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https://www.readbyqxmd.com/read/28342697/recent-publications-from-the-alzheimer-s-disease-neuroimaging-initiative-reviewing-progress-toward-improved-ad-clinical-trials
#1
REVIEW
Michael W Weiner, Dallas P Veitch, Paul S Aisen, Laurel A Beckett, Nigel J Cairns, Robert C Green, Danielle Harvey, Clifford R Jack, William Jagust, John C Morris, Ronald C Petersen, Andrew J Saykin, Leslie M Shaw, Arthur W Toga, John Q Trojanowski
INTRODUCTION: The Alzheimer's Disease Neuroimaging Initiative (ADNI) has continued development and standardization of methodologies for biomarkers and has provided an increased depth and breadth of data available to qualified researchers. This review summarizes the 450+ publications using ADNI data during 2014 and 2015. METHODS: We used standard searches to find publications using ADNI data. RESULTS: (1) Structural and functional changes, including subtle changes to hippocampal shape and texture, atrophy in areas outside of hippocampus, and disruption to functional networks, are detectable in presymptomatic subjects before hippocampal atrophy; (2) In subjects with abnormal β-amyloid deposition (Aβ+), biomarkers become abnormal in the order predicted by the amyloid cascade hypothesis; (3) Cognitive decline is more closely linked to tau than Aβ deposition; (4) Cerebrovascular risk factors may interact with Aβ to increase white-matter (WM) abnormalities which may accelerate Alzheimer's disease (AD) progression in conjunction with tau abnormalities; (5) Different patterns of atrophy are associated with impairment of memory and executive function and may underlie psychiatric symptoms; (6) Structural, functional, and metabolic network connectivities are disrupted as AD progresses...
March 22, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28338440/a-study-of-cognitive-function-in-treatment-refractory-obsessive-compulsive-disorder-treated-with-capsulotomy
#2
Feilong Gong, Peng Li, Bin Li, Shizhen Zhang, Xinjie Zhang, Sen Yang, Hongbin Liu, Wei Wang
OBJECTIVE Anterior capsulotomy (AC) is sometimes used as a last resort for treatment-refractory obsessive-compulsive disorder (OCD). Previous studies assessing neuropsychological outcomes in patients with OCD have identified several forms of cognitive dysfunction that are associated with the disease, but few have focused on changes in cognitive function in OCD patients who have undergone surgery. In the present study, the authors investigated the effects of AC on the cognitive function of patients with treatment-refractory OCD...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28332040/edinburgh-cognitive-and-behavioural-als-screen-ecas-italian-version-regression-based-norms-and-equivalent-scores
#3
Mattia Siciliano, Luigi Trojano, Francesca Trojsi, Roberta Greco, Manuela Santoro, Giuseppe Basile, Fausta Piscopo, Alfonsina D'Iorio, Manila Patrone, Cinzia Femiano, Mariarosaria Monsurrò, Gioacchino Tedeschi, Gabriella Santangelo
Cognitive assessment for individuals with Amyotrophic Lateral Sclerosis (ALS) can be difficult because of frequent occurrence of difficulties with speech, writing, and drawing. The Edinburgh Cognitive and Behavioural ALS Screen (ECAS) is a recent multi-domain neuropsychological screening tool specifically devised for this purpose, and it assesses the following domains: executive functions, social cognition, verbal fluency and language (ALS-specific), but also memory and visuospatial abilities (Non-ALS specific)...
March 22, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28326164/ptsd-symptom-severity-relates-to-cognitive-and-psycho-social-dysfunctioning-a-study-with-congolese-refugees-in-uganda
#4
Herbert E Ainamani, Thomas Elbert, David K Olema, Tobias Hecker
Background: In the ongoing conflict in the Democratic Republic of the Congo (DRC), civilians have been heavily exposed to traumatic stressors. Traumatizing experiences cumulatively heighten the risk for trauma-related disorders, and with it affect cognitive and psycho-social functioning. Objectives: We aimed at investigating the association between trauma-related disorders and cognitive and psycho-social functioning and hypothesized that PTSD symptom severity would negatively correlate with executive functioning, working memory and psycho-social functioning in everyday life...
