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https://www.readbyqxmd.com/read/28527207/beyond-a-differential-diagnosis-cognitive-and-morphometric-decoding-of-information-processing-speed-in-senior-adults-with-dsm-5-mild-neurocognitive-disorders
#1
Hanna Lu, Sandra S M Chan, Ada W T Fung, Linda C W Lam
BACKGROUND: Processing speed has been highlighted as a diagnostic item for neurocognitive disorders (NCD) in DSM-5. The utility of information processing speed (IPS) enclosed with multiscale constructs in the diagnosis of NCD warrants exploration. OBJECTIVE: We aimed to investigate the IPS with two types of measurements in the patients with NCD due to vascular disease (NCD-vascular) and NCD due to Alzheimer's disease (NCD-AD), and examine the associations between IPS measures and morphometric features...
May 13, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28526295/large-scale-exploratory-genetic-analysis-of-cognitive-impairment-in-parkinson-s-disease
#2
Ignacio F Mata, Catherine O Johnson, James B Leverenz, Daniel Weintraub, John Q Trojanowski, Vivianna M Van Deerlin, Beate Ritz, Rebecca Rausch, Stewart A Factor, Cathy Wood-Siverio, Joseph F Quinn, Kathryn A Chung, Amie L Peterson-Hiller, Alberto J Espay, Fredy J Revilla, Johnna Devoto, Dora Yearout, Shu-Ching Hu, Brenna A Cholerton, Thomas J Montine, Karen L Edwards, Cyrus P Zabetian
Cognitive impairment is a common and disabling problem in Parkinson's disease (PD). Identification of genetic variants that influence the presence or severity of cognitive deficits in PD might provide a clearer understanding of the pathophysiology underlying this important nonmotor feature. We genotyped 1105 PD patients from the PD Cognitive Genetics Consortium for 249,336 variants using the NeuroX array. Participants underwent assessments of learning and memory (Hopkins Verbal Learning Test-Revised [HVLT-R]), working memory/executive function (Letter-Number Sequencing and Trail Making Test [TMT] A and B), language processing (semantic and phonemic verbal fluency), visuospatial abilities (Benton Judgment of Line Orientation [JoLO]), and global cognitive function (Montreal Cognitive Assessment)...
April 20, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28523229/strategy-based-reasoning-training-modulates-cortical-thickness-and-resting-state-functional-connectivity-in-adults-with-chronic-traumatic-brain-injury
#3
Kihwan Han, Rebecca A Davis, Sandra B Chapman, Daniel C Krawczyk
INTRODUCTION: Prior studies have demonstrated training-induced changes in the healthy adult brain. Yet, it remains unclear how the injured brain responds to cognitive training months-to-years after injury. METHODS: Sixty individuals with chronic traumatic brain injury (TBI) were randomized into either strategy-based (N = 31) or knowledge-based (N = 29) training for 8 weeks. We measured cortical thickness and resting-state functional connectivity (rsFC) before training, immediately posttraining, and 3 months posttraining...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28513073/early-neurocognitive-improvements-following-parathyroidectomy-for-primary-hyperparathyroidism
#4
Shivani Shah-Becker, Jonathan Derr, Benjamin S Oberman, Aaron Baker, Brian Saunders, Michele M Carr, David Goldenberg
OBJECTIVES: To establish a time frame for postoperative improvements in neurocognitive function in patients who undergo parathyroidectomy for primary hyperparathyroidism by utilizing repeat neuropsychological assessment at multiple time points before and after surgery. STUDY DESIGN: Prospective cohort study. METHODS: A prospective study was conducted at a tertiary academic medical center between August 2014 and December 2015, including 50 patients with primary hyperparathyroidism who underwent parathyroidectomy...
