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Santos-Silva T, Lopes CFB, Hazar Ülgen D, Guimarães DA, Guimarães FS, Alberici LC, Sandi C, Gomes FV. Adolescent Stress-Induced Ventral Hippocampus Redox Dysregulation Underlies Behavioral Deficits and Excitatory/Inhibitory Imbalance Related to Schizophrenia. Schizophr Bull 2024:sbae033. [PMID: 38525594 DOI: 10.1093/schbul/sbae033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
BACKGROUND AND HYPOTHESIS Redox dysregulation has been proposed as a convergent point of childhood trauma and the emergence of psychiatric disorders, such as schizophrenia (SCZ). A critical region particularly vulnerable to environmental insults during adolescence is the ventral hippocampus (vHip). However, the impact of severe stress on vHip redox states and their functional consequences, including behavioral and electrophysiological changes related to SCZ, are not entirely understood. STUDY DESIGN After exposing adolescent animals to physical stress (postnatal day, PND31-40), we explored social and cognitive behaviors (PND47-49), the basal activity of pyramidal glutamate neurons, the number of parvalbumin (PV) interneurons, and the transcriptomic signature of the vHip (PND51). We also evaluated the impact of stress on the redox system, including mitochondrial respiratory function, reactive oxygen species (ROS) production, and glutathione (GSH) levels in the vHip and serum. STUDY RESULTS Adolescent-stressed animals exhibited loss of sociability, cognitive impairment, and vHip excitatory/inhibitory (E/I) imbalance. Genome-wide transcriptional profiling unveiled the impact of stress on redox system- and synaptic-related genes. Stress impacted mitochondrial respiratory function and changes in ROS levels in the vHip. GSH and glutathione disulfide (GSSG) levels were elevated in the serum of stressed animals, while GSSG was also increased in the vHip and negatively correlated with sociability. Additionally, PV interneuron deficits in the vHip caused by adolescent stress were associated with oxidative stress. CONCLUSIONS Our results highlight the negative impact of adolescent stress on vHip redox regulation and mitochondrial function, which are partially associated with E/I imbalance and behavioral abnormalities related to SCZ.
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Affiliation(s)
- Thamyris Santos-Silva
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Caio Fábio Baeta Lopes
- Department of Biomolecular Sciences, Ribeirão Preto Pharmaceutical Sciences School, University of São Paulo, Ribeirão Preto, Brazil
| | - Doğukan Hazar Ülgen
- Brain Mind Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Danielle A Guimarães
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Francisco S Guimarães
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciane Carla Alberici
- Department of Biomolecular Sciences, Ribeirão Preto Pharmaceutical Sciences School, University of São Paulo, Ribeirão Preto, Brazil
| | - Carmen Sandi
- Brain Mind Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Felipe V Gomes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Hemby SE, McIntosh S. Chronic haloperidol administration downregulates select BDNF transcript and protein levels in the dorsolateral prefrontal cortex of rhesus monkeys. Front Psychiatry 2023; 14:1054506. [PMID: 36816400 PMCID: PMC9932326 DOI: 10.3389/fpsyt.2023.1054506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Post-mortem studies in the prefrontal cortex and hippocampal formation from schizophrenia patients have revealed significant disruptions in the expression molecules associated with cytoarchitecture, synaptic structure, function, and plasticity, known to be regulated in part by brain derived neurotrophic factor (BDNF). Interestingly, several studies using postmortem brain tissue from individuals diagnosed with schizophrenia have revealed a significant reduction in BDNF mRNA and protein levels in the dorsolateral prefrontal cortex (DLPFC), hippocampus and related areas; however, differentiating the effects of illness from antipsychotic history has remained difficult. We hypothesized that chronic antipsychotic treatment may contribute to the altered BDNF mRNA and protein expression observed in post-mortem brains of individuals diagnosed with schizophrenia. To address the influence of antipsychotic administration on BDNF expression in the primate brain, rhesus monkeys orally administered haloperidol, clozapine, or vehicle twice daily for 180 days. We found BDNF splice variants 4 and 5 in the DLPFC and variant 2 in the EC were significantly down-regulated following chronic administration of haloperidol. In addition, proBDNF and mature BDNF expression in the DLPFC, but not the EC, were significantly reduced. Based on the known regulation of BDNF expression by BDNF-AS, we assessed the expression of this lncRNA and found expression was significantly upregulated in the DLPFC, but not EC. The results of the present study provide evidence of haloperidol-induced regulation of BDNF mRNA and protein expression in the DLFPC and suggest an important role for BDNF-AS in this regulation. Given the role of BDNF in synaptic plasticity, neuronal survival and maintenance, aberrant expression induced by haloperidol likely has significant ramifications for neuronal populations and circuits in primate cortex.
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Affiliation(s)
- Scott E Hemby
- Department of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC, United States
| | - Scot McIntosh
- Department of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC, United States
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Yang M, Wang C, Zhao G, Kong D, Liu L, Yuan S, Chen W, Feng C, Li Z. Comparative Analysis of the Pre- and Post-Medication Effects of Antipsychotic Agents on the Blood-Based Oxidative Stress Biomarkers in Patients with Schizophrenia: A Meta-Analysis. Curr Neuropharmacol 2023; 21:340-352. [PMID: 35794775 PMCID: PMC10190148 DOI: 10.2174/1570159x20666220706101021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 04/19/2022] [Accepted: 06/13/2022] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Studies have shown that oxidative stress (OS) is related to the pathophysiology of schizophrenia (SCZ), but whether antipsychotics can induce OS has not been investigated well. Moreover, antipsychotics have differential effects on the OS level modulation, i.e., different types of antipsychotics have different effects on the cellular antioxidants or pro-oxidants. METHODS We followed the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines and investigated the OS indicators including both enzymatic and nonenzymatic markers, such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), malondialdehyde (MDA), glutathione (GSH), vitamin C, etc., of SCZ patients at baseline and follow-up of mono-medication. RESULTS Twenty studies met the inclusion criteria, with a total of 1162 patients enrolled at baseline, and 1105 patients completed the follow-up. OS markers were changed after a period of antipsychotic treatment in SCZ patients. The GPx activity and MDA level decreased in the whole blood (P<0.05), also the serum MDA level decreased (P<0.05). For the first-episode SCZ patients, the activity of GPx and the level of MDA decreased, while the level of vitamin C increased (all P<0.05). The levels of MDA in patients receiving atypical antipsychotics decreased (P<0.05), while the level of GSH in patients with typical antipsychotics decreased (P=0.05). CONCLUSION Antipsychotic medication may cause changes in the levels of OS markers in different blood samples of SCZ patients. However, the available studies might not be sufficient to reveal the underlying facts accurately due to the poor quality of experimental designs in the published literature.
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Affiliation(s)
- Mi Yang
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Chunzhi Wang
- Department of Psychiatry, Qingdao Mental Health Center, Qingdao, China
| | - Guocheng Zhao
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Di Kong
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Liju Liu
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Shuai Yuan
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Wei Chen
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Can Feng
- Department of Psychiatry, The Fourth People's Hospital of Chengdu, Chengdu, China
| | - Zezhi Li
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Psychiatry, Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
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Kajero JA, Seedat S, Ohaeri J, Akindele A, Aina O. Effects of cannabidiol on vacuous chewing movements, plasma glucose and oxidative stress indices in rats administered high dose risperidone. Sci Rep 2022; 12:19718. [PMID: 36385633 PMCID: PMC9669024 DOI: 10.1038/s41598-022-24235-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
Atypical antipsychotics, despite their rapid dissociation from dopamine receptors and reduced tendency to induce oxidative stress, have been associated with difficult-to-manage movement disorders, including tardive dyskinesia (TD). The study set out to investigate the effects of cannabidiol (CBD), a potent antioxidant, on risperidone-induced behavioural and motor disturbances; namely vacuous chewing movements (VCM), and oxidative stress markers (e.g. superoxide dismutase (SOD), catalase (CAT), reduced glutathione (GSH), malondialdehyde (MDA), Nitric oxide (NO), and DPPH (2,2-diphenyl-1-picrylhydrazyl)). Oral risperidone (10 mg/kg) or oral CBD (5 mg/kg) were administered to six experimental groups. While risperidone alone was administered for 28 days, CBD concomitantly or in sequential order with risperidone, was administered for 28 days; and CBD alone was administered for 21 days. Behavioural, motor, and specific biochemical parameters, which included VCM, muscle tone, fasting blood sugar (FBS), and oxidative stress markers were assessed at different time points after the last dose of medication. Oral CBD (5 mg/kg) significantly reduced risperidone-induced elevated FBS when given after the administration of risperidone. Oral CBD also had effects on VCM when administered before risperidone and similarly, attenuated risperidone-induced increased muscle tone. It was also established that concomitant or sequential administration of CBD and risperidone did not have any adverse effects on cognition or locomotion. Both CBD and risperidone increased the activity of antioxidant enzymes and decreased the activity of pro-oxidant enzymes. This study suggests CBD could mitigate metabolic dysregulation and extrapyramidal side effects associated with risperidone without producing cognitive impairments.
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Affiliation(s)
- Jaiyeola Abiola Kajero
- grid.11956.3a0000 0001 2214 904XDepartment of Psychiatry, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive Tygerberg, PO Box 241, Cape Town, 7505 South Africa ,grid.490120.e0000 0004 9338 1163Present Address: Federal Neuropsychiatric Hospital, 8, Harvey Road, P.M.B 2008, Yaba, Lagos Nigeria
| | - Soraya Seedat
- grid.11956.3a0000 0001 2214 904XDepartment of Psychiatry, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Drive Tygerberg, PO Box 241, Cape Town, 7505 South Africa
| | - Jude Ohaeri
- grid.10757.340000 0001 2108 8257Department of Psychological Medicine, Teaching Hospital, University of Nigeria, P.O. Box 3236, Enugu, Enugu State Nigeria
| | - Abidemi Akindele
- grid.411782.90000 0004 1803 1817Department of Pharmacology, Therapeutics & Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Private Mail Bag 12003, Lagos, Nigeria
| | - Oluwagbemiga Aina
- grid.416197.c0000 0001 0247 1197Department of Biochemistry and Nutrition, Nigerian Institute of Medical Research, 6 Edmund Crescent, Off Murtala Mohammed Way, P.M.B. 2013, Yaba, Lagos, 100001 Nigeria
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Chen N, Liu H, Yao J, Chen S, Xiu M, Wu F, Zhang X. Smoke, GPx activity and symptoms improvement in patients with drug-naive first-episode schizophrenia: A large-scale 12-week follow-up study. Asian J Psychiatr 2022; 77:103267. [PMID: 36202003 DOI: 10.1016/j.ajp.2022.103267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 08/23/2022] [Accepted: 09/23/2022] [Indexed: 11/29/2022]
Abstract
The relationship between tobacco smoke and schizophrenia (SZ) is well established. Smoking is hypothesized to alleviate symptoms and reduce the adverse effects of antipsychotic medications in patients with SZ. However, the underlying biological mechanisms by which smoke improves symptoms in SZ remain unclear. The aim of this study was to investigate the effect of smoking on clinical symptoms and antioxidant enzyme activity after risperidone treatment in a 12-week prospective cohort study of drug-naïve first-episode (DNFE) SZ patients. Two hundred and fifteen DNFE patients were recruited and received 12 weeks of risperidone monotherapy. The Positive and Negative Syndrome Scale (PANSS) was used to assess the severity of patient's symptoms at baseline and post-treatment. Plasma GPx activity was also measured at baseline and at the end of 12 weeks. Smokers showed greater improvement in negative symptoms relative to nonsmokers with DNFE SZ. In addition, repeated ANCOVA analysis showed no significant interaction of time and group on GPx activity. Improvement in negative symptoms was not associated with changes in GPx activity. However, in nonsmokers, increased GPx activity was correlated with improvement in positive symptoms.
