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Huang X, Guo R, Li C, Long X, Yang T, Hou X, Wei X, Ou M. A case of anti-myelin oligodendrocyte glycoprotein (MOG)-immunoglobulin G (IgG) associated disorder (MOGAD) with clinical manifestations of acute disseminated encephalomyelitis: Secondary to mycoplasma pneumoniae infection. Heliyon 2023; 9:e13470. [PMID: 36814615 DOI: 10.1016/j.heliyon.2023.e13470] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Anti-myelin oligodendrocyte glycoprotein (MOG)-immunoglobulin G (IgG) associated disorder (MOGAD) is an immune-mediated central nervous system (CNS) inflammatory demyelinating disorder that has been widely recognized in recent years. It is distinct from multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD), which are separate disease spectrums. Here we report the case of a 5-year-old boy who was admitted for 3 days with fever, headache, and vomiting. Magnetic resonance imaging revealed abnormal hyperintensity in the left thalamus and positive serum IgM for M. pneumoniae. After treatment with azithromycin, the headache gradually disappeared, but paralysis and urinary retention occurred on the 6th day after admission. MRI re-examination showed that the original abnormal signal in the left thalamus was significantly weakened, but new abnormal signals appeared in the brain and cerebrospinal cord, and the serum MOG-IgG was positive. After treatment, the child has fully recovered and is still receiving follow-up care. We believe that this is a case of MOGAD in a child with a biphasic ADEM phenotype secondary to M. pneumoniae infection, which has potential value in elucidating the pathophysiology of MOGAD.
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Abstract
Neurodegenerative diseases, featured by progressive loss of structure or function of neurons, are considered incurable at present. Movement disorders like tremor and postural instability, cognitive or behavioral disorders such as memory impairment are the most common symptoms of them and the growing patient population of neurodegenerative diseases poses a serious threat to public health and a burden on economic development. Hence, it is vital to prevent the occurrence of the diseases and delay their progress. Vitamin D can be transformed into a hormone in vivo with both genomic and non-genomic actions, exerting diverse physiological effects. Cumulative evidence indicates that vitamin D can ameliorate neurodegeneration by regulating pertinent molecules and signaling pathways including maintaining Ca2+ homeostasis, reducing oxidative stress, inhibiting inflammation, suppressing the formation and aggregation of the pathogenic protein, etc. This review updates discoveries of molecular mechanisms underlying biological functions of vitamin D in neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, multiple sclerosis, and vascular dementia. Clinical trials investigating the influence of vitamin D supplementation in patients with neurodegenerative diseases are also summarized. The synthesized information will probably provoke an enhanced understanding of the neuroprotective roles of vitamin D in the nervous system and provide therapeutic options for patients with neurodegenerative diseases in the future.
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Korostyshevskaya AM, Stankevich JA, Vasilkiv LM, Bogomyakova OB, Korobko DS, Gornostaeva AM, Tulupov AА. CLIPPERS: Multiparametric and quantitative MRI features. Radiol Case Rep 2022; 18:368-376. [PMID: 36411846 PMCID: PMC9674504 DOI: 10.1016/j.radcr.2022.10.043] [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: 08/15/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 11/18/2022] Open
Abstract
Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) is a rare chronic central-nervous-system inflammatory disorder that became known only recently, and the pathogenesis of CLIPPERS remains poorly understood. This report presents clinical and radiological features of a rare case: a young female patient who rapidly died of suspected CLIPPERS. Helpful multiparametric MRI diagnostic criteria are proposed that can help discriminate CLIPPERS from non-CLIPPERS pathologies. We reviewed clinical history, symptoms, quantitative data from brain multiparametric MRI before and after treatment, and histopathological data. Perfusion-weighted imaging revealed a decrease in regional cerebral blood flow by 31% and in cerebral blood volume by 64%, with a moderate increase in transit time and in time to peak by up to 23% in affected pontine and cerebral white matter. As estimated by diffusion tensor imaging, there was elevated density of tracts (n/mm2) and a decrease of fraction anisotropy (×10-3 mm/s2) in the patient's pons as compared to a healthy control: density of tracts = 13.5 vs 12.4 and fraction anisotropy = 0.32 vs 0.45, respectively. Macromolecular proton fraction values proved to be reduced (15.8% and 14.5% in the control, respectively) in the patient's cerebral peduncles by 3% and in the pons by 4.1% and in a periventricular white matter lesion by 6.4% (11.3% in the normal-looking contralateral hemisphere). Based on our findings, we argue that quantitative MRI techniques may be a valuable source of biomarkers and reliable diagnostic criteria and can shed light on the pathogenesis and exact nosological position of this disorder.
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Key Words
- ADC, apparent diffusion coefficient
- CBF, cerebral blood flow
- CLIPPERS
- CNS, central nervous system
- CSF, cerebrospinal fluid
- DOT, density of tracts
- DTI, diffusion tensor imaging
- DWI, diffusion-weighted imaging
- Diffusion tensor imaging
- FLAIR, fluid attenuated inversion recovery
- ITC, International Tomography Center
- MPF, macromolecular proton fraction
- MS, multiple sclerosis
- Macromolecular proton fraction mapping
- PWI, perfusion-weighted imaging
- Perfusion-weighted imaging
- Quantitative MRI
- SWI, susceptibility-weighted imaging
- WI, weighted image
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Affiliation(s)
- Alexandra M. Korostyshevskaya
- The Institute International Tomography Center of the Russian Academy of Sciences, Institutskaya str., Bldg. 3а, Novosibirsk, 630090, Russian Federation
- Federal State Budgetary Scientific Institution «The Federal Research Center of Fundamental and Translational Medicine», 2 Timakova str., Novosibirsk, 630060, Russian Federation
| | - Julia A. Stankevich
- The Institute International Tomography Center of the Russian Academy of Sciences, Institutskaya str., Bldg. 3а, Novosibirsk, 630090, Russian Federation
- Novosibirsk State University, 1, Pirogova str., Novosibirsk, 630090, Russian Federation
| | - Liubov M. Vasilkiv
- The Institute International Tomography Center of the Russian Academy of Sciences, Institutskaya str., Bldg. 3а, Novosibirsk, 630090, Russian Federation
- Novosibirsk State University, 1, Pirogova str., Novosibirsk, 630090, Russian Federation
| | - Olga B. Bogomyakova
- The Institute International Tomography Center of the Russian Academy of Sciences, Institutskaya str., Bldg. 3а, Novosibirsk, 630090, Russian Federation
- Novosibirsk State University, 1, Pirogova str., Novosibirsk, 630090, Russian Federation
- Lavrentyev Institute of Hydrodynamics, 15, Akademika Lavrent'yeva pr., Novosibirsk, 630090, Russian Federation
| | - Denis S. Korobko
- Regional Center for Multiple Sclerosis and other autoimmune diseases of the nervous system, State Budgetary Healthcare Institution of the Novosibirsk Region "State Novosibirsk Regional Clinical Hospital" (GBUZ NSO GNOKB); 126, Nemirovich – Danchenko str., Novosibirsk, 630087, Russian Federation
- Novosibirsk State Medical University; 52, Krasny prospect av., Novosibirsk, 630091, Russian Federation
| | - Alyona M. Gornostaeva
- The Institute International Tomography Center of the Russian Academy of Sciences, Institutskaya str., Bldg. 3а, Novosibirsk, 630090, Russian Federation
- Corresponding author.
| | - Andrey А. Tulupov
- The Institute International Tomography Center of the Russian Academy of Sciences, Institutskaya str., Bldg. 3а, Novosibirsk, 630090, Russian Federation
- Novosibirsk State University, 1, Pirogova str., Novosibirsk, 630090, Russian Federation
- Lavrentyev Institute of Hydrodynamics, 15, Akademika Lavrent'yeva pr., Novosibirsk, 630090, Russian Federation
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Sippel JL, Daly JE, Poggensee L, Ristau KD, Eberhart AC, Tam K, Evans CT, Lancaster B, Wickremasinghe IM, Burns SP, Goldstein B, Smith BM. Modernization of a Large Spinal Cord Injuries and Disorders Registry: The Veterans Administration Experience. Arch Rehabil Res Clin Transl 2022; 4:100237. [PMID: 36545529 PMCID: PMC9761267 DOI: 10.1016/j.arrct.2022.100237] [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] [Indexed: 11/18/2022] Open
Abstract
Since the 1990s, Veterans Health Administration (VHA) has maintained a registry of Veterans with Spinal Cord Injuries and Disorders (SCI/Ds) to guide clinical care, policy, and research. Historically, methods for collecting and recording data for the VHA SCI/D Registry (VSR) have required significant time, cost, and staffing to maintain, were susceptible to missing data, and caused delays in aggregation and reporting. Each subsequent data collection method was aimed at improving these issues over the last several decades. This paper describes the development and validation of a case-finding and data-capture algorithm that uses primary clinical data, including diagnoses and utilization across 9 million VHA electronic medical records, to create a comprehensive registry of living and deceased Veterans seen for SCI/D services since 2012. A multi-step process was used to develop and validate a computer algorithm to create a comprehensive registry of Veterans with SCI/D whose records are maintained in the enterprise wide VHA Corporate Data Warehouse. Chart reviews and validity checks were used to validate the accuracy of cases that were identified using the new algorithm. An initial cohort of 28,202 living and deceased Veterans with SCI/D who were enrolled in VHA care from 10/1/2012 through 9/30/2017 was validated. Tables, reports, and charts using VSR data were developed to provide operational tools to study, predict, and improve targeted management and care for Veterans with SCI/Ds. The modernized VSR includes data on diagnoses, qualifying fiscal year, recent utilization, demographics, injury, and impairment for 38,022 Veterans as of 11/2/2022. This establishes the VSR as one of the largest ongoing longitudinal SCI/D datasets in North America and provides operational reports for VHA population health management and evidence-based rehabilitation. The VSR also comprises one of the only registries for individuals with non-traumatic SCI/Ds and holds potential to advance research and treatment for multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), and other motor neuron disorders with spinal cord involvement. Selected trends in VSR data indicate possible differences in the future lifelong care needs of Veterans with SCI/Ds. Future collaborative research using the VSR offers opportunities to contribute to knowledge and improve health care for people living with SCI/Ds.
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Key Words
- ALS, amyotrophic lateral sclerosis
- ARC, Allocation Resource Center
- ASIA, American Spinal Injury Association Impairment Scale
- Amyotrophic lateral sclerosis
- BI, Business Intelligence
- Big data
- CDW, Corporate Data Warehouse
- CPRS, computerized patient record system
- EMR, electronic medical record
- Electronic health records
- GUI, graphical user interface
- MIO, Management of Information & Outcomes
- MS, multiple sclerosis
- Medical informatics
- Motor neuron disease
- Multiple sclerosis
- Population health
- Population health management
- RHSCIR, Rick Hansen Spinal Cord Injury Registry
- Registries
- Rehabilitation
- SCD, spinal cord dysfunction
- SCI/D, Spinal Cord Injuries and Disorders
- SCIDO, Spinal Cord Injury and Disorders Outcomes
- SCIMS, Spinal Cord Injury Model Systems
- SME, subject matter expert
- Spinal cord injuries
- United States
- VHA, Veterans Health Administration
- VSR, VHA SCI/D Registry
- VSSC, VHA Service Support Center
- Veterans
- VistA, Veteran Health Information Systems and Technology Architecture
- WOC, Without Compensation
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Affiliation(s)
- Jennifer L. Sippel
- Spinal Cord Injuries & Disorders National Program Office (11 SCID), Veterans Health Administration, United States Department of Veterans Affairs, Washington, DC,Corresponding author Jennifer L. Sippel, PhD, Spinal Cord Injuries and Disorders (SCI/D) National Program Office (11SCID), Veterans Health Administration (VHA), 810 Vermont Ave NW, Washington, DC 20420.
| | - Jennifer E. Daly
- Spinal Cord Injuries & Disorders National Program Office (11 SCID), Veterans Health Administration, United States Department of Veterans Affairs, Washington, DC
| | - Linda Poggensee
- Department of Veterans Affairs, Center of Innovation for Complex Chronic Health Care (CINCCH), Edward Hines Junior Hospital, Hines, IL
| | - Kim D. Ristau
- VHA Support Service Center (VSSC), Office of Analytics and Performance, Veterans Health Administration, Department of Veterans Affairs, Washington, DC
| | - Adam C. Eberhart
- Spinal Cord Injuries & Disorders National Program Office (11 SCID), Veterans Health Administration, United States Department of Veterans Affairs, Washington, DC
| | - Katharine Tam
- Spinal Cord Injury Service, John J. Cochran Veterans Hospital, Saint Louis, MO 63106
| | - Charlesnika T. Evans
- Department of Veterans Affairs, Center of Innovation for Complex Chronic Health Care (CINCCH), Edward Hines Junior Hospital, Hines, IL,Center for Health Services and Outcomes Research and Department of Preventive Medicine, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Betsy Lancaster
- VHA Support Service Center (VSSC), Office of Analytics and Performance, Veterans Health Administration, Department of Veterans Affairs, Washington, DC
| | - I. Manosha Wickremasinghe
- Spinal Cord Injuries & Disorders National Program Office (11 SCID), Veterans Health Administration, United States Department of Veterans Affairs, Washington, DC
| | - Stephen P. Burns
- Spinal Cord Injury Service, VA Puget Sound Health Care System, Seattle, WA,Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA
| | - Barry Goldstein
- Spinal Cord Injuries & Disorders National Program Office (11 SCID), Veterans Health Administration, United States Department of Veterans Affairs, Washington, DC,Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA
| | - Bridget M. Smith
- Department of Veterans Affairs, Center of Innovation for Complex Chronic Health Care (CINCCH), Edward Hines Junior Hospital, Hines, IL,Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL
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Sepehri Far S, Amiri B, Sahebozamani M, Ebrahimi HA. Improvement in the multiple sclerosis functional composite score by multi-function swing suspension training program. Mult Scler Relat Disord 2022; 67:104174. [PMID: 36174257 DOI: 10.1016/j.msard.2022.104174] [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: 05/29/2022] [Revised: 08/18/2022] [Accepted: 09/09/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Physical activity has been considered as a promising approach to slow down the disease process in Multiple Sclerosis (MS) patients. The functional impairments of MS have been studied in detail, while evidence of the efficacy of exercise training interventions on the Multiple Sclerosis functional composite (MSFC) score in these patients is limited. The aim of this study was to investigate the improvement in MSFC score by multi-function swing suspension training program (MFSST) in the women with MS. METHODS The patients were divided into two groups as the intervention and control groups. A total of 47 MS patients completed the MSFC components at baseline and after the intervention: the timed 25-foot walk (T25FW); the 9-hole peg test (9HPT); and paced auditory serial addition test (PASAT). Z scores were created for each test based on control means. RESULTS The MSFC score, 9HPT, T25FW, and PASAT showed a significant increment in comparison with the baseline levels in the four, six, and eight weeks following the first exercise session (all p<0.05). These differences in the control group were not significant. The improvement in the MSFC score and the component Z-scores in the intervention groups was found from the fourth week onwards. CONCLUSIONS The study findings highlight that the progression of MS disability can be partially compensated by physical exercise. Overall, these results indicate that MFSST can be used as an effective treatment method in patients suffering from MS. Longer (years) exercise studies with larger samples of MS patients, with different MS subtypes, and of different sex, are needed to evaluate the effect of other types of exercise interventions on the MSFC score in MS patients with different disabilities.
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Affiliation(s)
- Sara Sepehri Far
- Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport, Kerman, Iran
| | - Banafsheh Amiri
- Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport, Kerman, Iran; Department of Biological and Medical Sciences, Faculty of Physical Education and Sport, Comenius University in Bratislava, Slovakia.
| | - Mansour Sahebozamani
- Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport, Kerman, Iran.
