Methanol-induced monoamine changes in hypothalamus and striatum of albino rats

P. S. Jeganathan, A. Namasivayam

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This paper suggests that like ethanol, methanol also produces certain changes in the steady state level of monoamines in hypothalamus and striatum of albino rats. Though, the toxic manifestations of methanol are attributed to the metabolic end product of methanol viz. formic acid by several workers, we report here that the methanol-induced brain monoamine changes, at least, could be attributed to the direct action of methanol rather than to its metabolic end products like formaldehyde or formate. Studies in the steady state level of rat brain monoamines have shown that after methanol administration (3 g/kg), there is severe depletion of dopamine level in striatum but a significant increase in the level of dopamine, serotonin and 5-hydroxy indole acetic acid in hypothalamus. At the same time, norepinephrine and epinephrine levels are reduced in hypothalamus as well as in striatum. These effects do not seem to be induced by metabolic acidosis. The changes in monoamine levels are very well correlated with the blood and brain level of methanol as evidenced by maintaining a higher methanol level either by simultaneous administration of ethanol or by blocking methanol metabolism by pretreatment with 4-methyl pyrazole and 3-amino-1,2,4-triazole. It is thus postulated that monoamine changes induced by methanol appear to be the direct effect of methanol per se on the monoaminergic neuronal membranes.

Original languageEnglish
Pages (from-to)451-454
Number of pages4
JournalAlcohol
Volume6
Issue number6
DOIs
Publication statusPublished - 01-01-1989
Externally publishedYes

Fingerprint

Hypothalamus
Methanol
Rats
brain
formic acid
Brain
worker
Dopamine
Ethanol
Amitrole
Poisons
Acidosis
Metabolism
Formaldehyde
Epinephrine
Serotonin
Norepinephrine
Blood
Membranes

All Science Journal Classification (ASJC) codes

  • Health(social science)
  • Biochemistry
  • Toxicology
  • Neurology
  • Behavioral Neuroscience

Cite this

Jeganathan, P. S. ; Namasivayam, A. / Methanol-induced monoamine changes in hypothalamus and striatum of albino rats. In: Alcohol. 1989 ; Vol. 6, No. 6. pp. 451-454.
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Methanol-induced monoamine changes in hypothalamus and striatum of albino rats. / Jeganathan, P. S.; Namasivayam, A.

In: Alcohol, Vol. 6, No. 6, 01.01.1989, p. 451-454.

Research output: Contribution to journalArticle

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