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Sanches E, Ho D, van de Looij Y, Aebi Toulotte A, Baud L, Bouteldja F, Barraud Q, Araneda R, Bleyenheuft Y, Brochard S, Kathe C, Courtine G, Sizonenko S. Early intensive rehabilitation reverses locomotor disruption, decrease brain inflammation and induces neuroplasticity following experimental Cerebral Palsy. Brain Behav Immun 2024; 121:303-316. [PMID: 39098438 DOI: 10.1016/j.bbi.2024.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/17/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024] Open
Abstract
BACKGROUND Cerebral Palsy (CP) is a major cause of motor and cognitive disability in children due to injury to the developing brain. Early intensive sensorimotor rehabilitation has been shown to change brain structure and reduce CP symptoms severity. We combined environmental enrichment (EE) and treadmill training (TT) to observe the effects of a one-week program of sensorimotor stimulation (EETT) in animals exposed to a CP model and explored possible mechanisms involved in the functional recovery. METHODS Pregnant Wistar rats were injected with Lipopolysaccharide (LPS - 200 µg/kg) intraperitoneally at embryonic days 18 and 19. At P0, pups of both sexes were exposed to 20' anoxia at 37 °C. From P2 to P21, hindlimbs were restricted for 16 h/day during the dark cycle. EETT lasted from P21 to P27. TT - 15 min/day at 7 cm/s. EE - 7 days in enriched cages with sensorimotor stimulus. Functional 3D kinematic gait analysis and locomotion were analyzed. At P28, brains were collected for ex-vivo MRI and histological assessment. Neurotrophins and key proteins involved in CNS function were assessed by western blotting. RESULTS CP model caused gross and skilled locomotor disruption and altered CNS neurochemistry. EETT reversed locomotor dysfunction with minor effects over gait kinematics. EETT also decreased brain inflammation and glial activation, preserved myelination, upregulated BDNF signaling and modulated the expression of proteins involved in excitatory synaptic function in the brain and spinal cord. CONCLUSIONS Using this translational approach based on intensive sensorimotor rehabilitation, we highlight pathways engaged in the early developmental processes improving neurological recovery observed in CP.
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Affiliation(s)
- Eduardo Sanches
- Division of Child Development and Growth, Department of Pediatrics, School of Medicine, University of Geneva, Geneva, Switzerland
| | - Dini Ho
- Division of Child Development and Growth, Department of Pediatrics, School of Medicine, University of Geneva, Geneva, Switzerland
| | - Yohan van de Looij
- Division of Child Development and Growth, Department of Pediatrics, School of Medicine, University of Geneva, Geneva, Switzerland; Center for Biomedical Imaging (CIBM), Animal Imaging Technology Section, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Audrey Aebi Toulotte
- Division of Child Development and Growth, Department of Pediatrics, School of Medicine, University of Geneva, Geneva, Switzerland
| | - Laetitia Baud
- Defitech Center for Interventional Neurotherapies (NeuroRestore), EPFL/CHUV/UNIL, Lausanne, Switzerland; NeuroX Institute and Brain Mind Institute, School of Life Sciences, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland; Department of Clinical Neuroscience, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Farha Bouteldja
- Department of Fundamental Neurosciences, University of Lausanne (Unil), Switzerland
| | - Quentin Barraud
- Defitech Center for Interventional Neurotherapies (NeuroRestore), EPFL/CHUV/UNIL, Lausanne, Switzerland; NeuroX Institute and Brain Mind Institute, School of Life Sciences, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland; Department of Clinical Neuroscience, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Rodrigo Araneda
- Institute of Neuroscience, Université Catholique de Louvain, Brussels, Belgium; Exercise and Rehabilitation Science Institute, Faculty of Rehabilitation Science, Universidad Andres Bello, Santiago, Chile
| | - Yannick Bleyenheuft
- Institute of Neuroscience, Université Catholique de Louvain, Brussels, Belgium
| | - Sylvain Brochard
- Physical and Medical Rehabilitation Department, CHRU Brest, Brest, France; Paediatric Physical and Medical Rehabilitation Department, Fondation ILDYS, Brest, France; University of Western Brittany, Laboratory of Medical Information Processing, Inserm U1101, Brest, France
| | - Claudia Kathe
- Department of Fundamental Neurosciences, University of Lausanne (Unil), Switzerland
| | - Grégoire Courtine
- Defitech Center for Interventional Neurotherapies (NeuroRestore), EPFL/CHUV/UNIL, Lausanne, Switzerland; NeuroX Institute and Brain Mind Institute, School of Life Sciences, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland; Department of Clinical Neuroscience, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Stéphane Sizonenko
- Division of Child Development and Growth, Department of Pediatrics, School of Medicine, University of Geneva, Geneva, Switzerland.