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Affiliation(s)
- Nan Chen
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Haixia Liu
- Department of Psychiatry, Shandong Mental Health Center, Shandong University, Jinan, China
| | - Jing Yao
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Song Chen
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Meihong Xiu
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Fengchun Wu
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China.
| | - Xiangyang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.
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6
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Liu H, Liu H, Jiang S, Su L, Lu Y, Chen Z, Li X, Li X, Wang X, Xiu M, Zhang X. Sex-Specific Association between Antioxidant Defense System and Therapeutic Response to Risperidone in Schizophrenia: A Prospective Longitudinal Study. Curr Neuropharmacol 2022; 20:1793-1803. [PMID: 34766896 PMCID: PMC9881066 DOI: 10.2174/1570159x19666211111123918] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND There are various differences in response to different antipsychotics and antioxidant defense systems (ADS) by sex. Previous studies have shown that several ADS enzymes are closely related to the treatment response of patients with antipsychotics-naïve first-episode (ANFE) schizophrenia. OBJECTIVE Therefore, the main goal of this study was to assess the sex difference in the relationship between changes in ADS enzyme activities and risperidone response. METHODS The plasma activities of glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), and total antioxidant status (TAS) were measured in 218 patients and 125 healthy controls. Patients were treated with risperidone for 3 months, and we measured PANSS for psychopathological symptoms and ADS biomarkers at baseline and at the end of 3 months of treatment. We compared sex-specific group differences between 50 non-responders and 168 responders at baseline and at the end of the three months of treatment. RESULTS We found that female patients responded better to risperidone treatment than male patients. At baseline and 3-month follow-up, there were no significant sex differences in TAS levels and three ADS enzyme activities. Interestingly, only in female patients, after 12 weeks of risperidone treatment, the GPx activity of responders was higher than that of non-responders. CONCLUSION These results indicate that after treatment with risperidone, changes in GPx activity were associated with treatment response, suggesting that changes in GPx may be a predictor of response to risperidone treatment in female patients with ANFE schizophrenia.
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Affiliation(s)
- Haixia Liu
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Hua Liu
- Qingdao Mental Health Center, Qingdao University, Qingdao, China;
| | - Shuling Jiang
- Department of Neurology, Linyi Central Hospital, Shandong, China;
| | - Lei Su
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Yi Lu
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Zhenli Chen
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Xiaojing Li
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Xirong Li
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Xuemei Wang
- Department of Psychiatry, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China; ,Address correspondence to these authors at the CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; E-mail: ; Department of Psychiatry, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China; E-mail: ; Linyin Road, Qixing District, Suzhou, Jiangsu, 215006, China; E-mail:
| | - Meihong Xiu
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China; ,Address correspondence to these authors at the CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; E-mail: ; Department of Psychiatry, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China; E-mail: ; Linyin Road, Qixing District, Suzhou, Jiangsu, 215006, China; E-mail:
| | - Xiangyang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China,Address correspondence to these authors at the CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; E-mail: ; Department of Psychiatry, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China; E-mail: ; Linyin Road, Qixing District, Suzhou, Jiangsu, 215006, China; E-mail:
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7
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Liu H, Yu R, Gao Y, Li X, Guan X, Thomas K, Xiu M, Zhang X. Antioxidant Enzymes and Weight Gain in Drug-naive First-episode Schizophrenia Patients Treated with Risperidone for 12 Weeks: A Prospective Longitudinal Study. Curr Neuropharmacol 2022; 20:1774-1782. [PMID: 34544343 PMCID: PMC9881063 DOI: 10.2174/1570159x19666210920090547] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 08/10/2021] [Accepted: 08/14/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Oxidative stress plays an important role in weight gain induced by antipsychotics in schizophrenia (SCZ). However, little is known about how antioxidant enzymes are involved in weight gain caused by risperidone monotherapy in antipsychotics-naïve first-episode (ANFE) patients with SCZ. Therefore, the main purpose of this study was to investigate the effects of risperidone on several antioxidant enzymes in patients with ANFE SCZ and the relationship between weight gain and changes in antioxidant enzyme activities. OBJECTIVE The activities of plasma superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), as well as the levels of malondialdehyde (MDA) were measured in 225 ANFE patients and 125 healthy controls. METHODS Patients were treated with risperidone monotherapy for 12 weeks. Clinical symptoms, antioxidant enzyme activities, and MDA levels were measured at baseline and during follow-up. RESULTS Compared with healthy controls, the patients showed higher activities of SOD and CAT but lower MDA levels and GPx activity. At baseline, the CAT activity was associated with body weight or BMI. Further, based on a 7% weight increase from baseline to follow-up, we found 75 patients in the weight gain (WG) group and 150 patients in the non-WG group. Comparing SOD, CAT, GPx activities and MDA levels between the WG group and the non-WG group at baseline and during the 12-week follow-up, it was found that after treatment, the SOD activity in the WG group increased while the MDA level decreased in the non-WG group. Moreover, baseline SOD and GPx activities were predictors of weight gain at 12-week follow-up. CONCLUSION These results suggest that the antioxidant defense system may have predictive value for the weight gain of ANFE SCZ patients after risperidone treatment.
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Affiliation(s)
- Haixia Liu
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Rui Yu
- Qingdao Mental Health Center, Qingdao University, Qingdao, China;
| | - Yanan Gao
- Qingdao Mental Health Center, Qingdao University, Qingdao, China;
| | - Xirong Li
- Department of Psychiatry, Shandong Mental Health Center, Jinan, China;
| | - Xiaoni Guan
- Peking University HuiLong Guan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China;
| | - Kosten Thomas
- Mental Health Care Line, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas; Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston,Texas;
| | - Meihong Xiu
- Peking University HuiLong Guan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China; ,Address correspondence to these authors at the CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Tel: (86-10) 64879520; E-mail: ; Peking University HuiLong Guan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China; Tel: (86-10) 83024429; E-mail:
| | - Xiangyang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China,Address correspondence to these authors at the CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Tel: (86-10) 64879520; E-mail: ; Peking University HuiLong Guan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China; Tel: (86-10) 83024429; E-mail:
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Effects of antipsychotics on antioxidant defence system in patients with schizophrenia: A meta-analysis. Psychiatry Res 2022; 309:114429. [PMID: 35150976 DOI: 10.1016/j.psychres.2022.114429] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/15/2021] [Accepted: 01/30/2022] [Indexed: 12/25/2022]
Abstract
Theory of oxidative stress is suggested in the pathophysiology of schizophrenia. To determine the cause of impaired antioxidant defense system in schizophrenia, a meta-analysis was performed by selecting studies published from 1964 to 2021 from Pubmed and Scopus databases. Data were analysed using Comprehensive Meta-Analysis version 2 and calculated effect sizes were compared between unmedicated and medicated patients with schizophrenia and healthy controls. Heterogeneity, publication bias assessments and subgroup analyses of drug-free and drug-naïve patients, and patients treated with atypical and typical antipsychotics were conducted. Subgroup analysis of confounding factors including age, gender, illness duration and patient status was also conducted. We found that glutathione peroxidase (GPx) was significantly decreased in all patients. Significantly lower catalase (CAT), glutathione (GSH) and albumin (ALB) were found in unmedicated patients only. Both groups showed significantly weakened non-enzymatic antioxidant capacity. Subgroup analyses indicated that weakened non-enzymatic antioxidant capacity may be associated with schizophrenia. Antioxidant status was more impaired in drug-free patients compared with other subgroups. This indicated that antipsychotics may improve antioxidant defense system. Although effect sizes were smaller, future studies may focus on the effect of antipsychotic discontinuation. In overall, schizophrenia was associated with impaired antioxidant defense system especially the non-enzymatic antioxidant system.
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Beeraka NM, Avila-Rodriguez MF, Aliev G. Recent Reports on Redox Stress-Induced Mitochondrial DNA Variations, Neuroglial Interactions, and NMDA Receptor System in Pathophysiology of Schizophrenia. Mol Neurobiol 2022; 59:2472-2496. [PMID: 35083660 DOI: 10.1007/s12035-021-02703-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/14/2021] [Indexed: 10/19/2022]
Abstract
Schizophrenia (SZ) is a chronic psychiatric disorder affecting several people worldwide. Mitochondrial DNA (mtDNA) variations could invoke changes in the OXPHOS system, calcium buffering, and ROS production, which have significant implications for glial cell survival during SZ. Oxidative stress has been implicated in glial cells-mediated pathogenesis of SZ; the brain comparatively more prone to oxidative damage through NMDAR. A confluence of scientific evidence points to mtDNA alterations, Nrf2 signaling, dynamic alterations in dorsolateral prefrontal cortex (DLPFC), and provocation of oxidative stress that enhance pathophysiology of SZ. Furthermore, the alterations in excitatory signaling related to NMDAR signaling were particularly reported for SZ pathophysiology. Current review reported the recent evidence for the role of mtDNA variations and oxidative stress in relation to pathophysiology of SZ, NMDAR hypofunction, and glutathione deficiency. NMDAR system is influenced by redox dysregulation in oxidative stress, inflammation, and antioxidant mediators. Several studies have demonstrated the relationship of these variables on severity of pathophysiology in SZ. An extensive literature search was conducted using Medline, PubMed, PsycINFO, CINAHL PLUS, BIOSIS Preview, Google scholar, and Cochrane databases. We summarize consistent evidence pointing out a plausible model that may elucidate the crosstalk between mtDNA alterations in glial cells and redox dysregulation during oxidative stress and the perturbation of NMDA neurotransmitter system during current therapeutic modalities for the SZ treatment. This review can be beneficial for the development of promising novel diagnostics, and therapeutic modalities by ascertaining the mtDNA variations, redox state, and efficacy of pharmacological agents to mitigate redox dysregulation and augment NMDAR function to treat cognitive and behavioral symptoms in SZ.
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Affiliation(s)
- Narasimha M Beeraka
- Department of Human Anatomy, I M Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, bld. 2, Moscow, 119991, Russia.
| | - Marco F Avila-Rodriguez
- Faculty of Health Sciences, Department of Clinical Sciences, Barrio Santa Helena, University of Tolima, 730006, Ibagué, Colombia
| | - Gjumrakch Aliev
- Department of Human Anatomy, I M Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, bld. 2, Moscow, 119991, Russia.,Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow Region, 142432, Russia.,Research Institute of Human Morphology, 3 Tsyurupy Street, Moscow, 117418, Russia.,GALLY International Research Institute, 7733 Louis Pasteur Drive, #330, San Antonio, TX, 78229, USA
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Spero V, Paladini MS, Brivio P, Riva MA, Calabrese F, Molteni R. Altered responsiveness of the antioxidant system in chronically stressed animals: modulation by chronic lurasidone treatment. Psychopharmacology (Berl) 2022; 239:2547-2557. [PMID: 35459959 PMCID: PMC9294027 DOI: 10.1007/s00213-022-06140-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 04/04/2022] [Indexed: 11/29/2022]
Abstract
RATIONALE Although the occurrence of stressful events is very common during life, their impact may be different depending on the experience severity and duration. Specifically, acute challenges may trigger adaptive responses and even improve the individual's performance. However, such a physiological positive coping can only take place if the underlying molecular mechanisms are properly functioning. Indeed, if these systems are compromised by genetic factors or previous adverse conditions, the response set in motion by an acute challenge may be maladaptive and even cause the insurgence or the relapse of stress-related psychiatric disorders. OBJECTIVES On these bases, we evaluated in the rat brain the role of the antioxidant component of the redox machinery on the acute stress responsiveness and its modulation by potential detrimental or beneficial events. METHODS The expression of several antioxidant enzymes was assessed in different brain areas of adult male rats exposed to acute stress 3 weeks after a chronic immobilization paradigm with or without a concomitant treatment with the antipsychotic lurasidone. RESULTS The acute challenge was able to trigger a marked antioxidant response that, despite the washout period, was impaired by the previous adverse experience and restored by lurasidone in an anatomical-specific manner. CONCLUSIONS We found that a working antioxidant machinery takes part in acute stress response and may be differentially affected by other experiences. Given the essential role of stress responsiveness in almost every life process, the identification of the underlying mechanisms and their potential pharmacological modulation add further translational value to our data.