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Peterson MD, Lin P, Kamdar N, Marsack-Topolewski CN, Mahmoudi E. Physical and Mental Health Comorbidities Among Adults With Multiple Sclerosis. Mayo Clin Proc Innov Qual Outcomes 2022; 6:55-68. [PMID: 35005438 PMCID: PMC8715377 DOI: 10.1016/j.mayocpiqo.2021.11.004] [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] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To compare the incidence of and adjusted hazard ratios for common cardiometabolic diseases, musculoskeletal disorders, and psychological morbidities among adults with and without multiple sclerosis (MS). PATIENTS AND METHODS Beneficiaries were included if they had an International Classification of Diseases, Ninth Revision, Clinical Modification diagnostic code for MS (n=9815) from a national private insurance claims database (Clinformatics Data Mart; OptumInsight). Adults without MS were also included (n=1,474,232) as a control group. Incidence estimates of common cardiometabolic diseases, musculoskeletal disorders, and psychological morbidities were compared at 5 years of continuous enrollment. Survival models were used to quantify unadjusted and adjusted hazard ratios for incident morbidities. RESULTS Adults with MS had a higher incidence of any common cardiometabolic disease (51.6% [2663 of 5164] vs 36.4% [328,690 of 904,227]), musculoskeletal disorder (68.8% [3411 of 4959] vs 47.5% [512,422 of 1,077,737]), and psychological morbidity (49.4% [3305 of 6691] vs 30.8% [380,893 of 1,235,388]) than adults without MS, and differences were clinically meaningful (all P<.001). Fully adjusted survival models revealed that adults with MS had a greater risk for any (hazard ratio [HR], 1.37; 95% CI, 1.32 to 1.43) and all (HR, 1.19 to 1.48) common cardiometabolic diseases, any (HR, 1.59; 95% CI, 1.53 to 1.64) and all (HR, 1.22 to 2.77) musculoskeletal disorders, and any (HR, 1.57; 95% CI, 1.51 to 1.62) and all (HR, 1.20 to 2.51) but one (impulse control disorders) psychological morbidity. CONCLUSION Adults with MS have a significantly higher risk for development of common cardiometabolic diseases, musculoskeletal disorders, and psychological morbidities (all P<.001) than adults without MS. Efforts are needed to facilitate the development of improved clinical screening algorithms and early interventions to reduce risk of chronic physical and mental disease onset/progression in this higher risk population.
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Affiliation(s)
- Mark D. Peterson
- Department of Physical Medicine and Rehabilitation
- Institute for Healthcare Policy and Innovation
| | - Paul Lin
- Institute for Healthcare Policy and Innovation
| | - Neil Kamdar
- Institute for Healthcare Policy and Innovation
- Department of Obstetrics and Gynecology
- Department of Emergency Medicine
- Department of Surgery
| | | | - Elham Mahmoudi
- Institute for Healthcare Policy and Innovation
- Department of Family Medicine, Michigan Medicine, University of Michigan, Ann Arbor
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Kassam F, Saeidiborojeni S, Finlayson H, Winston P, Reebye R. Canadian Physicians' Use of Perioperative Botulinum Toxin Injections to Spastic Limbs: A Cross-sectional National Survey. Arch Rehabil Res Clin Transl 2022; 3:100158. [PMID: 34977540 PMCID: PMC8683856 DOI: 10.1016/j.arrct.2021.100158] [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] [Indexed: 11/01/2022] Open
Abstract
Objective To investigate the practice patterns of Canadian physicians who use perioperative botulinum toxin (BoNT) injections to improve surgical outcomes on spastic limbs. Design A cross-sectional national survey composed of an invitation email and an 18-item questionnaire was disseminated by a national physical medicine and rehabilitation (PMR) society to 138 physician members involved in spasticity management. Setting Not applicable. Participants Twenty-five percent of the participants (N=34) fully completed the survey. Interventions Not applicable. Main Outcome Measures Participants completed an online questionnaire that examined the practice patterns and surgical outcomes associated with perioperative BoNT injections. Results The majority (n=21; 84%) of Canadian physicians who inject BoNT perioperatively to improve outcomes of surgeries performed on spastic limbs are specialists in PMR practicing in academic settings. Most respondents (74%) used BoNT injections for perioperative treatment for patients with limb spasticity undergoing surgery. Of those surveyed, 65% of physicians used BoNT preoperatively, 21% used BoNT intraoperatively, and 24% used BoNT postoperatively.Of the physicians who performed BoNT injections preoperatively, 6% performed BoNT injections 7 to 12 weeks preoperatively, 32% performed BoNT injections 4 to 6 weeks preoperatively, 47% performed BoNT injections 2 to 3 weeks preoperatively, and 15% performed BoNT injections 0 to 1 week preoperatively. The majority of physicians (85%) responded that injecting BoNT perioperatively may improve a patient's surgical outcome and all of the participants (100%) stated that BoNT did not contribute to any perioperative complications or adverse effects. Qualitative responses emphasized that successful outcomes from the perioperative BoNT were linked to enhanced collaboration with surgeons and that more research is needed to determine the optimal timing of perioperative BoNT. Conclusion Canadian physicians, mostly PMR specialists, administer perioperative BoNT to improve outcomes of surgeries performed on spastic limbs. The optimal timing for perioperative BoNT was suggested to be 2 to 3 weeks before the surgery by 47% of survey respondents. All participating physicians responded that perioperative BoNT did not contribute to any known perioperative complications or adverse events. This study highlights the importance of conducting more robust research to better understand optimal timing for perioperative BoNT injection, enhancing collaboration between physicians and surgeons, and increasing awareness of perioperative BoNT when planning for surgeries on spastic limbs.
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Affiliation(s)
- Farris Kassam
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress, Kingston, Ontario, Canada
| | - Sepehr Saeidiborojeni
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress, Kingston, Ontario, Canada
| | - Heather Finlayson
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress, Kingston, Ontario, Canada.,Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,GF Strong Rehabilitation Centre, Vancouver, British Columbia, Canada
| | - Paul Winston
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress, Kingston, Ontario, Canada.,Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rajiv Reebye
- Canadian Advances in Neuro-Orthopedics for Spasticity Congress, Kingston, Ontario, Canada.,Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,GF Strong Rehabilitation Centre, Vancouver, British Columbia, Canada
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Larsen JB, Reitan SK, Løberg EM, Rettenbacher M, Bruserud Ø, Larsen TK, Anda L, Bartz-Johannessen C, Johnsen E, Kroken RA. The association between cytokines and psychomotor speed in a spectrum of psychotic disorders: A longitudinal study. Brain Behav Immun Health 2021; 18:100392. [PMID: 34877553 PMCID: PMC8633579 DOI: 10.1016/j.bbih.2021.100392] [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: 10/20/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 12/17/2022] Open
Abstract
Background In schizophrenia, impaired psychomotor speed is a common symptom predicting worse functional outcome. Inflammation causes changes in white matter integrity, which may lead to reduced psychomotor speed. Therefore, we wanted to investigate if peripheral inflammation assessed with cytokines affected performance on psychomotor speed in patients with a spectrum of psychotic disorders. Methods The current study is a prospective cohort study, including participants from a pragmatic, randomised controlled trial comparing three atypical antipsychotics in patients with a spectrum of psychotic disorders. For the purposes of this sub-study, we analysed drug treatment groups collectively. Psychomotor speed was assessed at baseline, and at weeks 6, 12, 26 and 52 of follow-up, using the neuropsychological tests trail making test (TMT) A and B, and symbol coding. Serum concentration of the following cytokines were measured: interleukin (IL)-β, IL-2, IL-4, IL-6, IL-10, IL12 p70, IL-17a, interferon (IFN)-γ and tumor necrosis factor (TNF)-α. Blood samples were collected at baseline and after 1, 3, 6, 12, 26, 39 and 52 weeks. We analysed the effect of cytokines levels on psychomotor speed over time in linear mixed effects models. Results In our linear mixed effects models controlling for possible confounders, IFN-γ had a significant negative effect on TMT-A and symbol coding performance. None of the other tests for psychomotor speed were significantly associated with cytokines. Overall psychomotor speed performance increased significantly across the study period while cytokine levels remained stable. Conclusion Our study indicates a negative association between IFN-γ and psychomotor speed, which might be of importance when understanding the mechanisms behind psychomotor deviations in psychotic disorders. The cytokine interferon (IFN) – γ is related to psychomotor speed in patients with psychotic disorders. For majority of cytokines, we found no significant association with psychomotor speed. Cytokines remained stable during the study period of 52 weeks.
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Key Words
- BMI, body mass index
- Cognition
- Cytokines
- IL, interleukin
- Immune markers
- Inflammation
- MRI, magnetic resonance imaging
- MS, multiple sclerosis
- PANSS, Positive and Negative Syndrome Scale
- Psychomotor performance
- Psychomotor speed
- RCT, randomised controlled trial
- SCID-I, Structured Clinical Interview for DSM-IV Axis I Disorders
- Schizophrenia
- TMT, Trail Making Test
- TNF, tumor necrosis factor
- hs-CRP, high-sensitivity C-reactive protein
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Affiliation(s)
- Jeanette Brun Larsen
- Department of Mental Health, St. Olav's University Hospital, Trondheim, Norway.,Department of Mental Health, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Solveig Klæbo Reitan
- Department of Mental Health, St. Olav's University Hospital, Trondheim, Norway.,Department of Mental Health, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Else-Marie Løberg
- NORMENT, Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Psychology, University of Bergen, Bergen, Norway
| | - Maria Rettenbacher
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University Innsbruck, Innsbruck, Austria
| | - Øystein Bruserud
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Tor Ketil Larsen
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Regional Centre for Clinical Research in Psychosis, TIPS, Stavanger University Hospital, Bergen, Norway
| | - Liss Anda
- Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Social Studies, University of Stavanger, Stavanger, Norway
| | | | - Erik Johnsen
- NORMENT, Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Rune A Kroken
- NORMENT, Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
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Gurwitz JH, Carlozzi NE, Davison KK, Evenson KR, Gaskin DJ, Lushniak B. National Institutes of Health Pathways to Prevention Workshop: Physical Activity and Health for Wheelchair Users. Arch Rehabil Res Clin Transl 2021; 3:100163. [PMID: 34977545 PMCID: PMC8683862 DOI: 10.1016/j.arrct.2021.100163] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Health benefits of physical activity are well recognized in the general population for reducing the risk of chronic health conditions. Less is known about the effects of physical activity on people currently using or who may use wheeled mobility devices in the future, specifically individuals with multiple sclerosis, cerebral palsy, and spinal cord injury who are at increased likelihood for use of a wheeled mobility device. On December 1-3, 2020, the National Institutes of Health convened the Pathways to Prevention workshop: "Can Physical Activity Improve the Health of Wheelchair Users?" to consider the available scientific evidence on the clinical benefits and harms of physical activity for people currently using or who may use wheeled mobility devices in the future, with the aim of developing recommendations to fill gaps in the evidence base. A multidisciplinary team of content area experts developed the agenda and an evidence-based practice center prepared the evidence report. An independent panel, selected by the National Institutes of Health, attended the workshop; convened to develop recommendations on the basis of the systematic review, presentations, and public comments received during the workshop; and revised recommendations based on public comments received. This final report summarizes the panel's findings and identifies current gaps in knowledge. The panel made recommendations for new research efforts, including novel methods and new research infrastructure to improve the evidence base about the effects of physical activity on people currently using or who may use wheeled mobility devices in the future.
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Affiliation(s)
- Jerry H. Gurwitz
- Meyers Primary Care Institute, a joint endeavor of University of Massachusetts Medical School, Reliant Medical Group, and Fallon Health, Worcester, MA
| | - Noelle E. Carlozzi
- University of Michigan Department of Physical Medicine and Rehabilitation, Ann Arbor, MI
| | | | - Kelly R. Evenson
- University of North Carolina–Chapel Hill, Gillings School of Global Public Health, Department of Epidemiology, Chapel Hill, NC
| | | | - Boris Lushniak
- University of Maryland School of Public Health, College Park, MD
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10
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Laageide L, Verhave B, Samkoff L, Looney R, Beck L. Relapsing-remitting multiple sclerosis arising in a patient with atopic dermatitis on dupilumab. JAAD Case Rep 2021; 15:33-35. [PMID: 34401425 PMCID: PMC8349746 DOI: 10.1016/j.jdcr.2021.07.003] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Leah Laageide
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York
| | - Brendon Verhave
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York
| | - Lawrence Samkoff
- Department of Neurology, University of Rochester Medical Center, Rochester, New York
| | - Richard Looney
- Department of Medicine, University of Rochester Medical Center, Rochester, New York
| | - Lisa Beck
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York
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11
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Puce L, Currà A, Marinelli L, Mori L, Capello E, Di Giovanni R, Bodrero M, Solaro C, Cotellessa F, Fattapposta F, Trompetto C. Spasticity, spastic dystonia, and static stretch reflex in hypertonic muscles of patients with multiple sclerosis. Clin Neurophysiol Pract 2021; 6:194-202. [PMID: 34278056 DOI: 10.1016/j.cnp.2021.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 04/14/2021] [Accepted: 05/05/2021] [Indexed: 11/23/2022] Open
Abstract
Objective To investigate prevalence of EMG patterns underlying hypertonia in multiple sclerosis (MS) and whether these patterns indicate different levels of spinal excitability. Methods We investigated the EMG activity recorded from 108 hypertonic muscles of 59 consecutive MS patients. To investigate spastic dystonia (SD), we looked for the presence of EMG activity in muscles in a resting position. To investigate dynamic stretch reflex (DSR) and static stretch reflex (SSR), we looked for the presence of EMG activity in response to a manually performed passive stretch of the muscle. Results DSR was evoked in 104 muscles. In 51 muscles, DSR was the sole EMG activity. This pattern corresponds to the classical notion of spasticity, and was predominant in extensors. In contrast, SSR was detected in 48 muscles – predominantly in flexors. SD was observed in 28 muscles, showing even distribution in flexor and extensor muscles. Only in the flexors, SSR was associated with a larger DSR compared to spasticity. Conclusions These findings likely depend on the central effects of both flexor and extensor spindle afferents on the homonymous spinal motor neurons. Significance Improving our capacity to assess spinal excitability in MS patients.
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Abstract
OBJECTIVE To determine the safety and efficacy of orally delivered 4-aminopyridine (4-AP) in persons with Guillain-Barré Syndrome (GBS) >6 months from initial diagnosis. DESIGN A randomized, double-blind, placebo-controlled, crossover study. SETTING Tertiary care clinical outpatient program. PARTICIPANTS Nineteen participants enrolled (14 male, 5 female; N=19), neurologic impairment secondary to GBS and functional loss on the FIM motor score (stable for ≥12mo) and >3.0 but <5.0 on the American Spinal Injury motor scale. Twelve participants (mean age, 59y; range, 23-77y) completed the study. INTERVENTIONS A 4-AP dose-escalation study with 8 weeks in each period with a 3-week washout period, followed by 3 months open-label follow-up. MAIN OUTCOME MEASURES FIM motor score was the primary outcome measure; also evaluated were the American Spinal Injury motor strength score (all limbs), handheld dynamometer, 6-minute walk test, Medical Outcomes Study 12-Item Short Form, Center for Epidemiological Studies Depression scale, Positive and Negative Affect Schedule, pain, GBS disability scale, Jepsen-Taylor Hand Function Test, Minnesota Manual Dexterity Test and Minnesota Rate of Manipulation Test, Get Up and Go Test, McGill Pain Inventory, Craig Handicap Assessment and Reporting Technique, and participant self-evaluation. RESULTS Seven participants discontinued the study prematurely: 3 because of adverse events, 3 because of travel difficulties or relocation, and 1 because of pretreatment laboratory abnormalities. After removing 3 participants with maximum FIM scores, 4-AP arm trended superior to placebo (P=.065). Patients subjectively could always tell when they were on the active agent usually by tingling sensations or a sense of wellness. No statistically significant differences were found for other outcome measures although there were strong trends. CONCLUSIONS This study demonstrates the safety of 4-AP in the patient population with GBS as the predominate goal of the study. A trend toward improved function after treatment was noted with most patients electing to stay on the medication after the trial.
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Affiliation(s)
- Jay M. Meythaler
- Department of Physical Medicine and Rehabilitation-Oakwood, Wayne State University School of Medicine, Vestavia Hills, Alabama
| | - Robert C. Brunner
- Department of Physical Medicine and Rehabilitation, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Jean Peduzzi
- Department of Physical Medicine and Rehabilitation-Oakwood, Wayne State University School of Medicine, Vestavia Hills, Alabama
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Raza F, Kozitza C, Chybowski A, Goss KN, Berei T, Runo J, Eldridge M, Chesler N. Interferon-β-Induced Pulmonary Arterial Hypertension: Approach to Diagnosis and Clinical Monitoring. JACC Case Rep 2021; 3:1038-1043. [PMID: 34317680 PMCID: PMC8311374 DOI: 10.1016/j.jaccas.2021.02.005] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/01/2021] [Accepted: 02/05/2021] [Indexed: 11/23/2022]
Abstract
A 48-year-old woman who had been receiving long-term interferon-β for 8 years for multiple sclerosis developed drug-induced World Health Organization group I pulmonary arterial hypertension. Triple therapy for pulmonary arterial hypertension and suspension of interferon-β led to improvement from a high-risk to low-risk state and improvement in exercise hemodynamics, including vascular distensibility, and right ventricle–pulmonary artery coupling. (Level of Difficulty: Advanced.)
