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Santos AS, Cazetta E, Faria D, Lima TM, Lopes MTG, Carvalho CDS, Alves‐Pereira A, Morante‐Filho JC, Gaiotto FA. Tropical forest loss and geographic location drive the functional genomic diversity of an endangered palm tree. Evol Appl 2023; 16:1257-1273. [PMID: 37492151 PMCID: PMC10363835 DOI: 10.1111/eva.13525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 07/27/2023] Open
Abstract
Human activity has diminished forests in different terrestrial ecosystems. This is well illustrated in the Brazilian Atlantic Forest, which still hosts high levels of species richness and endemism, even with only 28% of its original extent remaining. The consequences of such forest loss in remaining populations can be investigated with several approaches, including the genomic perspective, which allows a broader understanding of how human disturbance influences the genetic variability in natural populations. In this context, our study investigated the genomic responses of Euterpe edulis Martius, an endangered palm tree, in forest remnants located in landscapes presenting different forest cover amount and composed by distinct bird assemblage that disperse its seeds. We sampled 22 areas of the Brazilian Atlantic Forest in four regions using SNP markers inserted into transcribed regions of the genome of E. edulis, distinguishing neutral loci from those putatively under natural selection (outlier). We demonstrate that populations show patterns of structure and genetic variability that differ between regions, as a possible reflection of deforestation and biogeographic histories. Deforested landscapes still maintain high neutral genetic diversity due to gene flow over short distances. Overall, we not only support previous evidence with microsatellite markers, but also show that deforestation can influence the genetic variability outlier, in the scenario of selective pressures imposed by these stressful environments. Based on our findings, we suggest that, to protect genetic diversity in the long term, it is necessary to reforest and enrich deforested areas, using seeds from populations in the same management target region.
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Affiliation(s)
- Alesandro Souza Santos
- Laboratório de Ecologia Aplicada à Conservação, Programa de Pós‐Graduação em Ecologia e Conservação da BiodiversidadeUniversidade Estadual de Santa CruzIlhéusBrazil
- Laboratório de Marcadores Moleculares, Centro de Biotecnologia e GenéticaUniversidade Estadual de Santa CruzIlhéusBrazil
| | - Eliana Cazetta
- Laboratório de Ecologia Aplicada à Conservação, Programa de Pós‐Graduação em Ecologia e Conservação da BiodiversidadeUniversidade Estadual de Santa CruzIlhéusBrazil
| | - Deborah Faria
- Laboratório de Ecologia Aplicada à Conservação, Programa de Pós‐Graduação em Ecologia e Conservação da BiodiversidadeUniversidade Estadual de Santa CruzIlhéusBrazil
| | - Thâmara Moura Lima
- Instituto Federal de Educação, Ciência e Tecnologia da Bahia – Campus SeabraSeabraBrazil
| | | | | | | | - José Carlos Morante‐Filho
- Laboratório de Ecologia Aplicada à Conservação, Programa de Pós‐Graduação em Ecologia e Conservação da BiodiversidadeUniversidade Estadual de Santa CruzIlhéusBrazil
| | - Fernanda Amato Gaiotto
- Laboratório de Ecologia Aplicada à Conservação, Programa de Pós‐Graduação em Ecologia e Conservação da BiodiversidadeUniversidade Estadual de Santa CruzIlhéusBrazil
- Laboratório de Marcadores Moleculares, Centro de Biotecnologia e GenéticaUniversidade Estadual de Santa CruzIlhéusBrazil
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Ruple BA, Plotkin DL, Smith MA, Godwin JS, Sexton CL, McIntosh MC, Kontos NJ, Beausejour JP, Pagan JI, Rodriguez JP, Sheldon D, Knowles KS, Libardi CA, Young KC, Stock MS, Roberts MD. The effects of resistance training to near failure on strength, hypertrophy, and motor unit adaptations in previously trained adults. Physiol Rep 2023; 11:e15679. [PMID: 37144554 PMCID: PMC10161210 DOI: 10.14814/phy2.15679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/09/2023] [Accepted: 04/06/2023] [Indexed: 05/06/2023] Open
Abstract
Limited research exists examining how resistance training to failure affects applied outcomes and single motor unit characteristics in previously trained individuals. Herein, resistance-trained adults (24 ± 3 years old, self-reported resistance training experience was 6 ± 4 years, 11 men and 8 women) were randomly assigned to either a low-repetitions-in-reserve (RIR; i.e., training near failure, n = 10) or high-RIR (i.e., not training near failure, n = 9) group. All participants implemented progressive overload during 5 weeks where low-RIR performed squat, bench press, and deadlift twice weekly and were instructed to end each training set with 0-1 RIR. high-RIR performed identical training except for being instructed to maintain 4-6 RIR after each set. During week 6, participants performed a reduced volume-load. The following were assessed prior to and following the intervention: (i) vastus lateralis (VL) muscle cross-sectional area (mCSA) at multiple sites; (ii) squat, bench press, and deadlift one-repetition maximums (1RMs); and (iii) maximal isometric knee extensor torque and VL motor unit firing rates during an 80% maximal voluntary contraction. Although RIR was lower in the low- versus high-RIR group during the intervention (p < 0.001), total training volume did not significantly differ between groups (p = 0.222). There were main effects of time for squat, bench press, and deadlift 1RMs (all p-values < 0.05), but no significant condition × time interactions existed for these or proximal/middle/distal VL mCSA data. There were significant interactions for the slope and y-intercept of the motor unit mean firing rate versus recruitment threshold relationship. Post hoc analyses indicated low-RIR group slope values decreased and y-intercept values increased after training suggesting low-RIR training increased lower-threshold motor unit firing rates. This study provides insight into how resistance training in proximity to failure affects strength, hypertrophy, and single motor unit characteristics, and may inform those who aim to program for resistance-trained individuals.
