1
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Smirnova G, Tyulenev A, Sutormina L, Kalashnikova T, Muzyka N, Ushakov V, Samoilova Z, Oktyabrsky O. Regulation of Cysteine Homeostasis and Its Effect on Escherichia coli Sensitivity to Ciprofloxacin in LB Medium. Int J Mol Sci 2024; 25:4424. [PMID: 38674008 PMCID: PMC11050555 DOI: 10.3390/ijms25084424] [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: 03/28/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Cysteine and its derivatives, including H2S, can influence bacterial virulence and sensitivity to antibiotics. In minimal sulfate media, H2S is generated under stress to prevent excess cysteine and, together with incorporation into glutathione and export into the medium, is a mechanism of cysteine homeostasis. Here, we studied the features of cysteine homeostasis in LB medium, where the main source of sulfur is cystine, whose import can create excess cysteine inside cells. We used mutants in the mechanisms of cysteine homeostasis and a set of microbiological and biochemical methods, including the real-time monitoring of sulfide and oxygen, the determination of cysteine and glutathione (GSH), and the expression of the Fur, OxyR, and SOS regulons genes. During normal growth, the parental strain generated H2S when switching respiration to another substrate. The mutations affected the onset time, the intensity and duration of H2S production, cysteine and glutathione levels, bacterial growth and respiration rates, and the induction of defense systems. Exposure to chloramphenicol and high doses of ciprofloxacin increased cysteine content and GSH synthesis. A high inverse relationship between log CFU/mL and bacterial growth rate before ciprofloxacin addition was revealed. The study points to the important role of maintaining cysteine homeostasis during normal growth and antibiotic exposure in LB medium.
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Affiliation(s)
- Galina Smirnova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia; (A.T.); (L.S.); (T.K.); (N.M.); (V.U.); (Z.S.); (O.O.)
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2
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Kislov A, Shestakova A, Ushakov V, Martinez-Saito M, Beliaeva V, Savelo O, Vasilchuk A, Klucharev V. Correction: The Prediction of Market-level Food Choices by the Neural Valuation Signal. PLoS One 2023; 18:e0295161. [PMID: 38153930 PMCID: PMC10754434 DOI: 10.1371/journal.pone.0295161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pone.0286648.].
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3
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Kislov A, Shestakova A, Ushakov V, Martinez-Saito M, Beliaeva V, Savelo O, Vasilchuk A, Klucharev V. The prediction of market-level food choices by the neural valuation signal. PLoS One 2023; 18:e0286648. [PMID: 37267322 PMCID: PMC10237376 DOI: 10.1371/journal.pone.0286648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 05/18/2023] [Indexed: 06/04/2023] Open
Abstract
Neuroimaging studies have demonstrated the ability to use the brain activity of a group of individuals to forecast the behavior of an independent group. In the current study, we attempted to forecast aggregate choices in a popular restaurant chain. During our functional magnetic resonance imaging (fMRI) study, 22 participants were exposed to 78 photos of dishes from a new menu of a popular restaurant chain. In addition to self-reported preferences, fMRI data was extracted from an a priori domain-general and task-specific region of interest-the ventral striatum. We investigated the relationship between the neural activity and real one-year sales provided by the restaurant chain. Activity in the ventral striatum, which was defined using the task-specific region of interest, significantly correlated (r = 0.28, p = 0.01) with one-year sales. A regression analysis, which included ventral striatum activity together with the objective characteristics of the products (price and weight), behavioral, and survey data, showed R2 values of 0.33. Overall, our results confirm prior studies, which have suggested, that brain activity in the reward system of a relatively small number of individuals can forecast the aggregate choice of a larger independent group of people.
