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cognition in multiple sclerosis

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https://www.readbyqxmd.com/read/28098510/dt-mri-microstructural-cortical-lesion-damage-does-not-explain-cognitive-impairment-in-ms
#1
Paolo Preziosa, Elisabetta Pagani, Maria E Morelli, Massimiliano Copetti, Vittorio Martinelli, Fiammetta Pirro, Andrea Falini, Giancarlo Comi, Massimo Filippi, Maria A Rocca
OBJECTIVE: We combined double inversion recovery (DIR) and diffusion tensor (DT) magnetic resonance imaging (MRI) to quantify the severity of cortical lesion (CL) microstructural tissue abnormalities in a large cohort of relapse-onset multiple sclerosis (MS) patients and its contribution to cognitive dysfunction. METHODS: DIR, DT, dual-echo, and three-dimensional (3D) T1-weighted scans were acquired from 149 MS patients and 40 controls. Cognitively impaired (CI) patients had ⩾2 abnormal neuropsychological tests...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28095425/relationship-between-clinical-parameters-and-brain-structure-in-sporadic-amyotrophic-lateral-sclerosis-patients-according-to-onset-type-a-voxel-based-morphometric-study
#2
Hee-Jin Kim, Mony de Leon, Xiuyuan Wang, Hyun Young Kim, Young-Jun Lee, Yeon-Ha Kim, Seung Hyun Kim
BACKGROUND AND PURPOSE: Amyotrophic lateral sclerosis (ALS) is a rapidly progressing, phenotypically heterogeneous neurodegenerative disease affecting mainly the motor neuron system. The present voxel-based morphometry (VBM) study investigated whether patterns of brain atrophy differ among sporadic ALS subtypes. MATERIAL AND METHODS: Sporadic ALS patients (n = 62) with normal cognition and age-matched healthy controls (n = 57) were included in the study. ALS patients were divided into limb- and bulbar-onset groups according to clinical manifestations at symptom onset (n = 48 and 14, respectively)...
2017: PloS One
https://www.readbyqxmd.com/read/28093823/sleep-and-its-associations-with-perceived-and-objective-cognitive-impairment-in-individuals-with-multiple-sclerosis
#3
Abbey J Hughes, Brett A Parmenter, Jodie K Haselkorn, Jesus F Lovera, Dennis Bourdette, Eilis Boudreau, Michelle H Cameron, Aaron P Turner
Problems with sleep and cognitive impairment are common among people with multiple sclerosis (MS). The present study examined the relationship between self-reported sleep and both objective and perceived cognitive impairment in MS. Data were obtained from the baseline assessment of a multi-centre intervention trial (NCT00841321). Participants were 121 individuals with MS. Nearly half (49%) of participants met the criteria for objective cognitive impairment; however, cognitively impaired and unimpaired participants did not differ on any self-reported sleep measures...
January 17, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28093707/meaning-of-self-in-multiple-sclerosis-implications-for-treatment-and-rehabilitation
#4
Maciej Wilski, Tomasz Tasiemski
Low participation of multiple sclerosis (MS) patients in the therapeutic process is considered a primary area in research on the management of this condition. One of the key research directions is the role of self and self-involvement in MS patients. Clinical symptoms of MS and unpredictability of this condition may affect patients' attitude to their self and self-involvement. Self-image and self-appraisal of one's abilities to cope with the disease exert significant effects not only on patient's emotional status but also on their behavior...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28080262/processing-speed-test-validation-of-a-self-administered-ipad-%C3%A2-based-tool-for-screening-cognitive-dysfunction-in-a-clinic-setting
#5
Stephen M Rao, Genna Losinski, Lyla Mourany, David Schindler, Bernadett Mamone, Christine Reece, Danielle Kemeny, Sridar Narayanan, Deborah M Miller, Francois Bethoux, Robert A Bermel, Richard Rudick, Jay Alberts
BACKGROUND: Cognitive dysfunction is common in multiple sclerosis (MS) patients and has important consequences for daily activities, yet, unlike motor function, is not routinely assessed in the clinic setting. We developed the Processing Speed Test (PST), a self-administered iPad(®)-based tool to measure MS-related deficits in processing speed. OBJECTIVE: To determine whether the PST is valid for screening cognitive dysfunction by comparing it to the paper-and-pencil Symbol Digit Modalities Test (SDMT)...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28078569/the-computer-based-symbol-digit-modalities-test-establishing-age-expected-performance-in-healthy-controls-and-evaluation-of-pediatric-ms-patients
#6
Sandra Bigi, R A Marrie, C Till, E A Yeh, N Akbar, A Feinstein, B L Banwell
Decreased information processing speed (IPS) is frequently reported in pediatric multiple sclerosis (MS) patients. The computerized version of the Symbol Digit Modalities Test (c-SDMT) measures IPS over eight consecutive trials per session and additionally captures changes in performance within the session. Here, we establish normative c-SDMT performance and test-retest reliability in healthy children (HC) and explore differences in the overall c-SDMT-performance between HC and MS patients. This cross-sectional study included 478 HC (237 female, 49...
