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cerebral atrophy

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https://www.readbyqxmd.com/read/27920431/cerebral-blood-flow-blood-supply-and-cognition-in-type-2-diabetes-mellitus
#1
Jacobus F A Jansen, Frank C G van Bussel, Harm J van de Haar, Matthias J P van Osch, Paul A M Hofman, Martin P J van Boxtel, Robert J van Oostenbrugge, Miranda T Schram, Coen D A Stehouwer, Joachim E Wildberger, Walter H Backes
We investigated whether type 2 diabetes (T2DM) and the presence of cognitive impairment are associated with altered cerebral blood flow (CBF). Forty-one participants with and thirty-nine without T2DM underwent 3-Tesla MRI, including a quantitative technique measuring (macrovascular) blood flow in the internal carotid artery and an arterial spin labeling technique measuring (microvascular) perfusion in the grey matter (GM). Three analysis methods were used to quantify the CBF: a region of interest analysis, a voxel-based statistical parametric mapping technique, and a 'distributed deviating voxels' method...
December 2016: Scientific Reports
https://www.readbyqxmd.com/read/27919482/the-association-of-cognitive-impairment-with-gray-matter-atrophy-and-cortical-lesion-load-in-clinically-isolated-syndrome
#2
Sevda Diker, Arzu Ceylan Has, Aslı Kurne, Rahşan Göçmen, Kader Karlı Oğuz, Rana Karabudak
BACKGROUND: Multiple sclerosis can impair cognition from the early stages and has been shown to be associated with gray matter damage in addition to white matter pathology. OBJECTIVES: To investigate the profile of cognitive impairment in clinically isolated syndrome (CIS), and the contribution of cortical inflammation, cortical and deep gray matter atrophy, and white matter lesions to cognitive decline. METHODS: Thirty patients with clinically isolated syndrome and twenty demographically- matched healthy controls underwent neuropsychologic assessment through the Rao Brief Repeatable Battery, and brain magnetic resonance imaging with double inversion recovery using a 3T scanner...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27916860/novel-pigt-variant-in-two-brothers-expansion-of-the-multiple-congenital-anomalies-hypotonia-seizures-syndrome-3-phenotype
#3
Nadia Skauli, Sean Wallace, Samuel C C Chiang, Tuva Barøy, Asbjørn Holmgren, Asbjørg Stray-Pedersen, Yenan T Bryceson, Petter Strømme, Eirik Frengen, Doriana Misceo
Biallelic PIGT variants were previously reported in seven patients from three families with Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 3 (MCAHS3), characterized by epileptic encephalopathy, hypotonia, global developmental delay/intellectual disability, cerebral and cerebellar atrophy, craniofacial dysmorphisms, and skeletal, ophthalmological, cardiac, and genitourinary abnormalities. We report a novel homozygous PIGT missense variant c.1079G>T (p.Gly360Val) in two brothers with several of the typical features of MCAHS3, but in addition, pyramidal tract neurological signs...
November 29, 2016: Genes
https://www.readbyqxmd.com/read/27916672/famous-faces-and-voices-differential-profiles-in-early-right-and-left-semantic-dementia-and-in-alzheimer-s-disease
#4
Simona Luzzi, Sara Baldinelli, Valentina Ranaldi, Katia Fabi, Viviana Cafazzo, Fabio Fringuelli, Mauro Silvestrini, Leandro Provinciali, Carlo Reverberi, Guido Gainotti
BACKGROUND: Famous face and voice recognition is reported to be impaired both in semantic dementia (SD) and in Alzheimer's Disease (AD), although more severely in the former. In AD a coexistence of perceptual impairment in face and voice processing has also been reported and this could contribute to the altered performance in complex semantic tasks. On the other hand, in SD both face and voice recognition disorders could be related to the prevalence of atrophy in the right temporal lobe (RTL)...