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Affiliation(s)
- Andrew Kislov
- International Laboratory of Social Neurobiology, Institute for Cognitive Neuroscience, HSE University, Moscow, Russia
| | - Anna Shestakova
- International Laboratory of Social Neurobiology, Institute for Cognitive Neuroscience, HSE University, Moscow, Russia
| | - Vadim Ushakov
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Moscow, Russia
| | - Mario Martinez-Saito
- International Laboratory of Social Neurobiology, Institute for Cognitive Neuroscience, HSE University, Moscow, Russia
| | - Valeria Beliaeva
- Decision Neuroscience Lab, Department of Health Sciences and Technology, ETH Zurich, Zürich, Switzerland
| | - Olga Savelo
- International Laboratory of Social Neurobiology, Institute for Cognitive Neuroscience, HSE University, Moscow, Russia
| | | | - Vasily Klucharev
- International Laboratory of Social Neurobiology, Institute for Cognitive Neuroscience, HSE University, Moscow, Russia
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4
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Smirnova G, Tyulenev A, Muzyka N, Ushakov V, Samoilova Z, Oktyabrsky O. Influence of Growth Medium Composition on Physiological Responses of Escherichia coli to the Action of Chloramphenicol and Ciprofloxacin. BioTech (Basel) 2023; 12:43. [PMID: 37366791 DOI: 10.3390/biotech12020043] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/03/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023] Open
Abstract
The ability of hydrogen sulfide (H2S) to protect bacteria from bactericidal antibiotics has previously been described. The main source of H2S is the desulfurization of cysteine, which is either synthesized by cells from sulfate or transported from the medium, depending on its composition. Applying electrochemical sensors and a complex of biochemical and microbiological methods, changes in growth, respiration, membrane potential, SOS response, H2S production and bacterial survival under the action of bactericidal ciprofloxacin and bacteriostatic chloramphenicol in commonly used media were studied. Chloramphenicol caused a sharp inhibition of metabolism in all studied media. The physiological response of bacteria to ciprofloxacin strongly depended on its dose. In rich LB medium, cells retained metabolic activity at higher concentrations of ciprofloxacin than in minimal M9 medium. This decreased number of surviving cells (CFU) by 2-3 orders of magnitude in LB compared to M9 medium, and shifted optimal bactericidal concentration (OBC) from 0.3 µg/mL in M9 to 3 µg/mL in LB. Both drugs induced transient production of H2S in M9 medium. In media containing cystine, H2S was produced independently of antibiotics. Thus, medium composition significantly modifies physiological response of E. coli to bactericidal antibiotic, which should be taken into account when interpreting data and developing drugs.
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Affiliation(s)
- Galina Smirnova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia
| | - Aleksey Tyulenev
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia
| | - Nadezda Muzyka
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia
| | - Vadim Ushakov
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia
| | - Zoya Samoilova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia
| | - Oleg Oktyabrsky
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, Goleva 13, 614081 Perm, Russia
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5
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Karpychev V, Bolgina T, Malytina S, Zinchenko V, Ushakov V, Ignatyev G, Dragoy O. Greater volumes of a callosal sub-region terminating in posterior language-related areas predict a stronger degree of language lateralization: A tractography study. PLoS One 2022; 17:e0276721. [PMID: 36520829 PMCID: PMC9754228 DOI: 10.1371/journal.pone.0276721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/13/2022] [Indexed: 12/23/2022] Open
Abstract
Language lateralization is the most intriguing trait of functional asymmetry for cognitive functions. Nowadays, ontogenetic determinants of this trait are largely unknown, but there are efforts to find its anatomical correlates. In particular, a white matter interhemispheric connection-the corpus callosum-has been proposed as such. In the present study, we aimed to find the association between the degree of language lateralization and metrics of the callosal sub-regions. We applied a sentence completion fMRI task to measure the degree of language lateralization in a group of healthy participants balanced for handedness. We obtained the volumes and microstructural properties of callosal sub-regions with two tractography techniques, diffusion tensor imaging (DTI) and constrained spherical deconvolution (CSD). The analysis of DTI-based metrics did not reveal any significant associations with language lateralization. In contrast, CSD-based analysis revealed that the volumes of a callosal sub-region terminating in the core posterior language-related areas predict a stronger degree of language lateralization. This finding supports the specific inhibitory model implemented through the callosal fibers projecting into the core posterior language-related areas in the degree of language lateralization, with no relevant contribution of other callosal sub-regions.