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Affiliation(s)
| | | | | | | | | | | | | | - Jonathan P. Beausejour
- School of Kinesiology and Rehabilitation SciencesUniversity of Central FloridaOrlandoFloridaUSA
| | - Jason I. Pagan
- School of Kinesiology and Rehabilitation SciencesUniversity of Central FloridaOrlandoFloridaUSA
| | - Juan P. Rodriguez
- School of Kinesiology and Rehabilitation SciencesUniversity of Central FloridaOrlandoFloridaUSA
| | - Daniel Sheldon
- School of Kinesiology and Rehabilitation SciencesUniversity of Central FloridaOrlandoFloridaUSA
| | - Kevan S. Knowles
- School of Kinesiology and Rehabilitation SciencesUniversity of Central FloridaOrlandoFloridaUSA
| | - Cleiton A. Libardi
- Department of Physical EducationFederal University of São CarlosSão CarlosBrazil
| | - Kaelin C. Young
- Biomedical SciencesPacific Northwest University of Health SciencesYakimaWashingtonUSA
| | - Matt S. Stock
- School of Kinesiology and Rehabilitation SciencesUniversity of Central FloridaOrlandoFloridaUSA
| | - Michael D. Roberts
- School of KinesiologyAuburn UniversityAuburnAlabamaUSA
- Edward Via College of Osteopathic MedicineAuburnAlabamaUSA
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Jerosch‐Herold M, Rickers C, Petersen SE, Coelho‐Filho OR. Myocardial Tissue Characterization in Cardiac Magnetic Resonance Studies of Patients Recovering From COVID-19: A Meta-Analysis. J Am Heart Assoc 2023; 12:e027801. [PMID: 36892052 PMCID: PMC10111516 DOI: 10.1161/jaha.122.027801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 01/05/2023] [Indexed: 03/10/2023]
Abstract
Background Meta-analysis can identify biological factors that moderate cardiac magnetic resonance myocardial tissue markers such as native T1 (longitudinal magnetization relaxation time constant) and T2 (transverse magnetization relaxation time constant) in cohorts recovering from COVID-19 infection. Methods and Results Cardiac magnetic resonance studies of patients with COVID-19 using myocardial T1, T2 mapping, extracellular volume, and late gadolinium enhancement were identified by database searches. Pooled effect sizes and interstudy heterogeneity (I2) were estimated with random effects models. Moderators of interstudy heterogeneity were analyzed by meta-regression of the percent difference of native T1 and T2 between COVID-19 and control groups (%ΔT1 [percent difference of the study-level means of myocardial T1 in patients with COVID-19 and controls] and %ΔT2 [percent difference of the study-level means of myocardial T2 in patients with COVID-19 and controls]), extracellular volume, and the proportion of late gadolinium enhancement. Interstudy heterogeneities of %ΔT1 (I2=76%) and %ΔT2 (I2=88%) were significantly lower than for native T1 and T2, respectively, independent of field strength, with pooled effect sizes of %ΔT1=1.24% (95% CI, 0.54%-1.9%) and %ΔT2=3.77% (95% CI, 1.79%-5.79%). %ΔT1 was lower for studies in children (median age: 12.7 years) and athletes (median age: 21 years), compared with older adults (median age: 48 years). Duration of recovery from COVID-19, cardiac troponins, C-reactive protein, and age were significant moderators for %ΔT1 and/or %ΔT2. Extracellular volume, adjusted by age, was moderated by recovery duration. Age, diabetes, and hypertension were significant moderators of the proportion of late gadolinium enhancement in adults. Conclusions T1 and T2 are dynamic markers of cardiac involvement in COVID-19 that reflect the regression of cardiomyocyte injury and myocardial inflammation during recovery. Late gadolinium enhancement and to a lesser extent extracellular volume, are more static biomarkers moderated by preexisting risk factors linked to adverse myocardial tissue remodeling.
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Affiliation(s)
- Michael Jerosch‐Herold
- Department of Radiology, Cardiovascular Imaging SectionBrigham and Women’s HospitalBostonMA
| | - Carsten Rickers
- Children’s Heart Clinic, Adult Congenital Heart Disease SectionUniversity Hospital Hamburg‐Eppendorf (UKE)HamburgGermany
| | - Steffen E. Petersen
- William Harvey Research InstituteNIHR Barts Biomedical Research Centre, Queen Mary University London, Charterhouse SquareLondonUnited Kingdom
- Barts Heart Centre, St Bartholomew’s HospitalBarts Health NHS TrustLondonUnited Kingdom
| | - Otávio R. Coelho‐Filho
- Department of Internal MedicineState University of Campinas (UNICAMP)Campinas, São PauloBrazil
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De Lazari MGT, Viana CTR, Pereira LX, Orellano LAA, Ulrich H, Andrade SP, Campos PP. Sodium butyrate attenuates peritoneal fibroproliferative process in mice. Exp Physiol 2023; 108:146-157. [PMID: 36459573 PMCID: PMC10103766 DOI: 10.1113/ep090559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 11/07/2022] [Indexed: 12/03/2022]
Abstract
NEW FINDINGS What is the central question of this study? Peritoneal injury can result in a persistent fibroproliferative process in the abdominal cavity, causing pain and loss of function of internal organs. This study aimed to demonstrate the use of sodium butyrate (NaBu) as a potential agent to attenuate peritoneal fibrosis induced by a synthetic matrix. What is the main finding and its importance? Our findings provide the first evidence that NaBu attenuates the inflammatory, angiogenesis and fibrogenesis axes involved in the formation of peritoneal fibrovascular tissue, indicating the potential of this compound to ameliorate peritoneal fibrosis. ABSTRACT The aim of this study was to identify the bio-efficacy of sodium butyrate (NaBu) on preventing the development of peritoneal fibrovascular tissue induced by implantation of a synthetic matrix in the abdominal cavity. Polyether-polyurethane sponge discs were implanted in the peritoneal cavity of mice, which were treated daily with oral administration of NaBu (100 mg/kg). Control animals received water (100 μl). After 7 days, the implants were removed for assessment of inflammatory, angiogenic and fibrogenic markers. Compared with control values, NaBu treatment decreased mast cell recruitment/activation, inflammatory enzyme activities, levels of pro-inflammatory cytokines, and the proteins p65 and p50 of the nuclear factor-κB pathway. Angiogenesis, as determined by haemoglobin content, vascular endothelial growth factor levels and the number of blood vessels in the implant, was reduced by the treatment. In NaBu-treated animals, the predominant collagen present in the abdominal fibrovascular tissue was thin collagen, whereas in control implants it was thick collagen. Transforming growth factor-β1 levels were also lower in implants of treated animals. Sodium butyrate downregulated the inflammatory, angiogenesis and fibrogenesis axes of the fibroproliferative tissue induced by the intraperitoneal synthetic matrix. This compound has potential to control/regulate chronic inflammation and adverse healing processes in the abdominal cavity.
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Affiliation(s)
| | | | - Luciana Xavier Pereira
- Department of Experimental PathologyUniversidade Federal de São João del‐ReiDivinópolisMinas GeraisBrazil
| | | | - Henning Ulrich
- Department of BiochemistryInstitute of ChemistryUniversity of São PauloSão PauloSão PauloBrazil
| | - Silvia Passos Andrade
- Department of Physiology and BiophysicsInstitute of Biological SciencesUniversidade Federal de Minas GeraisBelo HorizonteMinas GeraisBrazil
| | - Paula Peixoto Campos
- Department of General PathologyInstitute of Biological SciencesUniversidade Federal de Minas GeraisBelo HorizonteMinas GeraisBrazil
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Campos LA, dos Santos A, Sampaio MMB, Marôco J, Campos JADB. Exercise motives among university students - A Brazil-Portugal transnational study. Front Psychol 2022; 13:1009762. [PMID: 36452377 PMCID: PMC9702053 DOI: 10.3389/fpsyg.2022.1009762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/27/2022] [Indexed: 12/29/2023] Open
Abstract
BACKGROUND Identifying the motives why people exercise is interesting for the planning of effective health promoting strategies. OBJECTIVES To estimate the psychometric properties of the exercise motivations inventory (EMI-2) in Brazilian and Portuguese university students, and to compare motive-related factors for exercise among students. METHODS One thousand Brazilian (randomly splitted into "Test sample" [n = 498] and "Validation sample" [n = 502]) and 319 Portuguese students participated in this cross-sectional study. Motives for exercise were evaluated using EMI-2. Exploratory factor analysis was performed in the test sample. Then, confirmatory factor analysis was performed in the validation and Portuguese samples. The EMI-2 scores were compared according to sex, exercise, and weight status (ANOVA, α = 5%). RESULTS EMI-2 factor model was explained by 5 factors and presented adequate fit (χ 2/df ≤ 3.2; CFI ≥ 0.9; TLI ≥ 0.9; RMSEA ≤ 0.07; and α ≥ 0.83). The motives for exercising were mainly related to psychological and interpersonal factors for men, health-related factors for women, and body-related factors for overweight and obese individuals. People who practice exercise had higher EMI-2 scores. CONCLUSION The 5-factor model is suggested for a comprehensive assessment of motives for exercise. Individual characteristics should be considered for development of tailored protocols.
