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Poirier SE, Suskin NG, Khaw AV, Thiessen JD, Shoemaker JK, Anazodo UC. Probing Evidence of Cerebral White Matter Microstructural Disruptions in Ischemic Heart Disease Before and Following Cardiac Rehabilitation: A Diffusion Tensor MR Imaging Study. J Magn Reson Imaging 2024; 59:2137-2149. [PMID: 37589418 DOI: 10.1002/jmri.28964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Ischemic heart disease (IHD) is linked to brain white matter (WM) breakdown but how age or disease effects WM integrity, and whether it is reversible using cardiac rehabilitation (CR), remains unclear. PURPOSE To assess the effects of brain aging, cardiovascular disease, and CR on WM microstructure in brains of IHD patients following a cardiac event. STUDY TYPE Retrospective. POPULATION Thirty-five IHD patients (9 females; mean age = 59 ± 8 years), 21 age-matched healthy controls (10 females; mean age = 59 ± 8 years), and 25 younger controls (14 females; mean age = 26 ± 4 years). FIELD STRENGTH/SEQUENCE 3 T diffusion-weighted imaging with single-shot echo planar imaging acquired at 3 months and 9 months post-cardiac event. ASSESSMENT Tract-based spatial statistics (TBSS) and tractometry were used to compare fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) in cerebral WM between: 1) older and younger controls to distinguish age-related from disease-related WM changes; 2) IHD patients at baseline (pre-CR) and age-matched controls to investigate if cardiovascular disease exacerbates age-related WM changes; and 3) IHD patients pre-CR and post-CR to investigate the neuroplastic effect of CR on WM microstructure. STATISTICAL TESTS Two-sample unpaired t-test (age: older vs. younger controls; IHD: IHD pre-CR vs. age-matched controls). One-sample paired t-test (CR: IHD pre- vs. post-CR). Statistical threshold: P < 0.05 (FWE-corrected). RESULTS TBSS and tractometry revealed widespread WM changes in older controls compared to younger controls while WM clusters of decreased FA in the fornix and increased MD in body of corpus callosum were observed in IHD patients pre-CR compared to age-matched controls. Robust WM improvements (increased FA, increased AD) were observed in IHD patients post-CR. DATA CONCLUSION In IHD, both brain aging and cardiovascular disease may contribute to WM disruptions. IHD-related WM disruptions may be favorably modified by CR. LEVEL OF EVIDENCE 3 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Stefan E Poirier
- Lawson Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Neville G Suskin
- Division of Cardiology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Alexander V Khaw
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Jonathan D Thiessen
- Lawson Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Medical Imaging, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Joel K Shoemaker
- School of Kinesiology, Western University, London, Ontario, Canada
| | - Udunna C Anazodo
- Lawson Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Research Centre for Studies in Aging, McGill University, Montréal, Québec, Canada
- Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
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2
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Winning L, De Looze C, Knight SP, Carey D, Meaney JF, Kenny RA, O'Connell B. Tooth loss and regional grey matter volume. J Dent 2023; 129:104393. [PMID: 36563839 DOI: 10.1016/j.jdent.2022.104393] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES To investigate whether tooth loss was associated with regional grey matter volume (GMV) in a group of community dwelling older men and women from Ireland. METHODS A group of 380 dementia-free men and women underwent a dental examination and had a Magnetic Resonance Imaging (MRI) scan as part of The Irish Longitudinal Study of Aging (TILDA). Cortical parcellation was conducted using Freesurfer utilities to produce volumetric measures of gyral based regions of interest. Analysis included multiple linear regression to investigate the association between tooth loss and regional GMVs with adjustment for various confounders. RESULTS The mean age of participants was 68.1 years (SD 7.3) and 51.6% of the group were female. 50 (13.2%) of the participants were edentulous, 148 (38.9%) had 1-19 teeth, and 182 (47.9%) had ≥20 teeth. Multiple liner regression analysis with adjustment for a range of potential confounders showed associations between the number of teeth and GMVs in the paracentral lobule and the cuneus cortex. In the paracentral lobule, comparing participants with 1-19 teeth versus edentates there was an increase in GMV of β=323.0mm3 (95% Confidence Interval [CI] 84.5, 561.6) and when comparing participants with ≥20 teeth to edentates there was an increase of β=382.3mm3 (95% CI 126.9, 637.7). In the cuneus cortex, comparing participants with ≥20 teeth to edentates there was an increase in GMV of β=380.5mm3 (95% CI 69.4, 691.5). CONCLUSIONS In this group of older men and women from Ireland, the number of teeth was associated with GMVs in the paracentral lobule and the cuneus cortex independent of various known confounders. CLINICAL SIGNIFICANCE Although not proof of causation, the finding that tooth loss was associated with regional reduced GMV in the brain may represent a potential explanatory link to the observed association between tooth loss and cognitive decline.
