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Blood and Urinary Biomarkers of Antipsychotic-Induced Metabolic Syndrome. Metabolites 2022; 12:metabo12080726. [PMID: 36005598 PMCID: PMC9416438 DOI: 10.3390/metabo12080726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 12/15/2022] Open
Abstract
Metabolic syndrome (MetS) is a clustering of at least three of the following five medical conditions: abdominal obesity, high blood pressure, high blood sugar, high serum triglycerides, and low serum high-density lipoprotein (HDL). Antipsychotic (AP)-induced MetS (AIMetS) is the most common adverse drug reaction (ADR) of psychiatric pharmacotherapy. Herein, we review the results of studies of blood (serum and plasma) and urinary biomarkers as predictors of AIMetS in patients with schizophrenia (Sch). We reviewed 1440 studies examining 38 blood and 19 urinary metabolic biomarkers, including urinary indicators involved in the development of AIMetS. Among the results, only positive associations were revealed. However, at present, it should be recognized that there is no consensus on the role of any particular urinary biomarker of AIMetS. Evaluation of urinary biomarkers of the development of MetS and AIMetS, as one of the most common concomitant pathological conditions in the treatment of patients with psychiatric disorders, may provide a key to the development of strategies for personalized prevention and treatment of the condition, which is considered a complication of AP therapy for Sch in clinical practice.
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Dias ICS, de Campos-Carli SM, Vieira ELM, Mota APL, Azevedo PS, Anício VTDS, Guimarães FC, Mantovani LM, Cruz BF, Teixeira AL, Salgado JV. Adiponectin and Stnfr2 peripheral levels are associated with cardiovascular risk in patients with schizophrenia. J Psychiatr Res 2022; 149:331-338. [PMID: 34785039 DOI: 10.1016/j.jpsychires.2021.11.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/17/2021] [Accepted: 11/06/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To investigate the association between cytokine peripheral levels and the risk of cardiovascular disease in patients with schizophrenia and controls. METHODS A sample of 40 patients and 40 control subjects participated in the study. Psychiatric diagnosis was established following structured clinical assessment. The Framingham Score was used to assess cardiovascular risk (CVR). Serum levels of the cytokines IL-1β, IL-6, IL-8, IL-10, IL-12p70 and TNF-α were determined by cytometric bead array (CBA) technique, and the serum levels of IL-33, sST2, sTNFR1, sTNFR2, Leptin and Adiponectin by Enzyme-Linked Immunosorbent assay (ELISA). RESULTS Patients with schizophrenia showed greater frequency of moderate CVR when compared with controls (p = 0.14). In addition, patients showed higher levels of sTNFR2 and Adiponectin compared to controls (p = 0.007 and p < 0.001, respectively). Adiponectin and sTNFR2 were associated with CVR only in patients (p = 0.0002 and p = 0.033, respectively). In multivariate analysis controlling for socio-demographic and clinical confounders, illness duration (r = 0.492; p < 0.002) and sTNFR2 (r = 0.665; p < 0.004) were independent predictors of CVR. CONCLUSION Our results reinforce the concept that patients with schizophrenia are at greater risk to develop cardiovascular diseases, and suggest that the associated chronic low-grade inflammation might play a role in this process.
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Affiliation(s)
- Ingrid Caroline Silva Dias
- Neuroscience Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil; Laboratório Interdisciplinar de Investigação Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), MG, Brazil
| | - Salvina Maria de Campos-Carli
- Neuroscience Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil; Laboratório Interdisciplinar de Investigação Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), MG, Brazil
| | - Erica Leandro Marciano Vieira
- Neuroscience Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil; Laboratório Interdisciplinar de Investigação Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), MG, Brazil
| | - Ana Paula Lucas Mota
- Department of de Clinical Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Pâmela Santos Azevedo
- Department of de Clinical Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Lucas Machado Mantovani
- Neuroscience Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil; Instituto Raul Soares - FHEMIG, Belo Horizonte, Brazil
| | - Breno Fiúza Cruz
- Mental Health Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Antonio Lúcio Teixeira
- Neuroscience Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil; Neuropsychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, USA; Instituto de Ensino e Pesquisa, Faculdade Santa Casa BH, Belo Horizonte, Brazil
| | - João Vinícius Salgado
- Neuroscience Program, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil; Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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Qiu Y, Li M, Zhang Y, Liu Y, Zhao Y, Zhang J, Jia Q, Li J. Berberine treatment for weight gain in patients with schizophrenia by regulating leptin rather than adiponectin. Asian J Psychiatr 2022; 67:102896. [PMID: 34773803 DOI: 10.1016/j.ajp.2021.102896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/04/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Berberine could improve antipsychotic-induced weight gain in obese cell lines and animal models. This study aimed to exam the effect of berberine on weight gain in patients with schizophrenia. METHODS Each subject who met DSM-IV-TR criteria for schizophrenia had been on stable dose of a single antipsychotic for at least one month. In an 8-week randomized, double-blind, placebo-controlled study, subjects received either berberine (900 mg per day) or placebo. Anthropometric parameters, leptin and adiponectin were measured at baseline, week 4, and week 8. RESULTS A total of 65 patients were enrolled, 49 of which completed the treatment. At the 8th week, the mean weight of patients in the berberine group (N = 27) lost 1.10 kg, while in the placebo group (N = 22) gained 1.45 kg. There were significant differences in body weight (Ftime*group=10.493, P = 0.001), BMI (Ftime*group=9.344, P = 0.002) and leptin (Ftime*group=6.265, P = 0.003). Further, the change of leptin had significant positive correlations with the changes of body weight(r = 0.395, P = 0.041) and BMI(r = 0.389, P = 0.045). There was no significant difference in adverse events between the two groups (P > 0.05). CONCLUSION This study suggests that berberine is a potential weight loss and weight maintenance drug for patients with schizophrenia. The effect of berberine on weight gain may be related to the regulation of leptin, but not adiponectin.
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Affiliation(s)
- Yuying Qiu
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Meijuan Li
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Yonghui Zhang
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Ying Liu
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Yongping Zhao
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Jing Zhang
- Institute of Mental Health, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qiong Jia
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Jie Li
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China.
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Molina JD, Avila S, Rubio G, López-Muñoz F. Metabolomic connections between schizophrenia, antipsychotic drugs and metabolic syndrome: A variety of players. Curr Pharm Des 2021; 27:4049-4061. [PMID: 34348619 DOI: 10.2174/1381612827666210804110139] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/02/2021] [Indexed: 12/08/2022]
Abstract
BACKGROUND Diagnosis of schizophrenia lacks of reliable medical diagnostic tests and robust biomarkers applied to clinical practice. Schizophrenic patients undergoing treatment with antipsychotics suffer a reduced life expectancy due to metabolic disarrangements that co-exist with their mental illness and predispose them to develop metabolic syndrome, also exacerbated by medication. Metabolomics is an emerging and potent technology able to accelerate this biomedical research. <P> Aim: This review focus on a detailed vision of the molecular mechanisms involved both in schizophrenia and antipsychotic-induced metabolic syndrome, based on innovative metabolites that consistently change in nascent metabolic syndrome, drug-naïve, first episode psychosis and/or schizophrenic patients compared to healthy subjects. <P> Main lines: Supported by metabolomic approaches, although not exclusively, noteworthy variations are reported mainly through serum samples of patients and controls in several scenes: 1) alterations in fatty acids, inflammatory response indicators, amino acids and biogenic amines, biometals and gut microbiota metabolites (schizophrenia); 2) alterations in metabolites involved in carbohydrate and gut microbiota metabolism, inflammation and oxidative stress (metabolic syndrome), some of them shared with the schizophrenia scene; 3) alterations of cytokines secreted by adipose tissue, phosphatidylcholines, acylcarnitines, Sirtuin 1, orexin-A and changes in microbiota composition (antipsychotic-induced metabolic syndrome). <P> Conclusion: Novel insights into the pathogenesis of schizophrenia and metabolic side-effects associated to its antipsychotic treatment, represent an urgent request for scientifics and clinicians. Leptin, carnitines, adiponectin, insulin or interleukin-6 represent some examples of candidate biomarkers. Cutting-edge technologies like metabolomics have the power of strengthen research for achieving preventive, diagnostic and therapeutical solutions for schizophrenia.
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Affiliation(s)
- Juan D Molina
- Clinical Management Area of Psychiatry and Mental Health, Psychiatric Service, 12 de Octubre University Hospital, Madrid. Spain
| | - Sonia Avila
- Department of Psychiatry, Faculty of Medicine, Complutense University of Madrid. Spain
| | - Gabriel Rubio
- Clinical Management Area of Psychiatry and Mental Health, Psychiatric Service, 12 de Octubre University Hospital, Madrid. Spain
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Cernea S, Dima L, Correll CU, Manu P. Pharmacological Management of Glucose Dysregulation in Patients Treated with Second-Generation Antipsychotics. Drugs 2021; 80:1763-1781. [PMID: 32930957 DOI: 10.1007/s40265-020-01393-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Fasting hyperglycemia, impaired glucose tolerance, prediabetes, and diabetes are frequently present in patients treated with second-generation antipsychotics (SGAPs) for schizophrenia, bipolar disorder, and other severe mental illnesses. These drugs are known to produce weight gain, which may lead to insulin resistance, glucose intolerance, and metabolic syndrome, which constitute important risk factors for the emergence of diabetes. The aim of this review was to formulate therapeutic guidelines for the management of diabetes in patients treated with SGAPs, based on the association between SGAP-induced weight gain and glucose dysregulation. A systematic search in PubMed from inception to March 2020 for randomized controlled trials (RCTs) of diabetes or prediabetes in patients treated with SGAPs was performed. PubMed was also searched for the most recent clinical practice guidelines of interventions for co-morbid conditions associated with diabetes mellitus (DM) (arterial hypertension and dyslipidemia), lifestyle interventions and switching from high metabolic liability SGAPs to safer SGAPs. The search identified 14 RCTs in patients treated with SGAPs. Drug therapy using metformin as first-line therapy and glucagon-like peptide-1 receptor agonists (GLP-1 RAs) or perhaps sodium-glucose cotransporter-2 (SGLT2) inhibitors as add-on therapy, might be preferred in these patients as well, as they favorably influence glucose metabolism and body mass index, and provide cardio-renal benefits in general to the DM population, although for the SGLT-2 inhibitors there are no RCTs in this specific patient category so far. Metformin is also useful for treatment of prediabetes. Arterial hypertension should be treated with angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers, and statins should be used for correction of dyslipidemia. The outcome of lifestyle-changing interventions has been disappointing. Switching from clozapine, olanzapine, or quetiapine to lower cardiometabolic-risk SGAPs, like aripiprazole, brexpiprazole, cariprazine, lurasidone, or ziprasidone, has been recommended.
