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https://www.readbyqxmd.com/read/29222477/a-novel-eeg-based-spectral-analysis-of-persistent-brain-function-alteration-in-athletes-with-concussion-history
#1
Tamanna T K Munia, Ali Haider, Charles Schneider, Mark Romanick, Reza Fazel-Rezai
The neurocognitive sequelae of a sport-related concussion and its management are poorly defined. Detecting deficits are vital in making a decision about the treatment plan as it can persist one year or more following a brain injury. The reliability of traditional cognitive assessment tools is debatable, and thus attention has turned to assessments based on electroencephalogram (EEG) to evaluate subtle post-concussive alterations. In this study, we calculated neurocognitive deficits combining EEG analysis with three standard post-concussive assessment tools...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29209183/cognitive-flexibility-training-a-large-scale-multimodal-adaptive-active-control-intervention-study-in-healthy-older-adults
#2
Jessika I V Buitenweg, Renate M van de Ven, Sam Prinssen, Jaap M J Murre, K Richard Ridderinkhof
As aging is associated with cognitive decline, particularly in the executive functions, it is essential to effectively improve cognition in older adults. Online cognitive training is currently a popular, though controversial method. Although some changes seem possible in older adults through training, far transfer, and longitudinal maintenance are rarely seen. Based on previous literature we created a unique, state-of-the-art intervention study by incorporating frequent sessions and flexible, novel, adaptive training tasks, along with an active control group...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29182194/-performance-of-an-abbreviated-mini-mental-examination-to-detect-dementia-in-older-people
#3
Daniel Jiménez, Manuel Lavados, Paula Rojas, Claudio Henríquez, Fernando Silva, Marta Guillón
BACKGROUND: The usefulness of the abbreviated Mini-Mental State Examination included in the Chilean Functional assessment of elderly people (MM-SE-EFAM) to detect Dementia has not been determined. AIM: To assess the performance of the MMSE-EFAM to detect dementia. MATERIAL AND METHODS: We studied a non-probabilistic sample of subjects older than 65 years who had been assessed by the MMSE-EFAM in a Chilean primary care center during a period of 6 months...
July 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/29164390/nutrition-and-mobility-predict-all-cause-mortality-in-patients-12%C3%A2-months-after-transcatheter-aortic-valve-implantation
#4
Sarah Eichler, Annett Salzwedel, Axel Harnath, Christian Butter, Karl Wegscheider, Mihai Chiorean, Heinz Völler, Rona Reibis
BACKGROUND: The aim of the study was to determine pre-interventional predictors for all-cause mortality in patients after transcatheter aortic valve implantation (TAVI) with a 12-month follow-up. METHODS: From 10/2013 to 07/2015, 344 patients (80.9 ± 5.0 years, 44.5% male) with an elective TAVI were consecutively enrolled prospectively in a multicentre cohort study. Prior to the intervention, sociodemographic parameters, echocardiographic data and comorbidities were documented...
November 21, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29152735/6%C3%A2-hz-corneal-kindling-in-mice-triggers-neurobehavioral-comorbidities-accompanied-by-relevant-changes-in-c-fos-immunoreactivity-throughout-the-brain
#5
Giulia Albertini, Laura Walrave, Thomas Demuyser, Ann Massie, Dimitri De Bundel, Ilse Smolders
OBJECTIVE: Besides seizures, patients with epilepsy are affected by a variety of cognitive and psychiatric comorbidities that further impair their quality of life. The present study provides an in-depth characterization of the behavioral alterations induced by 6 Hz corneal kindling. Furthermore, we correlate these behavioral changes to alterations in c-Fos protein expression throughout the brain following kindling. METHODS: Adolescent male Naval Medical Research Institute (NMRI) mice were kindled via repetitive subconvulsive 6 Hz corneal stimulations until they reached the fully kindled state (defined as 10 consecutive generalized seizures)...
November 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/29081155/-changes-of-brain-function-and-cognitive-function-after-carotid-artery-stenting
#6
Z X Lu, G Deng, H L Wei, G F Zhao, L Z Wen, X Chen
Objective: To investigate the effect of carotid artery stenting(CAS) on cognitive function and brain function based on changes of a battery of neuropsychological tests and magnetic resonance imaging. Methods: Thirty-three patients were included with 17 in the stent-placement group and 16 in the control group (receiving medical treatment), among whom, the unilateral or bilateral severe internal carotid artery stenosis was confirmed by cerebral vascular angiography in the department of Interventional Radiology and Vascular Surgery of Zhongda Hospital Southeast University from June 2015 to September 2016...