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Affiliation(s)
- Lucas Arrais Campos
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere University Hospital, Tampere, Finland
- Department of Morphology and Children’s Clinic, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Adrielly dos Santos
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - Mafalda Margarida Basto Sampaio
- William James Center for Research (WJCR), University Institute of Psychological, Social, and Life Sciences (ISPA), Lisbon, Portugal
| | - João Marôco
- William James Center for Research (WJCR), University Institute of Psychological, Social, and Life Sciences (ISPA), Lisbon, Portugal
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dos Santos AAC, Rodrigues LE, Alecrim-Zeza AL, de Araújo Ferreira L, Trettel CDS, Gimenes GM, da Silva AF, Sousa-Filho CPB, Serdan TDA, Levada-Pires AC, Hatanaka E, Borges FT, de Barros MP, Cury-Boaventura MF, Bertolini GL, Cassolla P, Marzuca-Nassr GN, Vitzel KF, Pithon-Curi TC, Masi LN, Curi R, Gorjao R, Hirabara SM. Molecular and cellular mechanisms involved in tissue-specific metabolic modulation by SARS-CoV-2. Front Microbiol 2022; 13:1037467. [PMID: 36439786 PMCID: PMC9684198 DOI: 10.3389/fmicb.2022.1037467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/26/2022] [Indexed: 09/09/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is triggered by the SARS-CoV-2, which is able to infect and cause dysfunction not only in lungs, but also in multiple organs, including central nervous system, skeletal muscle, kidneys, heart, liver, and intestine. Several metabolic disturbances are associated with cell damage or tissue injury, but the mechanisms involved are not yet fully elucidated. Some potential mechanisms involved in the COVID-19-induced tissue dysfunction are proposed, such as: (a) High expression and levels of proinflammatory cytokines, including TNF-α IL-6, IL-1β, INF-α and INF-β, increasing the systemic and tissue inflammatory state; (b) Induction of oxidative stress due to redox imbalance, resulting in cell injury or death induced by elevated production of reactive oxygen species; and (c) Deregulation of the renin-angiotensin-aldosterone system, exacerbating the inflammatory and oxidative stress responses. In this review, we discuss the main metabolic disturbances observed in different target tissues of SARS-CoV-2 and the potential mechanisms involved in these changes associated with the tissue dysfunction.
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Affiliation(s)
| | - Luiz Eduardo Rodrigues
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Amanda Lins Alecrim-Zeza
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Liliane de Araújo Ferreira
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Caio dos Santos Trettel
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Gabriela Mandú Gimenes
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Adelson Fernandes da Silva
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | | | - Tamires Duarte Afonso Serdan
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
- Department of Molecular Pathobiology, University of New York, New York, NY, United States
| | - Adriana Cristina Levada-Pires
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Elaine Hatanaka
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Fernanda Teixeira Borges
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
- Divisão de Nefrologia, Departamento de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Marcelo Paes de Barros
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Maria Fernanda Cury-Boaventura
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Gisele Lopes Bertolini
- Department of Physiological Sciences, Biological Science Center, State University of Londrina, Londrina, PR, Brazil
| | - Priscila Cassolla
- Department of Physiological Sciences, Biological Science Center, State University of Londrina, Londrina, PR, Brazil
| | | | - Kaio Fernando Vitzel
- School of Health Sciences, College of Health, Massey University, Auckland, New Zealand
| | - Tania Cristina Pithon-Curi
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Laureane Nunes Masi
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Rui Curi
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
- Instituto Butantan, São Paulo, Brazil
| | - Renata Gorjao
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
| | - Sandro Massao Hirabara
- Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil
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Groß R, Dias Loiola LM, Issmail L, Uhlig N, Eberlein V, Conzelmann C, Olari L, Rauch L, Lawrenz J, Weil T, Müller JA, Cardoso MB, Gilg A, Larsson O, Höglund U, Pålsson SA, Tvilum AS, Løvschall KB, Kristensen MM, Spetz A, Hontonnou F, Galloux M, Grunwald T, Zelikin AN, Münch J. Macromolecular Viral Entry Inhibitors as Broad-Spectrum First-Line Antivirals with Activity against SARS-CoV-2. Adv Sci (Weinh) 2022; 9:e2201378. [PMID: 35543527 PMCID: PMC9284172 DOI: 10.1002/advs.202201378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/11/2022] [Indexed: 05/03/2023]
Abstract
Inhibitors of viral cell entry based on poly(styrene sulfonate) and its core-shell nanoformulations based on gold nanoparticles are investigated against a panel of viruses, including clinical isolates of SARS-CoV-2. Macromolecular inhibitors are shown to exhibit the highly sought-after broad-spectrum antiviral activity, which covers most analyzed enveloped viruses and all of the variants of concern for SARS-CoV-2 tested. The inhibitory activity is quantified in vitro in appropriate cell culture models and for respiratory viral pathogens (respiratory syncytial virus and SARS-CoV-2) in mice. Results of this study comprise a significant step along the translational path of macromolecular inhibitors of virus cell entry, specifically against enveloped respiratory viruses.