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Mueller C, Goodman AM, Nenert R, Allendorfer JB, Philip NS, Correia S, Oster RA, LaFrance WC, Szaflarski JP. Repeatability of neurite orientation dispersion and density imaging in patients with traumatic brain injury. J Neuroimaging 2023; 33:802-824. [PMID: 37210714 PMCID: PMC10524628 DOI: 10.1111/jon.13125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND AND PURPOSE The aim of this study was to assess the repeatability of neurite orientation dispersion and density imaging in healthy controls (HCs) and traumatic brain injury (TBI). METHODS Seventeen HCs and 48 TBI patients were scanned twice over 18 weeks with diffusion imaging. Orientation dispersion (ODI), neurite density (NDI), and the fraction of isotropic diffusion (F-ISO) were quantified in regions of interest (ROIs) from a gray matter, subcortical, and white matter atlas and compared using the coefficient of variation for repeated measures (CVrep ), which quantifies the expected percent change on repeated measurement. We used a modified signed likelihood ratio test (M-SLRT) to compare the CVrep between groups in each ROI while correcting for multiple comparisons. RESULTS NDI exhibited excellent repeatability in both groups; the only group difference was found in the fusiform gyrus, where HCs exhibited better repeatability (M-SLRT = 9.463, p = .0021). ODI also had excellent repeatability in both groups, although repeatability was significantly better in HCs in 16 cortical ROIs (p < .0022) and in the bilateral white matter and bilateral cortex (p < .0027). F-ISO exhibited relatively poor repeatability in both groups, with few group differences. CONCLUSION Overall, the repeatability of the NDI, ODI, and F-ISO metrics over an 18-week period is acceptable for assessing the effects of behavioral or pharmacological interventions, though caution is advised when assessing F-ISO changes over time.
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Affiliation(s)
- Christina Mueller
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, 1719 6th Ave S, Birmingham, AL 35233
| | - Adam M. Goodman
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, 1719 6th Ave S, Birmingham, AL 35233
| | - Rodolphe Nenert
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, 1719 6th Ave S, Birmingham, AL 35233
| | - Jane B. Allendorfer
- Departments of Neurology and Neurobiology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Noah S. Philip
- Center for Neurorestoration and Neurotechnology, VA Providence Healthcare System, Providence, RI
| | - Stephen Correia
- Department of Psychiatry, Butler Hospital / Brown University, Providence, RI
| | - Robert A. Oster
- Department of Medicine, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - W. Curt LaFrance
- Center for Neurorestoration and Neurotechnology, VA Providence Healthcare System, Providence, RI
- Departments of Psychiatry and Neurology, Rhode Island Hospital / Brown University, Providence, RI
| | - Jerzy P. Szaflarski
- Departments of Neurology, Neurobiology and Neurosurgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
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Singh AP, Jain VS, Yu JPJ. Diffusion radiomics for subtyping and clustering in autism spectrum disorder: A preclinical study. Magn Reson Imaging 2023; 96:116-125. [PMID: 36496097 PMCID: PMC9815912 DOI: 10.1016/j.mri.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/24/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Autism spectrum disorder (ASD) is a highly prevalent, heterogenous neurodevelopmental disorder. Neuroimaging methods such as functional, structural, and diffusion MRI have been used to identify candidate imaging biomarkers for ASD, but current findings remain non-specific and likely arise from the heterogeneity present in ASD. To account for this, efforts to subtype ASD have emerged as a potential strategy for both the study of ASD and advancement of tailored behavioral therapies and therapeutics. Towards these ends, to improve upon current neuroimaging methods, we propose combining biologically sensitive neurite orientation dispersion and density index (NODDI) diffusion MR imaging with radiomics image processing to create a new methodological approach that, we hypothesize, can sensitively and specifically capture neurobiology. We demonstrate this method can sensitively distinguish differences between four genetically distinct rat models of ASD (Fmr1, Pten, Nrxn1, Disc1). Further, we demonstrate diffusion radiomic analyses hold promise for subtyping in ASD as we show unsupervised clustering of NODDI radiomic data generates clusters specific to the underlying genetic differences between the animal models. Taken together, our findings suggest the unique application of radiomic analysis on NODDI diffusion MRI may have the capacity to sensitively and specifically disambiguate the neurobiological heterogeneity present in the ASD population.