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Affiliation(s)
| | | | | | - Victoria Zinchenko
- Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Department of Health, Moscow, Russia
| | - Vadim Ushakov
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Moscow, Russia
| | | | - Olga Dragoy
- HSE University, Moscow, Russia
- Institute of Linguistics, Russian Academy of Sciences, Moscow, Russia
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6
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Zaidelman L, Nosovets Z, Kotov A, Ushakov V, Zabotkina V, Velichkovsky BM. Russian-language neurosemantics: Clustering of word meaning and sense from oral narratives. COGN SYST RES 2021. [DOI: 10.1016/j.cogsys.2021.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Nedoluzhko A, Gruzdeva N, Sharko F, Rastorguev S, Zakharova N, Kostyuk G, Ushakov V. The Biomarker and Therapeutic Potential of Circular Rnas in Schizophrenia. Cells 2020; 9:E2238. [PMID: 33020462 PMCID: PMC7601372 DOI: 10.3390/cells9102238] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are endogenous, single-stranded, most frequently non-coding RNA (ncRNA) molecules that play a significant role in gene expression regulation. Circular RNAs can affect microRNA functionality, interact with RNA-binding proteins (RBPs), translate proteins by themselves, and directly or indirectly modulate gene expression during different cellular processes. The affected expression of circRNAs, as well as their targets, can trigger a cascade of events in the genetic regulatory network causing pathological conditions. Recent studies have shown that altered circular RNA expression patterns could be used as biomarkers in psychiatric diseases, including schizophrenia (SZ); moreover, circular RNAs together with other cell molecules could provide new insight into mechanisms of this disorder. In this review, we focus on the role of circular RNAs in the pathogenesis of SZ and analyze their biomarker and therapeutic potential in this disorder.
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Affiliation(s)
- Artem Nedoluzhko
- Faculty of Biosciences and Aquaculture, Nord University, PB 1490. 8049 Bodø, Norway
- Mental-Health Clinic No. 1 Named after N.A. Alexeev, Moscow Healthcare Department, Zagorodnoye Highway, 2, 115191 Moscow, Russia; (N.Z.); (G.K.); (V.U.)
| | - Natalia Gruzdeva
- National Research Center “Kurchatov Institute”, 1st Akademika Kurchatova Square, 123182 Moscow, Russia; (N.G.); (F.S.); (S.R.)
| | - Fedor Sharko
- National Research Center “Kurchatov Institute”, 1st Akademika Kurchatova Square, 123182 Moscow, Russia; (N.G.); (F.S.); (S.R.)
- Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33/2, 119071 Moscow, Russia
| | - Sergey Rastorguev
- National Research Center “Kurchatov Institute”, 1st Akademika Kurchatova Square, 123182 Moscow, Russia; (N.G.); (F.S.); (S.R.)
| | - Natalia Zakharova
- Mental-Health Clinic No. 1 Named after N.A. Alexeev, Moscow Healthcare Department, Zagorodnoye Highway, 2, 115191 Moscow, Russia; (N.Z.); (G.K.); (V.U.)
| | - Georgy Kostyuk
- Mental-Health Clinic No. 1 Named after N.A. Alexeev, Moscow Healthcare Department, Zagorodnoye Highway, 2, 115191 Moscow, Russia; (N.Z.); (G.K.); (V.U.)
| | - Vadim Ushakov
- Mental-Health Clinic No. 1 Named after N.A. Alexeev, Moscow Healthcare Department, Zagorodnoye Highway, 2, 115191 Moscow, Russia; (N.Z.); (G.K.); (V.U.)
- Institute for Advanced Brain Studies, Lomonosov Moscow State University, Leninskiye Gory, 119899 Moscow, Russia
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8
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Feng C, Zhu Z, Cui Z, Ushakov V, Dreher JC, Luo W, Gu R, Wu X, Krueger F. Prediction of trust propensity from intrinsic brain morphology and functional connectome. Hum Brain Mapp 2020; 42:175-191. [PMID: 33001541 PMCID: PMC7721234 DOI: 10.1002/hbm.25215] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/31/2020] [Accepted: 09/09/2020] [Indexed: 01/08/2023] Open
Abstract
Trust forms the basis of virtually all interpersonal relationships. Although significant individual differences characterize trust, the driving neuropsychological signatures behind its heterogeneity remain obscure. Here, we applied a prediction framework in two independent samples of healthy participants to examine the relationship between trust propensity and multimodal brain measures. Our multivariate prediction analyses revealed that trust propensity was predicted by gray matter volume and node strength across multiple regions. The gray matter volume of identified regions further enabled the classification of individuals from an independent sample with the propensity to trust or distrust. Our modular and functional decoding analyses showed that the contributing regions were part of three large‐scale networks implicated in calculus‐based trust strategy, cost–benefit calculation, and trustworthiness inference. These findings do not only deepen our neuropsychological understanding of individual differences in trust propensity, but also provide potential biomarkers in predicting trust impairment in neuropsychiatric disorders.