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Affiliation(s)
- Rüdiger Groß
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Lívia Mesquita Dias Loiola
- Department of Chemistry and iNano Interdisciplinary Nanoscience CentreAarhus UniversityAarhus8000Denmark
- Brazilian Synchrotron Light LaboratoryBrazilian Center for Research in Energy and MaterialsCampinasSão Paulo13083‐970Brazil
| | - Leila Issmail
- Fraunhofer Institute for Cell Therapy and Immunology IZILeipzig04103Germany
| | - Nadja Uhlig
- Fraunhofer Institute for Cell Therapy and Immunology IZILeipzig04103Germany
| | - Valentina Eberlein
- Fraunhofer Institute for Cell Therapy and Immunology IZILeipzig04103Germany
| | - Carina Conzelmann
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Lia‐Raluca Olari
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Lena Rauch
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Jan Lawrenz
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Tatjana Weil
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Janis A. Müller
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | - Mateus Borba Cardoso
- Brazilian Synchrotron Light LaboratoryBrazilian Center for Research in Energy and MaterialsCampinasSão Paulo13083‐970Brazil
| | - Andrea Gilg
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
| | | | | | - Sandra Axberg Pålsson
- Department of Molecular BiosciencesThe Wenner‐Gren Institute Stockholm UniversityStockholm10691Sweden
| | - Anna Selch Tvilum
- Department of Chemistry and iNano Interdisciplinary Nanoscience CentreAarhus UniversityAarhus8000Denmark
| | - Kaja Borup Løvschall
- Department of Chemistry and iNano Interdisciplinary Nanoscience CentreAarhus UniversityAarhus8000Denmark
| | - Maria M. Kristensen
- Department of Chemistry and iNano Interdisciplinary Nanoscience CentreAarhus UniversityAarhus8000Denmark
| | - Anna‐Lena Spetz
- Department of Molecular BiosciencesThe Wenner‐Gren Institute Stockholm UniversityStockholm10691Sweden
| | | | - Marie Galloux
- Université Paris‐SaclayINRAE, UVSQ, VIMJouy‐en‐Josas78352France
| | - Thomas Grunwald
- Fraunhofer Institute for Cell Therapy and Immunology IZILeipzig04103Germany
| | - Alexander N. Zelikin
- Department of Chemistry and iNano Interdisciplinary Nanoscience CentreAarhus UniversityAarhus8000Denmark
| | - Jan Münch
- Institute of Molecular VirologyUlm University Medical CenterUlm89081Germany
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Pho H, Amorim MR, Qiu Q, Shin M, Kim LJ, Anokye‐Danso F, Jun JJ, Ahima RS, Branco LGS, Kuhn DM, Mateika JH, Polotsky VY. The effect of brain serotonin deficiency on breathing is magnified by age. Physiol Rep 2022; 10:e15245. [PMID: 35581741 PMCID: PMC9114658 DOI: 10.14814/phy2.15245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/25/2022] [Accepted: 03/13/2022] [Indexed: 11/24/2022] Open
Abstract
Serotonin is an important mediator modulating behavior, metabolism, sleep, control of breathing, and upper airway function, but the role of aging in serotonin-mediated effects has not been previously defined. Our study aimed to examine the effect of brain serotonin deficiency on breathing during sleep and metabolism in younger and older mice. We measured breathing during sleep, hypercapnic ventilatory response (HCVR), CO2 production (VCO2 ), and O2 consumption (VO2 ) in 16-18-week old and 40-44-week old mice with deficiency of tryptophan hydroxylase 2 (Tph2), which regulates serotonin synthesis specifically in neurons, compared to Tph2+/+ mice. As expected, aging decreased VCO2 and VO2 . Tph2 knockout resulted in an increase in both metabolic indexes and no interaction between age and the genotype was observed. During wakefulness, neither age nor genotype had an effect on minute ventilation. The genotype did not affect hypercapnic sensitivity in younger mice. During sleep, Tph2-/- mice showed significant decreases in maximal inspiratory flow in NREM sleep, respiratory rate, and oxyhemoglobin saturation in REM sleep, compared to wildtype, regardless of age. Neither serotonin deficiency nor aging affected the frequency of flow limited breaths (a marker of upper airway closure) or apneas. Serotonin deficiency increased the amount and efficiency of sleep only in older animals. In conclusion, younger Tph2-/- mice were able to defend their ventilation and phenotypically did not differ from wildtype during wakefulness. In contrast, both young and old Tph2-/- mice showed sleep-related hypoventilation, which was manifested by hypoxemia during REM sleep.
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Affiliation(s)
- Huy Pho
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Mateus R. Amorim
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Qingchao Qiu
- Department of PhysiologyWayne State UniversityDetroitMichiganUSA
| | - Mi‐Kyung Shin
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Lenise J. Kim
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Frederick Anokye‐Danso
- Division of Endocrinology, Diabetes, and MetabolismDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Jonathan J. Jun
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Rexford S. Ahima
- Division of Endocrinology, Diabetes, and MetabolismDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Luiz G. S. Branco
- Dental School of Ribeirão PretoUniversity of São PauloSão PauloBrazil
| | - Donald M. Kuhn
- Department of Psychiatry and Behavioral NeurosciencesWayne State University School of MedicineDetroitMichiganUSA
- John D. Dingell Veterans Affairs Medical CenterDetroitMichiganUSA
| | - Jason H. Mateika
- Department of PhysiologyWayne State UniversityDetroitMichiganUSA
- John D. Dingell Veterans Affairs Medical CenterDetroitMichiganUSA
- Department of Internal MedicineWayne State University School of MedicineDetroitMichiganUSA
| | - Vsevolod Y. Polotsky
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
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9
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Mannochio-Russo H, de Almeida RF, Nunes WDG, Bueno PCP, Caraballo-Rodríguez AM, Bauermeister A, Dorrestein PC, Bolzani VS. Untargeted Metabolomics Sheds Light on the Diversity of Major Classes of Secondary Metabolites in the Malpighiaceae Botanical Family. Front Plant Sci 2022; 13:854842. [PMID: 35498703 PMCID: PMC9047359 DOI: 10.3389/fpls.2022.854842] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Natural products produced by plants are one of the most investigated natural sources, which substantially contributed to the development of the natural products field. Even though these compounds are widely explored, the literature still lacks comprehensive investigations aiming to explore the evolution of secondary metabolites produced by plants, especially if classical methodologies are employed. The development of sensitive hyphenated techniques and computational tools for data processing has enabled the study of large datasets, being valuable assets for chemosystematic studies. Here, we describe a strategy for chemotaxonomic investigations using the Malpighiaceae botanical family as a model. Our workflow was based on MS/MS untargeted metabolomics, spectral searches, and recently described in silico classification tools, which were mapped into the latest molecular phylogeny accepted for this family. The metabolomic analysis revealed that different ionization modes and extraction protocols significantly impacted the chemical profiles, influencing the chemotaxonomic results. Spectral searches within public databases revealed several clades or genera-specific molecular families, being potential chemical markers for these taxa, while the in silico classification tools were able to expand the Malpighiaceae chemical space. The classes putatively annotated were used for ancestral character reconstructions, which recovered several classes of metabolites as homoplasies (i.e., non-exclusive) or synapomorphies (i.e., exclusive) for all sampled clades and genera. Our workflow combines several approaches to perform a comprehensive evolutionary chemical study. We expect it to be used on further chemotaxonomic investigations to expand chemical knowledge and reveal biological insights for compounds classes in different biological groups.