May 16, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28512429/reduced-prefrontal-short-latency-afferent-inhibition-in-older-adults-and-its-relation-to-executive-function-a-tms-eeg-study
#5
Yoshihiro Noda, Reza Zomorrodi, Felicity Backhouse, Robin F H Cash, Mera S Barr, Tarek K Rajji, Robert Chen, Zafiris J Daskalakis, Daniel M Blumberger
Combining transcranial magnetic stimulation (TMS) with electroencephalography (EEG) allows for the assessment of various neurophysiological processes in the human cortex. One of these paradigms, short-latency afferent inhibition (SAI), is thought to be a sensitive measure of cholinergic activity. In a previous study, we demonstrated the temporal pattern of this paradigm from both the motor (M1) and dorsolateral prefrontal cortex (DLPFC) using simultaneous TMS-EEG recording. The SAI paradigm led to marked modulations at N100...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28512223/kinematics-of-the-lever-arm-swing-in-myosin-vi
#6
Mauro L Mugnai, D Thirumalai
Myosin VI (MVI) is the only known member of the myosin superfamily that, upon dimerization, walks processively toward the pointed end of the actin filament. The leading head of the dimer directs the trailing head forward with a power stroke, a conformational change of the motor domain exaggerated by the lever arm. Using a unique coarse-grained model for the power stroke of a single MVI, we provide the molecular basis for its motility. We show that the power stroke occurs in two major steps. First, the motor domain attains the poststroke conformation without directing the lever arm forward; and second, the lever arm reaches the poststroke orientation by undergoing a rotational diffusion...
May 16, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28510619/diabetes-and-cognitive-decline-in-older-adults-the-ginkgo-evaluation-of-memory-study
#7
Priya Palta, Michelle C Carlson, Rosa M Crum, Elizabeth Colantuoni, A Richey Sharrett, Sevil Yasar, Richard L Nahin, Steven T DeKosky, Beth Snitz, Oscar Lopez, Jeff D Williamson, Curt D Furberg, Stephen R Rapp, Sherita Hill Golden
Background: Previous studies have shown that individuals with diabetes exhibit accelerated cognitive decline. However, methodological limitations have limited the quality of this evidence. Heterogeneity in study design, cognitive test administration, and methods of analysis of cognitive data have made it difficult to synthesize and translate findings to practice. We analyzed longitudinal data from the Ginkgo Evaluation of Memory Study to test our hypothesis that older adults with diabetes have greater test-specific and domain-specific cognitive declines compared to older adults without diabetes...
May 16, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28507490/cognitive-impairment-in-patients-with-severe-psoriasis
#8
Luiza Marek-Józefowicz, Marcin Jaracz, Waldemar Placek, Rafał Czajkowski, Alina Borkowska
INTRODUCTION: Psoriasis is a chronic inflammatory skin disease, in which an important role is played by psychological factors. AIM: To evaluate the frontal cognitive functions in patients with psoriasis. MATERIAL AND METHODS: The study included 188 subjects (97 patients with psoriasis and 91 healthy controls). To assess the dorsolateral prefrontal cortex functions, the Trail Making Test and the Stroop test were applied. Severity of psoriasis was assessed by means of the PASI index...
April 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28507309/pick1-genetic-variation-and-cognitive-function-in-patients-with-schizophrenia
#9
Yi-Ting Chen, Chieh-Hsin Lin, Chiung-Hsien Huang, Wen-Miin Liang, Hsien-Yuan Lane
The gene of protein interacting with C kinase 1 alpha (PICK1) has been implicated in schizophrenia, nevertheless, conflicting results existed. However, its role in cognitive function remains unclear. Besides, cognitive deficits impair the long-term outcome. We explored whether the polymorphisms of PICK1 (rs2076369, rs3952) affected cognitive functions in schizophrenic patients. We analyzed 302 patients and tested the differences of cognitive functions, clinical symptoms between genetic groups. We also used general linear model to analyze the effect of PICK1 genetic polymorphisms on cognitive functions...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28505973/vitamin-d-insufficiency-and-cognitive-function-trajectories-in-older-adults-the-rancho-bernardo-study
#10
Gail A Laughlin, Donna Kritz-Silverstein, Jaclyn Bergstrom, Emilie T Reas, Simerjot K Jassal, Elizabeth Barrett-Connor, Linda K McEvoy
BACKGROUND: Evidence of a role for vitamin D (VitD) in cognitive aging is mixed and based primarily on extreme VitD deficiency. We evaluated the association of VitD insufficiency with cognitive function in older, community-dwelling adults living in a temperate climate with year-round sunshine. METHODS: A population-based longitudinal study of 1,058 adults (median age 75; 62% women) who had cognitive function assessed and serum levels of 25-hydroxyvitaminD (25OHD) measured in 1997-99 and were followed for up to three additional cognitive function assessments over a 12-year period...