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Affiliation(s)
- Chunliang Feng
- Key Laboratory of Brain, Cognition and Education Sciences (South China Normal University), Ministry of Education, Guangzhou, China.,School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Zhiyuan Zhu
- School of Artificial Intelligence, Beijing Normal University, Beijing, China.,Engineering Research Center of Intelligent Technology and Educational Application of Ministry of Education, Beijing Normal University, Beijing, China
| | - Zaixu Cui
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Vadim Ushakov
- National Research Center, Kurchatov Institute, Moscow, Russia.,National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Moscow, Russia
| | - Jean-Claude Dreher
- Neuroeconomics, Reward and Decision Making Laboratory, Institut des Sciences Cognitives Marc Jeannerod, CNRS, Bron, France
| | - Wenbo Luo
- Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China
| | - Ruolei Gu
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Xia Wu
- School of Artificial Intelligence, Beijing Normal University, Beijing, China.,Engineering Research Center of Intelligent Technology and Educational Application of Ministry of Education, Beijing Normal University, Beijing, China
| | - Frank Krueger
- School of Systems Biology, George Mason University, Fairfax, Virginia, USA.,Department of Psychology, George Mason University, Fairfax, Virginia, USA
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9
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Arsalidou M, Yaple Z, Jurcik T, Ushakov V. Cognitive Brain Signatures of Youth With Early Onset and Relatives With Schizophrenia: Evidence From fMRI Meta-analyses. Schizophr Bull 2020; 46:857-868. [PMID: 31978222 PMCID: PMC7345811 DOI: 10.1093/schbul/sbz130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Deficits in cognitive function are a major characteristic of schizophrenia. Many functional magnetic resonance imaging (fMRI) studies examine brain correlates of cognitive function in adults with schizophrenia, showing altered implication of associative areas such as the prefrontal cortex and temporal cortex. fMRI studies also examine brain representation of cognitive function in adolescents with early onset schizophrenia and those at risk of the disorder, yet results are often inconsistent. We compile and analyze data from eligible fMRI studies using quantitative meta-analyses to reveal concordant brain activity associated with adolescent relatives of patients with schizophrenia and those with early onset schizophrenia. Results show similar functional hubs of brain activity (eg, precuneus) yet in opposite hemispheres and clusters in ventrolateral rather than dorsolateral prefrontal cortices. Other areas of altered implication include the middle temporal gyrus, insula, and cerebellum. We discuss the findings in reference to the protracted maturation of the prefrontal cortex and possible effects due to the medication status of the two groups.
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Affiliation(s)
- Marie Arsalidou
- Department of Psychology, National Research University Higher School of Economics, Moscow, Russian Federation,Department of Psychology, Faculty of Health, York University, Toronto, ON, Canada,To whom correspondence should be addressed; Armyanskiy per. 4, c2, Moscow, 101000, room 406; tel: 1786-505-9779, e-mail: ; ;
| | - Zachary Yaple
- Department of Psychology, National University of Singapore, Singapore
| | - Tomas Jurcik
- Department of Psychology, National Research University Higher School of Economics, Moscow, Russian Federation
| | - Vadim Ushakov
- Kurchatov Department of NBICS-nature-like technologies, National Research Centre Kurchatov Institute, Moscow, Russian Federation,Department of Cybernetics, National Research Nuclear University “MEPhI”, Moscow, Russian Federation
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10
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Filyushkina V, Popov V, Medvednik R, Ushakov V, Batalov A, Tomskiy A, Pronin I, Sedov A. Hyperactivity of Basal Ganglia in Patients With Parkinson's Disease During Internally Guided Voluntary Movements. Front Neurol 2019; 10:847. [PMID: 31447766 PMCID: PMC6692433 DOI: 10.3389/fneur.2019.00847] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 07/22/2019] [Indexed: 11/13/2022] Open
Abstract
The contribution of different brain areas to internally guided (IG) and externally triggered (ET) movements has been a topic of debate. It has been hypothesized that IG movements are performed mainly through the basal ganglia-thalamocortical loop while ET movements are through the cerebello-thalamocortical pathway. We hypothesized that basal ganglia activity would be modified in patients with Parkinson's disease during IG movement as compared with normal subjects. We used functional MRI (fMRI) to investigate the differences between IG and ET motor tasks. Twenty healthy participants and 20 Parkinson's disease patients (OFF-state) were asked to perform hand movements in response to sound stimuli (ET) and in advance of the stimuli (IG). We showed that ET movements evoked activation of a few large clusters in the contralateral motor areas: the sensorimotor and premotor cortex, supplementary motor area (SMA), insula, putamen, motor thalamus and ipsilateral cerebellum. IG movements additionally evoked activation of a large number of small clusters distributed in different brain areas including the parietal and frontal lobes. Comparison between the activity of Parkinson's disease patients and healthy volunteers showed few important differences. We observed that along with the activity of the posterior areas, an activation of the anterior areas of putamen was observed during IG movements. We also found hyperactivity of the ventral thalamus for both movements. These results showed that IG movements in PD patients were made with the involvement of both sensorimotor and associative basal ganglia-thalamocortical loops.
