1
|
Reynolds GP. The trace amine-associated receptor 1 agonists - non-dopaminergic antipsychotics or covert modulators of D2 receptors? J Psychopharmacol 2024:2698811241249415. [PMID: 38654553 DOI: 10.1177/02698811241249415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
A major effort of the pharmaceutical industry has been to identify and market drug treatments that are effective in ameliorating the symptoms of psychotic illness but without the limitations of the current treatments acting at dopamine D2 receptors. These limitations include the induction of a range of adverse effects, the inadequate treatment response of a substantial proportion of people with schizophrenia, and the generally poor response to negative and cognitive features of the disease. Recently introduced drug treatments have gone some way to avoiding the first of these, with a reduced propensity for weight gain, cardiovascular risk and extrapyramidal motor effects. Despite claims of some small improvements in negative symptoms, these drugs have not demonstrated substantial increases in efficacy. Of the drugs currently in development as antipsychotic agents, several are misleadingly described as having novel 'non-dopaminergic' mechanisms that may offer improvements in addressing the limitations of adverse effects and efficacy. It will be argued, using the trace amine-associated receptor 1 agonist as an example, that several of these new drugs still act primarily through modulation of dopaminergic neurotransmission and, in not addressing the primary pathology of schizophrenia, are therefore unlikely to have the much-needed improvements in efficacy required to address the unmet need associated with resistance to current treatments.
Collapse
Affiliation(s)
- Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
- Rotherham Doncaster and South Humber NHS Foundation Trust, Doncaster, UK
| |
Collapse
|
2
|
Hao K, Chen F, Xu S, Xiong Y, Xu R, Huang H, Shu C, Wang H, Wang G, Reynolds GP. The role of SIRT3 in mediating the cognitive deficits and neuroinflammatory changes associated with a developmental animal model of schizophrenia. Prog Neuropsychopharmacol Biol Psychiatry 2024; 130:110914. [PMID: 38122862 DOI: 10.1016/j.pnpbp.2023.110914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/30/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023]
Abstract
The neuroinflammatory state may contribute to the pathogenesis of many mental disorders including schizophrenia. Nicotinamide adenine dinucleotide (NAD+) is an essential cofactor for activation of proteins involved in mitochondria quality control, such as Sirtuin3 (SIRT3). Our previous study has found that NAD+ supplement could rescue early life stress (ELS)-induced neuroinflammation and down-regulation of SIRT3 in adult offspring. However, it is unclear whether SIRT3 is the key to the neuroprotective effects of NAD+ supplement in this animal model of schizophrenia. The present study used 24 h maternal separation (MS) as ELS to Wistar rat pups on the postnatal day (PND) 9. Schizophrenia-like behaviors and memory impairments were detected by behavioral tests. Microglial activation, pro-inflammatory cytokine expression, and NAD+/SIRT3 expression were detected in the prefrontal cortex and hippocampus. Meanwhile, NAM (a precursor of NAD+), and the SIRT3 activator Honokiol (HNK), and the SIRT3 inhibitor 3-TYP were used as an intervention in vivo. Our results showed that ELS could induce schizophrenia-like behaviors and M1 microglial activation, NAD+ decline, lower expression of SIRT3, and increased acetylated superoxide dismutase 2 expression at the adult stage. NAD+ supplement or HNK administration could block this process and normalize the behavioral alterations of the MS animals. 3-TYP administration in the control group and the NAM-treated MS rats caused M1 microglial activation and cognitive deficits. Our results demonstrated that SIRT3 mediated the stabilizing effect of NAD+ on normalizing M1 microglial activation and behavioral phenotypes in MS rats.
Collapse
Affiliation(s)
- Keke Hao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Fashuai Chen
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Shilin Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Ying Xiong
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Rui Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Huan Huang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Chang Shu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Huiling Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China.
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China; Hubei Institute of Neurology and Psychiatry Research, Wuhan 430060, China.
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, United Kingdom
| |
Collapse
|
3
|
Chen C, Khanthiyong B, Thaweetee-Sukjai B, Charoenlappanit S, Roytrakul S, Thanoi S, Reynolds GP, Nudmamud-Thanoi S. Proteomic association with age-dependent sex differences in Wisconsin Card Sorting Test performance in healthy Thai subjects. Sci Rep 2023; 13:20238. [PMID: 37981639 PMCID: PMC10658079 DOI: 10.1038/s41598-023-46750-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 11/04/2023] [Indexed: 11/21/2023] Open
Abstract
Sex differences in cognitive function exist, but they are not stable and undergo dynamic change during the lifespan. However, our understanding of how sex-related neural information transmission evolves with age is still in its infancy. This study utilized the Wisconsin Card Sorting Test (WCST) and the label-free proteomics method with bioinformatic analysis to investigate the molecular mechanisms underlying age-related sex differences in cognitive performance in 199 healthy Thai subjects (aged 20-70 years), as well as explore the sex-dependent protein complexes for predicting cognitive aging. The results showed that males outperformed females in two of the five WCST sub-scores: %Corrects and %Errors. Sex differences in these scores were related to aging, becoming noticeable in those over 60. At the molecular level, differently expressed individual proteins and protein complexes between both sexes are associated with the potential N-methyl-D-aspartate type glutamate receptor (NMDAR)-mediated excitotoxicity, with the NMDAR complex being enriched exclusively in elderly female samples. These findings provided a preliminary indication that healthy Thai females might be more susceptible to such neurotoxicity, as evidenced by their cognitive performance. NMDAR protein complex enrichment in serum could be proposed as a potential indication for predicting cognitive aging in healthy Thai females.
Collapse
Affiliation(s)
- Chen Chen
- Medical Science Graduate Program, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | | | | | - Sawanya Charoenlappanit
- National Centre for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sittiruk Roytrakul
- National Centre for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Samur Thanoi
- School of Medical Sciences, University of Phayao, Phayao, Thailand.
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Sutisa Nudmamud-Thanoi
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.
| |
Collapse
|
4
|
Taylor D, Chithiramohan R, Grewal J, Gupta A, Hansen L, Reynolds GP, Pappa S. Dopamine partial agonists: a discrete class of antipsychotics. Int J Psychiatry Clin Pract 2023; 27:272-284. [PMID: 36495086 DOI: 10.1080/13651501.2022.2151473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 12/14/2022]
Abstract
Worldwide, there are now three marketed dopamine D2 partial agonists: aripiprazole, brexpiprazole and cariprazine. These three drugs share a number of properties other than their action at D2 receptors. Pharmacologically, they are 5HT2 antagonists and D3 and 5HT1A partial agonists but with little or no alpha-adrenergic, anticholinergic or antihistaminic activity. They also share a long duration of action. Clinically, D2 partial agonists are effective antipsychotics and generally have useful antimanic and antidepressant activity. They are usually well tolerated, causing akathisia and insomnia only at the start of treatment, and are non-sedating. These drugs also share a very low risk of increased prolactin and of weight gain and accompanying metabolic effects. They may also have a relatively low risk of tardive dyskinesia. There is some evidence that they are preferred by patients to dopamine antagonists. Individual dopamineD2 partial agonists have much in common and as a group they differ importantly from dopamine D2 antagonists. Dopamine D2 partial agonists should be considered a distinct class of antipsychotics.Key pointsD2 partial agonists share many pharmacological and clinical propertiesD2 partial agonists differ in several important respects from D2 antagonistsD2 partial agonists should be considered a discrete class of antipsychotics.
Collapse
Affiliation(s)
- David Taylor
- Institute of Pharmaceutical Science, King's College London, London, UK
- Pharmacy Department, South London and Maudsley NHS Foundation Trust, London, UK
| | | | | | - Avirup Gupta
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Lars Hansen
- Southampton University, Hartley Library B12, Southampton, UK
- Southern Health NHS Foundation Trust, Southampton, UK
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Sofia Pappa
- Department of Brain Sciences, Imperial College London, London, UK
- West London NHS Trust, London, UK
| |
Collapse
|
5
|
Chen C, Khanthiyong B, Charoenlappanit S, Roytrakul S, Reynolds GP, Thanoi S, Nudmamud-Thanoi S. Cholinergic-estrogen interaction is associated with the effect of education on attenuating cognitive sex differences in a Thai healthy population. PLoS One 2023; 18:e0278080. [PMID: 37471329 PMCID: PMC10358962 DOI: 10.1371/journal.pone.0278080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 05/30/2023] [Indexed: 07/22/2023] Open
Abstract
The development of human brain is shaped by both genetic and environmental factors. Sex differences in cognitive function have been found in humans as a result of sexual dimorphism in neural information transmission. Numerous studies have reported the positive effects of education on cognitive functions. However, little work has investigated the effect of education on attenuating cognitive sex differences and the neural mechanisms behind it based on healthy population. In this study, the Wisconsin Card Sorting Test (WCST) was employed to examine sex differences in cognitive function in 135 Thai healthy subjects, and label-free quantitative proteomic method and bioinformatic analysis were used to study sex-specific neurotransmission-related protein expression profiles. The results showed sex differences in two WCST sub-scores: percentage of Total corrects and Total errors in the primary education group (Bayes factor>100) with males performed better, while such differences eliminated in secondary and tertiary education levels. Moreover, 11 differentially expressed proteins (DEPs) between men and women (FDR<0.1) were presented in both education groups, with majority of them upregulated in females. Half of those DEPs interacted directly with nAChR3, whereas the other DEPs were indirectly connected to the cholinergic pathways through interaction with estrogen. These findings provided a preliminary indication that a cholinergic-estrogen interaction relates to, and might underpin, the effect of education on attenuating cognitive sex differences in a Thai healthy population.
Collapse
Affiliation(s)
- Chen Chen
- Medical Science Graduate Program, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | | | - Sawanya Charoenlappanit
- Functional Proteomics Technology Laboratory, National Centre for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sittiruk Roytrakul
- Functional Proteomics Technology Laboratory, National Centre for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Gavin P. Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, United Kingdom
| | - Samur Thanoi
- School of Medical Sciences, University of Phayao, Mae Ka, Phayao, Thailand
| | - Sutisa Nudmamud-Thanoi
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| |
Collapse
|
6
|
Loureiro CM, Corsi-Zuelli F, Fachim HA, Shuhama R, de Oliveira AM, Menezes PR, Dalton CF, Louzada-Junior P, Belangero SI, Coeli-Lacchini F, Reynolds GP, Lacchini R, Del-Ben CM. Lifetime cannabis use and childhood trauma associated with CNR1 genetic variants increase the risk of psychosis: findings from the STREAM study. Braz J Psychiatry 2023; 45:226-235. [PMID: 36918037 PMCID: PMC10288472 DOI: 10.47626/1516-4446-2022-2882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 02/03/2023] [Indexed: 03/06/2023]
Abstract
OBJECTIVES Gene-environment interactions increase the risk of psychosis. The objective of this study was to investigate gene-gene and gene-environment interactions in psychosis, including single nucleotide variants (SNVs) of dopamine-2 receptor (D2R), N-methyl-d-aspartate receptor (NMDAR), and cannabinoid receptor type 1 (CB1R), lifetime cannabis use, and childhood trauma. METHODS Twenty-three SNVs of genes encoding D2R (DRD2: rs1799978, rs7131056, rs6275), NMDAR (GRIN1: rs4880213, rs11146020; GRIN2A: rs1420040, rs11866328; GRIN2B: rs890, rs2098469, rs7298664), and CB1R (CNR1: rs806380, rs806379, rs1049353, rs6454674, rs1535255, rs2023239, rs12720071, rs6928499, rs806374, rs7766029, rs806378, rs10485170, rs9450898) were genotyped in 143 first-episode psychosis patients (FEPp) and 286 community-based controls by Illumina HumanCoreExome-24 BeadChip. Gene-gene and gene-environment associations were assessed using nonparametric Multifactor Dimensionality Reduction software. RESULTS Single-locus analyses among the 23 SNVs for psychosis and gene-gene interactions were not significant (p > 0.05 for all comparisons); however, both environmental risk factors showed an association with psychosis (p < 0.001). Moreover, gene-environment interactions were significant for an SNV in CNR1 and cannabis use. The best-performing model was the combination of CNR1 rs12720071 and lifetime cannabis use (p < 0.001), suggesting an increased risk of psychosis. CONCLUSION Our study supports the hypothesis of gene-environment interactions for psychosis involving T-allele carriers of CNR1 SNVs, childhood trauma, and cannabis use.