May 11, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28502049/evaluation-of-carbofuran-mediated-toxicity-against-human-lymphocytes-and-red-blood-cells-in-simulated-wastewater-degraded-by-coagulation-flocculation
#11
Roli Saini, Pradeep Kumar, Sumit Kumar Hira, Partha Pratim Manna
Coagulation-flocculation in water treatment has been relied upon aluminum (Al) and iron (Fe) salts for treatment of contaminants present in source waters containing dissolved organic compounds. However, water quality deteriorates day by day which makes it urgent to improve the standards of the treatment procedure. Coagulation-flocculation-sedimentation performance of ferric chloride and alum was comparatively investigated for carbofuran treatment in simulated wastewater. Coagulation trails were performed in a jar test at several pH levels and coagulant doses to determine reduction efficiencies of carbofuran degradation and chemical oxygen demand (COD)...
May 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28489138/attention-deficit-hyperactivity-disorder-the-impact-of-methylphenidate-on-working-memory-inhibition-capacity-and-mental-flexibility
#12
Cristiana Bolfer, Sandra Pasquali Pacheco, Miriam Harumi Tsunemi, Walter Souza Carreira, Beatriz Borba Casella, Erasmo Barbante Casella
Objective: To compare children with attention-deficit/hyperactivity disorder (ADHD), before and after the use of methylphenidate, and a control group, using tests of working memory, inhibition capacity and mental flexibility. Methods: Neuropsychological tests were administrated to 53 boys, 9-12 years old: the WISC-III digit span backward, and arithmetic; Stroop Color; and Trail Making Tests. The case group included 23 boys with ADHD, who were combined type, treatment-naive, and with normal intelligence without comorbidities...
April 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28482936/a-comparison-of-immersive-virtual-reality-with-traditional-neuropsychological-measures-in-the-assessment-of-executive-functions
#13
Sophie Melissa Clare Davison, Catherine Deeprose, Sylvia Terbeck
OBJECTIVE: This study investigated immersive virtual reality (IVR), as a novel technique to test executive function of healthy younger and older adults. We predicted IVR tasks to have greater predictive power than traditional measures when assessing age-related cognitive functioning due to the real-world validity of the tasks. METHODS: Participants (n=40) completed the Stroop colour-word test and the trail-making test (TMT) as traditional and commonly used assessments of executive functioning...
May 9, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28482311/tryptophan-breakdown-and-cognition-in-bipolar-disorder
#14
Martina Platzer, Nina Dalkner, Frederike T Fellendorf, Armin Birner, Susanne A Bengesser, Robert Queissner, Nora Kainzbauer, René Pilz, Simone Herzog-Eberhard, Carlo Hamm, Christa Hörmanseder, Alexander Maget, Philipp Rauch, Harald Mangge, Dietmar Fuchs, Sieglinde Zelzer, Gregor Schütze, Natalie Moll, Markus J Schwarz, Rodrigo B Mansur, Roger S McIntyre, Eva Z Reininghaus
INTRODUCTION: It has been demonstrated that bipolar disorder (BD) is often accompanied by cognitive deficits across all subdomains including verbal memory, attention and executive functioning. Cognitive deficits are observed both during episodes of mania or depression, as well as during the euthymic phase. It has been proposed that chronic immune-mediated inflammation in the central nervous system results in alterations in neural structures that subserve cognitive function. Kynurenine is an intermediate in the inflammatory cascade and can be peripherally measured to proxy inflammatory activity...
April 27, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28477351/normalization-of-timed-neuropsychological-tests-with-the-pata-rate-and-nine-hole-pegboard-tests
#15
Francesco Saccà, Teresa Costabile, Filomena Abate, Agnese Liguori, Francesca Paciello, Chiara Pane, Anna De Rosa, Fiore Manganelli, Giuseppe De Michele, Alessandro Filla
INTRODUCTION: Despite neurological patients show frequent physical impairment, timed neuropsychological tests do not take this into account during scoring procedures. OBJECTIVE: We propose a normalization method based on the PATA Rate Task (PRT) and on the nine-hole pegboard test (9HPT) as a measure of dysarthria and upper limb dysfunction. METHODS: We tested 65 healthy controls on timed neuropsychological tests (Attentional Matrices [AM], Trail Making Test, Symbol Digit Modalities Test, Verbal Fluencies) to determine the time spent on phonation or on hand movement during test execution...