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Key Words
- 6MWD, 6-min walk distance
- BNP, B-type natriuretic peptide
- BP, blood pressure
- CMR, cardiac magnetic resonance
- CPET, cardiopulmonary exercise test
- Dlco, diffusion capacity of carbon monoxide
- ET, endothelin
- IFN, interferon
- MS, multiple sclerosis
- NYHA, New York Heart Association
- PA, pulmonary arterial
- PAH, pulmonary arterial hypertension
- RHC, right-sided heart catheterization
- RV, right ventricular
- exercise
- pulmonary hypertension
- right ventricle
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Affiliation(s)
- Farhan Raza
- Division of Cardiology, Department of Medicine, University of Wisconsin, Madison, Wisconsin, USA
- Address for correspondence: Dr. Farhan Raza, Division of Cardiology, University of Wisconsin-Madison, Hospitals and Clinics, 600 Highland Avenue, CSC-E5/582B, Madison, Wisconsin 53792, USA. @farhanraza1984
| | - Callyn Kozitza
- Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin, USA
| | - Amy Chybowski
- Division of Pulmonary and Critical Care, Department of Medicine and Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
| | - Kara N. Goss
- Division of Pulmonary and Critical Care, Department of Medicine and Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
| | - Theodore Berei
- Department of Pharmacy, University of Wisconsin, Madison, Wisconsin, USA
| | - James Runo
- Division of Pulmonary and Critical Care, Department of Medicine and Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
| | - Marlowe Eldridge
- Department of Pediatrics. University of Wisconsin, Madison, Wisconsin, USA
| | - Naomi Chesler
- Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin, USA
- Department of Pediatrics. University of Wisconsin, Madison, Wisconsin, USA
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Abstract
Objectives This study reports on the feasibility of the SitLess with MS trial, an intervention targeting sedentary behavior in individuals with multiple sclerosis (MS). Design Single group, pre-post intervention design. Setting Community. Participants Participants (N=41) with mild to moderate disability from MS. Intervention The intervention was 15 weeks, with a 7-week follow-up, and included 2 stages: SitLess and MoveMore. During the SitLess stage, participants were encouraged to break up prolonged sitting bouts over a 7-week period, whereas the MoveMore stage promoted increased steps per day and interrupting sitting over a 7-week period. The intervention was delivered through weekly one-on-one coaching sessions via telerehabilitation and an accompanying newsletter based on social-cognitive theory. Activity was monitored throughout the program using a Fitbit. Main Outcome Measures Process (eg, recruitment) and resource and management (eg, personnel requirements) metrics were assessed, along with efficacy outcomes (eg, effect). Progression criteria were set a priori and were related to safety, fatigue, satisfaction, and attrition. Sedentary behavior, measured using the ActivPal, was reported pre- and postintervention, as well as 7 weeks postintervention. Effect sizes (pre to post, pre to 7 weeks post) were calculated for the sedentary behavior outcomes (eg, time sitting, transitions from sitting to standing, number of long sitting bouts). Experiences with the intervention were explored through an online survey. Results Forty-one participants enrolled, 39 of whom completed the intervention. All participants but 1 were satisfied with the experience. Pre-post intervention effect sizes for change in total sedentary time, number of transitions from sit to stand, and number of long (>30 min) sedentary bouts were 0.34, 0.02, and 0.39 respectively. All a priori progression criteria were met. Conclusions The SitLess with MS program, a novel intervention that emphasized and facilitated sitting less and moving more, was feasible and resulted in small changes in sedentary behavior in individuals with MS.
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Affiliation(s)
- Patricia J Manns
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Golnoush Mehrabani
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Sarah Norton
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Saeideh Aminian
- Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Robert W Motl
- Department of Physical Therapy, University of Alabama at Birmingham, Urbana, AL
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Zhang L, Hu K, Shao T, Hou L, Zhang S, Ye W, Josephson L, Meyer JH, Zhang MR, Vasdev N, Wang J, Xu H, Wang L, Liang SH. Recent developments on PET radiotracers for TSPO and their applications in neuroimaging. Acta Pharm Sin B 2021; 11:373-393. [PMID: 33643818 PMCID: PMC7893127 DOI: 10.1016/j.apsb.2020.08.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/15/2020] [Accepted: 07/29/2020] [Indexed: 12/12/2022] Open
Abstract
The 18 kDa translocator protein (TSPO), previously known as the peripheral benzodiazepine receptor, is predominately localized to the outer mitochondrial membrane in steroidogenic cells. Brain TSPO expression is relatively low under physiological conditions, but is upregulated in response to glial cell activation. As the primary index of neuroinflammation, TSPO is implicated in the pathogenesis and progression of numerous neuropsychiatric disorders and neurodegenerative diseases, including Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), Parkinson's disease (PD), multiple sclerosis (MS), major depressive disorder (MDD) and obsessive compulsive disorder (OCD). In this context, numerous TSPO-targeted positron emission tomography (PET) tracers have been developed. Among them, several radioligands have advanced to clinical research studies. In this review, we will overview the recent development of TSPO PET tracers, focusing on the radioligand design, radioisotope labeling, pharmacokinetics, and PET imaging evaluation. Additionally, we will consider current limitations, as well as translational potential for future application of TSPO radiopharmaceuticals. This review aims to not only present the challenges in current TSPO PET imaging, but to also provide a new perspective on TSPO targeted PET tracer discovery efforts. Addressing these challenges will facilitate the translation of TSPO in clinical studies of neuroinflammation associated with central nervous system diseases.
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Key Words
- AD, Alzheimer's disease
- ALS, amyotrophic lateral sclerosis
- AMPA, α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid
- ANT, adenine nucleotide transporter
- Am, molar activities
- BBB, blood‒brain barrier
- BMSC, bone marrow stromal cells
- BP, binding potential
- BPND, non-displaceable binding potential
- BcTSPO, Bacillus cereus TSPO
- CBD, corticobasal degeneration
- CNS disorders
- CNS, central nervous system
- CRAC, cholesterol recognition amino acid consensus sequence
- DLB, Lewy body dementias
- EP, epilepsy
- FTD, frontotemporal dementia
- HAB, high-affinity binding
- HD, Huntington's disease
- HSE, herpes simplex encephalitis
- IMM, inner mitochondrial membrane
- KA, kainic acid
- LAB, low-affinity binding
- LPS, lipopolysaccharide
- MAB, mixed-affinity binding
- MAO-B, monoamine oxidase B
- MCI, mild cognitive impairment
- MDD, major depressive disorder
- MMSE, mini-mental state examination
- MRI, magnetic resonance imaging
- MS, multiple sclerosis
- MSA, multiple system atrophy
- Microglial activation
- NAA/Cr, N-acetylaspartate/creatine
- Neuroinflammation
- OCD, obsessive compulsive disorder
- OMM, outer mitochondrial membrane
- P2X7R, purinergic receptor P2X7
- PAP7, RIa-associated protein
- PBR, peripheral benzodiazepine receptor
- PCA, posterior cortical atrophy
- PD, Parkinson's disease
- PDD, PD dementia
- PET, positron emission tomography
- PKA, protein kinase A
- PRAX-1, PBR-associated protein 1
- PSP, progressive supranuclear palsy
- Positron emission tomography (PET)
- PpIX, protoporphyrin IX
- QA, quinolinic acid
- RCYs, radiochemical yields
- ROS, reactive oxygen species
- RRMS, relapsing remitting multiple sclerosis
- SA, specific activity
- SAH, subarachnoid hemorrhage
- SAR, structure–activity relationship
- SCIDY, spirocyclic iodonium ylide
- SNL, selective neuronal loss
- SNR, signal to noise ratio
- SUV, standard uptake volume
- SUVR, standard uptake volume ratio
- TBAH, tetrabutyl ammonium hydroxide
- TBI, traumatic brain injury
- TLE, temporal lobe epilepsy
- TSPO
- TSPO, translocator protein
- VDAC, voltage-dependent anion channel
- VT, distribution volume
- d.c. RCYs, decay-corrected radiochemical yields
- dMCAO, distal middle cerebral artery occlusion
- fP, plasma free fraction
- n.d.c. RCYs, non-decay-corrected radiochemical yields
- p.i., post-injection
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Frost G, Finlayson H, Saeidiborojeni S, Lagnau P, Reebye R. Perioperative Botulinum Toxin Injections to Enhance Surgical Outcomes in Patients With Spasticity: Preoperative, Intraoperative, and Postoperative Case Reports. Arch Rehabil Res Clin Transl 2021; 3:100101. [PMID: 33778474 PMCID: PMC7984973 DOI: 10.1016/j.arrct.2021.100101] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Spasticity causes an array of disabilities, which in turn may lead to the need for surgical intervention. Spasticity itself may also negatively affect surgical outcomes. This report reviews the potential benefit of perioperative (before, during, or after surgery) botulinum toxin (BoNT) injections for 3 patients with spasticity due to spinal cord injury, stroke, or multiple sclerosis. We discuss perioperative BoNT in 3 time periods: preoperatively, intraoperatively, and postoperatively. The cases demonstrate the use of perioperative BoNT in decreasing pain, improving wound healing, and improving surgical outcomes. We conclude by discussing the potential use of perioperative BoNT for surgical interventions in patients with spasticity and the need for further high-quality research in this field.
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Affiliation(s)
- Geoffrey Frost
- Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia
| | - Heather Finlayson
- Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia
- GF Strong Rehabilitation Centre, Vancouver, British Columbia
- Canadian Advances for Neuro-orthopedics for Spasticity Congress (CANOSC), Kingston, Ontario, Canada
| | - Sepehr Saeidiborojeni
- Canadian Advances for Neuro-orthopedics for Spasticity Congress (CANOSC), Kingston, Ontario, Canada
| | - Philippe Lagnau
- GF Strong Rehabilitation Centre, Vancouver, British Columbia
- Canadian Advances for Neuro-orthopedics for Spasticity Congress (CANOSC), Kingston, Ontario, Canada
| | - Rajiv Reebye
- Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia
- GF Strong Rehabilitation Centre, Vancouver, British Columbia
- Canadian Advances for Neuro-orthopedics for Spasticity Congress (CANOSC), Kingston, Ontario, Canada
- Corresponding author Rajiv Reebye, MD, FRCPC, GF Strong Rehabilitation Center, 4255 Laurel St, Vancouver, BC V5Z 2G9, Canada.
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Alzahrani A, Hanieh H. Differential modulation of Ahr and Arid5a: A promising therapeutic strategy for autoimmune encephalomyelitis. Saudi Pharm J 2020; 28:1605-15. [PMID: 33424253 DOI: 10.1016/j.jsps.2020.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/18/2020] [Indexed: 01/23/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease that involves demyelination of axons in the central nervous system (CNS) and affects patients worldwide. It has been demonstrated that ligand-activated aryl hydrocarbon receptor (Ahr) ameliorates experimental autoimmune encephalomyelitis (EAE), a murine model of MS, by increasing CD4+FoxP3+ T cells. Recent evidence indicates that AT-rich interactive domain-containing protein 5a (Arid5a) is required for EAE pathogenesis by stabilizing Il6 and OX40 mRNAs. However, the differential modulation of Ahr and Arid5a in autoimmunity as a therapeutic strategy is unexplored. Herein, an in silico, in vitro and in vivo approach identified Flavipin (3,4,5-trihydroxy-6-methylphthalaldehyde) as an Ahr agonist that induces the expression of Ahr downstream genes in mouse CD4+ T cells and CD11b+ macrophages. Interestingly, Flavipin inhibited the stabilizing function of Arid5a and its counteracting effects on Regnase-1 on the 3′ untranslated region (3′UTR) of target mRNAs. Furthermore, it inhibited the stabilizing function of Arid5a on Il23a 3′UTR, a newly identified target mRNA. In EAE, Flavipin ameliorated disease severity, with reduced CD4+IL-17+ T cells, IL-6 and TNF-α and increased CD4+FoxP3+ T cells. Moreover, EAE amelioration was concomitant with reduced CD4+OX40+ and CD4+CD45+ T cells in the CNS. RNA interference showed that the modulatory effects of Flavipin on pro- and anti-inflammatory mediators in CD4+ T cells and macrophages were Ahr- and/or Arid5a-dependent. In conclusion, our findings reveal differential modulation of Ahr and Arid5a as a new therapeutic strategy for MS.
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Key Words
- 3′UTR, 3′ untranslated region
- ActinD, actinomycin D
- Ahr
- Ahr, aryl hydrocarbon receptor
- Arid5a
- Arid5a, AT-rich interactive domain-containing protein 5a
- Arnt, Ahr nuclear translocator
- Autoimmunity
- CFA, complete Freund's adjuvant
- CNS, central nervous system
- EAE, experimental autoimmune encephalomyelitis
- Inflammation
- LPS, lipopolysaccharide
- MOG35-55, myelin oligodendrocyte glycoprotein
- MS, multiple sclerosis
- Multiple sclerosis
- PAS-A and PAS-B, Per-Arnt-Sim domain
- RBP, RNA-binding protein
- RIP, RNA immunoprecipitation
- SPF, specific pathogen-free
- Therapeutic
- miR, microRNA
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Zeng F, Li S, Yang G, Luo Y, Qi T, Liang Y, Yang T, Zhang L, Wang R, Zhu L, Li H, Xu X. Design, synthesis, molecular modeling, and biological evaluation of acrylamide derivatives as potent inhibitors of human dihydroorotate dehydrogenase for the treatment of rheumatoid arthritis. Acta Pharm Sin B 2020; 11:S2211-3835(20)30759-0. [PMID: 33078092 PMCID: PMC7558257 DOI: 10.1016/j.apsb.2020.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/17/2020] [Accepted: 09/28/2020] [Indexed: 01/15/2023] Open
Abstract
Human dihydroorotate dehydrogenase (DHODH) is a viable target for the development of therapeutics to treat cancer and immunological diseases, such as rheumatoid arthritis (RA), psoriasis and multiple sclerosis (MS). Herein, a series of acrylamide-based novel DHODH inhibitors as potential RA treatment agents were designed and synthesized. 2-Acrylamidobenzoic acid analog 11 was identified as the lead compound for structure-activity relationship (SAR) studies. The replacement of the phenyl group with naphthyl moieties improved inhibitory activity significantly to double-digit nanomolar range. Further structure optimization revealed that an acrylamide with small hydrophobic groups (Me, Cl or Br) at the 2-position was preferred. Moreover, adding a fluoro atom at the 5-position of the benzoic acid enhanced the potency. The optimization efforts led to potent compounds 42 and 53‒55 with IC50 values of 41, 44, 32, and 42 nmol/L, respectively. The most potent compound 54 also displayed favorable pharmacokinetic (PK) profiles and encouraging in vivo anti-arthritic effects in a dose-dependent manner.