Collapse
Affiliation(s)
- Camila Marcelino Loureiro
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
- Centro de Pesquisas em Saúde Mental da População, São Paulo, SP, Brazil
| | - Fabiana Corsi-Zuelli
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | | | - Rosana Shuhama
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
- Centro de Pesquisas em Saúde Mental da População, São Paulo, SP, Brazil
| | | | - Paulo Rossi Menezes
- Centro de Pesquisas em Saúde Mental da População, São Paulo, SP, Brazil
- Faculdade de Medicina, USP, São Paulo, SP, Brazil
| | | | - Paulo Louzada-Junior
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | | | | | | | - Riccardo Lacchini
- Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil
| | - Cristina Marta Del-Ben
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
- Centro de Pesquisas em Saúde Mental da População, São Paulo, SP, Brazil
| |
Collapse
|
7
|
Reynolds GP. Comment on Tabatabaei Dakhili et al. The Antipsychotic Dopamine 2 Receptor Antagonist Diphenylbutylpiperidines Improve Glycemia in Experimental Obesity by Inhibiting Succinyl-CoA:3-Ketoacid CoA Transferase. Diabetes 2023;72:126-134. Diabetes 2023; 72:e5. [PMID: 37146278 DOI: 10.2337/db23-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 05/07/2023]
|
8
|
Liu H, Reynolds GP, Wei X. The Influence of Agricultural Work and Plasma Uric Acid on Hospital Admission for Alzheimer's Disease. J Alzheimers Dis 2023; 92:1283-1287. [PMID: 36872782 DOI: 10.3233/jad-221226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
BACKGROUND Exposure to environmental neurotoxins associated with agricultural work, such as pesticides, may be a risk factor for neurodegenerative disorders such as Alzheimer's (AD) and Parkinson's (PD) diseases. There is strong evidence that such exposure is associated with the development of PD; for AD the current evidence is equivocal. Several mechanisms are proposed to mediate this environmental toxicity, one of which is oxidative stress. Uric acid (UA) is an endogenous antioxidant, low levels of which are also implicated in neurodegenerative disease. OBJECTIVE This study aimed to determine whether agricultural work was a risk factor for AD in a population in which its association with PD was established, and whether UA was also associated with AD in this cohort. METHODS Hospital records of subjects meeting criteria for AD (n = 128) or vascular dementia (VaD) (n = 178) after hospital admission for symptoms of dementia were studied. History of agricultural work and plasma UA were recorded and their relationship to diagnosis determined. RESULTS In contrast to previous findings in this population in which agricultural work was strongly associated with PD, a history of agricultural work was not over-represented in hospital admission for AD versus VaD. AD was associated with a reduced level of circulating UA compared with VaD. CONCLUSION Agricultural work as a likely proxy for exposure to pesticides appears not to be a risk factor for AD to the extent found in PD, perhaps reflecting their differences in neuronal pathology. Nevertheless, findings with UA suggests that oxidative stress may be an important factor in AD pathogenesis.
Collapse
Affiliation(s)
- Hanxiang Liu
- Department of Neurology, Puer People's Hospital, Puer, Yunnan, China
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Xianwen Wei
- Department of Neurology, Puer People's Hospital, Puer, Yunnan, China
| |
Collapse
|
9
|
Tang H, Sun Y, Fachim HA, Cheung TKD, Reynolds GP, Harte MK. Elevated Expression of Two Pore Potassium Channel THIK-1 in Alzheimer's Disease: An Inflammatory Mechanism. J Alzheimers Dis 2023; 95:1757-1769. [PMID: 37718820 DOI: 10.3233/jad-230616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
INTRODUCTION Tandem pore domain halothane-inhibited K+ channel 1 (THIK-1, coded by KCNK13) provides an upstream regulation of the activation of the NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasome, which has been suggested as one of the key mechanisms of the pathological process in neurodegeneration mainly from in vitro and in vivo model systems studies. However, unequivocal evidence from neurodegenerative disorders has been lacking. OBJECTIVE To investigate the involvement of the THIK-1/NLRP3 pathway in the pathological process of Alzheimer's disease (AD) and Parkinson's disease (PD). METHODS This study investigated gene expression of markers in the THIK-1/NLRP3 pathway in an animal model representing AD as well as in human postmortem brains of AD and PD by quantitative real-time PCR. THIK-1 protein expression was determined using automated capillary electrophoresis immunoblotting. Furthermore, DNA methylation of KCNK13 was analysed in AD cohort by pyrosequencing. RESULTS A substantial upregulation of KCNK13, glial activation markers, NLRP3 inflammasome components, and IL1B was observed in the animal study. Increased expression of KCNK13 support an inflammatory glial cell activation in both advanced AD and PD. The increase in KCNK13 expression was also supported by downregulation in DNA methylation of KCNK13 in AD. CONCLUSIONS The association between THIK-1 K+ channels expression and pathology changes indicates a THIK-1-induced activation of this glial subtype in AD and PD. Therefore, specific blocks of the microglial THIK-1 K+ channels at the early stage of AD and PD may be beneficial for the patients.
Collapse
Affiliation(s)
- Hao Tang
- Department of Neurology, The First People's Hospital of Yunnan Province, Kunming, China
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Yuhong Sun
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Helene A Fachim
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | | | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Michael K Harte
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| |
Collapse
|
10
|
Hao K, Wang H, Zhang Y, Xie X, Huang H, Chen C, Xu S, Xu R, Shu C, Liu Z, Zhou Y, Reynolds GP, Wang G. Nicotinamide reverses deficits in puberty-born neurons and cognitive function after maternal separation. J Neuroinflammation 2022; 19:232. [PMID: 36131290 PMCID: PMC9494869 DOI: 10.1186/s12974-022-02591-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 09/04/2022] [Indexed: 01/09/2023] Open
Abstract
Background Early life stress (ELS) is associated with the development of schizophrenia later in life. The hippocampus develops significantly during childhood and is extremely reactive to stress. In rodent models, ELS can induce neuroinflammation, hippocampal neuronal loss, and schizophrenia-like behavior. While nicotinamide (NAM) can inhibit microglial inflammation, it is unknown whether NAM treatment during adolescence reduces hippocampal neuronal loss and abnormal behaviors induced by ELS. Methods Twenty-four hours of maternal separation (MS) of Wistar rat pups on post-natal day (PND)9 was used as an ELS. On PND35, animals received a single intraperitoneal injection of BrdU to label dividing neurons and were given NAM from PND35 to PND65. Behavioral testing was performed. Western blotting and immunofluorescence staining were used to detect nicotinamide adenine dinucleotide (NAD+)/Sirtuin3 (Sirt3)/superoxide dismutase 2 (SOD2) pathway-related proteins. Results Compared with controls, only MS animals in the adult stage (PND56–65) but not the adolescent stage (PND31–40) exhibited pre-pulse inhibition deficits and cognitive impairments mimicking schizophrenia symptoms. MS decreased the survival and activity of puberty-born neurons and hippocampal NAD+ and Sirt3 expression in adulthood. These observations were related to an increase in acetylated SOD2, microglial activation, and significant increases in pro-inflammatory IL-1β, TNF-α, and IL-6 expression. All the effects of MS at PND9 were reversed by administering NAM in adolescence (PND35–65). Conclusions MS may lead to schizophrenia-like phenotypes and persistent hippocampal abnormalities. NAM may be a safe and effective treatment in adolescence to restore normal hippocampal function and prevent or ameliorate schizophrenia-like behavior. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-022-02591-y.
Collapse
Affiliation(s)
- Keke Hao
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Huiling Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China. .,Department of Psychiatry, Zhongxiang Hospital of Renmin Hospital of Wuhan University, Zhongxiang, 431900, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
| | - Yuejin Zhang
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430060, China
| | - Xinhui Xie
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Huan Huang
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Cheng Chen
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Shilin Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Rui Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Chang Shu
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Zhongchun Liu
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Yuan Zhou
- Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, China. .,Hubei Institute of Neurology and Psychiatry Research, Wuhan, 430060, China.
| |
Collapse
|
11
|
Loureiro CM, Fachim HA, Harte MK, Dalton CF, Reynolds GP. Subchronic PCP effects on DNA methylation and protein expression of NMDA receptor subunit genes in the prefrontal cortex and hippocampus of female rats. J Psychopharmacol 2022; 36:238-244. [PMID: 35102781 DOI: 10.1177/02698811211069109] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND N-methyl-d-aspartate receptor (NMDAR) dysfunction is implicated in schizophrenia, and NMDAR antagonists, such as phencyclidine (PCP), can induce behaviours that mimic aspects of the disorder. AIMS We investigated DNA methylation of Grin1, Grin2a and Grin2b promoter region and NR1 and NR2 protein expression in the prefrontal cortex (PFC) and hippocampus of adult female Lister-hooded rats following subchronic PCP (scPCP) administration. We also determined whether any alterations were tissue-specific. METHODS Rats were divided into two groups that received vehicle (0.9% saline) or 2 mg/kg PCP twice a day for 7 days (n = 10 per group). After behavioural testing (novel object recognition), to confirm a cognitive deficit, brains were dissected and NMDAR subunit DNA methylation and protein expression were analysed by pyrosequencing and ELISA. Line-1 methylation was determined as a measure of global methylation. Data were analysed using Student's t-test and Pearson correlation. RESULTS The scPCP administration led to Grin1 and Grin2b hypermethylation and reduction in NR1 protein in both PFC and hippocampus. No significant differences were observed in Line-1 or Grin2a methylation and NR2 protein. CONCLUSIONS The scPCP treatment resulted in increased DNA methylation at promoter sites of Grin1 and Grin2b NMDAR subunits in two brain areas implicated in schizophrenia, independent of any global change in DNA methylation, and are similar to our observations in a neurodevelopmental animal model of schizophrenia - social isolation rearing post-weaning. Moreover, these alterations may contribute to the changes in protein expression for NMDAR subunits demonstrating the potential importance of epigenetic mechanisms in schizophrenia.