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Affiliation(s)
- Simona Cernea
- Faculty of Medicine/Department M4/Internal Medicine IV, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mureș, Romania.,Diabetes, Nutrition and Metabolic Diseases Outpatient Unit, Emergency County Clinical Hospital, Târgu Mureş, Romania
| | - Lorena Dima
- Department of Fundamental Disciplines and Clinical Prevention, Faculty of Medicine, Universitatea Transilvania, Nicolae Balcescu Str 59, Brașov, 500019, Romania.
| | - Christoph U Correll
- Charite Universitaetsmedizin, Department of Child and Adolescent Psychiatry, Berlin, and Campus Virchow-Klinikum, Mittelallee 5A, Berlin, 13353, Germany.,Department of Psychiatry and Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA.,Department of Psychiatry and Molecular Medicine, Zucker Hillside Hospital, Northwell Health System, Glen Oaks, NY, USA
| | - Peter Manu
- Department of Psychiatry, Hofstra Northwell School of Medicine, Hempstead, NY, USA.,Department of Medicine, Hofstra Northwell School of Medicine, Hempstead, NY, USA.,South Oaks Hospital, Northwell Health System, Amityville, NY, USA
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Hirigo AT, Teshome T, Abera Gitore W, Worku E. Prevalence and Associated Factors of Dyslipidemia Among Psychiatric Patients on Antipsychotic Treatment at Hawassa University Comprehensive Specialized Hospital. Nutr Metab Insights 2021; 14:11786388211016842. [PMID: 34035653 PMCID: PMC8132100 DOI: 10.1177/11786388211016842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/15/2021] [Indexed: 12/23/2022] Open
Abstract
Background: Dyslipidemia is one of the adverse metabolic outcomes associated with psychotropic medications and the nature of the mental illness itself. Therefore, this study aimed to assess magnitude of dyslipidemia and associated factors among patients with severe mental illness on antipsychotic treatments. Methods: A cross-sectional study was conducted among 245 patients with severe mental illness in Hawassa University Comprehensive Specialized Hospital, Sidama Regional state, Southern Ethiopia. Socio-demographic and other important data were collected using a structured questionnaire through a systematic random sampling technique. Individual dyslipidemia was characterized by the National Cholesterol Education Program Adult Treatment Panel-III (NCEP ATP-III) guideline. Results: Mean total cholesterol (TC) was significantly higher in males when compared to females (162.2 mg/dl vs 121 mg/dl, P = .023). While, mean LDL-cholesterol was significantly higher in females when compared to males (100.9 mg/dl vs 93.6 mg/dl, P = .028). Overall 58.4% (95% CI: 52.2-64.8) of participants had at least 1 dyslipidemia. The prevalence of TC ⩾200 mg/dl, HDL-cholesterol <40 mg/dl, triglyceride (TG) and LDL-cholesterol were 61 (24.9%), 75 (30.6%), 66 (26.9%), and 47 (19.2%), respectively. Female sex and smoking were significantly and positively associated with LDL-c dyslipidemia, the aOR (95% CI) were 2.1 (1.0-4.2) for female sex and 3.4 (1.1-10.5) for smoking. Also, Age >40 years was significantly associated with TC dyslipidemia, the aOR (95% CI) was 2.0 (1.1-3.7). Conclusion: More than half of psychiatric patients are at risk of developing cardiovascular and other related health problems. Therefore, periodic screening of lipid profiles during healthcare follow-up is mandatory to limit risks of cardiovascular-related comorbidities among patients with severe mental illness.
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Affiliation(s)
- Agete Tadewos Hirigo
- College of Medicine and Health Science, Faculty of Medicine, School of Medical Laboratory Sciences, Hawassa University, Hawassa City, Sidama Regional State, Southern-Ethiopia
| | - Tesfaye Teshome
- College of Medicine and Health Science, Faculty of Medicine, Physiology Unit, Hawassa University, Hawassa City, Sidama Regional State, Southern-Ethiopia
| | - Wondwossen Abera Gitore
- College of Medicine and Health Science, Faculty of Medicine, School of Medical Laboratory Sciences, Hawassa University, Hawassa City, Sidama Regional State, Southern-Ethiopia
| | - Endale Worku
- College of Medicine and Health Science, Hawassa Comprehensive Specialized Hospital Laboratory, Hawassa University, Hawassa City, Sidama Regional State, Southern-Ethiopia
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Carpéné C, Les F, Mercader J, Gomez-Zorita S, Grolleau JL, Boulet N, Fontaine J, Iglesias-Osma MC, Garcia-Barrado MJ. Opipramol Inhibits Lipolysis in Human Adipocytes without Altering Glucose Uptake and Differently from Antipsychotic and Antidepressant Drugs with Adverse Effects on Body Weight Control. Pharmaceuticals (Basel) 2020; 13:ph13030041. [PMID: 32151075 PMCID: PMC7151722 DOI: 10.3390/ph13030041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 12/15/2022] Open
Abstract
Treatment with several antipsychotic drugs exhibits a tendency to induce weight gain and diabetic complications. The proposed mechanisms by which the atypical antipsychotic drug olanzapine increases body weight include central dysregulations leading to hyperphagia and direct peripheral impairment of fat cell lipolysis. Several investigations have reproduced in vitro direct actions of antipsychotics on rodent adipocytes, cultured preadipocytes, or human adipose tissue-derived stem cells. However, to our knowledge, no such direct action has been described in human mature adipocytes. The aim of the present study was to compare in human adipocytes the putative direct alterations of lipolysis by antipsychotics (haloperidol, olanzapine, ziprazidone, risperidone), antidepressants (pargyline, phenelzine), or anxiolytics (opipramol). Lipolytic responses to the tested drugs, and to recognized lipolytic (e.g., isoprenaline) or antilipolytic agents (e.g., insulin) were determined, together with glucose transport and amine oxidase activities in abdominal subcutaneous adipocytes from individuals undergoing plastic surgery. None of the tested drugs were lipolytic. Surprisingly, only opipramol exhibited substantial antilipolytic properties in the micromolar to millimolar range. An opipramol antilipolytic effect was evident against isoprenaline-, forskolin-, or atrial natriuretic peptide-stimulated lipolysis. Opipramol did not impair insulin activation of glucose transport but inhibited monoamine oxidase (MAO) activity to the same extent as antidepressants recognized as MAO inhibitors (pargyline, harmine, or phenelzine), whereas antipsychotics were inefficient. Considering its unique properties, opipramol, which is not associated with weight gain in treated patients, is a good candidate for drug repurposing because it limits exaggerated lipolysis, prevents hydrogen peroxide release by amine oxidases in adipocytes, and is thereby of potential use to limit lipotoxicity and oxidative stress, two deleterious complications of diabetes and obesity.
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Affiliation(s)
- Christian Carpéné
- Institute of Metabolic and Cardiovascular Diseases, INSERM, UMR1048, Team 1, 31432 Toulouse, France; (N.B.); (J.F.)
- I2MC, University of Toulouse, UMR1048, Paul Sabatier University, 31432 Toulouse, France
- Correspondence:
| | - Francisco Les
- Department of Pharmacy, Faculty of Health Sciences, Universidad San Jorge, 50830 Villanueva de Gállego Zaragoza, Spain;
- Instituto Agroalimentario de Aragón-IA2, CITA-Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Josep Mercader
- Department of Fundamental Biology and Health Sciences, University of the Balearic Islands, 07122 Palma, Spain;
- Balearic Islands Health Research Institute (IdISBa), 07120 Palma, Spain
| | - Saioa Gomez-Zorita
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Research Institute, 48940 Vitoria, Spain;
| | | | - Nathalie Boulet
- Institute of Metabolic and Cardiovascular Diseases, INSERM, UMR1048, Team 1, 31432 Toulouse, France; (N.B.); (J.F.)
- I2MC, University of Toulouse, UMR1048, Paul Sabatier University, 31432 Toulouse, France
| | - Jessica Fontaine
- Institute of Metabolic and Cardiovascular Diseases, INSERM, UMR1048, Team 1, 31432 Toulouse, France; (N.B.); (J.F.)
- I2MC, University of Toulouse, UMR1048, Paul Sabatier University, 31432 Toulouse, France
| | - Mari Carmen Iglesias-Osma
- Laboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León (INCyL), University of Salamanca, 37007 Salamanca, Spain; (M.C.I.-O.); (M.J.G.-B.)
- Laboratory of Neuroendocrinology and Obesity, Institute of Biomedical Research of Salamanca (IBSAL), University of Salamanca, 37007 Salamanca, Spain
- Department of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
| | - Maria José Garcia-Barrado
- Laboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León (INCyL), University of Salamanca, 37007 Salamanca, Spain; (M.C.I.-O.); (M.J.G.-B.)
- Laboratory of Neuroendocrinology and Obesity, Institute of Biomedical Research of Salamanca (IBSAL), University of Salamanca, 37007 Salamanca, Spain
- Department of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
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Chen CYA, Goh KK, Chen CH, Lu ML. The Role of Adiponectin in the Pathogenesis of Metabolic Disturbances in Patients With Schizophrenia. Front Psychiatry 2020; 11:605124. [PMID: 33551872 PMCID: PMC7854923 DOI: 10.3389/fpsyt.2020.605124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/21/2020] [Indexed: 12/15/2022] Open
Abstract
Antipsychotic-induced metabolic disturbance is a common adverse event occurring in patients treated with antipsychotic drugs. The mechanisms underlying metabolic dysregulation are complex, involving various neurochemical and hormonal systems, the interaction of genetic and lifestyle risk factors, and the antipsychotic drug prescribed. Recently, there has been increasing interest in the relationship between antipsychotic-induced metabolic disturbances and body weight regulatory hormones such as adiponectin. Adiponectin, an adipocyte-derived protein related to insulin sensitivity, weight gain, and anti-inflammation, has attracted great attention because of its potential role of being a biomarker to predict cardiovascular and metabolic diseases. Previous studies regarding the effects of antipsychotics on blood adiponectin levels have shown controversial results. Several factors might contribute to those inconsistent results, including different antipsychotic drugs, duration of antipsychotic exposure, age, sex, and ethnicity. Here we summarize the existing evidence on the link between blood adiponectin levels and metabolic disturbances related to antipsychotic drugs in patients with schizophrenia. We further discuss the effects of individual antipsychotics, patients' gender, ethnicity, age, and treatment duration on those relationships. We propose that olanzapine and clozapine might have a time-dependent biphasic effect on blood adiponectin levels in patients with schizophrenia.
