论文
共 42 条
[1]   DIFFERENTIAL EFFECT OF STRESS ON INVIVO DOPAMINE RELEASE IN STRIATUM, NUCLEUS ACCUMBENS, AND MEDIAL FRONTAL-CORTEX [J].
ABERCROMBIE, ED ;
KEEFE, KA ;
DIFRISCHIA, DS ;
ZIGMOND, MJ .
JOURNAL OF NEUROCHEMISTRY, 1989, 52 (05) :1655-1658
[2]  
[Anonymous], 1992, Arch Gen Psychiatry, V49, P139
[3]  
Bell KM, 1996, BIOL PSYCHIAT, V39, P360
[4]   EFFECTS OF CORTICAL ABLATIONS ON TONGUE USAGE IN RAT [J].
CASTRO, AJ .
BRAIN RESEARCH, 1972, 45 (01) :251-&
[5]   FOOTSHOCK AND CONDITIONED STRESS INCREASE 3,4-DIHYDROXYPHENYLACETIC ACID (DOPAC) IN THE VENTRAL TEGMENTAL AREA BUT NOT SUBSTANTIA NIGRA [J].
DEUTCH, AY ;
TAM, SY ;
ROTH, RH .
BRAIN RESEARCH, 1985, 333 (01) :143-146
[6]   BEHAVIORAL AND ANATOMICAL CONSEQUENCES OF SMALL INTRASTRIATAL INJECTIONS OF KAINIC ACID IN RAT [J].
DIVAC, I ;
MARKOWITSCH, HJ ;
PRITZEL, M .
BRAIN RESEARCH, 1978, 151 (03) :523-532
[7]   STRESS-INDUCED AND ENDOTOXIN-INDUCED INCREASES IN BRAIN TRYPTOPHAN AND SEROTONIN METABOLISM DEPEND ON SYMPATHETIC NERVOUS-SYSTEM ACTIVITY [J].
DUNN, AJ ;
WELCH, J .
JOURNAL OF NEUROCHEMISTRY, 1991, 57 (05) :1615-1622
[8]   COLD RESTRAINT ALTERS DOPAMINE METABOLISM IN FRONTAL-CORTEX, NUCLEUS ACCUMBENS AND NEOSTRIATUM [J].
DUNN, AJ ;
FILE, SE .
PHYSIOLOGY & BEHAVIOR, 1983, 31 (04) :511-513
[10]   LEARNING IMPAIRMENTS FOLLOWING SELECTIVE KAINIC ACID-INDUCED LESIONS WITHIN THE NEOSTRIATUM OF RATS [J].
DUNNETT, SB ;
IVERSEN, SD .
BEHAVIOURAL BRAIN RESEARCH, 1981, 2 (02) :189-209