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Ishihara Y, Numano T, Ito D, Nishijo H, Takamoto K, Kikuchi J, Konuma S, Oka H. Development of a suitable vibration pad for renal MR elastography. Magn Reson Imaging 2024; 109:120-126. [PMID: 38492785 DOI: 10.1016/j.mri.2024.03.013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
The aim of this study was to develop a vibration pad suitable for renal MR elastography (MRE). Chronic kidney disease (CKD) is a progressive condition affecting >800 million people worldwide. Renal fibrosis is a common pathological feature of CKD that causes fibrotic regions to be much stiffer than those in normal renal tissues. Therefore, MRE can be used to diagnose CKD because it can image organ stiffness. In MRE, the shear modulus is obtained from the wavelength of the shear waves. Therefore, it is highly important to propagate shear waves with sufficient vibration strength in the tissue. By using a three-dimensional (3D) printer, we created a "Flexible Pad" suitable for renal MRE. The Flexible Pad was placed under the back of the participant in the supine position and deformed in response to the participant's weight, adhering closely to the body surface. Six healthy volunteers participated in this study. Our Flexible Pad allowed for coherent shear waves (clear waves with little scattering and interference) to be efficiently transmitted to the kidney deep-lying tissues in the abdomen. The shear moduli of the kidney (n = 6) were 8.95 ± 0.84 kPa in the right kidney and 9.70 ± 0.99 kPa in the left kidney. Our results indicate that using our Flexible Pad for renal MRE can provide a more reliable measurement of renal shear modulus.
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Affiliation(s)
- Yoshito Ishihara
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Tomokazu Numano
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan.
| | - Daiki Ito
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan; Office of Radiation Technology, Keio University Hospital, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Hisao Nishijo
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, 2-1, Ichinomiya Gakuen-cho, Shimonoseki-shi, Yamaguchi 751-8503, Japan
| | - Koichi Takamoto
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, 2-1, Ichinomiya Gakuen-cho, Shimonoseki-shi, Yamaguchi 751-8503, Japan
| | - Jo Kikuchi
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Shota Konuma
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Hiromu Oka
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
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Thao PN, Nishijo M, Tai PT, Nghi TN, Yokawa T, Hoa VT, Tien TV, Kien NX, Anh TH, Nishino Y, Nishijo H. Impacts of dioxin exposure on brain connectivity estimated by DTI analysis of MRI images in men residing in contaminated areas of Vietnam. Front Neurosci 2024; 18:1344653. [PMID: 38726030 PMCID: PMC11079160 DOI: 10.3389/fnins.2024.1344653] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 04/15/2024] [Indexed: 05/12/2024] Open
Abstract
Introduction Effects of dioxin exposure on gray matter volume have been reported in previous studies, but a few studies reported effects of dioxin exposure on white matter structure. Therefore, this study was undertaken to investigate the impact of dioxin exposure on white matter microstructure in men living in the most severely dioxin-contaminated areas in Vietnam. Methods In 2019 brain MRI scans from 28 men living near Bien Hoa airbase were obtained at Dong Nai General Hospital, Vietnam, on a 3 T scanner using a conventional diffusion tensor imaging sequence. Two exposure markers were indicated by perinatal exposure estimated by assessment of maternal residency in a dioxin-contaminated area during pregnancy and by measurement of blood dioxin levels. A general linear model was used to compare fractional anisotropy (FA) values in 11 white matter tracts in both hemispheres between groups with and without perinatal dioxin exposure and groups with high and low blood dioxin levels after adjusting for covariates. Results The adjusted mean FA value in the left cingulum hippocampal part (CGH) was significantly lower in the perinatal dioxin exposure group compared with the group without perinatal dioxin exposure. The high blood TCDD group showed significantly reduced FA values in the left and right CGH and right uncinate fasciculus (UNC). Moreover, the high blood TEQ-PCDDs group showed significantly lower FA values in the left and right CGH and the left UNC. There were no significant differences in FA values between the groups with high and low TEQ-PCDFs levels or between the groups with high and low TEQ-PCDD/Fs levels. Discussion It was concluded that dioxin exposure during the perinatal period and adulthood may alter the microstructure of white matter tracts in individuals with neurodevelopmental disorders.
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Affiliation(s)
- Pham Ngoc Thao
- Department of Functional Diagnosis, Military Hospital 103, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Muneko Nishijo
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, Japan
| | - Pham The Tai
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Tran Ngoc Nghi
- Ministry of Health, Vietnamese Government, Hanoi, Vietnam
| | | | - Vu Thi Hoa
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Tran Viet Tien
- Department of Infectious and Tropical Diseases, Military Hospital 103, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Nguyen Xuan Kien
- Department of Military Medical Command and Organization, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Tran Hai Anh
- Department of Physiology, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Yoshikazu Nishino
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, Japan
| | - Hisao Nishijo
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, Yamaguchi, Japan
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Shibata T, Hattori N, Nishijo H, Kuroda S, Takakusaki K. Evolutionary origin of alpha rhythms in vertebrates. Front Behav Neurosci 2024; 18:1384340. [PMID: 38651071 PMCID: PMC11033391 DOI: 10.3389/fnbeh.2024.1384340] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
The purpose of this review extends beyond the traditional triune brain model, aiming to elucidate the evolutionary aspects of alpha rhythms in vertebrates. The forebrain, comprising the telencephalon (pallium) and diencephalon (thalamus, hypothalamus), is a common feature in the brains of all vertebrates. In mammals, evolution has prioritized the development of the forebrain, especially the neocortex, over the midbrain (mesencephalon) optic tectum, which serves as the prototype for the visual brain. This evolution enables mammals to process visual information in the retina-thalamus (lateral geniculate nucleus)-occipital cortex pathway. The origin of posterior-dominant alpha rhythms observed in mammals in quiet and dark environments is not solely attributed to cholinergic pontine nuclei cells functioning as a 10 Hz pacemaker in the brainstem. It also involves the ability of the neocortex's cortical layers to generate traveling waves of alpha rhythms with waxing and waning characteristics. The utilization of alpha rhythms might have facilitated the shift of attention from external visual inputs to internal cognitive processes as an adaptation to thrive in dark environments. The evolution of alpha rhythms might trace back to the dinosaur era, suggesting that enhanced cortical connectivity linked to alpha bands could have facilitated the development of nocturnal awakening in the ancestors of mammals. In fishes, reptiles, and birds, the pallium lacks a cortical layer. However, there is a lack of research clearly observing dominant alpha rhythms in the pallium or organized nuclear structures in fishes, reptiles, or birds. Through convergent evolution, the pallium of birds, which exhibits cortex-like fiber architecture, has not only acquired advanced cognitive and motor abilities but also the capability to generate low-frequency oscillations (4-25 Hz) resembling alpha rhythms. This suggests that the origins of alpha rhythms might lie in the pallium of a common ancestor of birds and mammals.
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Affiliation(s)
- Takashi Shibata
- Department of Neurosurgery, Toyama University Hospital, Toyama, Japan
- Department of Neurosurgery, Toyama Nishi General Hospital, Toyama, Japan
| | - Noriaki Hattori
- Department of Rehabilitation, Toyama University Hospital, Toyama, Japan
| | - Hisao Nishijo
- Faculty of Human Sciences, University of East Asia, Yamaguchi, Japan
| | - Satoshi Kuroda
- Department of Neurosurgery, Toyama University Hospital, Toyama, Japan
| | - Kaoru Takakusaki
- The Research Center for Brain Function and Medical Engineering, Asahikawa Medical University, Asahikawa, Japan
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Sharif A, Matsumoto J, Choijiljav C, Badarch A, Setogawa T, Nishijo H, Nishimaru H. Characterization of Ultrasonic Vocalization-Modulated Neurons in Rat Motor Cortex Based on Their Activity Modulation and Axonal Projection to the Periaqueductal Gray. eNeuro 2024; 11:ENEURO.0452-23.2024. [PMID: 38490744 PMCID: PMC10988357 DOI: 10.1523/eneuro.0452-23.2024] [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: 10/31/2023] [Revised: 12/13/2023] [Accepted: 01/02/2024] [Indexed: 03/17/2024] Open
Abstract
Vocalization, a means of social communication, is prevalent among many species, including humans. Both rats and mice use ultrasonic vocalizations (USVs) in various social contexts and affective states. The motor cortex is hypothesized to be involved in precisely controlling USVs through connections with critical regions of the brain for vocalization, such as the periaqueductal gray matter (PAG). However, it is unclear how neurons in the motor cortex are modulated during USVs. Moreover, the relationship between USV modulation of neurons and anatomical connections from the motor cortex to PAG is also not clearly understood. In this study, we first characterized the activity patterns of neurons in the primary and secondary motor cortices during emission of USVs in rats using large-scale electrophysiological recordings. We also examined the axonal projection of the motor cortex to PAG using retrograde labeling and identified two clusters of PAG-projecting neurons in the anterior and posterior parts of the motor cortex. The neural activity patterns around the emission of USVs differed between the anterior and posterior regions, which were divided based on the distribution of PAG-projecting neurons in the motor cortex. Furthermore, using optogenetic tagging, we recorded the USV modulation of PAG-projecting neurons in the posterior part of the motor cortex and found that they showed predominantly sustained excitatory responses during USVs. These results contribute to our understanding of the involvement of the motor cortex in the generation of USV at the neuronal and circuit levels.
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Affiliation(s)
- Aamir Sharif
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Jumpei Matsumoto
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science, University of Toyama, Toyama 930-0194, Japan
| | - Chinzorig Choijiljav
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Amarbayasgalant Badarch
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Tsuyoshi Setogawa
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science, University of Toyama, Toyama 930-0194, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science, University of Toyama, Toyama 930-0194, Japan
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, Shimonoseki 751-0807, Japan
| | - Hiroshi Nishimaru
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science, University of Toyama, Toyama 930-0194, Japan
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Dang TN, Tien SN, Ochi R, Le Trung D, Nishio K, Kuwamura H, Kurose T, Fujita N, Nishijo H, Nakamura Y, Hisaoka-Nakashima K, Morioka N, Urakawa S. Enhanced anxiety-like behavior induced by chronic neuropathic pain and related parvalbumin-positive neurons in male rats. Behav Brain Res 2024; 459:114786. [PMID: 38036265 DOI: 10.1016/j.bbr.2023.114786] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/19/2023] [Accepted: 11/23/2023] [Indexed: 12/02/2023]
Abstract
Anxiety commonly co-occurs with and exacerbates pain, but the interaction between pain progression and anxiety, and its underlying mechanisms remain unclear. Inhibitory interneurons play a crucial role in maintaining normal central nervous system function and are suggested to be involved in pain-induced anxiety. This study aimed to elucidate the time-dependent effects of neuropathic pain on the developmental anxiety-like behaviors and related inhibitory interneurons; parvalbumin (PV)- and cholecystokinin (CCK)-positive neurons in corticolimbic regions. Using an 8-week-old male Wistar rat model with partial sciatic nerve ligation (pSNL), anxiety-like behaviors were biweekly assessed post-surgery through open field (OF) and elevated plus maze (EPM) tests. From 4 weeks post-surgery, pSNL rats exhibited reduced OF center time, rearing, and initial activity, along with diminished EPM open-arm activities (time spent, head dips, movement, and rearing), which correlated with the paw withdrawal threshold. These effects were absent at 2 weeks post-surgery. At 8 weeks post-surgery, specific behaviors (decreased total rearing and increased inactive time in EPM) were observed in the pSNL group. Immunohistochemistry revealed changes in PV- and CCK-positive neurons in specific corticolimbic subregions of pSNL rats at 8 weeks post-surgery. Notably, PV-positive neuron densities in the basolateral amygdaloid complex (BLC) and hippocampal cornu ammonis areas 1 and 2 correlated with anxiety-like behavioral parameters. PV-positive neurons in the BLC of pSNL rats were predominantly changed in large-cell subtypes and were less activated. These findings indicate that anxiety-like behaviors emerge in the late phase of neuropathic pain and relate to PV-positive neurons in corticolimbic regions of pSNL rats.
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Affiliation(s)
- Thu Nguyen Dang
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Son Nguyen Tien
- Department of Rheumatology and Endocrinology, Military Hospital 103, Vietnam Military Medical University, No. 261 Phung Hung Street, Ha Dong District, Hanoi 12108, Viet Nam
| | - Ryosuke Ochi
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Duc Le Trung
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Kyo Nishio
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Hiroki Kuwamura
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Tomoyuki Kurose
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Hisao Nishijo
- Faculty of Human Sciences, University of East Asia, 2-12-1 Ichinomiya Gakuen-cho, Shimonoseki City, Yamaguchi 751-8503, Japan
| | - Yoki Nakamura
- Department of Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Kazue Hisaoka-Nakashima
- Department of Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Norimitsu Morioka
- Department of Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan.
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Thao PN, Nishijo M, Tai PT, Nghi TN, Hoa VT, Anh TH, Tien TV, Nishino Y, Nishijo H. Impacts of perinatal dioxin exposure on gaze behavior in 2-year-old children in the largest dioxin-contaminated area in Vietnam. Sci Rep 2023; 13:20679. [PMID: 38001134 PMCID: PMC10673870 DOI: 10.1038/s41598-023-47893-0] [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: 06/19/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023] Open
Abstract
Fifty-five children aged 2 years from a birth cohort in the largest dioxin-contaminated area in Bien Hoa city, Vietnam participated in this survey to examine gaze behavior. Exposure levels were indicated by 2,3,7,8-tetrachlorodibenzo-p-dibenzodioxin (TCDD) and toxic equivalent of polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (TEQ-PCDD/Fs) levels in maternal breast milk. The percentage of the total fixation duration on the face (% Face), mouth (% Mouth), and eye areas (% Eyes) when viewing silent and conversation scenes was used as gaze behavior indices. When they reached 3-year-old, autistic behavior was assessed using the Autism Spectrum Rating Scale (ASRS). A general linear model adjusted for confounding factors was used to compare gaze indices and ASRS scores between high and low dioxin exposure groups. Effects of perinatal dioxin exposure on gaze behavior were found only when viewing conversation scenes indicated by lower % Face for boys in high TCDD exposure group and lower % Eyes for girls in high TEQ-PCDD/Fs group. Increased autistic traits showed by higher ASRS scores at 3-year-old were found in both gender in the high TCDD exposure group. These findings indicate that perinatal TCDD and TEQ-PCDD/Fs exposure may reduce gaze behavior in 2-year-old children, predicting increased autistic traits at 3-year-old.