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Affiliation(s)
- Veronika Filyushkina
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow, Russia
| | - Valentin Popov
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow, Russia.,Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, Russia
| | - Rita Medvednik
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow, Russia
| | - Vadim Ushakov
- National Research Centre "Kurchatov Institute", Moscow, Russia
| | - Artem Batalov
- Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, Russia
| | - Alexey Tomskiy
- Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, Russia
| | - Igor Pronin
- Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, Russia
| | - Alexey Sedov
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow, Russia.,Department of Physics of Living Systems, Moscow Institute of Physics and Technology, Moscow, Russia
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Marakshina J, Gromova D, Vartanov A, Kozlovskiy S, Kiselnikov A, Ushakov V, Buldakova N, Korosteleva A. Perceiving of emotional stimuli depends on its semantic meaning: an fMRI study. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Marakshina J, Vartanov A, Kiselnikov A, Kozlovskiy S, Ushakov V, Buldakova N, Skiteva L. Effect of eyedness on cognitive control. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Kozlovskiy S, Galanina A, Vartanov A, Kiselnikov A, Ushakov V, Buldakova N, Skiteva L. Hemispheric asymmetry in the perception of asymmetric faces. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Kozlovskiy S, Shirenova S, Vartanov A, Kiselnikov A, Ushakov V, Buldakova N, Kartashov S. Brain activity in face-name memory. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Kozlovskiy S, Kiselnikov A, Geguchadze T, Vartanov A, Ushakov V, Buldakova N, Kartashov S. Neurovisualization of multidimensional psychophysiological structure of consciousness during the elementary process of brightness discrimination. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Marakshina J, Kostanyan D, Vartanov A, Kozlovskiy S, Kiselnikov A, Ushakov V, Buldakova N, Korosteleva A. Visual and auditory system interaction: an fMRI study. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Kozlovskiy S, Kiselnikov A, Sergeev A, Vinitsky D, Vartanov A, Ushakov V, Buldakova N, Kartashov S. Default mode network is mechanism for semantic color-emotional interdomain integration. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tyulenev A, Smirnova G, Muzyka N, Ushakov V, Oktyabrsky O. The role of sulfides in stress-induced changes of Eh in Escherichia coli cultures. Bioelectrochemistry 2018; 121:11-17. [DOI: 10.1016/j.bioelechem.2017.12.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/06/2017] [Accepted: 12/22/2017] [Indexed: 11/25/2022]
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Portnova GV, Tetereva A, Balaev V, Atanov M, Skiteva L, Ushakov V, Ivanitsky A, Martynova O. Correlation of BOLD Signal with Linear and Nonlinear Patterns of EEG in Resting State EEG-Informed fMRI. Front Hum Neurosci 2018; 11:654. [PMID: 29375349 PMCID: PMC5767270 DOI: 10.3389/fnhum.2017.00654] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 12/21/2017] [Indexed: 01/08/2023] Open
Abstract
Concurrent EEG and fMRI acquisitions in resting state showed a correlation between EEG power in various bands and spontaneous BOLD fluctuations. However, there is a lack of data on how changes in the complexity of brain dynamics derived from EEG reflect variations in the BOLD signal. The purpose of our study was to correlate both spectral patterns, as linear features of EEG rhythms, and nonlinear EEG dynamic complexity with neuronal activity obtained by fMRI. We examined the relationships between EEG patterns and brain activation obtained by simultaneous EEG-fMRI during the resting state condition in 25 healthy right-handed adult volunteers. Using EEG-derived regressors, we demonstrated a substantial correlation of BOLD signal changes with linear and nonlinear features of EEG. We found the most significant positive correlation of fMRI signal with delta spectral power. Beta and alpha spectral features had no reliable effect on BOLD fluctuation. However, dynamic changes of alpha peak frequency exhibited a significant association with BOLD signal increase in right-hemisphere areas. Additionally, EEG dynamic complexity as measured by the HFD of the 2-20 Hz EEG frequency range significantly correlated with the activation of cortical and subcortical limbic system areas. Our results indicate that both spectral features of EEG frequency bands and nonlinear dynamic properties of spontaneous EEG are strongly associated with fluctuations of the BOLD signal during the resting state condition.
