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Bogie BJM, Noël C, Alftieh A, MacDonald J, Lei YT, Mongeon J, Mayaud C, Dans P, Guimond S. Verbal memory impairments in mood disorders and psychotic disorders: A systematic review of comparative studies. Prog Neuropsychopharmacol Biol Psychiatry 2024; 129:110891. [PMID: 37931773 DOI: 10.1016/j.pnpbp.2023.110891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Mood and psychotic disorders are both associated with verbal memory impairments. Verbal memory represents an important treatment target for both disorders. However, whether the neurocognitive and neurophysiological profiles of verbal memory impairments differ between specific disorders within these two diagnostic categories and healthy controls remains unclear. The current systematic review synthesized findings from comparative studies which used behavioural and neuroimaging tasks to investigate verbal memory impairments between: (1) mood disorder, psychotic disorder, and healthy control groups; and (2) mood disorder without psychotic features, mood disorder with psychotic features, and healthy control groups. METHODS The search strategy combined terms related to three main concepts: 'mood disorders', 'psychotic disorders', and 'verbal memory'. Searches were executed in Embase, MEDLINE, PsycInfo, and PubMed databases. A total of 38 articles met the full eligibility criteria and were included in the final narrative synthesis. Findings were stratified by memory domain (overall composite score, verbal working memory, immediate recall, delayed recall, and recognition memory) and by illness phase (acute and non-acute). RESULTS Mood and psychotic disorders displayed consistent verbal memory impairments compared to healthy controls during the acute and non-acute phases. Few significant differences were identified in the literature between mood and psychotic disorders, and between mood disorders with and without psychotic features. Individuals with schizophrenia were found to have decreased immediate and delayed verbal recall performance compared to bipolar disorder groups during the acute phase. Major depressive disorder groups with psychotic features were also found to have decreased delayed verbal recall performance compared to those without psychosis during the acute phase. No consistent differences were identified between mood and psychotic disorders during the non-acute phase. Finally, preliminary evidence suggests there may be functional abnormalities in important frontal and temporal brain regions related to verbal memory difficulties in both mood and psychotic disorders. DISCUSSION The current findings have potential implications for the diagnosis and treatment of cognitive impairments in mood and psychotic disorders. Verbal recall memory may serve as a sensitive tool in the risk stratification of cognitive impairments for certain mood and psychotic disorders. Moreover, since no widespread differences between clinical groups were identified, the evidence supports providing targeted interventions for verbal memory, such as pharmacological and non-pharmacological interventions, through a trans-diagnostic approach in mood and psychotic disorders.
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Affiliation(s)
- Bryce J M Bogie
- MD/PhD Program, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
| | - Chelsea Noël
- Department of Psychology, Lakehead University, Thunder Bay, ON, Canada
| | - Ahmad Alftieh
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
| | - Julia MacDonald
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada; Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - Ya Ting Lei
- Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Gatineau, QC, Canada
| | - Jamie Mongeon
- The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada
| | - Claire Mayaud
- Department of Psychology, University of Bordeaux, France
| | - Patrick Dans
- Temerty Centre, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Synthia Guimond
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; The Royal's Institute of Mental Health Research, Royal Ottawa Mental Health Centre, Ottawa, ON, Canada; Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Gatineau, QC, Canada; Department of Psychiatry, University of Ottawa, Ottawa, ON, Canada.
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2
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Zhao Y, Zhong Y, Chen W, Chang S, Cao Q, Wang Y, Yang L. Ocular and neural genes jointly regulate the visuospatial working memory in ADHD children. BEHAVIORAL AND BRAIN FUNCTIONS : BBF 2023; 19:14. [PMID: 37658396 PMCID: PMC10472596 DOI: 10.1186/s12993-023-00216-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 08/16/2023] [Indexed: 09/03/2023]
Abstract
OBJECTIVE Working memory (WM) deficits have frequently been linked to attention deficit hyperactivity disorder (ADHD). Despite previous studies suggested its high heritability, its genetic basis, especially in ADHD, remains unclear. The current study aimed to comprehensively explore the genetic basis of visual-spatial working memory (VSWM) in ADHD using wide-ranging genetic analyses. METHODS The current study recruited a cohort consisted of 802 ADHD individuals, all met DSM-IV ADHD diagnostic criteria. VSWM was assessed by Rey-Osterrieth complex figure test (RCFT), which is a widely used psychological test include four memory indexes: detail delayed (DD), structure delayed (SD), structure immediate (SI), detail immediate (DI). Genetic analyses were conducted at the single nucleotide polymorphism (SNP), gene, pathway, polygenic and protein network levels. Polygenic Risk Scores (PRS) were based on summary statistics of various psychiatric disorders, including ADHD, autism spectrum disorder (ASD), major depressive disorder (MDD), schizophrenia (SCZ), obsessive compulsive disorders (OCD), and substance use disorder (SUD). RESULTS Analyses at the single-marker level did not yield significant results (5E-08). However, the potential signals with P values less than E-05 and their mapped genes suggested the regulation of VSWM involved both ocular and neural system related genes, moreover, ADHD-related genes were also involved. The gene-based analysis found RAB11FIP1, whose encoded protein modulates several neurodevelopment processes and visual system, as significantly associated with DD scores (P = 1.96E-06, Padj = 0.036). Candidate pathway enrichment analyses (N = 53) found that forebrain neuron fate commitment significantly enriched in DD (P = 4.78E-04, Padj = 0.025), and dopamine transport enriched in SD (P = 5.90E-04, Padj = 0.031). We also observed a significant negative relationship between DD scores and ADHD PRS scores (P = 0.0025, Empirical P = 0.048). CONCLUSIONS Our results emphasized the joint contribution of ocular and neural genes in regulating VSWM. The study reveals a shared genetic basis between ADHD and VSWM, with GWAS indicating the involvement of ADHD-related genes in VSWM. Additionally, the PRS analysis identifies a significant relationship between ADHD-PRS and DD scores. Overall, our findings shed light on the genetic basis of VSWM deficits in ADHD, and may have important implications for future research and clinical practice.
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Affiliation(s)
- Yilu Zhao
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China
| | - Yuanxin Zhong
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China
- Department of Psychiatry, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - Wei Chen
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China
- Sichuan Provincial Center for Mental Health, The Center of Psychosomatic Medicine of Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Suhua Chang
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China
| | - Qingjiu Cao
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China
| | - Yufeng Wang
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China
| | - Li Yang
- Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital), NHC Key Laboratory of Mental Health (Peking University), 51 Huayuan Bei Road, Beijing, 100191, China.
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Rocchetti J, Fasano C, Dal-Bo G, Guma E, El Mestikawy S, Wong TP, Fakhfouri G, Giros B. Persistent extrasynaptic hyperdopaminergia in the mouse hippocampus induces plasticity and recognition memory deficits reversed by the atypical antipsychotic sulpiride. PLoS One 2023; 18:e0289770. [PMID: 37624765 PMCID: PMC10456148 DOI: 10.1371/journal.pone.0289770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
Evidence suggests that subcortical hyperdopaminergia alters cognitive function in schizophrenia and antipsychotic drugs (APD) fail at rescuing cognitive deficits in patients. In a previous study, we showed that blocking D2 dopamine receptors (D2R), a core action of APD, led to profound reshaping of mesohippocampal fibers, deficits in synaptic transmission and impairments in learning and memory in the mouse hippocampus (HP). However, it is currently unknown how excessive dopamine affects HP-related cognitive functions, and how APD would impact HP functions in such a state. After verifying the presence of DAT-positive neuronal projections in the ventral (temporal), but not in the dorsal (septal), part of the HP, GBR12935, a blocker of dopamine transporter (DAT), was infused in the CA1 of adult C57Bl/6 mice to produce local hyperdopaminergia. Chronic GBR12935 infusion in temporal CA1 induced a mild learning impairment in the Morris Water Maze and abolished long-term recognition memory in novel-object (NORT) and object-place recognition tasks (OPRT). Deficits were accompanied by a significant decrease in DAT+ mesohippocampal fibers. Intrahippocampal or systemic treatment with sulpiride during GBR infusions improved the NORT deficit but not that of OPRT. In vitro application of GBR on hippocampal slices abolished long-term depression (LTD) of fEPSP in temporal CA1. LTD was rescued by co-application with sulpiride. In conclusion, chronic DAT blockade in temporal CA1 profoundly altered mesohippocampal modulation of hippocampal functions. Contrary to previous observations in normodopaminergic mice, antagonising D2Rs was beneficial for cognitive functions in the context of hippocampal hyperdopaminergia.
