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https://www.readbyqxmd.com/read/27913387/using-multivariate-base-rates-to-interpret-low-scores-on-an-abbreviated-battery-of-the-delis-kaplan-executive-function-system
#1
Justin E Karr, Mauricio A Garcia-Barrera, James A Holdnack, Grant L Iverson
OBJECTIVE: Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests...
December 1, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/27905159/the-interaction-of-sleep-and-amyloid-deposition-on-cognitive-performance
#2
Jennifer R V Molano, Catherine M Roe, Yo-El S Ju
Sleep difficulties are emerging as a risk factor for dementia. This study examined the effect of sleep and amyloid deposition on cognitive performance in cognitively normal adults. Sleep efficiency was determined by actigraphy. Cerebrospinal fluid Aβ42 levels <500 pg mL(-1) , indicating amyloid deposition, was present in 23 participants. Psychometric tests included the Free and Cued Selective Reminding Test, Trail Making Test A and B, Animal Fluency, Letter Number Sequencing, and the Mini Mental State Examination...
December 1, 2016: Journal of Sleep Research
https://www.readbyqxmd.com/read/27904618/assessment-of-different-anesthesia-depth-under-total-intravenous-anesthesia-on-postoperative-cognitive-function-in-laparoscopic-patients
#3
Delin Zhang, Aiqing Nie
BACKGROUND: This study aimed to compare the effects of different depths of sedation during total intravenous anesthesia (TIVA) with remifentanil and propofol given by target-controlled infusion (TCI) on postoperative cognitive function in young and middle-aged patients undergoing gynecological laparoscopic surgery. MATERIALS AND METHODS: A total of 150 American Society of Anesthesiologists physical Status I/II patients scheduled for gynecological laparoscopic operation were randomly divided into three groups...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27899053/cognitive-performance-in-subjects-with-multiple-sclerosis-is-robustly-influenced-by-gender-in-canonical-correlation-analysis
#4
Sue-Jin Lin, Janet Lam, Samantha Beveridge, Irene Vavasour, Anthony Traboulsee, David K B Li, Alex MacKay, Martin McKeown, Brenda Kosaka
The authors explored the relations between clinical/demographic characteristics and performance on a neuropsychological battery (eight tests) in a cohort (N=46) of multiple sclerosis (MS) subjects. Findings resulted from a secondary analysis of a study examining the relationships between imaging biomarkers in MS and cognitive tasks of executive functioning. The objective was to determine whether the overlapping test results could be judiciously combined and associated with clinical/demographic variables. Canonical-correlation analysis (CCA) was utilized, and it was found that differences between performance on untimed tests, and the sum of performance on timed Trail-Making Tests, Parts A and B, best matched clinical/demographic variables, and gender was the most important feature...
November 30, 2016: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/27893813/azidothymidine-sensitizes-primary-effusion-lymphoma-cells-to-kaposi-sarcoma-associated-herpesvirus-specific-cd4-t-cell-control-and-inhibits-virf3-function
#5
Samantha J Williamson, Samantha M Nicol, Michael Stürzl, Shereen Sabbah, Andrew D Hislop
Kaposi sarcoma-associated herpesvirus (KSHV) is linked with the development of Kaposi sarcoma and the B lymphocyte disorders primary effusion lymphoma (PEL) and multi-centric Castleman disease. T cell immunity limits KSHV infection and disease, however the virus employs multiple mechanisms to inhibit efficient control by these effectors. Thus KSHV-specific CD4+ T cells poorly recognize most PEL cells and even where they can, they are unable to kill them. To make KSHV-infected cells more sensitive to T cell control we treated PEL cells with the thymidine analogue azidothymidine (AZT), which sensitizes PEL lines to Fas-ligand and TRAIL challenge; effector mechanisms which T cells use...