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Affiliation(s)
- Vittoria Spero
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli 32, 20129 Milan, Italy
| | - Maria Serena Paladini
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli 32, 20129 Milan, Italy ,Present Address: Department of Physical Therapy and Rehabilitation Science; Brain and Spinal Injury Center, University of California at San Francisco, San Francisco, CA USA
| | - Paola Brivio
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti 9, 20133 Milan, Italy
| | - Marco Andrea Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti 9, 20133 Milan, Italy
| | - Francesca Calabrese
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti 9, 20133, Milan, Italy.
| | - Raffaella Molteni
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli 32, 20129 Milan, Italy
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11
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Wang X, Liu J, Dai Z, Sui Y. Andrographolide improves PCP-induced schizophrenia-like behaviors through blocking interaction between NRF2 and KEAP1. J Pharmacol Sci 2021; 147:9-17. [PMID: 34294378 DOI: 10.1016/j.jphs.2021.05.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/02/2021] [Accepted: 05/17/2021] [Indexed: 12/15/2022] Open
Abstract
Schizophrenia is one of the foremost psychological illness around the world, and recent evidence shows that inflammation and oxidative stress may play a critical role in the etiology of schizophrenia. Andrographolide is a diterpenoid lactone from Andrographis paniculate, which has shown anti-inflammation and anti-oxidative effects. In this study, we explored whether andrographolide can improve schizophrenia-like behaviors through its inhibition of inflammation and oxidative stress in Phencyclidine (PCP)-induced mouse model of schizophrenia. We found that abnormal behavioral including locomotor activity, forced swimming and novel object recognition were ameliorated following andrographolide administration (5 mg/kg and 10 mg/kg). Andrographolide inhibited PCP-induced production of inflammatory cytokines, decreased p-p65, p-IκBα, p-p38 and p-ERK1/2 in the prefrontal cortex. Andrographolide significantly declined the level of MDA and GSH, as well as elevated the activity of SOD, CAT and GCH-px. In addition, andrographolide increased expression of NRF-2, HO-1 and NQO-1, promoted nuclear translocation of NRF-2 through blocking the interaction between NRF-2 and KEAP1, which may be associated with directly binding to NRF-2. Furthermore, antioxidative effects and anti-schizophrenia-like behaviors of andrographolide were compromised by the application of NRF-2 inhibitor ML385. In conclusion, these results suggested that andrographolide improved oxidative stress and schizophrenia-like behaviors induced by PCP through increasing NRF-2 pathway.
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Affiliation(s)
- Xiying Wang
- Department of Psychiatry, The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China.
| | - Jia Liu
- Department of Clinical Pharmacy, The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Zhiping Dai
- Department of Psychiatry, The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yuxiu Sui
- Department of Psychiatry, The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China
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12
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Chopra S, Fornito A, Francey SM, O'Donoghue B, Cropley V, Nelson B, Graham J, Baldwin L, Tahtalian S, Yuen HP, Allott K, Alvarez-Jimenez M, Harrigan S, Sabaroedin K, Pantelis C, Wood SJ, McGorry P. Differentiating the effect of antipsychotic medication and illness on brain volume reductions in first-episode psychosis: A Longitudinal, Randomised, Triple-blind, Placebo-controlled MRI Study. Neuropsychopharmacology 2021; 46:1494-1501. [PMID: 33637835 PMCID: PMC8209146 DOI: 10.1038/s41386-021-00980-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/17/2021] [Accepted: 01/20/2021] [Indexed: 01/31/2023]
Abstract
Changes in brain volume are a common finding in Magnetic Resonance Imaging (MRI) studies of people with psychosis and numerous longitudinal studies suggest that volume deficits progress with illness duration. However, a major unresolved question concerns whether these changes are driven by the underlying illness or represent iatrogenic effects of antipsychotic medication. In this study, 62 antipsychotic-naïve patients with first-episode psychosis (FEP) received either a second-generation antipsychotic (risperidone or paliperidone) or a placebo pill over a treatment period of 6 months. Both FEP groups received intensive psychosocial therapy. A healthy control group (n = 27) was also recruited. Structural MRI scans were obtained at baseline, 3 months and 12 months. Our primary aim was to differentiate illness-related brain volume changes from medication-related changes within the first 3 months of treatment. We secondarily investigated long-term effects at the 12-month timepoint. From baseline to 3 months, we observed a significant group x time interaction in the pallidum (p < 0.05 FWE-corrected), such that patients receiving antipsychotic medication showed increased volume, patients on placebo showed decreased volume, and healthy controls showed no change. Across the entire patient sample, a greater increase in pallidal grey matter volume over 3 months was associated with a greater reduction in symptom severity. Our findings indicate that psychotic illness and antipsychotic exposure exert distinct and spatially distributed effects on brain volume. Our results align with prior work in suggesting that the therapeutic efficacy of antipsychotic medications may be primarily mediated through their effects on the basal ganglia.
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Affiliation(s)
- Sidhant Chopra
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, Australia.
- Monash Biomedical Imaging, Monash University, Clayton, VIC, Australia.
| | - Alex Fornito
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, Australia
- Monash Biomedical Imaging, Monash University, Clayton, VIC, Australia
| | - Shona M Francey
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Brian O'Donoghue
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Vanessa Cropley
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Melbourne, VIC, Australia
| | - Barnaby Nelson
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Jessica Graham
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Lara Baldwin
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Steven Tahtalian
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Melbourne, VIC, Australia
| | - Hok Pan Yuen
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Kelly Allott
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Mario Alvarez-Jimenez
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Susy Harrigan
- Department of Social Work, Monash University, Clayton, VIC, Australia
- Melbourne School of Population and Global Health, University of Melbourne, Parkville, VIC, Australia
| | - Kristina Sabaroedin
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, Australia
- Monash Biomedical Imaging, Monash University, Clayton, VIC, Australia
| | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Melbourne, VIC, Australia
- The Florey Institute for Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia
| | - Stephen J Wood
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
- School of Psychology, University Birmingham, Edgbaston, UK
| | - Patrick McGorry
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
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13
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Cope ZA, Kenton JA, Minassian A, Martin MV, Perry W, Bundgaard C, Arnt J, van Enkhuizen J, Geyer MA, Young JW. Chronic antipsychotic treatment exerts limited effects on the mania-like behavior of dopamine transporter knockdown mice. Behav Brain Res 2021; 405:113167. [PMID: 33577882 PMCID: PMC10729608 DOI: 10.1016/j.bbr.2021.113167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Bipolar disorder is a life-threatening disorder linked to dopamine transporter (DAT) polymorphisms, with reduced DAT levels seen in positron emission tomography and postmortem brains. AIMS The purpose of this study was to examine the effects of approved antipsychotics on DAT dysfunction-mediated mania behavior in mice. METHODS DAT knockdown mice received either D2-family receptor antagonist risperidone or asenapine and mania-related behaviors were assessed in the clinically-relevant behavioral pattern monitor to assess spontaneous exploration. RESULTS Chronic risperidone did not reverse mania-like behavior in DAT knockdown mice. Chronic asenapine reduced mania behavior but this effect was more pronounced in wild-type littermates than in DAT knockdown mice. CONCLUSION Taken together, these findings suggest that while acute antipsychotic treatment may be beneficial in management of bipolar mania, more targeted therapeutics may be necessary for long-term treatment. Specific investigation into DAT-targeting drugs could improve future treatment of bipolar mania.
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Affiliation(s)
- Zackary A Cope
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States
| | - Johnny A Kenton
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States
| | - Arpi Minassian
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States; Center of Excellence for Stress and Mental Health and Research Service, VA San Diego Healthcare System, United States
| | - Maureen V Martin
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States
| | - William Perry
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States
| | - Christoffer Bundgaard
- H. Lundbeck A/S. Neuroscience Research, Ottiliavej 9, DK-2500, Copenhagen, Valby, Denmark
| | - Jørn Arnt
- Sunred Pharma Consulting, Solrød Strand, Denmark
| | - Jordy van Enkhuizen
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States
| | - Mark A Geyer
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States; Research Service, VA San Diego Healthcare System, San Diego, CA, United States
| | - Jared W Young
- Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA, 92093-0804, United States; Research Service, VA San Diego Healthcare System, San Diego, CA, United States.
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14
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Li XR, Xiu MH, Guan XN, Wang YC, Wang J, Leung E, Zhang XY. Altered Antioxidant Defenses in Drug-Naive First Episode Patients with Schizophrenia Are Associated with Poor Treatment Response to Risperidone: 12-Week Results from a Prospective Longitudinal Study. Neurotherapeutics 2021; 18:1316-1324. [PMID: 33791970 PMCID: PMC8423973 DOI: 10.1007/s13311-021-01036-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2021] [Indexed: 12/12/2022] Open
Abstract
Abnormal redox regulation is thought to contribute to schizophrenia (SCZ). Accumulating studies have shown that the plasma antioxidant enzyme activity is closely associated with the course and outcome in antipsychotics-naïve first-episode (ANFE) patients with SCZ. The main purpose of this study was to investigate the effect of risperidone on oxidative stress markers in ANFE patients and the relationship between risperidone response and changes in oxidative stress markers. Plasma activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) enzyme, total antioxidant status (TAS), and malondialdehyde (MDA) levels were measured in 354 ANFE patients and 152 healthy controls. The clinical symptoms were evaluated by the Positive and Negative Syndrome Scale (PANSS). Patients received risperidone monotherapy for 12 weeks and oxidative stress markers and PANSS were measured at baseline and at follow-up. Compared with healthy controls, the patients exhibited higher activities of SOD, CAT, and TAS levels, but lower MDA levels and GPx activity. A comparison between 168 responders and 50 non-responders at baseline and 12-week follow-up showed that GPx activity decreased in both groups after treatment. Moreover, GPx activity decreased less in responders and was higher in responders than in non-responders at follow-up. These results demonstrate that the redox regulatory system and antioxidant defense enzymes may have predictive value for the response of ANFE patients to risperidone treatment.
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Affiliation(s)
- Xi Rong Li
- Department of Sleep Medicine, Shandong Mental Health Center, Jinan, China
| | - Mei Hong Xiu
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Changping District, Beijing, 100096, China.
| | - Xiao Ni Guan
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Changping District, Beijing, 100096, China
| | - Yue Chan Wang
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Changping District, Beijing, 100096, China
| | - Jun Wang
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Changping District, Beijing, 100096, China
| | - Edison Leung
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center At Houston, Houston, TX, USA
| | - Xiang Yang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, 16 Lincui Road, Chaoyang District, Beijing, 100101, China.
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15
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Paladini MS, Spero V, Begni V, Marchisella F, Guidi A, Gruca P, Lason M, Litwa E, Papp M, Riva MA, Molteni R. Behavioral and molecular effects of the antipsychotic drug blonanserin in the chronic mild stress model. Pharmacol Res 2021; 163:105330. [PMID: 33276101 DOI: 10.1016/j.phrs.2020.105330] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/10/2020] [Accepted: 11/25/2020] [Indexed: 12/16/2022]
Abstract
Psychiatric disorders represent a critical challenge to our society, given their high global prevalence, complex symptomatology, elusive etiology and the variable effectiveness of pharmacological therapies. Recently, there has been a shift in investigating and redefining these diseases by integrating behavioral observations and multilevel neurobiological measures. Accordingly, endophenotype-oriented studies are needed to develop new therapeutic strategies, with the idea of targeting shared symptoms instead of one defined disease. With these premises, here we investigated the therapeutic properties of chronic treatment with the second-generation antipsychotic blonanserin in counteracting the alterations caused by 7 weeks of Chronic Mild Stress (CMS) in the rat. CMS is a well-established preclinical model able to induce depressive and anxiety-like alterations, which are shared by different psychiatric disorders. Our results demonstrated that the antipsychotic treatment normalizes the CMS-induced emotionality deficits, an effect that may be due to its ability in modulating, within the prefrontal cortex, redox mechanisms, a molecular dysfunction associated with several psychiatric disorders. These evidences provide new insights into the therapeutic properties and potential use of blonanserin as well as in its mechanisms of action and provide further support for the role of oxidative stress in the pathophysiology of psychiatric disorders.