October 24, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29080453/ameliorating-effect-of-alpinia-oxyphylla-schisandra-chinensis-herb-pair-on-cognitive-impairment-in-a-mouse-model-of-alzheimer-s-disease
#7
Mengshi Wang, Wenchuan Bi, Kaiyue Fan, Tongde Li, Tingxu Yan, Feng Xiao, Bosai He, Kaishun Bi, Ying Jia
Alzheimer's disease (AD) is the most common cause of dementia. In our previous study, we found both Alpinia oxyphylla and Schisandra chinensis can improve the cognitive function of AD. To investigate whether the Alpinia oxyphylla - Schisandra chinensis herb pair (ASHP) has ameliorating effect on cognitive impairment, we used scopolamine to induce learning and memory impairments, as a mouse model of AD. Subsequently, we carried out Y-maze test and Morris water maze test to observe the behavior of mice. Finally, the level of Acetylcholine (Ach) and muscarinic receptor (M1) receptors, the activity of choline acetyltransferase (ChAT) and acetyl cholinesterase (AChE) were measured by commercial assay kits and ELISA kit...
October 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29057696/effects-of-spontaneous-recurrent-seizures-on-cognitive-function-via-modulation-of-snares-expression
#8
Hua Yu, Xuelian Yang, Xu Tang, Renkuan Tang
PURPOSE: To explore whether soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNARE) complexes are involved in cognitive dysfunction induced by spontaneous recurrent seizures (SRS). MATERIALS AND METHODS: An animal model of epilepsy was established by intraperitoneal injection of kainic acid (KA). Following the onset of SRS, the rats were divided into control group, KA-SRS group, KA+SRS group and KA+SRS+VAP group. Morris water maze and open field test were conducted to evaluate the cognitive function...
October 23, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28973135/beyond-accuracy-hidden-motives-in-diagnostic-testing
#9
Matthias Michiels-Corsten, Norbert Donner-Banzhoff
Background: Diagnostic decision-making is usually disease-focussed and intended to examine the patient's medical condition accurately. But diagnostic interventions may serve further purposes that are not yet fully understood. Objective: To explore GPs' diagnostic behaviour not related to confirming or refuting a specific disease. Methods: We recorded 295 primary care consultations in 12 practices. One hundred thirty-four consultations comprised at least one diagnostic episode...
September 16, 2017: Family Practice
https://www.readbyqxmd.com/read/28972994/-timed-up-and-go-test-age-gender-and-cognitive-impairment-stratified-normative-values-of-older-adults
#10
Azianah Ibrahim, Devinder Kaur Ajit Singh, Suzana Shahar
AIMS: The aim of this study was to establish 'Timed up and Go' test (TUG) normative data among community dwelling older adults stratified based on cognitive status, gender and age groups. METHODS: A total of 2084 community dwelling older adults from wave I and II were recruited through a multistage random sampling method. TUG was performed using the standard protocol and scores were then stratified based on with and without mild cognitive impairment (MCI), gender and in a 5-year age groups ranging from ages of 60's to 80's...
2017: PloS One
https://www.readbyqxmd.com/read/28867578/streptozotocin-induced-hippocampal-astrogliosis-and-insulin-signaling-malfunction-as-experimental-scales-for-subclinical-sporadic-alzheimer-model
#11
Farzaneh Rostami, Mohammad Javan, Ali Moghimi, Aliakbar Haddad-Mashadrizeh, Masoud Fereidoni
AIMS: Insulin signaling malfunction has recently been suggested as a preliminary event involved in the etiology of Sporadic Alzheimer's disease (SAD). In order to develop insulin resistance-related SAD model, rats were treated with streptozotocin, intracerebroventricularly (icv-STZ). Nevertheless, given the lack of knowledge regarding sub-clinical stages of SAD, the current challenging issue is establishing a practical pre-clinical SAD model. Despite some proposed mechanisms, such as insulin malfunction, neuroinflammation, and gliosis, icv-STZ mechanism of action is not fully understood yet and Streptozotocin-induced rat model of Alzheimer has still major shortcomings...
November 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28867383/protective-effects-of-kinetin-against-aluminum-chloride-and-d-galactose-induced-cognitive-impairment-and-oxidative-damage-in-mouse
#12
Yunpeng Wei, Dan Liu, Yin Zheng, Honglian Li, Chaoshuang Hao, Wuqing Ouyang
Increasing evidence indicates that aluminum exposure and oxidative stress play crucial roles in the initiation and development of Alzheimer's disease (AD). Aluminum chloride (AlCl3) and d-galactose (d-gal) combined treatment of mice is considered as an easy and cheap way to obtain an animal model of AD. Kinetin is a plant cytokinin, which is also reported to exert neuro-protective effects in vivo and in vitro. Thus, in this study, neuro-protective effects of kinetin were investigated in an AD model of mice induced by AlCl3 and d-gal...
