alexa The influence of thiamine deficiency and ethanol on rat brain catecholamines.
Neurology

Neurology

Journal of Alzheimers Disease & Parkinsonism

Author(s): Sjquist B, Johnson HA, Neri A, Lindn S

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Abstract In rats treated with a thiamine deficient diet for 30 days the brain content of total thiamine decreased by 27-50\%. Thiamine deficiency decreased the dopamine (DA) concentration of the striatum indicating a reduced synthesis of DA. In the hypothalamus the levels of the catecholamine metabolites homovanillic acid (HVA) and 4-hydroxy-3-methoxyphenyl glycol (HMPG) were reduced indicating a reduced DA and noradrenaline (NA) turnover. Animals on a diet containing 5\% ethanol had increased concentrations of HVA and HMPG in rest brain indicating an increased DA and NA turnover. The concentration of 1-carboxysalsolinol (1-CSAL) and salsolinol (SAL) in the brain stem was increased in animals receiving ethanol. Thus, both thiamine deficiency and ethanol treatment influenced the catecholamine system in a complex region-dependent way. In the brain regions most susceptible to brain damage in thiamine deficiency, i.e., hypothalamus and brain stem, 1-CSAL and SAL increased most following thiamine deficiency combined with ethanol intake.
This article was published in Drug Alcohol Depend and referenced in Journal of Alzheimers Disease & Parkinsonism

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