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Journal of Clinical Psychopharmacology:
doi: 10.1097/JCP.0b013e3182524393
Brief Reports

Dysregulation of Adipocytokines Related to Second-Generation Antipsychotics in Normal Fasting Glucose Patients With Schizophrenia

Sugai, Takuro MD, PhD; Suzuki, Yutaro MD, PhD; Fukui, Naoki MD, PhD; Ono, Shin MD; Watanabe, Junzo MD, PhD; Tsuneyama, Nobuto MD; Someya, Toshiyuki MD, PhD

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Objective: The underlying mechanism for second-generation antipsychotic (SGA)-related glucose-lipid metabolic dysfunction is not fully understood. Recent studies have suggested a possible impact of SGAs on endocrine regulation, especially on adipocytokines. We examined the effect of each SGA on various adipocytokines in normal fasting glucose (NFG) subjects.

Method: The study population comprised 113 Japanese inpatients with schizophrenia who were treated with olanzapine, risperidone, or quetiapine, and 123 healthy control (CONT) volunteers. All of the subjects were diagnosed with NFG. Plasma concentration of adiponectin, leptin, tumor necrosis factor α, total cholesterol, triglyceride, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol were compared between the SGA and CONT groups.

Results: Second-generation antipsychotic subjects had significantly higher leptin levels in comparison to the CONT subjects. The plasma concentration of adiponectin, total cholesterol, and high-density lipoprotein cholesterol in the SGA subjects were significantly lower than those in the CONT subjects. There were no significant differences in tumor necrosis factor α, triglyceride, and low-density lipoprotein cholesterol levels between the 2 groups. In a stepwise multiple regression analysis, olanzapine was found to be a factor that contributed to decreased adiponectin levels, and the CONT subjects were detected to be a factor associated with lower leptin levels.

Conclusions: The present study indicates the possibility that the administration of SGAs may affect adipocytokines in the NFG stage, excluding the impaired fasting glucose group, which is in the transition stage into diabetes mellitus.

© 2012 Lippincott Williams & Wilkins, Inc.


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