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Matarazzo M, Pérez-Soriano A, Vafai N, Shahinfard E, Cheng KJC, McKenzie J, Neilson N, Miao Q, Schaffer P, Shinotoh H, Kordower JH, Sossi V, Stoessl AJ. Misfolded protein deposits in Parkinson's disease and Parkinson's disease-related cognitive impairment, a [ 11C]PBB3 study. NPJ Parkinsons Dis 2024; 10:96. [PMID: 38702305 PMCID: PMC11068893 DOI: 10.1038/s41531-024-00708-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/11/2024] [Indexed: 05/06/2024] Open
Abstract
Parkinson's disease (PD) is associated with aggregation of misfolded α-synuclein and other proteins, including tau. We designed a cross-sectional study to quantify the brain binding of [11C]PBB3 (a ligand known to bind to misfolded tau and possibly α-synuclein) as a proxy of misfolded protein aggregation in Parkinson's disease (PD) subjects with and without cognitive impairment and healthy controls (HC). In this cross-sectional study, nineteen cognitively normal PD subjects (CN-PD), thirteen cognitively impaired PD subjects (CI-PD) and ten HC underwent [11C]PBB3 PET. A subset of the PD subjects also underwent PET imaging with [11C](+)DTBZ to assess dopaminergic denervation and [11C]PBR28 to assess neuroinflammation. Compared to HC, PD subjects showed higher [11C]PBB3 binding in the posterior putamen but not the substantia nigra. There was no relationship across subjects between [11C]PBB3 and [11C]PBR28 binding in nigrostriatal regions. [11C]PBB3 binding was increased in the anterior cingulate in CI-PD compared to CN-PD and HC, and there was an inverse correlation between cognitive scores and [11C]PBB3 binding in this region across all PD subjects. Our results support a primary role of abnormal protein deposition localized to the posterior putamen in PD. This suggests that striatal axonal terminals are preferentially involved in the pathophysiology of PD. Furthermore, our findings suggest that anterior cingulate pathology might represent a significant in vivo marker of cognitive impairment in PD, in agreement with previous neuropathological studies.
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Affiliation(s)
- Michele Matarazzo
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
- HM CINAC, Hospital Universitario HM Puerta del Sur, Móstoles, Madrid, Spain
- Department of Medicine, Faculty of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Alexandra Pérez-Soriano
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nasim Vafai
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Elham Shahinfard
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Kevin Ju-Chieh Cheng
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Jessamyn McKenzie
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nicole Neilson
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | | | | | - Hitoshi Shinotoh
- Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, Chiba, Japan
| | - Jeffrey H Kordower
- ASU-Banner Neurodegenerative Disease Research Center and School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - A Jon Stoessl
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada.
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
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Mannheim JG, Fanglu Fu J, Wegener T, Klyuzhin IS, Vafai N, Shahinfard E, McKenzie J, Strongosky A, Wszolek ZK, Jon Stoessl A, Sossi V. Multi-tracer PET correlation analysis reveals disease-specific patterns in Parkinson's disease and asymptomatic LRRK2 pathogenic variant carriers compared to healthy controls. Neuroimage Clin 2024; 42:103600. [PMID: 38599001 PMCID: PMC11015486 DOI: 10.1016/j.nicl.2024.103600] [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: 09/29/2023] [Revised: 03/06/2024] [Accepted: 03/31/2024] [Indexed: 04/12/2024]
Abstract
Several genetic pathogenic variants increase the risk of Parkinson's disease (PD) with pathogenic variants in the leucine-rich repeat kinase 2 (LRRK2) gene being among the most common. A joint pattern analysis based on multi-set canonical correlation analysis (MCCA) was utilized to extract PD and LRRK2 pathogenic variant-specific spatial patterns in relation to healthy controls (HCs) from multi-tracer Positron Emission Tomography (PET) data. Spatial patterns were extracted for individual subject cohorts, as well as for pooled subject cohorts, to explore whether complementary spatial patterns of dopaminergic denervation are different in the asymptomatic and symptomatic stages of PD. The MCCA results are also compared to the traditional univariate analysis, which serves as a reference. We identified PD-induced spatial distribution alterations common to DAT and VMAT2 in both asymptomatic LRRK2 pathogenic variant carriers and PD subjects. The inclusion of HCs in the analysis demonstrated that the dominant common PD-induced pattern is related to an overall dopaminergic terminal density denervation, followed by asymmetry and rostro-caudal gradient with deficits in the less affected side still being the best marker of disease progression. The analysis was able to capture a trend towards PD-related patterns in the LRRK2 pathogenic variant carrier cohort with increasing age in line with the known increased risk of this patient cohort to develop PD as they age. The advantage of this method thus resides in its ability to identify not only regional differences in tracer binding between groups, but also common disease-related alterations in the spatial distribution patterns of tracer binding, thus potentially capturing more complex aspects of disease induced alterations.
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Affiliation(s)
- Julia G Mannheim
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada; Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard-Karls University Tuebingen, Tuebingen, Germany; Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", University of Tuebingen, Tuebingen, Germany.
| | - Jessie Fanglu Fu
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada; Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, United States
| | - Tilman Wegener
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada; Department of Medical Engineering, University of Luebeck, Luebeck, Germany
| | - Ivan S Klyuzhin
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Nasim Vafai
- Pacific Parkinson's Research Centre, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Elham Shahinfard
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada; Pacific Parkinson's Research Centre, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Jessamyn McKenzie
- Pacific Parkinson's Research Centre, The University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - A Jon Stoessl
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada; Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada; Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
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Saraf G, Pinto JV, Cahn A, White AG, Shahinfard E, Vafai N, Sossi V, Yatham LN. Dopamine release during psychological stress in euthymic bipolar I disorder: a Positron Emission Tomography study with [ 11C]raclopride. J Affect Disord 2021; 295:724-732. [PMID: 34517246 DOI: 10.1016/j.jad.2021.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/08/2021] [Accepted: 08/18/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Neurochemical mechanisms underlying stress induced relapse of mood episodes in Bipolar I Disorder (BD) remain unknown. This study investigated whether euthymic BD patients have a greater dopamine release in ventral striatum, caudate and putamen in response to psychological stress using Positron Emission Tomography (PET) scanning with the radiotracer [11C]raclopride. METHODS Euthymic patients with BD (n = 10) and 10 matched healthy controls underwent two [11C]raclopride PET scans, one during a "stress" and the other in a "no stress" condition separated by at least 24 h. Montreal Imaging Stress Test (MIST) was used to induce stress during stress condition. Participants received an injection of [11C]raclopride over one minute followed by PET scan for 60 min. Participants were assessed for mood symptom severity at baseline, and before and after each scan. The reduction in [11C]raclopride binding in stress condition compared with non-stress rest condition for each subject provided an estimate of dopamine release due to stress. RESULTS There was a significant effect of stress in reducing the [11C]raclopride binding in the ventral striatum, caudate and putamen; however, no significant effects of group or condition x group interaction were found. LIMITATIONS Small sample size and recruitment of euthymic patients who may be less vulnerable to stress may limit the generalizability of findings. CONCLUSIONS Our findings showed that psychological stress led to dopamine release in the basal ganglia for all participants but the magnitude of dopamine release during a stress task was not different between euthymic BD patients and healthy controls.