Collapse
Affiliation(s)
- Camila M Loureiro
- Department of Internal Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Helene A Fachim
- Department of Endocrinology and Metabolism, Salford Royal Foundation Trust, Salford, UK
| | - Michael K Harte
- Division of Pharmacy & Optometry, University of Manchester, Manchester, UK
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| |
Collapse
|
12
|
Abstract
Guidelines for the treatment of schizophrenia limit the use of antipsychotic agents to clinically-established maximum doses. This acknowledges both the absence of additional efficacy of dopamine D2 receptor antagonists above a receptor occupancy threshold, and the increases in side effects that can occur at higher doses. These limits restrict the dosing of combinations of antipsychotics as they do single agents; drugs sharing the major antipsychotic mechanism of D2 receptor antagonism will act additively in blocking these receptors.Several newer antipsychotic drugs, including aripiprazole and cariprazine, act as partial agonists at the D2 receptor site and avoid action at several other receptors, effects at which are responsible for some non-dopaminergic adverse effects. This pharmacology imparts different characteristics to the drugs resulting often in a more favourable side effect profile. Their partial agonism, along with high affinities for the D2 receptor, also means that these drugs given adjunctively may in part replace, rather than enhance, the D2 antagonism of other antipsychotic agents. This can result in an improvement in certain side effects without loss of antipsychotic efficacy.This article makes the case for distinguishing the D2 partial agonists from antagonists in defining maximum doses of combined treatments, which would increase the options available to the prescriber, emphasising that pharmacological mechanisms need to be understood in identifying optimal treatments for psychotic illness.
Collapse
Affiliation(s)
- Gavin P Reynolds
- Gavin P Reynolds, Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom.
| |
Collapse
|
13
|
Reynolds GP. The Etiology of Metabolic Disturbances in Schizophrenia: Drugs, Genes, and Environment. Int J Neuropsychopharmacol 2021; 24:854-855. [PMID: 34252192 PMCID: PMC8538903 DOI: 10.1093/ijnp/pyab047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/10/2021] [Indexed: 12/29/2022] Open
Affiliation(s)
- Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield, UK,Correspondence: Gavin P. Reynolds, PhD, Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK ()
| |
Collapse
|
14
|
Iamjan SA, Thanoi S, Watiktinkorn P, Fachim H, Dalton CF, Nudmamud-Thanoi S, Reynolds GP. Changes of BDNF exon IV DNA methylation are associated with methamphetamine dependence. Epigenomics 2021; 13:953-965. [PMID: 34008409 DOI: 10.2217/epi-2020-0463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Aim: We investigated DNA methylation of BDNF in methamphetamine (METH) dependence in humans and an animal model. Materials & methods: BDNF methylation at exon IV was determined by pyrosequencing of blood DNA from METH-dependent and control subjects, and from rat brain following an escalating dose of METH or vehicle. Bdnf expression was determined in rat brain. Results: BDNF methylation was increased in human METH dependence, greatest in subjects with psychosis and in prefrontal cortex of METH-administered rats; rat hippocampus showed reduced Bdnf methylation and increased gene expression. Conclusion: BDNF methylation is abnormal in human METH dependence, especially METH-dependent psychosis, and in METH-administered rats. This may influence BDNF expression and contribute to the neurotoxic effects of METH exposure.
Collapse
Affiliation(s)
- Sri-Arun Iamjan
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok 65000, Thailand.,Department of Biomedical Sciences, Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand
| | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok 65000, Thailand
| | | | - Helene Fachim
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK.,Department of Endocrinology and Metabolism, Salford Royal NHS Foundation Trust, Salford M6 8HD, UK
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok 65000, Thailand
| | - Gavin P Reynolds
- Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok 65000, Thailand.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK
| |
Collapse
|
15
|
Loureiro CM, Fachim HA, Corsi-Zuelli F, Shuhama R, Menezes PR, Dalton CF, Del-Ben CM, Reynolds GP, Louzada-Junior P. The relationship of childhood trauma and DNA methylation of NMDA receptor genes in first-episode schizophrenia. Epigenomics 2021; 13:927-937. [PMID: 33942662 DOI: 10.2217/epi-2020-0451] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: We investigated GRIN1, GRIN2A, GRIN2B and LINE-1 DNA methylation in first-episode schizophrenia patients, their nonaffected siblings and age- and sex-matched controls testing for associations between DNA methylation and exposition to childhood trauma. Materials & methods: The Childhood Trauma Questionnaire evaluated the history of childhood trauma. Genomic DNA was bisulfite converted and pyrosequencing was employed to quantify DNA methylation. Results: GRIN2A, GRIN2B and LINE-1 DNA methylation was not associated with childhood trauma in patients, siblings and controls. Siblings with childhood trauma had hypermethylation at CpG1 of GRIN1 compared with siblings without trauma. Conclusion: Childhood trauma may influence GRIN1 methylation in subjects with liability to psychosis, but not in frank schizophrenia or controls.
Collapse
Affiliation(s)
- Camila M Loureiro
- Department of Internal Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, 14049 9002, Brazil.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB3, UK.,Center for Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, 14049 9004, Brazil.,Population Mental Health Center - NAP-SaMP, University of São Paulo, 01246 9035, Brazil
| | - Helene A Fachim
- Department of Endocrinology & Metabolism, Salford Royal Foundation Trust, Salford, M6 8HD6, UK
| | - Fabiana Corsi-Zuelli
- Center for Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, 14049 9004, Brazil.,Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, 14049 9007, Brazil
| | - Rosana Shuhama
- Population Mental Health Center - NAP-SaMP, University of São Paulo, 01246 9035, Brazil.,Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, 14049 9007, Brazil
| | - Paulo R Menezes
- Population Mental Health Center - NAP-SaMP, University of São Paulo, 01246 9035, Brazil.,Department of Preventive Medicine, Faculty of Medicine, University of São Paulo, 01246 9035, Brazil
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB3, UK
| | - Cristina M Del-Ben
- Population Mental Health Center - NAP-SaMP, University of São Paulo, 01246 9035, Brazil.,Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, 14049 9007, Brazil
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB3, UK
| | - Paulo Louzada-Junior
- Department of Internal Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, 14049 9002, Brazil.,Center for Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, 14049 9004, Brazil
| |
Collapse
|
16
|
Affiliation(s)
- Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, UK
| |
Collapse
|
17
|
Affiliation(s)
- Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, United Kingdom,Correspondence: Professor G. P. Reynolds, PhD, Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 0WB UK ()
| | | |
Collapse
|
18
|
Abstract
We analysed if levels of four miRNAs would change after a lifestyle intervention involving dietary and exercises in prediabetes. MiRNAs previously shown to be associated with diabetes (Let-7a, Let-7e, miR-144 and miR-92a) were extracted from serum pre- and post-intervention. mRNA was extracted from fat-tissue for gene expression analyses. The intervention resulted in increased Let-7a and miR-92a. We found correlations between miRNAs and clinical variables (triglycerides, cholesterol, insulin, weight and BMI). We also found correlations between miRNAs and target genes, revealing a link between miR-92a and IGF system. A lifestyle intervention resulted in marked changes in miRNAs. The association of miRNAs with insulin and the IGF system (both receptors and binding proteins) may represent a mechanism of regulating IGFs metabolic actions.
Collapse
Affiliation(s)
- Helene A. Fachim
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Camila M. Loureiro
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Kirk Siddals
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Gavin P. Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - J. Martin Gibson
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Zhen Bouman Chen
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, Duarte, CA, USA
| | - Adrian H. Heald
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| |
Collapse
|
19
|
Loureiro CM, Fachim HA, Corsi-Zuelli F, Shuhama R, Joca S, Menezes PR, Dalton CF, Del-Ben CM, Louzada-Junior P, Reynolds GP. Epigenetic-mediated N-methyl-D-aspartate receptor changes in the brain of isolated reared rats. Epigenomics 2020; 12:1983-1997. [PMID: 33242253 DOI: 10.2217/epi-2020-0151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: We investigated: Grin1, Grin2a, Grin2b DNA methylation; NR1 and NR2 mRNA/protein in the prefrontal cortex (PFC); and hippocampus of male Wistar rats exposed to isolation rearing. Materials & methods: Animals were kept isolated or grouped (n = 10/group) from weaning for 10 weeks. Tissues were dissected for RNA/DNA extraction and N-methyl-D-aspartate receptor subunits were analyzed using quantitative reverse transcription (RT)-PCR, ELISA and pyrosequencing. Results: Isolated-reared animals had: decreased mRNA in PFC for all markers, increased NR1 protein in hippocampus and hypermethylation of Grin1 in PFC and Grin2b in hippocampus, compared with grouped rats. Associations between mRNA/protein and DNA methylation were found for both brain areas. Conclusion: This study indicates that epigenetic DNA methylation may underlie N-methyl-D-aspartate receptor mRNA/protein expression alterations caused by isolation rearing.
Collapse
Affiliation(s)
- Camila Marcelino Loureiro
- Department of Internal Medicine, Division of Clinical Immunology. Ribeirão Preto Medical School, University of São Paulo, Brazil.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Helene Aparecida Fachim
- Department of Endocrinology & Metabolism, Salford Royal Foundation Trust, Salford, UK.,Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Fabiana Corsi-Zuelli
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Rosana Shuhama
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Sâmia Joca
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil.,Aarhus Institute of Advanced Studies (AIAS), Aarhus University, Denmark
| | - Paulo Rossi Menezes
- Department of Preventive Medicine, Faculty of Medicine, University of São Paulo, Brazil
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Cristina Marta Del-Ben
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Paulo Louzada-Junior
- Department of Internal Medicine, Division of Clinical Immunology. Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| |
Collapse
|
20
|
Pennington K, Klaus K, Fachim HA, Butler K, Trischel K, Dalton CF, Heald A, Reynolds GP. CACNA1C methylation: association with cortisol, perceived stress, rs1006737 and childhood trauma in males. Epigenomics 2020; 12:1739-1749. [PMID: 33169621 DOI: 10.2217/epi-2020-0034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: We investigated morning cortisol, stress, rs1006737 and childhood trauma relationship with CACNA1C methylation. Materials & methods: Morning cortisol release, childhood trauma and perceived stress were collected and genotyping for rs1006737 conducted in 103 adult males. Genomic DNA extracted from saliva was bisulphite converted and using pyrosequencing methylation determined at 11 CpG sites within intron 3 of CACNA1C. Results: A significant negative correlation between waking cortisol and overall mean methylation was found and a positive correlation between CpG5 methylation and perceived stress. Conclusion: CACNA1C methylation levels may be related to cortisol release and stress perception. Future work should evaluate the influence of altered CACNA1C methylation on stress reactivity to investigate this as a potential mechanism for mental health vulnerability.
