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https://www.readbyqxmd.com/read/28720741/-transvenous-embolization-by-direct-puncture-of-the-superior-sagittal-sinus-using-indocyanine-green-icg-videoangiography-for-treatment-of-dural-arteriovenous-fistula-of-the-transverse-sigmoid-sinus-a-case-report
#1
Jo Matsuzaki, Kenichi Kono, Arisa Umesaki, Yojiro Kashimura, Hiroaki Matsumoto, Tomoaki Terada
We report a case of dural arteriovenous fistula at the left transverse sinus and sigmoid sinus(TS-dAVF), which was treated with transvenous embolization(TVE)by direct puncture of the superior sagittal sinus(SSS)under indocyanine green(ICG)fluoroscopic guidance. A 71-year-old woman presented with pulsatile tinnitus and progressive dementia. A left TS-dAVF with retrograde SSS and cortical venous reflux(Cognard type IIb)was demonstrated on cerebral angiography. The left internal jugular vein and distal portion of the right transverse sinus were occluded...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28714891/structural-and-functional-neuroimaging-of-visual-hallucinations-in-lewy-body-disease-a-systematic-literature-review
#2
REVIEW
Stefania Pezzoli, Annachiara Cagnin, Oliver Bandmann, Annalena Venneri
Patients with Lewy body disease (LBD) frequently experience visual hallucinations (VH), well-formed images perceived without the presence of real stimuli. The structural and functional brain mechanisms underlying VH in LBD are still unclear. The present review summarises the current literature on the neural correlates of VH in LBD, namely Parkinson's disease (PD), and dementia with Lewy bodies (DLB). Following a systematic literature search, 56 neuroimaging studies of VH in PD and DLB were critically reviewed and evaluated for quality assessment...
July 15, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28712747/selectivity-and-kinetic-requirements-of-hdac-inhibitors-as-progranulin-enhancers-for-treating-frontotemporal-dementia
#3
Angela She, Iren Kurtser, Surya A Reis, Krista Hennig, Jenny Lai, Audrey Lang, Wen-Ning Zhao, Ralph Mazitschek, Bradford C Dickerson, Joachim Herz, Stephen J Haggarty
Frontotemporal dementia (FTD) arises from neurodegeneration in the frontal, insular, and anterior temporal lobes. Autosomal dominant causes of FTD include heterozygous mutations in the GRN gene causing haploinsufficiency of progranulin (PGRN) protein. Recently, histone deacetylase (HDAC) inhibitors have been identified as enhancers of PGRN expression, although the mechanisms through which GRN is epigenetically regulated remain poorly understood. Using a chemogenomic toolkit, including optoepigenetic probes, we show that inhibition of class I HDACs is sufficient to upregulate PGRN in human neurons, and only inhibitors with apparent fast binding to their target HDAC complexes are capable of enhancing PGRN expression...
July 11, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28711765/functional-magnetic-resonance-imaging-response-as-an-early-biomarker-of-cognitive-decline-in-elderly-patients-with-metabolic-syndrome
#4
Nadia Shigaeff, Edson Amaro, Fabio G M Franco, Alessandro F Jacinto, Gabriela Chiochetta, Maysa S Cendoroglo, Vanessa A Citero
OBJECTIVES: We assessed whether potential changes in brain activation patterns of elderly individuals with metabolic syndrome (MetS) who were cognitively healthy (without mild cognitive impairment or dementia) were associated with cognitive decline in executive function in the short-term. METHOD: We analyzed 43 individuals (23 MetS, 20 controls) using a global geriatric evaluation, a neuropsychological battery, and task-related (attention) fMRI exam. Correlation analysis between the fMRI signal at baseline and cognitive impairment after 1year was based on the voxel-based Pearson coefficient, corrected for multiple comparisons...
July 8, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28710667/parkinson-s-disease-with-mild-cognitive-impairment-severe-cortical-thinning-antedates-dementia
#5
Carmen Gasca-Salas, Daniel García-Lorenzo, David Garcia-Garcia, Pedro Clavero, José A Obeso, Stephane Lehericy, María C Rodríguez-Oroz
Mild cognitive impairment (MCI) in Parkinson's disease (PD) is a risk factor for dementia and thus, it is of interest to elucidate if specific patterns of atrophy in PD-MCI patients are associated with a higher risk of developing dementia. We aim to define pattern(s) of regional atrophy in PD-MCI patients who developed dementia during 31 months of follow-up using cortical thickness analysis Twenty-three PD-MCI patients and 18 controls underwent brain MRI and completed a neuropsychological examination at baseline, PD-MCI patients were followed after a 31 month follow-up in order to assess their progression to dementia...
