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Eslami Rasekh M, Hernández Y, Drinan SD, Fuxman Bass J, Benson G. Genome-wide characterization of human minisatellite VNTRs: population-specific alleles and gene expression differences. Nucleic Acids Res 2021; 49:4308-4324. [PMID: 33849068 PMCID: PMC8096271 DOI: 10.1093/nar/gkab224] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/06/2021] [Accepted: 03/18/2021] [Indexed: 11/12/2022] Open
Abstract
Variable Number Tandem Repeats (VNTRs) are tandem repeat (TR) loci that vary in copy number across a population. Using our program, VNTRseek, we analyzed human whole genome sequencing datasets from 2770 individuals in order to detect minisatellite VNTRs, i.e., those with pattern sizes ≥7 bp. We detected 35 638 VNTR loci and classified 5676 as commonly polymorphic (i.e. with non-reference alleles occurring in >5% of the population). Commonly polymorphic VNTR loci were found to be enriched in genomic regions with regulatory function, i.e. transcription start sites and enhancers. Investigation of the commonly polymorphic VNTRs in the context of population ancestry revealed that 1096 loci contained population-specific alleles and that those could be used to classify individuals into super-populations with near-perfect accuracy. Search for quantitative trait loci (eQTLs), among the VNTRs proximal to genes, indicated that in 187 genes expression differences correlated with VNTR genotype. We validated our predictions in several ways, including experimentally, through the identification of predicted alleles in long reads, and by comparisons showing consistency between sequencing platforms. This study is the most comprehensive analysis of minisatellite VNTRs in the human population to date.
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Affiliation(s)
| | - Yözen Hernández
- Graduate Program in Bioinformatics, Boston University, Boston, MA 02215, USA
| | | | - Juan I Fuxman Bass
- Graduate Program in Bioinformatics, Boston University, Boston, MA 02215, USA
- Department of Biology, Boston University, Boston, MA 02215, USA
| | - Gary Benson
- Graduate Program in Bioinformatics, Boston University, Boston, MA 02215, USA
- Department of Biology, Boston University, Boston, MA 02215, USA
- Department of Computer Science, Boston University, Boston, MA 02215, USA
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Buch AM, Liston C. Dissecting diagnostic heterogeneity in depression by integrating neuroimaging and genetics. Neuropsychopharmacology 2021; 46:156-175. [PMID: 32781460 PMCID: PMC7688954 DOI: 10.1038/s41386-020-00789-3] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/07/2020] [Accepted: 07/16/2020] [Indexed: 12/12/2022]
Abstract
Depression is a heterogeneous and etiologically complex psychiatric syndrome, not a unitary disease entity, encompassing a broad spectrum of psychopathology arising from distinct pathophysiological mechanisms. Motivated by a need to advance our understanding of these mechanisms and develop new treatment strategies, there is a renewed interest in investigating the neurobiological basis of heterogeneity in depression and rethinking our approach to diagnosis for research purposes. Large-scale genome-wide association studies have now identified multiple genetic risk variants implicating excitatory neurotransmission and synapse function and underscoring a highly polygenic inheritance pattern that may be another important contributor to heterogeneity in depression. Here, we review various sources of phenotypic heterogeneity and approaches to defining and studying depression subtypes, including symptom-based subtypes and biology-based approaches to decomposing the depression syndrome. We review "dimensional," "categorical," and "hybrid" approaches to parsing phenotypic heterogeneity in depression and defining subtypes using functional neuroimaging. Next, we review recent progress in neuroimaging genetics (correlating neuroimaging patterns of brain function with genetic data) and its potential utility for generating testable hypotheses concerning molecular and circuit-level mechanisms. We discuss how genetic variants and transcriptomic profiles may confer risk for depression by modulating brain structure and function. We conclude by highlighting several promising areas for future research into the neurobiological underpinnings of heterogeneity, including efforts to understand sexually dimorphic mechanisms, the longitudinal dynamics of depressive episodes, and strategies for developing personalized treatments and facilitating clinical decision-making.