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Affiliation(s)
- Helena Mannochio-Russo
- NuBBE, Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, San Diego, CA, United States
| | - Rafael F. de Almeida
- Royal Botanical Gardens Kew, Science, Ecosystem Stewardship, Diversity and Livelihoods, Richmond, United Kingdom
- Department of Biological Sciences, Lamol Lab, Feira de Santana State University (UEFS), Feira de Santana, Brazil
| | - Wilhan D. G. Nunes
- Federal Institute of Education, Science and Technology of Rondônia (IFRO), Ji-Paraná, Brazil
| | - Paula C. P. Bueno
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
- Institute of Chemistry, Federal University of Alfenas (UNIFAL), Alfenas, Brazil
| | - Andrés M. Caraballo-Rodríguez
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, San Diego, CA, United States
| | - Anelize Bauermeister
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, San Diego, CA, United States
| | - Pieter C. Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, San Diego, CA, United States
| | - Vanderlan S. Bolzani
- NuBBE, Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
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10
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Strini EJ, Bertolino LT, San Martin JAB, Souza HAO, Pessotti F, Pinoti VF, Ferreira PB, De Paoli HC, Lubini G, Del-Bem LE, Quiapim AC, Mondin M, Araujo APU, Eloy NB, Barberis M, Goldman MHS. Stigma/Style Cell-Cycle Inhibitor 1, a Regulator of Cell Proliferation, Interacts With a Specific 14-3-3 Protein and Is Degraded During Cell Division. Front Plant Sci 2022; 13:857745. [PMID: 35444668 PMCID: PMC9013909 DOI: 10.3389/fpls.2022.857745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
The final shape and size of plant organs are determined by a network of genes that modulate cell proliferation and expansion. Among those, SCI1 (Stigma/style Cell-cycle Inhibitor 1) functions by inhibiting cell proliferation during pistil development. Alterations in SCI1 expression levels can lead to remarkable stigma/style size changes. Recently, we demonstrated that SCI1 starts to be expressed at the specification of the Nicotiana tabacum floral meristem and is expressed at all floral meristematic cells. To elucidate how SCI1 regulates cell proliferation, we screened a stigma/style cDNA library through the yeast two-hybrid (Y2H) system, using SCI1 as bait. Among the interaction partners, we identified the 14-3-3D protein of the Non-Epsilon group. The interaction between SCI1 and 14-3-3D was confirmed by pulldown and co-immunoprecipitation experiments. 14-3-3D forms homo- and heterodimers in the cytoplasm of plant cells and interacts with SCI1 in the nucleus, as demonstrated by Bimolecular Fluorescence Complementation (BiFC). Analyses of SCI1-GFP fluorescence through the cell-cycle progression revealed its presence in the nucleoli during interphase and prophase. At metaphase, SCI1-GFP fluorescence faded and was no longer detected at anaphase, reappearing at telophase. Upon treatment with the 26S proteasome inhibitor MG132, SCI1-GFP was stabilized during cell division. Site-directed mutagenesis of seven serines into alanines in the predicted 14-3-3 binding sites on the SCI1 sequence prevented its degradation during mitosis. Our results demonstrate that SCI1 degradation at the beginning of metaphase is dependent on the phosphorylation of serine residues and on the action of the 26S proteasome. We concluded that SCI1 stability/degradation is cell-cycle regulated, consistent with its role in fine-tuning cell proliferation.
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Affiliation(s)
- Edward J. Strini
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Lígia T. Bertolino
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Juca A. B. San Martin
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Hebréia A. O. Souza
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Francine Pessotti
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Vitor F. Pinoti
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Pedro B. Ferreira
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Henrique C. De Paoli
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Greice Lubini
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Luiz-Eduardo Del-Bem
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Andréa C. Quiapim
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Mateus Mondin
- Departamento de Genética, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo, Piracicaba, Brazil
| | - Ana Paula U. Araujo
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
| | - Nubia B. Eloy
- Departamento de Ciências Biológicas, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo, Piracicaba, Brazil
| | - Matteo Barberis
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Guildford, United Kingdom
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Maria Helena S. Goldman
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
- PPG-Genética, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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11
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Tunes P, Dötterl S, Guimarães E. Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination. Front Plant Sci 2022; 13:813418. [PMID: 35432434 PMCID: PMC9006511 DOI: 10.3389/fpls.2022.813418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Many flowers are fed on by florivores, but we know little about if and how feeding on flowers affects their visual and chemical advertisement and nectar resource, which could disrupt pollination. Here, we investigated if damages caused by florivores compromise a Neotropical hummingbird pollination system, by modifying the floral advertisements and the nectar resource. We surveyed natural florivory levels and patterns, examined short-term local effects of floral damages caused by the most common florivore, a caterpillar, on floral outline, intra-floral colour pattern and floral scent, as well as on the amount of nectar. Following, we experimentally tested if the most severe florivory pattern affected hummingbird pollination. The feeding activity of the most common florivore did not alter the intra-floral colour pattern, floral scent, and nectar volume, but changed the corolla outline. However, this change did not affect hummingbird pollination. Despite visual floral cues being important for foraging in hummingbirds, our results emphasise that changes in the corolla outline had a neutral effect on pollination, allowing the maintenance of florivore-plant-pollinator systems without detriment to any partner.
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Affiliation(s)
- Priscila Tunes
- Postgraduate Program in Biological Sciences (Botany), Institute of Biosciences, São Paulo State University, Botucatu, Brazil
- Laboratory of Ecology and Evolution of Plant-Animal Interactions, Institute of Biosciences, São Paulo State University, Botucatu, Brazil
| | - Stefan Dötterl
- Department of Environment and Biodiversity, Paris Lodron University of Salzburg, Salzburg, Austria
| | - Elza Guimarães
- Laboratory of Ecology and Evolution of Plant-Animal Interactions, Institute of Biosciences, São Paulo State University, Botucatu, Brazil
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12
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Wagstyl K, Whitaker K, Raznahan A, Seidlitz J, Vértes PE, Foldes S, Humphreys Z, Hu W, Mo J, Likeman M, Davies S, Lenge M, Cohen NT, Tang Y, Wang S, Ripart M, Chari A, Tisdall M, Bargallo N, Conde‐Blanco E, Pariente JC, Pascual‐Diaz S, Delgado‐Martínez I, Pérez‐Enríquez C, Lagorio I, Abela E, Mullatti N, O'Muircheartaigh J, Vecchiato K, Liu Y, Caligiuri M, Sinclair B, Vivash L, Willard A, Kandasamy J, McLellan A, Sokol D, Semmelroch M, Kloster A, Opheim G, Yasuda C, Zhang K, Hamandi K, Barba C, Guerrini R, Gaillard WD, You X, Wang I, González‐Ortiz S, Severino M, Striano P, Tortora D, Kalviainen R, Gambardella A, Labate A, Desmond P, Lui E, O'Brien T, Shetty J, Jackson G, Duncan JS, Winston GP, Pinborg L, Cendes F, Cross JH, Baldeweg T, Adler S. Atlas of lesion locations and postsurgical seizure freedom in focal cortical dysplasia: A MELD study. Epilepsia 2022; 63:61-74. [PMID: 34845719 PMCID: PMC8916105 DOI: 10.1111/epi.17130] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/07/2021] [Accepted: 11/08/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Drug-resistant focal epilepsy is often caused by focal cortical dysplasias (FCDs). The distribution of these lesions across the cerebral cortex and the impact of lesion location on clinical presentation and surgical outcome are largely unknown. We created a neuroimaging cohort of patients with individually mapped FCDs to determine factors associated with lesion location and predictors of postsurgical outcome. METHODS The MELD (Multi-centre Epilepsy Lesion Detection) project collated a retrospective cohort of 580 patients with epilepsy attributed to FCD from 20 epilepsy centers worldwide. Magnetic resonance imaging-based maps of individual FCDs with accompanying demographic, clinical, and surgical information were collected. We mapped the distribution of FCDs, examined for associations between clinical factors and lesion location, and developed a predictive model of postsurgical seizure freedom. RESULTS FCDs were nonuniformly distributed, concentrating in the superior frontal sulcus, frontal pole, and temporal pole. Epilepsy onset was typically before the age of 10 years. Earlier epilepsy onset was associated with lesions in primary sensory areas, whereas later epilepsy onset was associated with lesions in association cortices. Lesions in temporal and occipital lobes tended to be larger than frontal lobe lesions. Seizure freedom rates varied with FCD location, from around 30% in visual, motor, and premotor areas to 75% in superior temporal and frontal gyri. The predictive model of postsurgical seizure freedom had a positive predictive value of 70% and negative predictive value of 61%. SIGNIFICANCE FCD location is an important determinant of its size, the age at epilepsy onset, and the likelihood of seizure freedom postsurgery. Our atlas of lesion locations can be used to guide the radiological search for subtle lesions in individual patients. Our atlas of regional seizure freedom rates and associated predictive model can be used to estimate individual likelihoods of postsurgical seizure freedom. Data-driven atlases and predictive models are essential for evidence-based, precision medicine and risk counseling in epilepsy.