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Affiliation(s)
- Jill Rocchetti
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
| | - Caroline Fasano
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
| | - Gregory Dal-Bo
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
| | - Elisa Guma
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
| | - Salah El Mestikawy
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
- Sorbonne Université, INSERM, CNRS, NPS – IBPS, Paris, France
| | - Tak-Pan Wong
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
| | - Gohar Fakhfouri
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
| | - Bruno Giros
- Department of Psychiatry, Douglas Hospital, Mc Gill University, Montreal, Québec, Canada
- Université Paris-Cité, INCC UMR 8002, CNRS, Paris, France
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Lubec J, Hussein AM, Kalaba P, Feyissa DD, Arias-Sandoval E, Cybulska-Klosowicz A, Bezu M, Stojanovic T, Korz V, Malikovic J, Aher NY, Zehl M, Dragacevic V, Leban JJ, Sagheddu C, Wackerlig J, Pistis M, Correa M, Langer T, Urban E, Höger H, Lubec G. Low-Affinity/High-Selectivity Dopamine Transport Inhibition Sufficient to Rescue Cognitive Functions in the Aging Rat. Biomolecules 2023; 13:biom13030467. [PMID: 36979402 PMCID: PMC10046369 DOI: 10.3390/biom13030467] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
The worldwide increase in cognitive decline, both in aging and with psychiatric disorders, warrants a search for pharmacological treatment. Although dopaminergic treatment approaches represent a major step forward, current dopamine transporter (DAT) inhibitors are not sufficiently specific as they also target other transporters and receptors, thus showing unwanted side effects. Herein, we describe an enantiomerically pure, highly specific DAT inhibitor, S-CE-123, synthetized in our laboratory. Following binding studies to DAT, NET and SERT, GPCR and kinome screening, pharmacokinetics and a basic neurotoxic screen, S-CE-123 was tested for its potential to enhance and/or rescue cognitive functions in young and in aged rats in the non-invasive reward-motivated paradigm of a hole-board test for spatial learning. In addition, an open field study with young rats was carried out. We demonstrated that S-CE-123 is a low-affinity but highly selective dopamine reuptake inhibitor with good bioavailability. S-CE-123 did not induce hyperlocomotion or anxiogenic or stereotypic behaviour in young rats. Our compound improved the performance of aged but not young rats in a reward-motivated task. The well-described impairment of the dopaminergic system in aging may underlie the age-specific effect. We propose S-CE-123 as a possible candidate for developing a tentative therapeutic strategy for age-related cognitive decline and cognitive dysfunction in psychiatric disorders.
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Affiliation(s)
- Jana Lubec
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Ahmed M. Hussein
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
- Department of Zoology, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Predrag Kalaba
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Daniel Daba Feyissa
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | | | - Anita Cybulska-Klosowicz
- Neurobiology of Emotions Laboratory, Nencki Institute of Experimental Biology, 02093 Warsaw, Poland
| | - Mekite Bezu
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Tamara Stojanovic
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Volker Korz
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Jovana Malikovic
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Nilima Y. Aher
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Martin Zehl
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Vladimir Dragacevic
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Johann Jakob Leban
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Claudia Sagheddu
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy
| | - Judith Wackerlig
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Marco Pistis
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy
- Section of Cagliari, Neuroscience Institute, National Research Council of Italy (CNR), 09042 Cagliari, Italy
| | - Merce Correa
- Department of Psychobiology, Universitat Jaume I, 12006 Castelló, Spain
- Department of Psychological Sciences, Behavioral Neuroscience Division, University of Connecticut, Storrs, CT 06269, USA
| | - Thierry Langer
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Ernst Urban
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Harald Höger
- Core Unit of Biomedical Research, Division of Laboratory Animal Science and Genetics, Medical University of Vienna, 2325 Himberg, Austria
| | - Gert Lubec
- Programme for Proteomics, Paracelsus Medical University, 5020 Salzburg, Austria
- Correspondence: ; Tel.: +43-676-569-4816
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5
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Juárez-Cedillo T, González-Figueroa E, Martínez-Rodríguez N, Fragosos JM, Garrido-Acosta O, Vargas-Alarcón G. Influence of COMT polymorphism in cognitive performance on dementia in community-dwelling elderly Mexican (SADEM study). Metab Brain Dis 2021; 36:1223-1229. [PMID: 33900525 DOI: 10.1007/s11011-021-00740-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/14/2021] [Indexed: 10/21/2022]
Abstract
There is an inconsistent finding about the relationship of catechol-O-methyltransferase (COMT) with dementia susceptibility, as well as with cognitive impairment. To substantiate this, we examined COMT genotype effects in certain cognitive domains in dementia. To evaluate the effects of COMT Val158Met on cognitive performance, we used The Mini-Mental State Examination (MMSE), the cognitive subscale of the Alzheimer's Disease Assessment Scale-cognitive (ADAS-cog) and the Syndrome Kurz Test (SKT). The results show COMT Val/Met, Val/Val genotype polymorphisms had a significant effect on cognition performance (OR = 1.75 (95 %CI 1.22-2.54) and (OR = 2.76 (95 %CI 1.78-4.26), p < 0.001), and with adjustment for all cognitive test scores together, Val/Val (OR = 4.98 (95 % CI 1.47-16.86) and Val/Met (OR = 3.62 (95 % CI 1.37-9.56) had effect. Our study allows us to understand the role of COMT in cognitive performance in dementia, as well as interaction with other known risk factors for this pathology. This data might help in developing new therapeutic targets for cognitive impairment, main symptom of dementia. Other risk genotypes or haplotypes should be evaluated to determine the association with cognitive decline in dementia.
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Affiliation(s)
- Teresa Juárez-Cedillo
- Unidad de Investigación Epidemiológica y en Servicios de Salud Área Envejecimiento, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
- Unidad de Investigación en Epidemiología Clínica, Hospital General Regional No 1 Doctor Carlos Mac Gregor Sánchez Navarro. Instituto Mexicano del Seguro Social , Mexico City, Mexico.
| | - Evangelina González-Figueroa
- Unidad de Investigación en Epidemiología Clínica, Hospital General Regional No 1 Doctor Carlos Mac Gregor Sánchez Navarro. Instituto Mexicano del Seguro Social , Mexico City, Mexico
| | - Nancy Martínez-Rodríguez
- Epidemiology, Endocrinology & Nutrition Research Unit, Hospital Infantil de México "Federico Gómez", Mexico City, Mexico
| | - Jose M Fragosos
- Departamento de Biología Molecular, Instituto Nacional de Cardiología 'Ignacio Chávez', Mexico City, México
| | - Osvaldo Garrido-Acosta
- Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Gilberto Vargas-Alarcón
- Departamento de Biología Molecular, Instituto Nacional de Cardiología 'Ignacio Chávez', Mexico City, México
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A Meta-analysis of the Association Between SLC6A3 Gene Polymorphisms and Schizophrenia. J Mol Neurosci 2019; 70:155-166. [PMID: 31440993 DOI: 10.1007/s12031-019-01399-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/14/2019] [Indexed: 12/17/2022]
Abstract
The dopamine transporter is coded by the SLC6A3 gene and plays an important role in regulation of the neurotransmitter dopamine. To detect the association between the SLC6A3 gene and the risk of schizophrenia, 31 case-control articles were included in this meta-analysis. There were 23 studies with 40 bp VNTR (3246 cases and 3639 controls), 4 studies with rs40184 (2020 cases and 1674 controls), rs6347 (1317 cases and 1917 controls), rs403636 (2045 cases and 1704 controls), and rs2975226 (849 cases and 904 controls); and 3 studies with rs12516948 (1920 cases and 1569 controls), rs27072 (984 cases and 1015 controls), rs6869645 (1142 cases and 1082 controls), rs37022 (1168 cases and 1091 controls), rs464049 (1169cases and 1096 controls), rs2652511 (707 cases and 714 controls), and rs3756450 (1176 cases and 1096 controls). Pooled, subgroup, and sensitivity analyses were performed, and the results were visualized by forest and funnel plots. In the dominant genetic model, the genotype AA+AT of rs2975226 in the Indian population (Pz = 0, odds ratio [OR] = 3.245, 95% confidence interval [CI] = 1.806-5.831), TT of rs464049 (Pz = 0.002, OR = 1.389, 95% CI = 1.129-1.708), and TT of rs3756450 (Pz = 0.014, OR = 1.251, 95% CI = 1.047-1.495) might be risk factors for schizophrenia. Additionally, no other single nucleotide polymorphisms were observed. These results indicate that more functional studies are warranted.
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7
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Porter T, Burnham SC, Milicic L, Savage G, Maruff P, Sohrabi HR, Peretti M, Lim YY, Weinborn M, Ames D, Masters CL, Martins RN, Rainey-Smith S, Rowe CC, Salvado O, Groth D, Verdile G, Villemagne VL, Laws SM. COMT val158met is not associated with Aβ-amyloid and APOE ε4 related cognitive decline in cognitively normal older adults. IBRO Rep 2019; 6:147-152. [PMID: 31080907 PMCID: PMC6506436 DOI: 10.1016/j.ibror.2019.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/01/2019] [Indexed: 11/26/2022] Open
Abstract
The non-synonymous single nucleotide polymorphism (SNP), Val158Met within the Catechol-O-methyltransferase (COMT) gene has been associated with altered levels of cognition and memory performance in cognitively normal adults. This study aimed to investigate the independent and interactional effects of COMT Val158Met on cognitive performance. In particular, it was hypothesised that COMT Val158Met would modify the effect of neocortical Aβ-amyloid (Aβ) accumulation and carriage of the apolipoprotein E (APOE) ε4 allele on cognition in preclinical Alzheimer's disease (AD). In 598 cognitively normal older adults with known neocortical Aβ levels, linear mixed modelling revealed no significant independent or interactional associations between COMT Val158Met and cognitive decline. These findings do not support previous associations between COMT Val158Met and cognitive performance and suggest this variant does not influence Aβ-amyloid or APOE ε4 driven cognitive decline in a well characterised cohort of cognitively normal older adults.