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Affiliation(s)
- Amanda M Buch
- Department of Psychiatry and Brain and Mind Research Institute, Weill Cornell Medicine, 413 East 69th Street, Box 240, New York, NY, 10021, USA
| | - Conor Liston
- Department of Psychiatry and Brain and Mind Research Institute, Weill Cornell Medicine, 413 East 69th Street, Box 240, New York, NY, 10021, USA.
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Martins E Silva DC, Marinho V, Teixeira S, Teles G, Marques J, Escórcio A, Fernandes T, Freitas AC, Nunes M, Ayres M, Ayres C, Marques JB, Cagy M, Gupta DS, Bastos VH. Non-immersive 3D virtual stimulus alter the time production task performance and increase the EEG theta power in dorsolateral prefrontal cortex. Int J Neurosci 2020; 132:563-573. [PMID: 32962509 DOI: 10.1080/00207454.2020.1826945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AIM The study investigated the cortical activity changes and time production task performance induced by changes in motion speed of a non-immersive 3D virtual stimulus. MATERIAL AND METHODS Twenty-one individuals were participated in the crossover study with the visual-time reproduction task under three-speed conditions: original, slow and fast virtual stimulus. In addition, the electroencephalographic analysis of the theta band power in the dorsolateral prefrontal cortex was done simultaneously with time production task execution. RESULTS The results demonstrated that in the slow speed condition, there is an increase in the error in the time production task after virtual reality (p < 0.05). There is also increased EEG theta power in the right dorsolateral prefrontal cortex in all speed conditions (p < 0.05). CONCLUSIONS We propose that the modulations of speed of virtual stimulus may underlie the accumulation of temporal pulses, which could be responsible for changes in the performance of the production task of the time intervals and a substantial increase in right dorsolateral prefrontal cortex activity related to attention and memory, acting in cognitive domains of supraseconds.
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Affiliation(s)
| | - Victor Marinho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Silmar Teixeira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Gabriela Teles
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - João Marques
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Anderson Escórcio
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Thayaná Fernandes
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Ana Cláudia Freitas
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Monara Nunes
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Marcos Ayres
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Carla Ayres
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Juliana Bittencourt Marques
- Laboratory of Neurophysiology and Neuropsychology of Attention, Veiga de Almeida University, Cabo Frio, Brazil
| | - Maurício Cagy
- Masters and PhD Program in Biomedical Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daya S Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - Victor Hugo Bastos
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
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Fontes RM, Marinho V, Carvalho V, Rocha K, Magalhães F, Moura I, Ribeiro P, Velasques B, Cagy M, Gupta DS, Bastos VH, Teles AS, Teixeira S. Time estimation exposure modifies cognitive aspects and cortical activity of attention deficit hyperactivity disorder adults. Int J Neurosci 2020; 130:999-1014. [DOI: 10.1080/00207454.2020.1715394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Rhailana Medeiros Fontes
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Victor Marinho
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
| | - Valécia Carvalho
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
| | - Kaline Rocha
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
| | - Francisco Magalhães
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
| | - Iris Moura
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
- Masters Programs in Biotechnology, Federal University of Piauí, Parnaíba, Brazil
| | - Pedro Ribeiro
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry, Federal University of Rio De Janeiro, Rio De Janeiro, Brazil
| | - Bruna Velasques
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry, Federal University of Rio De Janeiro, Rio De Janeiro, Brazil
| | - Mauricio Cagy
- Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry, Federal University of Rio De Janeiro, Rio De Janeiro, Brazil
| | - Daya S. Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - Victor Hugo Bastos
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina, Brazil
- Masters Programs in Biotechnology, Federal University of Piauí, Parnaíba, Brazil
- Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Ariel Soares Teles
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil
- Masters Programs in Biotechnology, Federal University of Piauí, Parnaíba, Brazil
- Federal Institute of Maranhão, Maranhão, Brazil
| | - Silmar Teixeira
- Neuro-Innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, 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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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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