610 results found
Zarei M, Patenaude B, Damoiseaux J, et al., 2010, Combining shape and connectivity analysis: An MRI study of thalamic degeneration in Alzheimer's disease, NEUROIMAGE, Vol: 49, Pages: 1-8, ISSN: 1053-8119
Nalbantian S, Matthews PM, McClelland JL, 2010, The Memory Process, Publisher: Mit Pr, ISBN: 9780262014571
The convergence of neuroscience, philosophy, art, music, and literature offers valuablenew insights into the study of memory.
Owen DR, Howell OW, Tang SP, et al., 2010, Two binding sites for [3H]PBR28 in human brain: implications for TSPO PET imaging of neuroinflammation, J Cereb Blood Flow Metab, Vol: 30, Pages: 1608-1618, ISSN: 1559-7016
[(11)C]PBR28, a radioligand targeting the translocator protein (TSPO), does not produce a specific binding signal in approximately 14% of healthy volunteers. This phenomenon has not been reported for [(11)C]PK11195, another TSPO radioligand. We measured the specific binding signals with [(3)H]PK11195 and [(3)H]PBR28 in brain tissue from 22 donors. Overall, 23% of the samples did not generate a visually detectable specific autoradiographic signal with [(3)H]PBR28, although all samples showed [(3)H]PK11195 binding. There was a marked reduction in the affinity of [(3)H]PBR28 for TSPO in samples with no visible [(3)H]PBR28 autoradiographic signal (K(i)=188+/-15.6 nmol/L), relative to those showing normal signal (K(i)=3.4+/-0.5 nmol/L, P<0.001). Of this latter group, [(3)H]PBR28 bound with a two-site fit in 40% of cases, with affinities (K(i)) of 4.0+/-2.4 nmol/L (high-affinity site) and 313+/-77 nmol/L (low-affinity site). There was no difference in K(d) or B(max) for [(3)H]PK11195 in samples showing no [(3)H]PBR28 autoradiographic signal relative to those showing normal [(3)H]PBR28 autoradiographic signal. [(3)H]PK11195 bound with a single site for all samples. The existence of three different binding patterns with PBR28 (high-affinity binding (46%), low-affinity binding (23%), and two-site binding (31%)) suggests that a reduction in [(11)C]PBR28 binding may not be interpreted simply as a reduction in TSPO density. The functional significance of differences in binding characteristics warrants further investigation.
Voets NL, Adcock JE, Stacey R, et al., 2009, Functional and Structural Changes in the Memory Network Associated with Left Temporal Lobe Epilepsy, HUMAN BRAIN MAPPING, Vol: 30, Pages: 4070-4081, ISSN: 1065-9471
Tomassini V, Johansen-Berg H, Leonardi L, et al., 2009, MOTOR SKILL LEARNING IN MULTIPLE SCLEROSIS, Joint Annual Meeting of the Association-of-British-Neurologists/Spanish-Society-of-Neurology, Publisher: BMJ PUBLISHING GROUP, ISSN: 0022-3050
Matthews PM, Comley R, 2009, Advances in the molecular imaging of multiple sclerosis, EXPERT REVIEW OF CLINICAL IMMUNOLOGY, Vol: 5, Pages: 765-777, ISSN: 1744-666X
Matthews PM, 2009, Pharmacological applications of fMRI, ISBN: 9781603279185
Modern drug development presents new challenges by the unmet medical needs of chronic neurological and psychiatric disease. Imaging provides a potentially powerful tool for more efficiently translating pre-clinical and clinical studies and enhancing confidence in progression through early phase clinical development. Pharmacological MRI (phMRI) refers specifically to the applications of fMRI methods for direct or indirect measures of drug action. phMRI can be coupled to advanced structural methods to relate pharmacological effects and functional anatomy. Current and potential applications of phMRI to target stratification, patient validation, and pharmacodynamic studies are described. While great new opportunities could arise from extension of these methods as surrogate markers of clinical responses, this review highlights the substantial additional work that would need to be done to make this feasible. The review concludes that there is a strong rational for investment in phMRI for early phase clinical development, but that the short- to medium-term impact on late phase clinical development likely will be modest. © 2009 Humana Press.