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Affiliation(s)
- Tenielle Porter
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia
| | - Samantha C Burnham
- CSIRO Health and Biosecurity, Parkville 3052, Victoria, Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Lidija Milicic
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia
| | - Greg Savage
- ARC Centre of Excellence in Cognition and its Disorders, Department of Psychology, Macquarie University, North Ryde 2113, NSW, Australia
| | - Paul Maruff
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia.,CogState Ltd., Melbourne 3000, Victoria, Australia
| | - Hamid R Sohrabi
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Madeline Peretti
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia
| | - Yen Ying Lim
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia
| | - Michael Weinborn
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,School of Psychology, University of Western Australia, Crawley 6009, Western Australia, Australia
| | - David Ames
- Academic Unit for Psychiatry of Old Age, St. Vincent's Health, The University of Melbourne, Kew 3101, Victoria, Australia.,National Ageing Research Institute, Parkville 3052, Victoria, Australia
| | - Colin L Masters
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia
| | - Ralph N Martins
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Stephanie Rainey-Smith
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Christopher C Rowe
- Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg 3084, Victoria, Australia.,Department of Medicine, Austin Health, The University of Melbourne, Heidelberg 3084, Victoria, Australia
| | - Olivier Salvado
- CSIRO Health and Biosecurity/Australian e-Health Research Centre, Herston 4029, Queensland, Australia
| | - David Groth
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Western Australia, Australia
| | - Giuseppe Verdile
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Western Australia, Australia
| | - Victor L Villemagne
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia.,Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg 3084, Victoria, Australia.,Department of Medicine, Austin Health, The University of Melbourne, Heidelberg 3084, Victoria, Australia
| | - Simon M Laws
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Western Australia, Australia
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8
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Ye J, Ji F, Jiang D, Lin X, Chen G, Zhang W, Shan P, Zhang L, Zhuo C. Polymorphisms in Dopaminergic Genes in Schizophrenia and Their Implications in Motor Deficits and Antipsychotic Treatment. Front Neurosci 2019; 13:355. [PMID: 31057354 PMCID: PMC6479209 DOI: 10.3389/fnins.2019.00355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/28/2019] [Indexed: 12/14/2022] Open
Abstract
Dopaminergic system dysfunction is involved in schizophrenia (SCZ) pathogenesis and can mediate SCZ-related motor disorders. Recent studies have gradually revealed that SCZ susceptibility and the associated motor symptoms can be mediated by genetic factors, including dopaminergic genes. More importantly, polymorphisms in these genes are associated with both antipsychotic drug sensitivity and adverse effects. The study of genetic polymorphisms in the dopaminergic system may help to optimize individualized drug strategies for SCZ patients. This review summarizes the current progress about the involvement of the dopamine system in SCZ-associated motor disorders and the motor-related adverse effects after antipsychotic treatment, with a special focus on polymorphisms in dopaminergic genes. We hypothesize that the genetic profile of the dopaminergic system mediates both SCZ-associated motor deficits associated and antipsychotic drug-related adverse effects. The study of dopaminergic gene polymorphisms may help to predict drug efficacy and decrease adverse effects, thereby optimizing treatment strategies.
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Affiliation(s)
- Jiaen Ye
- Department of Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Feng Ji
- Department of Psychiatry, College of Mental Health, Jining Medical University, Jining, China
| | - Deguo Jiang
- Department of Psychiatric-Neuroimaging-Genetics and Morbidity Laboratory (PNGC-Lab), Nankai University Affiliated Tianjin Anding Hospital, Tianjin Mental Health Center, Mental Health Teaching Hospital, Tianjin Medical University, Tianjin, China
| | - Xiaodong Lin
- Department of Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Guangdong Chen
- Department of Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Wei Zhang
- Department of Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Peiwei Shan
- Department of Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Li Zhang
- GHM Institute of CNS Regeneration, Jinan University, Guangzhou, China
| | - Chuanjun Zhuo
- Department of Psychiatry, Wenzhou Seventh People's Hospital, Wenzhou, China.,Department of Psychiatry, College of Mental Health, Jining Medical University, Jining, China.,Department of Psychiatric-Neuroimaging-Genetics and Morbidity Laboratory (PNGC-Lab), Nankai University Affiliated Tianjin Anding Hospital, Tianjin Mental Health Center, Mental Health Teaching Hospital, Tianjin Medical University, Tianjin, China
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9
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Farias TL, Marinho V, Carvalho V, Rocha K, da Silva PRA, Silva F, Teles AS, Gupta D, Ribeiro P, Velasques B, Cagy M, Bastos VH, Silva-Junior F, Teixeira S. Methylphenidate modifies activity in the prefrontal and parietal cortex accelerating the time judgment. Neurol Sci 2019; 40:829-837. [PMID: 30693423 DOI: 10.1007/s10072-018-3699-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/31/2018] [Indexed: 12/30/2022]
Abstract
Methylphenidate produces its effects via actions on cortical areas involved with attention and working memory, which have a direct role in time estimation judgment tasks. In particular, the prefrontal and parietal cortex has been the target of several studies to understand the effect of methylphenidate on executive functions and time interval perception. However, it has not yet been studied whether acute administration of methylphenidate influences performance in time estimation task and the changes in alpha band absolute power in the prefrontal and parietal cortex. The current study investigates the influence of the acute use of methylphenidate in both performance and judgment in the time estimation interpretation through the alpha band absolute power activity in the prefrontal and parietal cortex. This is a double-blind, crossover study with a sample of 32 subjects under control (placebo) and experimental (methylphenidate) conditions with absolute alpha band power analysis during a time estimation task. We observed that methylphenidate does not influence task performance (p > 0.05), but it increases the time interval underestimation by over 7 s (p < 0.001) with a concomitant decrease in absolute alpha band power in the ventrolateral prefrontal cortex and dorsolateral prefrontal cortex and parietal cortex (p < 0.001). Acute use of methylphenidate increases the time interval underestimation, consistent with reduced accuracy of the internal clock mechanisms. Furthermore, acute use of methylphenidate influences the absolute alpha band power over the dorsolateral prefrontal cortex, ventrolateral prefrontal cortex, and parietal cortex.
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Affiliation(s)
- Tiago Lopes Farias
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil.
| | - Victor Marinho
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil. .,The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil.
| | - Valécia Carvalho
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil.,The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
| | - Kaline Rocha
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil.,The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
| | - Paulo Ramiler Alves da Silva
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil.,Masters Programs in Biotechnology, Federal University of Piauí, Parnaíba, Brazil
| | - Francisca Silva
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil
| | - Ariel Soares Teles
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil
| | - Daya Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - Pedro Ribeiro
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruna Velasques
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mauricio Cagy
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Victor Hugo Bastos
- Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Fernando Silva-Junior
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil
| | - Silmar Teixeira
- Neuro-innovation Technology and Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião, 2819, Bairro São Benedito, Parnaíba, Piauí, CEP: 64202-020, Brazil.,The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil.,Masters Programs in Biotechnology, Federal University of Piauí, Parnaíba, Brazil
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10
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Klaus K, Pennington K. Dopamine and Working Memory: Genetic Variation, Stress and Implications for Mental Health. Curr Top Behav Neurosci 2019; 41:369-391. [PMID: 31502081 DOI: 10.1007/7854_2019_113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
At the molecular level, the neurotransmitter dopamine (DA) is a key regulatory component of executive function in the prefrontal cortex (PFC) and dysfunction in dopaminergic (DAergic) circuitry has been shown to result in impaired working memory (WM). Research has identified multiple common genetic variants suggested to impact on the DA system functionally and also behaviourally to alter WM task performance. In addition, environmental stressors impact on DAergic tone, and this may be one mechanism by which stressors confer vulnerability to the development of neuropsychiatric conditions. This chapter aims to evaluate the impact of key DAergic gene variants suggested to impact on both synaptic DA levels (COMT, DAT1, DBH, MAOA) and DA receptor function (ANKK1, DRD2, DRD4) in terms of their influence on visuospatial WM. The role of stressors and interaction with the genetic background is discussed in addition to discussion around some of the implications for precision psychiatry. This and future work in this area aim to disentangle the neural mechanisms underlying susceptibility to stress and their impact and relationship with cognitive processes known to influence mental health vulnerability.