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Key Words
- AML, acute myeloid leukemia
- Acrylamide derivatives
- BPO, benzoyl peroxide
- CIA, collagen-induced arthritis
- DCE, 1,2-dichloroethane
- DCM, dichloromethane
- DHODH
- DHODH inhibitors
- DHODH, dihydroorotate dehydrogenase
- DMAP, 4-dimethylaminopyridine
- DMARDs, disease-modifying antirheumatic drugs
- DMF, N,N-dimethylformamide
- DMSO, dimethyl sulfoxide
- De novo pyrimidine biosynthesis
- EA, ethyl acetate
- FMN, flavin mononucleotide
- HPLC, high performance liquid chromatography
- HRMS, high-resolution mass spectrometry
- IBD, inflammatory bowel disease
- LAH, lithium aluminium hydride
- LCMS, liquid chromatography mass spectrometry
- MS, multiple sclerosis
- MeOH, methanol
- NBS, N-bromosuccinimide
- NCS, N-chlorosuccinimide
- NSAIDs, non-steroidal anti-inflammatory drugs
- PDA, photodiode array detector
- PE, petroleum ether
- PK, pharmacokinetic
- PhMe, toluene
- RA, rheumatoid arthritis
- Rheumatoid arthritis
- SEL, systemic lupus erythematosus
- TEA, triethylamine
- TFA, trifluoroacetic acid
- THF, tetrahydrofuran
- TsCl, tosyl chloride
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Affiliation(s)
- Fanxun Zeng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Shiliang Li
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Guantian Yang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Yating Luo
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Tiantian Qi
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Yingfan Liang
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Tingyuan Yang
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Letian Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Rui Wang
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Lili Zhu
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Honglin Li
- Shanghai Key Laboratory of New Drug Design, State Key Laboratory of Bioreactor Engineering, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
| | - Xiaoyong Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science & Technology, Shanghai 200237, China
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McSweeney L, Breckons M, Fattakhova G, Oluboyede Y, Vale L, Ternent L, Balp MM, Doward L, Brass CA, Beyer F, Sanyal A, Anstee QM. Health-related quality of life and patient-reported outcome measures in NASH-related cirrhosis. JHEP Rep 2020; 2:100099. [PMID: 32435754 PMCID: PMC7229498 DOI: 10.1016/j.jhepr.2020.100099] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/04/2020] [Accepted: 02/22/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND & AIMS Non-alcoholic steatohepatitis (NASH) is known to have a negative impact on patients' health-related quality of life (HRQoL), even before progression to cirrhosis has occurred. The burden of NASH-related cirrhosis from the patient perspective remains poorly understood. Herein, we aimed to identify the burden of disease and HRQoL impairment among patients with NASH-related compensated cirrhosis. METHODS This targeted literature review sought first to identify the humanistic burden of disease from the perspective of patients with diagnosed NASH-cirrhosis and, secondly, to identify generic or disease-specific patient-reported outcome measures (PROMs) used to assess the impact of NASH-cirrhosis. Searches were conducted in bibliographical databases, grey or unpublished literature, liver disease websites, support group websites and online blogs. A quality assessment of specific PROMs was conducted. RESULTS Patients with NASH-cirrhosis are reported to suffer from lower HRQoL than patients with non-cirrhotic NASH and the general population with respect to physical health/functioning, emotional health and worry, and mental health. Thirteen PROMs were identified, of which 4 were liver-disease specific: CLDQ, CLDQ-NAFLD, LDQoL and LDSI. The most commonly used measures do not comply with current industry or regulatory standards for PROMs and/or are not validated for use in a cirrhotic NASH population. CONCLUSIONS Patients with NASH-cirrhosis have lower HRQoL and poorer physical health than patients with non-cirrhotic NASH. However, the literature lacked detail of the everyday impact on patients' lives. Currently, a number of PROMs are available to measure the impact of the disease in patients with chronic liver conditions. The lack of studies that include qualitative insights in this population mandates further exploration and research. LAY SUMMARY It is not well understood how having non-alcoholic fatty liver disease (NAFLD)-related cirrhosis affects a person's everyday wellbeing and quality of life. Some research has been done with patients who have early stages of liver disease but not people with cirrhosis. We found that patients with NAFLD-related cirrhosis tended to have poorer health than patients without cirrhosis. But there was not very much information from patients themselves and there were no tools or questionnaires just for this group of patients.
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Key Words
- CLDQ, chronic liver disease questionnaire
- COSMIN, The COnsensus-based Standards for the selection of health Measurement INstruments
- Cirrhosis
- EMA, European Medicines Agency
- FDA, United States Food and Drug Administration
- FIS, fatigue impact scale
- HRQoL, health-related quality of life
- LDQoL, liver disease quality of life questionnaire
- LDSI, liver disease symptom index
- MS, multiple sclerosis
- NAFL, non-alcoholic fatty liver
- NAFLD
- NAFLD, non-alcoholic fatty liver disease
- NASH, non-alcoholic steatohepatitis
- Non-alcoholic steatohepatitis
- PHAQ, patient-reported outcome measurement information system health assessment questionnaire
- PRO, patient-reported outcome
- PROM, patient-reported outcome measure
- QoL, quality of life
- RI, researcher interpretation
- SF-36, short form health profile 36
- health-related quality of life
- liver
- patient-reported outcome measures
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Affiliation(s)
- Lorraine McSweeney
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Matthew Breckons
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Gulnar Fattakhova
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Yemi Oluboyede
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Luke Vale
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Laura Ternent
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | | | - Lynda Doward
- RTI-Health Solutions, The Pavilion, Towers Business Park, Wilmslow Road, Didsbury, Manchester, UK
| | | | - Fiona Beyer
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Arun Sanyal
- Division of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, United States
| | - Quentin M. Anstee
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK & Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Trust, Newcastle upon Tyne, UK
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Deng H, Li W. Monoacylglycerol lipase inhibitors: modulators for lipid metabolism in cancer malignancy, neurological and metabolic disorders. Acta Pharm Sin B 2020; 10:582-602. [PMID: 32322464 PMCID: PMC7161712 DOI: 10.1016/j.apsb.2019.10.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [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: 05/07/2019] [Revised: 08/16/2019] [Accepted: 09/26/2019] [Indexed: 02/05/2023] Open
Abstract
Monoacylglycerol lipase (MAGL) is a serine hydrolase that plays a crucial role catalysing the hydrolysis of monoglycerides into glycerol and fatty acids. It links the endocannabinoid and eicosanoid systems together by degradation of the abundant endocannabinoid 2-arachidaoylglycerol into arachidonic acid, the precursor of prostaglandins and other inflammatory mediators. MAGL inhibitors have been considered as important agents in many therapeutic fields, including anti-nociceptive, anxiolytic, anti-inflammatory, and even anti-cancer. Currently, ABX-1431, a first-in-class inhibitor of MAGL, is entering clinical phase 2 studies for neurological disorders and other diseases. This review summarizes the diverse (patho)physiological roles of MAGL and will provide an overview on the development of MAGL inhibitors. Although a large number of MAGL inhibitors have been reported, novel inhibitors are still required, particularly reversible ones.
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Key Words
- 2-AG, 2-arachidonoyl glycerol
- 2-Arachidaoylglycerol
- 2-OG, 2-oleoylglycerol
- 4-NPA, 4-nitrophenylacetate
- 7-HCA, 7-hydroxycoumarinyl arachidonate
- AA, arachidonic acid
- ABHD6 and ABHD12, α/β-hydrolase 6 and 12
- ABP, activity-based probes
- ABPP, activity-based protein profiling
- AD, Alzheimer's disease
- AEA, anandamide
- Arachidonic acid
- BCRP, breast cancer resistant protein
- CB1R and CB2R, cannabinoid receptors
- CC-ABPP, click chemistry activity-based protein profiling
- CFA, complete Freund's adjuvant
- CNS, central nervous system
- COX, cyclooxygenases
- CYP, cytochrome P450 proteins
- Cancer
- DAG, diacylglycerol
- DAGLs, diacylglycerol lipases
- DTT, dithiothreitol
- Drug discovery
- EAE, encephalomyelitis
- EI, enzyme–inhibitor complex
- FAAH, amide hydrolase
- FFAs, free fatty acids
- FP, fluorophosphonate
- FP-Rh, fluorophosphonate-rhodamine
- FQ, fit quality
- HFD, high-fat diet
- HFIP, hexafluoroisopropyl
- LC–MS, liquid chromatographic mass spectrometry
- LFD, low-fat diet
- MAGL, monoacylglycerol lipase
- MAGs, monoglycerides
- MS, multiple sclerosis
- Metabolic syndrome
- Monoacylglycerol lipases
- NAM, N-arachidonoyl maleimide
- NHS, N-hydroxysuccinimidyl
- Neuroinflammation
- OCT2, organic cation transporter 2
- P-gp, P-glycoprotein
- PA, phosphatidic acid
- PD, Parkinson's disease
- PET, positron emission tomography
- PGE2, prostaglandin
- PGs, prostaglandins
- PK, pharmacokinetic
- PLA2G7, phospholipase A2 group VII
- SAR, structure–activity relationship
- SBDD, structure-based drug design
- SDS-PAGE, sodium dodecyl sulphate polyacrylamide gel electrophoresis
- THL, tetrahydrolipstatin
- cPLA2, cytosolic phospholipase A2
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Affiliation(s)
- Hui Deng
- Corresponding authors. Tel./fax: +86 28 85422197.
| | - Weimin Li
- Corresponding authors. Tel./fax: +86 28 85422197.
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21
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Williams J, Moldavskiy M, Bauer K, Reed G, Theuring A, Zedrow J, Sweatman WM, Backus D. Safety and Feasibility of Various Functional Electrical Stimulation Cycling Protocols in Individuals With Multiple Sclerosis Who Are Nonambulatory. Arch Rehabil Res Clin Transl 2020; 2:100045. [PMID: 33543074 PMCID: PMC7853402 DOI: 10.1016/j.arrct.2020.100045] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objective To examine the safety, feasibility, and response to functional electrical stimulation (FES) cycling protocols requiring differing levels of effort in people with multiple sclerosis (MS) who are nonambulatory. Design Pilot study with pre-post intervention testing. Setting Outpatient clinic setting of a long-term acute care hospital. Participants Individuals (N=10) with MS (6 men; mean age 58.6±9.86y) who use a wheelchair for community mobility. Participants’ Expanded Disability Status Scale score ranged from 6.5 to 8.5 (median 7.5). Intervention Participants performed 3 or 4 FES cycling protocols requiring different levels of volitional effort during 6-8 testing sessions. Main Outcome Measures The primary outcome was safety, measured by adverse events and increase in MS symptoms, all assessed throughout, immediately post- and 1 day postsession. FES cycling performance for each protocol was also recorded. Exploratory outcome measures collected before and after all testing sessions included functional assessment of MS, MS Impact Scale, Exercise Self Efficacy Scale, Patient Health Questionnaire-9 item, and the Zarit Caregiver Burden Scale. Results All participants (4 women, 6 men) completed all testing sessions. There were no serious adverse events or differences in vitals or symptoms between protocols. Two participants had an isolated episode of mild hypotension. Changes in pain, spasticity, and fatigue were minimal. Five participants were able to cycle for 30 minutes and completed interval training protocols requiring increasing difficulty. The remainder cycled for <3 minutes and completed a rest interval protocol. There was modest improvement on the exploratory outcome measures. Conclusions People with MS who use a wheelchair for community mobility can safely perform FES cycling requiring more effort than previously reported research. Therefore, the individuals may experience greater benefits than previously reported. Further study is required to better understand the potential benefits for optimizing function and improving health in people with MS. People with multiple sclerosis who are nonambulatory can safely perform functional electrical stimulation (FES) cycling using parameters requiring more effort. FES cycling may offer an opportunity for increased exercise stimulus or neuromuscular training if individuals are adequately challenged using an appropriate cycling protocol.
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Key Words
- ADLs, activities of daily living
- EDSS, Expanded Disability Status Scale
- ESES, Exercise Self-Efficacy Scale
- Exercise
- FAMS, functional assessment of multiple sclerosis
- FES, functional electrical stimulation
- Health
- I-Resist, resistance interval
- I-Rest, rest interval
- I-Stim, stimulation interval
- MA, motor assist
- MS, multiple sclerosis
- MSIS-29, 29-Item Multiple Sclerosis Impact Scale
- Multiple sclerosis
- PHQ-9, 9-Item Patient Health Questionnaire
- QOL, quality of life
- Rehabilitation
- S, standard protocol
- VAS-P, visual analog scale of pain
- VAS-S, visual analog scale of spasticity
- rpm, revolutions per minute
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Affiliation(s)
- Joy Williams
- Multiple Sclerosis Rehabilitation and Wellness Program, Crawford Research Institute Shepherd Center, Atlanta, GA
| | - Marina Moldavskiy
- Multiple Sclerosis Rehabilitation and Wellness Program, Crawford Research Institute Shepherd Center, Atlanta, GA.,Crawford Research Institute, Shepherd Center, Atlanta, GA
| | - Katie Bauer
- Emory University, Division of Physical Therapy, Atlanta, GA
| | - Grace Reed
- Emory University, Division of Physical Therapy, Atlanta, GA
| | | | - Jayme Zedrow
- Emory University, Division of Physical Therapy, Atlanta, GA
| | | | - Deborah Backus
- Multiple Sclerosis Rehabilitation and Wellness Program, Crawford Research Institute Shepherd Center, Atlanta, GA.,Crawford Research Institute, Shepherd Center, Atlanta, GA
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Tan-Garcia A, Lai F, Sheng Yeong JP, Irac SE, Ng PY, Msallam R, Tatt Lim JC, Wai LE, Tham CYL, Choo SP, Lim T, Young DY, D'Ambrosio R, Degasperi E, Perbellini R, Newell E, Le Bert N, Ginhoux F, Bertoletti A, Chen Q, Dutertre CA. Liver fibrosis and CD206 + macrophage accumulation are suppressed by anti-GM-CSF therapy. JHEP Rep 2020; 2:100062. [PMID: 32039403 DOI: 10.1016/j.jhepr.2019.11.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 02/06/2023] Open
Abstract
Background & Aims Chronic liver inflammation leads to fibrosis and cirrhosis and is associated with an accumulation of intrahepatic TNFα-secreting CD206+ macrophages, which may participate in maintaining chronic liver disease in a GM-CSF-dependent manner. We aimed to elucidate the exact role of GM-CSF in the development and progression of chronic liver disease. Methods Liver immunohistochemistry and serum quantification were performed in patients with viral and non-viral-related liver disease to compare CD206+ monocyte/macrophages, fibrosis and GM-CSF. This was followed by functional validations in vitro and in vivo in humanised mice. Results Using multiplex immunofluorescence and histo-cytometry, we show that highly fibrotic livers had a greater density of CD206+ macrophages that produced more TNFα and GM-CSF in the non-tumour liver regions of patients with hepatocellular carcinoma (n = 47), independent of aetiology. In addition, the absolute number of CD206+ macrophages strongly correlated with the absolute number of GM-CSF-producing macrophages. In non-HCC chronic HCV+ patients (n = 40), circulating GM-CSF levels were also increased in proportion to the degree of liver fibrosis and serum viral titres. We then demonstrated in vitro that monocytes converted to TNFα-producing CD206+ macrophage-like cells in response to bacterial products (lipopolysaccharide) in a GM-CSF-dependent manner, confirming the in vivo normalisation of serum GM-CSF concentration following oral antibiotic treatment observed in HBV-infected humanised mice. Finally, anti-GM-CSF neutralising antibody treatment reduced intrahepatic CD206+ macrophage accumulation and abolished liver fibrosis in HBV-infected humanised mice. Conclusions While the direct involvement of CD206+ macrophages in liver fibrosis remains to be demonstrated, these findings show that GM-CSF may play a central role in liver fibrosis and could guide the development of anti-GM-CSF antibody-based therapy for the management of patients with chronic liver disease. Lay summary Liver fibrosis is a major driver of liver disease progression. Herein, we have shown that granulocyte-macrophage colony-stimulating factor (GM-CSF) plays an important role in the development of liver fibrosis. Our findings support the use of anti-GM-CSF neutralising antibodies for the management of patients with chronic liver disease resulting from both viral and non-viral causes. GM-CSF and TNFα producing CD206+ macrophages accumulate in human fibrotic liver Serum GM-CSF is increased in HCV+ patients with higher liver fibrosis GM-CSF drives monocyte to CD206+ macrophage conversion Anti-GM-CSF therapy suppresses liver fibrosis and CD206+ macrophage accumulation
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Key Words
- ALT, alanine aminotransferase
- BAMBI, BMP and Activin Membrane-bound Inhibitor
- CD206+ macrophages
- DAA, direct-acting antiviral
- DC, dendritic cell
- FFPE, formalin-fixed paraffin-embedded
- GM-CSF
- GM-CSF, granulocyte-macrophage colony-stimulating factor
- HCC, hepatocellular carcinoma
- HCV
- HIER, heat-induced epitope retrieval
- HSC, hepatic stellate cells
- ICS, intracellular cytokine staining
- Intrahepatic macrophages
- LPS, lipopolysaccharide
- LSM, liver stiffness measurement
- MS, multiple sclerosis
- NASH
- NASH, non-alcoholic steatohepatitis
- PBMCs, peripheral blood mononuclear cells
- RA, rheumatoid arthritis
- SVR, sustained virological response
- TCR, T cell receptor
- TMA, tissue microarray
- TNFα, tumour necrosis factor-α
- TSA, tyramide signal amplification
- anti-GM-CSF neutralizing antibody
- fibrosis
- moMΦs, monocyte-derived macrophage-like cells
- t-SNE, t-distributed stochastic neighbour embedding
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Song W, Li D, Tao L, Luo Q, Chen L. Solute carrier transporters: the metabolic gatekeepers of immune cells. Acta Pharm Sin B 2020; 10:61-78. [PMID: 31993307 DOI: 10.1016/j.apsb.2019.12.006] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/29/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023] Open
Abstract
Solute carrier (SLC) transporters meditate many essential physiological functions, including nutrient uptake, ion influx/efflux, and waste disposal. In its protective role against tumors and infections, the mammalian immune system coordinates complex signals to support the proliferation, differentiation, and effector function of individual cell subsets. Recent research in this area has yielded surprising findings on the roles of solute carrier transporters, which were discovered to regulate lymphocyte signaling and control their differentiation, function, and fate by modulating diverse metabolic pathways and balanced levels of different metabolites. In this review, we present current information mainly on glucose transporters, amino-acid transporters, and metal ion transporters, which are critically important for mediating immune cell homeostasis in many different pathological conditions.