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Affiliation(s)
- Ajay P. Singh
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.,Medical Scientist Training Program, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA,Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Vansh S. Jain
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - John-Paul J. Yu
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.,Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA.,Neuroscience Training Program, Wisconsin Institutes for Medical Research, University of Wisconsin–Madison, Madison, WI 53705, USA.,Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI 53706, USA.,Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.,Corresponding Author: John-Paul J. Yu, MD, PhD, Departments of Radiology, Psychiatry, and Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53792,
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Yi SY, Pirasteh A, Wang J, Bradshaw T, Jeffery JJ, Barnett BR, Stowe NA, McMillan AB, Vivas EI, Rey FE, Yu JPJ. 18F-SynVesT-1 PET/MR Imaging of the Effect of Gut Microbiota on Synaptic Density and Neurite Microstructure: A Preclinical Pilot Study. FRONTIERS IN RADIOLOGY 2022; 2:895088. [PMID: 37492655 PMCID: PMC10365022 DOI: 10.3389/fradi.2022.895088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 05/04/2022] [Indexed: 07/27/2023]
Abstract
The gut microbiome profoundly influences brain structure and function. The gut microbiome is hypothesized to play a key role in the etiopathogenesis of neuropsychiatric and neurodegenerative illness; however, the contribution of an intact gut microbiome to quantitative neuroimaging parameters of brain microstructure and function remains unknown. Herein, we report the broad and significant influence of a functional gut microbiome on commonly employed neuroimaging measures of diffusion tensor imaging (DTI), neurite orientation dispersion and density (NODDI) imaging, and SV2A 18F-SynVesT-1 synaptic density PET imaging when compared to germ-free animals. In this pilot study, we demonstrate that mice, in the presence of a functional gut microbiome, possess higher neurite density and orientation dispersion and decreased synaptic density when compared to age- and sex-matched germ-free mice. Our results reveal the region-specific structural influences and synaptic changes in the brain arising from the presence of intestinal microbiota. Further, our study highlights important considerations for the development of quantitative neuroimaging biomarkers for precision imaging in neurologic and psychiatric illness.
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Affiliation(s)
- Sue Y. Yi
- Neuroscience Training Program, Wisconsin Institutes for Medical Research, University of Wisconsin–Madison, Madison, WI, United States
| | - Ali Pirasteh
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - James Wang
- Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Tyler Bradshaw
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Justin J. Jeffery
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Brian R. Barnett
- Neuroscience Training Program, Wisconsin Institutes for Medical Research, University of Wisconsin–Madison, Madison, WI, United States
| | - Nicholas A. Stowe
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Alan B. McMillan
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Eugenio I. Vivas
- Department of Bacteriology, University of Wisconsin–Madison, Madison, WI, United States
- Gnotobiotic Animal Core Facility, Biomedical Research Model Services, University of Wisconsin–Madison, Madison, WI, United States
| | - Federico E. Rey
- Department of Bacteriology, University of Wisconsin–Madison, Madison, WI, United States
| | - John-Paul J. Yu
- Neuroscience Training Program, Wisconsin Institutes for Medical Research, University of Wisconsin–Madison, Madison, WI, United States
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI, United States
- Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
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5
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Zhu L, Li L, Li XZ, Wang L. Mind–Body Exercises for PTSD Symptoms, Depression, and Anxiety in Patients With PTSD: A Systematic Review and Meta-Analysis. Front Psychol 2022; 12:738211. [PMID: 35153889 PMCID: PMC8833099 DOI: 10.3389/fpsyg.2021.738211] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 12/14/2021] [Indexed: 12/12/2022] Open
Abstract
Objectives This study aims to systematically analyze the effects of mind–body exercises on post-traumatic stress disorder (PTSD) symptoms, depression, and anxiety in patients with PTSD. Furthermore, it intends to provide scientific evidence-based exercise prescriptions. Methods Chinese (i.e., China National Knowledge Infrastructure, VIP Database for Chinese Technical Periodicals, and Wanfang) and English (i.e., Web of Science, PubMed, the Cochrane Library, and EMBASE) databases were used as data sources to search for studies on the effects of mind–body exercises on symptoms associated with patients with PTSD from January 1980 to November 2020. After a rigorous screening, 16 eligible randomized controlled trials (RCTs) were included in the meta-analysis. Results Mind–body exercises exerted a significant effect on PTSD symptoms [standard mean difference (SMD) = −0.41, 95% confidence interval (CI) −0.64 to −0.19, p < 0.001], depression (SMD = −0.35, 95% CI: −0.55 to −0.15, p < 0.001), and anxiety (SMD = −0.31, 95% CI: −0.74 to −0.12, p < 0.001) among patients with PTSD. Subgroup analysis demonstrated that 60–150 min per session for 8–16 weeks of mindfulness was more effective in improving symptoms in patients with PTSD under 45 years of age compared with other subgroups. For depression, 150–180 min of yoga exercises once per week was effective. For anxiety, the frequency, timing, duration, and type of mind–body exercises that are most effective in relieving anxiety in patients with PTSD cannot be determined at this time due to the limited number of eligible RCTs. Conclusions Mind–body exercises were found to be significantly effective in improving PTSD symptoms, depression, and anxiety in patients with PTSD. Therefore, they can be used as an adjunct to intervention for symptoms of patients with PTSD. However, this conclusion requires further confirmation through additional scientific and objective RCTs. Systematic Review Registration: Unique Identifier: INPLASY2020120072.