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Affiliation(s)
- Pham Ngoc Thao
- Department of Functional Diagnosis, 103 Military Hospital, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, 12108, Ha Noi, Vietnam.
- Department of Functional Diagnosis, 103 Military Hospital, Vietnam Military Medical University, 261 Phung Hung Street, Phuc La Commune, Ha Dong District, Ha Noi, Vietnam.
| | - Muneko Nishijo
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Pham The Tai
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 12108, Ha Noi, Vietnam
| | - Tran Ngoc Nghi
- Ministry of Health, Vietnamese Government, Hanoi, Vietnam
| | - Vu Thi Hoa
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Tran Hai Anh
- Department of Physiology, Vietnam Military Medical University, 12108, Ha Noi, Vietnam
| | - Tran Viet Tien
- Department of Tropical and Infectious diseases, 103 Military Hospital, Vietnam Military Medical University, 12108, Ha Noi, Vietnam
| | - Yoshikazu Nishino
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Hisao Nishijo
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, Shimonoseki-Shi, Yamaguchi, 751-8503, Japan
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Ishikuro K, Hattori N, Otomune H, Furuya K, Nakada T, Miyahara K, Shibata T, Noguchi K, Kuroda S, Nakatsuji Y, Nishijo H. Neural Mechanisms of Neuro-Rehabilitation Using Transcranial Direct Current Stimulation (tDCS) over the Front-Polar Area. Brain Sci 2023; 13:1604. [PMID: 38002563 PMCID: PMC10670271 DOI: 10.3390/brainsci13111604] [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: 10/04/2023] [Revised: 10/30/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation (NIBS) technique that applies a weak current to the scalp to modulate neuronal excitability by stimulating the cerebral cortex. The technique can produce either somatic depolarization (anodal stimulation) or somatic hyperpolarization (cathodal stimulation), based on the polarity of the current used by noninvasively stimulating the cerebral cortex with a weak current from the scalp, making it a NIBS technique that can modulate neuronal excitability. Thus, tDCS has emerged as a hopeful clinical neuro-rehabilitation treatment strategy. This method has a broad range of potential uses in rehabilitation medicine for neurodegenerative diseases, including Parkinson's disease (PD). The present paper reviews the efficacy of tDCS over the front-polar area (FPA) in healthy subjects, as well as patients with PD, where tDCS is mainly applied to the primary motor cortex (M1 area). Multiple evidence lines indicate that the FPA plays a part in motor learning. Furthermore, recent studies have reported that tDCS applied over the FPA can improve motor functions in both healthy adults and PD patients. We argue that the application of tDCS to the FPA promotes motor skill learning through its effects on the M1 area and midbrain dopamine neurons. Additionally, we will review other unique outcomes of tDCS over the FPA, such as effects on persistence and motivation, and discuss their underlying neural mechanisms. These findings support the claim that the FPA could emerge as a new key brain region for tDCS in neuro-rehabilitation.
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Affiliation(s)
- Koji Ishikuro
- Department of Rehabilitation, Toyama University Hospital, Toyama 930-0194, Japan; (K.I.); (N.H.); (H.O.); (K.F.); (T.N.)
| | - Noriaki Hattori
- Department of Rehabilitation, Toyama University Hospital, Toyama 930-0194, Japan; (K.I.); (N.H.); (H.O.); (K.F.); (T.N.)
| | - Hironori Otomune
- Department of Rehabilitation, Toyama University Hospital, Toyama 930-0194, Japan; (K.I.); (N.H.); (H.O.); (K.F.); (T.N.)
| | - Kohta Furuya
- Department of Rehabilitation, Toyama University Hospital, Toyama 930-0194, Japan; (K.I.); (N.H.); (H.O.); (K.F.); (T.N.)
| | - Takeshi Nakada
- Department of Rehabilitation, Toyama University Hospital, Toyama 930-0194, Japan; (K.I.); (N.H.); (H.O.); (K.F.); (T.N.)
| | - Kenichiro Miyahara
- Department of Physical Therapy, Toyama College of Medical Welfare, Toyama 930-0194, Japan;
| | - Takashi Shibata
- Department of Neurosurgery, Toyama Nishi General Hospital, Toyama 939-2716, Japan;
- Department of Neurosurgery, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
| | - Kyo Noguchi
- Department of Radiology, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
| | - Satoshi Kuroda
- Department of Neurosurgery, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
| | - Yuji Nakatsuji
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
| | - Hisao Nishijo
- Faculty of Human Sciences, University of East Asia, Shimonoseki 751-8503, Japan
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Le DT, Tsuyuhara M, Kuwamura H, Kitano K, Nguyen TD, Duc Nguyen T, Fujita N, Watanabe T, Nishijo H, Mihara M, Urakawa S. Regional activity and effective connectivity within the frontoparietal network during precision walking with visual cueing: an fNIRS study. Cereb Cortex 2023; 33:11157-11169. [PMID: 37757479 DOI: 10.1093/cercor/bhad354] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023] Open
Abstract
Precision walking (PW) incorporates precise step adjustments into regular walking patterns to navigate challenging surroundings. However, the brain processes involved in PW control, which encompass cortical regions and interregional interactions, are not fully understood. This study aimed to investigate the changes in regional activity and effective connectivity within the frontoparietal network associated with PW. Functional near-infrared spectroscopy data were recorded from adult subjects during treadmill walking tasks, including normal walking (NOR) and PW with visual cues, wherein the intercue distance was either fixed (FIX) or randomly varied (VAR) across steps. The superior parietal lobule (SPL), dorsal premotor area (PMd), supplementary motor area (SMA), and dorsolateral prefrontal cortex (dlPFC) were specifically targeted. The results revealed higher activities in SMA and left PMd, as well as left-to-right SPL connectivity, in VAR than in FIX. Activities in SMA and right dlPFC, along with dlPFC-to-SPL connectivity, were higher in VAR than in NOR. Overall, these findings provide insights into the roles of different brain regions and connectivity patterns within the frontoparietal network in facilitating gait control during PW, providing a useful baseline for further investigations into brain networks involved in locomotion.
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Affiliation(s)
- Duc Trung Le
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
- Department of Neurology, Vietnam Military Medical University, No. 261 Phung Hung Street, Ha Dong District, Hanoi 12108, Vietnam
| | - Masato Tsuyuhara
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Hiroki Kuwamura
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Kento Kitano
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Thu Dang Nguyen
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Thuan Duc Nguyen
- Department of Neurology, Vietnam Military Medical University, No. 261 Phung Hung Street, Ha Dong District, Hanoi 12108, Vietnam
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
| | - Tatsunori Watanabe
- Faculty of Health Sciences, Aomori University of Health and Welfare, 58-1 Mase, Hamadate, Aomori-city, Aomori 030-8505, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, Sugitani 2630, Toyama 930-0194, Japan
- Faculty of Human Sciences, University of East Asia, 2-12-1 Ichinomiya Gakuen-cho, Shimonoseki City, Yamaguchi 751-8503, Japan
| | - Masahito Mihara
- Department of Neurology, Kawasaki Medical School, 577 Matsushima, Kurashiki City, Okayama 701-0192, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima 734-8553, Japan
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9
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Vu HT, Pham TN, Nishijo M, Yokawa T, Pham The T, Takiguchi T, Nishino Y, Nishijo H. Impact of dioxin exposure on brain morphometry and social anxiety in men living in the most dioxin-contaminated area in Vietnam. J Psychiatr Res 2023; 166:169-177. [PMID: 37774667 DOI: 10.1016/j.jpsychires.2023.09.002] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 06/16/2023] [Accepted: 09/13/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND Previously, we reported that the global brain volume was significantly higher in men with estimated perinatal dioxin exposure in Vietnam. In this study, we aimed to clarify which brain lobes, consisting of several gyri, contributed to the increased global brain volume. We then analyzed associations between changes in brain volume and social anxiety symptoms to investigate the role of structural changes of the brain on social anxiety following perinatal dioxin exposure. METHODS Thirty-three men living near the dioxin-contaminated Bien Hoa airbase, underwent MRI examination. The regional gray matter volumes were extracted using the SPM12 in a MATLAB environment, and compared between subgroups with and without perinatal dioxin exposure estimated from their maternal residency in Bien Hoa during pregnancy. The social anxiety questionnaire for adults (SAQ-A30) was used to assess social anxiety. RESULTS In both hemispheres, higher gray matter volume in the frontal and temporal lobes, particularly in the superior frontal gyrus, superior temporal gyrus, and temporal pole were found in men with perinatal dioxin exposure. Superior temporal gyrus volume was significantly higher in men with perinatal exposure also after adjusting for reduction of its volume associated with increasing 1,2,3,7,8-PentaCDD levels in blood. Increased volume of these gyri, which showed higher volume in men with perinatal exposure, was associated with increased SAQ-A30 scores. CONCLUSION Perinatal dioxin exposure may increase the brain volume of gyri involved in social behavior, which was associated with increased social anxiety symptoms, suggesting functional effects accompanied the morphological effects of dioxin exposure.
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Affiliation(s)
- Hoa Thi Vu
- Department of Public Health, Kanazawa Medical University, Japan; Biomedical and Pharmaceutical Research Center, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Thao Ngoc Pham
- Department of Functional Diagnosis, 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Muneko Nishijo
- Department of Public Health, Kanazawa Medical University, Japan.
| | | | - Tai Pham The
- Biomedical and Pharmaceutical Research Center, Vietnam Military Medical University, Hanoi, Viet Nam
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10
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Oberto VJ, Matsumoto J, Pompili MN, Todorova R, Papaleo F, Nishijo H, Venance L, Vandecasteele M, Wiener SI. Rhythmic oscillations in the midbrain dopaminergic nuclei in mice. Front Cell Neurosci 2023; 17:1131313. [PMID: 37426551 PMCID: PMC10326437 DOI: 10.3389/fncel.2023.1131313] [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: 12/24/2022] [Accepted: 05/29/2023] [Indexed: 07/11/2023] Open
Abstract
Introduction Dopamine release in the forebrain by midbrain ventral tegmental nucleus (VTA) and substantia nigra pars compacta (SNc) neurons is implicated in reward processing, goal-directed learning, and decision-making. Rhythmic oscillations of neural excitability underlie coordination of network processing, and have been reported in these dopaminergic nuclei at several frequency bands. This paper provides a comparative characterization of several frequencies of oscillations of local field potential and single unit activity, highlighting some behavioral correlates. Methods We recorded from optogenetically identified dopaminergic sites in four mice training in operant olfactory and visual discrimination tasks. Results Rayleigh and Pairwise Phase Consistency (PPC) analyses revealed some VTA/SNc neurons phase-locked to each frequency range, with fast spiking interneurons (FSIs) prevalent at 1-2.5 Hz (slow) and 4 Hz bands, and dopaminergic neurons predominant in the theta band. More FSIs than dopaminergic neurons were phase-locked in the slow and 4 Hz bands during many task events. The highest incidence of phase-locking in neurons was in the slow and 4 Hz bands, and occurred during the delay between the operant choice and trial outcome (reward or punishment) signals. Discussion These data provide a basis for further examination of rhythmic coordination of activity of dopaminergic nuclei with other brain structures, and its impact for adaptive behavior.
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Affiliation(s)
- Virginie J. Oberto
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Université PSL, Paris, France
- Neuro-Electronics Research Flanders, Leuven, Belgium
| | | | - Marco N. Pompili
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Université PSL, Paris, France
| | - Ralitsa Todorova
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Université PSL, Paris, France
| | - Francesco Papaleo
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia, Genova, Italy
| | - Hisao Nishijo
- System Emotional Science, University of Toyama, Toyama, Japan
| | - Laurent Venance
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Université PSL, Paris, France
| | - Marie Vandecasteele
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Université PSL, Paris, France
| | - Sidney I. Wiener
- Center for Interdisciplinary Research in Biology (CIRB), College de France, CNRS, INSERM, Université PSL, Paris, France
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11
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Shimizu T, Fujii T, Hanita K, Shinozaki R, Takamura Y, Suzuki Y, Kageyama T, Kato M, Nishijo H, Tominaga M, Sakai H. Polycystic kidney disease 2-like 1 channel contributes to the bitter aftertaste perception of quinine. Sci Rep 2023; 13:4271. [PMID: 36922541 PMCID: PMC10017821 DOI: 10.1038/s41598-023-31322-3] [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: 08/23/2022] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
Bitterness is an important physiological function in the defense responses to avoid toxic foods. The taste receptor 2 family is well known to mediate bitter taste perception in Type II taste cells. Here, we report that the polycystic kidney disease 2-like 1 (PKD2L1) channel is a novel sensor for the bitter aftertaste in Type III taste cells. The PKD2L1 channel showed rebound activation after the washout of quinine, a bitter tastant, in electrophysiological whole-cell recordings of the PKD2L1-expressing HEK293T cells and Ca2+-imaging analysis of Type III taste cells isolated from wild-type PKD2L1 mice. In the short-term two-bottle preference and lick tests in vivo, the wild-type mice avoided normal water while the PKD2L1-knockout mice preferred normal water after they ingested the quinine-containing water. These results may explain the new mechanism of the quinine-triggered bitter aftertaste perception in Type III taste cells.
