Alfonso Tortorella

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Plasma levels of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF alpha) were assessed in 17 chronic schizophrenic patients who had been drug-free for 3 weeks and in 17 age- and sex-matched healthy subjects. Plasma concentrations of both cytokines were measured again in 12 patients after a 10-week treatment with clozapine. Compared with healthy(More)
Weight gain is a widely reported side effect of clozapine, but no predictive factor has been identified so far. We investigated whether pretreatment values of circulating leptin or its early changes during clozapine administration could predict the long-term weight gain induced by the drug. Body weight and plasma levels of leptin were prospectively measured(More)
BACKGROUND Functional alterations in the central serotonergic system have been reported in schizophrenia but no conclusive data have been provided. In the present study, we investigated the prolactin (PRL) response to the selective serotonin (5-HT) releasing agent D-fenfluramine in both patients with schizophrenia and matched healthy subjects. METHODS(More)
The functional relationship between the area tempestas (AT), an epileptogenic site within the deep prepiriform cortex, and the regions in the posterior piriform cortex which are innervated by AT, were studied in the rat. The GABAA receptor agonist, muscimol (390 pmol) was microinjected unilaterally into the posterior piriform cortex and adjacent regions in(More)
OBJECTIVES The pathophysiological mechanisms underlying binge eating disorder are poorly understood. Evidence exists for the fact that abnormalities in peptides involved in the regulation of appetite, including ghrelin, may play a role in binge eating behavior. Genes involved in the ghrelin physiology may therefore contribute to the biological vulnerability(More)
Ghrelin is a peripheral gastric peptide involved in the regulation of eating behavior and energy homeostasis. While changes in ghrelin plasma levels have been found in anorexia nervosa, bulimia nervosa (BN) and obesity, no study has assessed circulating ghrelin in binge eating disorder (BED). Therefore, we measured plasma levels of this peptide in women(More)
Bilateral focal injections of the serotonin uptake inhibitor, fluoxetine (1.75-7.0 nmol) into substantia nigra (SN) protected against convulsive seizures evoked by the focal injection of bicuculline methiodide into area tempestas, an epileptogenic site within the deep prepiriform cortex. Injection of fluoxetine unilaterally in SN or bilaterally into a site(More)
OBJECTIVE A role for the brain-derived neurotrophic factor (BDNF) in the regulation of eating behavior has been recently demonstrated. Therefore, the possibility exists that alterations in BDNF production and/or activity are involved in the pathophysiology of anorexia nervosa (AN) and obesity. METHODS We measured morning serum levels of BDNF in 22 women(More)
OBJECTIVE This study tested the reliability and validity of four definitions of rapid cycling. METHOD Two trained psychiatrists, using the Schedule for Affective Disorders and Schizophrenia, independently assessed 210 patients with bipolar disorder. They checked whether each patient met four definitions of rapid cycling: one consistent with DSM-IV(More)
Peripheral amino acid changes have been reported in schizophrenia, but results are not consistent. We measured serum levels of different amino acids in 11 neuroleptic-resistant schizophrenic patients before and after clozapine treatment and in 11 age- and sex-matched healthy subjects. The schizophrenic patients exhibited significantly higher levels of serum(More)