2017: European Journal of Psychotraumatology
https://www.readbyqxmd.com/read/28319690/depression-and-executive-functioning-deficits-predict-poor-occupational-functioning-in-a-large-longitudinal-sample-with-bipolar-disorder
#5
Lisa A O'Donnell, Patricia J Deldin, Andrew Grogan-Kaylor, Melvin G McInnis, Jenna Weintraub, Kelly A Ryan, Joseph A Himle
BACKGROUND: Bipolar Disorder (BD) is characterized by impairments in psychosocial functioning with occupational disability being one of the most significant. Depression and neurocognitive deficits are features of BD most commonly associated with poor occupational functioning (OF). Few studies have examined these features over an extended period of time focusing on distinct aspects of work functioning. METHODS: This longitudinal study included 273 adults with bipolar I disorder (N=173), bipolar II disorder (N=69), and bipolar not otherwise specified (N=31)...
March 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28301977/cognitive-complaints-in-women-with-fibromyalgia-are-they-due-to-depression-or-to-objective-cognitive-dysfunction
#6
Olga Gelonch, Maite Garolera, Joan Valls, Lluís Rosselló, Josep Pifarré
INTRODUCTION: Cognitive complaints are common in fibromyalgia, but it is unclear whether they represent an objective cognitive dysfunction or whether they could be explained by depressive symptoms. Here, we aim to elucidate the frequency of subjective cognitive complaints in a sample of women with fibromyalgia, in addition to analyzing associations between these subjective complaints and objective measures linked to the attention and executive cognitive domains. Finally, we aim to investigate the ability of demographic, clinical, and psychological variables to explain the subjective complaints observed...
March 17, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28288855/alterations-in-prefrontal-connectivity-in-schizophrenia-assessed-using-diffusion-magnetic-resonance-imaging
#7
Vicente Molina, Alba Lubeiro, Oscar Soto, Margarita Rodriguez, Aldara Álvarez, Rebeca Hernández, Rodrigo de Luis-García
BACKGROUND: Spatial and biological characteristics of structural frontal disconnectivity in schizophrenia remain incompletely understood. Simultaneous streamline count (SC) and fractional anisotropy (FA) analyses may yield relevant complementary information to this end. METHODS: Using 3T diffusion magnetic resonance imaging both SC and FA were calculated for the tracts linking lateral and medial subregions of prefrontal cortex (PFC) to cingulate, hippocampus, caudate and thalamus in 27 schizophrenia patients (14 first-episodes) and 27 controls...
March 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28285771/improvement-in-depression-is-associated-with-improvement-in-cognition-in-late-life-psychotic-depression
#8
Lindsay W Victoria, Ellen M Whyte, Meryl A Butters, Barnett S Meyers, George S Alexopoulos, Benoit H Mulsant, Anthony J Rothschild, Samprit Banerjee, Alastair J Flint
OBJECTIVE: To characterize cognitive function at baseline and investigate the relationship between change in cognition, depression, and psychosis after treatment among older adults with major depressive disorder with psychotic features. METHODS: This was a secondary analysis of a double-blind, randomized, controlled treatment trial at inpatient and outpatient settings at four academic health centers on "Young Old" (aged 60-71 years, N = 71) and "Older" (aged 72-86 years, N = 71) participants diagnosed with psychotic depression...
February 9, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28285446/executive-function-as-a-mediator-in-the-link-between-single-or-complex-trauma-and-posttraumatic-stress-in-children-and-adolescents
#9
Rosanne Op den Kelder, Judith B M Ensink, Geertjan Overbeek, Marija Maric, Ramón J L Lindauer
PURPOSE: In this study, we examined whether there is a mediating role of executive function (EF) in the relationship between trauma exposure and posttraumatic stress in youth. METHODS: Children and adolescents exposed to trauma were recruited at an academic center for child psychiatry in The Netherlands. The total sample consisted of 119 children from 9 to 17 years old (M = 13.65, SD = 2.45). Based on retrospective life event information, the sample was divided into three groups: a single trauma group (n = 41), a complex trauma group (n = 38), and a control group that was not exposed to traumatic events (n = 40)...