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Affiliation(s)
- Lewis Winning
- Dublin Dental University Hospital, Trinity College Dublin, Ireland.
| | - Céline De Looze
- The Irish Longitudinal Study on Ageing (TILDA), Trinity College Dublin, Ireland
| | - Silvin P Knight
- The Irish Longitudinal Study on Ageing (TILDA), Trinity College Dublin, Ireland
| | - Daniel Carey
- The Irish Longitudinal Study on Ageing (TILDA), Trinity College Dublin, Ireland; School of Medicine, Trinity College Dublin, Ireland
| | - James F Meaney
- School of Medicine, Trinity College Dublin, Ireland; The National Centre for Advanced Medical Imaging (CAMI), St. James's Hospital, Dublin, Ireland
| | - Rose Anne Kenny
- The Irish Longitudinal Study on Ageing (TILDA), Trinity College Dublin, Ireland; Mercer's Institute for Successful Ageing, St James's Hospital, Dublin, Ireland
| | - Brian O'Connell
- Dublin Dental University Hospital, Trinity College Dublin, Ireland; The Irish Longitudinal Study on Ageing (TILDA), Trinity College Dublin, Ireland
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Niu J, Zhang J, Yan J, Xu Z, Fang X, You J, Liu Z, Wu W, Li T. Neural Dysconnectivity in the Hippocampus Correlates With White Matter Lesions and Cognitive Measures in Patients With Coronary Artery Disease. Front Aging Neurosci 2022; 14:786253. [PMID: 35832064 PMCID: PMC9271740 DOI: 10.3389/fnagi.2022.786253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
PurposeRecent neuroimaging reports have shown the microstructural changes in coronary artery disease (CAD) and its correlation with cognitive dysfunction while little is known about the functional characteristics of CAD. We hypothesize that functional characteristics may give clues to underlying pathology in CAD and its link with cognitive dysfunction. Degree centrality (DC), a graph-based assessment of network organization was performed to explore the neural connectivity changes in CAD patients compared with healthy controls and their correlation with cognitive measures.MethodsThirty CAD patients and 36 healthy controls were included in our study. All participants underwent functional magnetic resonance imaging (fMRI) of the brain. We performed DC analysis to identify voxels that showed changes in whole-brain functional connectivity with other voxels. DC was measured by the fMRI graph method and comparisons between the two groups were done. All participants underwent neuropsychological assessment (Montreal Cognitive Assessment, MoCA and Mini-Mental State Examination, MMSE).ResultsOur data analysis included 30 CAD patients (59.90 ± 7.53 years) and 36 HCs (61.61 ± 6.19 years). CAD patients showed a greater prevalence of white matter lesions using the Fazekas score than healthy controls (P < 0.001). Importantly, CAD patients showed significantly lower (P < 0.001) MoCA and MMSE scores compared with healthy controls. CAD patients showed significantly decreased DC value (P < 0.001) in the right hippocampus (hippocampus_R), right lingual gyrus (lingual_R), and significantly increased DC value (P < 0.001) in the left middle frontal gyrus (Frontal_Mid_L) when compared with healthy controls respectively. DC value in the hippocampus_R significantly correlated (P < 0.00) with MMSE and MoCA scores in CAD patients. Fazekas scores in CAD patients showed a significant correlation (P < 0.001) with the DC value in the hippocampus_R.ConclusionThese findings suggest that reduced cerebral neural connectivity in CAD may contribute to their cognitive impairment and white matter microstructural damage.