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Affiliation(s)
- Cynthia Yi-An Chen
- Department of Psychiatry, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Kah Kheng Goh
- Department of Psychiatry, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Psychiatric Research Center, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chun-Hsin Chen
- Department of Psychiatry, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Psychiatric Research Center, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Mong-Liang Lu
- Department of Psychiatry, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Psychiatric Research Center, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Sarsenbayeva A, Marques-Santos CM, Thombare K, Di Nunzio G, Almby KE, Lundqvist M, Eriksson JW, Pereira MJ. Effects of second-generation antipsychotics on human subcutaneous adipose tissue metabolism. Psychoneuroendocrinology 2019; 110:104445. [PMID: 31563732 DOI: 10.1016/j.psyneuen.2019.104445] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Metabolic syndrome is prevalent in up to 50% of schizophrenia patients, which reduces their quality of life and their compliance with the treatment. It is unclear whether metabolic adverse effects of these agents are due to their direct effect on insulin-sensitive tissues or are secondary to increased adiposity. The study aimed to investigate the direct effects of the second-generation antipsychotics olanzapine and aripiprazole on human subcutaneous adipose tissue and isolated adipocyte metabolism. METHODS Abdominal subcutaneous adipose tissue needle biopsies were taken from 72 healthy subjects (49 F/23 M; age: 19-78 yr; BMI: 20.0-35.6 kg/m2). Isolated adipocytes or adipose tissue were respectively pre-incubated short- (30 min) and long-term (24 h, 72 h) with or without olanzapine (0.004 μM - 20 μM) and aripiprazole (0.002 μM - 100 μM). Pre-incubated adipose tissue was then snap-frozen for mRNA expression analysis of adipokines genes and genes involved in inflammation, adipogenesis, and mitochondrial function. Isolated adipocytes were used to measure basal and insulin-stimulated glucose uptake and lipolysis. RESULTS Acute treatment with a therapeutic concentration of olanzapine decreases basal lipolysis in isolated adipocytes; this effect was not observed after long-term incubation with the drug. Supra-therapeutic concentration of aripiprazole reduced basal and insulin-stimulated glucose uptake after short- and long-term pre-incubation. Both drugs at supra-therapeutic concentrations downregulated the expression of the pro-inflammatory cytokines IL6 and IL1B genes after 72 h incubation. Similarly, supra-therapeutic concentrations of both drugs and therapeutic concentration of olanzapine, reduced the expression of PPARGC1A, PDK4, and CPT1B genes involved in the regulation of mitochondrial functions. Neither of the antipsychotics affected the expression of the main adipokines LEP and ADIPOQ, genes involved in the regulation of lipid metabolism, LPL and FASN, nor the master adipogenesis regulator, PPARG. CONCLUSION Therapheutic concentrations of olanzapine and aripiprazole have a moderate direct effect on adipocyte lipid and glucose metabolism, respectively. At supra-therapeutic concentrations, both of the antipsychotics seem to act as anti-inflammatory agents and mildly suppressed genes involved in the regulation of mitochondrial functions, which could potentially contribute to metabolic adverse effects. Alternatively, second-generation antipsychotics could induce metabolic side effects via acting on other insulin-sensitive tissues and central nervous system.
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Affiliation(s)
- Assel Sarsenbayeva
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
| | - Cátia M Marques-Santos
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
| | - Ketan Thombare
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
| | - Giada Di Nunzio
- The Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.
| | - Kristina E Almby
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
| | - Martin Lundqvist
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
| | - Jan W Eriksson
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
| | - Maria J Pereira
- Department of Medical Sciences, Clinical Diabetes and Metabolism, Uppsala University, Uppsala, Sweden.
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The Novel Perspectives of Adipokines on Brain Health. Int J Mol Sci 2019; 20:ijms20225638. [PMID: 31718027 PMCID: PMC6887733 DOI: 10.3390/ijms20225638] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 12/13/2022] Open
Abstract
First seen as a fat-storage tissue, the adipose tissue is considered as a critical player in the endocrine system. Precisely, adipose tissue can produce an array of bioactive factors, including cytokines, lipids, and extracellular vesicles, which target various systemic organ systems to regulate metabolism, homeostasis, and immune response. The global effects of adipokines on metabolic events are well defined, but their impacts on brain function and pathology remain poorly defined. Receptors of adipokines are widely expressed in the brain. Mounting evidence has shown that leptin and adiponectin can cross the blood–brain barrier, while evidence for newly identified adipokines is limited. Significantly, adipocyte secretion is liable to nutritional and metabolic states, where defective circuitry, impaired neuroplasticity, and elevated neuroinflammation are symptomatic. Essentially, neurotrophic and anti-inflammatory properties of adipokines underlie their neuroprotective roles in neurodegenerative diseases. Besides, adipocyte-secreted lipids in the bloodstream can act endocrine on the distant organs. In this article, we have reviewed five adipokines (leptin, adiponectin, chemerin, apelin, visfatin) and two lipokines (palmitoleic acid and lysophosphatidic acid) on their roles involving in eating behavior, neurotrophic and neuroprotective factors in the brain. Understanding and regulating these adipokines can lead to novel therapeutic strategies to counteract metabolic associated eating disorders and neurodegenerative diseases, thus promote brain health.
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Ferreira V, Grajales D, Valverde ÁM. Adipose tissue as a target for second-generation (atypical) antipsychotics: A molecular view. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1865:158534. [PMID: 31672575 DOI: 10.1016/j.bbalip.2019.158534] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/18/2019] [Accepted: 10/23/2019] [Indexed: 12/14/2022]
Abstract
Schizophrenia is a neuropsychiatric disorder that chronically affects 21 million people worldwide. Second-generation antipsychotics (SGAs) are the cornerstone in the management of schizophrenia. However, despite their efficacy in counteracting both positive and negative symptomatology of schizophrenia, recent clinical observations have described an increase in the prevalence of metabolic disturbances in patients treated with SGAs, including abnormal weight gain, hyperglycemia and dyslipidemia. While the molecular mechanisms responsible for these side-effects remain poorly understood, increasing evidence points to a link between SGAs and adipose tissue depots of white, brown and beige adipocytes. In this review, we survey the present knowledge in this area, with a particular focus on the molecular aspects of adipocyte biology including differentiation, lipid metabolism, thermogenic function and the browning/beiging process.
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Affiliation(s)
- Vitor Ferreira
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Madrid, Spain
| | - Diana Grajales
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Madrid, Spain
| | - Ángela M Valverde
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Madrid, Spain.
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Ballon JS, Pajvani UB, Mayer LES, Freyberg Z, Freyberg R, Contreras I, Rosenbaum M, Leibel RL, Lieberman JA. Pathophysiology of drug induced weight and metabolic effects: findings from an RCT in healthy volunteers treated with olanzapine, iloperidone, or placebo. J Psychopharmacol 2018; 32:533-540. [PMID: 29444618 PMCID: PMC6996198 DOI: 10.1177/0269881118754708] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Second generation antipsychotics are prescribed for an increasing number of psychiatric conditions, despite variable associations with weight gain, dyslipidemia, and impaired glucose tolerance. The mechanism(s) of the apparent causal relationships between these medications and metabolic effects have been inadequately defined and are potentially confounded by genetic risk of mental illness, attendant lifestyle, and concomitant medications. Therefore, we conducted a study in which 24 healthy volunteers were randomized to olanzapine (highly weight-gain liability), iloperidone (less weight-gain liability), or placebo treatment for 28 days under double-blind conditions. We hypothesized that antipsychotics induce weight gain primarily through increased caloric intake, which causes secondary dyslipidemia and insulin resistance. Subjects were phenotyped pre- and post-treatment for body weight, adiposity by dual energy X-ray absorptiometry, energy expenditure by indirect calorimetry, food intake, oral glucose tolerance, plasma lipids, glucose, insulin, and other hormones. We found significantly increased food intake and body weight but no change in energy expenditure in olanzapine-treated subjects, with associated trends towards lipid abnormalities and insulin resistance the extent of which were presumably limited by the duration of treatment. Iloperidone treatment led to modest non-significant and placebo no weightgain, lipid increases and alterations in insulin metabolism. We conclude that second generation antipsychotic drugs, as represented by olanzapine, produce their weight and metabolic effects, predominantly, by increasing food intake which leads to weight gain that in turn induces metabolic consequences, but also through other direct effects on lipid and glucose metabolism independant of food intake and weight gain.
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Affiliation(s)
- Jacob S Ballon
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Utpal B Pajvani
- Department of Medicine, College of Physicians & Surgeons, Columbia University, New York, USA
| | - Laurel ES Mayer
- Department of Psychiatry, College of Physicians & Surgeons, Columbia University, New York, USA
| | - Zachary Freyberg
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robin Freyberg
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ignacio Contreras
- Department of Medicine, College of Physicians & Surgeons, Columbia University, New York, USA
| | - Michael Rosenbaum
- Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, USA
| | - Rudolph L Leibel
- Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, USA
| | - Jeffrey A Lieberman
- Department of Psychiatry, College of Physicians & Surgeons, Columbia University, New York, USA
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del Campo A, Bustos C, Mascayano C, Acuña-Castillo C, Troncoso R, Rojo LE. Metabolic Syndrome and Antipsychotics: The Role of Mitochondrial Fission/Fusion Imbalance. Front Endocrinol (Lausanne) 2018; 9:144. [PMID: 29740394 PMCID: PMC5924798 DOI: 10.3389/fendo.2018.00144] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 03/16/2018] [Indexed: 12/18/2022] Open
Abstract
Second-generation antipsychotics (SGAs) are known to increase cardiovascular risk through several physiological mechanisms, including insulin resistance, hepatic steatosis, hyperphagia, and accelerated weight gain. There are limited prophylactic interventions to prevent these side effects of SGAs, in part because the molecular mechanisms underlying SGAs toxicity are not yet completely elucidated. In this perspective article, we introduce an innovative approach to study the metabolic side effects of antipsychotics through the alterations of the mitochondrial dynamics, which leads to an imbalance in mitochondrial fusion/fission ratio and to an inefficient mitochondrial phenotype of muscle cells. We believe that this approach may offer a valuable path to explain SGAs-induced alterations in metabolic homeostasis.