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Affiliation(s)
- Gayatri Saraf
- Department of Psychiatry, University of British Columbia, Vancouver, Canada
| | - Jairo Vinícius Pinto
- Department of Psychiatry, University of British Columbia, Vancouver, Canada; Department of Psychiatry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ariana Cahn
- Department of Psychiatry, University of British Columbia, Vancouver, Canada
| | - Adam George White
- Department of Psychiatry, University of British Columbia, Vancouver, Canada
| | - Elham Shahinfard
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nasim Vafai
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
| | - Lakshmi N Yatham
- Department of Psychiatry, University of British Columbia, Vancouver, Canada.
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Popuri K, Beg MF, Lee H, Balachandar R, Wang L, Sossi V, Jacova C, Baker M, Shahinfard E, Rademakers R, Mackenzie IRA, Hsiung GYR. FDG-PET in presymptomatic C9orf72 mutation carriers. Neuroimage Clin 2021; 31:102687. [PMID: 34049163 PMCID: PMC8170157 DOI: 10.1016/j.nicl.2021.102687] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Our aim is to investigate patterns of brain glucose metabolism using fluorodeoxyglucose positron emission tomography (FDG-PET) in presymptomatic carriers of the C9orf72 repeat expansion to better understand the early preclinical stages of frontotemporal dementia (FTD). METHODS Structural MRI and FDG-PET were performed on clinically asymptomatic members of families with FTD caused by the C9orf72 repeat expansion (15 presymptomatic mutation carriers, C9orf72+; 20 non-carriers, C9orf72-). Regional glucose metabolism in cerebral and cerebellar gray matter was compared between groups. RESULTS The mean age of the C9orf72+ and C9orf72- groups were 45.3 ± 10.6 and 56.0 ± 11.0 years respectively, and the mean age of FTD onset in their families was 56 ± 7 years. Compared to non-carrier controls, the C9orf72+ group exhibited regional hypometabolism, primarily involving the cingulate gyrus, frontal and temporal neocortices (left > right) and bilateral thalami. CONCLUSIONS The C9orf72 repeat expansion is associated with changes in brain glucose metabolism that are demonstrable up to 10 years prior to symptom onset and before changes in gray matter volume become significant. These findings indicate that FDG-PET may be a particularly sensitive and useful method for investigating and monitoring the earliest stages of FTD in individuals with this underlying genetic basis.
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Affiliation(s)
| | | | - Hyunwoo Lee
- Division of Neurology, Department of Medicine, University of British Columbia
| | | | - Lei Wang
- Departments of Psychiatry and Behavioral Sciences and Radiology, Feinberg School of Medicine, Northwestern University
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia
| | | | | | - Elham Shahinfard
- Department of Physics and Astronomy, University of British Columbia
| | | | - Ian R A Mackenzie
- Department of Pathology and Laboratory Medicine, University of British Columbia
| | - Ging-Yuek R Hsiung
- Division of Neurology, Department of Medicine, University of British Columbia.
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Mannheim JG, Cheng JCK, Vafai N, Shahinfard E, English C, McKenzie J, Zhang J, Barlow L, Sossi V. Cross-validation study between the HRRT and the PET component of the SIGNA PET/MRI system with focus on neuroimaging. EJNMMI Phys 2021; 8:20. [PMID: 33635449 PMCID: PMC7910400 DOI: 10.1186/s40658-020-00349-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/16/2020] [Indexed: 01/20/2023] Open
Abstract
Background The Siemens high-resolution research tomograph (HRRT - a dedicated brain PET scanner) is to this day one of the highest resolution PET scanners; thus, it can serve as useful benchmark when evaluating performance of newer scanners. Here, we report results from a cross-validation study between the HRRT and the whole-body GE SIGNA PET/MR focusing on brain imaging. Phantom data were acquired to determine recovery coefficients (RCs), % background variability (%BG), and image voxel noise (%). Cross-validation studies were performed with six healthy volunteers using [11C]DTBZ, [11C]raclopride, and [18F]FDG. Line profiles, regional time-activity curves, regional non-displaceable binding potentials (BPND) for [11C]DTBZ and [11C]raclopride scans, and radioactivity ratios for [18F]FDG scans were calculated and compared between the HRRT and the SIGNA PET/MR. Results Phantom data showed that the PET/MR images reconstructed with an ordered subset expectation maximization (OSEM) algorithm with time-of-flight (TOF) and TOF + point spread function (PSF) + filter revealed similar RCs for the hot spheres compared to those obtained on the HRRT reconstructed with an ordinary Poisson-OSEM algorithm with PSF and PSF + filter. The PET/MR TOF + PSF reconstruction revealed the highest RCs for all hot spheres. Image voxel noise of the PET/MR system was significantly lower. Line profiles revealed excellent spatial agreement between the two systems. BPND values revealed variability of less than 10% for the [11C]DTBZ scans and 19% for [11C]raclopride (based on one subject only). Mean [18F]FDG ratios to pons showed less than 12% differences. Conclusions These results demonstrated comparable performances of the two systems in terms of RCs with lower voxel-level noise (%) present in the PET/MR system. Comparison of in vivo human data confirmed the comparability of the two systems. The whole-body GE SIGNA PET/MR system is well suited for high-resolution brain imaging as no significant performance degradation was found compared to that of the reference standard HRRT.