December 1, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27913587/suppressing-n-acetyl-l-aspartate-naa-synthesis-prevents-loss-of-neurons-in-a-murine-model-of-canavan-leukodystrophy
#5
Jiho Sohn, Peter Bannerman, Fuzheng Guo, Travis Burns, Laird Miers, Christopher Croteau, Naveen K Singhal, Jennifer A McDonough, David Pleasure
Canavan disease is a leukodystrophy caused by aspartoacylase (ASPA) deficiency. The lack of functional ASPA, an enzyme enriched in oligodendroglia that cleaves N-acetyl-L-aspartate (NAA) to acetate and L-aspartic acid, elevates brain NAA and causes "spongiform" vacuolation of superficial brain white matter and neighboring gray matter. In children with Canavan disease, neuroimaging shows early-onset dysmyelination and progressive brain atrophy. Neuron loss has been documented at autopsy in some cases. Prior studies have shown that mice homozygous for the Aspa nonsense mutation Nur7 also develop brain vacuolation...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27898404/prolonged-fasting-improves-endothelial-progenitor-cell-mediated-ischemic-angiogenesis-in-mice
#6
Bao Xin, Chun-Long Liu, Hong Yang, Cheng Peng, Xiao-Hui Dong, Chuan Zhang, Alex F Chen, He-Hui Xie
BACKGROUND/AIMS: Prolonged fasting (PF) was shown to be of great potency to promote optimal health and reduce the risk of many chronic diseases. This study sought to determine the effect of PF on the endothelial progenitor cell (EPC)-mediated angiogenesis in the ischemic brain and cerebral ischemic injury in mice. METHODS: Mice were subjected to PF or periodic PF after cerebral ischemia, and histological analysis and behavioral tests were performed. Mouse EPCs were isolated and examined, and the effects of EPC transplantation on cerebral ischemic injury were investigated in mice...
November 30, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27897360/central-atrophy-early-in-multiple-sclerosis-third-ventricle-volumetry-versus-planimetry
#7
Theodor Lutz, Barbara Bellenberg, Ruth Schneider, Florian Weiler, Odo Köster, Carsten Lukas
BACKGROUND AND PURPOSE: Cerebral atrophy has been suggested to be a reliable magnetic resonance imaging (MRI) predictor of subsequent disability in all stages of multiple sclerosis (MS). However, no accepted methodology for routine clinical use exists to date. We sought an easy to apply and fast technique to evaluate cerebral ventricular volume in patients with MS with similar accuracy as a semiautomatic volumetric method. METHODS: The study included 104 patients, 61 diagnosed with MS and 43 with clinically isolated syndrome...
November 28, 2016: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/27893680/the-value-of-ezis-analysis-of-tc-99m-ecd-spect-on-identifying-cerebellar-hypoperfusion-in-a-patient-with-superficial-siderosis-a-case-report
#8
Cheng-Yu Wei, Tai-Yi Chen, Ian Shih, Pai-Yi Chiu, Guang-Uei Hung, Hiroshi Matsuda
INTRODUCTION: Brain perfusion single photon computed tomography (SPECT) is a functional imaging modality and has been widely utilized in evaluation of various kinds of neurological disorders. Easy z-score imaging system (eZIS) is a computer-assisted statistical analysis, based on the comparison with age-classified ethyl cysteinate dimer (ECD) normal database, which provides objectively interpretation of Tc-99m ECD brain perfusion SPECT.Here we presented a 64-year-old male with dizziness, spin sensation, nausea, and vomiting in the emergency room, and brain computed tomography scan showed only small hypodensity lesion in cerebellum...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27891744/inducing-speech-errors-in-dysarthria-using-tongue-twisters
#9
Heather Kember, Kathryn Connaghan, Rupal Patel
Although tongue twisters have been widely use to study speech production in healthy speakers, few studies have employed this methodology for individuals with speech impairment. The present study compared tongue twister errors produced by adults with dysarthria and age-matched healthy controls. Eight speakers (four female, four male; mean age = 54.5 years) with spastic (mixed-spastic) dysarthria of varying aetiology (cerebral palsy, multiple sclerosis, multiple system atrophy) and eight controls (four female, four male; mean age = 56...
November 27, 2016: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/27884107/association-between-changes-in-cerebral-grey-matter-volume-and-postoperative-cognitive-dysfunction-in-elderly-patients-study-protocol-for-a-prospective-observational-cohort-study
#10
Nicolai Goettel, Panagiota Mistridis, Manfred Berres, Julia Reinhardt, Christoph Stippich, Andreas U Monsch, Luzius A Steiner
BACKGROUND: Cognitive decline is frequently observed in elderly patients after major surgery. The pathophysiology of postoperative cognitive dysfunction (POCD) remains unclear. The aim of our investigation is to identify potential associations between brain volume change and POCD in elderly patients undergoing major surgery. METHODS: This is a prospective observational cohort study approved by the regional ethics board. We intend to compare specific brain volumes (hippocampus, lateral ventricle, total grey matter volume, regional cortical thickness) on magnetic resonance imaging and cognitive functions determined by a neuropsychological assessment battery in 70 study participants aged ≥65 years before and 3 and 12 months after major noncardiac surgery...