Collapse
Affiliation(s)
| | - Kristel Klaus
- School of Psychology, University of Lincoln, Lincoln, UK.,Medical Research Council Cognition & Brain Sciences Unit, University of Cambridge, Cambridge, UK
| | - Helene A Fachim
- Department of Diabetes & Endocrinology, Salford Royal NHS Foundation Trust, Salford, UK
| | - Kevin Butler
- School of Psychology, University of Lincoln, Lincoln, UK.,Translational Addiction Research Laboratory, Centre for Addiction & Mental Health, Toronto, ON, Canada
| | | | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Adrian Heald
- Department of Diabetes & Endocrinology, Salford Royal NHS Foundation Trust, Salford, UK.,The School of Medicine & Manchester Health Sciences Centre, University of Manchester, Manchester, UK
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| |
Collapse
|
21
|
Zhang Y, Wang Q, Reynolds GP, Yue W, Deng W, Yan H, Tan L, Wang C, Yang G, Lu T, Wang L, Zhang F, Yang J, Li K, Lv L, Tan Q, Li Y, Yu H, Zhang H, Ma X, Yang F, Li L, Chen Q, Wei W, Zhao L, Wang H, Li X, Guo W, Hu X, Tian Y, Ren H, Ma X, Coid J, Zhang D, Li T. Metabolic Effects of 7 Antipsychotics on Patients With Schizophrenia: A Short-Term, Randomized, Open-Label, Multicenter, Pharmacologic Trial. J Clin Psychiatry 2020; 81. [PMID: 32237292 DOI: 10.4088/jcp.19m12785] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 10/16/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To compare longitudinal metabolic effects of 7 antipsychotics, including body mass index (BMI), waist circumference (WC), blood pressure (BP), glucose, triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C); to investigate risk factors for metabolic syndrome (MetS); and to make recommendations on frequency and timing of monitoring metabolic measurements. METHODS This randomized, open-label, pharmacologic trial was conducted among patients with schizophrenia (DSM-IV) in 32 hospitals across China. Patients were randomly assigned to 7 groups and assessed at baseline, 2, 4, and 6 weeks. Linear mixed-effect models were used to assess changes of metabolic measures over time. Multivariable logistic regression analysis was performed to investigate the risk factors for MetS. RESULTS In total, 2,550 (718 drug-naïve) of 2,774 patients finished the study between July 6, 2010, and November 30, 2011. We found significant (P < .05) changes for BMI, WC, TG, and LDL-C, with TG and LDL-C reaching a plateau. Interactions between baseline metabolic condition and changes over time were observed for BMI (χ² = 43.11, P < .001), WC (χ² = 36.34, P < .001), systolic BP (χ² = 11.92, P = .002), glucose (χ² = 6.09, P = .01), and TG (χ² = 6.01, P = .01). Antipsychotics generally had greater adverse effects on patients who were initially screened as metabolically normal. After controlling for other associated factors, we found that antipsychotics resulted in differing risk for incident MetS, with a similar pattern to findings in other populations: olanzapine (odds ratio [OR] = 3.36, P < .001) > quetiapine (OR = 3.29, P < .001) > perphenazine (OR = 2.73, P = .007) > risperidone (OR = 2.21, P = .02) > aripiprazole (OR = 1.74, P = .15) ≈ haloperidol (OR = 1.75, P = .22) ≈ ziprasidone (OR = 1, reference). CONCLUSIONS Metabolic traits should be monitored frequently in early stages of antipsychotic treatment due to rapid and substantial changes. Clinicians should not assume low risk for patients with normal metabolic parameters at baseline. TRIAL REGISTRATION Chinese Clinical Trial Registry identifier: ChiCTR-TRC-10000934.
Collapse
Affiliation(s)
- Yamin Zhang
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Qiang Wang
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Gavin P Reynolds
- Biomolecular Science Research Centre, Sheffield Hallam University, Sheffield, United Kingdom
| | - Weihua Yue
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Wei Deng
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hao Yan
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Liwen Tan
- Second Xiangya Hospital, Central South University, Hunan, China
| | - Chuanyue Wang
- Beijing Anding Hospital, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | | | - Tianlan Lu
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Lifang Wang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Fuquan Zhang
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, Jiangshu, China
| | - Jianli Yang
- Institute of Mental Health, Tianjin Anding Hospital, Tianjin, China.,Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
| | - Keqing Li
- Hebei Mental Health Center, Baoding, Hebei, China
| | - Luxian Lv
- Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Qingrong Tan
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, Shanxi, China
| | - Yinfei Li
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hua Yu
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hongyan Zhang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Xin Ma
- Beijing Anding Hospital, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Fude Yang
- Beijing HuiLongGuan Hospital, Beijing, China
| | - Lingjiang Li
- Second Xiangya Hospital, Central South University, Hunan, China
| | - Qi Chen
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wei Wei
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Liansheng Zhao
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | | | - Xiaojing Li
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Wanjun Guo
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xun Hu
- Huaxi Biobank, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yang Tian
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hongyan Ren
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xiaohong Ma
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jeremy Coid
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Dai Zhang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China.,National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Tao Li
- #28 Dianxin South St, Chengdu 610041, Sichuan, China. .,Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | | |
Collapse
|
22
|
Liu H, Reynolds GP, Wei X. Uric Acid and High-Density Lipoprotein Cholesterol Are Differently Associated with Alzheimer’s Disease and Vascular Dementia. J Alzheimers Dis 2020; 73:1125-1131. [PMID: 31884488 DOI: 10.3233/jad-191111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hanxiang Liu
- Department of Neurology, Puer People’s Hospital, Puer, Yunnan, China
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Gavin P. Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Xianwen Wei
- Department of Neurology, Puer People’s Hospital, Puer, Yunnan, China
| |
Collapse
|
23
|
Liu H, Wei X, Yang W, Reynolds GP. Agricultural work and reduced circulating uric acid are both associated with initial hospital admission for Parkinson's disease. J Neural Transm (Vienna) 2019; 127:779-783. [PMID: 31836905 PMCID: PMC7242276 DOI: 10.1007/s00702-019-02119-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/08/2019] [Indexed: 11/29/2022]
Abstract
Monoamine oxidase type B inhibitors act in Parkinson's disease (PD) via potentiation of dopamine, but may also have neuroprotective effects by reducing oxidative damage. Oxidative damage is also a feature of environmental toxins, including pesticides, that are an established risk factor for PD. Another risk factor is low circulating uric acid (UA), which may relate to UA being the major endogenous antioxidant in the human body. We have undertaken a study of 192 initial admissions for PD in a general hospital neurology department in a partly rural region of Southern China to determine if there is an increased rate of PD in agricultural workers who have a high risk of exposure to pesticides, and how it may relate to deficits in UA. We found a disproportionately high number of agricultural workers admitted with PD (66.7% vs. 54.3% of all neurology admissions) and that PD subjects have a substantial reduction in UA. This is further reduced in agricultural workers and thus may contribute to the increased vulnerability of this group to PD.
Collapse
Affiliation(s)
- Hanxiang Liu
- Department of Neurology, Puer People's Hospital, Puer, Yunnan, China.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK
| | - Xianwen Wei
- Department of Neurology, Puer People's Hospital, Puer, Yunnan, China
| | - Wen Yang
- Department of Neurology, Puer People's Hospital, Puer, Yunnan, China
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
| |
Collapse
|
24
|
Zhao L, Wang H, Zhang Y, Wei J, Ni P, Ren H, Li G, Wang Q, Reynolds GP, Yue W, Deng W, Yan H, Tan L, Chen Q, Yang G, Lu T, Wang L, Zhang F, Yang J, Li K, Lv L, Tan Q, Li Y, Yu H, Zhang H, Ma X, Yang F, Li L, Wang C, Wang H, Li X, Guo W, Hu X, Tian Y, Ma X, Coid J, Zhang D, Chen C, Li T. Interaction Between Variations in Dopamine D2 and Serotonin 2A Receptor is Associated with Short-Term Response to Antipsychotics in Schizophrenia. Neurosci Bull 2019; 35:1102-1105. [PMID: 31571100 DOI: 10.1007/s12264-019-00432-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/12/2019] [Indexed: 02/05/2023] Open
Affiliation(s)
- Liansheng Zhao
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Huijuan Wang
- The National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, China
| | - Yamin Zhang
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Jinxue Wei
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Peiyan Ni
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Hongyan Ren
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Gang Li
- Shaanxi Lifegen Co., Ltd, Xi'an, 712000, China
| | - Qiang Wang
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Gavin P Reynolds
- Biomolecular Science Research Centre, Sheffield Hallam University, Sheffield, S11WB, UK
| | - Weihua Yue
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100083, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100871, China
| | - Wei Deng
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Hao Yan
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100083, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100871, China
| | - Liwen Tan
- Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Qi Chen
- Beijing Anding Hospital, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, 100088, China
| | - Guigang Yang
- Beijing HuiLongGuan Hospital, Beijing, 102200, China
| | - Tianlan Lu
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100083, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100871, China
| | - Lifang Wang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100083, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100871, China
| | - Fuquan Zhang
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, 214121, China
| | - Jianli Yang
- Institute of Mental Health, Tianjin Anding Hospital, Tianjin, 300222, China.,Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Keqing Li
- Hebei Mental Health Center, Baoding, 071000, China
| | - Luxian Lv
- Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, China
| | - Qingrong Tan
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Yinfei Li
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Hua Yu
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Hongyan Zhang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100083, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100871, China
| | - Xin Ma
- Beijing Anding Hospital, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, 100088, China
| | - Fude Yang
- Beijing HuiLongGuan Hospital, Beijing, 102200, China
| | - Lingjiang Li
- Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Chuanyue Wang
- Beijing Anding Hospital, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, 100088, China
| | - Huiyao Wang
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Xiaojing Li
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Wanjun Guo
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Xun Hu
- Huaxi Biobank, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Yang Tian
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Xiaohong Ma
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Jeremy Coid
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Dai Zhang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, 100083, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, 100871, China
| | - Chao Chen
- The National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University, Xi'an, 710069, China.
| | - Tao Li
- Psychiatric Laboratory and Mental Health Center, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China. .,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China.
| | | |
Collapse
|
25
|
Thaweethee B, Suttajit S, Thanoi S, Dalton CF, Reynolds GP, Nudmamud-Thanoi S. Association of SLC1A2 and SLC17A7 polymorphisms with major depressive disorder in a Thai population. ASIAN BIOMED 2019. [DOI: 10.1515/abm-2019-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Background
Major depressive disorder (MDD) is a common psychiatric disorder with high prevalence and high risk of suicide. Genetic variation of glutamate transporters may associate with MDD and suicide attempt.
Objectives
To evaluate polymorphisms of excitatory amino acid transporter 2 gene (SLC1A2; rs752949, rs1885343, rs4755404, and rs4354668) and vesicular glutamate transporter 1 gene (SLC17A7; rs1043558, rs2946848, and rs11669017) in patients with MDD with and without suicide attempt, and determine the association of these polymorphisms with age of onset and severity of MDD.