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Affiliation(s)
- Kristel Klaus
- MRC Brain and Cognition Unit, University of Cambridge, Cambridge, UK
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11
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Rocha K, Marinho V, Magalhães F, Ribeiro J, Oliveira T, Gupta DS, Chaves F, Velasques B, Ribeiro P, Cagy M, Lima G, Teixeira S. Low-frequency rTMS stimulation over superior parietal cortex medially improves time reproduction and increases the right dorsolateral prefrontal cortex predominance. Int J Neurosci 2018; 129:523-533. [DOI: 10.1080/00207454.2018.1476351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Kaline Rocha
- Neuro-innovation Technology & Brain Mapping Laboratory,, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Victor Marinho
- Neuro-innovation Technology & Brain Mapping Laboratory,, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Francisco Magalhães
- Neuro-innovation Technology & Brain Mapping Laboratory,, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Jéssica Ribeiro
- Neuro-innovation Technology & Brain Mapping Laboratory,, Federal University of Piauí, Parnaíba, Brazil
| | - Thomaz Oliveira
- Neuro-innovation Technology & Brain Mapping Laboratory,, Federal University of Piauí, Parnaíba, Brazil
| | - Daya S. Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - Fernanda Chaves
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruna Velasques
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pedro Ribeiro
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mauricio Cagy
- Biomedical Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gildário Lima
- Neurophysics Applied Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Silmar Teixeira
- Neuro-innovation Technology & Brain Mapping Laboratory,, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
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12
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The BDNF Val66Met Polymorphism Promotes Changes in the Neuronal Integrity and Alters the Time Perception. J Mol Neurosci 2018; 67:82-88. [DOI: 10.1007/s12031-018-1212-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/11/2018] [Indexed: 10/27/2022]
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13
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Association between catechol-O-methyltransferase genetic variation and functional connectivity in patients with first-episode schizophrenia. Schizophr Res 2018; 199:214-220. [PMID: 29730044 DOI: 10.1016/j.schres.2018.04.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 02/08/2023]
Abstract
Dopamine in the prefrontal cortex (PFC) plays an important role in cognitive performance and regulates by catechol-O-methyltransferase (COMT) expression. To clarify the effect of COMT genotype on cognitive function in patients with schizophrenia, we performed DNA genotyping, cognitive evaluations, and functional magnetic resonance imaging (fMRI) in antipsychotic-naïve patients with first-episode schizophrenia (FES) and matched healthy control subjects. We found that all cognitive domains were impaired in patients with FES compared with healthy subjects. Moreover, COMT genotype influenced the verbal learning performance in healthy subjects, but not in patients with FES. Resting-state fMRI data revealed that patients with FES exhibited higher functional connectivity degree centrality in the medial PFC and lower degree centrality in the parietal-occipital junction than healthy subjects. Furthermore, patients with FES who were COMT Met allele carriers had higher degree centrality in the medial PFC than those with the Val/Val genotype. In contrast, in healthy controls, Met allele carriers exhibited higher degree centrality than healthy controls with the Val/Val genotype in the left hippocampus and left amygdala. There was a negative correlation between the degree centrality value in medial PFC and score of the Hopkins Verbal Learning Test-Revised (HVLT-R) in FES patients with the Met allele. Our findings suggest that COMT genotype differentially influences pathways related to cognitive performance in patients with FES versus healthy individuals, providing an important insight into schizophrenia pathophysiology.
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14
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Marinho V, Oliveira T, Bandeira J, Pinto GR, Gomes A, Lima V, Magalhães F, Rocha K, Ayres C, Carvalho V, Velasques B, Ribeiro P, Orsini M, Bastos VH, Gupta D, Teixeira S. Genetic influence alters the brain synchronism in perception and timing. J Biomed Sci 2018; 25:61. [PMID: 30086746 PMCID: PMC6080374 DOI: 10.1186/s12929-018-0463-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 07/31/2018] [Indexed: 12/19/2022] Open
Abstract
Background Studies at the molecular level aim to integrate genetic and neurobiological data to provide an increasingly detailed understanding of phenotypes related to the ability in time perception. Main Text This study suggests that the polymorphisms genetic SLC6A4 5-HTTLPR, 5HTR2A T102C, DRD2/ANKK1-Taq1A, SLC6A3 3’-UTR VNTR, COMT Val158Met, CLOCK genes and GABRB2 A/C as modification factor at neurochemical levels associated with several neurofunctional aspects, modifying the circadian rhythm and built-in cognitive functions in the timing. We conducted a literature review with 102 studies that met inclusion criteria to synthesize findings on genetic polymorphisms and their influence on the timing. Conclusion The findings suggest an association of genetic polymorphisms on behavioral aspects related in timing. However, order to confirm the paradigm of association in the timing as a function of the molecular level, still need to be addressed future research.
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Affiliation(s)
- Victor Marinho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil. .,Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil. .,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil.
| | - Thomaz Oliveira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil.,Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Juliete Bandeira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil
| | - Giovanny R Pinto
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Anderson Gomes
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Valéria Lima
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Francisco Magalhães
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Kaline Rocha
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Carla Ayres
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil
| | - Valécia Carvalho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Bruna Velasques
- Brain Mapping and Sensory Motor Integration Laboratory, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pedro Ribeiro
- Brain Mapping and Sensory Motor Integration Laboratory, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marco Orsini
- Master's Program in Local Development Program, University Center Augusto Motta - UNISUAM, Rio de Janeiro, Brazil and Health Sciences Applied - Vassouras University, Rio de Janeiro, Brazil
| | - Victor Hugo Bastos
- Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Daya Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - Silmar Teixeira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Av. São Sebastião n° 2819 - Nossa Sra. de Fátima -, Parnaíba, PI, CEP 64202-020, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
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15
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Salatino-Oliveira A, Rohde LA, Hutz MH. The dopamine transporter role in psychiatric phenotypes. Am J Med Genet B Neuropsychiatr Genet 2018; 177:211-231. [PMID: 28766921 DOI: 10.1002/ajmg.b.32578] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 06/26/2017] [Accepted: 07/18/2017] [Indexed: 01/06/2023]
Abstract
The dopamine transporter (DAT) is one of the most relevant and investigated neurotransmitter transporters. DAT is a plasma membrane protein which plays a homeostatic role, controlling both extracellular and intracellular concentrations of dopamine (DA). Since unbalanced DA levels are known to be involved in numerous mental disorders, a wealth of investigations has provided valuable insights concerning DAT role into normal brain functioning and pathological processes. Briefly, this extensive but non-systematic review discusses what is recently known about the role of SLC6A3 gene which encodes the dopamine transporter in psychiatric phenotypes. DAT protein, SLC6A3 gene, animal models, neuropsychology, and neuroimaging investigations are also concisely discussed. To conclude, current challenges are reviewed in order to provide perspectives for future studies.
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Affiliation(s)
| | - Luis A Rohde
- Division of Child and Adolescent Psychiatry, Hospital de Clinicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Institute for Developmental Psychiatry for Children and Adolescents, São Paulo, Brazil
| | - Mara H Hutz
- Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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16
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Abstract
Accumulating evidence suggests that many classes of DNA repeats exhibit attributes that distinguish them from other genetic variants, including the fact that they are more liable to mutation; this enables them to mediate genetic plasticity. The expansion of tandem repeats, particularly of short tandem repeats, can cause a range of disorders (including Huntington disease, various ataxias, motor neuron disease, frontotemporal dementia, fragile X syndrome and other neurological disorders), and emerging data suggest that tandem repeat polymorphisms (TRPs) can also regulate gene expression in healthy individuals. TRPs in human genomes may also contribute to the missing heritability of polygenic disorders. A better understanding of tandem repeats and their associated repeatome, as well as their capacity for genetic plasticity via both germline and somatic mutations, is needed to transform our understanding of the role of TRPs in health and disease.
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Affiliation(s)
- Anthony J Hannan
- Florey Institute of Neuroscience and Mental Health, University of Melbourne.,Department of Anatomy and Neuroscience, University of Melbourne, Parkville, Victoria, Australia
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17
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González-Giraldo Y, González-Reyes RE, Mueller ST, Piper BJ, Adan A, Forero DA. Situation Awareness Performance in Healthy Young Adults Is Associated With a Serotonin Transporter Gene Polymorphism. Psychol Rep 2018; 121:877-891. [PMID: 29298559 DOI: 10.1177/0033294117740136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Situation awareness (SA) is defined in three levels: SA1 is the perception of the elements in a specific context, SA2 is the comprehension of their meaning, and SA3 is the projection of their status. Purpose To analyze the possible association of a genetic polymorphism in the serotonin transporter ( SLC6A4) gene and performance on the Situational Awareness test (SAtest). Methods SAtest was applied to a sample of 230 healthy Colombian subjects, using the Psychology Experiment Building Language platform and a functional polymorphism in the SLC6A4 gene was genotyped by polymerase chain reaction. Results In the SA1 level, s/s genotype carriers had worse accuracy, in comparison with s/l and l/l genotypes. At SA2 level, l/l genotype carriers had better accuracy than s/s and s/l individuals and that in the SA3 level, l/l carriers also had better accuracy. These associations were significant after correction for multiple testing. Conclusions It is possible that l/l carriers have a better ability to perceive and focus their attention on the elements of their environment and to have the capacity to understand and predict what will happen with those elements. This is the first genetic study of SA performance in healthy participants. Additional investigations of other genes could contribute to the understanding of the molecular correlates of SA in healthy subjects and in neuropsychiatric patients.