November 25, 2016: BMC Anesthesiology
https://www.readbyqxmd.com/read/27878764/the-involvement-of-supratentorial-white-matter-in-multiple-system-atrophy-a-diffusion-tensor-imaging-tractography-study
#11
Po-Shan Wang, Chien-Li Yeh, Chia-Feng Lu, Hsiu-Mei Wu, Bing-Wen Soong, Yu-Te Wu
It has been assumed that cognitive disorder and visual-spatial disturbance in multiple system atrophy of the predominantly cerebellar type (MSA-C) are attributable to degradation of cerebellar function. The purpose of this study was to use diffusion tensor imaging (DTI) tractography to determine if patients with MSA-C characterized in part by visual-spatial disorders and cognitive disorders have changes of the structural connectivity network of nerve fibers, and to further describe the structural connectivity network...
November 23, 2016: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/27871568/discrepancy-between-electroencephalography-and-hemodynamics-in-a-patient-with-cockayne-syndrome-during-general-anesthesia
#12
Masanori Tsukamoto, Takashi Hitosugi, Takeshi Yokoyama
Cockayne syndrome is a kind of progeria with autosomal chromosome recessiveness described first by Cockayne in 1936. Patients with this syndrome were characterized by retarded growth, cerebral atrophy, and mental retardation. We experienced an anesthetic management of a patient with Cockayne syndrome, who underwent dental treatment twice. The primary concern was discrepancy between electroencephalography and hemodynamics. The values of bispectral index showed a sharp fall to 1 digit and suppression ratio more than 40, while hemodynamics was stable during induction of anesthesia with sevoflurane 8%...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27865557/hypoperfusion-of-the-thalamus-is-associated-with-disability-in-relapsing-remitting-multiple-sclerosis
#13
Emilie Doche, Angèle Lecocq, Adil Maarouf, Guillaume Duhamel, Elisabeth Soulier, Sylviane Confort-Gouny, Audrey Rico, Maxime Guye, Bertrand Audoin, Jean Pelletier, Jean-Philippe Ranjeva, Wafaa Zaaraoui
BACKGROUND: While gray matter (GM) perfusion abnormalities have been evidenced in multiple sclerosis (MS) patients, the relationships with disability still remain unclear. Considering that atrophy is known to impact on perfusion, we aimed to assess perfusion abnormalities in GM of MS patients, outside atrophic regions and investigate relationships with disability. METHODS: Brain perfusion of 23 relapsing remitting MS patients and 16 matched healthy subjects were assessed at 3T using the pseudo-continuous arterial spin labeling magnetic resonance imaging technique...
November 16, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27864848/age-related-small-vessel-disease-a-potential-contributor-to-neurodegeneration-in-multiple-sclerosis
#14
REVIEW
Ruth Geraldes, Margaret M Esiri, Gabriele C DeLuca, Jacqueline Palace
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disorder of the central nervous system wherein, after an initial phase of transient neurological defects, slow neurological deterioration due to progressive neuronal loss ensues. Age is a major determinant of MS progression onset and disability. Over the past years, several mechanisms have been proposed to explain the key drivers of neurodegeneration and disability accumulation in MS. However, the effect of commonly encountered age-related cerebral vessel disease, namely small vessel disease (SVD), has been largely neglected and constitutes the aim of this review...
November 19, 2016: Brain Pathology
https://www.readbyqxmd.com/read/27863121/quantitative-evaluation-of-normal-aqueductal-cerebrospinal-fluid-flow-using-phase-contrast-cine-mri-according-to-age-and-sex
#15
Zulal Oner, Aysegul Sagir Kahraman, Evren Kose, Serkan Oner, Ahmet Kavakli, Mahmut Cay, Davut Ozbag
AIM: The aim of this study was cerebrospinal fluid (CSF) flow quantification in the cerebral aqueduct using Phase-Contrast Cine Magnetic Resonance Imaging (PCC-MRI) according to both sexes and three different age groups to obtain normative data. MATERIAL AND METHOD: 72 volunteers with no cerebral pathology were included in this study. Subjects were divided into three age groups: 20-34 years, 35-49 years and 50-65 years including equal gender groups. CSF flow's quantitatively evaluation was performed with images that were obtained by 1...