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Affiliation(s)
- Takahiro Shimizu
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
| | - Takuto Fujii
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Keisuke Hanita
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Ryo Shinozaki
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Yusaku Takamura
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, 930-0194, Japan
| | - Yoshiro Suzuki
- Division of Cell Signaling, National Institute for Physiological Sciences, National Institutes of Natural Sciences (NIPS), Okazaki, 444-8787, Japan
| | - Teppei Kageyama
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Mizuki Kato
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, 930-0194, Japan
| | - Makoto Tominaga
- Division of Cell Signaling, National Institute for Physiological Sciences, National Institutes of Natural Sciences (NIPS), Okazaki, 444-8787, Japan
| | - Hideki Sakai
- Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
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12
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Nakamura T, Dinh TH, Asai M, Matsumoto J, Nishimaru H, Setogawa T, Honda S, Yamada H, Mihara T, Nishijo H. Suppressive effects of ketamine on auditory steady-state responses in intact, awake macaques: A non-human primate model of schizophrenia. Brain Res Bull 2023; 193:84-94. [PMID: 36539101 DOI: 10.1016/j.brainresbull.2022.12.006] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Auditory steady-state responses (ASSRs) are recurrent neural activities entrained to regular cyclic auditory stimulation. ASSRs are altered in individuals with schizophrenia, and may be related to hypofunction of the N-methyl-D-aspartate (NMDA) glutamate receptor. Noncompetitive NMDA receptor antagonists, including ketamine, have been used in ASSR studies of rodent models of schizophrenia. Although animal studies using non-human primates are required to complement rodent studies, the effects of ketamine on ASSRs are unknown in intact awake non-human primates. In this study, after administration of vehicle or ketamine, click trains at 20-83.3 Hz were presented to elicit ASSRs during recording of electroencephalograms in intact, awake macaque monkeys. The results indicated that ASSRs quantified by event-related spectral perturbation and inter-trial coherence were maximal at 83.3 Hz after vehicle administration, and that ketamine reduced ASSRs at 58.8 and 83.3 Hz, but not at 20 and 40 Hz. The present results demonstrated a reduction of ASSRs by the NMDA receptor antagonist at optimal frequencies with maximal responses in intact, awake macaques, comparable to ASSR reduction in patients with schizophrenia. These findings suggest that ASSR can be used as a neurophysiological biomarker of the disturbance of gamma-oscillatory neural circuits in this ketamine model of schizophrenia using intact, awake macaques. Thus, this model with ASSRs would be useful in the investigation of human brain pathophysiology as well as in preclinical translational research.
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Affiliation(s)
- Tomoya Nakamura
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Department of Anatomy, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Trong Ha Dinh
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Department of Physiology, Vietnam Military Medical University, Hanoi 100000, Viet Nam
| | - Makoto Asai
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Sokichi Honda
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Hiroshi Yamada
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Takuma Mihara
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan.
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13
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Sato Y, Nishimaru H, Matsumoto J, Setogawa T, Nishijo H. Electroencephalographic Effective Connectivity Analysis of the Neural Networks during Gesture and Speech Production Planning in Young Adults. Brain Sci 2023; 13:brainsci13010100. [PMID: 36672081 PMCID: PMC9856316 DOI: 10.3390/brainsci13010100] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
Gestures and speech, as linked communicative expressions, form an integrated system. Previous functional magnetic resonance imaging studies have suggested that neural networks for gesture and spoken word production share similar brain regions consisting of fronto-temporo-parietal brain regions. However, information flow within the neural network may dynamically change during the planning of two communicative expressions and also differ between them. To investigate dynamic information flow in the neural network during the planning of gesture and spoken word generation in this study, participants were presented with spatial images and were required to plan the generation of gestures or spoken words to represent the same spatial situations. The evoked potentials in response to spatial images were recorded to analyze the effective connectivity within the neural network. An independent component analysis of the evoked potentials indicated 12 clusters of independent components, the dipoles of which were located in the bilateral fronto-temporo-parietal brain regions and on the medial wall of the frontal and parietal lobes. Comparison of effective connectivity indicated that information flow from the right middle cingulate gyrus (MCG) to the left supplementary motor area (SMA) and from the left SMA to the left precentral area increased during gesture planning compared with that of word planning. Furthermore, information flow from the right MCG to the left superior frontal gyrus also increased during gesture planning compared with that of word planning. These results suggest that information flow to the brain regions for hand praxis is more strongly activated during gesture planning than during word planning.
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Affiliation(s)
- Yohei Sato
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hiroshi Nishimaru
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Jumpei Matsumoto
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Tsuyoshi Setogawa
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
- Correspondence:
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14
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Nishimaru H, Matsumoto J, Setogawa T, Nishijo H. Neuronal structures controlling locomotor behavior during active and inactive motor states. Neurosci Res 2022; 189:83-93. [PMID: 36549389 DOI: 10.1016/j.neures.2022.12.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Animal behaviors can be divided into two states according to their motor activity: the active motor state, which involves significant body movements, and the inactive motor state, which refers to when the animal is stationary. The timing and duration of these states are determined by the activity of the neuronal circuits involved in motor control. Among these motor circuits, those that generate locomotion are some of the most studied neuronal networks and are widely distributed from the spinal cord to the cerebral cortex. In this review, we discuss recent discoveries, mainly in rodents using state-of-the-art experimental approaches, of the neuronal mechanisms underlying the initiation and termination of locomotion in the brainstem, basal ganglia, and prefrontal cortex. These findings is discussed with reference to studies on the neuronal mechanism of motor control during sleep and the modulation of cortical states in these structures. Accumulating evidence has unraveled the complex yet highly structured network that controls the transition between motor states.
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Affiliation(s)
- Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Graduate school of Innovative Life Science, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan.
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Graduate school of Innovative Life Science, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Graduate school of Innovative Life Science, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan; Graduate school of Innovative Life Science, University of Toyama, Toyama 930-0194, Japan; Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
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15
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Iwama Y, Takamoto K, Hibi D, Nishimaru H, Matsumoto J, Setogawa T, Nishijo H. Young female participants show blunted placebo effects associated with blunted responses to a cue predicting a safe stimulus in the right dorsolateral prefrontal cortex. Front Neurosci 2022; 16:1001177. [PMID: 36263366 PMCID: PMC9574021 DOI: 10.3389/fnins.2022.1001177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Discrimination of cues predicting non-nociceptive/nociceptive stimuli is essential for predicting whether a non-painful or painful stimulus will be administered and for eliciting placebo/nocebo (pain reduction/pain enhancement) effects. Dysfunction of the neural system involved in placebo effects has been implicated in the pathology of chronic pain, while female sex is one of the important risk factors for development of chronic pain in young adults. The dorsolateral prefrontal cortex (dl-PFC) is suggested to be involved in placebo effects and is sensitive to sex and age. In this study, to examine the neural mechanisms by which sex and age alter placebo and nocebo effects, we analyzed cerebral hemodynamic activities in the dl-PFC in different sex and age groups during a differential conditioning task. During the training session, two different sounds were followed by low- and high-intensity electrical shocks. In the following recording session, electrical shocks, the intensity of which was mismatched to the sounds, were occasionally administered to elicit placebo and nocebo effects. In young female participants, both placebo effects and hemodynamic responses to the conditioned sounds in the right dl-PFC were significantly lower than those in elderly female participants, while there were no age differences in male participants. The hemodynamic responses to the sound paired with the safe stimulus in the right dl-PFC were significantly correlated with placebo effects, except in the young female group. These results suggest that blunted placebo effects in the young female participants are ascribed to blunted responses to the sound associated with the safe stimulus in the right dl-PFC, and that sex- and age-related factors may alter the responsiveness of the right dl-PFC to associative cues predicting a safe stimulus.
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Affiliation(s)
- Yudai Iwama
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Kouichi Takamoto
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, Shimonoseki, Japan
| | - Daisuke Hibi
- Department of Anesthesiology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
- *Correspondence: Hisao Nishijo,
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16
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Nakamura T, Dinh TH, Asai M, Nishimaru H, Matsumoto J, Setogawa T, Ichijo H, Honda S, Yamada H, Mihara T, Nishijo H. Characteristics of auditory steady-state responses to different click frequencies in awake intact macaques. BMC Neurosci 2022; 23:57. [PMID: 36180823 PMCID: PMC9524006 DOI: 10.1186/s12868-022-00741-9] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022] Open
Abstract
Background Auditory steady-state responses (ASSRs) are periodic evoked responses to constant periodic auditory stimuli, such as click trains, and are suggested to be associated with higher cognitive functions in humans. Since ASSRs are disturbed in human psychiatric disorders, recording ASSRs from awake intact macaques would be beneficial to translational research as well as an understanding of human brain function and its pathology. However, ASSR has not been reported in awake macaques. Results Electroencephalograms (EEGs) were recorded from awake intact macaques, while click trains at 20–83.3 Hz were binaurally presented. EEGs were quantified based on event-related spectral perturbation (ERSP) and inter-trial coherence (ITC), and ASSRs were significantly demonstrated in terms of ERSP and ITC in awake intact macaques. A comparison of ASSRs among different click train frequencies indicated that ASSRs were maximal at 83.3 Hz. Furthermore, analyses of laterality indices of ASSRs showed that no laterality dominance of ASSRs was observed. Conclusions The present results demonstrated ASSRs, comparable to those in humans, in awake intact macaques. However, there were some differences in ASSRs between macaques and humans: macaques showed maximal ASSR responses to click frequencies higher than 40 Hz that has been reported to elicit maximal responses in humans, and showed no dominant laterality of ASSRs under the electrode montage in this study compared with humans with right hemisphere dominance. The future ASSR studies using awake intact macaques should be aware of these differences, and possible factors, to which these differences were ascribed, are discussed. Supplementary Information The online version contains supplementary material available at 10.1186/s12868-022-00741-9.
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Affiliation(s)
- Tomoya Nakamura
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani2630, Toyama, 930-0194, Japan.,Department of Anatomy, Faculty of Medicine, University of Toyama, Toyama, 930-0194, Japan
| | - Trong Ha Dinh
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani2630, Toyama, 930-0194, Japan.,Department of Physiology, Vietnam Military Medical University, Hanoi, 100000, Vietnam
| | - Makoto Asai
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki, 305-8585, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani2630, Toyama, 930-0194, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, 930-0194, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani2630, Toyama, 930-0194, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, 930-0194, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani2630, Toyama, 930-0194, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, 930-0194, Japan
| | - Hiroyuki Ichijo
- Department of Anatomy, Faculty of Medicine, University of Toyama, Toyama, 930-0194, Japan
| | - Sokichi Honda
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki, 305-8585, Japan
| | - Hiroshi Yamada
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki, 305-8585, Japan
| | - Takuma Mihara
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki, 305-8585, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani2630, Toyama, 930-0194, Japan. .,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, 930-0194, Japan.
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17
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Trang TB, Tai PT, Nishijo M, Anh TN, Thao PN, Hoa VT, Nghi TN, Van Luong H, Nishijo H. Adverse effects of dioxins on cognitive ability and motor performance of 5-year-old children residing in a hotspot of dioxin contamination originating from Agent Orange in Vietnam: A prospective cohort study. Sci Total Environ 2022; 833:155138. [PMID: 35405238 DOI: 10.1016/j.scitotenv.2022.155138] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Bien Hoa airbase is the most dioxin-polluted hotspot in Vietnam. In 2012, a birth cohort living around Bien Hoa airbase was recruited for assessment of physical and neurological development. In the present study, neurodevelopment scores at 5 years of age were assessed by the Kaufman Assessment Battery for Children, Second Edition and the Movement Assessment Battery for Children, Second Edition for 185 children in Bien Hoa and 104 children in Ha Dong (unexposed control group) to clarify the effects of dioxin. 2,3,7,8-tetrachlorodibenzo-p-dioxin concentrations in breast milk of women in Bien Hoa were approximately three times higher than those of women in Ha Dong (2.33 vs. 0.69 pg/g fat, p < 0.001). In general, neurodevelopment scores were lower in Bien Hoa children than in Ha Dong children. In boys, scores differed for number recall (12.6 vs. 14.0, p = 0.036), triangles (10.7 vs. 12.4, p = 0.005), manual dexterity (8.3 vs. 9.7, p = 0.037), balance (7.4 vs. 10.3, p < 0.001), and total movement scores (8.0 vs. 10.1, p = 0.003). After adjusting for covariates, linear regression analysis indicated that the scores of the triangles, balance, and total movement tests were inversely associated with levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin and of toxic equivalency of polychlorinated dibenzodioxins and polychlorinated dibenzofurans. In girls, scores differed for the triangles test (11.0 vs. 12.6, p = 0.005), hand movement test (9.6 vs. 11.3, p = 0.003), and balance test (9.1 vs. 10.7, p = 0.050); toxic equivalency of polychlorinated dibenzofurans was inversely associated with hand movement and balance scores. Overall, perinatal dioxin exposure appears to have a long-term impact on neurodevelopment.
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Affiliation(s)
- Thieu Ban Trang
- Department of Anatomy, Vietnam Military Medical University, 160-Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Pham The Tai
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222-Phung Hung, Ha Dong, Ha Noi, Viet Nam.
| | - Muneko Nishijo
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa 920-0293, Japan.
| | - Tran Ngoc Anh
- Department of Anatomy, Vietnam Military Medical University, 160-Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Pham Ngoc Thao
- Military Hospital 103, Vietnam Military Medical University, 261-Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Vu Thi Hoa
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa 920-0293, Japan
| | - Tran Ngoc Nghi
- Ministry of Health, 138 A-Giang Vo, Kim Ma, Ba Dinh, Ha Noi, Viet Nam
| | - Hoang Van Luong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222-Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Japan
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Matsumoto J, Kanno K, Kato M, Nishimaru H, Setogawa T, Chinzorig C, Shibata T, Nishijo H. Acoustic camera system for measuring ultrasound communication in mice. iScience 2022; 25:104812. [PMID: 35982786 PMCID: PMC9379670 DOI: 10.1016/j.isci.2022.104812] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/15/2022] [Accepted: 07/18/2022] [Indexed: 11/01/2022] Open
Abstract
To investigate biological mechanisms underlying social behaviors and their deficits, social communication via ultrasonic vocalizations (USVs) in mice has received considerable attention as a powerful experimental model. The advances in sound localization technology have facilitated the analysis of vocal interactions between multiple mice. However, existing sound localization systems are built around distributed-microphone arrays, which require a special recording arena and long processing time. Here, we report a novel acoustic camera system, USVCAM, which enables simpler and faster USV localization and assignment. The system comprises recently developed USV segmentation algorithms with a modification for overlapping vocalizations that results in high accuracy. Using USVCAM, we analyzed USV communications in a conventional home cage, and demonstrated novel vocal interactions in female ICR mice under a resident-intruder paradigm. The extended applicability and usability of USVCAM may facilitate future studies investigating typical and atypical vocal communication and social behaviors, as well as the underlying mechanisms. A new sound localization system for ultrasound vocalizations in mice was proposed Simpler recording setup and faster processing were achieved by utilizing phase lag Vocal interactions in a resident-intruder paradigm were analyzed with the system The system may facilitate future studies investigating social behaviors
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Le DT, Ogawa H, Tsuyuhara M, Watanabe K, Watanabe T, Ochi R, Nishijo H, Mihara M, Fujita N, Urakawa S. Coupled versus decoupled visuomotor feedback: Differential frontoparietal activity during curved reach planning on simultaneous functional near-infrared spectroscopy and electroencephalography. Brain Behav 2022; 12:e2681. [PMID: 35701382 PMCID: PMC9304848 DOI: 10.1002/brb3.2681] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/20/2022] [Accepted: 06/01/2022] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Interacting with the environment requires the planning and execution of reach-to-target movements along given reach trajectory paths. Human neural mechanisms for the motor planning of linear, or point-to-point, reaching movements are relatively well studied. However, the corresponding representations for curved and more complex reaching movements require further investigation. Additionally, the visual and proprioceptive feedback of hand positioning can be spatially and sequentially coupled in alignment (e.g., directly reaching for an object), termed coupled visuomotor feedback, or spatially decoupled (e.g., dragging the computer mouse forward to move the cursor upward), termed decoupled visuomotor feedback. During reach planning, visuomotor processing routes may differ across feedback types. METHODS We investigated the involvement of the frontoparietal regions, including the superior parietal lobule (SPL), dorsal premotor cortex (PMd), and dorsolateral prefrontal cortex (dlPFC), in curved reach planning under different feedback conditions. Participants engaged in two delayed-response reaching tasks with identical starting and target position sets but different reach trajectory paths (linear or curved) under two feedback conditions (coupled or decoupled). Neural responses in frontoparietal regions were analyzed using a combination of functional near-infrared spectroscopy and electroencephalography. RESULTS The results revealed that, regarding the cue period, curved reach planning had a higher hemodynamic response in the left SPL and bilateral PMd and a smaller high-beta power in the left parietal regions than linear reach planning. Regarding the delay period, higher hemodynamic responses during curved reach planning were observed in the right dlPFC for decoupled feedback than those for coupled feedback. CONCLUSION These findings suggest the crucial involvement of both SPL and PMd activities in trajectory-path processing for curved reach planning. Moreover, the dlPFC may be especially involved in the planning of curved reaching movements under decoupled feedback conditions. Thus, this study provides insight into the neural mechanisms underlying reaching function via different feedback conditions.