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Affiliation(s)
- Andrea del Campo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Escuela de Química y Farmacia, Facultad de Ingeniería, Ciencia y Tecnología, Universidad Bernardo O’Higgins, Santiago, Chile
- Programa de Biología Celular y Molecular, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Catalina Bustos
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Carolina Mascayano
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudio Acuña-Castillo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | - Rodrigo Troncoso
- Laboratorio de Investigación en Nutrición y Actividad Física, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Leonel E. Rojo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
- *Correspondence: Leonel E. Rojo,
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Chen J, Huang XF, Shao R, Chen C, Deng C. Molecular Mechanisms of Antipsychotic Drug-Induced Diabetes. Front Neurosci 2017; 11:643. [PMID: 29209160 PMCID: PMC5702456 DOI: 10.3389/fnins.2017.00643] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/06/2017] [Indexed: 12/23/2022] Open
Abstract
Antipsychotic drugs (APDs) are widely prescribed to control various mental disorders. As mental disorders are chronic diseases, these drugs are often used over a life-time. However, APDs can cause serious glucometabolic side-effects including type 2 diabetes and hyperglycaemic emergency, leading to medication non-compliance. At present, there is no effective approach to overcome these side-effects. Understanding the mechanisms for APD-induced diabetes should be helpful in prevention and treatment of these side-effects of APDs and thus improve the clinical outcomes of APDs. In this review, the potential mechanisms for APD-induced diabetes are summarized so that novel approaches can be considered to relieve APD-induced diabetes. APD-induced diabetes could be mediated by multiple mechanisms: (1) APDs can inhibit the insulin signaling pathway in the target cells such as muscle cells, hepatocytes and adipocytes to cause insulin resistance; (2) APD-induced obesity can result in high levels of free fatty acids (FFA) and inflammation, which can also cause insulin resistance. (3) APDs can cause direct damage to β-cells, leading to dysfunction and apoptosis of β-cells. A recent theory considers that both β-cell damage and insulin resistance are necessary factors for the development of diabetes. In high-fat diet-induced diabetes, the compensatory ability of β-cells is gradually damaged, while APDs cause direct β-cell damage, accounting for the severe form of APD-induced diabetes. Based on these mechanisms, effective prevention of APD-induced diabetes may need an integrated approach to combat various effects of APDs on multiple pathways.
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Affiliation(s)
- Jiezhong Chen
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia.,School of Medicine, University of Wollongong, Wollongong, NSW, Australia
| | - Xu-Feng Huang
- School of Medicine, University of Wollongong, Wollongong, NSW, Australia.,Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
| | - Renfu Shao
- Faculty of Science, Health, Education and Engineering, GeneCology Research Centre, University of the Sunshine Coast, Maroochydore, QLD, Australia
| | - Chen Chen
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Chao Deng
- School of Medicine, University of Wollongong, Wollongong, NSW, Australia.,Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
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Body and liver fat content and adipokines in schizophrenia: a magnetic resonance imaging and spectroscopy study. Psychopharmacology (Berl) 2017; 234:1923-1932. [PMID: 28315932 DOI: 10.1007/s00213-017-4598-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 03/11/2017] [Indexed: 12/24/2022]
Abstract
RATIONALE Although antipsychotic treatment often causes weight gain and lipid abnormalities, quantitative analyses of tissue-specific body fat content and its distribution along with adipokines have not been reported for antipsychotic-treated patients. OBJECTIVES The purposes of the present study were to quantitatively assess abdominal and liver fat in patients with schizophrenia on antipsychotic treatment and age- and body mass index (BMI)-matched healthy controls and to evaluate their associations with plasma leptin and adiponectin levels. METHODS In 13 schizophrenia patients on antipsychotic treatment and 11 age- and BMI-matched controls, we simultaneously quantified visceral and subcutaneous fat content using T1-weighted magnetic resonance imaging and liver fat content by 1H magnetic resonance spectroscopy. Associations of tissue-specific fat content with plasma levels of leptin and adiponectin were evaluated. RESULTS Plasma adiponectin level (μg/mL) was not statistically different between groups (7.02 ± 2.67 vs. 7.59 ± 2.92), whereas plasma leptin level (ng/mL) trended to be higher in patients than in controls (11.82 ± 7.89 vs. 7.93 ± 5.25). The values of liver fat (%), visceral fat (L), and subcutaneous fat (L) were 9.64 ± 8.03 vs. 7.07 ± 7.35, 4.41 ± 1.64 vs. 3.31 ± 1.97, and 8.37 ± 3.34 vs. 7.16 ± 2.99 in patients vs. controls, respectively. Liver fat content was inversely correlated with adiponectin in controls (r = - 0.87, p < 0.001) but not in patients (r = - 0.26, p = 0.39). In both groups, visceral fat was inversely associated with adiponectin (controls : r = - 0.66, p = 0.03; patients : r = - 0.65, p = 0.02), while subcutaneous fat was positively correlated with leptin (controls : r = 0.90, p < 0.001; patients : r = 0.67, p = 0.01). CONCLUSIONS These findings suggest that antipsychotic treatment may disrupt the physiological relationship between liver fat content and adiponectin but does not essentially affect the associations of adiponectin and leptin with visceral and subcutaneous compartments.
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Lee JS, Kwon JS, Kim D, Kim SW, Kim JJ, Kim JH, Nam HJ, Ryu S, Park IH, An SK, Oh HS, Won S, Lee K, Lee KY, Lee SH, Lee YS, Yi JS, Hong KS, Joo YH. Prevalence of Metabolic Syndrome in Patients with Schizophrenia in Korea: A Multicenter Nationwide Cross-Sectional Study. Psychiatry Investig 2017; 14:44-50. [PMID: 28096874 PMCID: PMC5240463 DOI: 10.4306/pi.2017.14.1.44] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/02/2016] [Accepted: 06/03/2016] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE We designed a nationwide study with limited exclusion criteria to investigate the prevalence of metabolic syndrome (MetS) in Korea and its relationship with antipsychotic medications. METHODS This multicenter, cross-sectional, and observational study included patients diagnosed with schizophrenia or schizoaffective disorder. Sixteen hospitals enrolled 845 patients aged 18 to 65 years prescribed any antipsychotic medication between August 2011 and August 2013. MetS was diagnosed using the criteria of the modified Adult Treatment Panel III of the National Cholesterol Education Program with the Korean abdominal obesity definition (waist circumference ≥85 cm in women, ≥90 cm in men). RESULTS The prevalence of MetS in all patients was 36.5% and was significantly higher in men than women (men, 40.8%; women, 32.2%) and was significantly correlated with age [odds ratio (OR) 1.02] and duration of illness (OR 1.03). The prevalence of MetS across antipsychotic drugs in the major monotherapy group was as follows: 18.8% for quetiapine, 22.0% for aripiprazole, 33.3% for both amisulpride and paliperidone, 34.0% for olanzapine, 35% for risperidone, 39.4% for haloperidol, and 44.7% for clozapine. CONCLUSION The prevalence of MetS is very high in patients with schizophrenia or schizoaffective disorder. Screening and monitoring of MetS is also strongly recommended.
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Affiliation(s)
- Jung Sun Lee
- Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Jun Soo Kwon
- Department of Psychiatry, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Daeho Kim
- Department of Psychiatry, College of Medicine, Hanyang University, Hanyang University Medical Center, Seoul, Republic of Korea
| | - Sung-Wan Kim
- Department of Psychiatry, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jae-Jin Kim
- Department of Psychiatry, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - Jong-Hoon Kim
- Department of Psychiatry, Gil Medical Center, Gachon University School of Medicine, Neuroscience Research Institute, Gachon University, Incheon, Republic of Korea
| | - Hee Jung Nam
- Department of Psychiatry, Seoul Medical Center, Seoul, Republic of Korea
| | - Seunghyong Ryu
- Department of Psychiatry, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Il Ho Park
- Department of Psychiatry & Behavioral Neuroscience, Catholic Kwandong University, International St. Mary's Hospital, Incheon, Republic of Korea
| | - Suk Kyoon An
- Department of Psychiatry, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - Hong-Seok Oh
- Yongin Psychiatric Research Institute, Yongin Mental Hospital, Yongin, Republic of Korea
| | - Seunghee Won
- Department of Psychiatry, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Kanguk Lee
- Department of Psychiatry, Kangwon National University School of Medicine, Kangwon National University Hospital, Chuncheon, Republic of Korea
| | - Kyu Young Lee
- Department of Psychiatry, Eulji University School of Medicine, Eulji General Hospital, Seoul, Republic of Korea
| | - Seung-Hwan Lee
- Department of Psychiatry, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Yu Sang Lee
- Yongin Psychiatric Research Institute, Yongin Mental Hospital, Yongin, Republic of Korea
| | - Jung-Seo Yi
- Department of Psychiatry, College of Medicine, Hallym University, Kangnam Sacred Heart Hospital, Seoul, Republic of Korea
| | - Kyung Sue Hong
- Department of Psychiatry, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Yeon Ho Joo
- Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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Adiposity-independent hypoadiponectinemia as a potential marker of insulin resistance and inflammation in schizophrenia patients treated with second generation antipsychotics. Schizophr Res 2016; 174:132-136. [PMID: 27211515 DOI: 10.1016/j.schres.2016.04.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 04/26/2016] [Accepted: 04/28/2016] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The purpose of this study was to explore body fat independent effect of second generation antipsychotics (SGAs) on measures of glucose and adipokine homeostasis, and markers of inflammation. METHOD Eight non-diabetic men with schizophrenia (age: 55±3years, BMI: 29.7±1.2kg/m(2)) on SGAs were studied after an overnight fast. DXA and single-cut CT of abdomen were respectively used for the assessment of total body and abdominal fat. Blood samples were collected for measurements of glucose, insulin, leptin, adiponectin, C-reactive protein (CRP), and TNF-α. Data in schizophrenic subjects were compared to eight age (55±2.8years) and BMI (29.6±1.1kg/m(2)) matched healthy men. RESULTS The results were significant for markedly decreased serum adiponectin in schizophrenia patients (4.6±0.9 vs 11.1±1.5ng/mL, p=0.001). Lower levels of adiponectin in schizophrenia men were associated with significant increases in insulin resistance (4.2±0.7 vs 1.7±0.4, p=0.004), CRP (3.5±1.2 vs 1.2±0.3, p=0.037), and leptin (12±1.4 vs 8.5±1.4ng/mL, p=0.05). Various measures of adiposity, including fat mass index (FMI) and abdominal fat were not different in the two study groups. CONCLUSIONS These findings in the context of comparable age and total body/abdominal fat mass are assumed to be either disease specific, and/or treatment inflicted. The definitive invoking etiology and a presumptive role of hypoadiponectinemia in the development of insulin resistance and increased risk of inflammation warrant future investigation.