Methods
DNA was extracted from blood taken from patients with MDD (n = 100; including nonsuicidal [n = 50] and suicidal [n = 50] subgroups) and controls (n = 100). Genotyping was conducted using TaqMan single-nucleotide polymorphism (SNP) genotyping.
Results
We found a significant difference in SLC17A7 rs2946848 genotype distribution between patients in the MDD and control groups (P = 0.016). Moreover, significant differences in SLC1A2 rs752949 (P = 0.022) and SLC17A7 rs2946848 (P = 0.026) genotype distributions were observed between patients in the nonsuicidal MDD and suicidal MDD groups. SLC1A2 rs1885343 A allele carriers showed significantly lower age of onset than GG genotype (P = 0.049). Furthermore, the severity of MDD indicated by the Hamilton Depression Rating Scale (HDRS) score of G allele carriers of SLC1A2 rs4755404 was significantly greater than the CC genotype (P = 0.013).
Conclusions
Polymorphisms of SLC1A2 and SLC17A7 may contribute to the risk of MDD and/or suicide attempt. An association of an SLC1A2 polymorphism with the severity of MDD was apparent.
Collapse
Affiliation(s)
- Benjamard Thaweethee
- Department of Anatomy, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
| | - Sirijit Suttajit
- Department of Psychiatry, Faculty of Medicine, Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
| | - Caroline F. Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University , Sheffield S1 1WB , UK
| | - Gavin P. Reynolds
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
- Biomolecular Sciences Research Centre, Sheffield Hallam University , Sheffield S1 1WB , UK
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University , Phitsanulok 65000 , Thailand
| |
Collapse
|
26
|
Reynolds GP, Dalton CF, Watrimez W, Jackson J, Harte MK. Adjunctive Lurasidone Suppresses Food Intake and Weight Gain Associated with Olanzapine Administration in Rats. Clin Psychopharmacol Neurosci 2019; 17:314-317. [PMID: 30905132 PMCID: PMC6478088 DOI: 10.9758/cpn.2019.17.2.314] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 11/18/2022]
Abstract
Objective Lurasidone is an antipsychotic drug that shows a relative lack of weight gain common to many antipsychotics. Aripiprazole and ziprasidone also show little weight gain and can reduce olanzapine-induced food intake and weight gain in animals, paralleling some clinical findings. We hypothesized that lurasidone would have similar actions. Methods Female Lister-hooded rats received intraperitoneal injection either 2× vehicle (saline), lurasidone (3 mg/kg) and vehicle, olanzapine (1 mg/kg) and vehicle, or olanzapine and lurasidone. Following drug administration food intake was measured for 60min. A further series of rats underwent a seven-day regime of once-daily administration of the above doses and free access to food and water. Weight gain over the course of the study was monitored. Results Olanzapine induced a significant increase in food intake while lurasidone showed no significant effect. Co-administration of lurasidone with olanzapine suppressed the increase in food intake. Repeated dosing showed an increase in body weight after seven days with olanzapine, and no significant effect observed with lurasidone, while repeated administration of lurasidone with olanzapine reduced the effect of olanzapine on the increase in body weight. Conclusion These findings support our hypotheses in that lurasidone, in addition to a lack of effect on acute food intake and short term weight gain, can reduce olanzapine-induced food intake and weight gain in rats. This indicates the drug to have an active anti-hyperphagic mechanism, rather than solely the absence of a drug-induced weight gain that is such a severe limitation of drugs such as olanzapine.
Collapse
Affiliation(s)
- Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University
| | | | - William Watrimez
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester
| | - Joshua Jackson
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester
| | - Michael K Harte
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester
| |
Collapse
|
27
|
Wei X, Zhang S, Yang W, Luo Z, Sun P, Dalton CF, Fachim HA, Reynolds GP. Neuromyelitis optica spectrum disorder in three generations of a Chinese family. Mult Scler Relat Disord 2019; 32:94-96. [PMID: 31075495 DOI: 10.1016/j.msard.2019.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/14/2019] [Accepted: 04/10/2019] [Indexed: 10/26/2022]
Abstract
Neuromyelitis optica spectrum disorder is an inflammatory demyelinating disease that is largely sporadic. Familial disease has been reported in one or two generations, although its basis remains unknown. We report here three subjects meeting diagnostic criteria for NMOSD in one family: a father and son, and the maternal aunt of the father. Anticipation, of 27 years, was apparent in transmission from father to son. Aquaporin-4 antibodies were observed in the aunt but not the father and son, nor in other family members. A putative pathogenic mutation in the NECL2 gene was not found in this pedigree. This first report of NMOSD in three generations of one family underlines the heterogeneity of familial NMOSD.
Collapse
Affiliation(s)
- Xianwen Wei
- Department of Neurology, Puer People's Hospital, Puer, Yunnan 665000, China
| | - Shihe Zhang
- Department of Neurology, Puer People's Hospital, Puer, Yunnan 665000, China
| | - Wen Yang
- Department of Neurology, Puer People's Hospital, Puer, Yunnan 665000, China.
| | - Zhuangying Luo
- Department of Neurology, Puer People's Hospital, Puer, Yunnan 665000, China
| | - Ping Sun
- Department of Neurology, Puer People's Hospital, Puer, Yunnan 665000, China
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, U.K
| | - Helene A Fachim
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, U.K
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, U.K
| |
Collapse
|
28
|
Fachim HA, Loureiro CM, Corsi-Zuelli F, Shuhama R, Louzada-Junior P, Menezes PR, Dalton CF, Del-Ben CM, Reynolds GP. GRIN2B promoter methylation deficits in early-onset schizophrenia and its association with cognitive function. Epigenomics 2019; 11:401-410. [DOI: 10.2217/epi-2018-0127] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: We investigated GRIN1 and GRIN2B promoter methylation in first-episode schizophrenia patients compared with siblings and controls, testing for correlations between DNA methylation, cognitive performance and clinical variables. Materials & methods: Blood-derived DNA from all groups underwent bisulfite conversion and pyrosequencing to determine methylation at CpG sites within the GRIN1 and GRIN2B promoters and results were compared with the measure of global methylation LINE-1.Results: We found hypomethylation among all CpGs analyzed within GRIN2B promoter in patients and greater LINE-1 methylation in patients and siblings. CpG4 was correlated to a measure of intellectual function. Conclusion: Changes in GRIN2B promoter methylation may represent an environmental influence contributing to glutamatergic dysfunction in psychosis and relate to lower cognitive performance in subjects with first-episode schizophrenia.
Collapse
Affiliation(s)
- Helene A Fachim
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
- Biomolecular Sciences Research Centre, Sheffield Hallam University, UK
| | - Camila M Loureiro
- Department of Internal Medicine, Division of Clinical Immunology, Ribeirão Preto Medical School, University of São Paulo, Brazil
- Population Mental Health Center, University of São Paulo, Brazil
| | - Fabiana Corsi-Zuelli
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Rosana Shuhama
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
- Population Mental Health Center, University of São Paulo, Brazil
| | | | - Paulo Rossi Menezes
- Population Mental Health Center, University of São Paulo, Brazil
- Department of Preventive Medicine, Faculty of Medicine, University of São Paulo, Brazil
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, UK
| | - Cristina Marta Del-Ben
- Department of Neurosciences & Behaviour, Ribeirão Preto Medical School, University of São Paulo, Brazil
- Population Mental Health Center, University of São Paulo, Brazil
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, UK
| |
Collapse
|
29
|
Thaweethee-Sukjai B, Suttajit S, Thanoi S, Dalton CF, Reynolds GP, Nudmamud-Thanoi S. Parvalbumin Promoter Methylation Altered in Major Depressive Disorder. Int J Med Sci 2019; 16:1207-1214. [PMID: 31588185 PMCID: PMC6775273 DOI: 10.7150/ijms.36131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 07/10/2019] [Indexed: 12/31/2022] Open
Abstract
Aims: To determine the extent of DNA methylation of parvalbumin gene (PVALB) promoter in major depressive disorder (MDD) patients with and without suicide attempt in comparison with healthy controls. Methods: The extracted DNA from dried blood spots of MDD patients (n = 92) including non-suicidal MDD and suicidal-MDD subgroups (n = 45 and n = 47, respectively) and age-matched control subjects (n = 95) was used for DNA methylation analysis at four CpG sites in the promoter sequence of PVALB by pyrosequencing. Results: The PVALB methylation was significantly increased at CpG2 and decreased at CpG4 in the MDD group compared to the control group, while there was no difference between non-suicidal MDD and suicidal-MDD subgroups. A significant inverse correlation of severity of MDD was indicated only for CpG4. Conclusion: This study provides the first evidence of abnormalities of PVALB promoter methylation in MDD and its correlation with MDD severity indicating a role for epigenetics in this psychiatric disorder.
Collapse
Affiliation(s)
- Benjamard Thaweethee-Sukjai
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Sirijit Suttajit
- Department of Psychiatry, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Gavin P Reynolds
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| |
Collapse
|
30
|
Khanthiyong B, Thanoi S, Reynolds GP, Nudmamud-Thanoi S. Association study of the functional Catechol-O-Methyltranferase (COMT) Val 158Met polymorphism on executive cognitive function in a Thai sample. Int J Med Sci 2019; 16:1461-1465. [PMID: 31673237 PMCID: PMC6818203 DOI: 10.7150/ijms.35789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 08/16/2019] [Indexed: 01/08/2023] Open
Abstract
Catechol-O-Methyltranferase (COMT) plays a crucial role in the removal of cortical dopamine and is strongly implicated in human executive function. Numerous studies have reported associations of the COMT Val158Met (rs4680) polymorphism with executive function in healthy subjects. However, little work has investigated this in the Thai population and the relationship of age and education with this association remains unclear. Therefore, this study was designed to investigate the association of this polymorphism of the COMT gene with executive cognitive brain function in healthy subjects and the relationship with age and education. The Wisconsin Card Sorting Test (WCST) was performed to assess executive function in 254 healthy Thai subjects (aged 20-72 years). The results showed a significant association of rs4680 with executive function, in which Val/Met heterozygotes demonstrated better cognitive set shifting performance. Moreover, Met allele carriers showed a significantly stronger effect in the categories completed score than did Val homozygotes. Furthermore, age and education also showed a significant association with COMT genotype and WCST. These results revealed that executive cognitive function is associated with COMT genotype and influenced by age and/or education level in a Thai sample.
Collapse
Affiliation(s)
- Bupachad Khanthiyong
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Gavin P Reynolds
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, United Kingdom
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| |
Collapse
|
31
|
Abstract
Deficits of brain parvalbumin (PV) are a consistent finding in schizophrenia and models of psychosis. We investigated whether this is associated with abnormal PV gene (PVALB) methylation in the brain in schizophrenia. Bisulfite pyrosequencing was used to determine cytosine (CpG) methylation in a PVALB promoter sequence. Greater PVALB methylation was found in schizophrenia hippocampus, while no differences were observed in prefrontal cortex. LINE-1 methylation, a measure of global methylation, was also elevated in both regions in schizophrenia, although the PVALB change was independent of this effect. These results provide the first evidence that PVALB promoter methylation is abnormal in schizophrenia and suggest that this epigenetic finding may relate to the reduction of PV expression seen in the disease.