May 6, 2017: Journal of Neuropsychology
https://www.readbyqxmd.com/read/28475942/distinct-cognitive-performance-and-patterns-of-drug-use-among-early-and-late-onset-cocaine-users
#16
Bruna Mayara Lopes, Priscila Dib Gonçalves, Mariella Ometto, Bernardo Dos Santos, Mikael Cavallet, Tiffany Moukbel Chaim-Avancini, Mauricio Henriques Serpa, Sergio Nicastri, André Malbergier, Geraldo F Busatto, Arthur Guerra de Andrade, Paulo Jannuzzi Cunha
INTRODUCTION: Adolescence is a crucial period for neurodevelopment, but few studies have investigated the impact of early cocaine use on cognitive performance and patterns of substance use. METHODS: We evaluated 103 cocaine dependent inpatients divided in two groups: early-onset users (EOG; n=52), late-onset users (LOG; n=51), and 63 healthy controls. Neuropsychological functioning was evaluated using Digits Forward (DF) and Backward (DB), Trail Making Test (TMT), Stroop Color Word Test (SCWT), Controlled Oral Word Association Test (COWAT), Wisconsin Card Sorting Test (WCST), Rey Osterrieth Complex Figure Test (ROCFT), Frontal Assessment Battery (FAB), and Iowa Gambling Test (IGT)...
April 29, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28474775/subcortical-hyperintensities-in-the-cholinergic-system-are-associated-with-improvements-in-executive-function-in-older-adults-with-coronary-artery-disease-undergoing-cardiac-rehabilitation
#17
Calvin Santiago, Nathan Herrmann, Walter Swardfager, Mahwesh Saleem, Paul I Oh, Sandra E Black, Janelle Bradley, Krista L Lanctôt
OBJECTIVE: Coronary artery disease (CAD) is frequently accompanied by white matter hyperintensities and executive dysfunction. Because acetylcholine is important in executive function, these symptoms may be exacerbated by subcortical hyperintensities (SH) located in cholinergic (CH) tracts. This study investigated the effects of SH on cognitive changes in CAD patients undergoing a 48-week cardiac rehabilitation program. METHODS: Fifty patients (age 66.5 ± 7.1 years, 84% male) underwent the National Institute of Neurological Disorders and Stroke - Canadian Stroke Network neurocognitive battery at baseline and 48 weeks...
May 5, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28471765/impact-of-aging-on-neurocognitive-performance-in-previously-antiretroviral-na%C3%A3-ve-hiv-individuals-on-their-first-suppressive-regimen
#18
Hamza Coban, Kevin Robertson, Marlene Smurzynski, Supriya Krishnan, Kunling Wu, Ronald J Bosch, Ann C Collier, Ronald J Ellis
BACKGROUND: Despite treatment with virologically suppressive antiretroviral therapy (ART), neurocognitive impairment may persist or develop de novo in aging HIV-infected individuals. We evaluated advancing age as a predictor of neurocognitive impairment in a large cohort of previously ART-naïve individuals on long-term ART DESIGN:: The AIDS Clinical Trials Group (ACTG) Longitudinal Linked Randomized Trials (ALLRT) was a prospective cohort study of HIV-infected individuals originally enrolled in randomized ART trials...
May 3, 2017: AIDS
https://www.readbyqxmd.com/read/28471731/efficacy-and-safety-of-ashwagandha-withania-somnifera-l-dunal-root-extract-in-improving-memory-and-cognitive-functions
#19
Dnyanraj Choudhary, Sauvik Bhattacharyya, Sekhar Bose
OBJECTIVES: Cognitive decline is often associated with the aging process. Ashwagandha (Withania somnifera (L.) Dunal) has long been used in the traditional Ayurvedic system of medicine to enhance memory and improve cognition. AIM: This pilot study was designed to evaluate the efficacy and safety of ashwagandha (Withania somnifera (L.) Dunal) in improving memory and cognitive functioning in adults with mild cognitive impairment (MCI). METHODS: A prospective, randomized, double-blind, placebo-controlled study was conducted in 50 adults...
November 2, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28467128/cystodistension-is-there-evidence-to-support-its-use-in-current-practice-for-patients-with-overactive-bladder
#20
Aswini Balachandran, Jonathan Duckett
Cystoscopy and cystodistension have been part of common treatment protocols for a variety of bladder conditions for many years. However, the science behind the procedure is not strong and continued use of the operation may not be justified. Much research is old and was not planned or executed with the current rigour demanded by current trial methods. Newer treatments such as intravesical botulinum toxin have been extensively researched and found to be effective. This review article aimed to review the evidence behind the use of cystodistension for overactive bladder (OAB) with the aim of identifying the weaknesses in the current evidence...
May 3, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
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