Melatonin and cortisol circadian secretion during ethanol withdrawal in chronic alcoholics

S. Fonzi, G. P. Solinas, P. Costelli, C. Parodi, G. Murialdo, P. Bo, A. Albergati, L. Montalbetti, F. Savoldi, A. Polleri

Research output: Contribution to journalArticle

Abstract

Changes in central neurotransmission and in hypothalamo-pituitary function occur in both ethanol (ETOH) intake and withdrawal. Melatonin (MLT) secretion is regulated by the noradrenergic system, which is activated upon ETOH withdrawal. Experimental evidence exist that pineal gland may have a role in ETOH intake and preference in rats. Twenty-four hour urinary excretion of MLT was found to be increased during ETOH intake in chronic alcoholics. In this study we have determined 24h plasma levels of MLT and cortisol in 8 chronic alcoholic males hospitalized for a detoxication program and in 8 healthy controls. The study was performed just after admission, on the first day of ETOH withdrawal and after 14 days of controlled abstinence. Circadian periodicity has been evaluated by the cosinor method. The initial determinations corresponded to the acute withdrawal phase. Twenty-four hour plasma MLT mean levels on acute withdrawal were higher than after 14 days abstinence and than those found in controls. Large interindividual differences prevented the detection of statistical significance. The cosinor analysis disclosed the loss of circadian periodicity in the acute withdrawal. Significant 24h periodicity was restored after 14 days abstinence. Cortisol levels were significantly higher than those found on day 14 and in healthy controls. Twenty-four hour periodicity was maintained in both alcoholics series. A delay in cortisol acrophase occurred in acute withdrawal. The effects of Corticotropin Releasing Hormone infusion on cortisol secretion were significantly enhanced in the acute withdrawal phase in comparison with those occurring when patients were retested and with healthy controls.

Original languageEnglish
Pages (from-to)109-112
Number of pages4
JournalChronobiologia
Volume21
Issue number1-2
Publication statusPublished - 1994

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Periodicity
Melatonin
Alcoholics
Hydrocortisone
Ethanol
Pineal Gland
Corticotropin-Releasing Hormone
Synaptic Transmission

ASJC Scopus subject areas

  • Developmental Biology
  • Physiology

Cite this

Fonzi, S., Solinas, G. P., Costelli, P., Parodi, C., Murialdo, G., Bo, P., ... Polleri, A. (1994). Melatonin and cortisol circadian secretion during ethanol withdrawal in chronic alcoholics. Chronobiologia, 21(1-2), 109-112.

Melatonin and cortisol circadian secretion during ethanol withdrawal in chronic alcoholics. / Fonzi, S.; Solinas, G. P.; Costelli, P.; Parodi, C.; Murialdo, G.; Bo, P.; Albergati, A.; Montalbetti, L.; Savoldi, F.; Polleri, A.

In: Chronobiologia, Vol. 21, No. 1-2, 1994, p. 109-112.

Research output: Contribution to journalArticle

Fonzi, S, Solinas, GP, Costelli, P, Parodi, C, Murialdo, G, Bo, P, Albergati, A, Montalbetti, L, Savoldi, F & Polleri, A 1994, 'Melatonin and cortisol circadian secretion during ethanol withdrawal in chronic alcoholics', Chronobiologia, vol. 21, no. 1-2, pp. 109-112.
Fonzi S, Solinas GP, Costelli P, Parodi C, Murialdo G, Bo P et al. Melatonin and cortisol circadian secretion during ethanol withdrawal in chronic alcoholics. Chronobiologia. 1994;21(1-2):109-112.
Fonzi, S. ; Solinas, G. P. ; Costelli, P. ; Parodi, C. ; Murialdo, G. ; Bo, P. ; Albergati, A. ; Montalbetti, L. ; Savoldi, F. ; Polleri, A. / Melatonin and cortisol circadian secretion during ethanol withdrawal in chronic alcoholics. In: Chronobiologia. 1994 ; Vol. 21, No. 1-2. pp. 109-112.
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