Phenomenology and neurobiology of cocaine withdrawal: Are they related?

Ananda Pathiraja, Donatella Marazziti, Giovanni B. Cassano, Bruce I. Diamond, Richard L. Borison

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

1. 1. The presence of mood disturbances and platelet 3H-imipramine binding, a putative peripheral serotonergic marker, were evaluted in a group of 27 cocaine users three days after drug withdrawal. 2. 2. Parameters of cocaine use and the linkage between cocaine withdrawal and "post-cocaine depression" were also investigated. In a subgroup of 10 patients, both psychopathological and biological measurements were repeated after 5 or 6 weeks. 3. 3. Interpretation of the data by Pearson's analysis showed a statistically significant and positive correlation between Hamilton Rating Scale for Depression (HAM-D) scores and period of use. A trend towards a negative correlation, which however did not reach the statistical significance, was found between 3H-Imipramine binding and period of cocaine use, number of days of abstinence and HAM-D scores 4. 4. When compared with normal volunteers at baseline, patients had significantly lower Bmax and Kd values which returned towards normal values after 5 or 6 weeks of cocaine withdrawal. 5. 5. These results indicate the presence of a decreased platelet imipramine binding during cocaine withdrawal which may be due to the effect of the drug or alternatively, a result of concomitant depression which may be primary or secondary in origin. The decreased imipramine binding is a reversible phenomenon, since it increases with the time, in parallel with the improvement of depressive symptoms.

Original languageEnglish (US)
Pages (from-to)1021-1034
Number of pages14
JournalProgress in Neuropsychopharmacology and Biological Psychiatry
Volume19
Issue number6
DOIs
StatePublished - Oct 1995

Keywords

  • cocaine
  • cocaine craving
  • cocaine withdrawal
  • depression
  • imipramine binding
  • platelets
  • serotonin
  • serotonin uptake

ASJC Scopus subject areas

  • Pharmacology
  • Biological Psychiatry

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