November 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27892704/the-effects-of-a-16-week-aerobic-exercise-programme-on-cognitive-function-in-people-living-with-hiv
#6
Adam McDermott, Lilia Zaporojan, Patricia McNamara, Colin P Doherty, Janice Redmond, Cuisle Forde, John Gormley, Mikel Egaña, Colm Bergin
High levels of cardiovascular fitness and physical activity are associated with higher levels of cognitive function in people with HIV, thus, they may reduce the risk of developing HIV-associated neurocognitive disorder (HAND). This study aimed to investigate the effects of a 16-week aerobic exercise intervention on cognitive function in people with HIV. Eleven participants living with HIV were recruited into the study. Participants were randomised into either an exercise group (n = 5), that completed a 16-week aerobic exercise programme training, 3 times per week (2 supervised sessions and one unsupervised session) or a control group (n = 6) that received no intervention...
November 28, 2016: AIDS Care
https://www.readbyqxmd.com/read/27891431/excessive-daytime-sleepiness-in-schizophrenia-a-naturalistic-clinical-study
#7
Payal Sharma, Reetika Dikshit, Nilesh Shah, Sagar Karia, Avinash De Sousa
INTRODUCTION: Excessive Daytime Sleepiness (EDS) and sleep problems are common in patients with schizophrenia. The symptom of EDS in schizophrenia can be attributed to various causes including neurobiological changes, sleep disorders, medication or as a symptom of schizophrenia itself. EDS as a symptom in schizophrenia has been understudied. AIM: To assess the prevalence of EDS and to the study the same in patients with first episode and chronic schizophrenia. MATERIALS AND METHODS: In this cross-sectional study 100 patients suffering from schizophrenia as per International Classification of Diseases (ICD-10) criteria were evaluated for sleep quality using the Pittsburgh Sleep Quality Index (PSQI) and EDS using the Epworth Sleepiness Scale (ESS)...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889886/association-of-midlife-smoking-status-with-change-in-processing-speed-and-mental-flexibility-among-hiv-seropositive-and-hiv-seronegative-older-men-the-multicenter-aids-cohort-study
#8
Wajiha Z Akhtar-Khaleel, Robert L Cook, Steve Shoptaw, Eric N Miller, Ned Sacktor, Pamela J Surkan, Jim Becker, Linda A Teplin, Rebecca J Beyth, Catherine Price, Michael Plankey
Smoking is a potential risk factor for age-related cognitive decline. To date, no study has examined the association between smoking and cognitive decline in men living with human immunodeficiency virus (HIV). The aim of this present study is to examine whether smoking status and severity in midlife is associated with a rate of decline in cognitive processing speed among older HIV-seropositive and HIV-seronegative men who have sex with men. Data from 591 older HIV-seropositive and HIV-seronegative men who have sex with men from the Multicenter AIDS Cohort Study were examined...
November 26, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27887610/integral-strategy-to-supportive-care-in-breast-cancer-survivors-through-occupational-therapy-and-a-m-health-system-design-of-a-randomized-clinical-trial
#9
Mario Lozano-Lozano, Lydia Martín-Martín, Noelia Galiano-Castillo, Francisco Álvarez-Salvago, Irene Cantarero-Villanueva, Carolina Fernández-Lao, Carmen Sánchez-Salado, Manuel Arroyo-Morales
BACKGROUND: Technological support using e-health mobile applications (m-health) is a promising strategy to improve the adherence to healthy lifestyles in breast cancer survivors (excess in energy intake or low physical activity are determinants of the risk of recurrence, second cancers and cancer mortality). Moreover, cancer rehabilitation programs supervised by health professionals are needed due to the inherent characteristics of these breast cancer patients. Our main objective is to compare the clinical efficacy of a m-health lifestyle intervention system alone versus an integral strategy to improve Quality of Life in breast cancer survivors...