Collapse
Affiliation(s)
- Helene A Fachim
- Biomolecular Sciences Research Center, Sheffield Hallam University, Sheffield, UK
| | - Umarat Srisawat
- Biomolecular Sciences Research Center, Sheffield Hallam University, Sheffield, UK
| | - Caroline F Dalton
- Biomolecular Sciences Research Center, Sheffield Hallam University, Sheffield, UK
| | - Gavin P Reynolds
- Biomolecular Sciences Research Center, Sheffield Hallam University, Sheffield, UK
| |
Collapse
|
32
|
Iamjan SA, Thanoi S, Watiktinkorn P, Reynolds GP, Nudmamud-Thanoi S. Genetic variation of GRIA3 gene is associated with vulnerability to methamphetamine dependence and its associated psychosis. J Psychopharmacol 2018; 32:309-315. [PMID: 29338492 DOI: 10.1177/0269881117750153] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Methamphetamine (METH) is an addictive psychostimulant drug commonly leading to schizophrenia-like psychotic symptoms. Disturbances in glutamatergic neurotransmission have been proposed as neurobiological mechanisms and the α-amino-3 hydroxy-5 methyl-4 isoxazole propionic acid (AMPA) glutamate receptor has been implicated in these processes. Moreover, genetic variants in GRIAs, genes encoding AMPA receptor subunits, have been observed in association with both drug dependence and psychosis. We hypothesized that variation of GRIA genes may be associated with METH dependence and METH-induced psychosis. Genotyping of GRIA1 rs1428920, GRIA2 rs3813296, GRIA3 rs3761554, rs502434 and rs989638 was performed in 102 male Thai controls and 100 METH-dependent subjects (53 with METH-dependent psychosis). We observed no evidence of association with METH dependence and METH-dependent psychosis in the GRIA1 and GRIA2 polymorphisms, nor with single polymorphisms rs3761554 and rs989638 in GRIA3. An association of GRIA3 rs502434 was identified with both METH dependence and METH-dependent psychosis, although this did not withstand correction for multiple testing. Combining the analysis of this site with the previously-demonstrated association with BDNF rs6265 resulted in a highly significant effect. These preliminary findings indicate that genetic variability in GRIA3 may interact with a functional BDNF polymorphism to provide a strong risk factor for the development of METH dependence in the Thai population.
Collapse
Affiliation(s)
- Sri-Arun Iamjan
- 1 Faculty of Medical Science, Department of Anatomy, Naresuan University, Phitsanulok, Thailand.,2 Faculty of Medical Science, Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok, Thailand
| | - Samur Thanoi
- 1 Faculty of Medical Science, Department of Anatomy, Naresuan University, Phitsanulok, Thailand.,2 Faculty of Medical Science, Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok, Thailand
| | | | - Gavin P Reynolds
- 2 Faculty of Medical Science, Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok, Thailand.,4 Biomolecular Sciences Research Centre, Sheffield Hallam University, UK
| | - Sutisa Nudmamud-Thanoi
- 1 Faculty of Medical Science, Department of Anatomy, Naresuan University, Phitsanulok, Thailand.,2 Faculty of Medical Science, Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok, Thailand
| |
Collapse
|
33
|
Abstract
The tranylcypromine stereoisomers have been investigated in a series of comparative trials in Parkinson's disease and the results indicate that doses below 3 mg/day, of the (+)-isomer in particular, are effective as adjuvant antiparkinsonian therapy. Biochemical results, monitoring platelet monoamine oxidase (MAO) activity and plasma concentrations of drugs and phenylethylamine, an MAO substrate, showed such low doses of the (+)-isomer to inhibit MAO without inducing the hypertensive reaction sometimes observed at higher dosage. These findings, along with the observation of substantial pharmacokinetic differences between the two isomers are discussed, particularly in relation to reports on their efficacy in depressive illness.
Collapse
|
34
|
Abstract
The increase in cardiovascular disease and reduced life expectancy in schizophrenia likely relate to an increased prevalence of metabolic disturbances. Such metabolic risk factors in schizophrenia may result from both symptom-related effects and aetiological factors. However, a major contributory factor is that of treatment with antipsychotic drugs. These drugs differ in effects on body weight; the underlying mechanisms are not fully understood and may vary between drugs, but may include actions at receptors associated with the hypothalamic control of food intake. Evidence supports 5-hydroxytryptamine receptor 2C and dopamine D2 receptor antagonism as well as antagonism at histamine H1 and muscarinic M3 receptors. These M3 receptors may also mediate the effects of some drugs on glucose regulation. Several antipsychotics showing little propensity for weight gain, such as aripiprazole, have protective pharmacological mechanisms, rather than just the absence of a hyperphagic effect. In addition to drug differences, there is large individual variation in antipsychotic drug-induced weight gain. This pharmacogenetic association reflects genetic variation in several drug targets, including the 5-hydroxytryptamine receptor 2C, as well as genes involved in obesity and metabolic disturbances. Thus predictive genetic testing for drug-induced weight gain would represents a first step towards personalised medicine addressing this severe and problematic iatrogenic disease.
Collapse
Affiliation(s)
- Gavin P Reynolds
- 1 Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Olga O McGowan
- 2 Hairmyres Hospital, NHS Lanarkshire, East Kilbride, UK
| |
Collapse
|
35
|
Veerasakul S, Watiktinkorn P, Thanoi S, Dalton CF, Fachim HA, Nudmamud-Thanoi S, Reynolds GP. Increased DNA methylation in the parvalbumin gene promoter is associated with methamphetamine dependence. Pharmacogenomics 2017; 18:1317-1322. [DOI: 10.2217/pgs-2016-0188] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The parvalbumin (PV)-containing subgroup of GABAergic neurons is particularly affected in schizophrenia and animal models of psychosis, including after methamphetamine (METH) administration. We investigated whether METH dependence and METH-induced psychosis may involve an effect on DNA methylation of the PVALB promoter. Materials & methods: The methylation of a PVALB promoter sequence was determined in 100 METH-dependent and 102 control subjects using pyrosequencing. Results: A significant increase in PVALB methylation was observed in METH dependence and METH-induced psychosis. No significant effect on long interspersed nucleotide element-1 methylation, a measure of global DNA methylation, was observed. Conclusion: These results demonstrate a specific association between elevated PVALB methylation and METH-induced psychosis. This finding may contribute to the GABAergic deficits associated with METH dependence.
Collapse
Affiliation(s)
- Siriluk Veerasakul
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | | | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Helene A Fachim
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Gavin P Reynolds
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| |
Collapse
|
36
|
Ding K, Yang J, Reynolds GP, Chen B, Shao J, Liu R, Qian Q, Liu H, Yang R, Wen J, Kang C. DAT1 methylation is associated with methylphenidate response on oppositional and hyperactive-impulsive symptoms in children and adolescents with ADHD. World J Biol Psychiatry 2017; 18:291-299. [PMID: 27676100 DOI: 10.1080/15622975.2016.1224928] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES To examine the association of the DNA methylation of DAT1 and DRD4 gene with methylphenidate (MPH) response in attention deficit hyperactivity disorder (ADHD). METHODS One hundred and eleven DSM-IV defined ADHD Chinese Han children were recruited. Inattention, hyperactivity-impulsivity and oppositional symptoms were evaluated by the Swanson, Nolan and Pelham-IV-parent rating scale (SNAP-IV-P) at baseline and 6 weeks after MPH treatment. DNA methylation of CpG sites in the promoter sequences of DAT1 and DRD4 was examined for association with treatment response. RESULTS Greater improvement on the SNAP-IV-P total score and percentage change from baseline score were both significantly correlated with DAT1 methylation (rho =-0.222, P = .019 and rho = -0.203, P = .032, respectively). A secondary analysis demonstrated that the effect of DAT1 methylation on symptom response was primarily related to the percentage change in oppositional symptoms (rho = -0.242; P = .012), with a smaller significant effect on hyperactivity-impulsivity (rho = -0.192; P = .045). No significant correlation was found between the treatment effect on inattention and DAT1 methylation (rho = -0.101; P = .292). No significant correlation was observed between mean DRD4 methylation and measures of treatment outcome or baseline symptoms. CONCLUSIONS Our findings provide initial evidence for the involvement of the epigenetic alterations of DAT1 in modulating the response to MPH treatment in ADHD, primarily on oppositional and hyperactive-impulsive symptoms.
Collapse
Affiliation(s)
- Kaijing Ding
- a Department of Psychiatry , The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , PR China
| | - Jianzhong Yang
- b Department of Psychiatry , The Second Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , PR China
| | - Gavin P Reynolds
- c BMRC, Sheffield Hallam University , Howard Street , Sheffield , UK
| | - Bing Chen
- d State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology , Chinese Academy of Sciences (CAS) , Kunming , Yunnan , PR China
| | - Jingru Shao
- d State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology , Chinese Academy of Sciences (CAS) , Kunming , Yunnan , PR China
| | - Ruixiang Liu
- a Department of Psychiatry , The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , PR China
| | - Qiujin Qian
- e National Clinical Research Centre for Mental Disorders, Peking University Sixth Hospital , Beijing , PR China
| | - Hua Liu
- a Department of Psychiatry , The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , PR China
| | - Runxu Yang
- a Department of Psychiatry , The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , PR China
| | - Jianfan Wen
- d State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology , Chinese Academy of Sciences (CAS) , Kunming , Yunnan , PR China
| | - Chuanyuan Kang
- a Department of Psychiatry , The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , PR China
| |
Collapse
|
37
|
Murray R, Correll CU, Reynolds GP, Taylor D. Atypical antipsychotics: recent research findings and applications to clinical practice: Proceedings of a symposium presented at the 29th Annual European College of Neuropsychopharmacology Congress, 19 September 2016, Vienna, Austria. Ther Adv Psychopharmacol 2017; 7:1-14. [PMID: 28344764 PMCID: PMC5349430 DOI: 10.1177/2045125317693200] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 01/17/2017] [Indexed: 12/15/2022] Open
Abstract
Available evidence suggests that second-generation atypical antipsychotics are broadly similar to first-generation agents in terms of their efficacy, but may have a more favourable tolerability profile, primarily by being less likely to cause extrapyramidal symptoms. However, atypical antipsychotics are variably associated with disturbances in the cardiometabolic arena, including increased body weight and the development of metabolic syndrome, which may reflect differences in their receptor binding profiles. Effective management of schizophrenia must ensure that the physical health of patients is addressed together with their mental health. This should therefore involve consideration of the specific tolerability profiles of available agents and individualization of treatment to minimize the likelihood of adverse metabolic sequelae, thereby improving long-term adherence and optimizing overall treatment outcomes. Alongside this, modifiable risk factors (such as exercise, diet, obesity/body weight and smoking status) must be addressed, in order to optimize patients' overall health and quality of life (QoL). In addition to antipsychotic-induced side effects, the clinical management of early nonresponders and psychopharmacological approaches for patients with treatment-resistant schizophrenia remain important unmet needs. Evidence suggests that antipsychotic response starts early in the course of treatment and that early nonresponse accurately predicts nonresponse over the longer term. Early nonresponse therefore represents an important modifiable risk factor for poor efficacy and effectiveness outcomes, since switching or augmenting antipsychotic treatment in patients showing early nonresponse has been shown to improve the likelihood of subsequent treatment outcomes. Recent evidence has also demonstrated that patients showing early nonresponse to treatment with lurasidone at 2 weeks may benefit from an increase in dose at this timepoint without compromising tolerability/safety. However, further research is required to determine whether these findings are generalizable to other antipsychotic agents.