July 14, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28707717/an-autopsied-case-of-corticobasal-degeneration-presenting-with-frontotemporal-dementia-followed-by-myoclonus
#6
Yasushi Iwasaki, Keiko Mori, Masumi Ito, Maya Mimuro, Mari Yoshida
A Japanese woman developed frontotemporal dementia (FTD)-like symptoms of abnormal behavior, such as stereotyped behavior and disinhibition. The patient developed these symptoms at the age of 59 years, although aphasia symptoms were not apparent at early disease stages. Progressive parkinsonism was dominant on the left side, and conspicuous myoclonus was recognized in the late disease stage. MRI indicated severe, right side-dominant frontotemporal lobe atrophy with white matter degeneration. Brainstem and cerebellar atrophy were also observed...
July 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28702192/freezing-of-gait-is-an-early-clinical-feature-of-progressive-supranuclear-palsy
#7
Yasushi Osaki, Yukari Morita, Yuka Miyamoto, Kounosuke Furuta, Hirokazu Furuya
BACKGROUND AND AIM: Early clinical diagnosis of progressive supranuclear palsy (PSP) remains challenging. AIM: We attempted to identify any sign or symptom to diagnose PSP earlier. METHODS: A total of 401 patients, 40 with PSP and 361 with other neurodegenerative disorders, were included. We followed these patients for at least 1 year since 2009. We reviewed the signs and symptoms of patients with PSP in a standardized manner, and observed four manifestations: "vertical supranuclear gaze abnormality," "movement disorders," "pseudobulbar palsy" and "dementia of frontal type...
May 2017: Neurology and Clinical Neuroscience
https://www.readbyqxmd.com/read/28701494/loss-of-phosphodiesterase-4-in-parkinson-disease-relevance-to-cognitive-deficits
#8
Flavia Niccolini, Heather Wilson, Gennaro Pagano, Christopher Coello, Mitul A Mehta, Graham E Searle, Roger N Gunn, Eugenii A Rabiner, Thomas Foltynie, Marios Politis
OBJECTIVE: To assess in vivo the expression of phosphodiesterase 4 (PDE4) and its relevance to cognitive symptoms in patients with Parkinson disease (PD) using [(11)C]rolipram PET. METHODS: We studied 12 levodopa-treated patients with PD with no concurrent diagnosis of mild cognitive impairment or dementia. Their data were compared with those from 12 healthy controls. All participants underwent neuropsychiatric and cognitive assessment using the Cambridge Neuropsychological Test Automated Battery...
July 12, 2017: Neurology
https://www.readbyqxmd.com/read/28691164/pick-s-disease-with-neuronal-four-repeat-tau-accumulation-in-the-basal-ganglia-brain-stem-nuclei-and-cerebellum
#9
Chikako Ikeda, Osamu Yokota, Tomoko Miki, Shintaro Takenoshita, Hideki Ishizu, Yoko Mori, Kiyohiro Yamazaki, Yuki Ozaki, Shu-Ichi Ueno, Takeshi Ishihara, Masato Hasegawa, Seishi Terada, Norihito Yamada
It is very rare that cases of Pick's disease, a representative three-repeat (3R) tauopathy, also have significant four-repeat (4R) tau accumulation. Here, we report a Pick's disease case that clinically showed behavioral variant frontotemporal dementia without motor disturbance during the course, and pathologically had 3R tau-positive Pick bodies as well as numerous 4R tau-positive neuronal cytoplasmic inclusions (NCIs). Abundant 3R tau-positive 4R tau-negative spherical or horseshoe-shaped Pick bodies were found in the frontotemporal cortex, limbic region, striatum and pontine nucleus...
July 9, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28690635/the-development-of-the-dementia-screening-battery-100-instrument-presentation-reliability-and-construct-validity
#10
Tarek Bellaj, Sonia Ben Jemaa, Maher Khelifa, Mona Ben Djebara, Riadh Gouider, Didier Le Gall
BACKGROUND/AIM: The screening of dementia in non-Westerners has so far relied on translations and adaptations of reputed instruments. Other efforts focused on developing culturally appropriate tests or tests in touch with new developments in the field. This study presents the rationale behind the construction of a new dementia screening test: the Dementia Screening Battery-100 (DSB-100). METHODS: The DSB-100 was administered to 46 demented individuals and 159 healthy matched controls...
