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The comparison of glucose and lipid metabolism parameters in drug-naïve, antipsychotic-treated, and antipsychotic discontinuation patients with schizophrenia

Authors Wu X, Huang Z, Han H, Zhong Z, Gan Z, Guo X, Diao F, Han Z, Zhao J

Received 26 February 2014

Accepted for publication 12 May 2014

Published 22 July 2014 Volume 2014:10 Pages 1361—1368

DOI https://doi.org/10.2147/NDT.S63140

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Xiaoli Wu,1,2 Zeping Huang,3 Hongying Han,2 Zhiyong Zhong,2 Zhaoyu Gan,2 Xiaofeng Guo,1 Feici Diao,2 Zili Han,2 Jingping Zhao1

1Mental Health Institute of the Second Xiangya Hospital, Key Laboratory of Psychiatry and Mental Health of Hunan Province, Central South University, Changsha, Hunan, People’s Republic of China; 2Psychiatry Department, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People’s Republic of China; 3Ultrasound Department, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People’s Republic of China

Background: Although many studies have reported that glucose and lipid metabolism disorders are a significant side effect associated with the use of antipsychotic drugs, the characteristics of glucose and lipid metabolism disorders in patients with schizophrenia who are taking antipsychotic drugs remain poorly understood, and the possible effects that antipsychotic discontinuation may have on glucose and lipid metabolism remain unclear.
Methods: The sample consisted of 131 Chinese patients with schizophrenia, including 70 first-episode, drug-naïve patients; 33 patients who had received continuous antipsychotic drug treatment for ≥1 year prior to the beginning of the study; and 28 patients who had discontinued antipsychotic drug treatment for ≥3 months prior to the beginning of study. We compared the glucose and lipid metabolic parameter levels among the three groups of patients with schizophrenia. All assessments were performed upon hospital admission.
Results: The characteristics of glucose and lipid metabolism disorders in Chinese patients with schizophrenia who are taking antipsychotic drugs included significant augmentation of the body mass index and waist circumference, significantly higher levels of fasting plasma insulin and insulin resistance, and significantly lower plasma high-density lipoprotein cholesterol levels. Antipsychotic discontinuation appeared to not significantly improve any plasma glucose and lipid metabolic parameter levels.
Conclusion: The results suggest that antipsychotic drugs aggravate glucose and lipid metabolism disorders and that antipsychotic discontinuation is generally not associated with improvements in the parameters that indicate glucose and lipid metabolism disorders in Chinese patients with schizophrenia.

Keywords: antipsychotic-treated, antipsychotic discontinuation, drug-naïve, glucose, lipid, schizophrenia

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