March 11, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28283381/a-comprehensive-review-of-the-quality-and-feasibility-of-dementia-assessment-measures-the-dementia-outcomes-measurement-suite
#10
REVIEW
Adam Bentvelzen, Liesbeth Aerts, Katrin Seeher, Jacqueline Wesson, Henry Brodaty
The diagnosis of dementia and the management of its associated symptoms are aided by high-quality assessment tools. However, there is disagreement on the optimal tools among abundant alternatives and lack of consistent quality standards across the different domains of dementia-related change (ie, cognition, severity, function, behavioral and psychological symptoms, delirium, quality of life). Standardization is difficult because the relevance of a measurement tool for health professionals may depend on the clinical setting and on the dementia type and severity...
March 7, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28275020/intellectual-disability-complicated-by-sexual-addiction-an-uncommon-presentation-of-a-common-condition
#11
Nicholas Tze Ping Pang, Ruziana Masiran
A young man presented with high libido for 3 years, associated with preoccupation with sexual thoughts combined with his pursuit of pornographic materials. He had strong psychological cravings for and had spent large amount of money on sex, resulting in a dispute with his family. There were no mood or psychotic symptoms. Medical history revealed recent diagnosis of gonococcal urethritis. Cognitive assessment showed subtle deficiencies in reasoning and executive functions. There was occasional use of alcohol...
March 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28274640/clinical-predictors-of-attention-and-executive-functioning-outcomes-in-children-after-perinatal-arterial-ischemic-stroke
#12
Danielle D Bosenbark, Lauren Krivitzky, Rebecca Ichord, Arastoo Vossough, Aashim Bhatia, Laura E Jastrzab, Lori Billinghurst
BACKGROUND: Children with perinatal arterial ischemic stroke (PAIS) are at risk for later neurocognitive and behavioral deficits, yet the clinical predictors of these outcomes are understudied. We examined the influence of clinical and infarct characteristics on attention and executive functioning in children following PAIS. METHODS: Forty children born at term (≥37 weeks' gestation) with PAIS (28 with neonatal arterial ischemic stroke and 12 with presumed PAIS) underwent a comprehensive neuropsychological battery at age three to 16 years (median age 7...
January 25, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28272307/blood-biomarkers-predict-the-cognitive-effects-of-aripiprazole-in-patients-with-acute-schizophrenia
#13
Hikaru Hori, Reiji Yoshimura, Asuka Katsuki, Kiyokazu Atake, Ryohei Igata, Yuki Konishi, Hiroki Beppu, Hirotaka Tominaga
Aripiprazole has been reported to exert variable effects on cognitive function in patients with schizophrenia. Therefore, in the present study, we evaluated biological markers, clinical data, and psychiatric symptoms in order to identify factors that influence cognitive function in patients with schizophrenia undergoing aripiprazole treatment. We evaluated cognitive function in 51 patients with schizophrenia using Brief Assessment of Cognition in Schizophrenia (BACS), as well as background information, psychiatric symptoms, plasma catecholamine metabolites-homovanillic acid (HVA), 3-methoxy-4-hydroxyphenylglycol (MHPG)-, and serum brain-derived neurotrophic factor (BDNF)...
March 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28270412/relationship-between-hypotension-and-cerebral-ischemia-during-hemodialysis
#14
Clare MacEwen, Sheera Sutherland, Jonathan Daly, Christopher Pugh, Lionel Tarassenko
The relationship between BP and downstream ischemia during hemodialysis has not been characterized. We studied the dynamic relationship between BP, real-time symptoms, and cerebral oxygenation during hemodialysis, using continuous BP and cerebral oxygenation measurements prospectively gathered from 635 real-world hemodialysis sessions in 58 prevalent patients. We examined the relationship between BP and cerebral ischemia (relative drop in cerebral saturation >15%) and explored the lower limit of cerebral autoregulation at patient and population levels...