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Affiliation(s)
- Maria Serena Paladini
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Vittoria Spero
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Veronica Begni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Francesca Marchisella
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Alice Guidi
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Piotr Gruca
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Magdalena Lason
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Ewa Litwa
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Maurisz Papp
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Marco A Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
| | - Raffaella Molteni
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
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16
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Caruso G, Grasso M, Fidilio A, Tascedda F, Drago F, Caraci F. Antioxidant Properties of Second-Generation Antipsychotics: Focus on Microglia. Pharmaceuticals (Basel) 2020; 13:ph13120457. [PMID: 33322693 PMCID: PMC7764768 DOI: 10.3390/ph13120457] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/26/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023] Open
Abstract
Recent studies suggest a primary role of oxidative stress in an early phase of the pathogenesis of schizophrenia and a strong neurobiological link has been found between dopaminergic system dysfunction, microglia overactivation, and oxidative stress. Different risk factors for schizophrenia increase oxidative stress phenomena raising the risk of developing psychosis. Oxidative stress induced by first-generation antipsychotics such as haloperidol significantly contributes to the development of extrapyramidal side effects. Haloperidol also exerts neurotoxic effects by decreasing antioxidant enzyme levels then worsening pro-oxidant events. Opposite to haloperidol, second-generation antipsychotics (or atypical antipsychotics) such as risperidone, clozapine, and olanzapine exert a strong antioxidant activity in experimental models of schizophrenia by rescuing the antioxidant system, with an increase in superoxide dismutase and glutathione (GSH) serum levels. Second-generation antipsychotics also improve the antioxidant status and reduce lipid peroxidation in schizophrenic patients. Interestingly, second-generation antipsychotics, such as risperidone, paliperidone, and in particular clozapine, reduce oxidative stress induced by microglia overactivation, decreasing the production of microglia-derived free radicals, finally protecting neurons against microglia-induced oxidative stress. Further, long-term clinical studies are needed to better understand the link between oxidative stress and the clinical response to antipsychotic drugs and the therapeutic potential of antioxidants to increase the response to antipsychotics.
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Affiliation(s)
- Giuseppe Caruso
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (M.G.); (F.C.)
- Correspondence: or
| | - Margherita Grasso
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (M.G.); (F.C.)
- Department of Laboratories, Oasi Research Institute—IRCCS, 94018 Troina, Italy
| | - Annamaria Fidilio
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.); (F.D.)
| | - Fabio Tascedda
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy;
- Center for Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Filippo Drago
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (A.F.); (F.D.)
| | - Filippo Caraci
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (M.G.); (F.C.)
- Department of Laboratories, Oasi Research Institute—IRCCS, 94018 Troina, Italy
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17
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Risperidone Treatment after Transient Ischemia Induces Hypothermia and Provides Neuroprotection in the Gerbil Hippocampus by Decreasing Oxidative Stress. Int J Mol Sci 2019; 20:ijms20184621. [PMID: 31540405 PMCID: PMC6770640 DOI: 10.3390/ijms20184621] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/06/2019] [Accepted: 09/15/2019] [Indexed: 12/11/2022] Open
Abstract
Compelling evidence from preclinical and clinical studies has shown that mild hypothermia is neuroprotective against ischemic stroke. We investigated the neuroprotective effect of post-risperidone (RIS) treatment against transient ischemic injury and its mechanisms in the gerbil brain. Transient ischemia (TI) was induced in the telencephalon by bilateral common carotid artery occlusion (BCCAO) for 5 min under normothermic condition (37 ± 0.2 °C). Treatment of RIS induced hypothermia until 12 h after TI in the TI-induced animals under uncontrolled body temperature (UBT) compared to that under controlled body temperature (CBT) (about 37 °C). Neuroprotective effect was statistically significant when we used 5 and 10 mg/kg doses (p < 0.05, respectively). In the RIS-treated TI group, many CA1 pyramidal neurons of the hippocampus survived under UBT compared to those under CBT. In this group under UBT, post-treatment with RIS to TI-induced animals markedly attenuated the activation of glial cells, an increase of oxidative stress markers [dihydroethidium, 8-hydroxy-2' -deoxyguanosine (8-OHdG), and 4-Hydroxynonenal (4-HNE)], and a decrease of superoxide dismutase 2 (SOD2) in their CA1 pyramidal neurons. Furthermore, RIS-induced hypothermia was significantly interrupted by NBOH-2C-CN hydrochloride (a selective 5-HT2A receptor agonist), but not bromocriptine mesylate (a D2 receptor agonist). Our findings indicate that RIS-induced hypothermia can effectively protect neuronal cell death from TI injury through attenuation of glial activation and maintenance of antioxidants, showing that 5-HT2A receptor is involved in RIS-induced hypothermia. Therefore, RIS could be introduced to reduce body temperature rapidly and might be applied to patients for hypothermic therapy following ischemic stroke.
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18
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Chen AT, Nasrallah HA. Neuroprotective effects of the second generation antipsychotics. Schizophr Res 2019; 208:1-7. [PMID: 30982644 DOI: 10.1016/j.schres.2019.04.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 03/17/2019] [Accepted: 04/05/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND In contrast to over 30 studies reporting neurotoxicity associated with the first-generation antipsychotics (FGAs), several published studies have reported multiple neuroprotective effects associated with the second generation antipsychotics (SGAs). This prompted us to conduct a review of the reported neuroprotective mechanisms of the SGA class of antipsychotics compared to the FGAs. METHODS A PubMed search was conducted using the keywords antipsychotic, neuroprotection, neuroplasticity, neurogenesis, neurotoxicity, toxicity, brain volume, neuroinflammation, oxidative stress, myelin, and oligodendrocyte. No restrictions were placed on the date of the articles or language. Studies with a clearly described methodology were included. RESULTS Animal, cell culture, and human clinical studies were identified. Twenty-four reports met the criteria for the search. All studies included at least one SGA (aripiprazole, clozapine, lurasidone, olanzapine, paliperidone, perospirone, quetiapine, risperidone, and/or ziprasidone). A few also included FGAs as a comparator (predominantly haloperidol). All studies demonstrated at least one neuroprotective mechanism of one or more SGAs, while some studies also showed that FGAs ranged from having no neuroprotective effects to actually exerting neurotoxic effects leading to neuronal death. CONCLUSIONS A review of the literature suggests that in addition to their antipsychotic efficacy and low motoric side effects, SGAs exert measurable neuroprotective effects mediated via multiple molecular mechanisms and often in a dose-dependent manner. The neuroprotective effects of SGAs range from preventative to restorative and may play a salutary role in ameliorating the neurodegenerative effects of psychosis.
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Affiliation(s)
- Alexander T Chen
- Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, 2010 Zonal Ave 1P10, Los Angeles, CA, USA.
| | - Henry A Nasrallah
- Department of Psychiatry and Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Blvd., Suite 105, Saint Louis, MO, USA.
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19
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Ghodsi R, Kheirouri S. Positive Association Between Plasma Levels of Advanced Glycation and Precursor of Lipoxidation end Products with Gastrointestinal Problems in Children with Autism. Curr Pediatr Rev 2019; 15:184-190. [PMID: 31264551 DOI: 10.2174/1573396315666190628141333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/08/2019] [Accepted: 05/15/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Increased oxidative stress has been reported in autistic patients besides, evidence linking oxidative stress to enhancement of advanced glycation and lipoxidation end products (AGEs and ALEs) and their precursors. OBJECTIVE This study aimed to compare the plasma levels of the AGEs and precursors of ALEs in autistic and healthy children and to evaluate their relationship with autism comorbidities. METHODS In this descriptive study, 54 children, 36 autistic and 18 healthy participated. Plasma levels of AGEs and precursors of ALEs were measured by ELISA method. Severity of autism and Gastrointestinal (GI) disorders were measured by GARSII questionnaire and QPGS-ROME III questionnaire, respectively. RESULTS Plasma levels of AGEs and precursors of ALEs in autistic children were comparable with healthy children. Plasma levels of AGEs and precursor of ALEs were correlated with physical activity and GI disorders in autistic children. A strong association was also found between AGEs and precursors of ALEs. CONCLUSION The results indicate that AGEs and ALEs have a strong correlation together but the AGEs and precursor of ALEs in autistic children are not different from healthy children.
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Affiliation(s)
- Ramin Ghodsi
- Department of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sorayya Kheirouri
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Tran HQ, Park SJ, Shin EJ, Tran TV, Sharma N, Lee YJ, Jeong JH, Jang CG, Kim DJ, Nabeshima T, Kim HC. Clozapine attenuates mitochondrial burdens and abnormal behaviors elicited by phencyclidine in mice via inhibition of p47 phox; Possible involvements of phosphoinositide 3-kinase/Akt signaling. J Psychopharmacol 2018; 32:1233-1251. [PMID: 30207504 DOI: 10.1177/0269881118795244] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Oxidative stress and mitochondrial dysfunction have been implicated in the pathophysiology of schizophrenia. AIMS We investigated whether antipsychotic clozapine modulates nicotinamide adenine dinucleotide phosphate oxidase and mitochondrial burdens induced by phencyclidine in mice. METHODS We examined the effect of clozapine on nicotinamide adenine dinucleotide phosphate oxidase activation, mitochondrial burdens (i.e. oxidative stress and mitochondrial dysfunction), and activities of enzymatic antioxidant in the prefrontal cortex, and subsequent abnormal behaviors induced by repeated treatment with phencyclidine. p47 phox Knockout mice and LY294002, a phosphoinositide 3-kinase inhibitor, were employed to elucidate the pharmacological mechanism of clozapine. RESULTS Phencyclidine treatment resulted in an early increase nicotinamide adenine dinucleotide phosphate oxidase activity, membrane translocation of p47 phox, interaction between p-Akt and p47 phox, and mitochondrial burdens in wild-type mice. Although these increases returned to near control level four days post-phencyclidine, mitochondrial superoxide dismutase and glutathione peroxidase activities were decreased at that time. Clozapine, LY294002, or p47 phox knockout significantly ameliorated social withdrawal and recognition memory deficits produced by phencyclidine. Importantly, LY294002 did not significantly alter the effects of clozapine against abnormal behaviors and the interaction between p-Akt and p47 phox induced by phencyclidine. Furthermore, neither LY294002 nor clozapine exhibited any additive effects to the protection afforded by p47 phox knockout against phencyclidine insult. CONCLUSION Our results suggest that p47 phox gene mediates phencyclidine-induced mitochondrial burdens and abnormal behaviors, and that the interactive modulation between p47 phox and phosphoinositide 3-kinase/Akt is important for the understanding on the pharmacological mechanism of clozapine.