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13
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Fox CD, Mesquita PHC, Godwin JS, Angleri V, Damas F, Ruple BA, Sexton CL, Brown MD, Kavazis AN, Young KC, Ugrinowitsch C, Libardi CA, Roberts MD. Frequent Manipulation of Resistance Training Variables Promotes Myofibrillar Spacing Changes in Resistance-Trained Individuals. Front Physiol 2021; 12:773995. [PMID: 34975527 PMCID: PMC8715010 DOI: 10.3389/fphys.2021.773995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/17/2021] [Indexed: 11/21/2022] Open
Abstract
We sought to determine if manipulating resistance training (RT) variables differentially altered the expression of select sarcoplasmic and myofibril proteins as well as myofibrillar spacing in myofibers. Resistance-trained men (n = 20; 26 ± 3 years old) trained for 8 weeks where a randomized leg performed either a standard (CON) or variable RT protocol (VAR: manipulation of load, volume, muscle action, and rest intervals at each RT session). A pre-training (PRE) vastus lateralis biopsy was obtained from a randomized single leg, and biopsies were obtained from both legs 96 h following the last training bout. The sarcoplasmic protein pool was assayed for proteins involved in energy metabolism, and the myofibril protein pool was assayed for relative myosin heavy chain (MHC) and actin protein abundances. Sections were also histologically analyzed to obtain myofibril spacing characteristics. VAR resulted in ~12% greater volume load (VL) compared to CON (p < 0.001). The mean fiber cross-sectional area increased following both RT protocols [CON: 14.6% (775.5 μm2), p = 0.006; VAR: 13.9% (743.2 μm2), p = 0.01 vs. PRE for both], but without significant differences between protocols (p = 0.79). Neither RT protocol affected a majority of assayed proteins related to energy metabolism, but both training protocols increased hexokinase 2 protein levels and decreased a mitochondrial beta-oxidation marker (VLCAD protein; p < 0.05). Citrate synthase activity levels increased with CON RT (p < 0.05), but not VAR RT. The relative abundance of MHC (summed isoforms) decreased with both training protocols (p < 0.05). However, the relative abundance of actin protein (summed isoforms) decreased with VAR only (13.5 and 9.0%, respectively; p < 0.05). A decrease in percent area occupied by myofibrils was observed from PRE to VAR (−4.87%; p = 0.048), but not for the CON (4.53%; p = 0.979). In contrast, there was an increase in percent area occupied by non-contractile space from PRE to VAR (10.14%; p = 0.048), but not PRE to CON (0.72%; p = 0.979). In conclusion, while both RT protocols increased muscle fiber hypertrophy, a higher volume-load where RT variables were frequently manipulated increased non-contractile spacing in resistance-trained individuals.
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Affiliation(s)
- Carlton D. Fox
- School of Kinesiology, Auburn University, Auburn, AL, United States
| | | | - Joshua S. Godwin
- School of Kinesiology, Auburn University, Auburn, AL, United States
| | - Vitor Angleri
- MUSCULAB, Laboratory of Neuromuscular Adaptations to Resistance Training, Department of Physical Education, Federal University of São Carlos, São Carlos, Brazil
| | - Felipe Damas
- MUSCULAB, Laboratory of Neuromuscular Adaptations to Resistance Training, Department of Physical Education, Federal University of São Carlos, São Carlos, Brazil
| | - Bradley A. Ruple
- School of Kinesiology, Auburn University, Auburn, AL, United States
| | - Casey L. Sexton
- School of Kinesiology, Auburn University, Auburn, AL, United States
| | - Michael D. Brown
- School of Kinesiology, Auburn University, Auburn, AL, United States
| | | | - Kaelin C. Young
- School of Kinesiology, Auburn University, Auburn, AL, United States
- Department of Cell Biology and Physiology, Edward Via College of Osteopathic Medicine – Auburn Campus, Auburn, AL, United States
| | - Carlos Ugrinowitsch
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Cleiton A. Libardi
- MUSCULAB, Laboratory of Neuromuscular Adaptations to Resistance Training, Department of Physical Education, Federal University of São Carlos, São Carlos, Brazil
- *Correspondence: Cleiton A. Libardi, ; Michael D. Roberts,
| | - Michael D. Roberts
- School of Kinesiology, Auburn University, Auburn, AL, United States
- Department of Cell Biology and Physiology, Edward Via College of Osteopathic Medicine – Auburn Campus, Auburn, AL, United States
- *Correspondence: Cleiton A. Libardi, ; Michael D. Roberts,
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14
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Goulart ACC, Zângaro RA, Carvalho HC, Silveira L. Diagnosing COVID-19 in human sera with detected immunoglobulins IgM and IgG by means of Raman spectroscopy. J Raman Spectrosc 2021; 52:2671-2682. [PMID: 34518728 PMCID: PMC8427108 DOI: 10.1002/jrs.6235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/30/2021] [Accepted: 07/31/2021] [Indexed: 05/05/2023]
Abstract
The severe COVID-19 pandemic requires the development of novel, rapid, accurate, and label-free techniques that facilitate the detection and discrimination of SARS-CoV-2 infected subjects. Raman spectroscopy has been used to diagnose COVID-19 in serum samples of suspected patients without clinical symptoms of COVID-19 but presented positive immunoglobulins M and G (IgM and IgG) assays versus Control (negative IgM and IgG). A dispersive Raman spectrometer (830 nm, 350 mW) was employed, and triplicate spectra were obtained. A total of 278 spectra were used from 94 serum samples (54 Control and 40 COVID-19). The main spectral differences between the positive IgM and IgG versus Control, evaluated by principal component analysis (PCA), were features assigned to proteins including albumin (lower in the group COVID-19 and in the group IgM/IgG and IgG positive) and features assigned to lipids, phospholipids, and carotenoids (higher the group COVID-19 and in the group IgM/IgG positive). Features referred to nucleic acids, tryptophan, and immunoglobulins were also seen (higher the group COVID-19). A discriminant model based on partial least squares regression (PLS-DA) found sensitivity of 84.0%, specificity of 95.0%, and accuracy of 90.3% for discriminating positive Ig groups versus Control. When considering individual Ig group versus Control, it was found sensitivity of 77.3%, specificity of 97.5%, and accuracy of 88.8%. The higher classification error was found for the IgM group (no success classification). Raman spectroscopy may become a technique of choice for rapid serological evaluation aiming COVID-19 diagnosis, mainly detecting the presence of IgM/IgG and IgG after COVID-19 infection.