November 25, 2016: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/27886019/an-analysis-of-a-digital-variant-of-the-trail-making-test-using-machine-learning-techniques
#10
Jessamyn Dahmen, Diane Cook, Robert Fellows, Maureen Schmitter-Edgecombe
BACKGROUND: The goal of this work is to develop a digital version of a standard cognitive assessment, the Trail Making Test (TMT), and assess its utility. OBJECTIVE: This paper introduces a novel digital version of the TMT and introduces a machine learning based approach to assess its capabilities. METHODS: Using digital Trail Making Test (dTMT) data collected from (N = 54) older adult participants as feature sets, we use machine learning techniques to analyze the utility of the dTMT and evaluate the insights provided by the digital features...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27884145/estimation-of-the-cool-executive-function-using-frontal-electroencephalogram-signals-in-first-episode-schizophrenia-patients
#11
Yi Yu, Yun Zhao, Yajing Si, Qiongqiong Ren, Wu Ren, Changqin Jing, Hongxing Zhang
BACKGROUND: In schizophrenia, executive dysfunction is the most critical cognitive impairment, and is associated with abnormal neural activities, especially in the frontal lobes. Complexity estimation using electroencephalogram (EEG) recording based on nonlinear dynamics and task performance tests have been widely used to estimate executive dysfunction in schizophrenia. METHODS: The present study estimated the cool executive function based on fractal dimension (FD) values of EEG data recorded from first-episode schizophrenia patients and healthy controls during the performance of three cool executive function tasks, namely, the Trail Making Test-A (TMT-A), Trail Making Test-B (TMT-B), and Tower of Hanoi tasks...
November 25, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/27878440/cognitive-dysfunction-in-patients-with-spinocerebellar-ataxia-type-6
#12
Itaru Tamura, Asako Takei, Shinsuke Hamada, Michio Nonaka, Yoshiko Kurosaki, Fumio Moriwaka
The aim of this study was to assess the cognitive functions of patients with spinocerebellar ataxia type 6 (SCA6). We examined 13 patients with genetically confirmed SCA6 and 13 healthy control subjects matched for age, years of education, global cognitive status, and intellectual ability. We administered verbal memory (word recall and word recognition), executive function (digit span, category and letter fluency, Frontal Assessment Battery, and Trail Making Test-A and B), and visuospatial construction (figure copying) tests...
November 22, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27874176/effects-of-tai-chi-on-cognition-and-fall-risk-in-older-adults-with-mild-cognitive-impairment-a-randomized-controlled-trial
#13
Somporn Sungkarat, Sirinun Boripuntakul, Nipon Chattipakorn, Kanokwan Watcharasaksilp, Stephen R Lord
OBJECTIVES: To examine whether combined center- and home-based Tai Chi training can improve cognitive ability and reduce physiological fall risk in older adults with amnestic mild cognitive impairment (a-MCI). DESIGN: Randomized controlled trial. SETTING: Chiang Mai, Thailand. PARTICIPANTS: Adults aged 60 and older who met Petersen's criteria for multiple-domain a-MCI (N = 66). INTERVENTION: Three weeks center-based and 12 weeks home-based Tai Chi (50 minutes per session, 3 times per week)...
November 22, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27871032/level-of-serum-thioredoxin-and-correlation-with-neurocognitive-functions-in-patients-with-schizophrenia-using-clozapine-and-other-atypical-antipsychotics
#14
Alper Bas, Gozde Gultekin, Said Incir, Tuba Ocek Bas, Murat Emul, Alaatin Duran
Thioredoxin is a serum antioxidant that has been investigated in the etiology of schizophrenia. The aim of this study is investigating the relationship between serum thioredoxin levels and cognitive functions in acute psychotic episode and remission state patients with schizophrenia; and examining whether there were differences between patients using clozapine and other atypical antipsychotics; including risperidone, olanzapine and amisulpride. This research was performed in schizophrenia patients hospitalized with acute psychotic episode (n=57), reevaluated patients after the initiation of treatment (mean 16 weeks) (n=46), and healthy controls (n=41)...
November 15, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27869715/randomized-prospective-double-blind-studies-to-evaluate-the-cognitive-effects-of-inositol-stabilized-arginine-silicate-in-healthy-physically-active-adults
#15
Douglas Kalman, Philip D Harvey, Sara Perez Ojalvo, James Komorowski
Inositol-stabilized arginine silicate (ASI; Nitrosigine(®)) has been validated to increase levels of arginine, silicon and nitric oxide production. To evaluate potential enhancement of mental focus and clarity, ASI (1500 mg/day) was tested in two double-blind placebo-controlled crossover (DBPC-X) studies using the Trail Making Test (TMT, Parts A and B). In the two studies, healthy males took ASI for 14 and 3 days, respectively. In the first study, after 14 days of dosing, TMT B time decreased significantly from baseline (28% improvement, p = 0...
