Effects of catecholaminergic or tryptaminergic agents on the morphine-induced straub tail reaction

Tsutomu Kameyama, Makoto Ukai, Toshitaka Nabeshima

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

An investigation was made of monoamine-related agents on the Straub tail reaction (STR) due to central excitatory effect of morphine (10 mg/kg). Apomorphine (10 mg/kg) showed a tendency to enhance the STR, and L-dopa (150 mg/kg) and methamphetamine (5 and 10 mg/kg) produced a significant increase in the STR. Phenoxybenzamine and propranolol induced the inhibition of the STR to a large extent. Diethyldithiocarbamatc (250 mg/kg) and disulfiram (200 and 400 mg/kg) had no influence on the STR. α-Methyl-p-tyrosine (100 and 400 mg/kg) reduced the STR. L-5-Hydroxytryptophan [L-5-HTP] (100 mg/kg) inhibited the STR significantly. Isocarboxazid (50 mg/kg), nialamide (50 and 100 mg/kg) and tranylcypromine (10 and 25 mg/kg) did not influence the STR. On the contrary, biochemical investigations showed that morphine (10 and 20 mg/kg) decreased the 5-hydroxytryptamine (5-HT) content of the lumbosacral cord significantly, although no alteration of 5-HT content occurred in various sites of the brain, compared to a vehicle-treated group. Morphine (10 and 20 mg/kg) did not act on the dopamine or norepinephrine content of various sites of the brain and spinal cord. Our results suggest that the STR is, at least to some extent, the result of an increase in catecholarninergic activity and/or a decrease in tryptaminergic activity in the central nervous system of mice.

Original languageEnglish
Pages (from-to)249-257
Number of pages9
JournalThe Japanese Journal of Pharmacology
Volume28
Issue number2
DOIs
Publication statusPublished - 01-01-1978

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Morphine
Tail
Isocarboxazid
Serotonin
Nialamide
Tranylcypromine
Neurologic Mutant Mice
Disulfiram
Phenoxybenzamine
5-Hydroxytryptophan
Methamphetamine
Apomorphine
Brain
Levodopa
Propranolol
Tyrosine
Dopamine
Spinal Cord
Norepinephrine
Central Nervous System

All Science Journal Classification (ASJC) codes

  • Pharmacology

Cite this

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abstract = "An investigation was made of monoamine-related agents on the Straub tail reaction (STR) due to central excitatory effect of morphine (10 mg/kg). Apomorphine (10 mg/kg) showed a tendency to enhance the STR, and L-dopa (150 mg/kg) and methamphetamine (5 and 10 mg/kg) produced a significant increase in the STR. Phenoxybenzamine and propranolol induced the inhibition of the STR to a large extent. Diethyldithiocarbamatc (250 mg/kg) and disulfiram (200 and 400 mg/kg) had no influence on the STR. α-Methyl-p-tyrosine (100 and 400 mg/kg) reduced the STR. L-5-Hydroxytryptophan [L-5-HTP] (100 mg/kg) inhibited the STR significantly. Isocarboxazid (50 mg/kg), nialamide (50 and 100 mg/kg) and tranylcypromine (10 and 25 mg/kg) did not influence the STR. On the contrary, biochemical investigations showed that morphine (10 and 20 mg/kg) decreased the 5-hydroxytryptamine (5-HT) content of the lumbosacral cord significantly, although no alteration of 5-HT content occurred in various sites of the brain, compared to a vehicle-treated group. Morphine (10 and 20 mg/kg) did not act on the dopamine or norepinephrine content of various sites of the brain and spinal cord. Our results suggest that the STR is, at least to some extent, the result of an increase in catecholarninergic activity and/or a decrease in tryptaminergic activity in the central nervous system of mice.",
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Effects of catecholaminergic or tryptaminergic agents on the morphine-induced straub tail reaction. / Kameyama, Tsutomu; Ukai, Makoto; Nabeshima, Toshitaka.

In: The Japanese Journal of Pharmacology, Vol. 28, No. 2, 01.01.1978, p. 249-257.

Research output: Contribution to journalArticle

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