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Affiliation(s)
- Yeimy González-Giraldo
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Rodrigo E González-Reyes
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Shane T Mueller
- Department of Cognitive and Learning Sciences, Michigan Technological University, Houghton, MI, USA
| | | | - Ana Adan
- Department of Psychiatry and Clinical Psychobiology, University of Barcelona, Barcelona, Spain; Institute for Brain, Cognition and Behavior (IR3C), Barcelona, Spain
| | - Diego A Forero
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
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18
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Long H, Liu B, Wang C, Zhang X, Li J, Yu C, Jiang T. Interaction effect between 5-HTTLPR and HTR1A rs6295 polymorphisms on the frontoparietal network. Neuroscience 2017; 362:239-247. [PMID: 28793232 DOI: 10.1016/j.neuroscience.2017.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 10/19/2022]
Abstract
Previous studies have shown a close relationship between the serotonin system and working memory (WM), but the neural mechanism for the role of the serotonin system on the WM is unclear. The frontoparietal network is involved in WM and is associated with the serotonin system. Therefore, this study investigated the interaction effect of the serotonin transporter-linked polymorphic region (5-HTTLPR) and the polymorphism in the serotonin 1A receptor gene (rs6295) on the frontoparietal network obtained from the independent component analysis in a large, young Chinese sample population. The current study found a significant interaction effect of 5-HTTLPR and rs6295 on the connectivity within the right frontoparietal network, specifically in the middle frontal gyrus and inferior parietal lobule. Moreover, the mean connectivity in the right inferior parietal lobule was positively correlated with WM performance. These brain network analysis findings could provide a new perspective on the neural mechanisms of gene-gene interactions and on individual differences in cognitive functions.
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Affiliation(s)
- Haixia Long
- College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China; Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Bing Liu
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Chao Wang
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiaolong Zhang
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Jin Li
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Chunshui Yu
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin 300052, China.
| | - Tianzi Jiang
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China; Queensland Brain Institute, University of Queensland, Brisbane, QLD 4072, Australia.
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19
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Association between the serotonin transporter gene polymorphism and verbal learning in older adults is moderated by gender. Transl Psychiatry 2017; 7:e1144. [PMID: 28585929 PMCID: PMC5537635 DOI: 10.1038/tp.2017.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 01/29/2017] [Accepted: 02/26/2017] [Indexed: 11/09/2022] Open
Abstract
The S allele of the functional 5-HTTLPR polymorphism has previously been associated with reductions in memory function. Given the change in function of the serotonergic system in older adults, and the functional consequences of memory decline in this age group, further investigation into the impact of 5-HTTLPR in healthy older adults is required. This investigation examined the effect of 5-HTTLPR variants (S carriers versus L/L homozygotes) on verbal and visual episodic memory in 438 healthy older adults participating in the Tasmanian Healthy Brain Project (age range 50-79 years, M=60.35, s.d.=6.75). Direct effects of 5-HTTLPR on memory processes, in addition to indirect effects through interaction with age and gender, were assessed. Although no direct effects of 5-HTTLPR on memory processes were identified, our results indicated that gender significantly moderated the impact that 5-HTTLPR variants exerted on the relationship between age and verbal episodic memory function as assessed by the Rey Auditory Verbal Learning Test. No significant direct or indirect effects were identified in relation to visual memory performance. Overall, this investigation found evidence to suggest that 5-HTTLPR genotype affects the association of age and verbal episodic memory for males and females differently, with the predicted negative effect of S carriage present in males but not females. Such findings indicate a gender-dependent role for 5-HTTLPR in the verbal episodic memory system of healthy older adults.
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20
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Zai G, Robbins TW, Sahakian BJ, Kennedy JL. A review of molecular genetic studies of neurocognitive deficits in schizophrenia. Neurosci Biobehav Rev 2017; 72:50-67. [DOI: 10.1016/j.neubiorev.2016.10.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 10/17/2016] [Accepted: 10/27/2016] [Indexed: 02/08/2023]
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21
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Zilles D, Lewandowski M, Vieker H, Henseler I, Diekhof E, Melcher T, Keil M, Gruber O. Gender Differences in Verbal and Visuospatial Working Memory Performance and Networks. Neuropsychobiology 2016; 73:52-63. [PMID: 26859775 DOI: 10.1159/000443174] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 11/29/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Working memory (WM) has been a matter of intensive basic and clinical research for some decades now. The investigation of WM function and dysfunction may facilitate the understanding of both physiological and pathological processes in the human brain. Though WM paradigms are widely used in neuroscientific and psychiatric research, conclusive knowledge about potential moderating variables such as gender is still missing. METHODS We used functional magnetic resonance imaging to investigate the effects of gender on verbal and visuospatial WM maintenance tasks in a large and homogeneous sample of young healthy subjects. RESULTS We found significant gender effects on both the behavioral and neurofunctional level. Females exhibited disadvantages with a small effect size in both WM domains accompanied by stronger activations in a set of brain regions (including bilateral substantia nigra/ventral tegmental area and right Broca's area) independent of WM modality. As load and task difficulty effects have been shown for some of these regions, the stronger activations may reflect a slightly lower capacity of both WM domains in females. Males showed stronger bilateral intraparietal activations next to the precuneus which were specific for the visuospatial WM task. Activity in this specific region may be associated with visuospatial short-term memory capacity. CONCLUSION These findings provide evidence for a slightly lower capacity in both WM modalities in females.
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Affiliation(s)
- David Zilles
- Centre for Translational Research in Systems Neuroscience and Clinical Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center, Goettingen, Germany
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22
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Sase A, Aher YD, Saroja SR, Ganesan MK, Sase S, Holy M, Höger H, Bakulev V, Ecker GF, Langer T, Sitte HH, Leban J, Lubec G. A heterocyclic compound CE-103 inhibits dopamine reuptake and modulates dopamine transporter and dopamine D1-D3 containing receptor complexes. Neuropharmacology 2016; 102:186-96. [DOI: 10.1016/j.neuropharm.2015.07.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 07/29/2015] [Accepted: 07/31/2015] [Indexed: 01/11/2023]
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23
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Penttilä J, Hirvonen J, Tuominen L, Lumme V, Ilonen T, Någren K, Hietala J. Verbal memory and 5-HT1A receptors in healthy volunteers--A PET study with [carbonyl-(11)C]WAY-100635. Eur Neuropsychopharmacol 2016; 26:570-7. [PMID: 26775837 DOI: 10.1016/j.euroneuro.2015.12.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 12/05/2015] [Accepted: 12/12/2015] [Indexed: 11/20/2022]
Abstract
The serotonin 5-HT1A receptor is a putative drug development target in disorders with cognitive and in particular memory deficits. However, previous human positron emission tomography (PET) studies on 5-HT1A receptor binding and memory functions have yielded discrepant results. We explored the association between verbal memory and 5-HT1A receptor binding in 24 healthy subjects (14 male, 10 female, aged 18-41 years). The cognitive tests included the Wechsler Memory Scale-Revised (WMS-R), Wechsler Adult Intelligence Scale-Revised (WAIS-R) and Wisconsin Card Sorting Test (WCST). 5-HT1A receptor binding was measured with PET and the radioligand [carbonyl-(11)C]WAY-100635, which was quantified with the gold standard method based on kinetic modeling using arterial blood samples. We found that global 5-HT1A receptor binding was positively correlated with measures of verbal memory, such that subjects who had higher receptor binding tended to have better verbal memory than subjects who had lower receptor binding. Regional analyses suggested significant correlations in multiple neocortical brain regions and the raphe nuclei. We did not find significant correlations between 5-HT1A receptor binding and executive functions as measured with WCST. We conclude that neocortical as well as raphe 5-HT1A receptors are involved in verbal memory function in man.
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Affiliation(s)
- Jani Penttilä
- Department of Adolescent Psychiatry, Päijät-Häme Central Hospital, Lahti, Finland
| | - Jussi Hirvonen
- Department of Radiology, University of Turku, Turku, Finland; Turku PET Centre, University of Turku and Turku University Central Hospital, Turku, Finland
| | - Lauri Tuominen
- Turku PET Centre, University of Turku and Turku University Central Hospital, Turku, Finland; Department of Psychiatry, University of Turku, Turku, Finland
| | - Ville Lumme
- Department of Psychiatry, University of Turku, Turku, Finland
| | - Tuula Ilonen
- Department of Psychiatry, University of Turku, Turku, Finland
| | - Kjell Någren
- Turku PET Centre, University of Turku and Turku University Central Hospital, Turku, Finland
| | - Jarmo Hietala
- Turku PET Centre, University of Turku and Turku University Central Hospital, Turku, Finland; Department of Psychiatry, University of Turku, Turku, Finland.