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Affiliation(s)
- Julia G Mannheim
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada. .,Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard-Karls University Tuebingen, Tuebingen, Germany. .,Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", University of Tuebingen, Tuebingen, Germany.
| | - Ju-Chieh Kevin Cheng
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.,Pacific Parkinson's Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nasim Vafai
- Pacific Parkinson's Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Elham Shahinfard
- Pacific Parkinson's Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Carolyn English
- Pacific Parkinson's Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jessamyn McKenzie
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Jing Zhang
- Global MR Applications & Workflow, GE Healthcare Canada, Vancouver, British Columbia, Canada
| | - Laura Barlow
- UBC MRI Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
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Dao E, Hsiung GYR, Sossi V, Tam R, Shahinfard E, Nicklin E, Al Keridy W, Liu-Ambrose T. Cerebral Amyloid-β Deposition Is Associated with Impaired Gait Speed and Lower Extremity Function. J Alzheimers Dis 2020; 71:S41-S49. [PMID: 30741682 DOI: 10.3233/jad-180848] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Impaired physical function (i.e., slowing of gait, muscle weakness, and poor mobility) is common in older adults with cognitive impairment and dementia. Evidence suggests that cerebral small vessel disease, specifically white matter lesions (WMLs), is associated with impaired physical function, but little research has been conducted to understand the specific role of Alzheimer's disease pathology in physical outcomes. OBJECTIVE The objective of this study was to examine the association between cerebral amyloid-β (Aβ) deposition and physical function in people with cognitive impairment. METHODS Thirty participants completed an 11C Pittsburgh compound B (PIB) position emission tomography (PET) scan to quantify global Aβ deposition using standardized uptake value ratio (SUVR). We assessed usual gait speed, muscle strength of the lower extremities, balance, and functional mobility using the Short Physical Performance Battery (SPPB) and the Timed Up and Go Test (TUGT). Multiple linear regression analyses examined the association between Aβ and each measure of physical function, adjusting for age, body mass index, and WML load. RESULTS Global PIB SUVR was significantly associated with usual gait speed (β= -0.52, p = 0.01) and SPPB performance (β= -0.47, p = 0.02), such that increased Aβ deposition was associated with reduced performance on both measures. Global PIB SUVR was not significantly associated with TUGT performance (β= 0.32, p = 0.08). CONCLUSIONS Cerebral Aβ deposition is associated with reduced gait speed, muscle strength, and balance in older adults with cognitive impairment independent of WML load. However, Aβ deposition was not associated with functional mobility.
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Affiliation(s)
- Elizabeth Dao
- Department of Physical Therapy, University of British Columbia (UBC), Vancouver, Canada.,Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada
| | - Ging-Yuek Robin Hsiung
- Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada.,Division of Neurology, UBC, Vancouver, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, UBC, Vancouver, Canada
| | - Roger Tam
- Department of Radiology, UBC, Vancouver, Canada.,School of Biomedical Engineering, UBC, Vancouver, Canada
| | | | - Eloise Nicklin
- Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada
| | - Walid Al Keridy
- Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada.,Division of Neurology, UBC, Vancouver, Canada
| | - Teresa Liu-Ambrose
- Department of Physical Therapy, University of British Columbia (UBC), Vancouver, Canada.,Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada.,Centre for Hip Health and Mobility, Vancouver Coastal Health Research Institute, Vancouver, Canada
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Sacheli MA, Neva JL, Lakhani B, Murray DK, Vafai N, Shahinfard E, English C, McCormick S, Dinelle K, Neilson N, McKenzie J, Schulzer M, McKenzie DC, Appel‐Cresswell S, McKeown MJ, Boyd LA, Sossi V, Stoessl AJ. Exercise increases caudate dopamine release and ventral striatal activation in Parkinson's disease. Mov Disord 2019; 34:1891-1900. [DOI: 10.1002/mds.27865] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 11/10/2022] Open
Affiliation(s)
- Matthew A. Sacheli
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
| | - Jason L. Neva
- Department of Physical Therapy, Brain Behaviour Laboratory, Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
| | - Bimal Lakhani
- Department of Physical Therapy, Brain Behaviour Laboratory, Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
| | - Danielle K. Murray
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
- Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
| | - Nasim Vafai
- Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada
| | - Elham Shahinfard
- Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada
| | - Carolyn English
- Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada
| | - Siobhan McCormick
- Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada
| | - Katie Dinelle
- Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada
| | - Nicole Neilson
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
| | - Jessamyn McKenzie
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
| | - Michael Schulzer
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
| | - Don C. McKenzie
- School of Kinesiology University of British Columbia Vancouver British Columbia Canada
| | - Silke Appel‐Cresswell
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
- Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
| | - Martin J. McKeown
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
- Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
| | - Lara A. Boyd
- Department of Physical Therapy, Brain Behaviour Laboratory, Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
| | - Vesna Sossi
- Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada
| | - A. Jon Stoessl
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health University of British Columbia & Vancouver Coastal Health Vancouver British Columbia Canada
- Faculty of Medicine University of British Columbia Vancouver British Columbia Canada
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Fu JF, Klyuzhin I, McKenzie J, Neilson N, Shahinfard E, Dinelle K, McKeown MJ, Stoessl AJ, Sossi V. Joint pattern analysis applied to PET DAT and VMAT2 imaging reveals new insights into Parkinson's disease induced presynaptic alterations. Neuroimage Clin 2019; 23:101856. [PMID: 31091502 PMCID: PMC6517523 DOI: 10.1016/j.nicl.2019.101856] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/30/2019] [Accepted: 05/05/2019] [Indexed: 11/03/2022]
Abstract
Most neurodegenerative diseases are known to affect several aspects of brain function, including neurotransmitter systems, metabolic and functional connectivity. Diseases are generally characterized by common clinical characteristics across subjects, but there are also significant inter-subject variations. It is thus reasonable to expect that in terms of brain function, such clinical behaviors will be related to a general overall multi-system pattern of disease-induced alterations and additional brain system-specific abnormalities; these additional abnormalities would be indicative of a possible unique system response to disease or subject-specific propensity to a specific clinical progression. Based on the above considerations we introduce and validate the use of a joint pattern analysis approach, canonical correlation analysis and orthogonal signal correction, to analyze multi-tracer PET data to identify common (reflecting functional similarities) and unique (reflecting functional differences) information provided by each tracer/target. We apply the method to [11C]-DTBZ (VMAT2 marker) and [11C]-MP (DAT marker) data from 15 early Parkinson's disease (PD) subjects; the behavior of these two tracers/targets is well characterized providing robust reference information for the method's outcome. Highly significant common subject profiles were identified that decomposed the characteristic dopaminergic changes into three distinct orthogonal spatial patterns: 1) disease-induced asymmetry between the less and more affected dorsal striatum; 2) disease-induced gradient with caudate and ventral striatum being relatively spared compared to putamen; 3) progressive loss in the less affected striatum, which correlated significantly with disease duration (p < 0.01 for DTBZ, p < 0.05 for MP). These common spatial patterns reproduce all known aspects of these two targets/tracers. In addition, orthogonality of the patterns may indicate different mechanisms underlying disease initiation or progression. Information unique to each tracer revealed a residual striatal asymmetry when targeting VMAT2, consistent with the notion that VMAT2 density is highly related to terminal degeneration; and a residual DAT disease-induced gradient in the striatum with relative DAT preservation in the substantia nigra. This finding may be indicative either of a possible DAT specific early disease compensation and/or related to disease origin. These results demonstrate the applicability and relevance of the joint pattern analysis approach to datasets obtained with two PET tracers; this data driven method, while recapitulating known aspects of the PD-induced tracer/target behaviour, was found to be statistically more robust and provided additional information on (i) correlated behaviors of the two systems, identified as orthogonal patterns, possibly reflecting different disease-induced alterations and (ii) system specific effects of disease. It is thus expected that this approach will be very well suited to the analysis of multi-tracer and/or multi-modality data and to relating the outcomes to different aspects of disease.
