Prolactin Levels in Cerebrospinal Fluid of Patients with Chronic Schizophrenia

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Abstract
Baseline concentrations of prolactin (PRL) were determined in the CSF of 28 lobotomized and 28 non-lobotomized patients with chronic schizophrenia. The mean PRL level of the female patients was significantly higher than that of the male patients (p < 0.001). In addition, non-lobotomized patients had significantly higher concentrations of CSF PRL than patients of the lobotomized group (p < 0.05). On the other hand, patients belonging to the latter group exhibited significantly more central as well as cortical brain atrophy than the patients on whom no psychosurgery had been performed (0.05 > p < 0.001). The significance of cerebrospinal PRL as an index of central dopamine metabolism is discussed.