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Key Words
- 3-PG, 3-phosphoglyceric acid
- ABC, ATP-binding cassette
- AIF, apoptosis-inducing factor
- AP-1, activator protein 1
- ASCT2, alanine serine and cysteine transporter system 2
- ATP, adenosine triphosphate
- BCR, B cell receptor
- BMDMs, bone marrow-derived macrophages
- CD45R, a receptor-type protein tyrosine phosphatase
- CTL, cytotoxic T lymphocytes
- DC, dendritic cells
- EAATs, excitatory amino acid transporters
- ER, endoplasmic reticulum
- ERRα, estrogen related receptor alpha
- FFA, free fatty acids
- G-6-P, glucose 6-phosphate
- GLUT, glucose transporters
- GSH, glutathione
- Glucose
- Glutamine
- HIF-1α, hypoxia-inducible factor 1-alpha
- HIV-1, human immunodeficiency virus type 1
- Hk1, hexokinase-1
- IFNβ, interferon beta
- IFNγ, interferon gamma
- IKK, IκB kinase
- IKKβ, IκB kinase beta subunit
- IL, interleukin
- LDHA, lactate dehydrogenase A
- LPS, lipopolysaccharide
- Lymphocytes
- Lyn, tyrosine-protein kinase
- MAPK, mitogen-activated protein kinase
- MCT, monocarboxylate transporters
- MS, multiple sclerosis
- Metal ion
- NADPH, nicotinamide adenine dinucleotide phosphate
- NF-κB, nuclear factor kappa-light-chain-enhancer of activated B cells
- NO, nitric oxide
- NOD2, nucleotide-binding oligomerization domain containing 2
- PEG2, prostaglandin E2
- PI-3K/AKT, phosphatidylinositol-3-OH kinase/serine–threonine kinase
- PPP, pentose phosphate pathway
- Pfk, phosphofructokinase
- RA, rheumatoid arthritis
- RLR, RIG-I-like receptor
- ROS, reactive oxygen species
- SLC, solute carrier
- SLE, systemic lupus erythematosus
- SNAT, sodium-coupled neutral amino acid transporters
- STAT, signal transducers and activators of transcription
- Solute carrier
- TAMs, tumor-associated macrophages
- TCA, tricarboxylic acid
- TCR, T cell receptor
- TLR, toll-like receptor
- TNF, tumor necrosis factor
- TRPM7, transient receptor potential cation channel subfamily M member 7
- Teffs, effector T cells
- Th1/2/17, type 1/2/17 helper T cells
- Tregs, regulatory T cells
- VEGF, vascular endothelial growth factor
- ZIP, zrt/irt-like proteins
- iNOS, inducible nitric oxide synthase
- iTregs, induced regulatory T cells
- mTORC1, mammalian target of rapamycin complex 1
- α-KG, α-ketoglutaric acid
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Silveira SL, Motl RW. Environmental correlates of health-promoting leisure physical activity in persons with multiple sclerosis using a social cognitive perspective embedded within social ecological model. Prev Med Rep 2019; 15:100921. [PMID: 31304080 PMCID: PMC6603437 DOI: 10.1016/j.pmedr.2019.100921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 06/06/2019] [Accepted: 06/15/2019] [Indexed: 11/12/2022] Open
Abstract
There is abundant evidence for the benefits of physical activity (PA) among persons with multiple sclerosis, however only 20% of persons with MS engage in sufficient PA. This cross-sectional study examined features of the built environment, social environment, and individual as hierarchical correlates of PA in persons with MS from a social-cognitive theory (SCT) perspective embedded within a social-ecological model (SEM). Five hundred eighty eight persons with MS completed an online survey between September 2018-January 2019 including: demographics, Patient Determined Disease Steps (PDDS), abbreviated Neighborhood Walkability Scale (NEWS-A), Social Provisions Scale (SPS), Exercise Self-Efficacy Scale (EXSE), and Godin Leisure-Time Exercise Questionnaire (GLTEQ). Correlation analyses were used to examine associations among NEWS-A subscales, SPS, EXSE, PDDS, Employment, Education and GLTEQ. We then conducted hierarchical, linear regression analysis whereby we regressed GLTEQ with PDDS, Education, and Employment (Step 1), NEWS-A subscales (Step 2), SPS (Step 3), and EXSE (Step 4) based on a SEM. Land-use mix diversity, land-use mix access, aesthetics, crime, SPS, EXSE, and PDDS correlated with GLTEQ. PDDS was a significant correlate of GLTEQ in Step 1 (β = -0.37;R2 = 0.15). Aesthetics (β = 0.08) and PDDS (β = -0.33) were significant correlates of GLTEQ in Step 2 (R2 = 0.18). SPS (β = 0.23) and PDDS (β = -0.30) were significant correlates of GLTEQ in Step 3 (R2 = 0.23). The final model in Step 4 identified PDDS (β = -0.11), aesthetics (β = 0.07), SPS (β = 0.09), and EXSE (β = 0.54) as correlates of GLTEQ (R2 = 0.43). Such results may inform the design of multi-level interventions that target environmental and individual correlates of PA consistent with the SEM framework and guided by SCT.
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Affiliation(s)
- Stephanie L. Silveira
- Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, USA
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25
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Kuchling J, Backner Y, Oertel FC, Raz N, Bellmann-Strobl J, Ruprecht K, Paul F, Levin N, Brandt AU, Scheel M. Comparison of probabilistic tractography and tract-based spatial statistics for assessing optic radiation damage in patients with autoimmune inflammatory disorders of the central nervous system. Neuroimage Clin 2018; 19:538-550. [PMID: 29984162 PMCID: PMC6029567 DOI: 10.1016/j.nicl.2018.05.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/03/2018] [Accepted: 05/06/2018] [Indexed: 10/28/2022]
Abstract
Background Diffusion Tensor Imaging (DTI) can evaluate microstructural tissue damage in the optic radiation (OR) of patients with clinically isolated syndrome (CIS), early relapsing-remitting multiple sclerosis and neuromyelitis optica spectrum disorders (NMOSD). Different post-processing techniques, e.g. tract-based spatial statistics (TBSS) and probabilistic tractography, exist to quantify this damage. Objective To evaluate the capacity of TBSS-based atlas region-of-interest (ROI) combination with 1) posterior thalamic radiation ROIs from the Johns Hopkins University atlas (JHU-TBSS), 2) Juelich Probabilistic ROIs (JUEL-TBSS) and tractography methods using 3) ConTrack (CON-PROB) and 4) constrained spherical deconvolution tractography (CSD-PROB) to detect OR damage in patients with a) NMOSD with prior ON (NMOSD-ON), b) CIS and early RRMS patients with ON (CIS/RRMS-ON) and c) CIS and early RRMS patients without prior ON (CIS/RRMS-NON) against healthy controls (HCs). Methods Twenty-three NMOSD-ON, 18 CIS/RRMS-ON, 21 CIS/RRMS-NON, and 26 HCs underwent 3 T MRI. DTI data analysis was carried out using JUEL-TBSS, JHU-TBSS, CON-PROB and CSD-PROB. Optical coherence tomography (OCT) and visual acuity testing was performed in the majority of patients and HCs. Results Absolute OR fractional anisotropy (FA) values differed between all methods but showed good correlation and agreement in Bland-Altman analysis. OR FA values between NMOSD and HC differed throughout the methodologies (p-values ranging from p < 0.0001 to 0.0043). ROC-analysis and effect size estimation revealed higher AUCs and R2 for CSD-PROB (AUC = 0.812; R2 = 0.282) and JHU-TBSS (AUC = 0.756; R2 = 0.262), compared to CON-PROB (AUC = 0.742; R2 = 0.179) and JUEL-TBSS (AUC = 0.719; R2 = 0.161). Differences between CIS/RRMS-NON and HC were only observable in CSD-PROB (AUC = 0.796; R2 = 0.094). No significant differences between CIS/RRMS-ON and HC were detected by any of the methods. Conclusions All DTI post-processing techniques facilitated the detection of OR damage in patient groups with severe microstructural OR degradation. The comparison of distinct disease groups by use of different methods may lead to different - either false-positive or false-negative - results. Since different DTI post-processing approaches seem to provide complementary information on OR damage, application of distinct methods may depend on the relevant research question.
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Key Words
- AD, axial diffusivity
- AUC, area under the curve
- CIS, clinically isolated syndrome
- CON, Contrack
- CSD, constrained spherical deconvolution
- DTI
- DTI, diffusion tensor imaging
- DW-MRI, diffusion weighted magnetic resonance imaging
- DWI, diffusion weighted imaging
- FA, fractional anisotropy
- FOD, fiber orientation distribution
- HC, Healthy Control
- JHU, Johns Hopkins University DTI white matter atlas
- JUEL, Juelich histological atlas
- LGN, lateral geniculate nucleus
- MD, mean diffusivity
- MS, multiple sclerosis
- Multiple sclerosis
- NMOSD, neuromyelitis optica spectrum disorder
- Neuromyelitis optica
- OCT, optical coherence tomography
- ON, optic neuritis
- OR, optic radiation
- Optic radiation
- PROB, probabilistic tractography
- Probabilistic tractography
- RD, radial diffusivity
- RNFL, retinal nerve fiber layer thickness
- ROC, receiver operating characteristic
- ROI, region of interest
- RRMS, relapsing-remitting multiple sclerosis
- SD, standard deviation
- SEM, standard error of the mean
- TBSS
- TBSS, tract-based spatial statistics
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Affiliation(s)
- Joseph Kuchling
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, NeuroCure Clinical Research Center, NCRC Charité, Charitéplatz 1, 10117 Berlin, Germany; Department of Neurology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Yael Backner
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah-Hebrew-University Medical Center, Kiryat Hadassah Ein kerem, Jerusalem 91120, Israel.
| | - Frederike C Oertel
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, NeuroCure Clinical Research Center, NCRC Charité, Charitéplatz 1, 10117 Berlin, Germany.
| | - Noa Raz
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah-Hebrew-University Medical Center, Kiryat Hadassah Ein kerem, Jerusalem 91120, Israel.
| | - Judith Bellmann-Strobl
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, NeuroCure Clinical Research Center, NCRC Charité, Charitéplatz 1, 10117 Berlin, Germany; Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Klemens Ruprecht
- Department of Neurology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Friedemann Paul
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, NeuroCure Clinical Research Center, NCRC Charité, Charitéplatz 1, 10117 Berlin, Germany; Department of Neurology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Netta Levin
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah-Hebrew-University Medical Center, Kiryat Hadassah Ein kerem, Jerusalem 91120, Israel.
| | - Alexander U Brandt
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, NeuroCure Clinical Research Center, NCRC Charité, Charitéplatz 1, 10117 Berlin, Germany; Department of Neurology, University of California, 1001 Health Sciences Road, Irvine Hall, Irvine, CA 92697, USA.
| | - Michael Scheel
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Neurocure Cluster of Excellence, NeuroCure Clinical Research Center, NCRC Charité, Charitéplatz 1, 10117 Berlin, Germany.
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Amiri H, de Sitter A, Bendfeldt K, Battaglini M, Gandini Wheeler-Kingshott CAM, Calabrese M, Geurts JJG, Rocca MA, Sastre-Garriga J, Enzinger C, de Stefano N, Filippi M, Rovira Á, Barkhof F, Vrenken H. Urgent challenges in quantification and interpretation of brain grey matter atrophy in individual MS patients using MRI. Neuroimage Clin 2018; 19:466-475. [PMID: 29984155 PMCID: PMC6030805 DOI: 10.1016/j.nicl.2018.04.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 03/28/2018] [Accepted: 04/22/2018] [Indexed: 01/18/2023]
Abstract
Atrophy of the brain grey matter (GM) is an accepted and important feature of multiple sclerosis (MS). However, its accurate measurement is hampered by various technical, pathological and physiological factors. As a consequence, it is challenging to investigate the role of GM atrophy in the disease process as well as the effect of treatments that aim to reduce neurodegeneration. In this paper we discuss the most important challenges currently hampering the measurement and interpretation of GM atrophy in MS. The focus is on measurements that are obtained in individual patients rather than on group analysis methods, because of their importance in clinical trials and ultimately in clinical care. We discuss the sources and possible solutions of the current challenges, and provide recommendations to achieve reliable measurement and interpretation of brain GM atrophy in MS.
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Key Words
- BET, brain extraction tool
- Brain atrophy
- CNS, central nervous system
- CTh, cortical thickness
- DGM, deep grey matter
- DTI, diffusion tensor imaging
- FA, fractional anisotropy
- GM, grey matter
- Grey matter
- MRI, magnetic resonance imaging
- MS, multiple sclerosis
- Magnetic resonance imaging
- Multiple sclerosis
- TE, echo time
- TI, inversion time
- TR, repetition time
- VBM, voxel-based morphometry
- WM, white matter
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Affiliation(s)
- Houshang Amiri
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - Alexandra de Sitter
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands.
| | | | - Marco Battaglini
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | | | - Massimiliano Calabrese
- Multiple Sclerosis Centre, Neurology Section, Department of Neurosciences, Biomedicine and Movements, University of Verona, Italy
| | - Jeroen J G Geurts
- Anatomy & Neurosciences, VU University Medical Center, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Maria A Rocca
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Jaume Sastre-Garriga
- Servei de Neurologia/Neuroimmunologia, Multiple Sclerosis Centre of Catalonia (Cemcat), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Christian Enzinger
- Department of Neurology & Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Austria
| | - Nicola de Stefano
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Álex Rovira
- Unitat de Ressonància Magnètica (Servei de Radiologia), Hospital universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands; Institutes of Neurology and Healthcare Engineering, UCL, London, UK
| | - Hugo Vrenken
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands
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Shu N, Duan Y, Huang J, Ren Z, Liu Z, Dong H, Barkhof F, Li K, Liu Y. Progressive brain rich-club network disruption from clinically isolated syndrome towards multiple sclerosis. Neuroimage Clin 2018; 19:232-239. [PMID: 30035017 PMCID: PMC6051763 DOI: 10.1016/j.nicl.2018.03.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/14/2018] [Accepted: 03/26/2018] [Indexed: 12/19/2022]
Abstract
Objective To investigate the rich-club organization in clinically isolated syndrome (CIS) and multiple sclerosis (MS), and to characterize its relationships with physical disabilities and cognitive impairments. Methods We constructed high-resolution white matter (WM) structural networks in 41 CIS, 32 MS and 35 healthy controls (HCs) using diffusion MRI and deterministic tractography. Group differences in rich-club organization, global and local network metrics were investigated. The relationship between the altered network metrics, brain lesions and clinical variables including EDSS, MMSE, PASAT, disease duration were calculated. Additionally, reproducibility analysis was performed using different parcellation schemes. Results Compared with HCs, MS patients exhibited a decreased strength in all types of connections (rich-club: p < 0.0001; feeder: p = 0.0004; and local: p = 0.0026). CIS patients showed intermediate values between MS patients and HCs and exhibited a decreased strength in feeder and local connections (feeder: p = 0.019; and local: p = 0.031) but not in rich-club connections. Compared with CIS patients, MS patients showed significant reductions in rich-club connections (p = 0.0004). The reduced strength of rich-club and feeder connections was correlated with cognitive impairments in the MS group. These results were independent of lesion distribution and reproducible across different brain parcellation schemes. Conclusion The rich-club organization was disrupted in MS patients and relatively preserved in CIS. The disrupted rich-club connectivity was correlated with cognitive impairment in MS. These findings suggest that impaired rich-club connectivity is an essential feature of progressive structural network disruption, heralding the development of clinical disability in MS. The rich-club organization was disrupted in MS patients and preserved in CIS. The disrupted rich-club connectivity correlated with cognitive impairment in MS. The rich-club results are reproducible across data analysis methods.