Collapse
Affiliation(s)
- Robin Murray
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, 16 De Crespigny Park, London SE5 8AF, UK
| | - Christoph U. Correll
- Hofstra Northwell School of Medicine, The Zucker Hillside Hospital, New York, USA
| | - Gavin P. Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | | |
Collapse
|
38
|
Veerasakul S, Watiktinkorn P, Thanoi S, Reynolds GP, Nudmamud-Thanoi S. Association of polymorphisms in GAD1 and GAD2 genes with methamphetamine dependence. Pharmacogenomics 2016; 18:17-22. [PMID: 27967329 DOI: 10.2217/pgs-2016-0101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
AIM Association between polymorphisms in GAD genes and methamphetamine (METH) dependence was investigated in the Thai population. MATERIALS & METHODS Genotypes of rs769404 and rs701492 in GAD1 and rs2236418 in GAD2 polymorphisms were determined in 100 METH-dependent male subjects and 102 matched controls. RESULTS The genotype and allele frequencies of rs2236418 (GAD2) were associated with METH dependence and METH with psychosis, in which the G allele was related to increased risk. The presence of the rs769404-rs701492 (GAD1) C-C haplotype was associated with METH psychosis. CONCLUSION This study indicates that genetic variability in GAD1 and GAD2 contributes to risk of METH dependence and METH psychosis in the Thai population and indicates the role of the GABAergic system in these disorders.
Collapse
Affiliation(s)
- Siriluk Veerasakul
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | | | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Gavin P Reynolds
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Biomedical Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| |
Collapse
|
39
|
Nazree NE, Mohamed Z, Reynolds GP, Mohd Zain S, Masiran R, Sidi H, Chong LA, Hway AY, Adlan AS, Zainal NZ. Association of brain-derived neurotrophic factor valine to methionine polymorphism with sexual dysfunction following selective serotonin reuptake inhibitor treatment in female patients with major depressive disorder. Asia Pac Psychiatry 2016; 8:260-268. [PMID: 27787964 DOI: 10.1111/appy.12210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 07/24/2015] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The occurrence of female sexual dysfunction (FSD) in patients with major depressive disorder (MDD) receiving selective serotonin reuptake inhibitors (SSRIs) treatment gives negative impacts on patients' quality of life and causes treatment discontinuation. We aimed to investigate whether genetic polymorphism of identified candidate gene is associated with FSD in our study population. METHODS This is a cross-sectional study. A total of 95 female patients with MDD who met the criteria of the study were recruited and were specifically assessed on the sexual function by trained psychiatrists. Patients' DNA was genotyped for BDNF Val66Met polymorphism using real-time polymerase chain reaction. RESULTS The prevalence of FSD in this study is 31.6%. In the FSD group, patients with problematic marriage were significantly more frequent compared with patients who did not have problematic marriage (P = 0.009). Significant association was detected in the lubrication domain with BDNF Val66Met polymorphism (P = 0.030) using additive genetic model, with even stronger association when using the recessive model (P = 0.013). DISCUSSION This study suggested that there was no significant association between BDNF Val66Met with FSD. However, this polymorphism is significantly associated with lubrication disorder in patients treated with SSRIs.
Collapse
Affiliation(s)
- Nur Elia Nazree
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
| | - Zahurin Mohamed
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Gavin P Reynolds
- Biomedical Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Shamsul Mohd Zain
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ruziana Masiran
- Department of Psychiatry, University Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
| | - Hatta Sidi
- Department of Psychiatry, University Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
| | - Lu Ann Chong
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Anne Yee Hway
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Aida Syarinaz Adlan
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Nor Zuraida Zainal
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
40
|
Abstract
Here, Reynolds and Neill describe the studies that preceded and followed publication of this paper, which reported a deficit in parvalbumin (PV), a calcium-binding protein found in GABA interneurons known to be reduced in schizophrenia patients, in conjunction with a deficit in reversal learning in an animal model for schizophrenia. This publication resulted from common research interests: Reynolds in the neurotransmitter pathology of schizophrenia, and Neill in developing animal models for schizophrenia symptomatology. The animal model, using a sub-chronic dosing regimen (sc) with the non-competitive NMDA receptor antagonist PCP (phencyclidine), evolved from previous work in rats (for PCP) and primates (for cognition). The hypothesis of a PV deficit came from emerging evidence for a GABAergic dysfunction in schizophrenia, in particular a deficit in PV-containing GABA interneurons. Since this original publication, a PV deficit has been identified in other animal models for schizophrenia, and the PV field has expanded considerably. This includes mechanistic work attempting to identify the link between oxidative stress and GABAergic dysfunction using this scPCP model, and assessment of the potential of the PV neuron as a target for new antipsychotic drugs. The latter has included development of a molecule targeting KV3.1 channels located on PV-containing GABA interneurons which can restore both PV expression and cognitive deficits in the scPCP model.
Collapse
Affiliation(s)
- Gavin P Reynolds
- Sheffield Hallam University, Biomolecular Sciences Research Centre, Sheffield, UK
| | - Joanna C Neill
- Manchester Pharmacy School, University of Manchester, Manchester, UK
| |
Collapse
|
41
|
Fachim HA, Srisawat U, Dalton CF, Harte MK, Marsh S, Neill JC, Reynolds GP. Subchronic administration of phencyclidine produces hypermethylation in the parvalbumin gene promoter in rat brain. Epigenomics 2016; 8:1179-83. [PMID: 27529801 DOI: 10.2217/epi-2016-0050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM A deficit in parvalbumin neurons is found in schizophrenia and several animal models of the disease. In this preliminary study, we determined whether one such model, phencyclidine (PCP) administration, results in changes in DNA methylation in the rat Pvalb promoter. MATERIALS & METHODS DNA from hippocampus and prefrontal cortex from rats, which 6 weeks previously received either 2 mg/kg PCP or vehicle for 7 days, underwent bisulphite pyrosequencing to determine methylation. RESULTS PCP administration induced significantly greater methylation at one of two Pvalb CpG sites in both prefrontal cortex and hippocampus, while no significant difference was found in long interspersed nucleotide element-1, a global measure of DNA methylation. CONCLUSION Subchronic PCP administration results in a specific hypermethylation in the Pvalb promoter which may contribute to parvalbumin deficits in this animal model of psychosis.
Collapse
Affiliation(s)
- Helene A Fachim
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Umarat Srisawat
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - Michael K Harte
- Manchester Pharmacy School, University of Manchester, Manchester, M13 9PT, UK
| | - Samuel Marsh
- Manchester Pharmacy School, University of Manchester, Manchester, M13 9PT, UK
| | - Joanna C Neill
- Manchester Pharmacy School, University of Manchester, Manchester, M13 9PT, UK
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| |
Collapse
|
42
|
Xu Z, Reynolds GP, Yuan Y, Shi Y, Pu M, Zhang Z. TPH-2 Polymorphisms Interact with Early Life Stress to Influence Response to Treatment with Antidepressant Drugs. Int J Neuropsychopharmacol 2016; 19:pyw070. [PMID: 27521242 PMCID: PMC5137282 DOI: 10.1093/ijnp/pyw070] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 08/04/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Variation in genes implicated in monoamine neurotransmission may interact with environmental factors to influence antidepressant response. We aimed to determine how a range of single nucleotide polymorphisms in monoaminergic genes influence this response to treatment and how they interact with childhood trauma and recent life stress in a Chinese sample. An initial study of monoaminergic coding region single nucleotide polymorphisms identified significant associations of TPH2 and HTR1B single nucleotide polymorphisms with treatment response that showed interactions with childhood and recent life stress, respectively (Xu et al., 2012). METHODS A total of 47 further single nucleotide polymorphisms in 17 candidate monoaminergic genes were genotyped in 281 Chinese Han patients with major depressive disorder. Response to 6 weeks' antidepressant treatment was determined by change in the 17-item Hamilton Depression Rating Scale score, and previous stressful events were evaluated by the Life Events Scale and Childhood Trauma Questionnaire-Short Form. RESULTS Three TPH2 single nucleotide polymorphisms (rs11178998, rs7963717, and rs2171363) were significantly associated with antidepressant response in this Chinese sample, as was a haplotype in TPH2 (rs2171363 and rs1487278). One of these, rs2171363, showed a significant interaction with childhood adversity in its association with antidepressant response. CONCLUSIONS These findings provide further evidence that variation in TPH2 is associated with antidepressant response and may also interact with childhood trauma to influence outcome of antidepressant treatment.
Collapse
Affiliation(s)
- Zhi Xu
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing 210009, PR China (Drs Xu and Yuan); Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, United Kingdom (Dr Reynolds); Department of Neuropsychiatry, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210000, PR China (Dr Shi); Department of Neurology, Wuxi first people's Hospital, Wuxi 214000, PR China (Dr Pu); Department of Neurology, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing 210009, PR China (Dr Zhang).
| | | | | | | | | | | |
Collapse
|
43
|
Cooper SJ, Reynolds GP, Barnes T, England E, Haddad PM, Heald A, Holt R, Lingford-Hughes A, Osborn D, McGowan O, Patel MX, Paton C, Reid P, Shiers D, Smith J. BAP guidelines on the management of weight gain, metabolic disturbances and cardiovascular risk associated with psychosis and antipsychotic drug treatment. J Psychopharmacol 2016; 30:717-48. [PMID: 27147592 DOI: 10.1177/0269881116645254] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Excess deaths from cardiovascular disease are a major contributor to the significant reduction in life expectancy experienced by people with schizophrenia. Important risk factors in this are smoking, alcohol misuse, excessive weight gain and diabetes. Weight gain also reinforces service users' negative views of themselves and is a factor in poor adherence with treatment. Monitoring of relevant physical health risk factors is frequently inadequate, as is provision of interventions to modify these. These guidelines review issues surrounding monitoring of physical health risk factors and make recommendations about an appropriate approach. Overweight and obesity, partly driven by antipsychotic drug treatment, are important factors contributing to the development of diabetes and cardiovascular disease in people with schizophrenia. There have been clinical trials of many interventions for people experiencing weight gain when taking antipsychotic medications but there is a lack of clear consensus regarding which may be appropriate in usual clinical practice. These guidelines review these trials and make recommendations regarding appropriate interventions. Interventions for smoking and alcohol misuse are reviewed, but more briefly as these are similar to those recommended for the general population. The management of impaired fasting glycaemia and impaired glucose tolerance ('pre-diabetes'), diabetes and other cardiovascular risks, such as dyslipidaemia, are also reviewed with respect to other currently available guidelines.These guidelines were compiled following a consensus meeting of experts involved in various aspects of these problems. They reviewed key areas of evidence and their clinical implications. Wider issues relating to primary care/secondary care interfaces are discussed but cannot be resolved within guidelines such as these.