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Affiliation(s)
- Galina V Portnova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia.,Federal State Budgetary Educational Institution of Higher Education, Pushkin State Russian Language Institute, Moscow, Russia
| | - Alina Tetereva
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Vladislav Balaev
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Mikhail Atanov
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | | | - Vadim Ushakov
- National Research Centre Kurchatov Institute, Moscow, Russia
| | - Alexey Ivanitsky
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Olga Martynova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia.,Centre for Cognition and Decision Making, National Research University Higher School of Economics, Moscow, Russia
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Ushakov V, Sharaev MG, Kartashov SI, Zavyalova VV, Verkhlyutov VM, Velichkovsky BM. Dynamic Causal Modeling of Hippocampal Links within the Human Default Mode Network: Lateralization and Computational Stability of Effective Connections. Front Hum Neurosci 2016; 10:528. [PMID: 27826234 PMCID: PMC5078141 DOI: 10.3389/fnhum.2016.00528] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 10/04/2016] [Indexed: 01/10/2023] Open
Abstract
The purpose of this paper was to study causal relationships between left and right hippocampal regions (LHIP and RHIP, respectively) within the default mode network (DMN) as represented by its key structures: the medial prefrontal cortex (MPFC), posterior cingulate cortex (PCC), and the inferior parietal cortex of left (LIPC) and right (RIPC) hemispheres. Furthermore, we were interested in testing the stability of the connectivity patterns when adding or deleting regions of interest. The functional magnetic resonance imaging (fMRI) data from a group of 30 healthy right-handed subjects in the resting state were collected and a connectivity analysis was performed. To model the effective connectivity, we used the spectral Dynamic Causal Modeling (DCM). Three DCM analyses were completed. Two of them modeled interaction between five nodes that included four DMN key structures in addition to either LHIP or RHIP. The last DCM analysis modeled interactions between four nodes whereby one of the main DMN structures, PCC, was excluded from the analysis. The results of all DCM analyses indicated a high level of stability in the computational method: those parts of the winning models that included the key DMN structures demonstrated causal relations known from recent research. However, we discovered new results as well. First of all, we found a pronounced asymmetry in LHIP and RHIP connections. LHIP demonstrated a high involvement of DMN activity with preponderant information outflow to all other DMN regions. Causal interactions of LHIP were bidirectional only in the case of LIPC. On the contrary, RHIP was primarily affected by inputs from LIPC, RIPC, and LHIP without influencing these or other DMN key structures. For the first time, an inhibitory link was found from MPFC to LIPC, which may indicate the subjects’ effort to maintain a resting state. Functional connectivity data echoed these results, though they also showed links not reflected in the patterns of effective connectivity. We suggest that such lateralized architecture of hippocampal connections may be related to lateralization phenomena in verbal and spatial domains documented in human neurophysiology, neuropsychology, and neurolinguistics.
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Affiliation(s)
- Vadim Ushakov
- National Research Centre "Kurchatov Institute"Moscow, Russia; Department of Cybernetics, National Research Nuclear University "MEPhI"Moscow, Russia
| | | | - Sergey I Kartashov
- National Research Centre "Kurchatov Institute"Moscow, Russia; Department of Cybernetics, National Research Nuclear University "MEPhI"Moscow, Russia
| | - Viktoria V Zavyalova
- National Research Centre "Kurchatov Institute"Moscow, Russia; Higher School of Economics, National Research UniversityMoscow, Russia
| | - Vitaliy M Verkhlyutov
- Institute for Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences Moscow, Russia
| | - Boris M Velichkovsky
- National Research Centre "Kurchatov Institute"Moscow, Russia; NBICS-Faculty, Moscow Institute of Physics and TechnologyMoscow, Russia; Faculty of Psychology, M.V. Lomonosov Moscow State UniversityMoscow, Russia; Center for Cognitive Programs and Technologies, Russian State University for the HumanitiesMoscow, Russia; Applied Cognitive Research, Department of Psychology, Technische Universitaet DresdenDresden, Germany
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