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Bartoli F, Crocamo C, Clerici M, Carrà G. Second-generation antipsychotics and adiponectin levels in schizophrenia: A comparative meta-analysis. Eur Neuropsychopharmacol 2015; 25:1767-74. [PMID: 26164075 DOI: 10.1016/j.euroneuro.2015.06.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 06/05/2015] [Accepted: 06/12/2015] [Indexed: 12/16/2022]
Abstract
People with schizophrenia treated with second-generation antipsychotics (SGAs) have lower plasma adiponectin levels, as compared with general population, that may lead to metabolic abnormalities. However, the contribution of different SGAs on adiponectin dysregulation is still unclear. The objective of this systematic review and meta-analysis was to estimate differences in adiponectin levels among people with schizophrenia treated with different SGAs. We systematically searched for observational studies published up to March 2015 in main electronic databases. Different SGAs were included if data on adiponectin were available from at least three different samples involving as a minimum five participants per treatment arm. Standardized mean differences with relevant 95% confidence intervals were generated. I(2) was used to test heterogeneity among studies. Eight studies were included with data suitable for carrying out four different comparisons: Clozapine vs. Olanzapine (including n=877 individuals with schizophrenia); Clozapine vs. Risperidone (n=660); Olanzapine vs. Risperidone (n=738); Quetiapine vs. Risperidone (n=186). There were no differences on adiponectin levels between people taking Clozapine and those taking Olanzapine (p=0.86), but high heterogeneity was detected (I(2)=82%). Both individuals taking Clozapine (p<0.001; I(2)=0%) and those taking Olanzapine (p=0.02; I(2)=9%), but not subjects treated with Quetiapine (p=0.47; I(2)=0%), had adiponectin levels significantly lower than people taking Risperidone. Our findings are consistent with previous evidence showing greater metabolic abnormalities attributable to Clozapine and Olanzapine, as compared with other SGAs. Although mechanisms whereby both these SGAs influence adiponectin remain unexplained, its reduction might mediate relevant abnormalities. Prospective evaluations of long-term effects of different SGAs on adiponectin are needed.
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Affiliation(s)
- Francesco Bartoli
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza (MB), Italy.
| | - Cristina Crocamo
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza (MB), Italy
| | - Massimo Clerici
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza (MB), Italy
| | - Giuseppe Carrà
- Division of Psychiatry, University College London, 6th Floor, Maple House, 149 Tottenham Court Road, London W1T 7NF, UK
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Kruse G, Wong BJO, Duh MS, Lefebvre P, Lafeuille MH, Fastenau JM. Systematic Literature Review of the Methods Used to Compare Newer Second-Generation Agents for the Management of Schizophrenia: A focus on Health Technology Assessment. PHARMACOECONOMICS 2015; 33:1049-1067. [PMID: 25963579 DOI: 10.1007/s40273-015-0285-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND The challenges of comparative effectiveness to support health technology assessment (HTA) agencies are important considerations in the choices of antipsychotic medications for the treatment of schizophrenia. OBJECTIVES Our aim was to assess the study methods used and outcomes reported in the published literature to address the question of comparative effectiveness of newer antipsychotic agents and the adequacy and availability of evidence to support HTA agencies. DATA SOURCE A systematic search of the PubMed database from 1 January 2009 to 30 September 2013 was conducted to identify studies evaluating new atypical antipsychotics reporting on comparative effectiveness. STUDY SELECTION The systematic review comprised of studies on schizophrenia patients where at least two drugs were being compared and at least one treatment group received one of the following second-generation antipsychotics: risperidone, olanzapine, aripiprazole, paliperidone, asenapine, iloperidone, lurasidone, and quetiapine. The included studies were also required to have an efficacy, safety or economic outcome, such as Positive and Negative Syndrome Scale (PANSS) score, weight gain, resource utilization, or costs. STUDY APPRAISAL AND SYNTHESIS METHODS Two reviewers (BW and GK) independently applied the inclusion criteria. Disagreements between reviewers were resolved by consensus, referring to the original sources. Information on the methodology and outcomes was collected for each included study. This included study description, head-to-head drug comparison, patient population, study methodology, statistical methods, reported outcomes, study support, and journal type. RESULTS A total of 198 studies were identified from electronic search methods. The largest category of studies was randomized controlled trials [RCTs] (N = 73; 36.9%), which were largely directed at the regulatory endpoint. Fewer studies were undertaken for HTA-purposes cohort studies (N = 53; 26.8%), meta-analyses (N = 32; 16.2%), economic studies (N = 14; 7.1%), and cross-sectional studies (N = 13; 6.6%). Direct head-to-head comparisons preferred by HTA were dominated by the comparison involving olanzapine and risperidone, representing 149 (75.3%) and 119 (60.1%) studies, respectively. RCTs, which are the primary study type for regulatory submissions, showed a lack of bias. Studies aimed at HTA were not as well performed. Cohort studies suffered from bias in the selection of comparison groups, lack of control for confounders, and differential dropout rates. As a group, cross-sectional studies scored poorly for bias, with a primary failure to identify a representative sample. Economic studies showed highly variable bias, with bias in the representation of effectiveness data, model assumptions without validation, and lack of sensitivity analyses. LIMITATIONS One limitation of this systematic review is that it only included studies from 2009 to 2013, potentially excluding some earlier comparator studies, particularly those involving first-generation antipsychotics. CONCLUSIONS This review of comparative effectiveness studies of second-generation antipsychotic agents for schizophrenic patients revealed a wide range of study types, study methodologies, and outcomes. For traditional efficacy outcomes and select safety outcomes, there is strong evidence from many well-conducted studies; however, there are fewer studies of types preferred by HTA with limited head-to-head comparisons and a higher risk of bias in the execution of these studies.
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Affiliation(s)
- Gregory Kruse
- The Wharton School, University of Pennsylvania, Philadelphia, PA, USA
| | - Bruce J O Wong
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA
| | - Mei Sheng Duh
- Analysis Group, Inc., Tenth Floor, 111 Huntington Avenue, Boston, MA, 02199, USA.
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Manu P, Dima L, Shulman M, Vancampfort D, De Hert M, Correll CU. Weight gain and obesity in schizophrenia: epidemiology, pathobiology, and management. Acta Psychiatr Scand 2015; 132:97-108. [PMID: 26016380 DOI: 10.1111/acps.12445] [Citation(s) in RCA: 176] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/27/2015] [Indexed: 01/17/2023]
Abstract
OBJECTIVE To review recent advances in the epidemiology, pathobiology, and management of weight gain and obesity in patients with schizophrenia and to evaluate the extent to which they should influence guidelines for clinical practice. METHOD A Medline literature search was performed to identify clinical and experimental studies published in 2005-2014 decade. RESULTS Weight gain and obesity increase the risk of adult-onset diabetes mellitus and cardiovascular disorders, non-adherence with pharmacological interventions, quality of life, and psychiatric readmissions. The etiology includes adverse effects of antipsychotics, pretreatment/premorbid genetic vulnerabilities, psychosocial and socioeconomic risk factors, and unhealthy lifestyle. Patients with schizophrenia have higher intake of calories in the form of high-density food and lower energy expenditure. The inverse relationship between baseline body mass index and antipsychotic-induced weight gain is probably due to previous antipsychotic exposure. In experimental models, the second-generation antipsychotic olanzapine increased the orexigenic stimulation of hypothalamic structures responsible for energy homeostasis. CONCLUSION The management of weight gain and obesity in patients with schizophrenia centers on behavioural interventions using caloric intake reduction, dietary restructuring, and moderate-intensity physical activity. The decision to switch antipsychotics to lower-liability medications should be individualized, and metformin may be considered for adjunctive therapy, given its favorable risk-benefit profile.
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Affiliation(s)
- P Manu
- The Zucker Hillside Hospital, New York, NY, USA.,Albert Einstein College of Medicine, New York, NY, USA.,Hofstra North Shore - LIJ School of Medicine, Hempstead, NY, USA
| | - L Dima
- Faculty of Medicine, Transilvania University, Brasov, Romania
| | - M Shulman
- The Zucker Hillside Hospital, New York, NY, USA
| | - D Vancampfort
- KU Leuven Department of Rehabilitation Sciences, Leuven, Belgium
| | - M De Hert
- University Psychiatric Centre KU Leuven, Kortenberg, Belgium
| | - C U Correll
- The Zucker Hillside Hospital, New York, NY, USA.,Albert Einstein College of Medicine, New York, NY, USA.,Hofstra North Shore - LIJ School of Medicine, Hempstead, NY, USA
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21
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Metabolic syndrome and obesity among users of second generation antipsychotics: A global challenge for modern psychopharmacology. Pharmacol Res 2015. [PMID: 26218604 DOI: 10.1016/j.phrs.2015.07.022] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Second generation antipsychotics (SGAs), such as clozapine, olanzapine, risperidone and quetiapine, are among the most effective therapies to stabilize symptoms schizophrenia (SZ) spectrum disorders. In fact, clozapine, olanzapine and risperidone have improved the quality of life of billions SZ patients worldwide. Based on the broad spectrum of efficacy and low risk of extrapyramidal symptoms displayed by SGAs, some regulatory agencies approved the use of SGAs in non-schizophrenic adults, children and adolescents suffering from a range of neuropsychiatric disorders. However, increasing number of reports have shown that SGAs are strongly associated with accelerated weight gain, insulin resistance, diabetes, dyslipidemia, and increased cardiovascular risk. These metabolic alterations can develop in as short as six months after the initiation of pharmacotherapy, which is now a controversial fact in public disclosure. Although the percentage of schizophrenic patients, the main target group of SGAs, is estimated in only 1% of the population, during the past ten years there was an exponential increase in the number of SGAs users, including millions of non-SZ patients. The scientific bases of SGAs metabolic side effects are not yet elucidated, but the evidence shows that the activation of transcriptional factor SRBP1c, the D1/D2 dopamine, GABA2 and 5HT neurotransmitions are implicated in the SGAs cardiovascular toxicity. Polypharmacological interventions are either non- or modestly effective in maintaining low cardiovascular risk in SGAs users. In this review we critically discuss the clinical and molecular evidence on metabolic alterations induced by SGAs, the evidence on the efficacy of classical antidiabetic drugs and the emerging concept of antidiabetic polyphenols as potential coadjutants in SGA-induced metabolic disorders.
