Platelet [3H]paroxetine binding, 5-HT-stimulated Ca2+ response, and 5-HT content in winter seasonal affective disorder

Norio Ozaki, Norman E. Rosenthal, Pascale Mazzola, Chuang C. Chiueh, Todd Hardin, Diego Garcia-Borreguero, Paul J. Schwartz, Erick Turner, Dan A. Oren, Dennis L. Murphy

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The present study was designed to evaluate cellular serotonergic functions in winter seasonal affective disorder (SAD) using serotonin (5-HT)-stimulated Ca2+ response as an integrated measure of 5-HT2 receptor function in platelets, [3H]paroxetine binding to characterize the platelet 5-HT transporter and 5-HT content as an index of the platelet storage capacity for this neurotransmitter amine. Purified density-dependent subpopulations of platelets in untreated and light-treated SAD patients and matched controls were investigated in order to control for possible variations in platelet turnover. We found no differences between SAD patients and controls on any of the measures, nor between light therapy conditions in SAD patients, although we found a higher Bmax of [3H]paroxetine binding and 5-HT content in heavy platelets compared to light platelets. Although the validity of platelets serotonergic measures as a model for brain serotonergic systems still remains to be elucidated, we found no evidence of platelet serotonergic abnormalities in our sample of SAD patients.

Original languageEnglish (US)
Pages (from-to)458-466
Number of pages9
JournalBiological Psychiatry
Volume36
Issue number7
DOIs
StatePublished - Oct 1 1994
Externally publishedYes

Fingerprint

Seasonal Affective Disorder
Paroxetine
Serotonin
Blood Platelets
Phototherapy
Amines
Neurotransmitter Agents

Keywords

  • calcium
  • light therapy
  • platelet
  • Seasonal affective disorder
  • serotonin
  • [H]paroxetine binding

ASJC Scopus subject areas

  • Biological Psychiatry

Cite this

Ozaki, N., Rosenthal, N. E., Mazzola, P., Chiueh, C. C., Hardin, T., Garcia-Borreguero, D., ... Murphy, D. L. (1994). Platelet [3H]paroxetine binding, 5-HT-stimulated Ca2+ response, and 5-HT content in winter seasonal affective disorder. Biological Psychiatry, 36(7), 458-466. https://doi.org/10.1016/0006-3223(94)90641-6

Platelet [3H]paroxetine binding, 5-HT-stimulated Ca2+ response, and 5-HT content in winter seasonal affective disorder. / Ozaki, Norio; Rosenthal, Norman E.; Mazzola, Pascale; Chiueh, Chuang C.; Hardin, Todd; Garcia-Borreguero, Diego; Schwartz, Paul J.; Turner, Erick; Oren, Dan A.; Murphy, Dennis L.

In: Biological Psychiatry, Vol. 36, No. 7, 01.10.1994, p. 458-466.

Research output: Contribution to journalArticle

Ozaki, N, Rosenthal, NE, Mazzola, P, Chiueh, CC, Hardin, T, Garcia-Borreguero, D, Schwartz, PJ, Turner, E, Oren, DA & Murphy, DL 1994, 'Platelet [3H]paroxetine binding, 5-HT-stimulated Ca2+ response, and 5-HT content in winter seasonal affective disorder', Biological Psychiatry, vol. 36, no. 7, pp. 458-466. https://doi.org/10.1016/0006-3223(94)90641-6
Ozaki, Norio ; Rosenthal, Norman E. ; Mazzola, Pascale ; Chiueh, Chuang C. ; Hardin, Todd ; Garcia-Borreguero, Diego ; Schwartz, Paul J. ; Turner, Erick ; Oren, Dan A. ; Murphy, Dennis L. / Platelet [3H]paroxetine binding, 5-HT-stimulated Ca2+ response, and 5-HT content in winter seasonal affective disorder. In: Biological Psychiatry. 1994 ; Vol. 36, No. 7. pp. 458-466.
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