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Alcohol and Alcoholism Advance Access published online on December 13, 2004
Alcohol and Alcoholism, doi:10.1093/alcalc/agh129
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Alcohol & Alcoholism © Medical Council on Alcohol 2004; all rights reserved
Received August 26, 2004
Revised October 21, 2004
Accepted November 8, 2004

Article

TASTE RESPONSES TO MONOSODIUM GLUTAMATE AFTER ALCOHOL EXPOSURE

ELZBIETA WROBEL 1, DOMINIKA SKROK-WOLSKA 2, MARCIN ZIOLKOWSKI 2, AGNIESZKA KORKOSZ 1, BOGUSLAW HABRAT 3, BOHDAN WORONOWICZ 3, ANDRZEJ KUKWA 4, WOJCIECH KOSTOWSKI 1, PRZEMYSLAW BIENKOWSKI 1, and ANNA SCINSKA 5*

1 Department of Pharmacology, Institute of Psychiatry and Neurology, Warsaw, Poland
2 Department of Psychiatry Nursing, The Ludwik Rydygier Medical University, Bydgoszcz, Poland
3 Department of Prevention and Treatment of Addictions, Institute of Psychiatry and Neurology, Warsaw, Poland
4 Department of Otolaryngology, Warsaw Medical Academy, Warsaw, Poland
5 Department of Pharmacology, Institute of Psychiatry and Neurology, Warsaw, Poland; Department of Otolaryngology, Warsaw Medical Academy, Warsaw, Poland

* To whom correspondence should be addressed.
ANNA SCINSKA, E-mail: scinska{at}yahoo.com


  Abstract

Aims: The aim of the present study was to evaluate the effects of acute and chronic exposure to alcohol on taste responses to a prototypic umami substance, monosodium glutamate (MSG). Methods: The rated intensity and pleasantness of MSG taste (0.03-10.0%) was compared in chronic male alcoholics (n = 35) and control subjects (n = 25). In a separate experiment, the effects of acute exposure of the oral mucosa to ethanol rinse (0.5-4.0%) on MSG taste (0.3-3.0%) were studied in 10 social drinkers. Results: The alcoholic and control group did not differ in terms of the rated intensity and pleasantness of MSG taste. Electrogustometric thresholds were significantly (P < 0.01) higher, i.e. worse, in the alcohol-dependent subjects. The difference remained significant after controlling for between-group differences in cigarette smoking and coffee drinking. Rinsing with ethanol did not alter either intensity or pleasantness of MSG taste in social drinkers. Conclusions: The present results suggest that: (i) neither acute nor chronic alcohol exposure modifies taste responses to MSG; (ii) alcohol dependence may be associated with deficit in threshold taste reactivity, as assessed by electrogustometry.


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M. WRONSKI, D. SKROK-WOLSKA, J. SAMOCHOWIEC, M. ZIOLKOWSKI, L. SWIECICKI, P. BIENKOWSKI, A. KORKOSZ, P. ZATORSKI, W. KUKWA, and A. SCINSKA
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