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22
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Bartoli F, Lax A, Crocamo C, Clerici M, Carrà G. Plasma adiponectin levels in schizophrenia and role of second-generation antipsychotics: a meta-analysis. Psychoneuroendocrinology 2015; 56:179-89. [PMID: 25827962 DOI: 10.1016/j.psyneuen.2015.03.012] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/06/2015] [Accepted: 03/06/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND People with schizophrenia are more likely than general population to suffer from metabolic abnormalities, with second-generation antipsychotics (SGAs) increasing the risk. Low plasma adiponectin levels may lead to metabolic dysregulations but evidence in people with schizophrenia, especially for the role of SGAs, is still inconclusive. OBJECTIVE To compare plasma adiponectin levels between people with schizophrenia and healthy controls, and to estimate the relative effect of schizophrenia and SGAs on adiponectin. METHODS We performed a systematic review and meta-analysis of observational studies published up to 13 June 2014 in main electronic databases. Pooled standardized mean differences (SMDs) between index and control groups were generated. Appropriate subanalyses and additional subgroup analyses were carried out. RESULTS Data from 2735 individuals, 1013 with and 1722 without schizophrenia, respectively, were analysed. Schizophrenia was not associated with lower adiponectin levels (SMD of -0.28, 95%CI: -0.59, 0.04; p=0.09). However, individuals with schizophrenia taking SGAs had plasma levels significantly lower than controls (p=0.002), which was not the case of drug free/drug naïve subjects (p=0.52). As regards single antipsychotic drugs clozapine (p<0.001) and olanzapine (p=0.04)--but not risperidone (p=0.88)--were associated with adiponectin levels lower than controls. CONCLUSIONS People with schizophrenia per se may not have levels of adiponectin lower than controls, though treatment with SGAs is associated with this metabolic abnormality. This bears clinical significance because of hypoadiponectinemia involvement in cardiovascular diseases, even if mechanisms whereby SGAs affect adiponectin remain unexplained. Longitudinal studies evaluating long-term effects of SGAs on adiponectin are needed.
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Affiliation(s)
- Francesco Bartoli
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza, MB, Italy.
| | - Annamaria Lax
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza, MB, Italy
| | - Cristina Crocamo
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza, MB, Italy
| | - Massimo Clerici
- Department of Surgery and Translational Medicine, University of Milano Bicocca, Via Cadore 48, 20900 Monza, MB, Italy
| | - Giuseppe Carrà
- Division of Psychiatry, Faculty of Brain Sciences, University College London, Charles Bell House, 67-73 Riding House Street, London W1W7EJ, UK
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23
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Alan BE, Cengel Kultur SE. Change in metabolic parameters and weight in response to risperidone monotherapy in young children with nonpsychotic disorders: a prospective open-label study. Child Adolesc Ment Health 2015; 20:20-25. [PMID: 32680333 DOI: 10.1111/camh.12033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/20/2013] [Indexed: 12/30/2022]
Abstract
BACKGROUND This study investigates changes in metabolic parameters in prepubertal children after 14-16 weeks of treatment with low-dose risperidone. METHOD Thirty-one children (mean age 5.46 ± 1.98 years) were treated with risperidone (0.25-1 mg/day; 0.01-0.07 mg/kg/day). Patients were excluded if they were using any medication other than risperidone or were diagnosed with any medical problem in addition to a non-psychotic disorder. RESULTS Weight (Δ: 2.51 ± 1.94 kg), height (Δ: 0.03 ± 0.04 cm), BMI (Δ: 0.82 ± 1.4), BMI percentile (Δ: 9.72 ± 16.40), BMI z-score (Δ: 0.33 ± 1.03), triglyceride (Δ: 1.50 ± 23.97 mg/dl), very low density lipoprotein (Δ: 2.99 ± 4.76 mg/dl), insulin (Δ: 3.07 ± 3.38 mIU/ml), and leptin (Δ: 3.02 ± 4.69 ng/ml) were significantly increased (p < .05). CONCLUSION The metabolic side effects of risperidone must be carefully monitored in prepubertal children.
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Affiliation(s)
- Burcu Ersoz Alan
- Child and Adolescent Psychiatry Clinic, Dr. Sami Ulus Women and Children's Health and Diseases Training and Research Hospital, Telsizler/Altindag, Ankara, 06080, Turkey
| | - S Ebru Cengel Kultur
- School of Medicine, Department of Child and Adolescent Psychiatry, Hacettepe University, Sihhiye, Ankara, Turkey
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24
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Gonçalves P, Araújo JR, Martel F. Antipsychotics-induced metabolic alterations: focus on adipose tissue and molecular mechanisms. Eur Neuropsychopharmacol 2015; 25:1-16. [PMID: 25523882 DOI: 10.1016/j.euroneuro.2014.11.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/14/2014] [Accepted: 11/13/2014] [Indexed: 12/19/2022]
Abstract
The use of antipsychotic drugs for the treatment of mood disorders and psychosis has increased dramatically over the last decade. Despite its consumption being associated with beneficial neuropsychiatric effects in patients, atypical antipsychotics (which are the most frequently prescribed antipsychotics) use is accompanied by some secondary adverse metabolic effects such as weight gain, dyslipidemia and glucose intolerance. The molecular mechanisms underlying these adverse effects are not fully understood but have been suggested to involve a dysregulation of adipose tissue homeostasis. As such, the aim of this paper is to review and discuss the role of adipose tissue in the development of secondary adverse metabolic effects induced by atypical antipsychotics. Data analyzed in this article suggest that atypical antipsychotics may increase adipose tissue (particularly visceral adipose tissue) lipogenesis, differentiation/hyperplasia, pro-inflammatory mediator secretion and insulin resistance and decrease adipose tissue lipolysis. Consequently, patients receiving antipsychotic medication could be at risk of developing obesity, type 2 diabetes and cardiovascular disease. A better knowledge of the impact of these drugs on adipose tissue homeostasis may unveil strategies to develop novel antipsychotic drugs with less adverse metabolic effects and to develop adjuvant therapies (e.g. behavioral and nutritional therapies) to neuropsychiatric patients receiving antipsychotic medication.
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Affiliation(s)
- Pedro Gonçalves
- INSERM (French Institute of Health and Medical Research), Unit 1151, INEM (Research Center in Molecular Medicine), Faculty of Medicine of Paris Descartes University, Paris, France
| | - João Ricardo Araújo
- INSERM (French Institute of Health and Medical Research), Unit 786, Molecular Microbial Pathogenesis Unit, Institut Pasteur, Paris, France
| | - Fátima Martel
- Department of Biochemistry (U38-FCT), Faculty of Medicine, University of Porto, Porto, Portugal.
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Ballon JS, Pajvani U, Freyberg Z, Leibel RL, Lieberman JA. Molecular pathophysiology of metabolic effects of antipsychotic medications. Trends Endocrinol Metab 2014; 25:593-600. [PMID: 25190097 DOI: 10.1016/j.tem.2014.07.004] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 11/23/2022]
Abstract
Antipsychotic medications are associated with major metabolic changes that contribute to medical morbidity and a significantly shortened life span. The mechanisms for these changes provide us with a broader understanding of central nervous and peripheral organ-mediated metabolic regulation. This paper reviews an extensive literature regarding putative mechanisms for effects of antipsychotic medications on weight regulation and glucose homeostasis as well as potential inherent metabolic risks of schizophrenia itself. We present a model suggesting that peripheral antipsychotic targets play a critical role in drug-induced weight gain and diabetes. We propose that a better understanding of these mechanisms will be crucial to developing improved treatments for serious mental illnesses as well as providing potentially novel therapeutic targets of metabolic disorders including diabetes.
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Affiliation(s)
- Jacob S Ballon
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Division of Experimental Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA
| | - Utpal Pajvani
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Naomi Berrie Diabetes Institute, New York, NY 10032, USA
| | - Zachary Freyberg
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Division of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA
| | - Rudolph L Leibel
- Naomi Berrie Diabetes Institute, New York, NY 10032, USA; Department of Pediatrics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Jeffrey A Lieberman
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Division of Experimental Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA.
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26
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Klemettilä JP, Kampman O, Seppälä N, Viikki M, Hämäläinen M, Moilanen E, Mononen N, Lehtimäki T, Leinonen E. Association study of the HTR2C, leptin and adiponectin genes and serum marker analyses in clozapine treated long-term patients with schizophrenia. Eur Psychiatry 2014; 30:296-302. [PMID: 25284335 DOI: 10.1016/j.eurpsy.2014.08.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 08/15/2014] [Accepted: 08/20/2014] [Indexed: 02/08/2023] Open
Abstract
Clozapine treatment is associated with weight gain and cardio-metabolic consequences among patients with schizophrenia. Polymorphisms of leptin, serotonin receptor HTR2C and adiponectin genes have been associated with antipsychotic-induced weight gain and metabolic comorbidity. However, the results of the studies so far are inconclusive. The aim of the present study was first to test for a possible role of serum leptin and adiponectin levels as a marker of weight gain in association with inflammatory cytokines/adipokines (IL-6, IL-1Ra, hs-CRP and adipsin), and second to study associations between SNPs LEP rs7799039 (-2548 A/G), ADIPOQ rs1501299 and HTR2C rs1414334 and weight gain and levels of leptin and adiponectin, in 190 patients with schizophrenia on clozapine treatment, with retrospectively assessed weight change and cross-sectionally measured cytokine levels. A strong association was found between serum levels of leptin and weight gain and cytokines/adipokines related to metabolic comorbidity, especially among female patients (in women leptin vs. weight gain, IL-6 and IL-1Ra, P<0.001; in men leptin vs. weight gain, P=0.026, leptin vs. IL-1Ra, P<0.001). In male patients low adiponectin level was a more specific marker of clozapine-induced weight gain (P=0.037). The results of the present study do not support a major role of SNPs LEP rs7799039, ADIPOQ rs1501299 and HTR2C rs1414334 in the regulation of weight gain or association of serum levels of leptin and adiponectin and corresponding studied SNPs in patients with schizophrenia on clozapine treatment.
