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Delay activity during visual working memory: A meta-analysis of 30 fMRI experiments. Neuroimage 2022; 255:119204. [PMID: 35427771 DOI: 10.1016/j.neuroimage.2022.119204] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/04/2022] [Accepted: 04/08/2022] [Indexed: 01/22/2023] Open
Abstract
Visual working memory refers to the temporary maintenance and manipulation of task-related visual information. Recent debate on the underlying neural substrates of visual working memory has focused on the delay period of relevant tasks. Persistent neural activity throughout the delay period has been recognized as a correlate of working memory, yet regions demonstrating sustained hemodynamic responses show inconsistency across individual studies. To develop a more precise understanding of delay-period activations during visual working memory, we conducted a coordinate-based meta-analysis on 30 fMRI experiments involving 515 healthy adults with a mean age of 25.65 years. The main analysis revealed a widespread frontoparietal network associated with delay-period activity, as well as activation in the right inferior temporal cortex. These findings were replicated using different meta-analytical algorithms and were shown to be robust against between-study heterogeneity and publication bias. Further meta-analyses on different subgroups of experiments with specific task demands and stimulus types revealed similar delay-period networks, with activations distributed across the frontal and parietal cortices. The roles of prefrontal regions, posterior parietal regions, and inferior temporal areas are reviewed and discussed in the context of content-specific storage. We conclude that cognitive operations that occur during the unfilled delay period in visual working memory tasks can be flexibly expressed across a frontoparietal-temporal network depending on experimental parameters.
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Mechanistic interplay of various mediators involved in mediating the neuroprotective effect of daphnetin. Pharmacol Rep 2021; 73:1220-1229. [PMID: 33860917 DOI: 10.1007/s43440-021-00261-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 03/11/2021] [Accepted: 04/02/2021] [Indexed: 12/20/2022]
Abstract
Daphnetin is a 7, 8 dihydroxy coumarin isolated from different medicinal plants of the Thymelaeaceae family and exhibits copious pharmacological activities including neuroprotection, anti-cancer, anti-malarial, anti-inflammatory, anti-parasitic and anti-arthritic activity. It has been proved to be an effective neuroprotective agent in several preclinical animal studies and cell line examinations. It is found to interact with different cellular mediators and signaling pathways to confer protection against neurodegeneration. The reactive oxygen species and inflammatory mediators are the major culprits of different neurodegenerative diseases. Oxidative stress activates the pro-apoptotic proteins and inhibits anti-apoptotic proteins, leading to neuronal cell death. Daphnetin restores cellular redox balance by upregulating the antioxidants level (GSH and SOD), anti-apoptotic protein (Bcl-2), as well as by reducing the levels of proinflammatory cytokines, executioner caspase-3, pro-apoptotic-Bax, and oxidative stress markers. Furthermore, activation of Nrf-2/HO-1 signaling and upregulation of HSP-70 governs the protection elicited by daphnetin against oxidative stress-induced neuronal apoptosis. Daphnetin modulated inhibition of JNK-MAPK, JAK-STAT, and TLR-4/NF-κB signaling pathways also contributed to its neuroprotective effect. The positive effects of daphnetin have been also related to its AChE, BChE, and BACE-1 inhibitory potential. The present review has been designed to explore the mechanistic interplay of various mediators in mediating the neuroprotective effects of daphnetin.
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Kondo HM, Lin IF. Excitation-inhibition balance and auditory multistable perception are correlated with autistic traits and schizotypy in a non-clinical population. Sci Rep 2020; 10:8171. [PMID: 32424307 PMCID: PMC7234986 DOI: 10.1038/s41598-020-65126-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 04/27/2020] [Indexed: 12/20/2022] Open
Abstract
Individuals with autism spectrum disorder and individuals with schizophrenia have impaired social and communication skills. They also have altered auditory perception. This study investigated autistic traits and schizotypy in a non-clinical population as well as the excitation-inhibition (EI) balance in different brain regions and their auditory multistable perception. Thirty-four healthy participants were assessed by the Autism-Spectrum Quotient (AQ) and Schizotypal Personality Questionnaire (SPQ). The EI balance was evaluated by measuring the resting-state concentrations of glutamate-glutamine (Glx) and ϒ-aminobutyric acid (GABA) in vivo by using magnetic resonance spectroscopy. To observe the correlation between their traits and perception, we conducted an auditory streaming task and a verbal transformation task, in which participants reported spontaneous perceptual switching while listening to a sound sequence. Their AQ and SPQ scores were positively correlated with the Glx/GABA ratio in the auditory cortex but not in the frontal areas. These scores were negatively correlated with the number of perceptual switches in the verbal transformation task but not in the auditory streaming task. Our results suggest that the EI balance in the auditory cortex and the perceptual formation of speech are involved in autistic traits and schizotypy.