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24
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Schwarz E, Tost H, Meyer-Lindenberg A. Working memory genetics in schizophrenia and related disorders: An RDoC perspective. Am J Med Genet B Neuropsychiatr Genet 2016; 171B:121-31. [PMID: 26365198 DOI: 10.1002/ajmg.b.32353] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/08/2015] [Indexed: 12/29/2022]
Abstract
Improved classification of mental disorders through neurobiological measures will require a set of traits that map to transdiagnostic subgroups of patients and align with heritable, core psychopathological processes at the center of the disorders of interest. A promising candidate is working memory (WM) function, for which deficits have been reported across multiple diagnostic entities including schizophrenia, bipolar disorder, ADHD, autism, and major depressive disorder. Here we review genetic working memory associations and their brain functional correlates from the perspective of identifying patient subgroups across conventional diagnostic boundaries, explore the utility of multimodal investigations integrating functional information at the neural systems level and explore potential limitations as well as future directions for research.
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Affiliation(s)
- Emanuel Schwarz
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Heike Tost
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Andreas Meyer-Lindenberg
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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25
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Havranek MM, Vonmoos M, Müller CP, Büetiger JR, Tasiudi E, Hulka LM, Preller KH, Mössner R, Grünblatt E, Seifritz E, Quednow BB. Serotonin Transporter and Tryptophan Hydroxylase Gene Variations Mediate Working Memory Deficits of Cocaine Users. Neuropsychopharmacology 2015; 40:2929-37. [PMID: 26013962 PMCID: PMC4864628 DOI: 10.1038/npp.2015.146] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/05/2015] [Accepted: 05/18/2015] [Indexed: 12/31/2022]
Abstract
Cocaine users consistently develop working memory (WM) impairments but the mediating molecular mechanisms are unknown so far. Recent evidence suggests that the serotonin (5-HT) system is altered by chronic cocaine use, while also being involved in WM processing. Thus, we investigated the effects of genetic variations impacting 5-HT activity and of peripheral 5-HT transporter (5-HTT) mRNA expression on WM performance in cocaine users and stimulant naive controls. Two hundred twenty participants (126 cocaine users, 94 controls) were assessed with visuospatial, spatial, and verbal WM tasks, genotyped for the length polymorphism in the promoter region of the 5-HTT (5-HTTLPR), the variable number of tandem repeats in the second intron of the 5-HTT (VNTR In2), two single-nucleotide polymorphisms (rs4570625 and rs1386497) in the tryptophan hydroxylase-2 (TPH2) gene and quantified for peripheral 5-HTT mRNA expression in whole-blood samples. Several significant gene × environment interactions between 5-HT genotypes and cocaine use on WM emerged: in cocaine users, the long/long (5-HTTLPR), 9+10/9+10 (VNTR In2) and C/C (TPH2 rs1386497) genotypes were risk alleles for WM impairments, whereas in healthy controls these polymorphisms were associated with improved WM performance. Analogously, high 5-HTT mRNA levels were associated with worse executive WM performance in cocaine users but with increased performance in controls. These gene × environment interactions suggest that the 5-HT system has an important role in the development of cognitive deficits in chronic cocaine users. Hence, pharmacological compounds targeting 5-HT neurotransmission might be promising for the treatment of cognitive deficits in cocaine dependence.
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Affiliation(s)
- Michael M Havranek
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland
| | - Matthias Vonmoos
- Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland
| | - Christian P Müller
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Jessica R Büetiger
- Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland
| | - Eve Tasiudi
- University Clinic for Child and Adolescent Psychiatry, University of Zurich, Zurich, Switzerland
| | - Lea M Hulka
- Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland
| | - Katrin H Preller
- Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland
| | - Rainald Mössner
- Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany
| | - Edna Grünblatt
- University Clinic for Child and Adolescent Psychiatry, University of Zurich, Zurich, Switzerland,Neuroscience Center Zurich, University and ETH Zurich, Zurich, Switzerland
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland,Neuroscience Center Zurich, University and ETH Zurich, Zurich, Switzerland
| | - Boris B Quednow
- Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Zurich, Switzerland,Neuroscience Center Zurich, University and ETH Zurich, Zurich, Switzerland,Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital of the University of Zurich, Lenggstrasse 31, CH-8032 Zurich, Switzerland, Tel: +41 44 384 2777, Fax: +41 44 384 3396, E-mail:
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26
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Ettinger U, Merten N, Kambeitz J. Meta-analysis of the association of the SLC6A3 3'-UTR VNTR with cognition. Neurosci Biobehav Rev 2015; 60:72-81. [PMID: 26593110 DOI: 10.1016/j.neubiorev.2015.09.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/04/2015] [Accepted: 09/24/2015] [Indexed: 12/19/2022]
Abstract
The gene coding for the dopamine transporter (DAT), SLC6A3, contains a 40-base pair variable number of tandem repeats (VNTR) polymorphism (rs28363170) in its 3' untranslated region. This VNTR has been associated with attention deficit hyperactivity disorder (ADHD) and has been investigated in relation to cognition and brain function. Here, we report the results of a comprehensive meta-analysis with meta-regression examining the association of the VNTR with different domains of cognition in healthy adults. We extracted data from 28 independent studies and carried out meta-analyses for associations with working memory (k=10 samples, N=1193 subjects), inhibition (k=8 samples, N=829 subjects), executive functions including inhibition (k=10 samples, N=984 subjects), attention (k=6 samples, N=742 subjects) and declarative long-term memory (k=5 samples, N=251 subjects). None of the investigated dimensions showed significant associations with the VNTR (all p>0.26). Meta-regression including year of publication, gender, age, ethnicity and percentage of 10R-homozygotes similarly did not attain significance. We conclude that there is no evidence that rs28363170 may be a significant predictor of cognitive function in healthy adults.
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Affiliation(s)
- Ulrich Ettinger
- Department of Psychology, University of Bonn, Bonn, Germany.
| | | | - Joseph Kambeitz
- Department of Psychiatry, University of Munich, Munich, Germany
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27
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Garrett A, Gupta S, Reiss AL, Waring J, Sudheimer K, Anker L, Sosa N, Hallmayer JF, O'Hara R. Impact of 5-HTTLPR on hippocampal subregional activation in older adults. Transl Psychiatry 2015; 5:e639. [PMID: 26393485 PMCID: PMC5068801 DOI: 10.1038/tp.2015.131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 04/23/2015] [Indexed: 11/29/2022] Open
Abstract
Studies have shown that a functional polymorphism of the serotonin transporter gene (5-HTTLPR) impacts performance on memory-related tasks and the hippocampal structures that subserve these tasks. The short (s) allele of 5-HTTLPR has been linked to greater susceptibility for impaired memory and smaller hippocampal volume compared to the long allele (l). However, previous studies have not examined the associations between 5-HTTLPR allele and activation in subregions of the hippocampus. In this study, we used functional magnetic resonance imaging (fMRI) to measure activation in hippocampal and temporal lobe subregions in 36 elderly non-clinical participants performing a face-name encoding and recognition task. Although there were no significant differences in task performance between s allele carriers and l homozygotes, right CA1 and right parahippocampal activation during recognition errors was significantly greater in individuals bearing the s allele. In an exploratory analysis, we determined that these effects were more pronounced in s allele carriers with the apolipoprotein ɛ4 allele. Our results suggest that older individuals with the s allele inefficiently allocate neural resources while making errors in recognizing face-name associations, which could negatively impact memory performance during more challenging tasks.