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Affiliation(s)
- Hai-Quyen Tran
- 1 Neuropsychopharmacology and Toxicology Program, Kangwon National University, Chunchon, Republic of Korea
| | - Se J Park
- 2 School of Natural Resources and Environmental Sciences, Kangwon National University, Chunchon, Republic of Korea
| | - Eun-Joo Shin
- 1 Neuropsychopharmacology and Toxicology Program, Kangwon National University, Chunchon, Republic of Korea
| | - The-Vinh Tran
- 1 Neuropsychopharmacology and Toxicology Program, Kangwon National University, Chunchon, Republic of Korea
| | - Naveen Sharma
- 1 Neuropsychopharmacology and Toxicology Program, Kangwon National University, Chunchon, Republic of Korea
| | - Yu J Lee
- 3 Clinical Pharmacy, Kangwon National University, Chunchon, Republic of Korea
| | - Ji H Jeong
- 4 Department of Pharmacology, Chung-Ang University, Seoul, Republic of Korea
| | - Choon-Gon Jang
- 5 Department of Pharmacology, Sungkyunkwan University, Suwon, Korea
| | - Dae-Joong Kim
- 6 Department of Anatomy and Cell Biology, Kangwon National University, Chunchon, Korea
| | - Toshitaka Nabeshima
- 7 Advanced Diagnostic System Research Laboratory, Fujita Health University Graduate School of Health Sciences, Toyoake, Japan.,9 Japanese Drug Organization of Appropriate Use and Research, Nagoya, Japan
| | - Hyoung-Chun Kim
- 1 Neuropsychopharmacology and Toxicology Program, Kangwon National University, Chunchon, Republic of Korea
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21
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Al-Amin MM, Choudhury MFR, Chowdhury AS, Chowdhury TR, Jain P, Kazi M, Alkholief M, Alshehri SM, Reza HM. Pretreatment With Risperidone Ameliorates Systemic LPS-Induced Oxidative Stress in the Cortex and Hippocampus. Front Neurosci 2018; 12:384. [PMID: 29937710 PMCID: PMC6002684 DOI: 10.3389/fnins.2018.00384] [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] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 05/22/2018] [Indexed: 11/30/2022] Open
Abstract
Risperidone (RIS), an atypical antipsychotic has been found to show anti-inflammatory effect against lipopolysaccharide (LPS)-induced inflammation. In vitro study has revealed that RIS inhibits the LPS-induced reactive oxygen species (ROS) formation. We investigated the antioxidant effects of RIS on LPS-induced oxidative stress markers in Swiss albino mice. Ten weeks old male Swiss albino mice (30 ± 2 g) were pretreated with either distilled water (control) or RIS (3 mg/kg) for 7 days. On day 8, animals were challenged with a single dose of LPS (0.8 mg/kg) while control animals received distilled water only. The animals were sacrificed after 24 h of LPS administration and tissue samples were collected. RIS administration significantly (p < 0.05) reduced the LPS-induced elevated levels of lipid peroxidation product malondialdehyde (MDA), advanced protein oxidation products, and nitric oxide (NO) in the cortex. Catalase (CAT) and superoxide dismutase (SOD) levels were also diminished while the level of glutathione (GSH) was enhanced. Hippocampus data showed that RIS significantly (p < 0.05) reduced the LPS-induced increased levels of MDA and NO, and SOD activity. Our results suggest that LPS-induced neuronal oxidative damage can be alleviated by the pretreatment with RIS and the effect is shown presumably by scavenging of the ROS by risperidone as an antioxidant.
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Affiliation(s)
- Md Mamun Al-Amin
- Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh
| | | | - Al Saad Chowdhury
- Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh
| | | | - Preeti Jain
- Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Musaed Alkholief
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sultan M Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hasan Mahmud Reza
- Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh
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22
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Xue F, Chen YC, Zhou CH, Wang Y, Cai M, Yan WJ, Wu R, Wang HN, Peng ZW. Risperidone ameliorates cognitive deficits, promotes hippocampal proliferation, and enhances Notch signaling in a murine model of schizophrenia. Pharmacol Biochem Behav 2017; 163:101-109. [PMID: 29037878 DOI: 10.1016/j.pbb.2017.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 09/26/2017] [Accepted: 09/28/2017] [Indexed: 12/11/2022]
Abstract
Antipsychotic agents have been reported to promote hippocampal neurogenesis and improve cognitive deficits; yet, the molecular mechanisms underlying these actions remain unclear. In the present study, we used a murine model of schizophrenia induced by 5-day intraperitoneal injection with the non-competitive N-methyl-d-aspartate receptor antagonist MK801 (0.3mg/kg/day) to assess cognitive behavioral deficits, changes in Notch signaling, and cellular proliferation in the hippocampus of adult male C57BL/6 mice after 2-week administration of risperidone (Rip, 0.2mg/kg/day) or vehicle. We then utilized in vivo stereotaxic injections of a lentivirus expressing a short hairpin RNA (shRNA) for Notch1 into the dentate gyrus to examine the role of Notch1 in the observed actions of Rip. We found that Rip ameliorated cognitive deficits and restored cell proliferation in MK801-treated mice in a manner associated with the up-regulation of Notch signaling molecules, including Notch1, Hes1, and Hes5. Moreover, these effects were abolished by pretreatment with Notch1 shRNA. Our results suggest that the ability of Rip to improve cognitive function in schizophrenia is mediated in part by Notch signaling.
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Affiliation(s)
- Fen Xue
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yun-Chun Chen
- Department of Psychiatry, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710049, China
| | - Cui-Hong Zhou
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Ying Wang
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Min Cai
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Wen-Jun Yan
- Department of Anesthesiology, Gansu Provincial Hospital, Lanzhou 730000, China
| | - Rui Wu
- Xi'an Center for Disease Control and Prevention, Xi'an 710032, China
| | - Hua-Ning Wang
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Zheng-Wu Peng
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
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23
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Nikolić T, Petronijević M, Sopta J, Velimirović M, Stojković T, Jevtić Dožudić G, Aksić M, Radonjić NV, Petronijević N. Haloperidol affects bones while clozapine alters metabolic parameters - sex specific effects in rats perinatally treated with phencyclidine. BMC Pharmacol Toxicol 2017; 18:65. [PMID: 29020988 PMCID: PMC5637335 DOI: 10.1186/s40360-017-0171-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 10/03/2017] [Indexed: 01/26/2023] Open
Abstract
Background The presentation of schizophrenia (SCH) symptoms differs between the sexes. Long-term treatment with antipsychotics is frequently associated with decreased bone mineral density, increased fracture risk and metabolic side effects. Perinatal phencyclidine (PCP) administration to rodents represents an animal model of SCH. The aim of this study was to assess the effects of chronic haloperidol and clozapine treatment on bone mass, body composition, corticosterone, IL-6 and TNF-α concentrations and metabolic parameters in male and female rats perinatally treated with PCP. Methods Six groups of male and six groups of female rats (n = 6-12 per group) were subcutaneously treated on 2nd, 6th, 9th and 12th postnatal day (PN), with either PCP (10 mg/kg) or saline. At PN35, one NaCl and PCP group (NaCl-H and PCP-H) started receiving haloperidol (1 mg/kg/day) and one NaCl and PCP group (NaCl-C and PCP-C) started receiving clozapine (20 mg/kg/day) dissolved in drinking water. The remaining NaCl and PCP groups received water. Dual X-ray absorptiometry measurements were performed on PN60 and PN98. Animals were sacrificed on PN100. Femur was analysed by light microscopy. Concentrations of corticosterone, TNF-α and IL-6 were measured in serum samples using enzyme-linked immunosorbent assay (ELISA) commercially available kits. Glucose, cholesterol and triacylglycerol concentrations were measured in serum spectrophotometrically. Results Our results showed that perinatal PCP administration causes a significant decrease in bone mass and deterioration in bone quality in male and female rats. Haloperidol had deleterious, while clozapine had protective effect on bones. The effects of haloperidol on bones were more pronounced in male rats. It seems that the observed changes are not the consequence of the alterations of corticosterone, IL-6 and TNF-α concentration since no change of these factors was observed. Clozapine induced increase of body weight and retroperitoneal fat in male rats regardless of perinatal treatment. Furthermore, clozapine treatment caused sex specific increase in pro-inflammatory cytokines. Conclusion Taken together our findings confirm that antipsychotics have complex influence on bone and metabolism. Evaluation of potential markers for individual risk of antipsychotics induced adverse effects could be valuable for improvement of therapy of this life-long lasting disease. Electronic supplementary material The online version of this article (10.1186/s40360-017-0171-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tatjana Nikolić
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milan Petronijević
- Military Medical Academy, Clinic of Rheumatology, University of Defence, Belgrade, Serbia
| | - Jelena Sopta
- Institute of Pathology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Velimirović
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tihomir Stojković
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Gordana Jevtić Dožudić
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milan Aksić
- Institute of Anatomy "Niko Miljanic", School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nevena V Radonjić
- Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT, USA
| | - Nataša Petronijević
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia.
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24
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Steullet P, Cabungcal JH, Coyle J, Didriksen M, Gill K, Grace AA, Hensch TK, LaMantia AS, Lindemann L, Maynard TM, Meyer U, Morishita H, O'Donnell P, Puhl M, Cuenod M, Do KQ. Oxidative stress-driven parvalbumin interneuron impairment as a common mechanism in models of schizophrenia. Mol Psychiatry 2017; 22:936-943. [PMID: 28322275 PMCID: PMC5491690 DOI: 10.1038/mp.2017.47] [Citation(s) in RCA: 234] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 12/21/2016] [Accepted: 01/17/2017] [Indexed: 02/08/2023]
Abstract
Parvalbumin inhibitory interneurons (PVIs) are crucial for maintaining proper excitatory/inhibitory balance and high-frequency neuronal synchronization. Their activity supports critical developmental trajectories, sensory and cognitive processing, and social behavior. Despite heterogeneity in the etiology across schizophrenia and autism spectrum disorder, PVI circuits are altered in these psychiatric disorders. Identifying mechanism(s) underlying PVI deficits is essential to establish treatments targeting in particular cognition. On the basis of published and new data, we propose oxidative stress as a common pathological mechanism leading to PVI impairment in schizophrenia and some forms of autism. A series of animal models carrying genetic and/or environmental risks relevant to diverse etiological aspects of these disorders show PVI deficits to be all accompanied by oxidative stress in the anterior cingulate cortex. Specifically, oxidative stress is negatively correlated with the integrity of PVIs and the extracellular perineuronal net enwrapping these interneurons. Oxidative stress may result from dysregulation of systems typically affected in schizophrenia, including glutamatergic, dopaminergic, immune and antioxidant signaling. As convergent end point, redox dysregulation has successfully been targeted to protect PVIs with antioxidants/redox regulators across several animal models. This opens up new perspectives for the use of antioxidant treatments to be applied to at-risk individuals, in close temporal proximity to environmental impacts known to induce oxidative stress.
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Affiliation(s)
- P Steullet
- Centre for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital, Prilly-Lausanne, Switzerland
| | - J-H Cabungcal
- Centre for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital, Prilly-Lausanne, Switzerland
| | - J Coyle
- Laboratory for Psychiatric and Molecular Neuroscience, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - M Didriksen
- Synaptic transmission H. Lundbeck A/S, Valby, Denmark
| | - K Gill
- Departments of Neuroscience, Psychiatry and Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - A A Grace
- Departments of Neuroscience, Psychiatry and Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - T K Hensch
- Center for Brain Science, Department of Molecular Cellular Biology, Harvard University, Cambridge, MA USA,FM Kirby Neurobiology Center, Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - A-S LaMantia
- George Washington Institute for Neuroscience, The George Washington University, Washington, DC, USA
| | - L Lindemann
- F. Hoffmann-La Roche, Roche Pharmaceutical and Early Development, Neuroscience, Opthalmology & Rare Disease (NORD) DTA, Discovery Neuroscience, Roche Innovation Center Basel, Basel, Switzerland
| | - T M Maynard
- George Washington Institute for Neuroscience, The George Washington University, Washington, DC, USA
| | - U Meyer
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| | - H Morishita
- Center for Brain Science, Department of Molecular Cellular Biology, Harvard University, Cambridge, MA USA,FM Kirby Neurobiology Center, Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA,Department of Psychiatry, Neuroscience, and Ophthalmology, Friedman Brain Institute, Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, NY, USA
| | - P O'Donnell
- Neuroscience and Pain Research Unit, BioTherapeutics Research and Development, Pfizer, Cambridge, MA, USA
| | - M Puhl
- Laboratory for Psychiatric and Molecular Neuroscience, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - M Cuenod
- Centre for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital, Prilly-Lausanne, Switzerland
| | - K Q Do
- Centre for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital, Prilly-Lausanne, Switzerland,Center for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital, Prilly-Lausanne CH-1008, Switzerland. E-mail:
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25
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Long-Term Effects of Maternal Deprivation on Redox Regulation in Rat Brain: Involvement of NADPH Oxidase. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7390516. [PMID: 28408971 PMCID: PMC5376945 DOI: 10.1155/2017/7390516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/23/2017] [Accepted: 03/01/2017] [Indexed: 01/16/2023]
Abstract
Maternal deprivation (MD) causes perinatal stress, with subsequent behavioral changes which resemble the symptoms of schizophrenia. The NADPH oxidase is one of the major generators of reactive oxygen species, known to play a role in stress response in different tissues. The aim of this study was to elucidate the long-term effects of MD on the expression of NADPH oxidase subunits (gp91phox, p22phox, p67phox, p47phox, and p40phox). Activities of cytochrome C oxidase and respiratory chain Complex I, as well as the oxidative stress parameters using appropriate spectrophotometric techniques were analyzed. Nine-day-old Wistar rats were exposed to a 24 h maternal deprivation and sacrificed at young adult age. The structures affected by perinatal stress, cortex, hippocampus, thalamus, and caudate nuclei were investigated. The most prominent findings were increased expressions of gp91phox in the cortex and hippocampus, increased expression of p22phox and p40phox, and decreased expression of gp91phox, p22phox, and p47phox in the caudate nuclei. Complex I activity was increased in all structures except cortex. Content of reduced glutathione was decreased in all sections while region-specific changes of other oxidative stress parameters were found. Our results indicate the presence of long-term redox alterations in MD rats.