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Affiliation(s)
- J-P Klemettilä
- Department of Psychiatry, Pitkäniemi Hospital, Tampere University Hospital, 33380 Pitkäniemi, Finland.
| | - O Kampman
- School of Medicine, University of Tampere, 33014 Tampere, Finland; Department of Psychiatry, Seinäjoki Hospital District, 60220 Seinäjoki, Finland
| | - N Seppälä
- Department of Psychiatry, Satakunta Hospital District, 28500 Pori, Finland
| | - M Viikki
- School of Medicine, University of Tampere, 33014 Tampere, Finland; Tampere Mental Health Centre, Hallituskatu 8B, 33200 Tampere, Finland
| | - M Hämäläinen
- The Immunopharmacology Research Group, School of Medicine, University of Tampere and Tampere University Hospital, 33014 Tampere, Finland
| | - E Moilanen
- The Immunopharmacology Research Group, School of Medicine, University of Tampere and Tampere University Hospital, 33014 Tampere, Finland
| | - N Mononen
- Fimlab Laboratories, Department of Clinical Chemistry, School of Medicine, University of Tampere, 33014 Tampere, Finland
| | - T Lehtimäki
- Fimlab Laboratories, Department of Clinical Chemistry, School of Medicine, University of Tampere, 33014 Tampere, Finland
| | - E Leinonen
- Department of Psychiatry, Pitkäniemi Hospital, Tampere University Hospital, 33380 Pitkäniemi, Finland; School of Medicine, University of Tampere, 33014 Tampere, Finland
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Klemettilä JP, Kampman O, Seppälä N, Viikki M, Hämäläinen M, Moilanen E, Leinonen E. Cytokine and adipokine alterations in patients with schizophrenia treated with clozapine. Psychiatry Res 2014; 218:277-83. [PMID: 24837425 DOI: 10.1016/j.psychres.2014.04.049] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Revised: 04/09/2014] [Accepted: 04/29/2014] [Indexed: 12/16/2022]
Abstract
Metabolic syndrome is associated with both schizophrenia and antipsychotic medication, especially clozapine, with alterations in inflammatory cytokines and adipokines. However, the data in this field is heterogeneous and the sample sizes of the patients are limited. In this study we assessed the serum levels of cytokines/adipokines IL-6, IL-1Ra, hs-CRP and adiponectin, and components of metabolic syndrome in 190 patients with treatment resistant schizophrenia treated with clozapine. Substantial metabolic comorbidity was found in this patient group; overweight/obesity, smoking, hypertriglyceridemia, low HDL-cholesterol, high HOMA-IR, low adiponectin levels, elevated hs-CRP levels and elevated IL-1Ra levels. Elevated IL-1Ra levels are associated with insulin resistance, obesity and hypertriglyceridemia. Low adiponectin levels were associated with hypertriglyceridemia, low HDL cholesterol and high glucose, and in male patients also with obesity and high IL-1Ra levels. After controlling for confounding factors age and smoking, levels of IL-1Ra and hs-CRP associated with obesity, and the levels of IL-6 associated with obesity in female patients. We conclude that there are partly gender dependent cytokine and adipokine alterations in patients with schizophrenia on clozapine treatment associated with metabolic comorbidity. The genetic background of these cytokine alterations needs to be further investigated.
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Affiliation(s)
- Jari-Pekka Klemettilä
- Tampere University Hospital, Department of Psychiatry, Pitkäniemi Hospital, 33380 Pitkäniemi, Finland.
| | - Olli Kampman
- University of Tampere, School of Medicine, 33014 Tampere, Finland; Seinäjoki Hospital District, Department of Psychiatry, 60220 Seinäjoki, Finland
| | - Niko Seppälä
- Satakunta Hospital District, Department of Psychiatry, 28500 Pori, Finland
| | - Merja Viikki
- University of Tampere, School of Medicine, 33014 Tampere, Finland; Tampere Mental Health Centre, Hallituskatu 8B, 33200 Tampere, Finland
| | - Mari Hämäläinen
- Immunopharmacology Research Group, University of Tampere, School of Medicine, 33014 Tampere, Finland; Tampere University Hospital, 33520 Tampere, Finland
| | - Eeva Moilanen
- Immunopharmacology Research Group, University of Tampere, School of Medicine, 33014 Tampere, Finland; Tampere University Hospital, 33520 Tampere, Finland
| | - Esa Leinonen
- Tampere University Hospital, Department of Psychiatry, Pitkäniemi Hospital, 33380 Pitkäniemi, Finland; University of Tampere, School of Medicine, 33014 Tampere, Finland
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Manu P, Correll CU, Wampers M, Mitchell AJ, Probst M, Vancampfort D, De Hert M. Markers of inflammation in schizophrenia: association vs. causation. World Psychiatry 2014; 13:189-92. [PMID: 24890072 PMCID: PMC4102292 DOI: 10.1002/wps.20117] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Peter Manu
- Zucker Hillside HospitalGlen Oaks, New York, NY, USA,Hofstra North Shore – LIJ School of MedicineHempstead, NY, USA
| | - Christoph U Correll
- Zucker Hillside HospitalGlen Oaks, New York, NY, USA,Hofstra North Shore – LIJ School of MedicineHempstead, NY, USA
| | - Martien Wampers
- University Psychiatric Centre KU LeuvenCampus Kortenberg, Kortenberg, Belgium
| | - Alex J Mitchell
- Department of Psycho-oncology, Leicestershire Partnership NHS TrustLeicester, UK,Department of Cancer and Molecular Medicine, University of LeicesterLeicester, UK
| | - Michel Probst
- University Psychiatric Centre KU LeuvenCampus Kortenberg, Kortenberg, Belgium,KU Leuven Department of Rehabilitation SciencesLeuven, Belgium
| | - Davy Vancampfort
- University Psychiatric Centre KU LeuvenCampus Kortenberg, Kortenberg, Belgium,KU Leuven Department of Rehabilitation SciencesLeuven, Belgium
| | - Marc De Hert
- University Psychiatric Centre KU LeuvenCampus Kortenberg, Kortenberg, Belgium
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Jafari S, Huang XF, Andrews JL, Fernandez-Enright F. In vivo pharmacological evaluations of novel olanzapine analogues in rats: a potential new avenue for the treatment of schizophrenia. PLoS One 2013; 8:e80979. [PMID: 24349027 PMCID: PMC3859487 DOI: 10.1371/journal.pone.0080979] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 10/17/2013] [Indexed: 11/18/2022] Open
Abstract
Olanzapine (Olz) is one of the most effective antipsychotic drugs commonly used for treating schizophrenia. Unfortunately, Olz administration is associated with severe weight gain and metabolic disturbances. Both patients and clinicians are highly interested in the development of new antipsychotics which are as effective as atypical antipsychotics but which have a lower propensity to induce metabolic side effects. In the present study, we examined two new derivatives of Olz; OlzEt (2-ethyl-4-(4'-methylpiperazin-1'-yl)-10Hbenzo[b]thieno[2,3-e][1,4]diazepine), and OlzHomo (2-ethyl-4-(4'-methyl-1',4'-diazepan-1'-yl)-10H-benzo[b]thieno[2,3-e] [1,4]diazepine), for their tendency to induce weight gain in rats. Weight gain and metabolic changes were measured in female Sprague Dawley rats. Animals were treated orally with Olz, OlzEt, OlzHomo (3 or 6 mg/kg/day), or vehicle (n = 8), three times daily at eight-hour intervals for 5 weeks. Furthermore, a phencyclidine (PCP)-treated rat model was used to examine the prevention of PCP-induced hyperlocomotor activity relevant for schizophrenia therapy. Male Sprague Dawley rats were pre-treated with a single dose (3 mg/kg/day) of Olz, OlzEt, OlzHomo, or vehicle (n = 12), for 2 weeks. Locomotor activity was recorded following a subcutaneous injection with either saline or PCP (10 mg/kg). Olz was found to induce weight gain, hyperphagia, visceral fat accumulation, and metabolic changes associated with reduced histamatergic H1 receptor density in the hypothalamus of treated rats. In contrast, OlzEt and OlzHomo presented promising antipsychotic effects, which did not induce weight gain or fat deposition in the treated animals. Behavioural analysis showed OlzEt to attenuate PCP-induced hyperactivity to a level similar to that of Olz; however, OlzHomo showed a lower propensity to inhibit these stereotyped behaviours. Our data suggest that the therapeutic effectiveness of OlzHomo may be delivered at a higher dose than that of Olz and OlzEt. Overall, OlzEt and OlzHomo may offer a better pharmacological profile than Olz for treating patients with schizophrenia. Clinical trials are needed to test this hypothesis.
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Affiliation(s)
- Somayeh Jafari
- Illawarra Health and Medical Research Institute and School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
- School of Chemistry, University of Wollongong, Wollongong, New South Wales, Australia
| | - Xu-Feng Huang
- Illawarra Health and Medical Research Institute and School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
- Schizophrenia Research Institute, Darlinghurst, New South Wales, Australia
| | - Jessica L. Andrews
- Illawarra Health and Medical Research Institute and School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
- Schizophrenia Research Institute, Darlinghurst, New South Wales, Australia
| | - Francesca Fernandez-Enright
- Illawarra Health and Medical Research Institute and School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
- Schizophrenia Research Institute, Darlinghurst, New South Wales, Australia
- * E-mail:
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30
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Vancampfort D, Wampers M, Mitchell AJ, Correll CU, De Herdt A, Probst M, De Hert M. A meta-analysis of cardio-metabolic abnormalities in drug naïve, first-episode and multi-episode patients with schizophrenia versus general population controls. World Psychiatry 2013; 12:240-50. [PMID: 24096790 PMCID: PMC3799255 DOI: 10.1002/wps.20069] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A meta-analysis was conducted to explore the risk for cardio-metabolic abnormalities in drug naïve, first-episode and multi-episode patients with schizophrenia and age- and gender- or cohort-matched general population controls. Our literature search generated 203 relevant studies, of which 136 were included. The final dataset comprised 185,606 unique patients with schizophrenia, and 28 studies provided data for age- and gender-matched or cohort-matched general population controls (n=3,898,739). We found that multi-episode patients with schizophrenia were at increased risk for abdominal obesity (OR=4.43; CI=2.52-7.82; p<0.001), hypertension (OR=1.36; CI=1.21-1.53; p<0.001), low high-density lipoprotein cholesterol (OR=2.35; CI=1.78-3.10; p<0.001), hypertriglyceridemia (OR=2.73; CI=1.95-3.83; p<0.001), metabolic syndrome (OR=2.35; CI=1.68-3.29; p<0.001), and diabetes (OR=1.99; CI=1.55-2.54; p<0.001), compared to controls. Multi-episode patients with schizophrenia were also at increased risk, compared to first-episode (p<0.001) and drug-naïve (p<0.001) patients, for the above abnormalities, with the exception of hypertension and diabetes. Our data provide further evidence supporting WPA recommendations on screening, follow-up, health education and lifestyle changes in people with schizophrenia.