January 11, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28077166/threonine-175-a-novel-pathological-phosphorylation-site-on-tau-protein-linked-to-multiple-tauopathies
#7
Alexander J Moszczynski, Wencheng Yang, Robert Hammond, Lee Cyn Ang, Michael J Strong
Microtubule associated protein tau (tau) deposition is associated with a spectrum of neurodegenerative diseases collectively termed tauopathies. We have previously shown that amyotrophic lateral sclerosis (ALS) with cognitive impairment (ALSci) is associated with tau phosphorylation at Thr(175) and that this leads to activation of GSK3β which then induces phosphorylation at tau Thr(231). This latter step leads to dissociation of tau from microtubules and pathological tau fibril formation. To determine the extent to which this pathway is unique to ALS, we have investigated the expression of pThr(175) tau and pThr(231) tau across a range of frontotemporal degenerations...
January 11, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28072907/symptomatic-treatments-for-amyotrophic-lateral-sclerosis-motor-neuron-disease
#8
REVIEW
Louisa Ng, Fary Khan, Carolyn A Young, Mary Galea
BACKGROUND: Motor neuron disease (MND), which is also known as amyotrophic lateral sclerosis (ALS), causes a wide range of symptoms but the evidence base for the effectiveness of the symptomatic treatment therapies is limited. OBJECTIVES: To summarise the evidence from Cochrane Systematic Reviews of all symptomatic treatments for MND. METHODS: We searched the Cochrane Database of Systematic Reviews (CDSR) on 15 November 2016 for systematic reviews of symptomatic treatments for MND...
January 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28069095/deficits-in-social-cognition-an-unveiled-signature-of-multiple-sclerosis
#9
Moussa A Chalah, Samar S Ayache
BACKGROUND AND OBJECTIVES: Multiple sclerosis (MS) is a chronic progressive inflammatory disease of the central nervous system, representing the primary cause of non-traumatic disability in young adults. Cognitive dysfunction can affect patients at any time during the disease process and might alter the six core functional domains. Social cognition is a multi-component construct that includes the theory of mind, empathy and social perception of emotions from facial, bodily and vocal cues...
January 10, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28067603/protective-personality-traits-high-openness-and-low-neuroticism-linked-to-better-memory-in-multiple-sclerosis
#10
Victoria M Leavitt, Korhan Buyukturkoglu, Matilde Inglese, James F Sumowski
BACKGROUND: Memory impairment in multiple sclerosis (MS) is common, although few risk/protective factors are known. OBJECTIVE: To examine relationships of personality to memory/non-memory cognition in MS. METHOD: 80 patients completed a cognitive battery and a personality scale measuring the "Big 5" traits: openness, neuroticism, agreeableness, extraversion, and conscientiousness. RESULTS: Memory was most related to openness, with higher openness linked to better memory and lower risk for memory impairment, controlling for age, atrophy, education, and intelligence quotient (IQ)...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28063597/living-near-major-roads-and-the-incidence-of-dementia-parkinson-s-disease-and-multiple-sclerosis-a-population-based-cohort-study
#11
Hong Chen, Jeffrey C Kwong, Ray Copes, Karen Tu, Paul J Villeneuve, Aaron van Donkelaar, Perry Hystad, Randall V Martin, Brian J Murray, Barry Jessiman, Andrew S Wilton, Alexander Kopp, Richard T Burnett
BACKGROUND: Emerging evidence suggests that living near major roads might adversely affect cognition. However, little is known about its relationship with the incidence of dementia, Parkinson's disease, and multiple sclerosis. We aimed to investigate the association between residential proximity to major roadways and the incidence of these three neurological diseases in Ontario, Canada. METHODS: In this population-based cohort study, we assembled two population-based cohorts including all adults aged 20-50 years (about 4·4 million; multiple sclerosis cohort) and all adults aged 55-85 years (about 2·2 million; dementia or Parkinson's disease cohort) who resided in Ontario, Canada on April 1, 2001...