Zarei M, Menke RA, Scholz J, et al., 2009, Multimodal MR imaging of substantia nigra in Parkinson's disease, 19th World Congress of Neurology, Publisher: ELSEVIER SCIENCE BV, Pages: S293-S293, ISSN: 0022-510X
Stagg CJ, O'Shea J, Kincses ZT, et al., 2009, Modulation of movement-associated cortical activation by transcranial direct current stimulation, EUROPEAN JOURNAL OF NEUROSCIENCE, Vol: 30, Pages: 1412-1423, ISSN: 0953-816X
Douaud G, Mackay C, Andersson J, et al., 2009, Schizophrenia delays and alters maturation of the brain in adolescence, BRAIN, Vol: 132, Pages: 2437-2448, ISSN: 0006-8950
Menke RA, Scholz J, Miller KL, et al., 2009, MRI characteristics of the substantia nigra in Parkinson's disease: A combined quantitative T1 and DTI study, NEUROIMAGE, Vol: 47, Pages: 435-441, ISSN: 1053-8119
Rocca MA, Absinta M, Valsasina P, et al., 2009, Abnormal Connectivity of the Sensorimotor Network in Patients With MS: A MultiCenter fMRI Study, HUMAN BRAIN MAPPING, Vol: 30, Pages: 2412-2425, ISSN: 1065-9471
Cader S, Palace J, Matthews PM, 2009, Cholinergic agonism alters cognitive processing and enhances brain functional connectivity in patients with multiple sclerosis, JOURNAL OF PSYCHOPHARMACOLOGY, Vol: 23, Pages: 686-696, ISSN: 0269-8811
Inkster B, Nichols TE, Saemann PG, et al., 2009, Association of GSK3 beta Polymorphisms With Brain Structural Changes in Major Depressive Disorder, ARCHIVES OF GENERAL PSYCHIATRY, Vol: 66, Pages: 721-728, ISSN: 0003-990X
De Jager PL, Jia X, Wang J, et al., 2009, Meta-analysis of genome scans and replication identify CD6, IRF8 and TNFRSF1A as new multiple sclerosis susceptibility loci, NATURE GENETICS, Vol: 41, Pages: 776-U26, ISSN: 1061-4036
Enzinger C, Dawes H, Johansen-Berg H, et al., 2009, Brain Activity Changes Associated With Treadmill Training After Stroke, STROKE, Vol: 40, Pages: 2460-2467, ISSN: 0039-2499
Stagg CJ, Wylezinska M, Matthews PM, et al., 2009, Neurochemical Effects of Theta Burst Stimulation as Assessed by Magnetic Resonance Spectroscopy, JOURNAL OF NEUROPHYSIOLOGY, Vol: 101, Pages: 2872-2877, ISSN: 0022-3077
Filippi M, Rocca MA, Absinta M, et al., 2009, Functional connectivity changes of the motor network in patients with multiple sclerosis: a multi-centre fMRI study, 19th Meeting of the European-Neurological-Society, Publisher: DR DIETRICH STEINKOPFF VERLAG, Pages: S47-S48, ISSN: 0340-5354
Filippini N, MacIntosh BJ, Hough MG, et al., 2009, Distinct patterns of brain activity in young carriers of the APOE-epsilon 4 allele, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Vol: 106, Pages: 7209-7214, ISSN: 0027-8424
Stagg CJ, Best JG, Stephenson MC, et al., 2009, Polarity-Sensitive Modulation of Cortical Neurotransmitters by Transcranial Stimulation, JOURNAL OF NEUROSCIENCE, Vol: 29, Pages: 5202-5206, ISSN: 0270-6474
Mancini L, Ciccarelli O, Manfredonia F, et al., 2009, Short-term adaptation to a simple motor task: A physiological process preserved in multiple sclerosis, NEUROIMAGE, Vol: 45, Pages: 500-511, ISSN: 1053-8119
Lin X, Song K, Lim N, et al., 2009, Risk prediction of prevalent diabetes in a Swiss population using a weighted genetic score-the CoLaus Study, DIABETOLOGIA, Vol: 52, Pages: 600-608, ISSN: 0012-186X
Baranzini SE, Galwey NW, Wang J, et al., 2009, Pathway and network-based analysis of genome-wide association studies in multiple sclerosis, HUMAN MOLECULAR GENETICS, Vol: 18, Pages: 2078-2090, ISSN: 0964-6906
Genome-wide association studies (GWAS) testing several hundred thousand SNPs have been performed inmultiple sclerosis (MS) and other complex diseases. Typically, the number of markers in which the evidencefor association exceeds the genome-wide significance threshold is very small, and markers that do notexceed this threshold are generally neglected. Classical statistical analysis of these datasets in MS revealedgenes with known immunological functions. However, many of the markers showing modest associationmay represent false negatives. We hypothesize that certain combinations of genes flagged by these markerscan be identified if they belong to a common biological pathway. Here we conduct a pathway-oriented analysisof two GWAS in MS that takes into account all SNPs with nominal evidence of association (P<0.05). Gene-wiseP-values were superimposed on a human protein interaction network and searches were conducted to identifysub-networks containing a higher proportion of genes associated with MS than expected by chance. Thesesub-networks, and others generated at random as a control, were categorized for membership of biologicalpathways. GWAS from eight other diseases were analyzed to assess the specificity of the pathways identified.In the MS datasets, we identified sub-networks of genes from several immunological pathways including celladhesion, communication and signaling. Remarkably, neural pathways, namely axon-guidance and synapticpotentiation, were also over-represented in MS. In addition to the immunological pathways previously ident-ified, we report here for the first time the potential involvement of neural pathways in MS susceptibility.
Zarei M, Damoiseaux JS, Morgese C, et al., 2009, Regional White Matter Integrity Differentiates Between Vascular Dementia and Alzheimer Disease, STROKE, Vol: 40, Pages: 773-779, ISSN: 0039-2499
Bendfeldt K, Kuster P, Traud S, et al., 2009, Association of regional gray matter volume loss and progression of white matter lesions in multiple sclerosis - A longitudinal voxel-based morphometry study, NEUROIMAGE, Vol: 45, Pages: 60-67, ISSN: 1053-8119
Baranzini SE, Wang J, Gibson RA, et al., 2009, Genome-wide association analysis of susceptibility and clinical phenotype in multiple sclerosis, HUMAN MOLECULAR GENETICS, Vol: 18, Pages: 767-778, ISSN: 0964-6906
Matthews PM, 2009, Brain Imaging of Multiple Sclerosis: the Next 10 Years, NEUROIMAGING CLINICS OF NORTH AMERICA, Vol: 19, Pages: 101-+, ISSN: 1052-5149
Filippini N, Rao A, Wetten S, et al., 2009, Anatomically-distinct genetic associations of APOE epsilon 4 allele load with regional cortical atrophy in Alzheimer's disease, NEUROIMAGE, Vol: 44, Pages: 724-728, ISSN: 1053-8119
Ciccarelli O, Behrens TE, Johansen-Berg H, et al., 2009, Investigation of White Matter Pathology in ALS and PLS Using Tract-Based Spatial Statistics, HUMAN BRAIN MAPPING, Vol: 30, Pages: 615-624, ISSN: 1065-9471
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