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Schindler LS, Subramaniapillai S, Barth C, van der Meer D, Pedersen ML, Kaufmann T, Maximov II, Linge J, Leinhard OD, Beck D, Gurholt TP, Voldsbekk I, Suri S, Ebmeier KP, Draganski B, Andreassen OA, Westlye LT, de Lange AMG. Associations between abdominal adipose tissue, reproductive span, and brain characteristics in post-menopausal women. Neuroimage Clin 2022; 36:103239. [PMID: 36451350 PMCID: PMC9668664 DOI: 10.1016/j.nicl.2022.103239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/06/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
Abstract
The menopause transition involves changes in oestrogens and adipose tissue distribution, which may influence female brain health post-menopause. Although increased central fat accumulation is linked to risk of cardiometabolic diseases, adipose tissue also serves as the primary biosynthesis site of oestrogens post-menopause. It is unclear whether different types of adipose tissue play diverging roles in female brain health post-menopause, and whether this depends on lifetime oestrogen exposure, which can have lasting effects on the brain and body even after menopause. Using the UK Biobank sample, we investigated associations between brain characteristics and visceral adipose tissue (VAT) and abdominal subcutaneous adipose tissue (ASAT) in 10,251 post-menopausal females, and assessed whether the relationships varied depending on length of reproductive span (age at menarche to age at menopause). To parse the effects of common genetic variation, we computed polygenic scores for reproductive span. The results showed that higher VAT and ASAT were both associated with higher grey and white matter brain age, and greater white matter hyperintensity load. The associations varied positively with reproductive span, indicating more prominent associations between adipose tissue and brain measures in females with a longer reproductive span. The effects were in general small, but could not be fully explained by genetic variation or relevant confounders. Our findings indicate that associations between abdominal adipose tissue and brain health post-menopause may partly depend on individual differences in cumulative oestrogen exposure during reproductive years, emphasising the complexity of neural and endocrine ageing processes in females.
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Affiliation(s)
- Louise S Schindler
- LREN, Centre for Research in Neurosciences, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Department of Psychology, University of Oslo, Oslo, Norway.
| | - Sivaniya Subramaniapillai
- LREN, Centre for Research in Neurosciences, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Department of Psychology, University of Oslo, Oslo, Norway
| | - Claudia Barth
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Dennis van der Meer
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; School of Mental Health and Neuroscience, Faculty of Health Medicine and Life Sciences, Maastricht University, The Netherlands
| | - Mads L Pedersen
- Department of Psychology, University of Oslo, Oslo, Norway; NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Tobias Kaufmann
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Psychiatry and Psychotherapy, University of Tübingen, Germany
| | - Ivan I Maximov
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Health and Functioning, Western Norway University of Applied Sciences, Bergen, Norway
| | - Jennifer Linge
- AMRA Medical AB, Linköping, Sweden; Department of Health, Medicine, and Caring Sciences, Linköping University, Linköping, Sweden
| | - Olof Dahlqvist Leinhard
- AMRA Medical AB, Linköping, Sweden; Department of Health, Medicine, and Caring Sciences, Linköping University, Linköping, Sweden; Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden
| | - Dani Beck
- Department of Psychology, University of Oslo, Oslo, Norway; NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Tiril P Gurholt
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Irene Voldsbekk
- Department of Psychology, University of Oslo, Oslo, Norway; NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Sana Suri
- Department of Psychiatry, University of Oxford, Oxford, UK; Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK