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Affiliation(s)
- Jessie Fanglu Fu
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada.
| | - Ivan Klyuzhin
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jessamyn McKenzie
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nicole Neilson
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Elham Shahinfard
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Katie Dinelle
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Martin J McKeown
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - A Jon Stoessl
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
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Sacheli MA, Murray DK, Vafai N, Cherkasova MV, Dinelle K, Shahinfard E, Neilson N, McKenzie J, Schulzer M, Appel-Cresswell S, McKeown MJ, Sossi V, Jon Stoessl A. Habitual exercisers versus sedentary subjects with Parkinson's Disease: Multimodal PET and fMRI study. Mov Disord 2018; 33:1945-1950. [PMID: 30376184 DOI: 10.1002/mds.27498] [Citation(s) in RCA: 24] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/14/2018] [Accepted: 07/19/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The benefits of exercise in PD have been linked to enhanced dopamine (DA) transmission in the striatum. OBJECTIVE To examine differences in DA release, reward signaling, and clinical features between habitual exercisers and sedentary subjects with PD. METHODS Eight habitual exercisers and 9 sedentary subjects completed [11 C]raclopride PET scans before and after stationary cycling to determine exercise-induced release of endogenous DA in the dorsal striatum. Additionally, functional MRI assessed ventral striatum activation during reward anticipation. All participants completed motor (UPDRS III; finger tapping; and timed-up-and-go) and nonmotor (Beck Depression Inventory; Starkstein Apathy Scale) assessments. RESULTS [11 C]Raclopride analysis before and after stationary cycling demonstrated greater DA release in the caudate nuclei of habitual exercisers compared to sedentary subjects (P < 0.05). Habitual exercisers revealed greater activation of ventral striatum during the functional MRI reward task (P < 0.05) and lower apathy (P < 0.05) and bradykinesia (P < 0.05) scores versus sedentary subjects. CONCLUSIONS Habitual exercise is associated with preservation of motor and nonmotor function, possibly mediated by increased DA release. This study formulates a foundation for prospective, randomized controlled studies. © 2018 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Matthew A Sacheli
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Danielle K Murray
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nasim Vafai
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mariya V Cherkasova
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Katie Dinelle
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Elham Shahinfard
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Nicole Neilson
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Jessamyn McKenzie
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Michael Schulzer
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Silke Appel-Cresswell
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Martin J McKeown
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - A Jon Stoessl
- Pacific Parkinson's Research Centre, Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Perez-Soriano A, Matarazzo M, Vafai N, Shahinfard E, Miao Q, Higuchi M, Sossi V, Stoessl AJ. PBB3 binding in a patient with corticobasal syndrome. Mov Disord 2018; 33:1359-1360. [PMID: 29932465 DOI: 10.1002/mds.27405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/02/2018] [Accepted: 03/08/2018] [Indexed: 11/07/2022] Open
Affiliation(s)
- Alexandra Perez-Soriano
- Pacific Parkinson's Research Centre & Djavad Mowafaghian Centre for Brain Health, University of British Columbia and Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Michele Matarazzo
- Pacific Parkinson's Research Centre & Djavad Mowafaghian Centre for Brain Health, University of British Columbia and Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Nasim Vafai
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Elham Shahinfard
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Makoto Higuchi
- National Institute of Radiological Sciences and National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Vesna Sossi
- Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - A Jon Stoessl
- Pacific Parkinson's Research Centre & Djavad Mowafaghian Centre for Brain Health, University of British Columbia and Vancouver Coastal Health, Vancouver, British Columbia, Canada
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11
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Fu JF, Klyuzhin I, Liu S, Shahinfard E, Vafai N, McKenzie J, Neilson N, Mabrouk R, Sacheli MA, Wile D, McKeown MJ, Stoessl AJ, Sossi V. Investigation of serotonergic Parkinson's disease-related covariance pattern using [ 11C]-DASB/PET. Neuroimage Clin 2018; 19:652-660. [PMID: 29946508 PMCID: PMC6014591 DOI: 10.1016/j.nicl.2018.05.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 05/01/2018] [Accepted: 05/19/2018] [Indexed: 11/19/2022]
Abstract
We used positron emission tomography imaging with [11C]-3-amino-4-(2-dimethylaminomethylphenylsulfanyl)- benzonitrile (DASB) and principal component analysis to investigate whether a specific Parkinson's disease (PD)-related spatial covariance pattern could be identified for the serotonergic system. We also explored if non-manifesting leucine-rich repeat kinase 2 (LRRK2) mutation carriers, with normal striatal dopaminergic innervation as measured with [11C]-dihydrotetrabenazine (DTBZ), exhibit a distinct spatial covariance pattern compared to healthy controls and subjects with manifest PD. 15 subjects with sporadic PD, eight subjects with LRRK2 mutation-associated PD, nine LRRK2 non-manifesting mutation carriers, and nine healthy controls participated in the study. The analysis was applied to the DASB non-displaceable binding potential values evaluated in 42 pre-defined regions of interest. PD was found to be associated with a specific spatial covariance pattern, comprising relatively decreased DASB binding in the caudate, putamen and substantia nigra and relatively preserved binding in the hypothalamus and hippocampus; the expression of this pattern in PD subjects was significantly higher than in healthy controls (P < 0.001) and correlated significantly with disease duration (P < 0.01) and with DTBZ binding in the more affected putamen (P < 0.01). The LRRK2 non-manifesting mutation carriers expressed a different pattern, also significantly different from healthy controls (P < 0.001), comprising relatively decreased DASB binding in the pons, pedunculopontine nucleus, thalamus and rostral raphe nucleus, and with relatively preserved binding in the hypothalamus, amygdala, hippocampus and substantia nigra. This pattern was not present in either sporadic or LRRK2 mutation-associated PD subjects. These findings, although obtained with a relatively limited number of subjects, suggest that specific and overall distinct spatial serotonergic patterns may be associated with PD and LRRK2 mutations. Alterations in regions where relative upregulation is observed in both patterns may be indicative of compensatory mechanisms preceding or protecting from disease manifestation.