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Affiliation(s)
- Duc Trung Le
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Ogawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masato Tsuyuhara
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuki Watanabe
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsunori Watanabe
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ryosuke Ochi
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Masahito Mihara
- Department of Neurology, Kawasaki Medical School, Okayama, Japan
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Habe T, Numano T, Nishijo H, Iwama Y, Takamoto K, Ito D, Mizuhara K, Osada K, Kanai M. Time-course of physical properties of the psoas major muscle after exercise as assessed by MR elastography. Magn Reson Imaging 2022; 92:133-139. [PMID: 35772585 DOI: 10.1016/j.mri.2022.06.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/16/2022] [Accepted: 06/23/2022] [Indexed: 11/15/2022]
Abstract
This study aimed to analyze the time-course of the physical properties of the psoas major muscle (PM) before and after exercise using magnetic resonance elastography (MRE). Muscle stiffness is one of the important properties associated with muscle function. However, there was no research on the stiffness of the PM after exercise. In this study, we investigated time-course changes of the shear modulus of the PM after exercise. Furthermore, T2 values and apparent diffusion coefficient (ADC), as the additional information associated with muscular physical properties, were also measured simultaneously. Healthy young male volunteers were recruited in this study (n = 9) and they were required to perform a hand-to-knee isometric and unilateral exercise (left side). At each time-point before and after exercise, a set of 3 types of MR scans to measure multiple physical properties of the PM [shear modulus (MRE), T2 values, and ADC] were repeatedly taken. On day 1, a single set MR scan was taken before exercise (pre-exercise MR scan), and 6 sets MR scans were taken (5.5 to 38.0 min after exercise). After about 10-min rest (46.0 to 56.0 min after exercise), 4 sets MR scans were taken (57.5 to 77.0 min after exercise). About 10-min rest was taken again (85.0-95.0 min after exercise), 4 sets MR scans were taken (96.5 to 116.0 min after exercise). On days 2 and 7, a single set MR scan (MRE, T2 value, and ADC) was taken on each experimental day. The data were analyzed as relative changes (%) of the given parameters to the pre-exercise values. The results indicated significant decreases in PM shear modulus up to about 30 min after exercise. Then, it gradually increased and showed significant increases at about 100 min after exercise compared to that before exercise. T2 values and ADC showed significant increases up to about 65 min after exercise compared to those before exercise, and then returned to the pre-exercise values. On days 2 and 7, all values showed no significant changes compared to the pre-exercise values. This study is the first to report the time-course of the physical properties of the PM after exercise.
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Affiliation(s)
- Tetsushi Habe
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan; Office of Radiation Technology, Keio University Hospital, Tokyo, Japan
| | - Tomokazu Numano
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan; Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan.
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yudai Iwama
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Kouichi Takamoto
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, Yamaguchi, Japan
| | - Daiki Ito
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan; Office of Radiation Technology, Keio University Hospital, Tokyo, Japan
| | - Kazuyuki Mizuhara
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan; Department of Mechanical Engineering, Tokyo Denki University, Tokyo, Japan
| | - Kaito Osada
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Midori Kanai
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
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Pham-The T, Nishijo M, Pham TN, Vu HT, Tran NN, Tran AH, Hoang LV, Do Q, Nishino Y, Nishijo H. Perinatal Dioxin Exposure and Attention Deficit Hyperactivity Disorder (ADHD) Symptoms in Children Living in a Dioxin Contamination Hotspot in Vietnam. Toxics 2022; 10:toxics10050212. [PMID: 35622626 PMCID: PMC9143824 DOI: 10.3390/toxics10050212] [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] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/26/2022] [Accepted: 04/01/2022] [Indexed: 01/27/2023]
Abstract
We examined children in Da Nang, a dioxin contamination hotspot in Vietnam, twice at 5 and 8 years of age, and investigated sex- and age-dependent differences in the effects of dioxin exposure on attention deficit hyperactivity disorder (ADHD) symptoms. We also studied autistic traits in children with ADHD symptoms. A total of 163 children participated in follow-up surveys at 5 and 8 years of age and were included in the present analysis. ADHD symptoms were assessed using an ADHD rating scale with inattention and hyperactivity-and-impulsivity (hyperactivity) subscales. Autistic behaviors were evaluated using the Autism Spectrum Rating Scale (ASRS). Perinatal dioxin exposure was indicated by dioxin levels in maternal breast milk. In boys, hyperactivity scores were significantly higher in the high 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) group only at 5 years of age. In girls, hyperactivity scores at 8 years of age were significantly higher in the high TCDD group, which was significantly associated with those at 5 years of age. In girls, ASRS unusual behavior scores were significantly higher with higher TCDD exposure and hyperactivity scores at 8 years of age. These results suggest that high perinatal TCDD exposure may increase ADHD likelihood and autistic traits, particularly in girls of 7–8 years of age.
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Affiliation(s)
- Tai Pham-The
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 12108, Vietnam; (T.N.P.); (A.H.T.); (L.V.H.); (Q.D.)
- Correspondence: ; Tel.: +84-339078560
| | - Muneko Nishijo
- Department of Public Health, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan; (M.N.); (H.T.V.); (Y.N.)
| | - Thao Ngoc Pham
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 12108, Vietnam; (T.N.P.); (A.H.T.); (L.V.H.); (Q.D.)
| | - Hoa Thi Vu
- Department of Public Health, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan; (M.N.); (H.T.V.); (Y.N.)
| | - Nghi Ngoc Tran
- Ministry of Health, Vietnamese Government, Hanoi 10060, Vietnam;
| | - Anh Hai Tran
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 12108, Vietnam; (T.N.P.); (A.H.T.); (L.V.H.); (Q.D.)
| | - Luong Van Hoang
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 12108, Vietnam; (T.N.P.); (A.H.T.); (L.V.H.); (Q.D.)
| | - Quyet Do
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 12108, Vietnam; (T.N.P.); (A.H.T.); (L.V.H.); (Q.D.)
| | - Yoshikazu Nishino
- Department of Public Health, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan; (M.N.); (H.T.V.); (Y.N.)
| | - Hisao Nishijo
- Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
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22
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Ochi R, Fujita N, Takaishi K, Oshima T, Nguyen ST, Nishijo H, Urakawa S. Voluntary exercise reverses social behavior deficits and the increases in the densities of cholecystokinin-positive neurons in specific corticolimbic regions of diabetic OLETF rats. Behav Brain Res 2022; 428:113886. [DOI: 10.1016/j.bbr.2022.113886] [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] [Received: 10/01/2021] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 11/02/2022]
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Dinh HT, Meng Y, Matsumoto J, Setogawa T, Nishimaru H, Nishijo H. Fast Detection of Snakes and Emotional Faces in the Macaque Amygdala. Front Behav Neurosci 2022; 16:839123. [PMID: 35386724 PMCID: PMC8979552 DOI: 10.3389/fnbeh.2022.839123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/19/2021] [Accepted: 02/11/2022] [Indexed: 11/30/2022] Open
Abstract
Primate vision is reported to detect snakes and emotional faces faster than many other tested stimuli. Because the amygdala has been implicated in avoidance and emotional behaviors to biologically relevant stimuli and has neural connections with subcortical nuclei involved with vision, amygdalar neurons would be sensitive to snakes and emotional faces. In this study, neuronal activity in the amygdala was recorded from Japanese macaques (Macaca fuscata) during discrimination of eight categories of visual stimuli including snakes, monkey faces, human faces, carnivores, raptors, non-predators, monkey hands, and simple figures. Of 527 amygdalar neurons, 95 responded to one or more stimuli. Response characteristics of the amygdalar neurons indicated that they were more sensitive to the snakes and emotional faces than other stimuli. Response magnitudes and latencies of amygdalar neurons to snakes and monkey faces were stronger and faster than those to the other categories of stimuli, respectively. Furthermore, response magnitudes to the low pass-filtered snake images were larger than those to scrambled snake images. Finally, analyses of population activity of amygdalar neurons suggest that snakes and emotional faces were represented separately from the other stimuli during the 50–100 ms period from stimulus onset, and neutral faces during the 100–150 ms period. These response characteristics indicate that the amygdala processes fast and coarse visual information from emotional faces and snakes (but not other predators of primates) among the eight categories of the visual stimuli, and suggest that, like anthropoid primate visual systems, the amygdala has been shaped over evolutionary time to detect appearance of potentially threatening stimuli including both emotional faces and snakes, the first of the modern predators of primates.
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Affiliation(s)
- Ha Trong Dinh
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Department of Physiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Yang Meng
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
- *Correspondence: Hiroshi Nishimaru,
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
- Hisao Nishijo,
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Miyahara K, Nishimaru H, Matsumoto J, Setogawa T, Taguchi T, Ono T, Nishijo H. Involvement of Parvalbumin-Positive Neurons in the Development of Hyperalgesia in a Mouse Model of Fibromyalgia. Front Pain Res (Lausanne) 2022; 2:627860. [PMID: 35295447 PMCID: PMC8915639 DOI: 10.3389/fpain.2021.627860] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/02/2021] [Indexed: 11/13/2022] Open
Abstract
Fibromyalgia (FM) presents as chronic systemic pain, which might be ascribed to central sensitization, in which pain information processing is amplified in the central nervous system. Since patients with FM display elevated gamma oscillations in the pain matrix and parvalbumin (PV)-positive neurons play a critical role in induction of gamma oscillations, we hypothesized that changes in PV-positive neurons are involved in hyperalgesia in fibromyalgia. In the present study, to investigate a role of PV-positive neurons in neuropathic pain, mice received reserpine administration for 3 consecutive days as an animal model of FM (RES group), while control mice received vehicle injections in the same way (VEH group). The mice were subjected to hot-plate and forced swim tests, and immuno-stained PV-positive neurons were counted in the pain matrix. We investigated relationships between PV-positive neuron density in the pain matrix and pain avoidance behaviors. The results indicated that the mice in the RES group showed transient bodyweight loss and longer immobility time in the forced swim test than the mice in the VEH group. In the hot-plate test, the RES group showed shorter response latencies and a larger number of jumps in response to nociceptive thermal stimulus than the VEH group. Histological examination indicated an increase in the density of PV-positive neurons in the primary somatosensory cortex (S1) in the RES group. Furthermore, response latencies to the hot-plate were significantly and negatively correlated with the density of PV-positive neurons in the S1. These results suggest a critical role for PV-positive neurons in the S1 to develop hyperalgesia in FM.
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Affiliation(s)
- Kenichiro Miyahara
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Toru Taguchi
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, Niigata, Japan.,Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Taketoshi Ono
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
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Le DT, Watanabe K, Ogawa H, Matsushita K, Imada N, Taki S, Iwamoto Y, Imura T, Araki H, Araki O, Ono T, Nishijo H, Fujita N, Urakawa S. Involvement of the Rostromedial Prefrontal Cortex in Human-Robot Interaction: fNIRS Evidence From a Robot-Assisted Motor Task. Front Neurorobot 2022; 16:795079. [PMID: 35370598 PMCID: PMC8970051 DOI: 10.3389/fnbot.2022.795079] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 02/17/2022] [Indexed: 11/28/2022] Open
Abstract
Assistive exoskeleton robots are being widely applied in neurorehabilitation to improve upper-limb motor and somatosensory functions. During robot-assisted exercises, the central nervous system appears to highly attend to external information-processing (IP) to efficiently interact with robotic assistance. However, the neural mechanisms underlying this process remain unclear. The rostromedial prefrontal cortex (rmPFC) may be the core of the executive resource allocation that generates biases in the allocation of processing resources toward an external IP according to current behavioral demands. Here, we used functional near-infrared spectroscopy to investigate the cortical activation associated with executive resource allocation during a robot-assisted motor task. During data acquisition, participants performed a right-arm motor task using elbow flexion-extension movements in three different loading conditions: robotic assistive loading (ROB), resistive loading (RES), and non-loading (NON). Participants were asked to strive for kinematic consistency in their movements. A one-way repeated measures analysis of variance and general linear model-based methods were employed to examine task-related activity. We demonstrated that hemodynamic responses in the ventral and dorsal rmPFC were higher during ROB than during NON. Moreover, greater hemodynamic responses in the ventral rmPFC were observed during ROB than during RES. Increased activation in ventral and dorsal rmPFC subregions may be involved in the executive resource allocation that prioritizes external IP during human-robot interactions. In conclusion, these findings provide novel insights regarding the involvement of executive control during a robot-assisted motor task.
