Horm Metab Res 1982; 14(6): 310-312
DOI: 10.1055/s-2007-1019002
© Georg Thieme Verlag, Stuttgart · New York

Reduced 3H-Dopamine Uptake by Blood Platelets in Patients with Prolactin-Secreting Pituitary Adenoma

I. Nicoletti, E. Capodicasa, F. Santeusanio, G. G. Nenci, P. Brunetti
  • Istituti di Clinica Medica, Semeiotica Medica e Patologia Medica, University of Perugia, Perugia, Italy
Further Information

Publication History

1981

1981

Publication Date:
23 April 2008 (online)

Summary

Uptake of 3H-Dopamine by blood platelets was found to be significantly reduced in eight patients with prolactin (PRL) secreting pituitary adenoma in comparison to normal subjects (27.91±5.01 nmol/1011 platelets vs. 73.42±4.99 nmol/1011 platelets, p<0.001). Since platelet monoamine uptake seems to reflect brain monoaminergic activity, the reduction of dopamine uptake (DAU) in our hyperprolactinemic subjects suggests a defective dopaminergic neurotransmission in patients with PRL-secreting tumors.