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Affiliation(s)
- Jessie Fanglu Fu
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada.
| | - Ivan Klyuzhin
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Shuying Liu
- Department of Neurobiology, Neurology and Geriatrics, Xuanwu Hospital Capital Medical University, Beijing, China
| | - Elham Shahinfard
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nasim Vafai
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Jessamyn McKenzie
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nicole Neilson
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Rostom Mabrouk
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Matthew A Sacheli
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Daryl Wile
- University of British Columbia, Okanagan Southern Medical Program, Kelowna, BC, Canada
| | - Martin J McKeown
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - A Jon Stoessl
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia & Vancouver Coastal Health, Vancouver, BC, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
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12
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Laule C, Vavasour IM, Shahinfard E, Mädler B, Zhang J, Li DKB, MacKay AL, Sirrs SM. Hematopoietic Stem Cell Transplantation in Late‐Onset Krabbe Disease: No Evidence of Worsening Demyelination and Axonal Loss 4 Years Post‐allograft. J Neuroimaging 2018; 28:252-255. [DOI: 10.1111/jon.12502] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/16/2018] [Indexed: 11/30/2022] Open
Affiliation(s)
- Cornelia Laule
- Department of RadiologyUniversity of British Columbia Vancouver Canada
- Department of Pathology & Laboratory MedicineUniversity of British Columbia Vancouver Canada
- International Collaboration on Repair Discoveries (ICORD)University of British Columbia Vancouver Canada
- Department of Physics & AstronomyUniversity of British Columbia Vancouver Canada
| | - Irene M. Vavasour
- Department of RadiologyUniversity of British Columbia Vancouver Canada
| | - Elham Shahinfard
- Department of RadiologyUniversity of British Columbia Vancouver Canada
| | | | - Jing Zhang
- Department of RadiologyUniversity of British Columbia Vancouver Canada
| | - David K. B. Li
- Department of RadiologyUniversity of British Columbia Vancouver Canada
- Department of Medicine (Neurology)University of British Columbia Vancouver Canada
| | - Alex L. MacKay
- Department of RadiologyUniversity of British Columbia Vancouver Canada
- Department of Physics & AstronomyUniversity of British Columbia Vancouver Canada
| | - Sandra M. Sirrs
- Department of Medicine (Endocrinology)University of British Columbia Vancouver Canada
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13
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Liu SY, Wile DJ, Fu JF, Valerio J, Shahinfard E, McCormick S, Mabrouk R, Vafai N, McKenzie J, Neilson N, Perez-Soriano A, Arena JE, Cherkasova M, Chan P, Zhang J, Zabetian CP, Aasly JO, Wszolek ZK, McKeown MJ, Adam MJ, Ruth TJ, Schulzer M, Sossi V, Stoessl AJ. The effect of LRRK2 mutations on the cholinergic system in manifest and premanifest stages of Parkinson's disease: a cross-sectional PET study. Lancet Neurol 2018; 17:309-316. [PMID: 29456161 DOI: 10.1016/s1474-4422(18)30032-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 12/27/2017] [Accepted: 01/16/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Markers of neuroinflammation are increased in some patients with LRRK2 Parkinson's disease compared with individuals with idiopathic Parkinson's disease, suggesting possible differences in disease pathogenesis. Previous PET studies have suggested amplified dopamine turnover and preserved serotonergic innervation in LRRK2 mutation carriers. We postulated that patients with LRRK2 mutations might show abnormalities of central cholinergic activity, even before the diagnosis of Parkinson's disease. METHODS Between June, 2009, and December, 2015, we recruited participants from four movement disorder clinics in Canada, Norway, and the USA. Patients with Parkinson's disease were diagnosed by movement disorder neurologists on the basis of the UK Parkinson's Disease Society Brain Bank criteria. LRRK2 carrier status was confirmed by bidirectional Sanger sequencing. We used the PET tracer N-11C-methyl-piperidin-4-yl propionate to scan for acetylcholinesterase activity. The primary outcome measure was rate of acetylcholinesterase hydrolysis, calculated using the striatal input method. We compared acetylcholinesterase hydrolysis rates between groups using ANCOVA, with adjustment for age based on the results of linear regression analysis. FINDINGS We recruited 14 patients with LRRK2 Parkinson's disease, 16 LRRK2 mutation carriers without Parkinson's disease, eight patients with idiopathic Parkinson's disease, and 11 healthy controls. We noted significant between-group differences in rates of acetylcholinesterase hydrolysis in cortical regions (average cortex p=0·009, default mode network-related regions p=0·006, limbic network-related regions p=0·020) and the thalamus (p=0·008). LRRK2 mutation carriers without Parkinson's disease had increased acetylcholinesterase hydrolysis rates compared with healthy controls in the cortex (average cortex, p=0·046). Patients with LRRK2 Parkinson's disease had significantly higher acetylcholinesterase activity in some cortical regions (average cortex p=0·043, default mode network-related regions p=0·021) and the thalamus (thalamus p=0·004) compared with individuals with idiopathic disease. Acetylcholinesterase hydrolysis rates in healthy controls were correlated inversely with age. INTERPRETATION LRRK2 mutations are associated with significantly increased cholinergic activity in the brain in mutation carriers without Parkinson's disease compared with healthy controls and in LRRK2 mutation carriers with Parkinson's disease compared with individuals with idiopathic disease. Changes in cholinergic activity might represent early and sustained attempts to compensate for LRRK2-related dysfunction, or alteration of acetylcholinesterase in non-neuronal cells. FUNDING Michael J Fox Foundation, National Institutes of Health, and Pacific Alzheimer Research Foundation.