May 2017: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28686563/-legal-capacity-and-instruments-assessing-cognitive-functions-in-patients-with-dementia
#11
P Voskou, S Papageorgiou, A Economou, A Douzenis
The term "legal capacity" refers to the ability of a person to make a valid declaration of his will or to accept such a declaration. This ability constitutes the main condition for the validity of the legal transaction. The legal transaction includes issues that are adjusted by the Civil Code with which the relations of the citizens in a society are regulated. General practitioners and legal advisors, in any case of a person with cognitive impairment of various severity, should take into account that the assessment tests of the cognitive functions are not by themselves diagnostic of the dementia and they cannot be used as the only way of evaluation of the capacity of patients with cognitive impairment or possible dementia to respond to the needs of everyday life and in more complex decisions, such as the legal capacity...
April 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/28674847/a-new-integrated-dual-time-point-amyloid-pet-mri-data-analysis-method
#12
Diego Cecchin, Henryk Barthel, Davide Poggiali, Annachiara Cagnin, Solveig Tiepolt, Pietro Zucchetta, Paolo Turco, Paolo Gallo, Anna Chiara Frigo, Osama Sabri, Franco Bui
PURPOSE: In the initial evaluation of patients with suspected dementia and Alzheimer's disease, there is no consensus on how to perform semiquantification of amyloid in such a way that it: (1) facilitates visual qualitative interpretation, (2) takes the kinetic behaviour of the tracer into consideration particularly with regard to at least partially correcting for blood flow dependence, (3) analyses the amyloid load based on accurate parcellation of cortical and subcortical areas, (4) includes partial volume effect correction (PVEC), (5) includes MRI-derived topographical indexes, (6) enables application to PET/MRI images and PET/CT images with separately acquired MR images, and (7) allows automation...
July 4, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28666471/heterogeneous-ribonuclear-protein-e2-hnrnp-e2-is-associated-with-tdp-43-immunoreactive-neurites-in-semantic-dementia-but-not-with-other-tdp-43-pathological-subtypes-of-frontotemporal-lobar-degeneration
#13
Yvonne S Davidson, Andrew C Robinson, Louis Flood, Sara Rollinson, Bridget C Benson, Yasmine T Asi, Anna Richardson, Matthew Jones, Julie S Snowden, Stuart Pickering-Brown, Tammaryn Lashley, David M A Mann
Frontotemporal Lobar Degeneration (FTLD) encompasses certain related neurodegenerative disorders which alter personality and cognition. Heterogeneous ribonuclear proteins (hnRNPs) maintain RNA metabolism and changes in their function may underpin the pathogenesis of FTLD. Immunostaining for hnRNP E2 was performed on sections of frontal and temporal cortex with hippocampus from 80 patients with FTLD, stratified by pathology into FTLD-tau and FTLD-TDP type A, B and C subtypes, and by genetics into patients with C9orf72 expansions, MAPT or GRN mutations, or those with no known mutation, and on 10 healthy controls...
June 30, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28660777/diogenes-syndrome-in-frontotemporal-dementia
#14
Catherine M Finney, Mario F Mendez
Diogenes syndrome refers to the combination of extreme self-neglect and excessive collecting with clutter and squalor, which is often present in patients with dementia. Diogenes syndrome may be particularly common in behavioral variant frontotemporal dementia (bvFTD), and the investigation of these patients may help clarify the nature of this syndrome. We describe 5 patients with bvFTD who exhibited a decline in self-care accompanied by hoarding behaviors. These patients, and a review of the literature, suggest a combination of frontal lobe disturbances: loss of insight or self-awareness with a failure to clean up or discard, a general compulsive drive, and an innate impulse to take environmental items...
January 1, 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28659421/slowing-gait-and-risk-for-cognitive-impairment-the-hippocampus-as-a-shared-neural-substrate
#15
Andrea L Rosso, Joe Verghese, Andrea L Metti, Robert M Boudreau, Howard J Aizenstein, Stephen Kritchevsky, Tamara Harris, Kristine Yaffe, Suzanne Satterfield, Stephanie Studenski, Caterina Rosano
OBJECTIVE: To identify the shared neuroimaging signature of gait slowing and cognitive impairment. METHODS: We assessed a cohort of older adults (n = 175, mean age 73 years, 57% female, 65% white) with repeated measures of gait speed over 14 years, MRI for gray matter volume (GMV) at year 10 or 11, and adjudicated cognitive status at year 14. Gait slowing was calculated by bayesian slopes corrected for intercepts, with higher values indicating faster decline. GMV was normalized to intracranial volume, with lower values indicating greater atrophy for 10 regions of interest (hippocampus, anterior and posterior cingulate, primary and supplementary motor cortices, posterior parietal lobe, middle frontal lobe, caudate, putamen, pallidum)...
