Alterations in nociception and body temperature after intracisternal administration of neurotensin, β-endorphin, other endogenous peptides, and morphine

Charles Nemeroff, A. J. Osbahr, P. J. Manberg, G. N. Ervin, A. J. Prange

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160 Citations (Scopus)

Abstract

The antinociceptive and hypothermic effects of intracisternal administration of 11 endogenous neuropeptides and morphine were evaluated in mice. Of the substances tested, only neurotensin (NT) and β-endorphin exerted significant antinociceptive and hypothermic effects; NT was the most potent antinociceptive agent via this route of administration. . Both NT and β-endorphin were, on a molar basis, considerably more potent antinociceptive agents than morphine, [Met]enkephalin, or [Leu]enkephalin. NT-induced analgesia and hypothermia both were significantly dose-dependent. Substance P was found to produce significant hyperalgesia and hyperthermia. Bombesin produced a significant hypothermic effect, whereas somatostatin and luteinizing hormone-releasing hormone (luliberin) produced hyperthermia. None of the other peptides studied [bradykinin, thyrotropin-releasing factor (thyroliberin), melanocyte-stimulating hormone release-inhibiting factor (melanostatin), somatostatin, [Met]enkephalin, and [Leu]enkephalin] produced any significant alterations in colonic temperature or response to a noxious stimulus with the doses tested. These data demonstrate that NT and β-endorphin, two endogenous brain peptides, are potent in inducing hypothermia and in producing an antinociceptive state.

Original languageEnglish
Pages (from-to)5368-5371
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Volume76
Issue number10
DOIs
StatePublished - Dec 1 1979
Externally publishedYes

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Endorphins
Neurotensin
Nociception
Body Temperature
Morphine
Peptides
Leucine Enkephalin
Methionine Enkephalin
Thyrotropin-Releasing Hormone
Somatostatin
Gonadotropin-Releasing Hormone
Analgesics
Fever
MSH Release-Inhibiting Hormone
Induced Hypothermia
Bombesin
Hyperalgesia
Bradykinin
Substance P
Hypothermia

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

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abstract = "The antinociceptive and hypothermic effects of intracisternal administration of 11 endogenous neuropeptides and morphine were evaluated in mice. Of the substances tested, only neurotensin (NT) and β-endorphin exerted significant antinociceptive and hypothermic effects; NT was the most potent antinociceptive agent via this route of administration. . Both NT and β-endorphin were, on a molar basis, considerably more potent antinociceptive agents than morphine, [Met]enkephalin, or [Leu]enkephalin. NT-induced analgesia and hypothermia both were significantly dose-dependent. Substance P was found to produce significant hyperalgesia and hyperthermia. Bombesin produced a significant hypothermic effect, whereas somatostatin and luteinizing hormone-releasing hormone (luliberin) produced hyperthermia. None of the other peptides studied [bradykinin, thyrotropin-releasing factor (thyroliberin), melanocyte-stimulating hormone release-inhibiting factor (melanostatin), somatostatin, [Met]enkephalin, and [Leu]enkephalin] produced any significant alterations in colonic temperature or response to a noxious stimulus with the doses tested. These data demonstrate that NT and β-endorphin, two endogenous brain peptides, are potent in inducing hypothermia and in producing an antinociceptive state.",
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T1 - Alterations in nociception and body temperature after intracisternal administration of neurotensin, β-endorphin, other endogenous peptides, and morphine

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AU - Osbahr, A. J.

AU - Manberg, P. J.

AU - Ervin, G. N.

AU - Prange, A. J.

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AB - The antinociceptive and hypothermic effects of intracisternal administration of 11 endogenous neuropeptides and morphine were evaluated in mice. Of the substances tested, only neurotensin (NT) and β-endorphin exerted significant antinociceptive and hypothermic effects; NT was the most potent antinociceptive agent via this route of administration. . Both NT and β-endorphin were, on a molar basis, considerably more potent antinociceptive agents than morphine, [Met]enkephalin, or [Leu]enkephalin. NT-induced analgesia and hypothermia both were significantly dose-dependent. Substance P was found to produce significant hyperalgesia and hyperthermia. Bombesin produced a significant hypothermic effect, whereas somatostatin and luteinizing hormone-releasing hormone (luliberin) produced hyperthermia. None of the other peptides studied [bradykinin, thyrotropin-releasing factor (thyroliberin), melanocyte-stimulating hormone release-inhibiting factor (melanostatin), somatostatin, [Met]enkephalin, and [Leu]enkephalin] produced any significant alterations in colonic temperature or response to a noxious stimulus with the doses tested. These data demonstrate that NT and β-endorphin, two endogenous brain peptides, are potent in inducing hypothermia and in producing an antinociceptive state.

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