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Affiliation(s)
- Shu-Ying Liu
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada; Department of Neurobiology, Neurology, and Geriatrics, Xuanwu Hospital Capital Medical University, Beijing, China
| | - Daryl J Wile
- University of British Columbia-Okanagan Southern Medical Program, Kelowna, BC, Canada
| | - Jessie Fanglu Fu
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Jason Valerio
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Elham Shahinfard
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Siobhan McCormick
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Rostom Mabrouk
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - Nasim Vafai
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Jess McKenzie
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Nicole Neilson
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Alexandra Perez-Soriano
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Julieta E Arena
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Mariya Cherkasova
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Piu Chan
- Department of Neurobiology, Neurology, and Geriatrics, Xuanwu Hospital Capital Medical University, Beijing, China
| | - Jing Zhang
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - Cyrus P Zabetian
- Veterans Affairs Puget Sound Health Care System and Department of Neurology, University of Washington, Seattle, WA, USA
| | - Jan O Aasly
- Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Martin J McKeown
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Michael J Adam
- Department of Chemistry, University of British Columbia, Vancouver, BC, Canada
| | - Thomas J Ruth
- TRIUMF (Tri-University Meson Facility), Vancouver, BC, Canada
| | - Michael Schulzer
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada
| | - A Jon Stoessl
- Djavad Mowafaghian Centre for Brain Health, Pacific Parkinson's Research Centre, University of British Columbia and Vancouver Coastal Health, Vancouver, BC, Canada.
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Perez-Soriano A, Arena JE, Dinelle K, Miao Q, McKenzie J, Neilson N, Puschmann A, Schaffer P, Shinotoh H, Smith-Forrester J, Shahinfard E, Vafai N, Wile D, Wszolek Z, Higuchi M, Sossi V, Stoessl AJ. PBB3 imaging in Parkinsonian disorders: Evidence for binding to tau and other proteins. Mov Disord 2017; 32:1016-1024. [DOI: 10.1002/mds.27029] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/25/2017] [Accepted: 03/30/2017] [Indexed: 01/06/2023] Open
Affiliation(s)
- Alexandra Perez-Soriano
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
| | - Julieta E. Arena
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
| | - Katie Dinelle
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
- Department of Physics & Astronomy; University of British Columbia; Vancouver BC Canada
| | | | - Jessamyn McKenzie
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
| | - Nicole Neilson
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
| | - Andreas Puschmann
- Department of Clinical Sciences; Lund University, Skåne University Hospital; Lund Sweden
| | | | | | - Jenna Smith-Forrester
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
- Department of Physics & Astronomy; University of British Columbia; Vancouver BC Canada
| | - Elham Shahinfard
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
- Department of Physics & Astronomy; University of British Columbia; Vancouver BC Canada
| | - Nasim Vafai
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
- Department of Physics & Astronomy; University of British Columbia; Vancouver BC Canada
| | - Daryl Wile
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
| | | | - Makoto Higuchi
- National Institute of Radiological Sciences; Chiba Japan
| | - Vesna Sossi
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
- Department of Physics & Astronomy; University of British Columbia; Vancouver BC Canada
| | - A. Jon Stoessl
- Pacific Parkinson's Research Centre; Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia & Vancouver Coastal Health; Vancouver BC Canada
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15
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Wile DJ, Agarwal PA, Schulzer M, Mak E, Dinelle K, Shahinfard E, Vafai N, Hasegawa K, Zhang J, McKenzie J, Neilson N, Strongosky A, Uitti RJ, Guttman M, Zabetian CP, Ding YS, Adam M, Aasly J, Wszolek ZK, Farrer M, Sossi V, Stoessl AJ. Serotonin and dopamine transporter PET changes in the premotor phase of LRRK2 parkinsonism: cross-sectional studies. Lancet Neurol 2017; 16:351-359. [PMID: 28336296 PMCID: PMC5477770 DOI: 10.1016/s1474-4422(17)30056-x] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 01/25/2017] [Accepted: 02/24/2017] [Indexed: 11/13/2022]
Abstract
Background Patients with Parkinson’s Disease (PD) may exhibit premotor neurochemical changes in dopaminergic (DA) and nondopaminergic systems. Using positron emission tomography (PET), we studied participants with leucine-rich repeat kinase 2 (LRRK2) mutations and with sporadic PD to assess whether DA and serotonin transporter (SERT) changes were similar in LRRK2 PD and sporadic PD, and whether asymptomatic LRRK2 mutation carriers exhibited PET changes in the absence of motor symptoms. Methods Between July 1999 and May 2016, we did two cross sectional PET studies at the Pacific Parkinson’s Research Centre (Vancouver, Canada) with LRRK2 mutation carriers with or without manifest PD, patients with sporadic PD, and age-matched healthy controls, all aged 18 years or older. Patients with PD were diagnosed by a neurologist with movement disorder training in accordance with the UK Parkinson’s Disease Society Brain Bank criteria. LRRK2 carrier status was confirmed by bi-directional Sanger sequencing. First, affected and unaffected LRRK2 carriers seen from July 1999 to January 2012 were imaged with PET tracers for the membrane dopamine transporter (DAT) and dopamine synthesis and storage (18F-6-fluoro-L-dopa; FDOPA) and compared with sporadic PD and age-matched healthy controls. Second, distinct groups of LRRK2 mutation carriers, sporadic PD patients, and age-matched healthy controls seen from November 2012 to May 2016 were studied with tracers for the SERT and vesicular monoamine transporter 2 (VMAT2). Striatal DAT binding, DTBZ binding, FDOPA uptake and SERT binding in multiple brain regions were compared using analysis of covariance adjusted for age. Findings Using data from 40 LRRK2 mutation carriers, 63 patients with sporadic PD, and 35 controls, we identified significant group differences in striatal DAT binding (all age ranges p<0·0001 in caudate and putamen) and FDOPA uptake (age 50 or lower in caudate, p=0·0002; all other age ranges p<0·0001; in putamen, all age ranges p<0·0001). Affected LRRK2 mutation carriers (n=15) had reduced striatal DAT binding and FDOPA uptake, comparable to sporadic PD of similar duration. Unaffected carriers (n=25) had greater FDOPA uptake and DAT binding than sporadic PD (n=63), with FDOPA uptake comparable to and DAT binding lower than healthy controls. Unaffected LRRK2 carriers (n=9) had significantly elevated SERT binding in hypothalamus (greater than healthy controls, 7 LRRK2 PD and 13 sporadic PD subjects; p<0·0001), striatum (greater than sporadic PD; p=0·02) and brainstem (greater than affected LRRK2 carriers; p=0·01) after adjustment for age. SERT binding in cortex was not significantly different between groups after age adjustment. Striatal DTBZ binding was reduced in all affected patients and asymmetrically reduced in one unaffected carrier. Interpretation Dopaminergic and serotonergic changes progress in a similar fashion in LRRK2 PD and sporadic PD, but unaffected LRRK2 mutation carriers exhibit increased SERT binding in striatum, brainstem and hypothalamus, possibly reflecting compensatory changes in serotonergic innervation preceding the motor onset of PD. Funding Canada Research Chairs, Michael J. Fox Foundation, National Institutes of Health, Pacific Alzheimer Research Foundation, Pacific Parkinson’s Research Institute, National Research Council of Canada