| | | | - Bogdan Draganski
- LREN, Centre for Research in Neurosciences, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Dept. of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Ole A Andreassen
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway
| | - Lars T Westlye
- Department of Psychology, University of Oslo, Oslo, Norway; NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway
| | - Ann-Marie G de Lange
- LREN, Centre for Research in Neurosciences, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Department of Psychology, University of Oslo, Oslo, Norway; Department of Psychiatry, University of Oxford, Oxford, UK
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5
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Wanleenuwat P, Iwanowski P, Kozubski W. Alzheimer's dementia: pathogenesis and impact of cardiovascular risk factors on cognitive decline. Postgrad Med 2019; 131:415-422. [PMID: 31424301 DOI: 10.1080/00325481.2019.1657776] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Alzheimer's disease (AD) is the most common form of dementia manifesting as alterations in cognitive abilities, behavior, and deterioration in memory which is progressive, leading to gradual worsening of symptoms. Major pathological features of AD are accumulations of neuronal amyloid plaques and neurofibrillary tangles, with early lesions appearing primarily in the hippocampus, the area of the brain involved in memory and learning. Cardiovascular-related risk factors are believed to play a crucial role in disease development and the acceleration of cognitive deterioration by worsening cerebral perfusion, promoting disturbances in amyloid clearance. Current evidence supports hypertension, hypotension, heart failure, stroke and coronary artery diseases as potential factors playing a role in cognitive decline in patients with Alzheimer's dementia. Although dementia due to cardiovascular deficits is more strongly linked to the development of vascular dementia, a stepwise decline in cognition, recent researches have also discovered its deleterious influence on AD development.
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Affiliation(s)
- Pitchaya Wanleenuwat
- Department of Neurology, Poznan University of Medical Sciences , Poznan , Poland
| | - Piotr Iwanowski
- Department of Neurology, Poznan University of Medical Sciences , Poznan , Poland
| | - Wojciech Kozubski
- Department of Neurology, Poznan University of Medical Sciences , Poznan , Poland
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6
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Lee JS, Kim S, Yoo H, Park S, Jang YK, Kim HJ, Kim KW, Kim Y, Jang H, Park KC, Yaffe K, Yang JJ, Lee JM, Na DL, Seo SW. Trajectories of Physiological Brain Aging and Related Factors in People Aged from 20 to over-80. J Alzheimers Dis 2019; 65:1237-1246. [PMID: 30149442 DOI: 10.3233/jad-170537] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND/OBJECTIVE In this study, we investigated a long-term trajectory of brain aging (from the 20 s to over-80) in cognitively normal (CN) individuals. We further determined whether differences in sex, education years, and apolipoprotein E ε 4 status affect age-related cortical thinning. METHODS A total of 2,944 CN individuals who underwent high-resolution (3.0-Tesla) magnetic resonance imaging were included in this study. Cortical thickness was measured using a surface-based method. Multiple linear regression analyses were performed to evaluate age-related cortical thinning and related factors. RESULTS Compared to those in their 20 s/30 s, participants in their 40 s showed thinning primarily in the medial and lateral frontal and inferior parietal regions, and cortical thinning occurred across most of the cortices with increasing age. Notably, the precuneus, inferior temporal and lateral occipital regions were relatively spared until later in life. Male and lower education years were associated with greater cortical thinning with distinct regional specificity. CONCLUSION Our findings provide an important clue to understanding the mechanism of age-related cognitive decline and new strategies for preventing the acceleration of pathological brain aging.