November 18, 2016: Nutrients
https://www.readbyqxmd.com/read/27868580/attention-lapses-in-children-with-spina-bifida-and-hydrocephalus-and-children-with-attention-deficit-hyperactivity-disorder
#16
Gabriel G De la Torre, Alba Martin, Elizabeth Cervantes, Rocio Guil, Jose M Mestre
Attentional lapses are usually defined as temporary and often brief shifts of attention away from some primary task to unrelated internal information processing. This study addressed the incidence of attention lapses and differences in attentional functioning in 30 children with attention-deficit/hyperactivity disorder (ADHD), 26 healthy children, and 29 children with spina bifida myelomeningocele and hydrocephalus (SBH). Assessments were conducted using computerized tonic and phasic attention tests, the Symbol Digit Modalities Test (SDMT), and the Trail Making Test Form B (TMT-B)...
November 20, 2016: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/27856648/in-new-survey-of-eleven-countries-us-adults-still-struggle-with-access-to-and-affordability-of-health-care
#17
Robin Osborn, David Squires, Michelle M Doty, Dana O Sarnak, Eric C Schneider
Surveys of patients' experiences with health care services can reveal how well a country's health system is meeting the needs of its population. Using data from a 2016 survey conducted in eleven countries-Australia, Canada, France, Germany, the Netherlands, New Zealand, Norway, Sweden, Switzerland, the United Kingdom, and the United States-we found that US adults reported poor health and well-being and were the most likely to experience material hardship. The United States trailed other countries in making health care affordable and ranked poorly on providing timely access to medical care (except specialist care)...
November 16, 2016: Health Affairs
https://www.readbyqxmd.com/read/27855514/trail-blazing-or-jam-session-towards-a-new-concept-of-clinical-decision-making
#18
Torsten Risør
Clinical decision-making (CDM) is key in learning to be a doctor as the defining activity in their clinical work. CDM is often portrayed in the literature as similar to 'trail blazing'; the doctor as the core agent, clearing away obstacles on the path towards diagnosis and treatment. However, in a fieldwork of young doctors in Denmark, it was difficult connect their practice to this image. This paper presents the exploration of this discrepancy in the heart of medical practice and how an alternative image emerged; that of a 'jam session'...
November 17, 2016: Anthropology & Medicine
https://www.readbyqxmd.com/read/27855415/instrumented-trail-making-task-to-differentiate-persons-with-no-cognitive-impairment-amnestic-mild-cognitive-impairment-and-alzheimer-disease-a-proof-of-concept-study
#19
He Zhou, Marwan Sabbagh, Rachel Wyman, Carolyn Liebsack, Mark E Kunik, Bijan Najafi
BACKGROUND: Objective and time-effective tools are needed to identify motor-cognitive impairment and facilitate early intervention. OBJECTIVE: We examined the feasibility, accuracy, and reliability of an instrumented trail-making task (iTMT) using a wearable sensor to identify motor-cognitive impairment among older adults. METHODS: Thirty subjects (age = 82.2 + 6.1 years, body mass index = 25.7 + 4.8, female = 43.3%) in 3 age-matched groups, 11 healthy, 10 with amnestic mild cognitive impairment (aMCI), and 9 with Alzheimer disease (AD), were recruited...
November 18, 2016: Gerontology
https://www.readbyqxmd.com/read/27853742/psychomotor-and-cognitive-effects-of-15-minute-inhalation-of-methoxyflurane-in-healthy-volunteers-implication-for-post-colonoscopy-care
#20
Nam Q Nguyen, Jenna Burgess, Tamara L Debreceni, Leanne Toscano
Background and study aims: Colonoscopy with portal inhaled methoxyflurane (Penthrox) is highly feasible with low sedation risk and allows earlier discharge. It is unclear if subjects can return to highly skilled psychomotor skill task shortly after Penthrox assisted colonoscopy. We evaluated the psychomotor and cognitive effects of 15-minute inhalation of Penthrox in adults. Patients and methods: Sixty healthy volunteers (18 to 80 years) were studied on 2 occasions with either Penthrox or placebo in a randomized, double-blind fashion...
November 2016: Endoscopy International Open
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