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26
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Steullet P, Cabungcal JH, Monin A, Dwir D, O'Donnell P, Cuenod M, Do KQ. Redox dysregulation, neuroinflammation, and NMDA receptor hypofunction: A "central hub" in schizophrenia pathophysiology? Schizophr Res 2016; 176:41-51. [PMID: 25000913 PMCID: PMC4282982 DOI: 10.1016/j.schres.2014.06.021] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/06/2014] [Accepted: 06/08/2014] [Indexed: 12/18/2022]
Abstract
Accumulating evidence points to altered GABAergic parvalbumin-expressing interneurons and impaired myelin/axonal integrity in schizophrenia. Both findings could be due to abnormal neurodevelopmental trajectories, affecting local neuronal networks and long-range synchrony and leading to cognitive deficits. In this review, we present data from animal models demonstrating that redox dysregulation, neuroinflammation and/or NMDAR hypofunction (as observed in patients) impairs the normal development of both parvalbumin interneurons and oligodendrocytes. These observations suggest that a dysregulation of the redox, neuroimmune, and glutamatergic systems due to genetic and early-life environmental risk factors could contribute to the anomalies of parvalbumin interneurons and white matter in schizophrenia, ultimately impacting cognition, social competence, and affective behavior via abnormal function of micro- and macrocircuits. Moreover, we propose that the redox, neuroimmune, and glutamatergic systems form a "central hub" where an imbalance within any of these "hub" systems leads to similar anomalies of parvalbumin interneurons and oligodendrocytes due to the tight and reciprocal interactions that exist among these systems. A combination of vulnerabilities for a dysregulation within more than one of these systems may be particularly deleterious. For these reasons, molecules, such as N-acetylcysteine, that possess antioxidant and anti-inflammatory properties and can also regulate glutamatergic transmission are promising tools for prevention in ultra-high risk patients or for early intervention therapy during the first stages of the disease.
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Affiliation(s)
- P Steullet
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Site de Cery, 1008 Prilly-Lausanne, Switzerland
| | - J H Cabungcal
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Site de Cery, 1008 Prilly-Lausanne, Switzerland
| | - A Monin
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Site de Cery, 1008 Prilly-Lausanne, Switzerland
| | - D Dwir
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Site de Cery, 1008 Prilly-Lausanne, Switzerland
| | - P O'Donnell
- Neuroscience Research Unit, Pfizer, Inc., 700 Main Street, Cambridge, MA 02139, USA
| | - M Cuenod
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Site de Cery, 1008 Prilly-Lausanne, Switzerland
| | - K Q Do
- Center for Psychiatric Neuroscience, Department of Psychiatry, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Site de Cery, 1008 Prilly-Lausanne, Switzerland.
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27
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Koga M, Serritella AV, Sawa A, Sedlak TW. Implications for reactive oxygen species in schizophrenia pathogenesis. Schizophr Res 2016; 176:52-71. [PMID: 26589391 DOI: 10.1016/j.schres.2015.06.022] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/20/2015] [Accepted: 06/23/2015] [Indexed: 12/18/2022]
Abstract
Oxidative stress is a well-recognized participant in the pathophysiology of multiple brain disorders, particularly neurodegenerative conditions such as Alzheimer's and Parkinson's diseases. While not a dementia, a wide body of evidence has also been accumulating for aberrant reactive oxygen species and inflammation in schizophrenia. Here we highlight roles for oxidative stress as a common mechanism by which varied genetic and epidemiologic risk factors impact upon neurodevelopmental processes that underlie the schizophrenia syndrome. While there is longstanding evidence that schizophrenia may not have a single causative lesion, a common pathway involving oxidative stress opens the possibility for intervention at susceptible phases.
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Affiliation(s)
- Minori Koga
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA
| | - Anthony V Serritella
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA
| | - Akira Sawa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA
| | - Thomas W Sedlak
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA.
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28
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Li M. Antipsychotic-induced sensitization and tolerance: Behavioral characteristics, developmental impacts, and neurobiological mechanisms. J Psychopharmacol 2016; 30:749-70. [PMID: 27371498 PMCID: PMC4944179 DOI: 10.1177/0269881116654697] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Antipsychotic sensitization and tolerance refer to the increased and decreased drug effects due to past drug use, respectively. Both effects reflect the long-term impacts of antipsychotic treatment on the brain and result from the brain's adaptive response to the foreign property of the drug. In this review, clinical evidence of the behavioral aspect of antipsychotic sensitization and tolerance is selectively reviewed, followed by an overview of preclinical literature that examines these behavioral characteristics and the related pharmacological and nonpharmacological factors. Next, recent work on the developmental impacts of adolescent antipsychotic sensitization and tolerance is presented and recent research that delineates the neurobiological mechanisms of antipsychotic sensitization and tolerance is summarized. A theoretical framework based on "drug learning and memory" principles is proposed to account for the phenomena of antipsychotic sensitization and tolerance. It is maintained that antipsychotic sensitization and tolerance follow basic principles of learning or acquisition ("induction") and memory ("expression"). The induction and expression of both effects reflect the consequences of associative and nonassociative processing and are strongly influenced by various pharmacological, environmental, and behavioral factors. Drug-induced neuroplasticity, such as functional changes of striatal dopamine D2 and prefrontal serotonin (5-HT)2A receptors and their mediated signaling pathways, in principle, is responsible for antipsychotic sensitization and tolerance. Understanding the behavioral characteristics and neurobiological underpinnings of antipsychotic sensitization and tolerance has greatly enhanced our understanding of mechanisms of antipsychotic action, and may have important implications for future drug discovery and clinical practice.
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Affiliation(s)
- Ming Li
- Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE, USA
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29
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Moe AAK, Scott JG, Burne TH, Eyles DW. Neural changes induced by antipsychotic administration in adolescence: A review of studies in laboratory rodents. J Psychopharmacol 2016; 30:771-94. [PMID: 27413140 DOI: 10.1177/0269881116654776] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Adolescence is characterized by major remodelling processes in the brain. Use of antipsychotic drugs (APDs) in adolescents has increased dramatically in the last 20 years; however, our understanding of the neurobiological consequences of APD treatment on the adolescent brain has not kept the same pace and significant concerns have been raised. In this review, we examined currently available preclinical studies of the effects of APDs on the adolescent brain. In animal models of neuropsychiatric disorders, adolescent APD treatment appears to be protective against selected structural, behavioural and neurochemical phenotypes. In "neurodevelopmentally normal" adolescent animals, a range of short- and long-term alterations in behaviour and neurochemistry have been reported. In particular, the adolescent brain appears to be sensitive to long-term locomotor/reward effects of chronic atypical APDs in contrast with the outcomes in adults. Long-lasting changes in dopaminergic, glutamatergic and gamma-amino butyric acid-ergic systems induced by adolescent APD administration have been observed in the nucleus accumbens. A detailed examination of other potential target regions such as striatum, prefrontal cortex and ventral tegmental area is still required. Through identification of specific neural pathways targeted by adolescent APD treatment, future studies will expand the current knowledge on long-term neural outcomes which are of translational value.
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Affiliation(s)
- Aung Aung Kywe Moe
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia
| | - James G Scott
- Queensland Centre for Mental Health Research, Wacol, QLD, Australia Discipline of Psychiatry, School of Medicine, The University of Queensland Centre for Clinical Research, Herston, QLD, Australia Metro North Mental Health Service, Royal Brisbane and Women's Hospital, Herston, QLD, Australia
| | - Thomas Hj Burne
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia Queensland Centre for Mental Health Research, Wacol, QLD, Australia
| | - Darryl W Eyles
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia Queensland Centre for Mental Health Research, Wacol, QLD, Australia
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Jevtić G, Nikolić T, Mirčić A, Stojković T, Velimirović M, Trajković V, Marković I, Trbovich AM, Radonjić NV, Petronijević ND. Mitochondrial impairment, apoptosis and autophagy in a rat brain as immediate and long-term effects of perinatal phencyclidine treatment - influence of restraint stress. Prog Neuropsychopharmacol Biol Psychiatry 2016; 66:87-96. [PMID: 26655035 DOI: 10.1016/j.pnpbp.2015.11.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/24/2015] [Accepted: 11/30/2015] [Indexed: 01/09/2023]
Abstract
Phencyclidine (PCP) acts as a non-competitive antagonist of glutamatergic N-methyl-d-aspartate receptor. Its perinatal administration to rats causes pathophysiological changes that mimick some pathological features of schizophrenia (SCH). Numerous data indicate that abnormalities in mitochondrial structure and function could be associated with the development of SCH. Mitochondrial dysfunction could result in the activation of apoptosis and/or autophagy. The aim of this study was to assess immediate and long-term effects of perinatal PCP administration and acute restraint stress on the activity of respiratory chain enzymes, expression of apoptosis and autophagy markers and ultrastructural changes in the cortex and hippocampus of the rat brain. Six groups of rats were subcutaneously treated on 2nd, 6th, 9th and 12th postnatal days (P), with either PCP (10mg/kg) or saline (0.9% NaCl). One NaCl and one PCP group were sacrificed on P13, while other two NaCl and PCP groups were sacrificed on P70. The remaining two NaCl and PCP groups were subjected to 1h restraint stress prior sacrifice on P70. Activities of respiratory chain enzymes were assessed spectrophotometrically. Expression of caspase 3 and AIF as markers of apoptosis and Beclin 1, p62 and LC3, as autophagy markers, was assessed by Western blot. Morphological changes of cortical and hippocampal ultrastructure were determined by transmission electron microscopy. Immediate effects of perinatal PCP administration at P13 were increased activities of complex I in the hippocampus and cytochrome c oxidase (COX) in the cortex and hippocampus implying mitochondrial dysfunction. These changes were followed by increased expression of apoptotic markers. However the measurement of autophagy markers at this time point has revealed decrease of this process in cortex and the absence of changes in hippocampus. At P70 the activity of complex I was unchanged while COX activity was significantly decreased in cortex and increased in the hippocampus. Expressions of apoptotic markers were still significantly higher in PCP perinatally treated rats in all investigated structures, but the changes of autophagy markers have indicated increased level of autophagy also in both structures. Restraint stress on P70 has caused increase of COX activity both in NaCl and PCP perinatally treated rats, but this increase was lower in PCP group. Also, restraint stress resulted in decrease of apoptotic and increase of autophagy processes especially in the hippocampus of PCP perinatally treated group. The presence of apoptosis and autophagy in the brain was confirmed by transmission electron microscopy. In this study we have demonstrated for the first time the presence of autophagy in PCP model of SCH. Also, we have shown increased sensitivity of PCP perinatally treated rats to restraint stress, manifested in alterations of apoptotic and autophagy markers. The future studies are necessary to elucidate the role of mitochondria in the pathophysiology of SCH and putative significance for development of novel therapeutic strategies.