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Affiliation(s)
- Hirohito M Kondo
- School of Psychology, Chukyo University, Nagoya, Aichi, 466-8666, Japan. .,Human Information Science Laboratory, NTT Communication Science Laboratories, NTT Corporation, Atsugi, Kanagawa, 243-0198, Japan.
| | - I-Fan Lin
- Department of Occupational Medicine, Shuang Ho Hospital, New Taipei City, 235, Taiwan.,Department of Medicine, Taipei Medical University, Taipei, 110, Taiwan
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Morris KA, Grace SA, Woods W, Dean B, Rossell SL. The influence of COMT rs4680 on functional connectivity in healthy adults: A systematic review. Eur J Neurosci 2020; 52:3851-3878. [PMID: 32306439 DOI: 10.1111/ejn.14748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/01/2022]
Abstract
The aim of this systematic review was to qualitatively synthesise the available research that investigated the influence of COMT genotype at SNP rs4680 on both task-based and resting-state connectivity in healthy adults. Thirty-five studies were identified that met inclusion criteria. Of the included studies, 20 studies reported resting-state findings and 16 studies reported task-based findings (emotion-processing, memory, working memory, reward-based learning and executive function). Studies were highly heterogeneous but an overall trend towards an association of the Val allele with greater resting-state connectivity and the Met allele with greater task-based connectivity is reported. A possible interpretation of current findings is discussed, whereby the Val allele is associated with improved cognitive flexibility allowing integration of novel relevant stimuli, and the Met allele allows improved sustained attention and targeted neural processing, particularly between limbic regions and prefrontal cortex. The most promising brain regions implicated in a COMT genotype influence on functional connectivity include prefrontal regions, amygdala and hippocampus.
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Affiliation(s)
- Kim A Morris
- Centre for Mental health, Swinburne University, Melbourne, Vic., Australia
| | - Sally A Grace
- Centre for Mental health, Swinburne University, Melbourne, Vic., Australia
| | - Will Woods
- Centre for Mental health, Swinburne University, Melbourne, Vic., Australia
| | - Brian Dean
- Centre for Mental health, Swinburne University, Melbourne, Vic., Australia.,The Florey Institute for Neuroscience and Mental Health, Melbourne, Vic., Australia
| | - Susan L Rossell
- Centre for Mental health, Swinburne University, Melbourne, Vic., Australia.,Psychiatry, St Vincent's Hospital, Melbourne, Vic., Australia
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Kim H. Neural activity during working memory encoding, maintenance, and retrieval: A network-based model and meta-analysis. Hum Brain Mapp 2019; 40:4912-4933. [PMID: 31373730 DOI: 10.1002/hbm.24747] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/08/2019] [Accepted: 07/23/2019] [Indexed: 12/21/2022] Open
Abstract
It remains unclear whether and to what extent working memory (WM) temporal subprocesses (i.e., encoding, maintenance, and retrieval) involve shared or distinct intrinsic networks. To address this issue, I constructed a model of intrinsic network contributions to different WM phases and then evaluated the validity of the model by performing a quantitative meta-analysis of relevant functional neuroimaging data. The model suggests that the transition from the encoding to maintenance and to retrieval stages involves progressively decreasing involvement of the dorsal attention network (DAN), but progressively increasing involvement of the frontoparietal control network (FPCN). Separate meta-analysis of each phase effect and direct comparisons between them yielded results that were largely consistent with the model. This evidence included between-phase double dissociations that were consistent with the model, such as encoding > maintenance contrast showing some DAN, but no FPCN, regions, and maintenance > encoding contrast showing the reverse, that is, some FPCN, but no DAN, regions. Two closely juxtaposed regions that are members of the DAN and FPCN, such as inferior frontal junction versus caudal prefrontal cortex and superior versus inferior intraparietal sulcus, showed a high degree of functional differentiation. Although all regions identified in the present study were already identified in previous WM studies, this study uniquely enhances our understating of their roles by clarifying their network membership and specific associations with different WM phases.