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Affiliation(s)
- Ni Shu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, Beijing, China; Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing, China.
| | - Yunyun Duan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, China; Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jing Huang
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhuoqiong Ren
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zheng Liu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Huiqing Dong
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; Institute of Neurology and Healthcare Engineering, University College London, England
| | - Kuncheng Li
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Yaou Liu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, China; Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China; Department of Radiology and Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands.
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Hagemeier J, Ramanathan M, Schweser F, Dwyer MG, Lin F, Bergsland N, Weinstock-Guttman B, Zivadinov R. Iron-related gene variants and brain iron in multiple sclerosis and healthy individuals. Neuroimage Clin 2017; 17:530-540. [PMID: 29201641 PMCID: PMC5699896 DOI: 10.1016/j.nicl.2017.11.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 11/01/2017] [Accepted: 11/03/2017] [Indexed: 12/14/2022]
Abstract
Brain iron homeostasis is known to be disturbed in multiple sclerosis (MS), yet little is known about the association of common gene variants linked to iron regulation and pathological tissue changes in the brain. In this study, we investigated the association of genetic determinants linked to iron regulation with deep gray matter (GM) magnetic susceptibility in both healthy controls (HC) and MS patients. Four hundred (400) patients with MS and 150 age- and sex-matched HCs were enrolled and obtained 3 T MRI examination. Three (3) single nucleotide polymorphisms (SNPs) associated with iron regulation were genotyped: two SNPs in the human hereditary hemochromatosis protein gene HFE: rs1800562 (C282Y mutation) and rs1799945 (H63D mutation), as well as the rs1049296 SNP in the transferrin gene (C2 mutation). The effects of disease and genetic status were studied using quantitative susceptibility mapping (QSM) voxel-based analysis (VBA) and region-of-interest (ROI) analysis of the deep GM. The general linear model framework was used to compare groups. Analyses were corrected for age and sex, and adjusted for false discovery rate. We found moderate increases in susceptibility in the right putamen of participants with the C282Y (+ 6.1 ppb) and H63D (+ 6.9 ppb) gene variants vs. non-carriers, as well as a decrease in thalamic susceptibility of progressive MS patients with the C282Y mutation (left: − 5.3 ppb, right: − 6.7 ppb, p < 0.05). Female MS patients had lower susceptibility in the caudate (− 6.0 ppb) and putamen (left: − 3.9 ppb, right: − 4.6 ppb) than men, but only when they had a wild-type allele (p < 0.05). Iron-gene linked increases in putamen susceptibility (in HC and relapsing remitting MS) and decreases in thalamus susceptibility (in progressive MS), coupled with apparent sex interactions, indicate that brain iron in healthy and disease states may be influenced by genetic factors. Magnetic susceptibility and common gene variants linked to iron were investigated. The C282Y and H63D alleles were associated with putamen and thalamus susceptibility changes. Dependent on allele status, men and women differed in deep GM susceptibility in MS.
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Key Words
- EDSS, Expanded Disability Status Scale
- FDR, false discovery rate
- FWE, family-wise error rate
- GLM, general linear model
- GM, gray matter
- GRE, gradient recalled echo
- HC, healthy control
- HFE, human hemochromatosis gene
- Iron
- Iron related genes
- MS, multiple sclerosis
- MSSS, multiple sclerosis severity scale
- Multiple sclerosis
- QSM
- QSM, quantitative susceptibility mapping
- Quantitative susceptibility mapping
- ROI, region of interest
- RRMS, relapsing-remitting multiple sclerosis
- SNP, single nucleotide polymorphism
- T1w, T1-weighted
- TF, transferrin
- TFCE, threshold-free cluster enhancement
- VBA, voxel-based analysis
- ppb, parts per billion
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Affiliation(s)
- Jesper Hagemeier
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA.
| | - Murali Ramanathan
- Department of Pharmaceutical Sciences, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY, USA
| | - Ferdinand Schweser
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA; Center for Biomedical Imaging, Clinical and Translational Science Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Michael G Dwyer
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Fuchun Lin
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Niels Bergsland
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Bianca Weinstock-Guttman
- Jacobs Multiple Sclerosis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Robert Zivadinov
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA; Center for Biomedical Imaging, Clinical and Translational Science Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
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29
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Gajamange S, Raffelt D, Dhollander T, Lui E, van der Walt A, Kilpatrick T, Fielding J, Connelly A, Kolbe S. Fibre-specific white matter changes in multiple sclerosis patients with optic neuritis. Neuroimage Clin 2017. [PMID: 29527473 PMCID: PMC5842545 DOI: 10.1016/j.nicl.2017.09.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Long term irreversible disability in multiple sclerosis (MS) is thought to be primarily driven by axonal degeneration. Axonal degeneration leads to degenerative atrophy, therefore early markers of axonal degeneration are required to predict clinical disability and treatment efficacy. Given that additional pathologies such as inflammation, demyelination and oedema are also present in MS, it is essential to develop axonal markers that are not confounded by these processes. The present study investigated a novel method for measuring axonal degeneration in MS based on high angular resolution diffusion magnetic resonance imaging. Unlike standard methods, this novel method involved advanced acquisition and modelling for improved axonal sensitivity and specificity. Recent work has developed analytical methods, two novel axonal markers, fibre density and cross-section, that can be estimated for each fibre direction in each voxel (termed a “fixel”). This technique, termed fixel-based analysis, thus simultaneously estimates axonal density and white matter atrophy from specific white matter tracts. Diffusion-weighted imaging datasets were acquired for 17 patients with a history of acute unilateral optic neuritis (35.3 ± 10.2 years, 11 females) and 14 healthy controls (32.7 ± 4.8 years, 8 females) on a 3 T scanner. Fibre density values were compared to standard diffusion tensor imaging parameters (fractional anisotropy and mean diffusivity) in lesions and normal appearing white matter. Group comparisons were performed for each fixel to assess putative differences in fibre density and fibre cross-section. Fibre density was observed to have a comparable sensitivity to fractional anisotropy for detecting white matter pathology in MS, but was not affected by crossing axonal fibres. Whole brain fixel-based analysis revealed significant reductions in fibre density and fibre cross-section in the inferior fronto-occipital fasciculus (including the optic radiations) of patients compared to controls. We interpret this result to indicate that this fixel-based approach is able to detect early loss of fibre density and cross-section in the optic radiations in MS patients with a history of optic neuritis. Fibre-specific markers of axonal degeneration should be investigated further for use in early stage therapeutic trials, or to monitor axonal injury in early stage MS. Fibre density is reduced in lesions and normal-appearing white matter in MS Fibre density detects white matter pathology in regions of crossing fibres Loss of fibre density and cross-section selectively evident in visual pathways of optic neuritis patients.
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Affiliation(s)
- Sanuji Gajamange
- Department of Anatomy and Neuroscience, University of Melbourne, Australia
| | - David Raffelt
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
| | - Thijs Dhollander
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
| | - Elaine Lui
- Department of Radiology, Royal Melbourne Hospital, University of Melbourne, Australia
| | | | - Trevor Kilpatrick
- Department of Anatomy and Neuroscience, University of Melbourne, Australia
| | - Joanne Fielding
- School of Psychological Sciences, Monash University, Australia
| | - Alan Connelly
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia; The Florey Department of Neuroscience and Mental Health, University of Melbourne, Australia
| | - Scott Kolbe
- Department of Anatomy and Neuroscience, University of Melbourne, Australia; The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia.
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30
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Wood ET, Ercan E, Sati P, Cortese ICM, Ronen I, Reich DS. Longitudinal MR spectroscopy of neurodegeneration in multiple sclerosis with diffusion of the intra-axonal constituent N-acetylaspartate. Neuroimage Clin 2017; 15:780-788. [PMID: 28702353 PMCID: PMC5496488 DOI: 10.1016/j.nicl.2017.06.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/08/2017] [Accepted: 06/20/2017] [Indexed: 11/19/2022]
Abstract
Multiple sclerosis (MS) is a pathologically complex CNS disease: inflammation, demyelination, and neuroaxonal degeneration occur concurrently and may depend on one another. Current therapies are aimed at the immune-mediated, inflammatory destruction of myelin, whereas axonal degeneration is ongoing and not specifically targeted. Diffusion-weighted magnetic resonance spectroscopy can measure the diffusivity of metabolites in vivo, such as the axonal/neuronal constituent N-acetylaspartate, allowing compartment-specific assessment of disease-related changes. Previously, we found significantly lower N-acetylaspartate diffusivity in people with MS compared to healthy controls (Wood et al., 2012) suggesting that this technique can measure axonal degeneration and could be useful in developing neuroprotective agents. In this longitudinal study, we found that N-acetylaspartate diffusivity decreased by 8.3% (p < 0.05) over 6 months in participants who were experiencing clinical or MRI evidence of inflammatory activity (n = 13), whereas there was no significant change in N-acetylaspartate diffusivity in the context of clinical and radiological stability (n = 6). As N-acetylaspartate diffusivity measurements are thought to more specifically reflect the intra-axonal space, these data suggest that N-acetylaspartate diffusivity can report on axonal health on the background of multiple pathological processes in MS, both cross-sectionally and longitudinally.
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Key Words
- Axonopathy
- DW-MRS, diffusion-weighted magnetic resonance spectroscopy
- Diffusion-weighted magnetic resonance spectroscopy
- EDSS, Expanded Disability Scale Score
- HV, healthy volunteer
- ICV, intracranial volume
- MS, multiple sclerosis
- Multiple sclerosis
- NAA, N-acetylaspartate
- PASAT, Paced Auditory Symbol Addition Test
- T, Tesla
- VOI, volume of interest
- WM, white matter
- White matter
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Affiliation(s)
- Emily Turner Wood
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Ece Ercan
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Pascal Sati
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Irene C M Cortese
- Neuroimmunology Clinic, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Itamar Ronen
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Daniel S Reich
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA; Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA.
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31
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Affiliation(s)
- Skylar Souyoul
- Department of Dermatology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Katharine Saussy
- Louisiana State University School of Medicine, New Orleans, Louisiana
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32
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Louapre C, Govindarajan ST, Giannì C, Madigan N, Nielsen AS, Sloane JA, Kinkel RP, Mainero C. The association between intra- and juxta-cortical pathology and cognitive impairment in multiple sclerosis by quantitative T 2* mapping at 7 T MRI. Neuroimage Clin 2016; 12:879-886. [PMID: 27872810 PMCID: PMC5107649 DOI: 10.1016/j.nicl.2016.11.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/09/2016] [Accepted: 11/01/2016] [Indexed: 12/18/2022]
Abstract
Using quantitative T2* at 7 Tesla (T) magnetic resonance imaging, we investigated whether impairment in selective cognitive functions in multiple sclerosis (MS) can be explained by pathology in specific areas and/or layers of the cortex. Thirty-one MS patients underwent neuropsychological evaluation, acquisition of 7 T multi-echo T2* gradient-echo sequences, and 3 T anatomical images for cortical surfaces reconstruction. Seventeen age-matched healthy subjects served as controls. Cortical T2* maps were sampled at various depths throughout the cortex and juxtacortex. Relation between T2*, neuropsychological scores and a cognitive index (CI), calculated from a principal component analysis on the whole battery, was tested by a general linear model. Cognitive impairment correlated with T2* increase, independently from white matter lesions and cortical thickness, in cortical areas highly relevant for cognition belonging to the default-mode network (p < 0.05 corrected). Dysfunction in different cognitive functions correlated with longer T2* in selective cortical regions, most of which showed longer T2* relative to controls. For most tests, this association was strongest in deeper cortical layers. Executive dysfunction, however, was mainly related with pathology in juxtameningeal cortex. T2* explained up to 20% of the variance of the CI, independently of conventional imaging metrics (adjusted-R2: 52–67%, p < 5.10− 4). Location of pathology across the cortical width and mantle showed selective correlation with impairment in differing cognitive domains. These findings may guide studies at lower field strength designed to develop surrogate markers of cognitive impairment in MS. Cognitive deficit in multiple sclerosis is associated with cortical T2* increase. Location of clusters of correlation varies upon affected cognitive domains. Global cognitive deficit was associated with T2* increase in deepest cortical layers. Executive dysfunction was associated with T2* increase in outer cortical layers. Regional T2* explained up to 20% of the variance of cognitive performance in MS.
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Key Words
- 7 Tesla MRI
- BVMT - DR, brief visuo-spatial memory test delayed recall
- BVMT, brief visual memory test
- CI, cognitive index
- CVLT, California verbal learning test
- Cognitive impairment
- DB, digit span backward
- DF, digit span forward
- DR, delayed recall
- EDSS, expanded disability status score
- JLOT, judgment of line orientation test
- LDCR, long delayed cued recall
- LDFR, long delayed free recall
- Laminar cortical pathology
- MRI, magnetic resonance imaging
- MS, multiple sclerosis
- Multiple sclerosis
- NP, neuropsychological
- PCA, principal component analysis
- SDMT, symbol digit modalities test
- T2*
- TMT, trail making test
- TOT, total recall
- WCST, Wisconsin card sorting test
- WM, white matter
- WMLV, white matter lesion volume
- q-T2*, quantitative T2*
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Affiliation(s)
- Céline Louapre
- A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Sindhuja T Govindarajan
- A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Costanza Giannì
- A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Nancy Madigan
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | - Jacob A Sloane
- Harvard Medical School, Boston, MA, USA; Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Revere P Kinkel
- University of California San Diego, Department of Neuroscience, San Diego, CA, USA
| | - Caterina Mainero
- A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA
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33
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Saitoh K, Kon S, Nakatsuru T, Inui K, Ihara T, Matsumoto N, Kitai Y, Muromoto R, Matsuda T. Anti-IL-17A blocking antibody reduces cyclosporin A-induced relapse in experimental autoimmune encephalomyelitis mice. Biochem Biophys Rep 2016; 8:139-145. [PMID: 28955949 PMCID: PMC5613930 DOI: 10.1016/j.bbrep.2016.08.021] [Citation(s) in RCA: 4] [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: 03/23/2016] [Revised: 08/22/2016] [Accepted: 08/24/2016] [Indexed: 12/12/2022] Open
Abstract
Cyclosporin A (CsA) is effective at reducing pathogenic immune responses, but upon withdrawal of CsA the immune response often “rebounds” resulting in a relapse or exacerbation of disease. The mechanisms, cells and cytokines involved in the relapse or exacerbation after CsA withdrawal are unknown. We hypothesized that CsA withdrawal induces IL-17 production that could be responsible for relapse, and examined the effect of anti-IL-17A antibody on relapse induced after CsA withdrawal in mouse experimental autoimmune encephalomyelitis (EAE). CsA treatment markedly decreased the EAE disease score during the first episode, but augmented disease severity after CsA withdrawal, compared to untreated mice. After discontinuation of CsA the production of IL-17A was increased and the severity of relapse in EAE was reduced by treatment with anti-IL-17A antibody. These results suggest that the resumption of T cell immune responses after CsA withdrawal leads to a burst of IL-17A production that is at least partially responsible for relapse in EAE mice. Establishment of murine rebound model induced by CsA withdrawal. Enhanced local and systemic secretion of IL-17A in EAE mice after CsA withdrawal. Anti-IL-17A antibody prevents EAE relapse after CsA withdrawal.