November 11, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27862654/cerebral-small-vessel-disease-medial-temporal-lobe-atrophy-and-cognitive-status-in-patients-with-ischaemic-stroke-and-transient-ischaemic-attack
#16
F Arba, T Quinn, G J Hankey, M Ali, K R Lees, D Inzitari
BACKGROUND AND PURPOSE: Small vessel disease (SVD) and Alzheimer's disease (AD) are two common causes of cognitive impairment and dementia, traditionally considered as distinct processes. The relationship between radiological features suggestive of AD and SVD was explored, and the association of each of these features with cognitive status at 1 year was investigated in patients with stroke or transient ischaemic attack. METHODS: Anonymized data were accessed from the Virtual International Stroke Trials Archive (VISTA)...
November 14, 2016: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/27858707/neural-basis-of-apathy-in-patients-with-amnestic-mild-cognitive-impairment
#17
Hiroaki Kazui, Ryuichi Takahashi, Yuki Yamamoto, Kenji Yoshiyama, Hideki Kanemoto, Yukiko Suzuki, Shunsuke Sato, Shingo Azuma, Takashi Suehiro, Eku Shimosegawa, Kazunari Ishii, Toshihisa Tanaka
BACKGROUND: Although apathy is associated with damage to the frontal and temporal lobes in Alzheimer's disease (AD), the crucial regions for apathy in patients with amnestic mild cognitive impairment (aMCI) are unknown. OBJECTIVE: To identify brain regions associated with apathy in aMCI patients. METHODS: The subjects of this study were 98 aMCI patients who were entered in our dementia registry between March 1, 2009 and April 30, 2015 and who satisfied our criteria for aMCI...
November 14, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27857918/effectiveness-of-cortical-atrophy-scale-and-indirect-indices-of-brain-atrophy-to-predict-chronic-subdural-hematoma-in-older-patients
#18
Eun-Oh Jeong, Seung-Won Choi, Jeong-Wook Lim, Hyon-Jo Kwon, Seon-Hwan Kim, Hyeon-Song Koh, Jin-Young Youm, Shi-Hun Song
OBJECTIVE: To determine whether baseline cerebral atrophy can predict the rate of future chronic subdural hematoma (CSDH) after head trauma and compare indirect markers of brain atrophy with volumetric analysis of computed tomography (CT). METHODS: Single institution case-control study involving 1,476 patients who visited our hospital after head trauma from January 2009 to December 2014. Forty-one patients with delayed CSDH were identified and age, gender matched 41 patients were selected as control group...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857800/dyke-davidoff-masson-syndrome-a-rare-cause-of-cerebral-hemiatrophy-in-children
#19
Pareshkumar A Thakkar, Reema Haresh Dave
Dyke-Davidoff-Masson syndrome (DDMS) is an uncommon condition, in which the diagnosis is mainly done by various clinical presentations along with positive radiological findings. Patients have facial asymmetry, seizures, learning difficulties, and contralateral hemiparesis. The radiological discoveries of the same incorporate cerebral hemiatrophy with homolateral hypertrophy of the skull and sinuses. Here, we report a case of a 10-year-old female child who presented with a single episode of convulsion, mental retardation, and contralateral hemiparesis...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27843694/grey-matter-abnormalities-in-methcathinone-abusers-with-a-parkinsonian-syndrome
#20
Julius Juurmaa, Ricarda A L Menke, Pierre Vila, Andreas Müürsepp, Tiiu Tomberg, Pilvi Ilves, Mait Nigul, Heidi Johansen-Berg, Michael Donaghy, Charlotte J Stagg, Ainārs Stepens, Pille Taba
BACKGROUND: A permanent Parkinsonian syndrome occurs in intravenous abusers of the designer psychostimulant methcathinone (ephedrone). It is attributed to deposition of contaminant manganese, as reflected by characteristic globus pallidus hyperintensity on T1-weighted MRI. METHODS: We have investigated brain structure and function in methcathinone abusers (n = 12) compared to matched control subjects (n = 12) using T1-weighted structural and resting-state functional MRI...
November 2016: Brain and Behavior
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