Serotonergic lesions decrease μ- and δ-ipiate receptor binding in discrete areas of the hypothalamus and in the midbrain central gray

Donald L. Allen, Allan E. Johnson, Ann Tempel, R. Suzanne Zukin, Victoria N. Luine, Bruce S. McEwen

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Serotonergic nerve terminals in the brain were lesioned by intraventricular infusion of the selective neurotoxin 5,7-dihydroxytryptamine (5,7-DHT) and levels of μ- and δ-opiate binding were measured in brain areas implicated in reproductive behavior and gonadotropin secretion. The lesion decreased μ-receptor binding in the preoptic area (mPOA) and the midbrain central gray, while δ-receptor binding was decreased in the mPOA and the dorsomedial nucleus of the hypothalamus. Hypothalamic serotonergic lesions also attenuated morphine inhibition of female sexual behavior. These results indicate the existence of serotonergic-opiate interactions in select regions of the brain and suggest that these interactions may be important in the regulation of lordosis behavior.

Original languageEnglish (US)
Pages (from-to)269-275
Number of pages7
JournalBrain Research
Volume625
Issue number2
DOIs
StatePublished - Oct 22 1993

Fingerprint

Periaqueductal Gray
Opiate Alkaloids
Hypothalamus
Dihydroxytryptamines
Brain
Intraventricular Infusions
Mediodorsal Thalamic Nucleus
Reproductive Behavior
Lordosis
Preoptic Area
Gonadotropins
Sexual Behavior
Morphine

Keywords

  • Hypothalamus
  • Lesion
  • Midbrain central gray
  • Opiate receptor
  • Serotonin
  • Sexual behavior

ASJC Scopus subject areas

  • Developmental Biology
  • Molecular Biology
  • Clinical Neurology
  • Neuroscience(all)

Cite this

Serotonergic lesions decrease μ- and δ-ipiate receptor binding in discrete areas of the hypothalamus and in the midbrain central gray. / Allen, Donald L.; Johnson, Allan E.; Tempel, Ann; Zukin, R. Suzanne; Luine, Victoria N.; McEwen, Bruce S.

In: Brain Research, Vol. 625, No. 2, 22.10.1993, p. 269-275.

Research output: Contribution to journalArticle

Allen, Donald L. ; Johnson, Allan E. ; Tempel, Ann ; Zukin, R. Suzanne ; Luine, Victoria N. ; McEwen, Bruce S. / Serotonergic lesions decrease μ- and δ-ipiate receptor binding in discrete areas of the hypothalamus and in the midbrain central gray. In: Brain Research. 1993 ; Vol. 625, No. 2. pp. 269-275.
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