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Affiliation(s)
- Daryl J Wile
- University of British Columbia, Department of Medicine, Vancouver, BC, Canada.
| | | | | | - Edwin Mak
- Pacific Parkinson's Research Centre, Vancouver, BC, Canada
| | | | | | - Nasim Vafai
- Department of Physics and Astronomy, Vancouver, BC, Canada
| | | | - Jing Zhang
- Veterans Affairs Puget Sound Health Care System and Department of Neurology, University of Washington, Seattle, WA, USA
| | | | - Nicole Neilson
- Pacific Parkinson's Research Centre, Vancouver, BC, Canada
| | | | | | - Mark Guttman
- Centre for Movement Disorders, Toronto, ON, Canada
| | - Cyrus P Zabetian
- Veterans Affairs Puget Sound Health Care System and Department of Neurology, University of Washington, Seattle, WA, USA
| | - Yu-Shin Ding
- New York University School of Medicine, New York, NY, USA
| | | | - Jan Aasly
- Norwegian University of Science and Technology, Trondheim, Norway
| | | | | | - Vesna Sossi
- Department of Physics and Astronomy, Vancouver, BC, Canada
| | - A Jon Stoessl
- University of British Columbia, Department of Medicine, Vancouver, BC, Canada; Pacific Parkinson's Research Centre, Vancouver, BC, Canada
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Shahinfard E, Robin Hsiung GY, Boyd L, Jacova C, Slack P, Kirkland K. P4‐042: An FMRI Study to Investigate the Benefits of Music Therapy in Patients with Alzheimer's Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.2131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | - Lara Boyd
- University of British ColumbiaVancouverBC Canada
| | - Claudia Jacova
- University of British ColumbiaVancouverBC Canada
- Pacific University OregonForest GroveOR USA
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Klyuzhin IS, Gonzalez M, Shahinfard E, Vafai N, Sossi V. Exploring the use of shape and texture descriptors of positron emission tomography tracer distribution in imaging studies of neurodegenerative disease. J Cereb Blood Flow Metab 2016; 36:1122-34. [PMID: 26661171 PMCID: PMC4908618 DOI: 10.1177/0271678x15606718] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 07/29/2015] [Indexed: 11/17/2022]
Abstract
Positron emission tomography (PET) data related to neurodegeneration are most often quantified using methods based on tracer kinetic modeling. In contrast, here we investigate the ability of geometry and texture-based metrics that are independent of kinetic modeling to convey useful information on disease state. The study was performed using data from Parkinson's disease subjects imaged with (11)C-dihydrotetrabenazine and (11)C-raclopride. The pattern of the radiotracer distribution in the striatum was quantified using image-based metrics evaluated over multiple regions of interest that were defined on co-registered PET and MRI images. Regression analysis showed a significant degree of correlation between several investigated metrics and clinical evaluations of the disease (p < 0.01). The best results were obtained with the first-order moment invariant of the radioactivity concentration values estimated over the full structural extent of the region as defined by MRI (R(2 )= 0.94). These results demonstrate that there is clinically relevant quantitative information in the tracer distribution pattern that can be captured using geometric and texture descriptors. Such metrics may provide an alternate and complementary data analysis approach to traditional kinetic modeling.
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Affiliation(s)
- Ivan S Klyuzhin
- Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
| | - Marjorie Gonzalez
- Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
| | - Elham Shahinfard
- Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
| | - Nasim Vafai
- Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
| | - Vesna Sossi
- Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
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18
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Wright AD, Jarrett M, Vavasour I, Shahinfard E, Kolind S, van Donkelaar P, Taunton J, Li D, Rauscher A. Myelin Water Fraction Is Transiently Reduced after a Single Mild Traumatic Brain Injury--A Prospective Cohort Study in Collegiate Hockey Players. PLoS One 2016; 11:e0150215. [PMID: 26913900 PMCID: PMC4767387 DOI: 10.1371/journal.pone.0150215] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 02/10/2016] [Indexed: 12/12/2022] Open
Abstract
Impact-related mild traumatic brain injuries (mTBI) are a major public health concern, and remain as one of the most poorly understood injuries in the field of neuroscience. Currently, the diagnosis and management of such injuries are based largely on patient-reported symptoms. An improved understanding of the underlying pathophysiology of mTBI is urgently needed in order to develop better diagnostic and management protocols. Specifically, dynamic post-injury changes to the myelin sheath in the human brain have not been examined, despite ‘compromised white matter integrity’ often being described as a consequence of mTBI. In this preliminary cohort study, myelin water imaging was used to prospectively evaluate changes in myelin water fraction, derived from the T2 decay signal, in two varsity hockey teams (45 players) over one season of athletic competition. 11 players sustained a concussion during competition, and were scanned at 72 hours, 2 weeks, and 2 months post-injury. Results demonstrated a reduction in myelin water fraction at 2 weeks post-injury in several brain areas relative to preseason scans, including the splenium of the corpus callosum, right posterior thalamic radiation, left superior corona radiata, left superior longitudinal fasciculus, and left posterior limb of the internal capsule. Myelin water fraction recovered to pre-season values by 2 months post-injury. These results may indicate transient myelin disruption following a single mTBI, with subsequent remyelination of affected neurons. Myelin disruption was not apparent in the athletes who did not experience a concussion, despite exposure to repetitive subconcussive trauma over a season of collegiate hockey. These findings may help to explain many of the metabolic and neurological deficits observed clinically following mTBI.