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Affiliation(s)
- Jin San Lee
- Department of Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | - Seonwoo Kim
- Statistics and Data Center, Samsung Medical Center, Seoul, Korea
| | - Heejin Yoo
- Statistics and Data Center, Samsung Medical Center, Seoul, Korea
| | - Seongbeom Park
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Young Kyoung Jang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Hee Jin Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Ko Woon Kim
- Department of Neurology, Chonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Yeshin Kim
- Department of Neurology, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Korea
| | - Hyemin Jang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Key-Chung Park
- Department of Neurology, Kyung Hee University Hospital, Seoul, Korea
| | - Kristine Yaffe
- Departments of Psychiatry, Neurology, Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Jin-Ju Yang
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea
| | - Jong-Min Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea
| | - Duk L Na
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea.,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Sang Won Seo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea.,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea.,Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, Korea
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7
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Ørbo MC, Vangberg TR, Tande PM, Anke A, Aslaksen PM. Memory performance, global cerebral volumes and hippocampal subfield volumes in long-term survivors of Out-of-Hospital Cardiac Arrest. Resuscitation 2018; 126:21-28. [DOI: 10.1016/j.resuscitation.2018.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 02/07/2018] [Accepted: 02/13/2018] [Indexed: 10/18/2022]
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8
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Gianaros PJ, Kuan DCH, Marsland AL, Sheu LK, Hackman DA, Miller KG, Manuck SB. Community Socioeconomic Disadvantage in Midlife Relates to Cortical Morphology via Neuroendocrine and Cardiometabolic Pathways. Cereb Cortex 2018; 27:460-473. [PMID: 26498832 DOI: 10.1093/cercor/bhv233] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Residing in communities of socioeconomic disadvantage confers risk for chronic diseases and cognitive aging, as well as risk for biological factors that negatively affect brain morphology. The present study tested whether community disadvantage negatively associates with brain morphology via 2 biological factors encompassing cardiometabolic disease risk and neuroendocrine function. Participants were 448 midlife adults aged 30-54 years (236 women) who underwent structural neuroimaging to assess cortical and subcortical brain tissue morphology. Community disadvantage was indexed by US Census data geocoded to participants' residential addresses. Cardiometabolic risk was indexed by measurements of adiposity, blood pressure, glucose, insulin, and lipids. Neuroendocrine function was indexed from salivary cortisol measurements taken over 3 days, from which we computed the cortisol awakening response, area-under-the-curve, and diurnal cortisol decline. Community disadvantage was associated with reduced cortical tissue volume, cortical surface area, and cortical thickness, but not subcortical morphology. Moreover, increased cardiometabolic risk and a flatter (dysregulated) diurnal cortisol decline mediated the associations of community disadvantage and cortical gray matter volume. These effects were independent of age, sex, and individual-level socioeconomic position. The adverse risks of residing in a disadvantaged community may extend to the cerebral cortex via cardiometabolic and neuroendocrine pathways.
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Affiliation(s)
- Peter J Gianaros
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA.,Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Dora C-H Kuan
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Anna L Marsland
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Lei K Sheu
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Daniel A Hackman
- Department of Population Health Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Karissa G Miller
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Stephen B Manuck
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
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9
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Sindi S, Kåreholt I, Spulber G, Soininen H, Kivipelto M, Solomon A. Midlife Work-Related Stress is Associated with Late-Life Gray Matter Volume Atrophy. J Alzheimers Dis Rep 2017; 1:219-227. [PMID: 30480239 PMCID: PMC6159714 DOI: 10.3233/adr-170035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: Work-related stress has been associated with an increased dementia risk. However, less is known about the mechanisms that underlie these associations. Objective: The goal is to examine associations between midlife work-related stress and late-life structural brain alterations. Methods: The Cardiovascular Risk Factors, Aging, and Dementia (CAIDE) study participants were randomly selected from independent population-based surveys (mean age 50) in Finland. MRI measurements included gray matter (GM) volume, white matter lesions (WML) and medial temporal atrophy (MTA) (1st re-examination, n = 102); and GM volume, hippocampal volume, WML volume, cortical thickness, and MTA (2nd re-examination, n = 64). Work-related stress comprised a score from two questions administered in midlife. Results: Higher levels of midlife work-related stress were associated with lower GM volume (β= –0.077, p = 0.033) at the first re-examination, even after adjusting for several confounders. No significant associations were found with MTA, WML, or MRI measurements at the second re-examination. Conclusion: Previously shown associations of midlife work-related stress with dementia risk may be at least partly explained by associations with lower GM volume in late-life. The lack of associations at the second re-examination may indicate a critical time window for the effects of midlife work-related stress, and/or selective survival/participation.