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Affiliation(s)
| | - Renato Amaro Zângaro
- Biomedical Engineering ProgramUniversidade Anhembi Morumbi – UAMSão PauloState of São PauloBrazil
- Laboratory of Vibrational SpectroscopyCenter for Innovation, Technology and Education – CITÉSão José dos CamposState of São PauloBrazil
| | - Henrique Cunha Carvalho
- Laboratory of Vibrational SpectroscopyCenter for Innovation, Technology and Education – CITÉSão José dos CamposState of São PauloBrazil
| | - Landulfo Silveira
- Biomedical Engineering ProgramUniversidade Anhembi Morumbi – UAMSão PauloState of São PauloBrazil
- Laboratory of Vibrational SpectroscopyCenter for Innovation, Technology and Education – CITÉSão José dos CamposState of São PauloBrazil
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15
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Sisodiya SM, Whelan CD, Hatton SN, Huynh K, Altmann A, Ryten M, Vezzani A, Caligiuri ME, Labate A, Gambardella A, Ives‐Deliperi V, Meletti S, Munsell BC, Bonilha L, Tondelli M, Rebsamen M, Rummel C, Vaudano AE, Wiest R, Balachandra AR, Bargalló N, Bartolini E, Bernasconi A, Bernasconi N, Bernhardt B, Caldairou B, Carr SJ, Cavalleri GL, Cendes F, Concha L, Desmond PM, Domin M, Duncan JS, Focke NK, Guerrini R, Hamandi K, Jackson GD, Jahanshad N, Kälviäinen R, Keller SS, Kochunov P, Kowalczyk MA, Kreilkamp BA, Kwan P, Lariviere S, Lenge M, Lopez SM, Martin P, Mascalchi M, Moreira JC, Morita‐Sherman ME, Pardoe HR, Pariente JC, Raviteja K, Rocha CS, Rodríguez‐Cruces R, Seeck M, Semmelroch MK, Sinclair B, Soltanian‐Zadeh H, Stein DJ, Striano P, Taylor PN, Thomas RH, Thomopoulos SI, Velakoulis D, Vivash L, Weber B, Yasuda CL, Zhang J, Thompson PM, McDonald CR. The ENIGMA-Epilepsy working group: Mapping disease from large data sets. Hum Brain Mapp 2020; 43:113-128. [PMID: 32468614 PMCID: PMC8675408 DOI: 10.1002/hbm.25037] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/01/2020] [Accepted: 05/03/2020] [Indexed: 02/06/2023] Open
Abstract
Epilepsy is a common and serious neurological disorder, with many different constituent conditions characterized by their electro clinical, imaging, and genetic features. MRI has been fundamental in advancing our understanding of brain processes in the epilepsies. Smaller-scale studies have identified many interesting imaging phenomena, with implications both for understanding pathophysiology and improving clinical care. Through the infrastructure and concepts now well-established by the ENIGMA Consortium, ENIGMA-Epilepsy was established to strengthen epilepsy neuroscience by greatly increasing sample sizes, leveraging ideas and methods established in other ENIGMA projects, and generating a body of collaborating scientists and clinicians to drive forward robust research. Here we review published, current, and future projects, that include structural MRI, diffusion tensor imaging (DTI), and resting state functional MRI (rsfMRI), and that employ advanced methods including structural covariance, and event-based modeling analysis. We explore age of onset- and duration-related features, as well as phenomena-specific work focusing on particular epilepsy syndromes or phenotypes, multimodal analyses focused on understanding the biology of disease progression, and deep learning approaches. We encourage groups who may be interested in participating to make contact to further grow and develop ENIGMA-Epilepsy.
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Affiliation(s)
- Sanjay M. Sisodiya
- Department of Clinical and Experimental EpilepsyUCL Queen Square Institute of NeurologyLondonUK
- Chalfont Centre for EpilepsyBucksUK
| | - Christopher D. Whelan
- Department of Molecular and Cellular TherapeuticsThe Royal College of Surgeons in IrelandDublinIreland
| | - Sean N. Hatton
- Center for Multimodal Imaging and GeneticsUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Khoa Huynh
- Center for Multimodal Imaging and GeneticsUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Andre Altmann
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
| | - Mina Ryten
- UCL Queen Square Institute of NeurologyLondonUK
| | - Annamaria Vezzani
- Department of NeuroscienceIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly
| | - Maria Eugenia Caligiuri
- Neuroscience Research Center, Department of Medical and Surgical SciencesUniversity “Magna Græcia" of CatanzaroCatanzaroItaly
| | - Angelo Labate
- Neuroscience Research Center, Department of Medical and Surgical SciencesUniversity “Magna Græcia" of CatanzaroCatanzaroItaly
- Institute of NeurologyUniversity “Magna Græcia" of CatanzaroCatanzaroItaly
| | - Antonio Gambardella
- Neuroscience Research Center, Department of Medical and Surgical SciencesUniversity “Magna Græcia" of CatanzaroCatanzaroItaly
- Institute of NeurologyUniversity “Magna Græcia" of CatanzaroCatanzaroItaly
| | | | - Stefano Meletti
- Department of Biomedical, Metabolic, and Neural SciencesUniversity of Modena and Reggio EmiliaModenaItaly
- Neurology UnitOCB Hospital, AOU ModenaModenaItaly
| | - Brent C. Munsell
- Department of PsychiatryUniversity of North CarolinaChapel HillNorth CarolinaUSA
- Department of Computer ScienceUniversity of North CarolinaChapel HillNorth CarolinaUSA
| | - Leonardo Bonilha
- Department of NeurologyMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | | | - Michael Rebsamen
- Support Center for Advanced NeuroimagingUniversity Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, University of BernBernSwitzerland
| | - Christian Rummel
- Support Center for Advanced NeuroimagingUniversity Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, University of BernBernSwitzerland
| | - Anna Elisabetta Vaudano
- Department of Biomedical, Metabolic, and Neural SciencesUniversity of Modena and Reggio EmiliaModenaItaly
- Neurology UnitOCB Hospital, AOU ModenaModenaItaly
| | - Roland Wiest
- Support Center for Advanced NeuroimagingUniversity Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, University of BernBernSwitzerland
| | - Akshara R. Balachandra
- Center for Multimodal Imaging and GeneticsUniversity of California San DiegoLa JollaCaliforniaUSA
- Boston University School of MedicineBostonMassachusettsUSA
| | - Núria Bargalló
- Magnetic Resonance Image Core FacilityInstitut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de BarcelonaBarcelonaSpain
- Radiology Department of Center of Image DiagnosisHospital Clinic de BarcelonaBarcelonaSpain
| | - Emanuele Bartolini
- Neurology UnitUSL Centro Toscana, Nuovo Ospedale Santo StefanoPratoItaly
| | - Andrea Bernasconi
- Neuroimaging of Epilepsy LaboratoryMontreal Neurological Institute, McGill UniversityMontrealQuébecCanada
| | - Neda Bernasconi
- Neuroimaging of Epilepsy LaboratoryMontreal Neurological Institute, McGill UniversityMontrealQuébecCanada
| | - Boris Bernhardt
- McConnell Brain Imaging CenterMontreal Neurological Institute, McGill UniversityMontrealQuébecCanada
| | - Benoit Caldairou