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Affiliation(s)
- Duc Trung Le
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Neurology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Kazuki Watanabe
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Ogawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kojiro Matsushita
- Department of Mechanical Engineering, Facility of Engineering, Gifu University, Gifu, Japan
| | - Naoki Imada
- Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Shingo Taki
- Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Yuji Iwamoto
- Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Takeshi Imura
- Department of Rehabilitation, Faculty of Health Sciences, Hiroshima Cosmopolitan University, Hiroshima, Japan
| | - Hayato Araki
- Department of Neurosurgery, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Osamu Araki
- Department of Neurosurgery, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Taketoshi Ono
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- *Correspondence: Susumu Urakawa
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Yu Y, Setogawa T, Matsumoto J, Nishimaru H, Nishijo H. Neural basis of topographical disorientation in the primate posterior cingulate gyrus based on a labeled graph. AIMS Neurosci 2022; 9:373-394. [PMID: 36329903 PMCID: PMC9581735 DOI: 10.3934/neuroscience.2022021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
Patients with lesions in the posterior cingulate gyrus (PCG), including the retrosplenial cortex (RSC) and posterior cingulate cortex (PCC), cannot navigate in familiar environments, nor draw routes on a 2D map of the familiar environments. This suggests that the topographical knowledge of the environments (i.e., cognitive map) to find the right route to a goal is represented in the PCG, and the patients lack such knowledge. However, theoretical backgrounds in neuronal levels for these symptoms in primates are unclear. Recent behavioral studies suggest that human spatial knowledge is constructed based on a labeled graph that consists of topological connections (edges) between places (nodes), where local metric information, such as distances between nodes (edge weights) and angles between edges (node labels), are incorporated. We hypothesize that the population neural activity in the PCG may represent such knowledge based on a labeled graph to encode routes in both 3D environments and 2D maps. Since no previous data are available to test the hypothesis, we recorded PCG neuronal activity from a monkey during performance of virtual navigation and map drawing-like tasks. The results indicated that most PCG neurons responded differentially to spatial parameters of the environments, including the place, head direction, and reward delivery at specific reward areas. The labeled graph-based analyses of the data suggest that the population activity of the PCG neurons represents the distance traveled, locations, movement direction, and navigation routes in the 3D and 2D virtual environments. These results support the hypothesis and provide a neuronal basis for the labeled graph-based representation of a familiar environment, consistent with PCG functions inferred from the human clinicopathological studies.
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Affiliation(s)
- Yang Yu
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
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Maior RS, Nishijo H, Caixeta FV. Editorial: Non-human Primate Models of Psychiatric Disorders. Front Behav Neurosci 2021; 15:774064. [PMID: 34867231 PMCID: PMC8633302 DOI: 10.3389/fnbeh.2021.774064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/21/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Rafael S Maior
- Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | - Hisao Nishijo
- System Emotional Science, University of Toyama, Toyama, Japan
| | - Fabio V Caixeta
- Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
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28
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Nishijo H, Ono T. [Neural Mechanisms of Innate Recognition of Facial Stimuli in Primates]. Brain Nerve 2021; 73:1363-1369. [PMID: 34848574 DOI: 10.11477/mf.1416201948] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Primates can recognize or respond to specific stimuli that are important for survival, such as faces, predators, prey animals, and foods, even if they have not experienced those stimuli previously (innate recognition). Throughout vertebrates, including primates, the extrageniculate visual system (subcortical visual pathway) comprising the retina, superior colliculus, pulvinar, and amygdala is thought to be genetically hard-wired and involved in innate recognition of these stimuli. To investigate neural mechanisms of innate recognition in primates, we analyzed single neuronal responses to facial images in the monkey pulvinar and superior colliculus. The results indicated that the pulvinar and superior collicular neurons responded preferentially to facial images in short latency and showed gamma oscillations during stimulus presentation. Furthermore, the population activity of these neurons discriminated head direction, sex, and identity of facial images. Based on these findings, we discussed neural mechanisms underlying the innate and automatic (unconscious) detection of facial stimuli in the extrageniculate visual system.
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29
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Uta D, Tsuboshima K, Nishijo H, Mizumura K, Taguchi T. Neuronal Sensitization and Synaptic Facilitation in the Superficial Dorsal Horn of a Rat Reserpine-induced Pain Model. Neuroscience 2021; 479:125-139. [PMID: 34673142 DOI: 10.1016/j.neuroscience.2021.10.010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 12/23/2022]
Abstract
Chronic widespread pain is one of the important issues to be solved in medical practice. Impaired spinal descending pain inhibitory system due to decreased monoamine neurotransmitters is assumed to cause nociceptive hypersensitivities in chronic painful conditions like that described in patients with fibromyalgia (FM). However, response behaviors and synaptic transmission of the spinal dorsal horn neurons in response to reserpine remain to be clarified. Here we examined the activities of superficial dorsal horn (SDH) neurons, as well as excitatory and inhibitory postsynaptic inputs to SDH neurons, using a putative rat model of FM that was established by injecting reserpine. Extracellular recordings in vivo revealed that SDH neurons were sensitized to mechanical stimulation applied to the neurons' receptive fields, and the mechanically sensitized neurons were spontaneously more active. The sensitizing effect was evident 1 day and 3 days after the reserpine treatment, but subsided 5 days after the treatment or later. Using patch-clamp recordings in vivo, spontaneous excitatory postsynaptic currents (sEPSCs) to SDH neurons were found to increase in the pain model, while spontaneous inhibitory postsynaptic currents (sIPSCs) to SDH neurons decreased. These results demonstrate that the SDH neurons were strongly sensitized in response to the reserpine treatment, and that increased excitatory and decreased inhibitory postsynaptic inputs could be responsible for the spinal nociceptive hypersensitivity in the putative FM model.
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Affiliation(s)
- Daisuke Uta
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Katsuyuki Tsuboshima
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Kazue Mizumura
- Department of Physiology, Nihon University School of Dentistry, Tokyo 101-8310, Japan
| | - Toru Taguchi
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, Niigata 950-3198, Japan; Institute for Human Movement and Medical Sciences (IHMMS), Niigata University of Health and Welfare, Niigata 950-3198, Japan.
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30
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Ishikuro K, Hattori N, Imanishi R, Furuya K, Nakata T, Dougu N, Yamamoto M, Konishi H, Nukui T, Hayashi T, Anada R, Matsuda N, Hirosawa H, Tanaka R, Shibata T, Mori K, Noguchi K, Kuroda S, Nakatsuji Y, Nishijo H. A Parkinson's disease patient displaying increased neuromelanin-sensitive areas in the substantia nigra after rehabilitation with tDCS: a case report. Neurocase 2021; 27:407-414. [PMID: 34503372 DOI: 10.1080/13554794.2021.1975768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 12/23/2022]
Abstract
Previous studies have reported that transcranial direct current stimulation (tDCS) of the frontal polar area (FPA) ameliorated motor disability in patients with Parkinson's disease (PD). Here we report changes in neuromelanin (NM) imaging of dopaminergic neurons before and after rehabilitation combined with anodal tDCS over the FPA for 2 weeks in a PD patient. After the intervention, the patient showed clinically meaningful improvements while the NM-sensitive area in the SN increased by 18.8%. This case study is the first report of NM imaging of the SN in a PD patient who received tDCS.Abbreviations FPA: front polar area; PD: Parkinson's disease; NM: neuromelanin; DCI: DOPA decarboxylase inhibitor; STEF: simple test for evaluating hand function; TUG: timed up and go test; TMT: trail-making test; SN: substantia nigra; NM-MRI: neuromelanin magnetic resonance imaging; MCID: the minimal clinically important difference; SNpc: substantia nigra pars compacta; VTA: ventral tegmental area; LC: locus coeruleus; PFC: prefrontal cortex; M1: primary motor cortex; MDS: Movement Disorder Society; MIBG: 123I-metaiodobenzylguanidine; SBR: specific binding ratio; SPECT: single-photon emission computed tomography; DAT: dopamine transporter; NIBS: noninvasive brain stimulation; tDCS: transcranial direct current stimulation; MAOB: monoamine oxidase B; DCI: decarboxylase inhibitor; repetitive transcranial magnetic stimulation: rTMS; diffusion tensor imaging: DTI; arterial spin labeling: ASL.
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Affiliation(s)
- Koji Ishikuro
- Department of Rehabilitation, Toyama University Hospital, Toyama, Japan
| | - Noriaki Hattori
- Department of Rehabilitation, Toyama University Hospital, Toyama, Japan
| | - Rieko Imanishi
- Department of Rehabilitation, Toyama University Hospital, Toyama, Japan
| | - Kohta Furuya
- Department of Rehabilitation, Toyama University Hospital, Toyama, Japan
| | - Takeshi Nakata
- Department of Rehabilitation, Toyama University Hospital, Toyama, Japan
| | - Nobuhiro Dougu
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Mamoru Yamamoto
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hirofumi Konishi
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Takamasa Nukui
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Tomohiro Hayashi
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Ryoko Anada
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Noriyuki Matsuda
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hiroaki Hirosawa
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Ryo Tanaka
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Takashi Shibata
- Department of Neurosurgery, Faculty of Medicine, Toyama, Japan
| | - Koichi Mori
- Department of Radiology, Faculty of Medicine, Toyama, Japan
| | - Kyo Noguchi
- Department of Radiology, Faculty of Medicine, Toyama, Japan
| | - Satoshi Kuroda
- Department of Neurosurgery, Faculty of Medicine, Toyama, Japan
| | - Yuji Nakatsuji
- Department of Neurology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
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31
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Mimura K, Nagai Y, Inoue KI, Matsumoto J, Hori Y, Sato C, Kimura K, Okauchi T, Hirabayashi T, Nishijo H, Yahata N, Takada M, Suhara T, Higuchi M, Minamimoto T. Chemogenetic activation of nigrostriatal dopamine neurons in freely moving common marmosets. iScience 2021; 24:103066. [PMID: 34568790 PMCID: PMC8449082 DOI: 10.1016/j.isci.2021.103066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/22/2021] [Revised: 07/19/2021] [Accepted: 08/26/2021] [Indexed: 11/10/2022] Open
Abstract
To interrogate particular neuronal pathways in nonhuman primates under natural and stress-free conditions, we applied designer receptors exclusively activated by designer drugs (DREADDs) technology to common marmosets. We injected adeno-associated virus vectors expressing the excitatory DREADD hM3Dq into the unilateral substantia nigra (SN) in four marmosets. Using multi-tracer positron emission tomography imaging, we detected DREADD expression in vivo, which was confirmed in nigrostriatal dopamine neurons by immunohistochemistry, as well as by assessed activation of the SN following agonist administration. The marmosets rotated in a contralateral direction relative to the activated side 30-90 min after consuming food containing the highly potent DREADD agonist deschloroclozapine (DCZ) but not on the following days without DCZ. These results indicate that non-invasive and reversible DREADD manipulation will extend the utility of marmosets as a primate model for linking neuronal activity and natural behavior in various contexts.
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Affiliation(s)
- Koki Mimura
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Yuji Nagai
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Ken-ichi Inoue
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan
| | - Jumpei Matsumoto
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-8555, Japan
- Research Center for Idling Brain Science, University of Toyama, Toyama 930-8555, Japan
| | - Yukiko Hori
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Chika Sato
- Quantum Life Informatics Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
- Applied MRI Research, Department of Molecular Imaging and Theranostics, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Kei Kimura
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan
| | - Takashi Okauchi
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Toshiyuki Hirabayashi
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-8555, Japan
- Research Center for Idling Brain Science, University of Toyama, Toyama 930-8555, Japan
| | - Noriaki Yahata
- Quantum Life Informatics Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
- Applied MRI Research, Department of Molecular Imaging and Theranostics, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Masahiko Takada
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan
| | - Tetsuya Suhara
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Makoto Higuchi
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
| | - Takafumi Minamimoto
- Department of Functional Brain Imaging, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555 Japan
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32
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Ochi R, Fujita N, Goto N, Takaishi K, Oshima T, Nguyen ST, Nishijo H, Urakawa S. Medial prefrontal area reductions, altered expressions of cholecystokinin, parvalbumin, and activating transcription factor 4 in the corticolimbic system, and altered emotional behavior in a progressive rat model of type 2 diabetes. PLoS One 2021; 16:e0256655. [PMID: 34506507 PMCID: PMC8432800 DOI: 10.1371/journal.pone.0256655] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/11/2021] [Indexed: 12/14/2022] Open
Abstract
Metabolic disorders are associated with a higher risk of psychiatric disorders. We previously reported that 20-week-old Otsuka Long-Evans Tokushima fatty (OLETF) rats, a model of progressive type 2 diabetes, showed increased anxiety-like behavior and regional area reductions and increased cholecystokinin-positive neurons in the corticolimbic system. However, in which stages of diabetes these alterations in OLETF rats occur remains unclear. We aimed to investigate anxiety-like behavior and its possible mechanisms at different stages of type 2 diabetes in OLETF rats. Eight- and 30-week-old OLETF rats were used as diabetic animal models at the prediabetic and progressive stages of type 2 diabetes respectively, and age-matched Long-Evans Tokushima Otsuka rats served as non-diabetic controls. In the open-field test, OLETF rats showed less locomotion in the center zone and longer latency to leave the center zone at 8 and 30 weeks old, respectively. The areas of the medial prefrontal cortex were smaller in the OLETF rats, regardless of age. The densities of cholecystokinin-positive neurons in OLETF rats were higher in the lateral and basolateral amygdala only at 8 weeks old and in the anterior cingulate and infralimbic cortices and hippocampal cornu ammonis area 3 at both ages. The densities of parvalbumin-positive neurons of OLETF rats were lower in the cornu ammonis area 2 at 8 weeks old and in the prelimbic and infralimbic cortices at both ages. No apoptotic cell death was detected in OLETF rats, but the percentage of neurons co-expressing activating transcription factor 4 and cholecystokinin and parvalbumin was higher in OLETF rats at both ages in the anterior cingulate cortex and basolateral amygdala, respectively. These results suggest that altered emotional behavior and related neurological changes in the corticolimbic system are already present in the prediabetic stage of OLETF rats.