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Affiliation(s)
- A Garrett
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Center for Interdisciplinary Brain Sciences Research, Stanford University School of Medicine, Stanford, CA, USA
| | - S Gupta
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - A L Reiss
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Center for Interdisciplinary Brain Sciences Research, Stanford University School of Medicine, Stanford, CA, USA
| | - J Waring
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Sierra Pacific Mental Illness, Research, Education and Clinical Center, VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - K Sudheimer
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Sierra Pacific Mental Illness, Research, Education and Clinical Center, VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - L Anker
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Sierra Pacific Mental Illness, Research, Education and Clinical Center, VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - N Sosa
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - J F Hallmayer
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Sierra Pacific Mental Illness, Research, Education and Clinical Center, VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - R O'Hara
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA,Sierra Pacific Mental Illness, Research, Education and Clinical Center, VA Palo Alto Health Care System, Palo Alto, CA, USA,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA 94305-5485, USA. E-mail:
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28
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Thissen AJAM, Bralten J, Rommelse NNJ, Arias-Vasquez A, Greven CU, Heslenfeld D, Luman M, Oosterlaan J, Hoekstra PJ, Hartman C, Franke B, Buitelaar JK. The role of age in association analyses of ADHD and related neurocognitive functioning: A proof of concept for dopaminergic and serotonergic genes. Am J Med Genet B Neuropsychiatr Genet 2015; 168:471-479. [PMID: 25586935 DOI: 10.1002/ajmg.b.32290] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 12/01/2014] [Indexed: 11/08/2022]
Abstract
Elucidating genetic mechanisms involved in Attention-Deficit/Hyperactivity Disorder (ADHD) has been challenging. Relatively unexplored is the fact that genetic mechanisms can differ with age. The current study explored the association between dopaminergic and serotonergic genes, ADHD symptoms, and neurocognitive functioning in relation to age. Associations of three genetic ADHD risk factors, DAT1, DRD4, and 5-HTT with symptoms and six neurocognitive measures were explored in two samples of the NeuroIMAGE study: 756 children, adolescents, and young adults with ADHD, their siblings, and controls (M age 17 years, SD 3.2), and 393 parents with and without ADHD (M age 48 years, SD 4.8). Association analyses were performed in both samples, and effects were compared to address dichotomous age effects. Gene*age interactions were examined to address continuous age effects. Moderating effects of age were found for DRD4-7R carriership and ADHD symptoms in the adult group only; in the adolescents the 5-HTT LL genotype was differentially associated with inhibition and with motor timing at different ages, and to inhibition in adults; DAT1 10-6 haplotype carriership showed differential working memory performance depending on age. None of our effects survived correction for multiple comparisons. Our results are preliminary, but may point to differential genotype-phenotype associations at different ages. This can be seen as a proof of concept for the importance of age in dopaminergic and serotonergic genetic association analyses. Our findings are consistent with the idea that genetic and neurocognitive mechanisms underlying ADHD may change throughout life. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Andrieke J A M Thissen
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, The Netherlands.,Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, The Netherlands
| | - Janita Bralten
- Department of Human Genetics, Radboud university medical center, Nijmegen, The Netherlands.,Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud university medical center, Nijmegen, The Netherlands
| | - Nanda N J Rommelse
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, The Netherlands.,Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, The Netherlands
| | - Alejandro Arias-Vasquez
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, The Netherlands.,Department of Human Genetics, Radboud university medical center, Nijmegen, The Netherlands
| | - Corina U Greven
- Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, The Netherlands.,Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud university medical center, Nijmegen, The Netherlands.,King's College London, Institute of Psychiatry, United Kingdom
| | - Dirk Heslenfeld
- Department of Psychology, VU University, Amsterdam, The Netherlands
| | - Marjolein Luman
- Department of Psychology, VU University, Amsterdam, The Netherlands
| | - Jaap Oosterlaan
- Department of Psychology, VU University, Amsterdam, The Netherlands
| | - Pieter J Hoekstra
- Department of Psychiatry, University Medical Centre Groningen, University of Groningen, The Netherlands
| | - Catharina Hartman
- Department of Psychiatry, University Medical Centre Groningen, University of Groningen, The Netherlands
| | - Barbara Franke
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, The Netherlands.,Department of Human Genetics, Radboud university medical center, Nijmegen, The Netherlands
| | - Jan K Buitelaar
- Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, The Netherlands.,Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud university medical center, Nijmegen, The Netherlands
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29
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Arbune A, Lin SH, Chen KC, Lee IH, Chen PS, Yang YK. Positive association between neuroticism and working memory in healthy female volunteers. Int J Psychiatry Clin Pract 2015; 19:75-8. [PMID: 24994479 DOI: 10.3109/13651501.2014.940050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Neuroticism is an important personality trait that is often associated with mental disorders. It has been reported that lower levels of neuroticism are associated with better cognitive function later in life; however, the concurrent association is unclear. METHODS A total of 184 healthy participants, 84 males and 100 females, completed the Wechsler Memory Scale-Revised version and the 24-item neuroticism subscale of the Maudsley personality inventory. RESULTS The neuroticism score was found to be positively associated with verbal memory, general memory, and delayed recall, particularly among healthy females, independent of the effect of age. CONCLUSION The mechanisms of this association remain to be elucidated. Clinicians should pay additional attention to this phenomenon.
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Affiliation(s)
- Anca Arbune
- "Carol Davila" University of Medicine and Pharmacy , Bucharest , Romania
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30
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Andre K, Kampman O, Illi A, Viikki M, Setälä-Soikkeli E, Mononen N, Lehtimäki T, Haraldsson S, Koivisto PA, Leinonen E. SERT and NET polymorphisms, temperament and antidepressant response. Nord J Psychiatry 2015; 69:531-8. [PMID: 25739526 DOI: 10.3109/08039488.2015.1012554] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The genetic variations in norepinephrine transporter (NET) and serotonin transporter (SERT) genes have been associated with personality traits, several psychiatric disorders and the efficacy of antidepressant treatment. AIMS We investigated the separate effects and possible interactions between NET T-182C (rs2242446) and SERT 5-HTTLPR (rs4795541) polymorphisms on selective serotonin reuptake inhibitors (SSRI) treatment response and temperamental traits assessed by the Temperament and Character Inventory (TCI) in a clinical sample of subjects with major depressive disorder (MDD). METHODS Our sample of 97 patients with major depression completed the 107-item TCI temperament questionnaire (version IX) at the initial assessment of the study and after 6 weeks of follow-up. All subjects received selective SSRI medications. Temperament dimension scores at baseline ( 1 ) and endpoint ( 2 ) during antidepressant treatment were analyzed between NET and SERT genotypes. RESULTS SS-genotype of 5-HTTLPR was associated with higher baseline Persistence scores than SL- or LL-genotype. A corresponding but weaker association was found at endpoint. No differences were found between 5-HTTLPR genotypes and other temperament dimensions and 5-HTTLPR genotypes had no effect on treatment response. CONCLUSIONS Our results suggest that the SS-genotype of 5-HTTLPR is associated with Persistence scores in patients with MDD. Higher Persistence could be viewed as a negative trait when recovering from stress and its association with short and "weaker" S-allele may be related to less efficient serotonin neurotransmission, possibly resulting in less effective coping strategies on a behavioral level.
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Affiliation(s)
- Kadri Andre
- a Kadri Andre M.D., School of Medicine, University of Tampere , Finland
| | - Olli Kampman
- b Olli Kampman M.D., Ph.D., School of Medicine, University of Tampere , Tampere , and Department of Psychiatry , Seinäjoki Hospital District , Seinäjoki , Finland
| | - Ari Illi
- c Ari Illi M.D., Ph.D., School of Medicine, University of Tampere , Finland
| | - Merja Viikki
- d Merja Viikki, M.D., Ph.D., School of Medicine, University of Tampere , Tampere , and Tampere City Mental Health Care Centre , Tampere , Finland
| | - Eija Setälä-Soikkeli
- e Eija Setälä-Soikkeli, M.D., School of Medicine, University of Tampere , Tampere , and Department of Psychiatry , Kanta-Häme Hospital District , Hämeenlinna , Finland
| | - Nina Mononen
- f Nina Mononen, Ph.D., School of Medicine, University of Tampere; Department of Clinical Chemistry , Pirkanmaa Hospital District; and Fimlab Laboratories , Tampere , Finland
| | - Terho Lehtimäki
- g Terho Lehtimäki M.D., Ph.D., School of Medicine, University of Tampere , Tampere , Department of Clinical Chemistry , Pirkanmaa Hospital District, and Fimlab Laboratories , Tampere , Finland
| | - Susann Haraldsson
- h Susann Haraldsson, Department of Medical Biosciences , Umeå University , Umeå , Sweden
| | - Pasi A Koivisto
- i Pasi A. Koivisto, Department of Neurology , Seinäjoki Hospital District , Seinäjoki , Finland
| | - Esa Leinonen
- j Esa Leinonen M.D., Ph.D., School of Medicine, University of Tampere , Tampere , and Department of Psychiatry , Tampere University Hospital , Tampere , Finland
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31
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Yen JY, Tu HP, Chen CS, Yen CF, Long CY, Ko CH. The effect of serotonin 1A receptor polymorphism on the cognitive function of premenstrual dysphoric disorder. Eur Arch Psychiatry Clin Neurosci 2014; 264:729-39. [PMID: 24158751 DOI: 10.1007/s00406-013-0466-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 10/16/2013] [Indexed: 11/25/2022]
Abstract
Estrogen and serotonin play vital roles in the mechanism of premenstrual dysphoric disorder (PMDD). Cognitive deficit in the premenstrual phase contributes to impaired life function among women with PMDD. The aim of this study was to evaluate the difficulties in cognitive control and working memory (WM) in PMDD and to explore the effects of gonadotropic hormone and polymorphism of serotonin 1A receptor (HTR1A; rs6295) on cognitive deficit in PMDD. Women with PMDD completed diagnostic interviewing, questionnaire assessment, the Go/Nogo task, 2-back and 3-back tasks, and gonadotropic hormone analysis in the premenstrual and follicular phases. Further, they were followed up for two menstrual cycles to confirm two consecutive symptomatic cycles. A total of 59 subjects with PMDD and 74 controls completed all evaluation, fulfilled the criteria, and entered into the final analysis. The results demonstrated cognitive control and WM decline in the premenstrual among women with PMDD. The G/G genotype of HTR1A (rs6295) was found to be associated with impaired WM in the premenstrual phase and premenstrual decline of cognitive function. It also contributed to the vulnerability of cognitive function to the menstrual cycle effect and PMDD effect. As the G/G genotype of HTR1A (rs6295) involves in reducing serotonin neurotransmission, our results provide insight into the serotonin mechanism of cognitive function among women with PMDD.