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Affiliation(s)
- Lin Zhu
- School of Wushu and Art, Nanjing Sport Institute, Nanjing, China
| | - Long Li
- School of Wushu and Art, Nanjing Sport Institute, Nanjing, China
- *Correspondence: Long Li
| | - Xiao-zhi Li
- Department of Physical Education, Southeast University, Nanjing, China
| | - Lin Wang
- Department of Physical Education, Wuhan University of Technology, Wuhan, China
- Lin Wang
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6
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Islam MR, Luo R, Valaris S, Haley EB, Takase H, Chen YI, Dickerson BC, Schon K, Arai K, Nguyen CT, Wrann CD. Diffusion tensor-MRI detects exercise-induced neuroplasticity in the hippocampal microstructure in mice. Brain Plast 2020; 5:147-159. [PMID: 33282678 PMCID: PMC7685674 DOI: 10.3233/bpl-190090] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Despite considerable research on exercise-induced neuroplasticity in the brain, a major ongoing challenge in translating findings from animal studies to humans is that clinical and preclinical settings employ very different techniques. Objective: Here we aim to bridge this divide by using diffusion tensor imaging MRI (DTI), an advanced imaging technique commonly applied in human studies, in a longitudinal exercise study with mice. Methods: Wild-type mice were exercised using voluntary free-wheel running, and MRI scans were at baseline and after four weeks and nine weeks of running. Results: Both hippocampal volume and fractional anisotropy, a surrogate for microstructural directionality, significantly increased with exercise. In addition, exercise levels correlated with effect size. Histological analysis showed more PDGFRα+ oligodendrocyte precursor cells in the corpus callosum of running mice. Conclusions: These results provide compelling in vivo support for the concept that similar adaptive changes occur in the brains of mice and humans in response to exercise.
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Affiliation(s)
- Mohammad R Islam
- Cardiovascular Research Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA
| | - Renhao Luo
- Cardiovascular Research Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA
| | - Sophia Valaris
- Cardiovascular Research Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA
| | - Erin B Haley
- Cardiovascular Research Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA
| | - Hajime Takase
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Yinching Iris Chen
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Bradford C Dickerson
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA.,Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Karin Schon
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA
| | - Ken Arai
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Christopher T Nguyen
- Cardiovascular Research Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Christiane D Wrann
- Cardiovascular Research Center, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA.,Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.,Henry and Allison McCance Center for Brain Health, Massachusetts General Hospital, Boston, MA, USA
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7
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Akt dependent adult hippocampal neurogenesis regulates the behavioral improvement of treadmill running to mice model of post-traumatic stress disorder. Behav Brain Res 2019; 379:112375. [PMID: 31759046 DOI: 10.1016/j.bbr.2019.112375] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/19/2019] [Accepted: 11/19/2019] [Indexed: 02/07/2023]
Abstract
Physical exercise is well-established paradigm for improving adult neurogenesis and brain functions. As considered as an alternative therapeutic strategy, treadmill running could reduce cognitive impairment and psychiatric abnormalities associating post-traumatic stress disorder (PTSD), which might associate with the promote effects to adult neurogenesis. In current study, we aimed to address how treadmill exercise benefit adult hippocampal neurogenesis in PTSD model and the underlying molecular mechanism related with Akt signaling. PTSD was induced by exposure to aggressor and treatments were conducted with different intensity of compulsory treadmill running. We observed treadmill running improved hippocampal neurogenesis including proliferation and neural differentiation of neural stem cells (NSCs). Moreover, behavioral tests showed treadmill could attenuate the cognitive deficit and depressive/anxiety like behaviors in correlating with PTSD model. Moreover, treadmill running recovered the Akt activity in hippocampus. Interrupting treadmill running administrated mice with Akt inhibitor GSK690693 resulted in the blocked the effects of treadmill running to hippocampal neurogenesis and behavioral improvement in PTSD mice model. In conclusion, treadmill running could mediate behavioral functions and improve hippocampal neurogenesis in PTSD model by regulating Akt signaling.
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