June 28, 2017: Neurology
https://www.readbyqxmd.com/read/28632523/frontotemporal-dementia-presenting-as-gambling-disorder-when-a-psychiatric-condition-is-the-clue-to-a-neurodegenerative-disease
#16
Giacomo Tondo, Fabiola De Marchi, Emanuela Terazzi, Marta Sacchetti, Roberto Cantello
Behavioral variant frontotemporal dementia, the most common form of frontotemporal dementia, is characterized by executive dysfunction and changes in personality and behavior, sometimes with associated psychiatric disorders. We report a man who suddenly developed a gambling disorder when he was 55 years old. A year later he developed personality changes of agitation, euphoria, and disinhibition, along with binge eating and dysthymia. He did not improve on paroxetine 40 mg/day. Two years after the onset of his symptoms, he came to our clinic for evaluation...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28627088/astrogliosis-and-impaired-aquaporin-4-and-dystrophin-systems-in-idiopathic-normal-pressure-hydrocephalus
#17
Per Kristian Eide, Hans-Arne Hansson
AIMS: Idiopathic normal pressure hydrocephalus (iNPH) is one subtype of dementia that may improve following drainage of cerebrospinal fluid (CSF). This prospective observational study explored whether expression of the water channel aquaporin-4 (AQP4) and the anchoring molecule dystrophin 71 (Dp71) are altered at astrocytic perivascular endfeet and in adjacent neuropil of iNPH patient. Observations were related to measurements of pulsatile and static intracranial pressure (ICP). METHODS: The study included iNPH patients undergoing overnight monitoring of the pulsatile/static ICP, in whom a biopsy was taken from the frontal cerebral cortex during placement of the ICP sensor...
June 19, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28625940/prodromal-stage-of-disease-dementia-with-lewy-bodies-how-to-diagnose-in-practice
#18
Frédéric Blanc, Marc Verny
Disease with Lewy bodies or dementia with Lewy bodies (DLB), particularly at the prodromal stage, is a complex disease to diagnose because of different clinical beginnings and variable paths in terms of clinical expression. Thus DLB can be entcountered in different input modes: mild cognitive impairment, depression, acute behavioral disorders, confusion and delirium, or sleep disorders. In the aim to better diagnose the disease, should be sought obviously to search for the key symptoms: fluctuations, hallucinations, extra-pyramidal syndrome, and REM sleep behavior disorder...
June 1, 2017: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/28621495/the-spectrum-of-pre-dementia-stages-cognitive-profile-of-motoric-cognitive-risk-syndrome-and-relationship-with-mild-cognitive-impairment
#19
H Sekhon, G Allali, C P Launay, J Chabot, O Beauchet
BACKGROUND AND PURPOSE: Motoric cognitive risk (MCR) syndrome is a pre-dementia syndrome. There is little information on the cognitive profile of individuals with MCR syndrome and its overlap with mild cognitive impairment (MCI) syndrome. This study aimed to examine and compare the cognitive performance of non-demented older community dwellers with and without MCR and MCI syndromes. METHODS: A total of 291 non-demented individuals were selected from the Gait and Alzheimer Interactions Tracking study, which is a cross-sectional study...
August 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28615433/disease-progression-in-c9orf72-mutation-carriers
#20
Mary K Floeter, Bryan J Traynor, Jennifer Farren, Laura E Braun, Michael Tierney, Edythe A Wiggs, Tianxia Wu
OBJECTIVE: To assess changes in 3 clinical measures, the Revised ALS Functional Rating Scale (ALSFRS-R), letter fluency, and Frontal Behavioral Inventory (FBI), over time in C9orf72 mutation carriers (C9+) with varied clinical phenotypes. METHODS: Thirty-four unrelated participants with mutations in C9orf72 were enrolled in a prospective natural history study. Participants were classified as asymptomatic, amyotrophic lateral sclerosis (ALS), ALS-familial frontotemporal dementia (FTD), or behavioral-variant FTD by clinical diagnostic criteria...
June 14, 2017: Neurology
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