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Affiliation(s)
- Ju-Yu Yen
- Department of Psychiatry, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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32
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Walton E, Geisler D, Lee PH, Hass J, Turner JA, Liu J, Sponheim SR, White T, Wassink TH, Roessner V, Gollub RL, Calhoun VD, Ehrlich S. Prefrontal inefficiency is associated with polygenic risk for schizophrenia. Schizophr Bull 2014; 40:1263-71. [PMID: 24327754 PMCID: PMC4193692 DOI: 10.1093/schbul/sbt174] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Considering the diverse clinical presentation and likely polygenic etiology of schizophrenia, this investigation examined the effect of polygenic risk on a well-established intermediate phenotype for schizophrenia. We hypothesized that a measure of cumulative genetic risk based on additive effects of many genetic susceptibility loci for schizophrenia would predict prefrontal cortical inefficiency during working memory, a brain-based biomarker for the disorder. The present study combined imaging, genetic and behavioral data obtained by the Mind Clinical Imaging Consortium study of schizophrenia (n = 255). For each participant, we derived a polygenic risk score (PGRS), which was based on over 600 nominally significant single nucleotide polymorphisms, associated with schizophrenia in a separate discovery sample comprising 3322 schizophrenia patients and 3587 control participants. Increased polygenic risk for schizophrenia was associated with neural inefficiency in the left dorsolateral prefrontal cortex after covarying for the effects of acquisition site, diagnosis, and population stratification. We also provide additional supporting evidence for our original findings using scores based on results from the Psychiatric Genomics Consortium study. Gene ontology analysis of the PGRS highlighted genetic loci involved in brain development and several other processes possibly contributing to disease etiology. Our study permits new insights into the additive effect of hundreds of genetic susceptibility loci on a brain-based intermediate phenotype for schizophrenia. The combined impact of many common genetic variants of small effect are likely to better reveal etiologic mechanisms of the disorder than the study of single common genetic variants.
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Affiliation(s)
- Esther Walton
- Department of Child and Adolescent Psychiatry, University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Daniel Geisler
- Department of Child and Adolescent Psychiatry, University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | | | - Johanna Hass
- Department of Child and Adolescent Psychiatry, University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | | | - Jingyu Liu
- The Mind Research Network, Albuquerque, NM
| | - Scott R Sponheim
- Minneapolis Veterans Affairs Health Care System, Minneapolis, MN; Department of Psychiatry, University of Minnesota, Minneapolis, MN
| | - Tonya White
- Department of Child and Adolescent Psychiatry, Erasmus University, Rotterdam, Netherlands
| | | | - Veit Roessner
- Department of Child and Adolescent Psychiatry, University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Randy L Gollub
- Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA; MGH/MIT/HMS Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA
| | - Vince D Calhoun
- The Mind Research Network, Albuquerque, NM; Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, NM
| | - Stefan Ehrlich
- Department of Child and Adolescent Psychiatry, University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany; Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA; MGH/MIT/HMS Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA;
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Melcher T, Wolter S, Falck S, Wild E, Wild F, Gruber E, Falkai P, Gruber O. Common and disease-specific dysfunctions of brain systems underlying attentional and executive control in schizophrenia and bipolar disorder. Eur Arch Psychiatry Clin Neurosci 2014; 264:517-32. [PMID: 24061607 DOI: 10.1007/s00406-013-0445-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 09/02/2013] [Indexed: 11/24/2022]
Abstract
Schizophrenia and bipolar disorder broadly overlap in multiple areas involving clinical phenomenology, genetics, and neurobiology. Still, the investigation into specific elementary (sub-)processes of executive functioning may help to define clear points of distinction between these categorical diagnoses to validate the nosological dichotomy and, indirectly, to further elucidate their pathophysiological underpinnings. In the present behavioral study, we sought to separate common from diagnosis-specific deficits in a series of specific elementary sub-functions of executive processing in patients with schizophrenia and bipolar disorder. For our purpose, we administered a modern and multi-purpose neuropsychological task paradigm to equal-sized and matched groups of schizophrenia patients, patients with bipolar disorder, and healthy control subjects. First, schizophrenia patients compared to the bipolar group exhibited a more pronounced deficit in general measures of task performance comprising both response speed and accuracy. Additionally, bipolar patients showed increased advance task preparation, i.e., were better able to compensate for response speed deficits when longer preparation intervals were provided. Set-shifting, on the other hand, was impaired to a similar degree in both patient groups. Finally, schizophrenia patients exhibited a specific deficit in conflict processing (inhibitory control) and the shielding of task-relevant processing from distraction (i.e., attentional maintenance). The present investigation suggests that specific neuropsychological measures of elementary executive functions may represent important points of dissociation between schizophrenia and bipolar disorder, which may help to differentiate the pathophysiological underpinnings of these major psychiatric disorders. In this context, the present findings highlight the measures of inhibitory control and attentional maintenance as promising candidates.
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Affiliation(s)
- Tobias Melcher
- Centre for Translational Research in Systems Neuroscience and Clinical Psychiatry, Department of Psychiatry and Psychotherapy, Georg August University Göttingen, von-Siebold-Str. 5, 37075, Göttingen, Germany,
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Clark KL, Noudoost B. The role of prefrontal catecholamines in attention and working memory. Front Neural Circuits 2014; 8:33. [PMID: 24782714 PMCID: PMC3986539 DOI: 10.3389/fncir.2014.00033] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 03/19/2014] [Indexed: 12/19/2022] Open
Abstract
While much progress has been made in identifying the brain regions and neurochemical systems involved in the cognitive processes disrupted in mental illnesses, to date, the level of detail at which neurobiologists can describe the chain of events giving rise to cognitive functions is very rudimentary. Much of the intense interest in understanding cognitive functions is motivated by the hope that it might be possible to understand these complex functions at the level of neurons and neural circuits. Here, we review the current state of the literature regarding how modulations in catecholamine levels within the prefrontal cortex (PFC) alter the neuronal and behavioral correlates of cognitive functions, particularly attention and working memory.
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Affiliation(s)
- Kelsey L Clark
- Department of Cell Biology and Neuroscience, Montana State University Bozeman, MT, USA
| | - Behrad Noudoost
- Department of Cell Biology and Neuroscience, Montana State University Bozeman, MT, USA
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35
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Influence of acute tryptophan depletion on verbal declarative episodic memory in young adult females. Amino Acids 2013; 45:1207-19. [DOI: 10.1007/s00726-013-1582-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 08/15/2013] [Indexed: 10/26/2022]
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Price JS, Strong J, Eliassen J, McQueeny T, Miller M, Padula CB, Shear P, Lisdahl K. Serotonin transporter gene moderates associations between mood, memory and hippocampal volume. Behav Brain Res 2012; 242:158-65. [PMID: 23266326 DOI: 10.1016/j.bbr.2012.11.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 11/08/2012] [Accepted: 11/12/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND The short (S) allele of the serotonin transporter gene (5-HTTLPR) is associated with reduced serotonin turnover compared to the long (L) allele in Caucasians. Few studies have examined its impact on memory and brain structure in healthy young adults. METHODS Participants included 51 healthy young adults (25 female; ages 18-25). Multiple regressions examined the independent contribution of 5-HTTLPR biomarker genotype and its interactions with gender and sub-clinical depressive symptoms on hippocampal volumes and memory. RESULTS The 5-HTTLPR genotype significantly interacted with gender in predicting larger left hippocampal volumes in S-carrying females and smaller hippocampal volumes in males (p<.03). Gender also moderated the impact of the 5-HTTLPR on neurocognition. In females, S allele carriers had poorer visual recall compared to L carriers (p<.05). A three-way interaction between 5-HTTLPR, gender, and depressive symptoms was also observed (p<.04). In females, larger left hippocampal volumes were associated with increased depressive symptoms while the opposite was seen in males. Finally, in male and female S carriers, increased depressive symptoms were marginally associated with poorer verbal memory (p<.09). CONCLUSIONS In females, the 5-HTTLPR S allele was associated with poorer memory performance, increased depressive symptoms and larger hippocampal volumes. In males, the S allele predicted smaller hippocampal volumes and increased depressive symptoms. The opposite morphometric patterns likely reflect gender differences in adolescent hippocampal development. Larger longitudinal studies are needed to examine whether the impact of 5-HTTLPR genotype on neurocognition across development differs according to extent of mood symptoms and gender.
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Affiliation(s)
- Jenessa S Price
- University of Cincinnati, Departments of Psychology, United States
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Schmitt A, Falkai P. Post-mortem findings in mood disorders, nightmares and therapeutic approaches of psychiatric diseases. Eur Arch Psychiatry Clin Neurosci 2012; 262:635-6. [PMID: 23053468 DOI: 10.1007/s00406-012-0376-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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