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Affiliation(s)
- Hongkeun Kim
- Department of Rehabilitation Psychology, Daegu University, Gyeongsan-si, Republic of Korea
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Bosia M, Buonocore M, Bechi M, Stere LM, Silvestri MP, Inguscio E, Spangaro M, Cocchi F, Bianchi L, Guglielmino C, Cavallaro R. Schizophrenia, cannabis use and Catechol-O-Methyltransferase (COMT): Modeling the interplay on cognition. Prog Neuropsychopharmacol Biol Psychiatry 2019; 92:363-368. [PMID: 30790675 DOI: 10.1016/j.pnpbp.2019.02.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 11/17/2022]
Abstract
Cognitive impairments are considered core features of schizophrenia and are recognized as the most important predictors of functional outcome and quality of life. A better study of the mechanisms underlying the cognition is of extreme relevance. Literature has shown that several genetic and environmental factors affect cognitive performance. In particular, the interaction between Catechol-O-Methyltransferase (COMT) gene and cannabis use has gained increasing attention in the past years. Based on these premises, the present study, aimed to analyze the interplay between cannabis use and COMT polymorphism on cognitive performance in a sample of 135 patients with chronic schizophrenia. Patients were assessed for neurocognitive measures with a broad battery, genotyped for COMT Val158Met polymorphism from peripheral blood sample, and evaluated with a semi-structured interview in order to establish the history of cannabis abuse. Results showed a significant interaction effect between COMT polymorphism and cannabis use on verbal fluency and speed of processing. The analysis revealed significant differences between subjects COMT Val/Val homozygous and Met carriers with history of cannabis use, with a better performance on both tasks among the Met carriers group. These data are in line with literature on healthy subjects that suggests a more detrimental effect of cannabis among subjects with Val/Val genotype. In conclusions, results highlight the need to better disentangle the biological pathways in which cannabis use and COMT are converging, as possible treatment targets, as well as the importance to assess these factors in clinical to optimize individualized interventions.
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Affiliation(s)
- Marta Bosia
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy; School of Medicine, Vita -Salute San Raffaele University, Milan, Italy
| | - Mariachiara Buonocore
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy.
| | - Margherita Bechi
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | | | - Emanuela Inguscio
- School of Psychology, Vita -Salute San Raffaele University, Milan, Italy
| | - Marco Spangaro
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Cocchi
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Laura Bianchi
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Carmelo Guglielmino
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Cavallaro
- Department of Clinical Neurosciences, IRCCS San Raffaele Scientific Institute, Milan, Italy; School of Medicine, Vita -Salute San Raffaele University, Milan, Italy
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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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8
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Costa DDS, de Paula JJ, Alvim-Soares AM, Pereira PA, Malloy-Diniz LF, Rodrigues LOC, Romano-Silva MA, de Miranda DM. COMT Val(158)Met Polymorphism Is Associated with Verbal Working Memory in Neurofibromatosis Type 1. Front Hum Neurosci 2016; 10:334. [PMID: 27458360 PMCID: PMC4932101 DOI: 10.3389/fnhum.2016.00334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 06/16/2016] [Indexed: 12/26/2022] Open
Abstract
Neurofibromatosis type I (NF1) is a neurogenetic disease marked by multiple cognitive and learning problems. Genetic variants may account for phenotypic variance in NF1. Here, we investigated the association between the catechol-O-methyltransferase (COMT) Val(158)Met polymorphism and working memory and arithmetic performance in 50 NF1 individuals. A significant association of the COMT polymorphism was observed only with verbal working memory, as measured by the backward digit-span task with an advantageous performance for Met/Met carriers. To study how genetic modifiers influence NF1 cognitive performance might be of importance to decrease the unpredictability of the cognitive profile among NF1 patients.