March 7, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28269177/recursive-feature-elimination-for-biomarker-discovery-in-resting-state-functional-connectivity
#15
Hariharan Ravishankar, Radhika Madhavan, Rakesh Mullick, Teena Shetty, Luca Marinelli, Suresh E Joel
Biomarker discovery involves finding correlations between features and clinical symptoms to aid clinical decision. This task is especially difficult in resting state functional magnetic resonance imaging (rs-fMRI) data due to low SNR, high-dimensionality of images, inter-subject and intra-subject variability and small numbers of subjects compared to the number of derived features. Traditional univariate analysis suffers from the problem of multiple comparisons. Here, we adopt an alternative data-driven method for identifying population differences in functional connectivity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263252/flexed-truncal-posture-in-parkinson-disease-measurement-reliability-and-relationship-with-physical-and-cognitive-impairments-mobility-and-balance
#16
Aimi L Forsyth, Serene S Paul, Natalie E Allen, Catherine Sherrington, Victor S C Fung, Colleen G Canning
BACKGROUND AND PURPOSE: Flexed truncal posture is common in people with Parkinson disease (PD); however, little is known about the mechanisms responsible or its effect on physical performance. This cross-sectional study aimed to establish the reliability of a truncal posture measurement and explore relationships between PD impairments and truncal posture, as well as truncal posture and balance and mobility. METHODS: A total of 82 people with PD participated. Truncal posture was measured in standing as the distance between vertebra C7 and a wall...
April 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28262266/ptsd-in-court-ii-risk-factors-endophenotypes-and-biological-underpinnings-in-ptsd
#17
REVIEW
Gerald Young
The second article in the series of three for the journal on "PTSD in Court" especially concerns the biological bases that have been found to be associated with PTSD (posttraumatic stress disorder). The cohering concepts in this section relate to risk factors; candidate genes; polygenetics; "gene×environment" interactions; epigenetics; endophenotypes; biomarkers; and connective networks both structurally and functionally (in terms of intrinsic connectivity networks, ICNs, including the DMN, SN, and CEN; that is, default mode, salience, and central executive networks, respectively)...
March 2, 2017: International Journal of Law and Psychiatry
https://www.readbyqxmd.com/read/28262185/cognitive-sequelae-of-methanol-poisoning-involve-executive-dysfunction-and-memory-impairment-in-cross-sectional-and-long-term-perspective
#18
O Bezdicek, J Michalec, M Vaneckova, J Klempir, I Liskova, Z Seidl, B Janikova, M Miovsky, J Hubacek, P Diblik, P Kuthan, A Pilin, I Kurcova, Z Fenclova, V Petrik, T Navratil, D Pelclova, S Zakharov, E Ruzicka
Methanol poisoning leads to lesions in the basal ganglia and subcortical white matter, as well as to demyelination and atrophy of the optic nerve. However, information regarding cognitive deficits in a large methanol sample is lacking. The principal aim of the present study was to identify the cognitive sequelae of methanol poisoning and their morphological correlates. A sample of 50 patients (METH; age 48 ± 13 years), 3-8 months after methanol poisoning, and 57 control subjects (CS; age 49 ± 13 years) were administered a neuropsychological battery...
March 2017: Alcohol
https://www.readbyqxmd.com/read/28256689/-neuropsychology-of-tourette-s-disorder-cognition-neuroimaging-and-creativity
#19
R Espert, M Gadea, M Alino, J Oltra-Cucarella
INTRODUCTION: Tourette's disorder is the result of fronto-striatal brain dysfunction affecting people of all ages, with a debut in early childhood and continuing into adolescence and adulthood. DEVELOPMENT: This article reviews the main cognitive, functional neuroimaging and creativity-related studies in a disorder characterized by an excess of dopamine in the brain. CONCLUSIONS: Given the special cerebral configuration of these patients, neuropsychological alterations, especially in executive functions, should be expected...
February 24, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28235814/differentiating-cognitive-impairment-due-to-corticobasal-degeneration-and-alzheimer-disease
#20
Gregory S Day, Tae Sung Lim, Jason Hassenstab, Alison M Goate, Elizabeth A Grant, Catherine M Roe, Nigel J Cairns, John C Morris
OBJECTIVE: To identify clinical features that reliably differentiate individuals with cognitive impairment due to corticobasal degeneration (CBD) and Alzheimer disease (AD). METHODS: Clinical features were compared between individuals with autopsy-proven CBD (n = 17) and AD (n = 16). All individuals presented with prominent cognitive complaints and were evaluated annually with semistructured interviews, detailed neurologic examinations, and neuropsychological testing...
February 24, 2017: Neurology
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