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Affiliation(s)
- Shireen Sindi
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden.,Karolinska Institutet Center for Alzheimer Research, Stockholm, Sweden.,Neuroepidemiology and Ageing Research Unit, School of Public Health, Imperial College London, London, UK
| | - Ingemar Kåreholt
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden.,Institute of Gerontology, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Gabriela Spulber
- Karolinska Institutet Center for Alzheimer Research, Stockholm, Sweden
| | - Hilkka Soininen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland.,Department of Neurology, University of Eastern Finland, and Kuopio University Hospital, Kuopio, Finland
| | - Miia Kivipelto
- Karolinska Institutet Center for Alzheimer Research, Stockholm, Sweden.,Neuroepidemiology and Ageing Research Unit, School of Public Health, Imperial College London, London, UK.,Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland.,Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland.,Department of Geriatrics, Karolinska University Hospital, Stockholm, Sweden
| | - Alina Solomon
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden.,Karolinska Institutet Center for Alzheimer Research, Stockholm, Sweden.,Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland.,Department of Geriatrics, Karolinska University Hospital, Stockholm, Sweden
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10
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Sanchez-Espinosa MP, Atienza M, Cantero JL. Sleep mediates the association between homocysteine and oxidative status in mild cognitive impairment. Sci Rep 2017; 7:7719. [PMID: 28798397 PMCID: PMC5552792 DOI: 10.1038/s41598-017-08292-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 07/10/2017] [Indexed: 01/21/2023] Open
Abstract
Tremendous progress has been made over the last few years in understanding how sleep and amyloid-β (Aβ) cooperate to speed up the progression of Alzheimer's disease (AD). However, it remains unknown whether sleep deficits also interact with other risk factors that exacerbate the pathological cascade of AD. Based on evidence showing that higher levels of homocysteine (HCY) and sleep loss increase oxidative damage, we here investigate whether the relationship between HCY and total antioxidant capacity (TAC) is mediated by changes in objective sleep in healthy older (HO, N = 21) and mild cognitive impairment (MCI, N = 21) subjects. Results revealed that reduced TAC levels in MCI was significantly correlated with increased HCY, shorter sleep duration, lower sleep efficiency, and reduced volume of temporal regions. However, only the HCY-TAC association showed diagnostic value, and this relationship was mediated by poorer sleep quality in MCI patients. We further showed that HCY-related cerebral volume loss in MCI depended on the serial relationship between poorer sleep quality and lower TAC levels. These findings provide novel insights into how impaired sleep may contribute to maintain the relationship between HCY and oxidative stress in prodromal AD, and offer empirical foundations to design therapeutic interventions aimed to weaken this link.
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Affiliation(s)
- Mayely P Sanchez-Espinosa
- Laboratory of Functional Neuroscience, Spanish Network of Excellence for Research on Neurodegenerative Diseases (CIBERNED), Pablo de Olavide University, Seville, Spain
| | - Mercedes Atienza
- Laboratory of Functional Neuroscience, Spanish Network of Excellence for Research on Neurodegenerative Diseases (CIBERNED), Pablo de Olavide University, Seville, Spain
| | - Jose L Cantero
- Laboratory of Functional Neuroscience, Spanish Network of Excellence for Research on Neurodegenerative Diseases (CIBERNED), Pablo de Olavide University, Seville, Spain.