Collapse
Affiliation(s)
- Stephen J Cooper
- Professor of Psychiatry (Emeritus), Queen's University Belfast, UK Clinical Lead for the National Audit of Schizophrenia, Centre for Quality Improvement, Royal College of Psychiatrists, London, UK
| | - Gavin P Reynolds
- Professor (Emeritus), Queen's University Belfast, UK Honorary Professor of Neuroscience, Sheffield Hallam University, Sheffield, UK
| | | | - Tre Barnes
- Professor of Psychiatry, The Centre for Mental Health, Imperial College London, London, UK
| | - E England
- General Practitioner, Laurie Pike Health Centre, Birmingham, UK
| | - P M Haddad
- Honorary Clinical Professor of Psychiatry, University of Manchester, Manchester, UK Consultant Psychiatrist, Greater Manchester West Mental Health NHS Foundation Trust, Salford, UK
| | - A Heald
- Consultant Physician, Leighton and Macclesfield Hospitals, Cheshire, UK Research Fellow, University of Manchester, Manchester, UK
| | - Rig Holt
- Professor in Diabetes and Endocrinology, Human Development and Health Academic Unit, University of Southampton, Southampton, UK
| | - A Lingford-Hughes
- Professor of Addiction Biology, Imperial College, London, UK Consultant Psychiatrist, CNWL NHS Foundation Trust, London, UK
| | - D Osborn
- Professor of Psychiatric Epidemiology and Honorary Consultant Psychiatrist, Division of Psychiatry UCL, London, UK
| | - O McGowan
- Trainee in Psychiatry, Hairmyres Hospital, Glasgow, UK
| | - M X Patel
- Honorary Senior Lecturer, King's College London, IOPPN, Department of Psychosis Studies PO68, London, UK
| | - C Paton
- Chief Pharmacist, Oxleas NHS Foundation Trust, Dartford, UK Joint-Head, Prescribing Observatory for Mental Health, CCQI, Royal College of Psychiatrists, London, UK
| | - P Reid
- Policy Manager, Rethink Mental Illness, London, UK
| | - D Shiers
- Primary Care Lead for the National Audit of Schizophrenia, Centre for Quality Improvement, Royal College of Psychiatrists, London, UK
| | - J Smith
- Professor of Early Intervention and Psychosis, University of Worcester, Worcester, UK
| |
Collapse
|
44
|
Veerasakul S, Thanoi S, Watiktinkorn P, Reynolds GP, Nudmamud-Thanoi S. Does elevated peripheral benzodiazepine receptor gene expression relate to cognitive deficits in methamphetamine dependence? Hum Psychopharmacol 2016; 31:243-6. [PMID: 26913858 DOI: 10.1002/hup.2523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 12/19/2015] [Accepted: 01/13/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND Methamphetamine (METH) is a neurotoxin and psychostimulant drug with potent effects on the central nervous system. With chronic METH administration, an inflammatory glial response is observed as a result of METH-induced neurotoxicity. One inflammatory marker is the peripheral benzodiazepine receptor (PBR). OBJECTIVE The purpose of the present study was to determine whether PBR expression is changed in METH dependence and whether the changes relate to cognitive deficits. METHODS Reverse transcriptase-polymerase chain reaction was used to investigate PBR gene expression in blood samples taken from 14 male subjects with METH dependence and 14 controls. RESULTS The results showed a significant increase in PBR gene expression in METH dependence, suggestive of a systemic inflammatory response. The increase remained elevated for more than 1 year following abstinence from METH use, but eventually returned to normal. Subjects with elevated PBR also exhibited a deficit in one domain of the Wisconsin Card Sorting Test. CONCLUSION The results suggest that systemic inflammatory effects can be associated with chronic METH abuse, and this may relate to the cognitive deficits seen in METH dependence. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Siriluk Veerasakul
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | | | - Gavin P Reynolds
- Biomedical Research Centre, Sheffield Hallam University, Sheffield, UK.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| |
Collapse
|
45
|
Affiliation(s)
- Gavin P Reynolds
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Helene A Fachim
- Department of Neuroscience & Behavior, Medical School of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil
- Institute of Neuroscience & Behavior - INeC, Ribeirao Preto, Brazil
| |
Collapse
|
46
|
McKibben CE, Reynolds GP, Jenkins TA. Concurrent Risperidone Administration Attenuates the Development of Locomotor Sensitization Following Sub-Chronic Phencyclidine in Rats. Pharmacopsychiatry 2016; 49:62-5. [PMID: 26838118 DOI: 10.1055/s-0035-1569417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
INTRODUCTION In schizophrenia early treatment may prevent disorder onset, or at least minimize its impact, suggesting possible neuroprotective properties of antipsychotics. The present study investigates the effects of chronic treatment with the atypical antipsychotic, risperidone, on locomotor sensitization in the subchronic phencyclidine-treated rat. METHODS Rats were treated with phencyclidine sub-chronically (2 mg/kg bi-daily for one week followed by a one-week wash-out period) or vehicle. Half of the phencyclidine group was concurrently treated with risperidone (0.5 mg/kg IP) twice daily for 15 days, beginning 3 days before the start of phencyclidine administration. 6 weeks after treatment all rats were injected with a phencyclidine-challenge (3.2 mg/kg) and immediately after their locomotor activity measured for 20 min. RESULTS Co-administration of risperidone at the time of phencyclidine administration significantly reduced the phencyclidine-challenge locomotor effect administered 6 weeks later. DISCUSSION These results demonstrate that concurrent risperidone is neuroprotective, and clearly suggests its functionality can be translated to a clinical setting for treating the so-called prodrome.
Collapse
Affiliation(s)
- C E McKibben
- Division of Psychiatry and Neuroscience, Queen's University Belfast, Northern Ireland, United Kingdom
| | - G P Reynolds
- Division of Psychiatry and Neuroscience, Queen's University Belfast, Northern Ireland, United Kingdom
| | - T A Jenkins
- Division of Psychiatry and Neuroscience, Queen's University Belfast, Northern Ireland, United Kingdom
| |
Collapse
|
47
|
Iamjan SA, Thanoi S, Watiktinkorn P, Nudmamud-Thanoi S, Reynolds GP. BDNF (Val66Met) genetic polymorphism is associated with vulnerability for methamphetamine dependence. Pharmacogenomics 2015; 16:1541-5. [PMID: 26401760 DOI: 10.2217/pgs.15.96] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
AIM Association of the brain-derived neurotrophic factor (BDNF) genetic polymorphism rs6265 (Val66Met) with methamphetamine (METH) dependence and METH-induced psychosis was investigated in the Thai population. MATERIALS & METHODS The rs6265 genotype was determined in 100 male METH-dependent subjects and 102 controls using a real-time PCR high-resolution melt (RT-PCR-HRM) assay. RESULTS The rs6265 genotype demonstrated significant differences in distribution between METH-dependent subjects and controls in which the frequency of GG genotype versus A-allele carriers was associated with METH dependence. Moreover, a significant effect of genotype on the occurrence of psychosis was found, with a lower frequency of GG genotype associated with METH-induced psychosis. CONCLUSION The present findings indicate that rs6265 is associated with METH dependence in the Thai population, with the GG genotype greater in METH-dependent subjects but reducing the emergence of METH-dependent psychosis.
Collapse
Affiliation(s)
- Sri-Arun Iamjan
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Samur Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
| | | | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Gavin P Reynolds
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.,Biomedical Research Centre, Sheffield Hallam University, Sheffield, S1 1WB, UK
| |
Collapse
|
48
|
Abstract
The receptor pharmacology of many antipsychotic drugs includes actions at various serotonin (5-hydroxytryptamine [5-HT]) receptors. The 5-HT neurotransmitter system is thought to be involved in many of the consequences of treatment with antipsychotic drugs, including both symptom response, primarily of negative and depressive symptoms, and adverse effects, notably extrapyramidal side effects and weight gain. There is substantial interindividual variability in these drug effects, to which genetic variability contributes. We review here the influence of functional polymorphisms in genes associated with 5-HT function, including the various processes of neurotransmitter synthesis, receptors, transporters and metabolism, on the clinical response to, and adverse effects of, antipsychotic drugs. The relatively young field of epigenetics also contributes to the variability of 5-HT-related genes in influencing drug response. Several of these findings inform our understanding of the mechanisms of antipsychotic drug action, and also provide the opportunity for the development of genetic testing for personalized medicine.
Collapse
Affiliation(s)
- Hao Tang
- Department of Neurology, First People's Hospital of Yunnan Province, Kunming, 650021 China
| | | | | |
Collapse
|
49
|
Roffeei SN, Mohamed Z, Reynolds GP, Said MA, Hatim A, Mohamed EHM, Aida SA, Zainal NZ. Association of FTO, LEPR and MTHFR gene polymorphisms with metabolic syndrome in schizophrenia patients receiving antipsychotics. Pharmacogenomics 2015; 15:477-85. [PMID: 24624915 DOI: 10.2217/pgs.13.220] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM The occurrence of metabolic syndrome (MS) in schizophrenia patients receiving long-term antipsychotics (APs) contributes to their high mortality rate. We aimed to determine whether genetic polymorphisms of identified candidate genes are associated with MS in our study population. MATERIALS & METHODS We recruited 206 schizophrenia patients receiving AP treatment for at least a year. Cross-sectional measurements of weight, height, blood pressure, waist and hip circumference, and other lipid profiles were recorded. Patient DNA was genotyped for 16 candidate gene polymorphisms. RESULTS Of these patients, 59.7% were found to have MS while 40.3% did not. All metabolic parameters were significantly different between the two groups. Only three of the 16 polymorphisms studied showed significant association with MS; rs9939609 of the FTO gene confers risk for MS (odds ratio [OR]: 1.73, 95% CI: 1.07-2.78, p = 0.026), while rs1137101 of the LEPR gene (OR: 0.47, 95% CI: 0.28-0.80, p = 0.005) and rs1801133 of the MTHFR gene (OR: 0.59, 95% CI: 0.35-0.99, p = 0.049) are protective against MS. CONCLUSION Polymorphisms of the FTO, LEPR and MTHFR genes may play a role in MS in Malaysian schizophrenia patients receiving long-term treatment with APs.
Collapse
Affiliation(s)
- Siti Norsyuhada Roffeei
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Reynolds GP, Riederer P. Assessment of MAO inhibitors using postmortem human brain tissue: biochemical and therapeutic implications. Mod Probl Pharmacopsychiatry 2015; 19:255-9. [PMID: 6408410 DOI: 10.1159/000407522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|