January 4, 2017: Lancet
https://www.readbyqxmd.com/read/28061362/developing-easy-to-perform-routine-mri-measurements-as-potential-surrogates-for-cognitive-impairment-in-ms
#12
Sarah A Morrow, Suresh Menon, Heather Rosehart, Manas Sharma
OBJECTIVES: One of the most frequently disabling symptoms in Multiple Sclerosis (MS) is cognitive impairment which is often insidious in onset and therefore difficult to recognize in the early stages, for both persons with MS and clinicians. A biomarker that would help identify those at risk of cognitive impairment, or with only mild impairment, would be a useful tool for clinicians. Using MRI, already an integral tool in the diagnosis and monitoring of disease activity in MS, would be ideal...
December 29, 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28054824/beyond-binary-exploring-the-merits-of-three-depression-groups-in-multiple-sclerosis
#13
Margaret H Cadden, Jessica E Meyer, Peter A Arnett
OBJECTIVE: Depression has been traditionally explored in the context of multiple sclerosis (MS) as a binary construct (depressed, not depressed). However, given the 50% lifetime prevalence rate of depression in MS, it may be useful to consider not only currently depressed versus nondepressed patients, but to evaluate groups that better characterize the complexity of MS depression. The objective of the current study was to examine demographic, cognitive, illness, and psychosocial variables thought to associate with depression in MS across 3 groups: currently depressed, remitted depression, and never been depressed...
January 5, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28050344/structural-networks-involved-in-attention-and-executive-functions-in-multiple-sclerosis
#14
Sara Llufriu, Eloy Martinez-Heras, Elisabeth Solana, Nuria Sola-Valls, Maria Sepulveda, Yolanda Blanco, Elena H Martinez-Lapiscina, Magi Andorra, Pablo Villoslada, Alberto Prats-Galino, Albert Saiz
Attention and executive deficits are disabling symptoms in multiple sclerosis (MS) that have been related to disconnection mechanisms. We aimed to investigate changes in structural connectivity in MS and their association with attention and executive performance applying an improved framework that combines high order probabilistic tractography and anatomical exclusion criteria postprocessing. We compared graph theory metrics of structural networks and fractional anisotropy (FA) of white matter (WM) connections or edges between 72 MS subjects and 38 healthy volunteers (HV) and assessed their correlation with cognition...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28044398/examining-the-validity-and-sensitivity-to-change-of-the-5-and-10-sit-to-stand-tests-in-people-with-multiple-sclerosis
#15
Ylva Nilsagård, Malin Andreasson, Anna Carling, Helena Vesterlin
BACKGROUND AND PURPOSE: Sit-to-stand transfers are frequently performed, and transfers have been associated with fall risk among people with multiple sclerosis (PwMS). There is limited research regarding the validity of sit-to-stand tests (STSs) in PwMS. The purpose of this study was to investigate the concurrent, divergent, and discriminant validity and sensitivity to change of the 5 and 10 STSs. METHODS: A repeated-measurement design was used, with data collected before and directly after a 7-week intervention, as well as prospectively reported near-fall incidents and falls during a 14-week period...