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Affiliation(s)
- Gordana Jevtić
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Tatjana Nikolić
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Aleksandar Mirčić
- Institute of Histology and Embryology, School of Medicine, University of Belgrade, Višegradska 26, 11000 Belgrade, Serbia
| | - Tihomir Stojković
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Milica Velimirović
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Vladimir Trajković
- Institute of Microbiology and Immunology, School of Medicine, University of Belgrade, Dr Subotića 1, 11000 Belgrade, Serbia
| | - Ivanka Marković
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Alexander M Trbovich
- Department of Pathological Physiology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000 Belgrade, Serbia
| | - Nevena V Radonjić
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia
| | - Nataša D Petronijević
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, 11000 Belgrade, Serbia.
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Brennan BP, Jensen JE, Perriello C, Pope HG, Jenike MA, Hudson JI, Rauch SL, Kaufman MJ. LOWER POSTERIOR CINGULATE CORTEX GLUTATHIONE LEVELS IN OBSESSIVE-COMPULSIVE DISORDER. BIOLOGICAL PSYCHIATRY: COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2016; 1:116-124. [PMID: 26949749 DOI: 10.1016/j.bpsc.2015.12.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Several lines of evidence support the hypothesis that lower cerebral levels of glutathione (GSH), associated with increased oxidative stress, may contribute to obsessive-compulsive disorder (OCD). However, no studies to date have investigated brain GSH levels in individuals with OCD. METHODS Twenty-nine individuals with OCD and 25 age-, sex-, and race-matched comparison individuals without OCD underwent single voxel 2D J-resolved proton magnetic resonance spectroscopy (MRS) to examine GSH levels in the posterior cingulate cortex (PCC). MRS data were analyzed using LCModel and a simulated basis set. Group metabolite differences referenced to total creatine (Cr), as well as relationships between metabolite ratios and symptom severity as measured by the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), were analyzed using linear regression with adjustment for age, sex, and race. RESULTS One OCD participant failed to produce usable PCC MRS data. We found significantly lower PCC GSH/Cr in OCD participants compared with non-OCD participants (β = -0.027 [95% CI: -0.049 to -5.9 × 10-3]; P = 0.014). PCC GSH/Cr was not significantly associated with total Y-BOCS score in the OCD group (β = 5.7 × 10-4 [95% CI: -4.8 × 10-3 to 5.9 × 10-3]; P = 0.83). CONCLUSIONS Lower PCC GSH/Cr may be indicative of increased oxidative stress secondary to hypermetabolism in this brain region in OCD. Future MRS studies are warranted to investigate GSH levels in other brain regions that comprise the cortico-striato-thalamo-cortical circuit thought to be abnormal in OCD.
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Affiliation(s)
- Brian P Brennan
- Biological Psychiatry Laboratory, McLean Hospital, Belmont, MA; Obsessive-Compulsive Disorders Institute, McLean Hospital, Belmont, MA; Department of Psychiatry, Harvard Medical School, Boston, MA
| | - J Eric Jensen
- Department of Psychiatry, Harvard Medical School, Boston, MA; McLean Imaging Center, McLean Hospital, Belmont, MA
| | | | - Harrison G Pope
- Biological Psychiatry Laboratory, McLean Hospital, Belmont, MA; Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Michael A Jenike
- Obsessive-Compulsive Disorders Institute, McLean Hospital, Belmont, MA; Department of Psychiatry, Harvard Medical School, Boston, MA
| | - James I Hudson
- Biological Psychiatry Laboratory, McLean Hospital, Belmont, MA; Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Scott L Rauch
- Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Marc J Kaufman
- Department of Psychiatry, Harvard Medical School, Boston, MA; McLean Imaging Center, McLean Hospital, Belmont, MA
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Abstract
Over the past 60 years, a large number of selective neurotoxins were discovered and developed, making it possible to animal-model a broad range of human neuropsychiatric and neurodevelopmental disorders. In this paper, we highlight those neurotoxins that are most commonly used as neuroteratologic agents, to either produce lifelong destruction of neurons of a particular phenotype, or a group of neurons linked by a specific class of transporter proteins (i.e., dopamine transporter) or body of receptors for a specific neurotransmitter (i.e., NMDA class of glutamate receptors). Actions of a range of neurotoxins are described: 6-hydroxydopamine (6-OHDA), 6-hydroxydopa, DSP-4, MPTP, methamphetamine, IgG-saporin, domoate, NMDA receptor antagonists, and valproate. Their neuroteratologic features are outlined, as well as those of nerve growth factor, epidermal growth factor, and that of stress. The value of each of these neurotoxins in animal modeling of human neurologic, neurodegenerative, and neuropsychiatric disorders is discussed in terms of the respective value as well as limitations of the derived animal model. Neuroteratologic agents have proven to be of immense importance for understanding how associated neural systems in human neural disorders may be better targeted by new therapeutic agents.
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Affiliation(s)
- Trevor Archer
- Department of Psychology, University of Gothenburg, Box 500, 430 50, Gothenburg, Sweden.
| | - Richard M Kostrzewa
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, PO Box 70577, Johnson City, TN, 37614, USA
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Huang Y, Pai C, Cheng K, Kuo W, Chen M, Chang K. Dopamine D2/D3 receptor binding of [123I]epidepride in risperidone-treatment chronic MK-801-induced rat schizophrenia model using nanoSPECT/CT neuroimaging. Nucl Med Biol 2014; 41:681-7. [DOI: 10.1016/j.nucmedbio.2014.04.133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/15/2014] [Accepted: 04/25/2014] [Indexed: 01/03/2023]
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Samuelsson M, Skogh E, Lundberg K, Vrethem M, Öllinger K. Taurine and glutathione in plasma and cerebrospinal fluid in olanzapine treated patients with schizophrenia. Psychiatry Res 2013; 210:819-24. [PMID: 24113127 DOI: 10.1016/j.psychres.2013.09.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/04/2013] [Accepted: 09/12/2013] [Indexed: 01/22/2023]
Abstract
Oxidative stress has been implicated in the pathophysiology of schizophrenia. Taurine and glutathione (GSH) have antioxidant and central nervous system protective properties, and are proposed to be involved in the pathology of schizophrenia. The aim of this study was to compare the blood and cerebrospinal fluid (CSF) levels of taurine and GSH in patients with schizophrenia, medicated with oral olanzapine, compared with controls. In total, 37 patients with schizophrenia and 45 healthy volunteers were recruited. We found the plasma taurine levels to be elevated in patients compared with controls. No differences were, however, found between patients and controls regarding taurine in CSF or GSH concentrations in plasma and CSF. Moreover, in the patient group no correlations between taurine and GSH levels and the symptoms or function of the disorder were found. The higher levels of plasma but not CSF taurine in patients with schizophrenia treated with OLA may implicate the involvement of taurine in the pathophysiology of the disease. The absence of GSH differences both in plasma and CSF between patients and controls is interesting in the perspective of earlier research proposing a dysregulation of GSH metabolism as a vulnerability factor for the development of schizophrenia.
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Affiliation(s)
- Martin Samuelsson
- Division of Psychiatry, Department of Clinical and Experimental Medicine, Linköping University, S-58185 Linköping, Sweden.
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Gu F, Chauhan V, Chauhan A. Impaired synthesis and antioxidant defense of glutathione in the cerebellum of autistic subjects: alterations in the activities and protein expression of glutathione-related enzymes. Free Radic Biol Med 2013; 65:488-496. [PMID: 23892356 DOI: 10.1016/j.freeradbiomed.2013.07.021] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/03/2013] [Accepted: 07/12/2013] [Indexed: 12/24/2022]
Abstract
Autism is a neurodevelopmental disorder associated with social deficits and behavioral abnormalities. Recent evidence in autism suggests a deficit in glutathione (GSH), a major endogenous antioxidant. It is not known whether the synthesis, consumption, and/or regeneration of GSH is affected in autism. In the cerebellum tissues from autism (n=10) and age-matched control subjects (n=10), the activities of GSH-related enzymes glutathione peroxidase (GPx), glutathione-S-transferase (GST), glutathione reductase (GR), and glutamate cysteine ligase (GCL) involved in antioxidant defense, detoxification, GSH regeneration, and synthesis, respectively, were analyzed. GCL is a rate-limiting enzyme for GSH synthesis, and the relationship between its activity and the protein expression of its catalytic subunit GCLC and its modulatory subunit GCLM was also compared between the autistic and the control groups. Results showed that the activities of GPx and GST were significantly decreased in autism compared to that of the control group (P<0.05). Although there was no significant difference in GR activity between autism and control groups, 40% of autistic subjects showed lower GR activity than 95% confidence interval (CI) of the control group. GCL activity was also significantly reduced by 38.7% in the autistic group compared to the control group (P=0.023), and 8 of 10 autistic subjects had values below 95% CI of the control group. The ratio of protein levels of GCLC to GCLM in the autism group was significantly higher than that of the control group (P=0.022), and GCLM protein levels were reduced by 37.3% in the autistic group compared to the control group. A positive strong correlation was observed between GCL activity and protein levels of GCLM (r=0.887) and GCLC (r=0.799) subunits in control subjects but not in autistic subjects, suggesting that regulation of GCL activity is affected in autism. These results suggest that enzymes involved in GSH homeostasis have impaired activities in the cerebellum in autism, and lower GCL activity in autism may be related to decreased protein expression of GCLM.
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Affiliation(s)
- Feng Gu
- NYS Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314, USA
| | - Ved Chauhan
- NYS Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314, USA
| | - Abha Chauhan
- NYS Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314, USA.
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Monte AS, de Souza GC, McIntyre RS, Soczynska JK, dos Santos JV, Cordeiro RC, Ribeiro BMM, de Lucena DF, Vasconcelos SMM, de Sousa FCF, Carvalho AF, Macêdo DS. Prevention and reversal of ketamine-induced schizophrenia related behavior by minocycline in mice: Possible involvement of antioxidant and nitrergic pathways. J Psychopharmacol 2013; 27:1032-43. [PMID: 24045882 DOI: 10.1177/0269881113503506] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
It has been hypothesized that oxidative imbalance and alterations in nitrergic signaling play a role in the neurobiology of schizophrenia. Preliminary evidence suggests that adjunctive minocycline treatment is efficacious for cognitive and negative symptoms of schizophrenia. This study investigated the effects of minocycline in the prevention and reversal of ketamine-induced schizophrenia-like behaviors in mice. In the reversal protocol, animals received ketamine (20 mg/kg per day intraperitoneally or saline for 14 days, and minocycline (25 or 50 mg/kg daily), risperidone or vehicle treatment from days 8 to 14. In the prevention protocol, mice were pretreated with minocycline, risperidone or vehicle prior to ketamine. Behaviors related to positive (locomotor activity and prepulse inhibition of startle), negative (social interaction) and cognitive (Y maze) symptoms of schizophrenia were also assessed. Glutathione (GSH), thiobarbituric acid-reactive substances (TBARS) and nitrite levels were measured in the prefrontal cortex, hippocampus and striatum. Minocycline and risperidone prevented and reversed ketamine-induced alterations in behavioral paradigms, oxidative markers (i.e. ketamine-induced decrease and increase in GSH levels and TBARS content, respectively) as well as nitrite levels in the striatum. These data provide a rationale for evaluating minocycline as a novel psychotropic agent and suggest that its mechanism of action includes antioxidant and nitrergic systems.