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Affiliation(s)
- Ryosuke Ochi
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Natsuki Goto
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Kaho Takaishi
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Takaya Oshima
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Son Tien Nguyen
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
- * E-mail:
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Chinzorig C, Nishimaru H, Matsumoto J, Takamura Y, Berthoz A, Ono T, Nishijo H. Rat Retrosplenial Cortical Involvement in Wayfinding Using Visual and Locomotor Cues. Cereb Cortex 2021; 30:1985-2004. [PMID: 31667498 DOI: 10.1093/cercor/bhz183] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The retrosplenial cortex (RSC) has been implicated in wayfinding using different sensory cues. However, the neural mechanisms of how the RSC constructs spatial representations to code an appropriate route under different sensory cues are unknown. In this study, rat RSC neurons were recorded while rats ran on a treadmill affixed to a motion stage that was displaced along a figure-8-shaped track. The activity of some RSC neurons increased during specific directional displacements, while the activity of other neurons correlated with the running speed on the treadmill regardless of the displacement directions. Elimination of visual cues by turning off the room lights and/or locomotor cues by turning off the treadmill decreased the activity of both groups of neurons. The ensemble activity of the former group of neurons discriminated displacements along the common central path of different routes in the track, even when visual or locomotor cues were eliminated where different spatial representations must be created based on different sensory cues. The present results provide neurophysiological evidence of an RSC involvement in wayfinding under different spatial representations with different sensory cues.
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Affiliation(s)
- Choijiljav Chinzorig
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Yusaku Takamura
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Alain Berthoz
- Center for Interdisciplinary Research in Biology, Collège de France, Paris Cedex 05, France
| | - Taketoshi Ono
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
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Goto N, Fujita N, Nino W, Hisatsune K, Ochi R, Nishijo H, Urakawa S. Hemodynamic response during hyperbaric treatment on skeletal muscle in a type 2 diabetes rat model. Biomed Res 2021; 41:23-32. [PMID: 32092737 DOI: 10.2220/biomedres.41.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Mild hyperbaric treatment prevents type 2 diabetes progression due to increased oxygen concentration and blood flow in skeletal muscle. However, it remains unknown whether this treatment is effective during all stages of type 2 diabetes. This study aimed to investigate the influences of hyperbaric treatment at 1.3 atmospheres absolute (ATA) on hemodynamic response in various stages of type 2 diabetes. Otsuka Long-Evans Tokushima fatty (OLETF) and Long-Evans Tokushima Otsuka (LETO) rats were used as models of type 2 diabetes and healthy controls, respectively. Glucose levels were significantly higher in OLETF rats than in LETO rats at all ages. Glucose intolerance gradually increased with age in OLETF rats. Insulin levels in OLETF rats were significantly higher at 20-week-old, however, were significantly lower at 60-week-old than in LETO rats. Oxy-Hb, total Hb, and StO2 in skeletal muscle were increased during hyperbaric treatment in both rats. The hemodynamic changes were significantly higher in OLETF rats than LETO rats, and those changes were also pronounced at 8-week-old compared with other age in OLETF rats. These results suggest that hyperbaric treatment at 1.3 ATA acts on pathophysiological factors and the efficacy could be found only in the early stage of type 2 diabetes.
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Affiliation(s)
- Natsuki Goto
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedicine and Health Sciences, Hiroshima University
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedicine and Health Sciences, Hiroshima University
| | - Wataru Nino
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedicine and Health Sciences, Hiroshima University
| | - Kazuyoshi Hisatsune
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedicine and Health Sciences, Hiroshima University
| | - Ryosuke Ochi
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedicine and Health Sciences, Hiroshima University
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedicine and Health Sciences, Hiroshima University
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Sachuriga, Nishimaru H, Takamura Y, Matsumoto J, Ferreira Pereira de Araújo M, Ono T, Nishijo H. Neuronal Representation of Locomotion During Motivated Behavior in the Mouse Anterior Cingulate Cortex. Front Syst Neurosci 2021; 15:655110. [PMID: 33994964 PMCID: PMC8116624 DOI: 10.3389/fnsys.2021.655110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/18/2021] [Accepted: 02/26/2021] [Indexed: 11/24/2022] Open
Abstract
The anterior cingulate cortex (ACC) is located within the dorsomedial prefrontal cortex (PFC), and processes and facilitates goal-directed behaviors relating to emotion, reward, and motor control. However, it is unclear how ACC neurons dynamically encode motivated behavior during locomotion. In this study, we examined how information for locomotion and behavioral outcomes is temporally represented by individual and ensembles of ACC neurons in mice during a self-paced locomotor reward-based task. By recording and analyzing the activity of ACC neurons with a microdrive tetrode array while the mouse performed the locomotor task, we found that more than two-fifths of the neurons showed phasic activity relating to locomotion or the reward behavior. Some of these neurons showed significant differences in their firing rate depending on the behavioral outcome. Furthermore, by applying a demixed principal component analysis, the ACC population activity was decomposed into components representing locomotion and the previous/future outcome. These results indicated that ACC neurons dynamically integrate motor and behavioral inputs during goal-directed behaviors.
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Affiliation(s)
- Sachuriga
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Graduate School of Innovative Life Science, University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Graduate School of Innovative Life Science, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Yusaku Takamura
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Graduate School of Innovative Life Science, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | | | - Taketoshi Ono
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Graduate School of Innovative Life Science, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
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Nishijo M, Pham TT, Pham NT, Duong HTT, Tran NN, Kondoh T, Nishino Y, Nishimaru H, Do QB, Nishijo H. Nutritional Intervention with Dried Bonito Broth for the Amelioration of Aggressive Behaviors in Children with Prenatal Exposure to Dioxins in Vietnam: A Pilot Study. Nutrients 2021; 13:nu13051455. [PMID: 33922941 PMCID: PMC8145378 DOI: 10.3390/nu13051455] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 12/04/2022] Open
Abstract
Dioxins have been suggested to induce inflammation in the intestine and brain and to induce neurodevelopmental disorders such as autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD), partly due to deficits in parvalbumin-positive neurons in the brain that are sensitive to inflammatory stress. Previously, we reported ADHD traits with increased aggressiveness in children with prenatal exposure to dioxins in Vietnam, whereas dried bonito broth (DBB) has been reported to suppress inflammation and inhibit aggressive behavior in animal and human studies. In the present study, we investigated the association between dioxin exposure and the prevalence of children with highly aggressive behaviors (Study 1), as well as the effects of DBB on the prevalence of children with highly aggressive behaviors (Study 2). Methods: In Study 1, we investigated the effects of dioxin exposure on the prevalence of children with high aggression scores, which were assessed using the Children’s Scale of Hostility and Aggression: Reactive/Proactive (C-SHARP) in dioxin-contaminated areas. The data were analyzed using a logistic regression model after adjusting for confounding factors. In Study 2, we performed nutritional intervention by administering DBB for 60 days to ameliorate the aggressiveness of children with high scores on the C-SHARP aggression scale. The effects of DBB were assessed by comparing the prevalence of children with high C-SHARP scores between the pre- and post-intervention examinations. Results: In Study 1, only the prevalence of children with high covert aggression was significantly increased with an increase in dioxin exposure. In Study 2, in the full ingestion (>80% of goal ingestion volume) group, the prevalence of children with high covert aggression associated with dioxin exposure was significantly lower in the post-ingestion examination compared with in the pre-ingestion examination. However, in other ingestion (<20% and 20–79%) groups and a reference (no intervention) group, no difference in the prevalence of children with high covert aggression was found between the examinations before and after the same experimental period. Conclusions: The findings suggest that DBB ingestion may ameliorate children’s aggressive behavior, which is associated with perinatal dioxin exposure.
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Affiliation(s)
- Muneko Nishijo
- Department of Public Health, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan; (M.N.); (Y.N.)
| | - Tai The Pham
- Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Hanoi 193824, Vietnam; (T.T.P.); (N.T.P.); (Q.B.D.)
| | - Ngoc Thao Pham
- Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Hanoi 193824, Vietnam; (T.T.P.); (N.T.P.); (Q.B.D.)
| | | | - Ngoc Nghi Tran
- Ministry of Health, Vietnam Government, Hanoi 111000, Vietnam;
| | - Takashi Kondoh
- Department of Food Science and Nutrition, Faculty of Agriculture, Kindai University, Nara 631-8505, Japan;
| | - Yoshikazu Nishino
- Department of Public Health, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan; (M.N.); (Y.N.)
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
| | - Quyet Ba Do
- Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Hanoi 193824, Vietnam; (T.T.P.); (N.T.P.); (Q.B.D.)
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan;
- Correspondence: ; Tel.: +81-764347215
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Dinh HT, Nishimaru H, Le QV, Matsumoto J, Setogawa T, Maior RS, Tomaz C, Ono T, Nishijo H. Preferential Neuronal Responses to Snakes in the Monkey Medial Prefrontal Cortex Support an Evolutionary Origin for Ophidiophobia. Front Behav Neurosci 2021; 15:653250. [PMID: 33841110 PMCID: PMC8024491 DOI: 10.3389/fnbeh.2021.653250] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/04/2021] [Indexed: 11/30/2022] Open
Abstract
Ophidiophobia (snake phobia) is one of the most common specific phobias. It has been proposed that specific phobia may have an evolutionary origin, and that attentional bias to specific items may promote the onset of phobia. Noninvasive imaging studies of patients with specific phobia reported that the medial prefrontal cortex (mPFC), especially the rostral part of the anterior cingulate cortex (rACC), and amygdala are activated during the presentation of phobogenic stimuli. We propose that the mPFC-amygdala circuit may be involved in the pathogenesis of phobia. The mPFC receives inputs from the phylogenically old subcortical visual pathway including the superior colliculus, pulvinar, and amygdala, while mPFC neurons are highly sensitive to snakes that are the first modern predator of primates, and discriminate snakes with striking postures from those with non-striking postures. Furthermore, the mPFC has been implicated in the attentional allocation and promotes amygdala-dependent aversive conditioning. These findings suggest that the rACC focuses attention on snakes, and promotes aversive conditioning to snakes, which may lead to anxiety and ophidiophobia.
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Affiliation(s)
- Ha Trong Dinh
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Department of Physiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Quan Van Le
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Rafael S Maior
- Primate Center and Laboratory of Neurosciences and Behavior, Department of Physiological Sciences, Institute of Biology, University of Brasilia, Brasilia, Brazil
| | - Carlos Tomaz
- Laboratory of Neuroscience and Behavior, CEUMA University, São Luis, Brazil
| | - Taketoshi Ono
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
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Yoshida T, Yamagata A, Imai A, Kim J, Izumi H, Nakashima S, Shiroshima T, Maeda A, Iwasawa-Okamoto S, Azechi K, Osaka F, Saitoh T, Maenaka K, Shimada T, Fukata Y, Fukata M, Matsumoto J, Nishijo H, Takao K, Tanaka S, Okabe S, Tabuchi K, Uemura T, Mishina M, Mori H, Fukai S. Canonical versus non-canonical transsynaptic signaling of neuroligin 3 tunes development of sociality in mice. Nat Commun 2021; 12:1848. [PMID: 33758193 PMCID: PMC7988105 DOI: 10.1038/s41467-021-22059-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 02/25/2021] [Indexed: 12/31/2022] Open
Abstract
Neuroligin 3 (NLGN3) and neurexins (NRXNs) constitute a canonical transsynaptic cell-adhesion pair, which has been implicated in autism. In autism spectrum disorder (ASD) development of sociality can be impaired. However, the molecular mechanism underlying NLGN3-mediated social development is unclear. Here, we identify non-canonical interactions between NLGN3 and protein tyrosine phosphatase δ (PTPδ) splice variants, competing with NRXN binding. NLGN3-PTPδ complex structure revealed a splicing-dependent interaction mode and competition mechanism between PTPδ and NRXNs. Mice carrying a NLGN3 mutation that selectively impairs NLGN3-NRXN interaction show increased sociability, whereas mice where the NLGN3-PTPδ interaction is impaired exhibit impaired social behavior and enhanced motor learning, with imbalance in excitatory/inhibitory synaptic protein expressions, as reported in the Nlgn3 R451C autism model. At neuronal level, the autism-related Nlgn3 R451C mutation causes selective impairment in the non-canonical pathway. Our findings suggest that canonical and non-canonical NLGN3 pathways compete and regulate the development of sociality.
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Affiliation(s)
- Tomoyuki Yoshida
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan. .,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan. .,JST PRESTO, Saitama, Japan.
| | | | - Ayako Imai
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Juhyon Kim
- Division of Bio-Information Engineering, Faculty of Engineering, University of Toyama, Toyama, Japan
| | - Hironori Izumi
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Shogo Nakashima
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Tomoko Shiroshima
- Department of Anatomy, Kitasato University School of Medicine, Kanagawa, Japan
| | - Asami Maeda
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shiho Iwasawa-Okamoto
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Kenji Azechi
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Fumina Osaka
- Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Takashi Saitoh
- Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Katsumi Maenaka
- Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Takashi Shimada
- SHIMADZU Bioscience Research Partnership, Innovation Center, Shimadzu Scientific Instruments, Bothell, WA, USA
| | - Yuko Fukata
- Division of Membrane Physiology, Department of Molecular and Cellular Physiology, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Aichi, Japan
| | - Masaki Fukata
- Division of Membrane Physiology, Department of Molecular and Cellular Physiology, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Aichi, Japan
| | - Jumpei Matsumoto
- Research Center for Idling Brain Science, University of Toyama, Toyama, Japan.,Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- Research Center for Idling Brain Science, University of Toyama, Toyama, Japan.,Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Keizo Takao
- Research Center for Idling Brain Science, University of Toyama, Toyama, Japan.,Life Science Research Center, University of Toyama, Toyama, Japan
| | - Shinji Tanaka
- Department of Cellular Neurobiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shigeo Okabe
- Department of Cellular Neurobiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Katsuhiko Tabuchi
- JST PRESTO, Saitama, Japan.,Department of Molecular and Cellular Physiology, Institute of Medicine, Academic Assembly, Shinshu University, Nagano, Japan.,Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Takeshi Uemura
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan.,Division of Gene Research, Research Center for Supports to Advanced Science, Shinshu University, Nagano, Japan
| | - Masayoshi Mishina
- Brain Science Laboratory, Research Organization of Science and Technology, Ritsumeikan University, Shiga, Japan
| | - Hisashi Mori
- Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Shuya Fukai
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan.