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Key Words
- CNS, central nervous system
- CsA, cyclosporine A
- Cyclosporin A (CsA)
- EAE, Experimental autoimmune encephalomyelitis
- Experimental autoimmune encephalomyelitis (EAE)
- IL, interleukin
- IL-17A
- MOG, myelin oligodendrocyte glycoprotein
- MS, multiple sclerosis
- NFAT, Nuclear factor of activated T-cells
- PLP, proteolipid protein
- ROR-γT (, RAR-related orphan receptor-γT
- Relapse
- STAT3, signal transducer and activator of transcription 3, Tc cells: cytotoxic T cells
- TNF-α, tumour necrosis factor-α
- Th cells, helper T cells
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Affiliation(s)
- Kodai Saitoh
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Shigeyuki Kon
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan.,Department of Molecular Immunology, Faculty of Pharmaceutical Sciences, Fukuyama University, Fukuyama 729-0292, Japan
| | - Takuya Nakatsuru
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Kyosuke Inui
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Takeru Ihara
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Naoki Matsumoto
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Yuichi Kitai
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Ryuta Muromoto
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Tadashi Matsuda
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
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Affiliation(s)
- Erika Yue Lee
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario
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Myronovkij S, Negrych N, Nehrych T, Redowicz MJ, Souchelnytskyi S, Stoika R, Kit Y. Identification of a 48 kDa form of unconventional myosin 1c in blood serum of patients with autoimmune diseases. Biochem Biophys Rep 2016; 5:175-179. [PMID: 28955821 PMCID: PMC5600340 DOI: 10.1016/j.bbrep.2015.12.001] [Citation(s) in RCA: 8] [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: 11/03/2015] [Revised: 11/27/2015] [Accepted: 12/02/2015] [Indexed: 12/23/2022] Open
Abstract
We searched for protein markers present in blood serum of multiple sclerosis (MS), rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) patients in comparison to healthy human individuals. We used precipitation/extraction methods and MALDI TOF/TOF mass spectrometry, and identified a protein with Mr ~46 kDa as a fragment of human unconventional myosin IC isoform b (Myo1C). Western blotting with specific anti-human Myo1C antibodies confirmed the identity. Screening of blood serum samples from different autoimmune patients for the presence of Myo1c revealed its high level in MS and RA patients, relatively low level in SLE patients, and undetected in healthy donors. These data are suggesting that the level of p46 Myo1C in blood serum is a potential marker for testing of autoimmune diseases.
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Affiliation(s)
- Severyn Myronovkij
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanova Street 14/16, 79005 Lviv, Ukraine
| | - Nazar Negrych
- Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Tetyana Nehrych
- Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | | | - Serhiy Souchelnytskyi
- College of Medicine, Qatar University, Doha, Qatar
- Oranta CancerDiagnostics AB, Uppsala, Sweden
- Odesa State Medical University, Odesa, Ukraine
- Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Rostyslav Stoika
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanova Street 14/16, 79005 Lviv, Ukraine
| | - Yuriy Kit
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanova Street 14/16, 79005 Lviv, Ukraine
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Geisseler O, Pflugshaupt T, Bezzola L, Reuter K, Weller D, Schuknecht B, Brugger P, Linnebank M. Cortical thinning in the anterior cingulate cortex predicts multiple sclerosis patients' fluency performance in a lateralised manner. Neuroimage Clin 2015; 10:89-95. [PMID: 26759784 PMCID: PMC4683425 DOI: 10.1016/j.nicl.2015.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/10/2015] [Accepted: 11/12/2015] [Indexed: 11/29/2022]
Abstract
Cognitive impairment is as an important feature of Multiple Sclerosis (MS), and might be even more relevant to patients than mobility restrictions. Compared to the multitude of studies investigating memory deficits or basic cognitive slowing, executive dysfunction is a rarely studied cognitive domain in MS, and its neural correlates remain largely unexplored. Even rarer are topological studies on specific cognitive functions in MS. Here we used several structural MRI parameters - including cortical thinning and T2 lesion load - to investigate neural correlates of executive dysfunction, both on a global and a regional level by means of voxel- and vertex-wise analyses. Forty-eight patients with relapsing-remitting MS and 48 healthy controls participated in the study. Five executive functions were assessed, i.e. verbal and figural fluency, working memory, interference control and set shifting. Patients scored lower than controls in verbal and figural fluency only, and displayed widespread cortical thinning. On a global level, cortical thickness independently predicted verbal fluency performance, when controlling for lesion volume and central brain atrophy estimates. On a regional level, cortical thinning in the anterior cingulate region correlated with deficits in verbal and figural fluency and did so in a lateralised manner: Left-sided thinning was related to reduced verbal - but not figural - fluency, whereas the opposite pattern was observed for right-sided thinning. We conclude that executive dysfunction in MS patients can specifically affect verbal and figural fluency. The observed lateralised clinico-anatomical correlation has previously been described in brain-damaged patients with large focal lesions only, for example after stroke. Based on focal grey matter atrophy, we here show for the first time comparable lateralised findings in a white matter disease with widespread pathology.
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Affiliation(s)
- Olivia Geisseler
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
- Department of Psychology, University of Zurich, Binzmühlestrasse 14/1, 8050 Zürich, Switzerland
| | - Tobias Pflugshaupt
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
- Neurology and Neurorehabilitation Center, Luzerner Kantonsspital, 6016 Luzern, Switzerland
| | - Ladina Bezzola
- URPP Dynamics of Healthy Aging, University of Zurich, Andreasstrasse 15/Box 2, 8050 Zurich, Switzerland
| | - Katja Reuter
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
| | - David Weller
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
| | - Bernhard Schuknecht
- Medizinisch Radiologisches Institut, Bahnhofplatz 3, 8001 Zurich, Switzerland
| | - Peter Brugger
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
| | - Michael Linnebank
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, Switzerland
- Department of Neurology, Helios-Klinik Hagen-Ambrock, Ambrocker Weg 60, 58091 Hagen, Germany
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Sweeney EM, Shinohara RT, Dewey BE, Schindler MK, Muschelli J, Reich DS, Crainiceanu CM, Eloyan A. Relating multi-sequence longitudinal intensity profiles and clinical covariates in incident multiple sclerosis lesions. Neuroimage Clin 2015; 10:1-17. [PMID: 26693397 PMCID: PMC4660378 DOI: 10.1016/j.nicl.2015.10.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/22/2015] [Accepted: 10/25/2015] [Indexed: 11/19/2022]
Abstract
The formation of multiple sclerosis (MS) lesions is a complex process involving inflammation, tissue damage, and tissue repair - all of which are visible on structural magnetic resonance imaging (MRI) and potentially modifiable by pharmacological therapy. In this paper, we introduce two statistical models for relating voxel-level, longitudinal, multi-sequence structural MRI intensities within MS lesions to clinical information and therapeutic interventions: (1) a principal component analysis (PCA) and regression model and (2) function-on-scalar regression models. To do so, we first characterize the post-lesion incidence repair process on longitudinal, multi-sequence structural MRI from 34 MS patients as voxel-level intensity profiles. For the PCA regression model, we perform PCA on the intensity profiles to develop a voxel-level biomarker for identifying slow and persistent, long-term intensity changes within lesion tissue voxels. The proposed biomarker's ability to identify such effects is validated by two experienced clinicians (a neuroradiologist and a neurologist). On a scale of 1 to 4, with 4 being the highest quality, the neuroradiologist gave the score on the first PC a median quality rating of 4 (95% CI: [4,4]), and the neurologist gave the score a median rating of 3 (95% CI: [3,3]). We then relate the biomarker to the clinical information in a mixed model framework. Treatment with disease-modifying therapies (p < 0.01), steroids (p < 0.01), and being closer to the boundary of abnormal signal intensity (p < 0.01) are all associated with return of a voxel to an intensity value closer to that of normal-appearing tissue. The function-on-scalar regression model allows for assessment of the post-incidence time points at which the covariates are associated with the profiles. In the function-on-scalar regression, both age and distance to the boundary were found to have a statistically significant association with the lesion intensities at some time point. The two models presented in this article show promise for understanding the mechanisms of tissue damage in MS and for evaluating the impact of treatments for the disease in clinical trials.
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Key Words
- Biomarker
- CI, confidence interval
- Expert rater trial
- FLAIR, fluid-attenuated inversion recovery
- Function-on-scalar regression
- Longitudinal lesion behavior
- Longitudinal study
- MRI, magnetic resonance imaging
- MS, multiple sclerosis
- Multi-sequence imaging
- Multiple sclerosis
- NAWM, normal-appearing white matter
- NINDS, National Institute of Neurological Disease and Stroke
- PC, principal component
- PCA, principal component analysis
- PD, proton density-weighted
- Principal component analysis and regression
- RRMS, relapsing remitting MS
- SPMS, secondary progressive MS
- Structural magnetic resonance imaging
- T, Tesla
- T1, T1-weighted
- T2, T2-weighted
- sd, standard deviation
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Affiliation(s)
- Elizabeth M. Sweeney
- Department of Biostatistics, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, United States
- Translational Neuroradiology Unit, Division of Neuroimmunology and Neurovirology, National Institute of Neurological Disease and Stroke, National Institute of Health, Bethesda, MD 20892, United States
- Corresponding author.
| | - Russell T. Shinohara
- Department of Biostatistics and Epidemiology, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Blake E. Dewey
- Translational Neuroradiology Unit, Division of Neuroimmunology and Neurovirology, National Institute of Neurological Disease and Stroke, National Institute of Health, Bethesda, MD 20892, United States
| | - Matthew K. Schindler
- Translational Neuroradiology Unit, Division of Neuroimmunology and Neurovirology, National Institute of Neurological Disease and Stroke, National Institute of Health, Bethesda, MD 20892, United States
| | - John Muschelli
- Department of Biostatistics, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, United States
| | - Daniel S. Reich
- Department of Biostatistics, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, United States
- Translational Neuroradiology Unit, Division of Neuroimmunology and Neurovirology, National Institute of Neurological Disease and Stroke, National Institute of Health, Bethesda, MD 20892, United States
| | - Ciprian M. Crainiceanu
- Department of Biostatistics, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, United States
| | - Ani Eloyan
- Department of Biostatistics, Brown University School of Public Health, RI 02912, United States
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Peng J, Chen L, Zhu ZG, Zhu ZR, Hu Q, Fang Y. Effect of Corticosteroids on RVNA production of a patient with acute disseminated encephalomyelitis following rabies vaccination as well as administration of HRIG. Hum Vaccin Immunother 2015; 10:3622-6. [PMID: 25668669 DOI: 10.4161/21645515.2014.979621] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 11/19/2022] Open
Abstract
It has not been reported that administration of combining rabies vaccines and immunoglobulin resulted in acute disseminated encephalomyelitis (ADEM) yet. This report described that an old man acquired ADEM after being administrated with purified Vero cell rabies vaccine (PVRV) and Human Rabies Immunoglobulin (HRIG). Then he was given intravenous and oral glucocorticoids. Simultaneously, rabies vaccination was continued with purified Chick embryo cell vaccines (PCECV) instead of PVRV. Furthermore, we analyzed the rabies virus neutralizing antibodies (RVNA) levels in the patient's blood at different time points after rabies vaccination. Collectively, we observed that PCECV vaccination did not affect the prognosis of ADEM, and glucocorticoid was crucial and effective, which had no significant influence on efficacy of PCECV.
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Key Words
- ADEM
- ADEM, acute disseminated encephalomyelitis
- ANCA, Antineutrophil cytoplasmic antibodies
- ASO, Anti-streptolycin O
- CRP, C-reactive protein
- CSF, Cerebrospinal fluid
- CT, Computed tomography
- EEG, electroencephalography
- ESR, Erythrocyte sedimentation rate
- FLAIR, fluid-attenuated inversion recovery
- HDCV, human diploid cell vaccine
- HRIG
- HRIG, Human Rabies Immunoglobulin
- MRI, magnetic resonance image
- MS, multiple sclerosis
- PCECV, purified Chick embryo cell vaccines
- PEP, post-exposure prophylaxis
- PPRC, Pharmacopoeia of the People's Republic of China
- PVRV
- PVRV, purified Vero cell rabies vaccine
- RABV, rabies virus
- RFFIT, rapid fluorescent focus inhibition test
- RVNA
- RVNA, rabies virus neutralizing antibodies
- T2W, T2-weighted
- glucocorticoids
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Affiliation(s)
- Jun Peng
- a Department of Neurology; Union Hospital; Tongji Medical College ; Huazhong University of Science and Technology ; Wuhan , China
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Kolind S, Seddigh A, Combes A, Russell-Schulz B, Tam R, Yogendrakumar V, Deoni S, Sibtain NA, Traboulsee A, Williams SCR, Barker GJ, Brex PA. Brain and cord myelin water imaging: a progressive multiple sclerosis biomarker. Neuroimage Clin 2015; 9:574-80. [PMID: 26594633 PMCID: PMC4625204 DOI: 10.1016/j.nicl.2015.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/09/2015] [Accepted: 10/01/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Conventional magnetic resonance imaging (MRI) is used to diagnose and monitor inflammatory disease in relapsing remitting (RR) multiple sclerosis (MS). In the less common primary progressive (PP) form of MS, in which focal inflammation is less evident, biomarkers are still needed to enable evaluation of novel therapies in clinical trials. Our objective was to characterize the association - across the brain and cervical spinal cord - between clinical disability measures in PPMS and two potential biomarkers (one for myelin, and one for atrophy, both resulting from the same imaging technique). METHODS Multi-component driven equilibrium single pulse observation of T1 and T2 (mcDESPOT) MRI of the brain and cervical spinal cord were obtained for 15 PPMS patients and 11 matched controls. Data were analysed to estimate the signal related to myelin water (VFM), as well as volume measurements. MS disability was assessed using the Multiple Sclerosis Functional Composite score, which includes measures of cognitive processing (Paced Auditory Serial Addition Test), manual dexterity (9-Hole Peg Test) and ambulatory function (Timed 25-Foot Walk); and the Expanded Disability Status Scale. RESULTS Brain and spinal cord volumes were different in PPMS compared to controls, particularly ventricular (+ 46%, p = 0.0006) and cervical spinal cord volume (- 16%, p = 0.0001). Brain and spinal cord myelin (VFM) were also reduced in PPMS (brain: - 11%, p = 0.01; spine: - 19%, p = 0.000004). Cognitive processing correlated with brain ventricular volume (p = 0.009). Manual dexterity correlated with brain ventricular volume (p = 0.007), and both brain and spinal cord VFM (p = 0.01 and 0.06, respectively). Ambulation correlated with spinal cord volume (p = 0.04) and spinal cord VFM (p = 0.04). INTERPRETATION In this study we demonstrated that mcDESPOT can be used to measure myelin and atrophy in the brain and spinal cord. Results correlate well with clinical disability scores in PPMS representing cognitive, fine motor and ambulatory disability.
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Key Words
- 9HPT, 9-Hole Peg Test
- Atrophy
- CCV, cervical cord volume
- CSF, cerebrospinal fluid
- EDSS, Expanded Disability Status Scale
- FOV, field of view
- MR, magnetic resonance
- MRI, magnetic resonance imaging
- MS, multiple sclerosis
- MSFC, Multiple Sclerosis Functional Composite
- Myelin
- Myelin water imaging
- PASAT, Paced Auditory Serial Addition Test
- PP, primary progressive
- Primary progressive multiple sclerosis
- RR, relapsing remitting
- SPGR, spoiled gradient echo
- SSFP, steady state free precession
- Spinal cord
- T25FW, Timed 25-Foot Walk
- TE, echo time
- TR, repetition time
- VFM, myelin water volume fraction
- mcDESPOT, Multi-component driven equilibrium single pulse observation of T1 & T2
- vCSF, ventricular cerebrospinal fluid
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Affiliation(s)
- Shannon Kolind
- Department of Medicine (Division of Neurology), University of BC, Vancouver, Canada
| | - Arshia Seddigh
- King's College Hospital NHS Foundation Trust, London, UK
| | - Anna Combes
- Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | | | - Roger Tam
- Department of Radiology, University of BC, Vancouver, Canada
| | - Vignan Yogendrakumar
- Department of Medicine (Division of Neurology), University of BC, Vancouver, Canada
| | - Sean Deoni
- Department of Pediatric Radiology, Children's Hospital Colorado, Denver, CO, USA ; Department of Radiology, University of Colorado School of Medicine, Denver, CO, USA
| | | | - Anthony Traboulsee
- Department of Medicine (Division of Neurology), University of BC, Vancouver, Canada
| | - Steven C R Williams
- Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Gareth J Barker
- Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Peter A Brex
- King's College Hospital NHS Foundation Trust, London, UK
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Curtin F, Perron H, Kromminga A, Porchet H, Lang AB. Preclinical and early clinical development of GNbAC1, a humanized IgG4 monoclonal antibody targeting endogenous retroviral MSRV-Env protein. MAbs 2015; 7:265-75. [PMID: 25427053 DOI: 10.4161/19420862.2014.985021] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [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: 11/19/2022] Open
Abstract
Monoclonal antibodies (mAbs) play an increasing important role in the therapeutic armamentarium against multiple sclerosis (MS), an inflammatory and degenerative disorder of the central nervous system. Most of the mAbs currently developed for MS are immunomodulators blocking the inflammatory immune process. In contrast with mAbs targeting immune function, GNbAC1, a humanized IgG4 mAb, targets the multiple sclerosis associated retrovirus envelope (MSRV-Env) protein, an upstream factor in the pathophysiology of MS. MSRV-Env protein is of endogenous retroviral origin, expressed in MS brain lesions, and it is pro-inflammatory and toxic to the remyelination process, by preventing the differentiation of oligodendrocyte precursor cells. We present the preclinical and early clinical development results of GNbAC1. The specificity of GNbAC1 for its endogenous retroviral target is described. Efficacy of different mAb versions of GNbAC1 were assessed in MSRV-Env induced experimental allergic encephalitis (EAE), an animal model of MS. Because the target MSRV-Env is not expressed in animals, no relevant animal model exists for a proper in vivo toxicological program. An off-target 2-week toxicity study in mice was thus performed, and it showed an absence of safety risk. Additional in vitro analyses showed an absence of complement or antibody-dependent cytotoxicity as well as a low level of cross-reactivity to human tissues. The first-in-man clinical study in 33 healthy subjects and a long-term clinical study in 10 MS patients showed that GNbAC1 is well tolerated in humans without induction of immunogenicity and that it induces a pharmacodynamic response on MSRV biomarkers. These initial results suggest that the mAb GNbAC1 could be a safe long-term treatment for patients with MS with a unique therapeutic mechanism of action.