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Affiliation(s)
- Alexander D. Wright
- MD/PhD Program, University of British Columbia, Vancouver, Canada
- Southern Medical Program, University of British Columbia Okanagan, Kelowna, Canada
- Department of Experimental Medicine, University of British Columbia, Vancouver, Canada
| | - Michael Jarrett
- UBC MRI Research Centre, University of British Columbia, Vancouver, Canada
| | - Irene Vavasour
- UBC MRI Research Centre, University of British Columbia, Vancouver, Canada
| | - Elham Shahinfard
- UBC MRI Research Centre, University of British Columbia, Vancouver, Canada
| | - Shannon Kolind
- Faculty of Medicine, Division of Neurology, University of British Columbia, Vancouver, Canada
| | - Paul van Donkelaar
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, Canada
| | - Jack Taunton
- Faculty of Medicine, Division of Sports Medicine, University of British Columbia, Vancouver, Canada
| | - David Li
- Faculty of Medicine, Department of Radiology, University of British Columbia, Vancouver, Canada
| | - Alexander Rauscher
- UBC MRI Research Centre, University of British Columbia, Vancouver, Canada
- Department of Pediatrics, Division of Neurology, University of British Columbia, Vancouver, Canada
- * E-mail:
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19
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Jarrett M, Tam R, Hernández-Torres E, Martin N, Perera W, Zhao Y, Shahinfard E, Dadachanji S, Taunton J, Li DKB, Rauscher A. A Prospective Pilot Investigation of Brain Volume, White Matter Hyperintensities, and Hemorrhagic Lesions after Mild Traumatic Brain Injury. Front Neurol 2016; 7:11. [PMID: 26903944 PMCID: PMC4751255 DOI: 10.3389/fneur.2016.00011] [Citation(s) in RCA: 35] [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: 09/15/2015] [Accepted: 01/22/2016] [Indexed: 12/14/2022] Open
Abstract
Traumatic brain injury (TBI) is among the most common neurological disorders. Hemorrhagic lesions and white matter hyperintensities (WMH) are radiological features associated with moderate and severe TBI. Brain volume reductions have also been observed during the months following injury. In concussion, no signs of injury are observed on conventional magnetic resonance imaging (MRI), which may be a true feature of concussion or merely due to the limited sensitivity of imaging techniques used so far. Moreover, it is not known whether volume reductions are due to the resolution of trauma-related edema or a true volume loss. Forty-five collegiate-level ice hockey players (20 females) and 15 controls (9 females), 40 players underwent 3-T MRI for hemorrhages [multi-echo susceptibility-weighted imaging (SWI)], WMH (three-dimensional fluid-attenuated inversion recovery), and brain volume at the beginning and the end of the hockey season. Concussed athletes underwent additional imaging and neuropsychological testing at 3 days, 2 weeks, and 2 months after injury. At the end of the hockey season, brain volume was reduced compared to controls by 0.32% (p < 0.034) in the whole cohort and by 0.26% (p < 0.09) in the concussed athletes. Two weeks and 2 months after concussion, brain volume was reduced by −0.08% (p = 0.027) and −0.23% (p = 0.035), respectively. In athletes, the WMH were significantly closer to the interface between gray matter and white matter compared to controls. No significant changes in the number of WMH over the duration of the study were found in athletes. No microhemorrhages were detected as a result of concussion or playing a season of ice hockey. We conclude that mild TBI does not lead to transient increases in brain volume and no new microbleeds or WMH are detectable after concussion. Brain volume reductions appear by 2 weeks after concussion and persist until at least 2 months after concussion. Brain volume is reduced between the beginning and the end of the ice hockey season.
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Affiliation(s)
- Michael Jarrett
- UBC MRI Research Centre, University of British Columbia , Vancouver, BC , Canada
| | - Roger Tam
- Department of Radiology, University of British Columbia, Vancouver, BC, Canada; Department of Radiology, University of British Columbia, Vancouver, BC, Canada
| | | | - Nancy Martin
- Department of Radiology, Richmond Hospital, Richmond, BC, Canada; Department of Radiology, Burnaby Hospital, Burnaby, BC, Canada; Department of Radiology, Delta Hospital, Delta, BC, Canada
| | - Warren Perera
- Medical Imaging Department, St Vincent's Hospital , Melbourne, VIC , Australia
| | - Yinshan Zhao
- Division of Neurology, Department of Medicine, University of British Columbia , Vancouver, BC , Canada
| | - Elham Shahinfard
- Division of Neurology, Department of Medicine, University of British Columbia , Vancouver, BC , Canada
| | - Shiroy Dadachanji
- Division of Sports Medicine, Faculty of Medicine, University of British Columbia , Vancouver, BC , Canada
| | - Jack Taunton
- Division of Sports Medicine, Faculty of Medicine, University of British Columbia , Vancouver, BC , Canada
| | - David K B Li
- UBC MRI Research Centre, University of British Columbia, Vancouver, BC, Canada; Department of Radiology, University of British Columbia, Vancouver, BC, Canada; MS/MRI Research Group, University of British Columbia, Vancouver, BC, Canada
| | - Alexander Rauscher
- UBC MRI Research Centre, University of British Columbia, Vancouver, BC, Canada; Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada; Division of Neurology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
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