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Kobayashi S, Iwama Y, Nishimaru H, Matsumoto J, Setogawa T, Ono T, Nishijo H. Examination of the Prefrontal Cortex Hemodynamic Responses to the Fist-Edge-Palm Task in Naïve Subjects Using Functional Near-Infrared Spectroscopy. Front Hum Neurosci 2021; 15:617626. [PMID: 33633554 PMCID: PMC7901956 DOI: 10.3389/fnhum.2021.617626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/23/2020] [Accepted: 01/15/2021] [Indexed: 01/12/2023] Open
Abstract
The Fist-Edge-Palm (FEP) task, a manual hand task, has been used to detect frontal dysfunctions in clinical situations: its performance failures are observed in various prefrontal cortex (PFC)-related disorders, including schizophrenia. However, previous imaging studies reported that the performance of the FEP task activated motor-related areas, but not the PFC. Here, we aimed to investigate the relationships between the performance of the FEP task and PFC functions. Hemodynamic activity in the PFC, including the dorsolateral PFC (area 46) and frontal pole (area 10), was recorded. Healthy young subjects performed the FEP task as well as a palm tapping (PT) task (control task) three times. The subjects also completed a Wisconsin Card Sorting Test (WCST) and Schizotypal Personality Scale (STA) questionnaire. We found that hemodynamic activity (Oxy-Hb) in the PFC increased in the first trial of the FEP task but decreased considerably in the second and third trials compared to the PT task. The number of performance errors in the FEP task also decreased in the second and third trials. Error reduction (i.e., learning) in the FEP task between the first and second trials was negatively correlated with schizotypal trait and the number of perseveration errors in the WCST. Furthermore, changes in the PFC hemodynamic activity between the first and second trials were positively correlated with error reduction in the FEP task between the first and second trials, and negatively correlated with the number of perseveration errors in the WCST. These results suggest that learning in the FEP task requires PFC activation, which is negatively associated with perseveration errors in the WCST. The results further suggest that the FEP task, in conjunction with near-infrared spectroscopy, may be useful as a diagnostic method for various disorders with PFC dysfunction.
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Affiliation(s)
- Satoshi Kobayashi
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Japan Suicide Countermeasures Promotion Center, Tokyo, Japan
| | - Yudai Iwama
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Tsuyoshi Setogawa
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Taketoshi Ono
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan.,Research Center for Idling Brain Science, University of Toyama, Toyama, Japan
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de Araújo MF, de Castro WA, Nishimaru H, Urakawa S, Ono T, Nishijo H. Performance in a gaze-cueing task is associated with autistic traits. AIMS Neurosci 2021; 8:148-160. [PMID: 33490376 PMCID: PMC7815477 DOI: 10.3934/neuroscience.2021007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 09/21/2020] [Accepted: 12/16/2020] [Indexed: 11/23/2022] Open
Abstract
Individuals with autism spectrum disorder (ASD) show impairments in processing social cues such as facial expressions and gaze direction. Several researchers have proposed that autistic traits form a continuum that may be distributed within the general, typically developed, population. Accordingly, several studies have indicated that typically developed individuals with high levels of self-reported autistic traits have autistic-like performance in a variety of paradigms. Here, we designed a gaze-cueing task to examine whether gaze-triggered orienting is related to the extent of typically developed (TD) individuals' autistic traits (determined by their AQ test scores) and whether it is modulated by previous eye contact and different facial expressions. At each trial, TD subjects observed faces with or without eye contact. This facial stimulus then gazed toward the left or right side. Finally, a target appeared on the left or right side of the display and reaction time (RT) to the target was measured. RTs were modulated by congruency between gazing directions and target locations, and by prior eye contact in the congruent trials. In addition, individuals with higher AQ scores were slower at detecting the target when the cue was a happy face. Furthermore, faster RTs in congruent trials were associated with one specific autistic trait (attention switching deficits). Together, these results indicate that autistic traits may influence performance in a gaze cueing task.
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Affiliation(s)
- Mariana Fp de Araújo
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan.,Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria-ES, Brazil
| | - Wagner A de Castro
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Taketoshi Ono
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan
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Labuguen R, Matsumoto J, Negrete SB, Nishimaru H, Nishijo H, Takada M, Go Y, Inoue KI, Shibata T. MacaquePose: A Novel "In the Wild" Macaque Monkey Pose Dataset for Markerless Motion Capture. Front Behav Neurosci 2021; 14:581154. [PMID: 33584214 PMCID: PMC7874091 DOI: 10.3389/fnbeh.2020.581154] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/15/2020] [Indexed: 12/21/2022] Open
Abstract
Video-based markerless motion capture permits quantification of an animal's pose and motion, with a high spatiotemporal resolution in a naturalistic context, and is a powerful tool for analyzing the relationship between the animal's behaviors and its brain functions. Macaque monkeys are excellent non-human primate models, especially for studying neuroscience. Due to the lack of a dataset allowing training of a deep neural network for the macaque's markerless motion capture in the naturalistic context, it has been challenging to apply this technology for macaques-based studies. In this study, we created MacaquePose, a novel open dataset with manually labeled body part positions (keypoints) for macaques in naturalistic scenes, consisting of >13,000 images. We also validated the application of the dataset by training and evaluating an artificial neural network with the dataset. The results indicated that the keypoint estimation performance of the trained network was close to that of a human-level. The dataset will be instrumental to train/test the neural networks for markerless motion capture of the macaques and developments of the algorithms for the networks, contributing establishment of an innovative platform for behavior analysis for non-human primates for neuroscience and medicine, as well as other fields using macaques as a model organism.
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Affiliation(s)
- Rollyn Labuguen
- Department of Human Intelligence Systems, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan
| | | | - Salvador Blanco Negrete
- Department of Human Intelligence Systems, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan
| | | | - Hisao Nishijo
- Systems Emotional Science, University of Toyama, Toyama, Japan
| | - Masahiko Takada
- Systems Neuroscience Section, Department of Neuroscience, Primate Research Institute, Kyoto University, Inuyama, Japan
| | - Yasuhiro Go
- Cognitive Genomics Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS) National Institutes of Natural Sciences, Okazaki, Japan.,Department of System Neuroscience, National Institute for Physiological Sciences, Okazaki, Japan
| | - Ken-Ichi Inoue
- Systems Neuroscience Section, Department of Neuroscience, Primate Research Institute, Kyoto University, Inuyama, Japan
| | - Tomohiro Shibata
- Department of Human Intelligence Systems, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan
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Yoshida M, Chinzorig C, Matsumoto J, Nishimaru H, Ono T, Yamazaki M, Nishijo H. Configural Cues Associated with Reward Elicit Theta Oscillations of Rat Retrosplenial Cortical Neurons Phase-Locked to LFP Theta Cycles. Cereb Cortex 2021; 31:2729-2741. [PMID: 33415336 DOI: 10.1093/cercor/bhaa395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Previous behavioral studies implicated the retrosplenial cortex (RSC) in stimulus-stimulus associations, and also in the retrieval of remote associative memory based on EEG theta oscillations. However, neural mechanisms involved in the retrieval of stored information of such associations and memory in the RSC remain unclear. To investigate the neural mechanisms underlying these processes, RSC neurons and local field potentials (LFPs) were simultaneously recorded from well-trained rats performing a cue-reward association task. In the task, simultaneous presentation of two multimodal conditioned stimuli (configural CSs) predicted a reward outcome opposite to that associated with the individual presentation of each elemental CS. Here, we show neurophysiological evidence that the RSC is involved in stimulus-stimulus association where configural CSs are discriminated from each elementary CS that is a constituent of the configural CSs, and that memory retrieval of rewarding CSs is associated with theta oscillation of RSC neurons during CS presentation, which is phase-locked to LFP theta cycles. The results suggest that cue (elementary and configural CSs)-reinforcement associations are stored in the RSC neural circuits, and are retrieved in synchronization with LFP theta rhythm.
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Affiliation(s)
- Masashi Yoshida
- Department of Anesthesiology, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Choijiljav Chinzorig
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan.,Department of Physiology, School of Bio-medicine, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia
| | - Jumpei Matsumoto
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hiroshi Nishimaru
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan.,Graduate School of Innovative Life Science, University of Toyama, Toyama 930-0194, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
| | - Taketoshi Ono
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Mitsuaki Yamazaki
- Department of Anesthesiology, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hisao Nishijo
- Department of System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan.,Graduate School of Innovative Life Science, University of Toyama, Toyama 930-0194, Japan.,Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama 930-0194, Japan
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Pham TN, Nishijo M, Pham TT, Vu HT, Tran NN, Tran AH, Do Q, Takiguchi T, Nishino Y, Nishijo H. Dioxin exposure and sexual dimorphism of gaze behavior in prepubertal Vietnamese children living in Da Nang, a hot spot for dioxin contamination. Sci Total Environ 2020; 749:141083. [PMID: 32829268 DOI: 10.1016/j.scitotenv.2020.141083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/17/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
Previous studies have reported that dioxin exposure alters sexual dimorphism of play behavior in pre-pubertal children. We aimed to investigate the effects of perinatal dioxin exposure, indicated by dioxins in breast milk, on sexual dimorphism of gaze behavior after adjusting for salivary testosterone (T). Participants were pre-pubertal children in a hot spot for dioxin contamination originating from herbicide spraying in Vietnam. We used eye tracking to assess gaze behavior in 172 children (100 boys and 72 girls) aged 8-9 years. Two sets of 15 pairs of pictures, one oriented towards boys and one oriented towards girls, containing 5 pairs of toy photos (non-biological stimuli) and 10 pairs of human line drawings (biological stimuli) were shown to all children. The total fixation duration for each picture was extracted using Tobii studio software and a feminine index of gaze behavior was defined as the ratio of the summed fixation duration for the girl- vs boy-oriented versions of each stimuli. When viewing non-biological stimuli, feminine index scores significantly increased with TCDD (β = 0.294) in girls only. For biological stimuli, however, feminine index scores significantly increased with TEQ-PCDD/Fs (β = 0.269) in boys and with TCDD in girls (β = 0.286). These associations were significant even after adjusting for salivary T levels, which were inversely associated with some dioxin congeners in girls. In addition, increased feminine index scores for biological stimuli were associated with lower cognitive scores for hand-movement and word-order tests in boys and for face-recognition tests in girls examined at 5 years of age. In conclusion, these results suggest that perinatal dioxin exposure may increase visual interest in girl-oriented objects through impairment of cognitive abilities in pre-pubertal Vietnamese children. PCDD congeners were associated with gaze behavior independently of T levels in boys, while this was only the case for TCDD levels in girls.
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Affiliation(s)
- Thao Ngoc Pham
- Department of Public Health, Kanazawa Medical University, Japan; Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Viet Nam
| | - Muneko Nishijo
- Department of Public Health, Kanazawa Medical University, Japan.
| | - Tai The Pham
- Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Viet Nam
| | - Hoa Thi Vu
- Department of Public Health, Kanazawa Medical University, Japan
| | | | - Anh Hai Tran
- Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Viet Nam
| | - Quyet Do
- Biomedical and Pharmaceutical Research Center, Vietnamese Military Medical University, Viet Nam
| | | | | | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine, University of Toyama, Japan
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Pham NT, Nishijo M, Nghiem TTG, Pham TT, Tran NN, Le VQ, Vu TH, Tran HA, Phan HAV, Do Q, Takiguchi T, Nishino Y, Nishijo H. Effects of perinatal dioxin exposure on neonatal electroencephalography (EEG) activity of the quiet sleep stage in the most contaminated area from Agent Orange in Vietnam. Int J Hyg Environ Health 2020; 232:113661. [PMID: 33296778 DOI: 10.1016/j.ijheh.2020.113661] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/23/2020] [Accepted: 11/01/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To investigate the effects of perinatal dioxin exposure indicated by dioxins in breast milk on neonatal electroencephalography (EEG) power in the quiet sleep stage, and associations with neurodevelopmental outcomes at 2 years of age. STUDY DESIGN Fifty-one mother-newborn pairs were enrolled for neonatal EEG analysis in the quiet sleep stage from a birth cohort recruited at a prefecture hospital in Bien Hoa city, Vietnam. Relative EEG power in intra-burst-intervals and high-voltage-bursts in the trace alternant pattern were computed from EEG data during the quiet sleep stage. Forty-three mother-child pairs participated in a 2-year follow-up survey to examine neurodevelopment using the Bayley-III scale and gaze behavior exhibited by fixation duration on the face of a child talking in videos. The general linear model and regression linear model were used for data analysis after adjusting for confounding factors. RESULTS Perinatal dioxin exposure, particularly 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure, influenced relative EEG power values mainly in the intra-burst-interval part of the trace alternant pattern in the quiet sleep stage. In intra-burst-intervals, decreased frontal delta power and increased frontal and parietal alpha power values in the left hemisphere and temporal beta power values in the right hemisphere were associated with increased TCDD exposure, with significant dose-response relationships. Almost none of the relative power values in these brain regions were associated with Bayley III scores, but relative delta power values were significantly associated with face fixation duration in left frontal and parietal regions at 2 years of age. CONCLUSION Perinatal dioxin exposure influences neuronal activity in the quiet sleep stage, leading to poor communication ability indicated by gaze behavior in early childhood.