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Siepmann T, Boardman H, Bilderbeck A, Griffanti L, Kenworthy Y, Zwager C, McKean D, Francis J, Neubauer S, Yu GZ, Lewandowski AJ, Sverrisdottir YB, Leeson P. Long-term cerebral white and gray matter changes after preeclampsia. Neurology 2017; 88:1256-1264. [PMID: 28235810 PMCID: PMC5373775 DOI: 10.1212/wnl.0000000000003765] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 12/22/2016] [Indexed: 01/03/2023] Open
Abstract
Objective: To determine whether changes in cerebral structure are present after preeclampsia that may explain increased cerebrovascular risk in these women. Methods: We conducted a case control study in women between 5 and 15 years after either a preeclamptic or normotensive pregnancy. Brain MRI was performed. Analysis of white matter structure was undertaken using voxel-based segmentation of fluid-attenuation inversion recovery sequences to assess white matter lesion volume and diffusion tensor imaging to measure microstructural integrity. Voxel-based analysis of gray matter volumes was performed with adjustment for skull size. Results: Thirty-four previously preeclamptic women (aged 42.8 ± 5.1 years) and 49 controls were included. Previously preeclamptic women had reduced cortical gray matter volume (523.2 ± 30.1 vs 544.4 ± 44.7 mL, p < 0.05) and, although both groups displayed white matter lesions, changes were more extensive in previously preeclamptic women. They displayed increased temporal lobe white matter disease (lesion volume: 23.2 ± 24.9 vs 10.9 ± 15.0 μL, p < 0.05) and altered microstructural integrity (radial diffusivity: 538 ± 19 vs 526 ± 18 × 10−6 mm2/s, p < 0.01), which also extended to occipital and parietal lobes. The degree of temporal lobe white matter change in previously preeclamptic women was independent of their current cardiovascular risk profile (p < 0.05) and increased with time from index pregnancy (p < 0.05). Conclusion: A history of preeclampsia is associated with temporal lobe white matter changes and reduced cortical volume in young women, which is out of proportion to their classic cardiovascular risk profile. The severity of changes is proportional to time since pregnancy, which would be consistent with continued accumulation of damage after pregnancy.
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Affiliation(s)
- Timo Siepmann
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Henry Boardman
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Amy Bilderbeck
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Ludovica Griffanti
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Yvonne Kenworthy
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Charlotte Zwager
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - David McKean
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Jane Francis
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stefan Neubauer
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Grace Z Yu
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Adam J Lewandowski
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Yrsa Bergmann Sverrisdottir
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Paul Leeson
- From the Radcliffe Department of Medicine (T.S., H.B., Y.K., C.Z., J.F., S.N., A.J.L., P.L.), Department of Psychiatry (A.B.), Nuffield Department of Clinical Neurosciences (L.G.), Nuffield Department of Surgical Sciences (Y.B.S.), and Department of Cardiology (G.Z.Y.), University of Oxford; Department of Radiology (D.M.), Stoke Mandeville Hospital, Aylesbury, UK; and Department of Neurology (T.S.), University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
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12
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Zimmerman MA, Hutson DD, Trimmer EH, Kashyap SN, Duong JL, Murphy B, Grissom EM, Daniel JM, Lindsey SH. Long- but not short-term estradiol treatment induces renal damage in midlife ovariectomized Long-Evans rats. Am J Physiol Renal Physiol 2016; 312:F305-F311. [PMID: 28153915 DOI: 10.1152/ajprenal.00411.2016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 11/04/2016] [Accepted: 11/04/2016] [Indexed: 01/25/2023] Open
Abstract
Clinical recommendations limit menopausal hormone therapy to a few years, yet the impact of a shorter treatment duration on cardiovascular health is unknown. We hypothesized that both short- and long-term estradiol (E2) treatment exerts positive and lasting effects on blood pressure, vascular reactivity, and renal health. This study was designed to mimic midlife menopause, followed by E2 treatment, that either followed or exceeded the current clinical recommendations. Female Long-Evans retired breeders were ovariectomized (OVX) at 11 mo of age and randomized into three groups: 80-day (80d) vehicle (Veh>Veh), 40-day (40d) E2 + 40d vehicle (E2>Veh), and 80d E2 (E2>E2). In comparison to Veh>Veh, both the E2>Veh and E2>E2 groups had lower systolic blood pressure and enhanced mesenteric relaxation in response to estrogen receptor-α stimulation. Despite the reduced blood pressure, E2>E2 induced renal and cardiac hypertrophy, reduced glomerular filtration, and increased proteinuria. Interestingly, kidneys from E2>Veh rats had significantly fewer tubular casts than both of the other groups. In conclusion, long-term E2 lowered blood pressure but exerted detrimental effects on kidney health in midlife OVX Long-Evans rats, whereas short-term E2 lowered blood pressure and reduced renal damage. These findings highlight that the duration of hormone therapy may be an important factor for renal health in aging postmenopausal women.