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Affiliation(s)
- Davy Vancampfort
- University Psychiatric Centre KU Leuven, Campus Kortenberg, Leuvensesteenweg 517, 3070 Kortenberg, Belgium; KU Leuven Department of Rehabilitation Sciences, Leuven, Belgium
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31
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Moteshafi H, Zhornitsky S, Brunelle S, Stip E. Comparing tolerability of olanzapine in schizophrenia and affective disorders: a meta-analysis. Drug Saf 2013; 35:819-36. [PMID: 22967188 DOI: 10.1007/bf03261978] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Olanzapine is prescribed for a number of psychiatric disorders, including schizophrenia, bipolar mania, and unipolar and bipolar depression. Olanzapine treatment is associated with tolerability issues such as metabolic adverse effects (e.g. weight gain, increase in blood glucose, triglycerides and total cholesterol levels), extrapyramidal symptoms [EPS] (e.g. parkinsonism, akathisia, tardive dyskinesia) and sedative adverse effects. Metabolic issues lead to some long-term consequences, which include cardiovascular diseases (CVD) and type 2 diabetes mellitus, and these complications cause high rates of mortality and morbidity among patients with severe mental illnesses. The expanded indications of olanzapine in psychiatry suggest a need to investigate whether there is a difference in the incidence and severity of adverse effects related to category diagnosis. Are the adverse effects expressed differently according to phenotype? Unfortunately, there are no reported studies that investigated these differences in adverse effects associated with olanzapine treatment in psychiatric patients with different phenotypes. OBJECTIVE The aim of the present meta-analysis is to separately examine olanzapine-induced cardiometabolic adverse effects and EPS in patients with schizophrenia and affective disorders. DATA SOURCES A search of computerized literature databases PsycINFO (1967-2010), PubMed (MEDLINE), EMBASE (1980-2010) and the clinicaltrials.gov website for randomized clinical trials was conducted. A manual search of reference lists of published review articles was carried out to gather further data. STUDY SELECTION Randomized controlled trials were included in our study if (i) they assessed olanzapine adverse effects (metabolic or extrapyramidal) in adult patients with schizophrenia or affective disorders; and (ii) they administered oral olanzapine as monotherapy during study. DATA EXTRACTION Two reviewers independently screened abstracts for choosing articles and one reviewer extracted relevant data on the basis of predetermined exclusion and inclusion criteria. It should be mentioned that for the affective disorders group we could only find articles related to bipolar disorder. DATA SYNTHESIS Thirty-three studies (4831 patients) that address olanzapine monotherapy treatment of adults with schizophrenia or bipolar disorder were included in the analysis. The primary outcomes were metabolic adverse effects (changes in weight, blood glucose, low-density lipoprotein, total cholesterol and triglyceride levels). The secondary outcomes of our study were assessing the incidence of some EPS (parkinsonism, akathisia and use of antiparkinson medication). The tolerability outcomes were calculated separately for the schizophrenia and bipolar disorder groups and were combined in a meta-analysis. Tolerability outcomes show that olanzapine contributes to weight gain and elevates blood triglycerides, glucose and total cholesterol levels in both schizophrenia and bipolar disorder patients. However, olanzapine treatment produced significantly more weight gain in schizophrenia patients than in bipolar disorder patients. In addition, increases in blood glucose, total cholesterol and triglyceride levels were higher in the schizophrenia group compared with the bipolar disorder group, even though these differences were not statistically significant. Based on our results, the incidence of parkinsonism was significantly higher in the schizophrenia group than in the bipolar disorder group. Subgroup analysis and logistic regression were used to assess the influence of treatment duration, dose, industry sponsorship, age and sex ratio on tolerability outcome. CONCLUSIONS Our results suggest that schizophrenia patients may be more vulnerable to olanzapine-induced weight gain. The findings may be explained by considering the fact that in addition to genetic disposition for metabolic syndrome in schizophrenia patients, they have an especially high incidence of lifestyle risk factors for CVD, such as poor diet, lack of exercise, stress and smoking. It might be that an antipsychotic induces severity of adverse effect according to the phenotype.
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Affiliation(s)
- Hoda Moteshafi
- Dpartement de Pharmacologie, Universit de Montral, Montral, QC, Canada
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32
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Wang LJ, Ree SC, Huang YS, Hsiao CC, Chen CK. Adjunctive effects of aripiprazole on metabolic profiles: comparison of patients treated with olanzapine to patients treated with other atypical antipsychotic drugs. Prog Neuropsychopharmacol Biol Psychiatry 2013; 40:260-6. [PMID: 23085073 DOI: 10.1016/j.pnpbp.2012.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/10/2012] [Accepted: 10/11/2012] [Indexed: 12/16/2022]
Abstract
Metabolic abnormalities are serious adverse effects of atypical antipsychotic treatment. This study aims to determine the effects of adjunctive aripiprazole on metabolic profiles among patients receiving treatment with atypical antipsychotics, and to examine whether these effects are different from that of pre-existing atypical antipsychotics. In the 8-week open-label trial, aripiprazole was added to patients who were receiving treatment with atypical antipsychotics and had experienced weight gain or dyslipidemia. The dosage of pre-existing atypical antipsychotics was fixed, while the dosage of aripiprazole ranged from 5 to 20 mg/day during the study period. Metabolic profiles, including body weight, body mass index (BMI), plasma levels of fasting glucose, triglycerides, total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, and adiponectin, were measured at baseline and week 8. As a result, 43 subjects (16 males and 27 females, mean age: 37.8±10.8 years) completed the study. The pre-existing antipsychotics were olanzapine (n=12), risperidone (n=19), quetiapine (n=6) and amisulpiride (n=6). The mean dosage of adjunctive aripiprazole was 9.9±3.2 mg/day. After the aripiprazole-augmented regimen for 8 weeks, patients treated with olanzapine had significant decreases in body weight, BMI and triglyceride levels, and had significant increases in adiponectin levels. For patients treated with other atypical antipsychotics, none of the metabolic parameters significantly changed after administering aripiprazole. In conclusion, aripiprazole-augmented treatment might be beneficial for the metabolic regulation of patients being treated with a stable dose of olanzapine, but not for those treated with other atypical antipsychotics. A long-term, randomized, double-blind controlled design is suggested to confirm these findings.
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Affiliation(s)
- Liang-Jen Wang
- Department of Psychiatry, Chang Gung Memorial Hospital at Keelung, Keelung, Taiwan
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33
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Windemuth A, de Leon J, Goethe JW, Schwartz HI, Woolley S, Susce M, Kocherla M, Bogaard K, Holford TR, Seip RL, Ruaño G. Validation of candidate genes associated with cardiovascular risk factors in psychiatric patients. Prog Neuropsychopharmacol Biol Psychiatry 2012; 36:213-9. [PMID: 21851846 PMCID: PMC4912220 DOI: 10.1016/j.pnpbp.2011.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 07/30/2011] [Accepted: 08/01/2011] [Indexed: 01/11/2023]
Abstract
The purpose of this study was to identify genetic variants predictive of cardiovascular risk factors in a psychiatric population treated with second generation antipsychotics (SGA). 924 patients undergoing treatment for severe mental illness at four US hospitals were genotyped at 1.2 million single nucleotide polymorphisms. Patients were assessed for fasting serum lipid (low density lipoprotein cholesterol [LDLc], high density lipoprotein cholesterol [HDLc], and triglycerides) and obesity phenotypes (body mass index, BMI). Thirteen candidate genes from previous studies of the same phenotypes in non-psychiatric populations were tested for association. We confirmed 8 of the 13 candidate genes at the 95% confidence level. An increased genetic effect size was observed for triglycerides in the psychiatric population compared to that in the cardiovascular population.
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Affiliation(s)
- Andreas Windemuth
- Genomas, Inc. and Genetics Research Center, Hartford Hospital, Hartford, CT 06106, USA
| | - Jose de Leon
- Mental Health Research Center at Eastern State Hospital and the Department of Psychiatry, College of Medicine, University of Kentucky, Lexington, KY 40508, USA
| | - John W. Goethe
- Institute of Living, Hartford Hospital, Hartford, CT 06106, USA
| | | | - Stephen Woolley
- Institute of Living, Hartford Hospital, Hartford, CT 06106, USA
| | - Margaret Susce
- Mental Health Research Center at Eastern State Hospital and the Department of Psychiatry, College of Medicine, University of Kentucky, Lexington, KY 40508, USA
| | - Mohan Kocherla
- Genomas, Inc. and Genetics Research Center, Hartford Hospital, Hartford, CT 06106, USA
| | - Kali Bogaard
- Genomas, Inc. and Genetics Research Center, Hartford Hospital, Hartford, CT 06106, USA
| | | | - Richard L. Seip
- Genomas, Inc. and Genetics Research Center, Hartford Hospital, Hartford, CT 06106, USA
| | - Gualberto Ruaño
- Genomas, Inc. and Genetics Research Center, Hartford Hospital, Hartford, CT 06106, USA,Corresponding author at: Genetics Research Center, Hartford Hospital, 67 Jefferson Street, Hartford, CT 06106, USA. Tel.: +1 860 545 4574; fax: +1 860 545 4575. (G. Ruaño)
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