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Affiliation(s)
- Ngoc Thao Pham
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Muneko Nishijo
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan.
| | - Thi Thuy Giang Nghiem
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan
| | - The Tai Pham
- Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Ngoc Nghi Tran
- Ministry of Health, Vietnamese Government, Hanoi, Viet Nam
| | - Van Quan Le
- Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Thi Hoa Vu
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Hai Anh Tran
- Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Huy Anh Vu Phan
- Department of Health, Dongnai Prefectural Government, Bienhoa, Dongnai, Viet Nam
| | - Quyet Do
- Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Viet Nam
| | - Tomoya Takiguchi
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Yoshikazu Nishino
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine, University of Toyama, Toyama, Japan
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Yasumoto T, Takamura Y, Tsuji M, Nakayama T, Imamura K, Inoue H, Nakamura S, Inoue T, Kimura AM, Yano S, Nishijo H, Kiuchi Y, Teplow DB, Ono K. High molecular weight amyloid β
1‐42
oligomers induce neurotoxicity via plasma membrane damage. Alzheimers Dement 2020. [DOI: 10.1002/alz.037546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Tomio Inoue
- Showa University School of Dentistry Tokyo Japan
| | | | | | | | - Yuji Kiuchi
- Showa University School of Medicine Tokyo Japan
| | | | - Kenjiro Ono
- Showa University School of Medicine Tokyo Japan
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Ochi R, Fujita N, Goto N, Nguyen ST, Le DT, Matsushita K, Ono T, Nishijo H, Urakawa S. Region-specific brain area reductions and increased cholecystokinin positive neurons in diabetic OLETF rats: implication for anxiety-like behavior. J Physiol Sci 2020; 70:42. [PMID: 32938363 PMCID: PMC10717394 DOI: 10.1186/s12576-020-00771-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 05/15/2020] [Accepted: 09/07/2020] [Indexed: 11/10/2022]
Abstract
Metabolic disorders can induce psychiatric comorbidities. Both brain and neuronal composition imbalances reportedly induce an anxiety-like phenotype. We hypothesized that alterations of localized brain areas and cholecystokinin (CCK) and parvalbumin (PV) expression could induce anxiety-like behavior in type 2 diabetic Otsuka Long-Evans Tokushima fatty (OLETF) rats. Twenty-week-old OLETF and non-diabetic Long-Evans Tokushima Otsuka (LETO) rats were used. The areas of corticolimbic regions were smaller in OLETF rats. The densities of CCK positive neurons in the lateral and basolateral amygdala, hippocampal cornu ammonis area 2, and prelimbic cortex were higher in OLETF rats. The densities of PV positive neurons were comparable between OLETF and LETO rats. Locomotion in the center zone in the open field test was lower in OLETF rats. These results suggest that imbalances of specific brain region areas and neuronal compositions in emotion-related areas increase the prevalence of anxiety-like behaviors in OLETF rats.
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Affiliation(s)
- Ryosuke Ochi
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Naoto Fujita
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Natsuki Goto
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Son Tien Nguyen
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
- Department of Rheumatology and Endocrinology, 103 Military Hospital, Vietnam Military Medical University, 160, Phung Hung Street, Phuc La, Ha Dong, Hanoi, 12108, Vietnam
| | - Duc Trung Le
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
- Department of Neurology, 103 Military Hospital, Vietnam Military Medical University, 160, Phung Hung Street, Phuc La, Ha Dong, Hanoi, 12108, Vietnam
| | - Kojiro Matsushita
- Department of Mechanical Engineering, Facility of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Taketoshi Ono
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani 2630, Toyama, 930-0152, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani 2630, Toyama, 930-0152, Japan
| | - Susumu Urakawa
- Department of Musculoskeletal Functional Research and Regeneration, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
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Munkhzaya U, Chinzorig C, Matsumoto J, Nishimaru H, Ono T, Nishijo H. Rat Paraventricular Neurons Encode Predictive and Incentive Information of Reward Cues. Front Behav Neurosci 2020; 14:565002. [PMID: 33033475 PMCID: PMC7509094 DOI: 10.3389/fnbeh.2020.565002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/23/2020] [Accepted: 08/14/2020] [Indexed: 12/24/2022] Open
Abstract
The paraventricular nucleus of the thalamus (PVT) has been implicated in cue-induced motivated behaviors. Although reward-associated cues (conditioned stimuli, CSs) contain different types of information including predictive information of future reward delivery and incentive (motivational) value of the reward, it remains unknown whether PVT neurons represent predictive and incentive information of CSs. It is suggested that neural activity just after the onset of CSs (early activity) and that just before reward delivery (late activity) might more strongly represent predictive and incentive information, respectively. In this study, rats were trained to lick a tube, which was protruded close to their mouth just after a CS, to obtain a reward (sucrose or water) (cue-induced licking task). Auditory and visual CSs were used: each elemental cue (CS) predicted reward or non-reward outcome, while simultaneous presentation of the two elemental cues (configural cues) predicted the opposite reward outcome. We recorded PVT neurons in the cue-induced licking task, and report that half of the CS-responsive PVT neurons responded selectively to the CSs predicting reward outcome regardless of physical property of the cues (CS+-selective). In addition, the early activity of the CS+-selective neurons discriminated reward/non-reward association (predictive information) and was less sensitive to reward value and motivation reflected by lick latency (incentive information), while the late activity of the CS+-selective neurons was correlated with reward value and motivation rather than reward/non-reward association. Early and late population activity of the CS+-selective neurons also represented predictive and incentive information of the CSs, respectively. On the other hand, activity of more than half of the PVT neurons was correlated with individual licking during licking to acquire reward. Taken together, the results suggest that the PVT neurons engage in different neural processes involved in cue-induced motivated behaviors: CS encoding to determine reward availability and form motivation for reward-seeking behavior, and hedonic mouth movements during reward consumption.
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Affiliation(s)
- Unur Munkhzaya
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Choijiljav Chinzorig
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Department of Physiology, School of Bio-Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
| | - Taketoshi Ono
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Research Center for Idling Brain Science (RCIBS), University of Toyama, Toyama, Japan
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Nakamura T, Dinh TH, Asai M, Nishimaru H, Matsumoto J, Takamura Y, Hori E, Honda S, Yamada H, Mihara T, Matsumoto M, Nishijo H. Non-invasive electroencephalographical (EEG) recording system in awake monkeys. Heliyon 2020; 6:e04043. [PMID: 32490247 PMCID: PMC7260294 DOI: 10.1016/j.heliyon.2020.e04043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/21/2019] [Revised: 07/29/2019] [Accepted: 05/19/2020] [Indexed: 12/03/2022] Open
Abstract
Background Human clinical studies reported that several electroencephalographical (EEG) parameters can be used as biomarkers of psychiatric disorders. EEGs recorded from non-human primates (monkeys) is useful for understanding of human pathologies of psychiatric disorders and development of new therapeutic agents. New methods In this study, we expand a previous non-invasive head holding system with face masks for awake monkeys to be applied to scalp EEG recording. The new design of a head holding system allows to attach scalp EEG electrodes on the positions comparable to human electrode placement and to present auditory stimuli. Results With this system, we could record auditory evoked potentials (AEPs) in auditory sensory gating and oddball paradigms, which are often used as biomarkers of psychiatric disorders in animal models and human patients. The recorded AEPs were comparable to previous human clinical data. Comparison with existing methods Compared with previous non-invasive head holding systems, top, side (cheek and ears), and rear of the head can be open for attachment of EEG electrodes and auditory stimulation in the present system. Conclusions The results suggest that the present system is useful in EEG recording from awake monkeys. Furthermore, this system can be applied to eye-tracking and chronic intra-cerebral recording experiments.
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Affiliation(s)
- Tomoya Nakamura
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan.,Department of Anatomy, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Trong Ha Dinh
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Makoto Asai
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Hiroshi Nishimaru
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Jumpei Matsumoto
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Yusaku Takamura
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Etsuro Hori
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Sokichi Honda
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Hiroshi Yamada
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Takuma Mihara
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Mitsuyuki Matsumoto
- Candidate Discovery Science Labs, Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki 305-8585, Japan
| | - Hisao Nishijo
- System Emotional Science, Faculty of Medicine, University of Toyama, Toyama 930-0194, Japan
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Ito D, Numano T, Ueki T, Habe T, Maeno T, Takamoto K, Igarashi K, Maharjan S, Mizuhara K, Nishijo H. Magnetic resonance elastography of the supraspinatus muscle: A preliminary study on test-retest repeatability and wave quality with different frequencies and image filtering. Magn Reson Imaging 2020; 71:27-36. [PMID: 32325234 DOI: 10.1016/j.mri.2020.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 12/17/2022]
Abstract
The purpose of this study was to determine an optimal condition (vibration frequency and image filtering) for stiffness estimation with high accuracy and stiffness measurement with high repeatability in magnetic resonance elastography (MRE) of the supraspinatus muscle. Nine healthy volunteers underwent two MRE exams separated by at least a 30 min break, on the same day. MRE acquisitions were performed with a gradient-echo type multi-echo MR sequence at 75, 100, and 125 Hz pneumatic vibration. Wave images were processed by a bandpass filter or filter combining bandpass and directional filters (bandpass-directional filter). An observer specified the region of interest (ROI) on clear wave propagation in the supraspinatus muscle, within which the observer measured the stiffness. This study assessed wave image quality according to two indices, as a substitute for the assessment of the accuracy of the stiffness estimation. One is the size of the clear wave propagation area (ROI size used to measure the stiffness) and the other is the qualitative stiffness resolution score in that area. These measurements made by the observer were repeated twice at least one month apart after each MRE exam. This study assessed the intra-examiner and observer repeatability of the stiffness value, ROI size and resolution score in each combination of vibration frequency and image filter. Repeatability of the data was analyzed using the intraclass correlation coefficient (ICC) and 95% limits-of-agreement (LOA) in Bland-Altman analysis. The analyses on intra-examiner and observer repeatability of stiffness indicated that the ICC and 95% LOA were not varied greatly depending on vibration frequency and image filter (intra-examiner repeatability, ICC range, 0.79 to 0.88; 95% LOA range, ±23.95 to ±32.42%, intra-observer repeatability, ICC range, 0.98 to 1.00; 95% LOA range, ±5.10 to ±10.99%). In the analyses on intra-examiner repeatability of ROI size, ICCs were rather low (ranging from: 0.03 to 0.69) while 95% LOA was large in all the combinations of vibration frequency and image filter (ranging from: ±62.66 to ±83.33%). In the analyses on intra-observer repeatability of ROI size, ICCs were sufficiently high in the total combination of vibration frequency and image filter (ranging from 0.80 to 0.87) while the 95% LOAs were better (lower) in the bandpass-directional filter than the bandpass filter (bandpass directional filter vs. bandpass filter, ±28.81 vs. ±54.83% at 75 Hz; ±25.63 vs. ±37.83% at 100 Hz; ±34.51 vs. ±43.36% at 125 Hz). In the analyses on intra-examiner and observer repeatability of resolution score, the mean difference (bias) between the two exams (or observations) was significantly low and there was almost no difference across all the combinations of vibration frequency and image filter (range of bias: -0.11-0.11 and -0.17-0.00, respectively). Additionally, effects of vibration frequency and image filter on wave image quality (ROI size and resolution score) were assessed separately in each exam. Both mean ROI size and resolution score in the bandpass-directional filter were larger than those in the bandpass filter. Among the data in the bandpass-directional filter, mean ROI size was larger at 75 and 100 Hz, and mean resolution score was larger at 100 and 125 Hz. Taking into consideration with the results of repeatability and wave image quality, the present results suggest that optimal vibration frequency and image filter for MRE of the supraspinatus muscles is 100 Hz and bandpass-directional filter, respectively.
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Affiliation(s)
- Daiki Ito
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan; Office of Radiation Technology, Keio University Hospital, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Health Research Institute, National Institute of Advanced Industrial Science and Technology, 1-2-1, Namiki, Tsukuba-shi, Ibaraki 305-8564, Japan
| | - Tomokazu Numano
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan; Health Research Institute, National Institute of Advanced Industrial Science and Technology, 1-2-1, Namiki, Tsukuba-shi, Ibaraki 305-8564, Japan.
| | - Takamichi Ueki
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Tetsushi Habe
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan; Office of Radiation Technology, Keio University Hospital, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Toshiki Maeno
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Kouichi Takamoto
- Department of Sport and Health Sciences, Faculty of Human Sciences, University of East Asia, 2-1, Ichinomiyagakuen-cho, Shimonoseki-shi, Yamaguchi 751-8503, Japan; System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630, Sugitani, Toyama 930-0194, Japan
| | - Keisuke Igarashi
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Surendra Maharjan
- Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan
| | - Kazuyuki Mizuhara
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 1-2-1, Namiki, Tsukuba-shi, Ibaraki 305-8564, Japan; Department of Mechanical Engineering, Tokyo Denki University, 5, Senju Asahicho, Adachi-ku, Tokyo 120-8551, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630, Sugitani, Toyama 930-0194, Japan
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Nguyen NT, Takakura H, Nishijo H, Ueda N, Ito S, Fujisaka M, Akaogi K, Shojaku H. Cerebral Hemodynamic Responses to the Sensory Conflict Between Visual and Rotary Vestibular Stimuli: An Analysis With a Multichannel Near-Infrared Spectroscopy (NIRS) System. Front Hum Neurosci 2020; 14:125. [PMID: 32372931 PMCID: PMC7187689 DOI: 10.3389/fnhum.2020.00125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/09/2019] [Accepted: 03/19/2020] [Indexed: 12/11/2022] Open
Abstract
Sensory conflict among visual, vestibular, and somatosensory information induces vertiginous sensation and postural instability. To elucidate the cognitive mechanisms of the integration between the visual and vestibular cues in humans, we analyzed the cortical hemodynamic responses during sensory conflict between visual and horizontal rotatory vestibular stimulation using a multichannel near-infrared spectroscopy (NIRS) system. The subjects sat on a rotatory chair that was accelerated at 3°/s2 for 20 s to the right or left, kept rotating at 60°/s for 80 s, and then decelerated at 3°/s2 for 20 s. The subjects were instructed to watch white stripes projected on a screen surrounding the chair during the acceleration and deceleration periods. The white stripes moved in two ways; in the "congruent" condition, the stripes moved in the opposite direction of chair rotation at 3°/s2 (i.e., natural visual stimulation), whereas in the "incongruent" condition, the stripes moved in the same direction of chair rotation at 3°/s2 (i.e., conflicted visual stimulation). The cortical hemodynamic activity was recorded from the bilateral temporoparietal regions. Statistical analyses using NIRS-SPM software indicated that hemodynamic activity increased in the bilateral temporoparietal junctions (TPJs) and human MT+ complex, including the medial temporal (MT) area and medial superior temporal (MST) area in the incongruent condition. Furthermore, the subjective strength of the vertiginous sensation was negatively correlated with hemodynamic activity in the dorsal part of the supramarginal gyrus (SMG) in and around the intraparietal sulcus (IPS). These results suggest that sensory conflict between the visual and vestibular stimuli promotes cortical cognitive processes in the cortical network consisting of the TPJ, the medial temporal gyrus (MTG), and IPS, which might contribute to self-motion perception to maintain a sense of balance or equilibrioception during sensory conflict.
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Affiliation(s)
- Nghia Trong Nguyen
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Hiromasa Takakura
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Hisao Nishijo
- System Emotional Science Laboratory, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Naoko Ueda
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Shinsuke Ito
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Michiro Fujisaka
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Katsuichi Akaogi
- Department of Otorhinolaryngology, Toyama Red Cross Hospital, Toyama, Japan
| | - Hideo Shojaku
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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