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Affiliation(s)
| | - Dillion D Hutson
- Department of Pharmacology, Tulane University, New Orleans, Louisiana
| | - Emma H Trimmer
- Department of Pharmacology, Tulane University, New Orleans, Louisiana
| | - Shreya N Kashyap
- Department of Pharmacology, Tulane University, New Orleans, Louisiana.,Tulane Brain Institute, New Orleans, Louisiana
| | - Jennifer L Duong
- Department of Pharmacology, Tulane University, New Orleans, Louisiana
| | - Brennah Murphy
- Department of Pharmacology, Tulane University, New Orleans, Louisiana.,Tulane Brain Institute, New Orleans, Louisiana
| | - Elin M Grissom
- Department of Psychology, Tulane University, New Orleans, Louisiana; and.,Tulane Brain Institute, New Orleans, Louisiana
| | - Jill M Daniel
- Department of Psychology, Tulane University, New Orleans, Louisiana; and.,Tulane Brain Institute, New Orleans, Louisiana
| | - Sarah H Lindsey
- Department of Pharmacology, Tulane University, New Orleans, Louisiana; .,Tulane Brain Institute, New Orleans, Louisiana
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13
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Sowa P, Bjørnerud A, Nygaard GO, Damangir S, Spulber G, Celius EG, Due-Tønnessen P, Harbo HF, Beyer MK. Reduced perfusion in white matter lesions in multiple sclerosis. Eur J Radiol 2015; 84:2605-12. [PMID: 26391230 DOI: 10.1016/j.ejrad.2015.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/14/2015] [Accepted: 09/08/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To investigate dynamic susceptibility contrast (DSC) perfusion weighted imaging (PWI) in white matter lesions (WML) in patients with multiple sclerosis (MS), using automatically generated binary masks of brain tissue. BACKGROUND WML in MS have in some studies demonstrated perfusion abnormalities compared to normal appearing white matter (NAWM), however perfusion changes in WML in MS have in general not been well documented. METHODS DSC PWI was performed at 1.5 Tesla in 69 newly diagnosed MS patients. Parametric perfusion maps representing cerebral blood volume (CBV), cerebral blood flow (CBF) and mean transit time (MTT) were obtained. Binary masks of WML, white matter (WM) and grey matter (GM) were automatically generated and co-registered to the perfusion maps. The WML mask was manually edited and modified to correct for errors in the automatic lesion detection. Perfusion parameters were derived both from WML and NAWM using the manually modified WML mask, and using the original non-modified WML mask (with and without GM exclusion mask). Differences in perfusion measures between WML and NAWM were analyzed. RESULTS CBF was significantly lower (p<0.001) and MTT significantly higher (p<0.001) in WML compared to NAWM. CBV did not show significant difference between WML and NAWM. The non-modified WML mask gave similar results as manually modified WML mask if the GM exclusion mask was used in the analysis. CONCLUSIONS DSC PWI revealed lower CBF and higher MTT, consistent with reduced perfusion, in WML compared to NAWM in patients with early MS. Automatically generated binary masks are a promising tool in perfusion analysis of WML.
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Affiliation(s)
- Piotr Sowa
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Atle Bjørnerud
- Intervention Center, Oslo University Hospital, Oslo, Norway; Department of Physics, University of Oslo, Oslo, Norway.
| | - Gro O Nygaard
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Neurology, Oslo University Hospital, Oslo, Norway.
| | - Soheil Damangir
- Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Stockholm, Sweden.
| | - Gabriela Spulber
- Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Stockholm, Sweden.
| | - Elisabeth G Celius
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Neurology, Oslo University Hospital, Oslo, Norway.
| | - Paulina Due-Tønnessen
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Hanne F Harbo
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Neurology, Oslo University Hospital, Oslo, Norway.
| | - Mona K Beyer
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway; Department of Life Sciences and Health, Oslo and Akershus University College of Applied Sciences, Oslo, Norway.
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