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Key Words
- ADCC, antibody-dependent cell-mediated cytotoxicity
- AE, adverse events
- AUC, area under the curve
- BLAST, Basic Local Alignment Search Tool
- CDC, complement-dependent cytotoxicity
- CDR, complementarity-determining regions
- Cmax, maximal concentration
- Cmin, minimal concentration
- HERV-W
- HERV-W, human endogenous retrovirus type W
- HLA, human leukocyte antigen
- MOG, myelin oligodendrocyte glycoprotein
- MS, multiple sclerosis
- MSRV
- MSRV, multiple sclerosis associated retrovirus
- MSRV-Env, multiple sclerosis associated retrovirus envelope protein
- PBMC, peripheral blood mononuclear cell
- SAE, serious adverse event
- SU, surface domain
- Syncytin
- TLR4, Toll-like receptor 4
- ch-GNbAC1, chimeric version of mAb GNbAC1
- drug safety
- human endogenous retrovirus
- mAb, monoclonal antibody
- monoclonal antibody
- mu-GNbAC1, murine version of mAb GNbAC1
- multiple sclerosis
- neurotoxicity
- toxicology
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Wen J, Yablonskiy DA, Luo J, Lancia S, Hildebolt C, Cross AH. Detection and quantification of regional cortical gray matter damage in multiple sclerosis utilizing gradient echo MRI. Neuroimage Clin 2015; 9:164-75. [PMID: 27330979 DOI: 10.1016/j.nicl.2015.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 08/03/2015] [Accepted: 08/04/2015] [Indexed: 12/29/2022]
Abstract
Cortical gray matter (GM) damage is now widely recognized in multiple sclerosis (MS). The standard MRI does not reliably detect cortical GM lesions, although cortical volume loss can be measured. In this study, we demonstrate that the gradient echo MRI can reliably and quantitatively assess cortical GM damage in MS patients using standard clinical scanners. High resolution multi-gradient echo MRI was used for regional mapping of tissue-specific MRI signal transverse relaxation rate values (R2(*)) in 10 each relapsing-remitting, primary-progressive and secondary-progressive MS subjects. A voxel spread function method was used to correct artifacts induced by background field gradients. R2(*) values from healthy controls (HCs) of varying ages were obtained to establish baseline data and calculate ΔR2(*) values - age-adjusted differences between MS patients and HC. Thickness of cortical regions was also measured in all subjects. In cortical regions, ΔR2(*) values of MS patients were also adjusted for changes in cortical thickness. Symbol digit modalities (SDMT) and paced auditory serial addition (PASAT) neurocognitive tests, as well as Expanded Disability Status Score, 25-foot timed walk and nine-hole peg test results were also obtained on all MS subjects. We found that ΔR2(*) values were lower in multiple cortical GM and normal appearing white matter (NAWM) regions in MS compared with HC. ΔR2(*) values of global cortical GM and several specific cortical regions showed significant (p < 0.05) correlations with SDMT and PASAT scores, and showed better correlations than volumetric measures of the same regions. Neurological tests not focused on cognition (Expanded Disability Status Score, 25-foot timed walk and nine-hole peg tests) showed no correlation with cortical GM ΔR2(*) values. The technique presented here is robust and reproducible. It requires less than 10 min and can be implemented on any MRI scanner. Our results show that quantitative tissue-specific R2(*) values can serve as biomarkers of tissue injury due to MS in the brain, including the cerebral cortex, an area that has been difficult to evaluate using standard MRI.
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Key Words
- 25FTW, 25-foot timed walk
- 9HPT, Nine-hole peg test
- Cognitive disability
- Cortical gray matter
- EDSS, expanded disability status scale
- GEPCI, gradient echo plural contrast imaging
- GM, gray matter
- HC, healthy control
- MPRAGE, magnetization prepared rapid gradient echo
- MS, multiple sclerosis
- Multiple sclerosis
- NAWM, normal appearing white matter
- NCGMV, normalized cortical gray matter volume
- PASAT, paced auditory serial addition test
- PPMS, primary-progressive multiple sclerosis
- Quantitative
- R2*
- ROI, region of interest
- RRMS, relapsing–remitting multiple sclerosis
- SDMT, symbol digit modalities test
- SPMS, secondary-progressive multiple sclerosis
- WM, white matter
- WMLL, white matter lesion load
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Asaf A, Evan S, Anat A. Injury to white matter tracts in relapsing-remitting multiple sclerosis: A possible therapeutic window within the first 5 years from onset using diffusion-tensor imaging tract-based spatial statistics. Neuroimage Clin 2015; 8:261-6. [PMID: 26106550 PMCID: PMC4474176 DOI: 10.1016/j.nicl.2015.04.020] [Citation(s) in RCA: 15] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 04/15/2015] [Accepted: 04/28/2015] [Indexed: 11/23/2022]
Abstract
DTI studies in multiple sclerosis (MS) reveal white matter (WM) injury that occurs with disease progression. In the present study we aimed to elucidate the relationship of microstructural WM damage in patients with varying periods of disease duration. DTI scans were acquired from 90 MS patients and 25 healthy controls. Patients were grouped to short (<1 year), moderate (1 up to 6 years) and long (6–10 years) disease duration periods. Statistical analyses of the fractional anisotropy (FA) data were performed using tract-based spatial statistics (TBSS). Whole-brain skeletal FA measurements showed a significant decrease between healthy controls and the short MS disease duration group, as well as between moderate disease duration and long disease duration groups, but failed to show a significant difference between short and moderate disease duration groups. Voxelwise analysis revealed clusters of diffuse FA reductions in 40 WM tracts when comparing healthy controls and MS short disease duration group, with the point of maximal significant difference located in the left inferior longitudinal fasciculus. Comparing short with long disease duration groups, progressive FA reduction was demonstrated across 30 WM tracts, with the point of maximal significant difference migrating to the body of the corpus callosum. A non-linear pattern of WM microstructure disruption occurs in RRMS. Alterations are seen early in the disease course within 1 year from onset, reach a plateau within the next 5 years, and only later additional WM changes are detected. An important period of a possible therapeutic window therefore exists within the early disease stage. A non-linear pattern of WM microstructure disruption occurs in patients with RRMS. WM disruption is identified within 1 year from disease onset. FA reduction is similar in patients with early and moderate disease duration periods. Different patterns of WM disruption occur in patients with longer disease duration.
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Affiliation(s)
- Achiron Asaf
- Multiple Sclerosis Center, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Stone Evan
- Multiple Sclerosis Center, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Achiron Anat
- Multiple Sclerosis Center, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
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Kariya Y, Kariya Y, Saito T, Nishiyama S, Honda T, Tanaka K, Yoshida M, Fujihara K, Hashimoto Y. Increased cerebrospinal fluid osteopontin levels and its involvement in macrophage infiltration in neuromyelitis optica. BBA Clin 2015; 3:126-34. [PMID: 26673877 DOI: 10.1016/j.bbacli.2015.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Neuromyelitis optica (NMO) is an inflammatory disease of the central nervous system that predominantly affects the optic nerves and spinal cord. Although NMO has long been considered a subtype of multiple sclerosis (MS), the effects of interferon-β treatment are different between NMO and MS. Recent findings of NMO-IgG suggest that NMO could be a distinct disease rather than a subtype of MS. However, the underlying molecular mechanism of NMO pathology remains poorly understood. METHODS OPN in the cerebrospinal fluid and brain of patients with NMO and with MS, as well as of patients with other neurologic disease/idiopathic other neurologic disease was examined using Western blotting, ELISA, immunohistochemistry and Boyden chamber. RESULTS Here we show that osteopontin is significantly increased in the cerebrospinal fluid of NMO patients compared with MS patients. Immunohistochemical analyses revealed that osteopontin was markedly elevated in the cerebral white matter of NMO patients and produced by astrocytes, neurons, and oligodendroglia as well as infiltrating macrophages. We also demonstrate that the interaction of the cerebrospinal fluid osteopontin in NMO patients with integrin αvβ3 promoted macrophage chemotaxis by activating phosphoinositide 3-kinase and MEK1/2 signaling pathways. CONCLUSION These results indicate that osteopontin is involved in NMO pathology. GENERAL SIGNIFICANCE Thus therapeutic strategies that target osteopontin signaling may be useful to treat NMO.
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Key Words
- AQP4, aquaporin-4
- Ab, antibody
- Abs, antibodies
- Biomarker
- CNS, central nervous system
- CSF, cerebrospinal fluid
- Cerebrospinal fluid
- EAE, experimental autoimmune encephalomyelitis
- GFAP, glial fibrillary acidic protein
- IFN, interferon
- Integrin
- MS, multiple sclerosis
- Multiple sclerosis
- NMO, neuromyelitis optica
- Neuromyelitis optica
- OPN, osteopontin
- Osteopontin
- PI3K, phosphoinositide 3-kinase
- RGD, Arg–Gly–Asp
- RGE, Arg–Gly–Glu
- TRAP, tartrate-resistant form of acid phosphatase
- mAb, monoclonal antibody
- pAb, polyclonal antibody
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Sertbaş M, Ülgen K, Çakır T. Systematic analysis of transcription-level effects of neurodegenerative diseases on human brain metabolism by a newly reconstructed brain-specific metabolic network. FEBS Open Bio 2014; 4:542-53. [PMID: 25061554 PMCID: PMC4104795 DOI: 10.1016/j.fob.2014.05.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [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: 04/28/2014] [Revised: 05/23/2014] [Accepted: 05/27/2014] [Indexed: 01/02/2023] Open
Abstract
Network-oriented analysis is essential to identify those parts of a cell affected by a given perturbation. The effect of neurodegenerative perturbations in the form of diseases of brain metabolism was investigated by using a newly reconstructed brain-specific metabolic network. The developed stoichiometric model correctly represents healthy brain metabolism, and includes 630 metabolic reactions in and between astrocytes and neurons, which are controlled by 570 genes. The integration of transcriptome data of six neurodegenerative diseases (Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, multiple sclerosis, schizophrenia) with the model was performed to identify reporter features specific and common for these diseases, which revealed metabolites and pathways around which the most significant changes occur. The identified metabolites are potential biomarkers for the pathology of the related diseases. Our model indicated perturbations in oxidative stress, energy metabolism including TCA cycle and lipid metabolism as well as several amino acid related pathways, in agreement with the role of these pathways in the studied diseases. The computational prediction of transcription factors that commonly regulate the reporter metabolites was achieved through binding-site analysis. Literature support for the identified transcription factors such as USF1, SP1 and those from FOX families are known from the literature to have regulatory roles in the identified reporter metabolic pathways as well as in the neurodegenerative diseases. In essence, the reconstructed brain model enables the elucidation of effects of a perturbation on brain metabolism and the illumination of possible machineries in which a specific metabolite or pathway acts as a regulatory spot for cellular reorganization.
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Key Words
- AD, Alzheimer’s disease
- ALS, amyotrophic lateral sclerosis
- Brain metabolic network
- Computational systems biology
- FBA, flux balance analysis
- GABA, gamma-aminobutyric acid
- HD, Huntington’s disease
- KIV, ketoisovalerate
- KLF, Krüppel-like factor
- KMV, alpha-keto-beta-methylvalerate
- MS, multiple sclerosis
- Neurodegenerative diseases
- Neurometabolism
- PCA, principal component analysis
- PD, Parkinson’s disease
- RMA, reporter metabolite analysis
- RPA, reporter pathway analysis
- Reporter metabolite
- SCHZ, schizophrenia
- TCA, tricarboxylic acid
- Transcriptome
- USF, upstream stimulatory factor
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Affiliation(s)
- Mustafa Sertbaş
- Department of Bioengineering, Gebze Institute of Technology, Gebze, Kocaeli, Turkey
- Department of Chemical Engineering, Boğaziçi University, 34342 Bebek, Istanbul, Turkey
| | - Kutlu Ülgen
- Department of Chemical Engineering, Boğaziçi University, 34342 Bebek, Istanbul, Turkey
| | - Tunahan Çakır
- Department of Bioengineering, Gebze Institute of Technology, Gebze, Kocaeli, Turkey
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Jones BC, Nair G, Shea CD, Crainiceanu CM, Cortese ICM, Reich DS. Quantification of multiple-sclerosis-related brain atrophy in two heterogeneous MRI datasets using mixed-effects modeling. Neuroimage Clin 2013; 3:171-9. [PMID: 24179861 PMCID: PMC3791279 DOI: 10.1016/j.nicl.2013.08.001] [Citation(s) in RCA: 22] [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] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 11/24/2022]
Abstract
Brain atrophy, measured by MRI, has been proposed as a useful surrogate marker for disease progression in multiple sclerosis (MS). However, it is conventionally assumed that the accurate quantification of brain atrophy is made difficult, if not impossible, by changes in the parameters of the MRI acquisition, which are almost inevitable over the course of a longitudinal study since MRI technology changes rapidly. This state of affairs can negatively affect clinical trial design and limit the use of historical data. Here, we investigate whether we can coherently estimate brain atrophy rates in a heterogeneous MS sample via linear mixed-effects multivariable regression, incorporating three critical assumptions: (1) using age at time of scanning, rather than time since baseline, as the regressor of interest; (2) scanning individuals with a variety of techniques; and (3) introducing a simple additive correction for major differences in MRI protocol. We fit the model to several measures of brain volume as the outcome in two MS populations: 1123 scans from 195 cases acquired for over approximately 7 years in two natural history protocols (Cohort 1), and 1331 scans from 69 cases seen for over 11 years who were primarily treated with two specific MS disease-modifying therapies (Cohort 2). We compared the mixed-effects model with additive correction for MRI acquisition parameters to a model fit without this correction and performed sample-size calculations to provide an estimate of the number of participants in an MS clinical trial that might be required to see a therapeutic effect of treatment using the approach described here. The results show that without the additive correction for T1-weighted protocol parameters, atrophy was underestimated and subject-specific estimates were more narrowly distributed about the population mean. Ventricular CSF is the most consistently estimated brain volume, with a mean of 2.8%/year increase in Cohort 1 and 4.4%/year increase in Cohort 2. An interesting observation was that gray matter volume decreased and white matter volume remained essentially unchanged in both cohorts, suggesting that changes in ventricular CSF volume are a surrogate for changes in gray matter volume. In conclusion, the mixed-effects modeling framework presented here allows effective use of heterogeneously acquired and historical data in the study of brain atrophy in MS, potentially simplifying the design of future single- and multi-site clinical trials and natural history studies. We model brain atrophy in two heterogeneously acquired MS MRI datasets. Mixed-effects regression effectively adjusts for major MRI differences. Ventricular CSF tracks with gray matter but is more reliably estimated. The method would allow reasonable sample sizes in MS therapeutic trials.
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Affiliation(s)
- Blake C Jones
- Translational Neuroradiology Unit, National Institute of Neurological Disorders and Stroke, NIH, 10 Center Drive MSC 1400, Building 10 Room 5C103, Bethesda, MD 20892, USA ; Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH 44106, USA
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