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Affiliation(s)
- Aline Santos Monte
- 1Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Brazil
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Hou Y, Zhang H, Xie G, Cao X, Zhao Y, Liu Y, Mao Z, Yang J, Wu C. Neuronal injury, but not microglia activation, is associated with ketamine-induced experimental schizophrenic model in mice. Prog Neuropsychopharmacol Biol Psychiatry 2013; 45:107-16. [PMID: 23603358 DOI: 10.1016/j.pnpbp.2013.04.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 03/21/2013] [Accepted: 04/03/2013] [Indexed: 01/08/2023]
Abstract
Schizophrenia is a chronic debilitating psychiatric disorder affecting as many as 1% of the population worldwide. Unfortunately, its etiology and pathophysiology are poorly defined. Previous studies have shown that neuronal injury and microglia activation were observed in the schizophrenic patients. The present study aims to evaluate the role of neurons and microglia in ketamine-induced experimental schizophrenic model to further understand its pathophysiology. Firstly, ketamine was used to simulate the behavior abnormalities associated with schizophrenia. The effects of ketamine on mouse locomotor activity, Y-maze task, novel object recognition, and forced swimming test were studied. The results showed that ketamine (25, 50, and 100mg/kg i.p.) administered acutely or repeatedly (for 7 days) can increase the locomotor number significantly. In Y-maze task, ketamine (25, 50, and 100mg/kg) impaired spontaneous alternation after both acute and repeated treatments. In novel object recognition test, acute or chronic ketamine treatment showed no significant effect on mouse exploratory preference behavior. In forced swimming test, repeated treatment of ketamine (100mg/kg) enhanced the immobility duration. Secondly, immunohistochemical method was used to study the changes of neurons and microglia. The results showed that acute treatment of ketamine (100mg/kg) had no effect on neurons in the prefrontal cortex or hippocampus (1, 3, 5, and 7 days after the treatment). In contrast, repeated treatment of ketamine caused neuronal impairment in mouse hippocampus (3rd day, 5th day and 7th day after the final administration). The results of immunohistochemistry demonstrated that microglia in the prefrontal cortex and hippocampus were not affected after acute or repeated administration of ketamine. Finally, the neuronal impairment caused by repeated administration of ketamine was further investigated from the oxidative stress aspects. The results showed that repeated administration of ketamine increased nitric oxide (NO) and nitric oxide synthase (NOS) in prefrontal cortex, hippocampus and serum, while decreased SOD in hippocampus and serum. In summary, chronic ketamine treatment to mice successfully mimics the core behavioral deficits in schizophrenia. It is demonstrated for the first time that neuronal injury was associated with the chronic ketamine-induced experimental schizophrenic model, while microglial cells may play little role in this model. Oxidative stress may contribute to the significant neuronal injury in mouse brain induced by chronic ketamine treatment.
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Affiliation(s)
- Yue Hou
- Department of Pharmacology, Shenyang Pharmaceutical University, 110016 Shenyang, PR China
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Perinatal phencyclidine administration decreases the density of cortical interneurons and increases the expression of neuregulin-1. Psychopharmacology (Berl) 2013; 227:673-83. [PMID: 23380917 DOI: 10.1007/s00213-013-2999-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 01/16/2013] [Indexed: 12/22/2022]
Abstract
RATIONALE Perinatal phencyclidine (PCP) administration in rat blocks the N-methyl D-aspartate receptor (NMDAR) and causes symptoms reminiscent of schizophrenia in human. A growing body of evidence suggests that alterations in γ-aminobutyric acid (GABA) interneuron neurotransmission may be associated with schizophrenia. Neuregulin-1 (NRG-1) is a trophic factor important for neurodevelopment, synaptic plasticity, and wiring of GABA circuits. OBJECTIVES The aim of this study was to determine the long-term effects of perinatal PCP administration on the projection and local circuit neurons and NRG-1 expression in the cortex and hippocampus. METHODS Rats were treated on postnatal day 2 (P2), P6, P9, and P12 with either PCP (10 mg/kg) or saline. Morphological studies and determination of NRG-1 expression were performed at P70. RESULTS We demonstrate reduced densities of principal neurons in the CA3 and dentate gyrus (DG) subregions of the hippocampus and a reduction of major interneuronal populations in all cortical and hippocampal regions studied in PCP-treated rats compared with controls. For the first time, we show the reduced density of reelin- and somatostatin-positive cells in the cortex and hippocampus of animals perinatally treated with PCP. Furthermore, an increase in the numbers of perisomatic inhibitory terminals around the principal cells was observed in the motor cortex and DG. We also show that perinatal PCP administration leads to an increased NRG-1 expression in the cortex and hippocampus. CONCLUSION Taken together, our findings demonstrate that perinatal PCP administration increases NRG-1 expression and reduces the number of projecting and local circuit neurons, revealing complex consequences of NMDAR blockade.
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Ballesteros A, Jiang P, Summerfelt A, Du X, Chiappelli J, O’Donnell P, Kochunov P, Hong LE. No evidence of exogenous origin for the abnormal glutathione redox state in schizophrenia. Schizophr Res 2013; 146:184-9. [PMID: 23466187 PMCID: PMC3622807 DOI: 10.1016/j.schres.2013.02.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 02/04/2013] [Indexed: 11/29/2022]
Abstract
Schizophrenia has been associated with low glutathione (GSH), one of the most important substrates for natural defense against oxidative stress. This abnormality is often attributed to genetic or other pathological causes. However, low GSH in schizophrenia could also be due to insufficient antioxidant consumption or other exogenous factors. We evaluated GSH in relation to diet, smoking, and medication status in schizophrenia patients. We recruited 54 participants (29 schizophrenia patients and 25 normal controls). The Antioxidant Dietary Source Questions was used to estimate the total antioxidant capacity (TAC) from participants' diet. GSH and the oxidized form of glutathione (GSSG) were assayed. We found that GSH was significantly lower (p<0.001) while %GSSG was 2 to 5 fold higher (p = 0.023) in patients compared with controls. No evidence for lower TAC dietary intake was found in schizophrenia patients compared with controls; rather nominally higher TAC level was found in the patients diet (p = 0.02). Analysis of consumption of individual food categories also failed to find evidence of reduced dietary antioxidant intake in schizophrenia patients. Smoking and medications did not significantly predict the GSH deficit either. However, there was a significant smoking by diagnosis interaction on GSH (p = 0.026) such that smoking was associated with higher GSH level in controls while smoking in patients was not associated with this effect. Schizophrenia patients may have an impaired upregulation of GSH synthesis that normally occurs due to smoking-induced antioxidative response. Lower GSH was independently present in patients on clozapine (p = 0.005) and patients on other antipsychotics (p<0.001) compared with controls. In conclusion, none of the exogenous sources played a major role in explaining abnormalities in the glutathione pathway in patients. The state of abnormal glutathione redox may therefore be a part of schizophrenia pathophysiology.
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Affiliation(s)
- Alejandro Ballesteros
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA,Hospital Clínico de Salamanca, Department of Psychiatry. Calle de San Vicente, 182. 37007, Salamanca, Spain
| | - Pan Jiang
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA
| | - Ann Summerfelt
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA
| | - Xiaoming Du
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA
| | - Joshua Chiappelli
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA
| | - Patricio O’Donnell
- Department of Anatomy & Neurobiology and Psychiatry, University of Maryland School of Medicine. 685 West Baltimore Street, 21201, Baltimore, MD, USA
| | - Peter Kochunov
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA
| | - L. Elliot Hong
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine. 55 Wade Avenue, 21228, Catonsville, MD, USA,Address reprint requests to Dr. Hong, Maryland Psychiatric Research Center, P.O. Box 21247, Baltimore, MD 21228. Tel: 410 402 6828. Fax: 410 402 6023.
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Spencer JR, Darbyshire KME, Boucher AA, Kashem MA, Long LE, McGregor IS, Karl T, Arnold JC. Novel molecular changes induced by Nrg1 hypomorphism and Nrg1-cannabinoid interaction in adolescence: a hippocampal proteomic study in mice. Front Cell Neurosci 2013; 7:15. [PMID: 23447498 PMCID: PMC3581856 DOI: 10.3389/fncel.2013.00015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 02/06/2013] [Indexed: 02/01/2023] Open
Abstract
Neuregulin 1 (NRG1) is linked to an increased risk of developing schizophrenia and cannabis dependence. Mice that are hypomorphic for Nrg1 (Nrg1 HET mice) display schizophrenia-relevant behavioral phenotypes and aberrant expression of serotonin and glutamate receptors. Nrg1 HET mice also display idiosyncratic responses to the main psychoactive constituent of cannabis, Δ9-tetrahydrocannabinol (THC). To gain traction on the molecular pathways disrupted by Nrg1 hypomorphism and Nrg1-cannabinoid interactions we conducted a proteomic study. Adolescent wildtype (WT) and Nrg1 HET mice were exposed to repeated injections of vehicle or THC and their hippocampi were submitted to 2D gel proteomics. Comparison of WT and Nrg1 HET mice identified proteins linked to molecular changes in schizophrenia that have not been previously associated with Nrg1. These proteins are involved in vesicular release of neurotransmitters such as SNARE proteins; enzymes impacting serotonergic neurotransmission, and proteins affecting growth factor expression. Nrg1 HET mice treated with THC expressed a distinct protein expression signature compared to WT mice. Replicating prior findings, THC caused proteomic changes in WT mice suggestive of greater oxidative stress and neurodegeneration. We have previously observed that THC selectively increased hippocampal NMDA receptor binding of adolescent Nrg1 HET mice. Here we observed outcomes consistent with heightened NMDA-mediated glutamatergic neurotransmission. This included differential expression of proteins involved in NMDA receptor trafficking to the synaptic membrane; lipid raft stabilization of synaptic NMDA receptors; and homeostatic responses to dampen excitotoxicity. These findings uncover novel proteins altered in response to Nrg1 hypomorphism and Nrg1-cannabinoid interactions that improves our molecular understanding of Nrg1 signaling and Nrg1-mediated genetic vulnerability to the neurobehavioral effects of cannabinoids.
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Affiliation(s)
- Jarrah R Spencer
- Discipline of Pharmacology, University of Sydney Sydney, NSW, Australia ; Brain and Mind Research Institute, University of Sydney Sydney, NSW, Australia
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41
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Miljević Č, Nikolić-Kokić A, Nikolić M, Niketić V, Spasić MB, Lečić-Toševski D, Blagojević D. Effect of atypical antipsychotics on antioxidant enzyme activities in human erythrocytes (in vitro study). Hum Psychopharmacol 2013; 28:1-6. [PMID: 23124725 DOI: 10.1002/hup.2272] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 09/19/2012] [Accepted: 09/30/2012] [Indexed: 11/10/2022]
Abstract
OBJECTIVE This study was set out to examine the impact of atypical antipsychotic drugs: aripiprazole, clozapine, ziprasidone, olanzapine, quetiapine, sertindole and amisulpride on the activity of antioxidant defence enzymes in human erythrocytes in vitro. METHODS Cu,Zn-superoxide dismutase (SOD1), catalase (CAT), selenium-dependent glutathione peroxidase and glutathione reductase activities were determined after drugs incubation with blood of 15 apparently healthy non-smoking male volunteers (ages 23-39) for 1 h at 37 °C. RESULTS A statistically significant increase in SOD1 activity was found in samples incubated with aripiprazole (p < 0.01) and quetiapine (p < 0.05) compared with incubated control. SOD1 activity profile following native polyacrylamide gel electrophoresis indicates that aripiprazole and quetiapine protect enzyme activity from inhibition with hydrogen peroxide. Our results showed that sertindole decreases activity of CAT comparing with control non-treated erythrocytes. Moreover, in sertindole treated erythrocytes, negative correlation between SOD1 and glutathione peroxidase activities was found. Increased amount of hydrogen peroxide in such situation may leave erythrocytes and transform their role in circulation from anti-oxidative to pro-oxidative. CONCLUSIONS Our results indicate that mechanism through sertindole could express its in vivo toxic effects and point toward possible (neuro)protective effects of aripiprazole and quetiapine.
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Affiliation(s)
- Čedo Miljević
- Institute of Mental Health, School of Medicine, University of Belgrade, Belgrade, Serbia
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