- Neuroimaging of Epilepsy LaboratoryMontreal Neurological Institute, McGill UniversityMontrealQuébecCanada
| | - Sarah J.A. Carr
- NeuroscienceInstitute of Psychiatry, Psychology and NeuroscienceLondonUK
| | - Gianpiero L. Cavalleri
- School of Pharmacy and Biomolecular SciencesThe Royal College of Surgeons in IrelandDublinIreland
- FutureNeuro SFI Research CentreDublinIreland
| | - Fernando Cendes
- Department of Neurology and Neuroimaging LaboratoryUniversity of Campinas – UNICAMPCampinasSão PauloBrazil
| | - Luis Concha
- Instituto de NeurobiologíaUniversidad Nacional Autónoma de MéxicoQuerétaroMexico
| | - Patricia M. Desmond
- Department of RadiologyRoyal Melbourne Hospital, University of MelbourneMelbourneVictoriaAustralia
| | - Martin Domin
- Functional Imaging Unit, Department of Diagnostic Radiology and NeuroradiologyUniversity Medicine GreifswaldGreifswaldGermany
| | - John S. Duncan
- Department of Clinical and Experimental EpilepsyUCL Queen Square Institute of NeurologyLondonUK
- Chalfont Centre for EpilepsyBucksUK
| | - Niels K. Focke
- University Medicine GöttingenClinical NeurophysiologyGöttingenGermany
| | - Renzo Guerrini
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and LaboratoriesChildren's Hospital A. Meyer‐University of FlorenceFlorenceItaly
| | - Khalid Hamandi
- The Wales Epilepsy Unit, Department of NeurologyUniversity Hospital of WalesCardiffUK
- Cardiff University Brain Research Imaging Centre, School of PsychologyCardiff UniversityCardiffUK
| | - Graeme D. Jackson
- Department of NeurologyAustin HealthHeidelbergVictoriaAustralia
- Florey Department of Neuroscience and Mental HealthUniversity of MelbourneVictoriaAustralia
| | - Neda Jahanshad
- Imaging Genetics CenterMark and Mary Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern CaliforniaMarina del ReyCaliforniaUSA
| | - Reetta Kälviäinen
- Kuopio University HospitalMember of EpiCARE ERNKuopioFinland
- Institute of Clinical MedicineNeurology, University of Eastern FinlandKuopioFinland
| | - Simon S. Keller
- Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
- The Walton CentreNHS Foundation TrustLiverpoolUK
| | - Peter Kochunov
- Department of PsychiatryUniversity of Maryland School of MedicineBaltimoreMarylandUSA
| | - Magdalena A. Kowalczyk
- Florey Department of Neuroscience and Mental HealthUniversity of MelbourneVictoriaAustralia
| | - Barbara A.K. Kreilkamp
- Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
- The Walton CentreNHS Foundation TrustLiverpoolUK
| | - Patrick Kwan
- Department of Neuroscience, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Sara Lariviere
- McConnell Brain Imaging CenterMontreal Neurological Institute, McGill UniversityMontrealQuébecCanada
| | - Matteo Lenge
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and LaboratoriesChildren's Hospital A. Meyer‐University of FlorenceFlorenceItaly
- Functional and Epilepsy Neurosurgery Unit, Neurosurgery DepartmentChildren's Hospital A. Meyer‐University of FlorenceFlorenceItaly
| | - Seymour M. Lopez
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
| | - Pascal Martin
- Department of Neurology and EpileptologyHertie Institute for Clinical Brain Research, University Hospital TübingenTübingenGermany
| | - Mario Mascalchi
- 'Mario Serio' Department of Clinical and Experimental Medical SciencesUniversity of FlorenceFlorenceItaly
| | - José C.V. Moreira
- Department of Neurology and Neuroimaging LaboratoryUniversity of Campinas – UNICAMPCampinasSão PauloBrazil
| | - Marcia E. Morita‐Sherman
- Department of Neurology and Neuroimaging LaboratoryUniversity of Campinas – UNICAMPCampinasSão PauloBrazil
- Cleveland Clinic Neurological InstituteClevelandOhioUSA
| | - Heath R. Pardoe
- Department of NeurologyNew York University School of MedicineNew YorkNew YorkUSA
| | - Jose C. Pariente
- Magnetic Resonance Image Core FacilityInstitut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de BarcelonaBarcelonaSpain
| | - Kotikalapudi Raviteja
- Department of Neurology and EpileptologyHertie Institute for Clinical Brain Research, University Hospital TübingenTübingenGermany
- Department of Diagnostic and Interventional NeuroradiologyUniversity Hospitals TübingenTübingenGermany
- Department of Clinical NeurophysiologyUniversity Hospital GöttingenGoettingenGermany
| | - Cristiane S. Rocha
- Department of Neurology and Neuroimaging LaboratoryUniversity of Campinas – UNICAMPCampinasSão PauloBrazil
| | - Raúl Rodríguez‐Cruces
- Instituto de NeurobiologíaUniversidad Nacional Autónoma de MéxicoQuerétaroMexico
- Montreal Neurological Institute and HospitalMcGill UniversityMontrealQuébecCanada
| | | | - Mira K.H.G. Semmelroch
- Florey Department of Neuroscience and Mental HealthUniversity of MelbourneVictoriaAustralia
- The Florey Institute of Neuroscience and Mental HealthAustin CampusHeidelbergVictoriaAustralia
| | - Benjamin Sinclair
- Department of NeuroscienceMonash UniversityMelbourneVictoriaAustralia
- Alfred HealthMelbourneVictoriaAustralia
| | - Hamid Soltanian‐Zadeh
- Radiology and Research AdministrationHenry Ford Health SystemDetroitMichiganUSA
- School of Electrical and Computer EngineeringCollege of Engineering, University of TehranTehranIran
| | - Dan J. Stein
- South African Medical Research Council Unit on Risk & Resilience in Mental Disorders, Dept of Psychiatry & Neuroscience InstituteUniversity of Cape Townon Risk & Resilience in Mental DisordersCape TownSouth Africa
| | - Pasquale Striano
- Pediatric Neurology and Muscular Diseases UnitIRCCS Istituto 'G. Gaslini'GenovaItaly
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child HealthUniversity of GenovaItaly
| | - Peter N. Taylor
- School of ComputingNewcastle UniversityNewcastle upon TyneUK
| | - Rhys H. Thomas
- Institute of Translational and Clinical ResearchNewcastle UniversityNewcastle upon TyneUK
| | - Sophia I. Thomopoulos
- Imaging Genetics CenterMark and Mary Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern CaliforniaMarina del ReyCaliforniaUSA
| | - Dennis Velakoulis
- Department of Medicine, Royal Melbourne HospitalUniversity of MelbourneParkvilleVictoriaUK
- Department of NeuropsychiatryRoyal Melbourne HospitalParkvilleVictoriaAustralia
| | - Lucy Vivash
- Department of NeuroscienceMonash UniversityMelbourneVictoriaAustralia
- Department of NeurologyRoyal Melbourne HospitalMelbourneVictoriaAustralia
| | - Bernd Weber
- Institute of Experimental Epileptology and Cognition ResearchUniversity of BonnBonnGermany
| | - Clarissa Lin Yasuda
- Department of Neurology and Neuroimaging LaboratoryUniversity of Campinas – UNICAMPCampinasSão PauloBrazil
| | - Junsong Zhang
- Cognitive Science DepartmentSchool of Informatics, Xiamen UniversityXiamenChina
| | - Paul M. Thompson
- Imaging Genetics CenterMark and Mary Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern CaliforniaMarina del ReyCaliforniaUSA
| | - Carrie R. McDonald
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
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