January 3, 2017: Physiotherapy Research International: the Journal for Researchers and Clinicians in Physical Therapy
https://www.readbyqxmd.com/read/28039320/modulation-of-cortical-excitability-to-normalise-brain-function-and-improve-cognition-in-multiple-sclerosis
#16
EDITORIAL
Maria A Rocca, Massimo Filippi
No abstract text is available yet for this article.
December 30, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28035997/contribution-of-gray-and-white-matter-abnormalities-to-cognitive-impairment-in-multiple-sclerosis
#17
Xiaofei Zhang, Fangfang Zhang, Dehui Huang, Lei Wu, Lin Ma, Hua Liu, Yujun Zhao, Shengyuan Yu, Jiong Shi
Patients with multiple sclerosis (MS) commonly exhibit cognitive impairments (CI). However, the neural mechanisms underlying CI remain unclear. The current study applied diffusion tensor imaging (DTI) and voxel-based morphometric (VBM) magnetic resonance imaging (MRI) techniques to evaluate differences in white matter (WM) integrity and gray matter (GM) volume between MS patients with CI and MS patients with cognitive preservation (CP). Neuropsychological assessment and MRI were obtained from 39 relapsing-remitting MS (RRMS) patients and 29 healthy controls (HCs)...
December 27, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28035846/employment-and-absenteeism-in-working-age-persons-with-multiple-sclerosis
#18
Amber Salter, Nina Thomas, Tuula Tyry, Gary Cutter, Ruth Ann Marrie
AIMS: To better understand the impact of the clinical course of multiple sclerosis (MS) and disability on employment, absenteeism, and related factors. MATERIALS AND METHODS: We included respondents to the North American Research Committee on Multiple Sclerosis Registry spring 2015 update survey who were United States or Canadian residents, aged 18-65 years and reported having relapsing-remitting MS (RRMS), secondary progressive MS (SPMS), or primary progressive MS (PPMS)...
December 30, 2016: Journal of Medical Economics
https://www.readbyqxmd.com/read/28034792/glutathione-in-the-human-brain-review-of-its-roles-and-measurement-by-magnetic-resonance-spectroscopy
#19
Caroline D Rae, Stephen R Williams
We review the transport, synthesis and catabolism of glutathione in the brain as well as its compartmentation and biochemistry in different brain cells. The major reactions involving glutathione are reviewed and the factors limiting its availability in brain cells are discussed. We also describe and critique current methods for measuring glutathione in the human brain using magnetic resonance spectroscopy, and review the literature on glutathione measurements in healthy brains and in neurological, psychiatric, neurodegenerative and neurodevelopmental conditions In summary: Healthy human brain glutathione concentration is ∼1-2 mM, but it varies by brain region, with evidence of gender differences and age effects; in neurological disease glutathione appears reduced in multiple sclerosis, motor neurone disease and epilepsy, while being increased in meningiomas; in psychiatric disease the picture is complex and confounded by methodological differences, regional effects, length of disease and drug-treatment...
December 26, 2016: Analytical Biochemistry
https://www.readbyqxmd.com/read/28029270/intervening-to-reduce-the-risk-of-future-disability-from-multiple-sclerosis-are-we-there-yet
#20
Maurice Dahdaleh, Raed Alroughani, Mohammed Aljumah, Abdulrahman AlTahan, Issa Alsharoqi, Saeed A Bohlega, Abdulkader Daif, Dirk Deleu, Jihad Inshasi, Rana Karabudak, Mohammed A Sahraian, Karim Taha, Bassem I Yammout, Magd Zakaria
Disease-modifying therapies (DMTs) delay or may prevent the progression of patients with high-risk clinically isolated syndrome (CIS) to clinically definite multiple sclerosis (MS), and from relapsing-remitting MS to secondary progressive MS. Current evidence on the effects of DMT on disability in MS is supported by the use of the Expanded Disability Status Scale (EDSS), which is dominated by ambulation, and usually used as a secondary outcome measure. Less is known about the long-term effects of DMTs on other aspects of functional status, particularly cognition, which is a key determinant of ability to work...
December 28, 2016: International Journal of Neuroscience
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