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Affiliation(s)
- Danielle de Souza Costa
- Postgraduate Program in Molecular Medicine, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
| | - Jonas J. de Paula
- Postgraduate Program in Molecular Medicine, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
- Department of Psychology, Faculty of Medical Sciences of Minas GeraisBelo Horizonte, Brazil
| | - Antonio M. Alvim-Soares
- Postgraduate Program in Molecular Medicine, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
| | - Patrícia A. Pereira
- Postgraduate Program in Molecular Medicine, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
| | - Leandro F. Malloy-Diniz
- Department of Psychiatry, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
- National Institute of Science and Technology of Molecular MedicineBelo Horizonte, Brazil
| | - Luiz O. C. Rodrigues
- Neurofibromatosis Outpatient Reference Center, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
| | - Marco A. Romano-Silva
- Department of Psychiatry, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
- National Institute of Science and Technology of Molecular MedicineBelo Horizonte, Brazil
| | - Débora M. de Miranda
- National Institute of Science and Technology of Molecular MedicineBelo Horizonte, Brazil
- Department of Pediatrics, School of Medicine, Federal University of Minas GeraisBelo Horizonte, Brazil
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9
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Ruiz-Contreras AE, Román-López TV, Caballero-Sánchez U, Rosas-Escobar CB, Ortega-Mora EI, Barrera-Tlapa MA, Romero-Hidalgo S, Carrillo-Sánchez K, Hernández-Morales S, Vadillo-Ortega F, González-Barrios JA, Méndez-Díaz M, Prospéro-García O. Because difficulty is not the same for everyone: the impact of complexity in working memory is associated with cannabinoid 1 receptor genetic variation in young adults. Memory 2016; 25:335-343. [PMID: 27108777 DOI: 10.1080/09658211.2016.1172642] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Individual differences in working memory ability are mainly revealed when a demanding challenge is imposed. Here, we have associated cannabinoid 1 (CB1) receptor genetic variation rs2180619 (AA, AG, GG), which is located in a potential CNR1 regulatory sequence, with performance in working memory. Two-hundred and nine Mexican-mestizo healthy young participants (89 women, 120 men, mean age: 23.26 years, SD = 2.85) were challenged to solve a medium (2-back) vs. a high (3-back) difficulty N-back tasks. All subjects responded as expected, performance was better with the medium than the high demand task version, but no differences were found among genotypes while performing each working memory (WM) task. However, the cost of the level of complexity in N-back paradigm was double for GG subjects than for AA subjects. It is noteworthy that an additive-dosage allele relation was found for G allele in terms of cost of level of complexity. These genetic variation results support that the endocannabinoid system, evaluated by rs2180619 polymorphism, is involved in WM ability in humans.
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Affiliation(s)
- Alejandra E Ruiz-Contreras
- a Gpo. Neurociencias: Lab. Neurogenomica Cognitiva, Coord. Psicobiología y Neurociencias, Fac. Psicologia , Universidad Nacional Autonoma de Mexico (UNAM) , Cd. Mexico, Mexico.,b Gpo. Neurociencias: Lab. Canabinoides, Depto. Fisiologia, Fac. Medicina , UNAM , Cd. Mexico, Mexico
| | - Talía V Román-López
- a Gpo. Neurociencias: Lab. Neurogenomica Cognitiva, Coord. Psicobiología y Neurociencias, Fac. Psicologia , Universidad Nacional Autonoma de Mexico (UNAM) , Cd. Mexico, Mexico
| | - Ulises Caballero-Sánchez
- a Gpo. Neurociencias: Lab. Neurogenomica Cognitiva, Coord. Psicobiología y Neurociencias, Fac. Psicologia , Universidad Nacional Autonoma de Mexico (UNAM) , Cd. Mexico, Mexico
| | - Cintia B Rosas-Escobar
- a Gpo. Neurociencias: Lab. Neurogenomica Cognitiva, Coord. Psicobiología y Neurociencias, Fac. Psicologia , Universidad Nacional Autonoma de Mexico (UNAM) , Cd. Mexico, Mexico
| | - E Ivett Ortega-Mora
- a Gpo. Neurociencias: Lab. Neurogenomica Cognitiva, Coord. Psicobiología y Neurociencias, Fac. Psicologia , Universidad Nacional Autonoma de Mexico (UNAM) , Cd. Mexico, Mexico
| | - Miguel A Barrera-Tlapa
- a Gpo. Neurociencias: Lab. Neurogenomica Cognitiva, Coord. Psicobiología y Neurociencias, Fac. Psicologia , Universidad Nacional Autonoma de Mexico (UNAM) , Cd. Mexico, Mexico
| | - Sandra Romero-Hidalgo
- c Departamento de Genómica Computacional , Instituto Nacional de Medicina Genómica (INMEGEN) , Cd. Mexico, Mexico
| | | | | | - Felipe Vadillo-Ortega
- f Unidad de Vinculación Científica Facultad de Medicina , UNAM, INMEGEN , Cd. Mexico, Mexico
| | - Juan Antonio González-Barrios
- g Lab. Medicina Genómica, Hospital Regional "Primero de Octubre" , Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE) , Cd. Mexico, Mexico
| | - Mónica Méndez-Díaz
- b Gpo. Neurociencias: Lab. Canabinoides, Depto. Fisiologia, Fac. Medicina , UNAM , Cd. Mexico, Mexico
| | - Oscar Prospéro-García
- b Gpo. Neurociencias: Lab. Canabinoides, Depto. Fisiologia, Fac. Medicina , UNAM , Cd. Mexico, Mexico
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