September 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28851448/dietary-arachidonic-acid-increases-deleterious-effects-of-amyloid-%C3%AE-oligomers-on-learning-abilities-and-expression-of-ampa-receptors-putative-role-of-the-acsl4-cpla2-balance
#13
Mélanie H Thomas, Cédric Paris, Mylène Magnien, Julie Colin, Sandra Pelleïeux, Florence Coste, Marie-Christine Escanyé, Thierry Pillot, Jean-Luc Olivier
BACKGROUND: Polyunsaturated fatty acids play a crucial role in neuronal function, and the modification of these compounds in the brain could have an impact on neurodegenerative diseases such as Alzheimer's disease. Despite the fact that arachidonic acid is the second foremost polyunsaturated fatty acid besides docosahexaenoic acid, its role and the regulation of its transfer and mobilization in the brain are poorly known. METHODS: Two groups of 39 adult male BALB/c mice were fed with an arachidonic acid-enriched diet or an oleic acid-enriched diet, respectively, for 12 weeks...
August 29, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28836954/randomized-controlled-trial-to-evaluate-the-effects-of-personalized-prediction-and-adaptation-tools-on-treatment-outcome-in-outpatient-psychotherapy-study-protocol
#14
Wolfgang Lutz, Dirk Zimmermann, Viola N L S Müller, Anne-Katharina Deisenhofer, Julian A Rubel
BACKGROUND: Psychotherapy is successful for the majority of patients, but not for every patient. Hence, further knowledge is needed on how treatments should be adapted for those who do not profit or deteriorate. In the last years prediction tools as well as feedback interventions were part of a trend to more personalized approaches in psychotherapy. Research on psychometric prediction and feedback into ongoing treatment has the potential to enhance treatment outcomes, especially for patients with an increased risk of treatment failure or drop-out...
August 24, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28828207/cerebral-gray-matter-volume-reduction-in-subcortical-vascular-mild-cognitive-impairment-patients-and-subcortical-vascular-dementia-patients-and-its-relation-with-cognitive-deficits
#15
Maoyu Li, Yao Meng, Minzhong Wang, Shuang Yang, Hui Wu, Bin Zhao, Guangbin Wang
INTRODUCTION: Subcortical vascular mild cognitive impairment (svMCI) is the predementia stage of subcortical vascular dementia (SVaD). The aim of this research is to explore and compare cerebral gray matter (GM) volume reduction in svMCI patients and SVaD patients, and to investigate the relationship between cerebral GM volume reduction and cognitive deficits. METHODS: Thirty one svMCI patients, 29 SVaD patients, and 31 healthy controls were recruited in our research...
August 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28817076/spirulina-maxima-extract-prevents-neurotoxicity-via-promoting-activation-of-bdnf-creb-signaling-pathways-in-neuronal-cells-and-mice
#16
Eun-Jeong Koh, Young-Jin Seo, Jia Choi, Hyeon Yong Lee, Do-Hyung Kang, Kui-Jin Kim, Boo-Yong Lee
Spirulina maxima is a microalgae which contains flavonoids and other polyphenols. Although Spirulina maxima 70% ethanol extract (SM70EE) has diverse beneficial effects, its effects on neurotoxicity have not been fully understood. In this study, we investigated the neuroprotective effects of SM70EE against trimethyltin (TMT)-induced neurotoxicity in HT-22 cells. SM70EE inhibited the cleavage of poly-ADP ribose polymerase (PARP). Besides, ROS production was decreased by down-regulating oxidative stress-associated enzymes...
August 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28810448/traumatic-exposure-and-posttraumatic-stress-disorder-among-flood-victims-testing-a-multiple-mediating-model
#17
Lijuan Quan, Rui Zhen, Benxian Yao, Xiao Zhou
A total of 187 flood victims from Wuhu, a Chinese city affected most severely by a flood during July 2016, were selected to complete self-report measures of traumatic exposure, feelings of safety, fear, posttraumatic negative cognition, and posttraumatic stress disorder. The results found that traumatic exposure could directly predict posttraumatic stress disorder. Besides, traumatic exposure had indirect prediction on posttraumatic stress disorder through three ways, including a one-step path of negative self-cognition, a two-step path from feelings of safety to fear, and a three-step path from feelings of safety to negative self-cognition via fear...
May 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28803382/cortical-afferent-inhibition-abnormalities-reveal-cholinergic-dysfunction-in-parkinson-s-disease-a-reappraisal
#18
REVIEW
Raffaele Nardone, Francesco Brigo, Viviana Versace, Yvonne Höller, Frediano Tezzon, Leopold Saltuari, Eugen Trinka, Luca Sebastianelli
Parkinson's disease (PD) is a multisystem neurodegenerative disorder affecting, besides the dopaminergic function, multiple neurotransmission systems, including the cholinergic system. Central cholinergic circuits of human brain can be tested non-invasively by coupling peripheral nerve stimulation with transcranial magnetic stimulation (TMS) of motor cortex; this test is named short latency afferent inhibition (SAI). SAI abnormalities have been reported in PD patients with gait disturbances and many non-motor symptoms, such as visual hallucinations (VHs), REM sleep behavior disorder (RBD), dysphagia, and olfactory impairment...
November 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28763376/effects-of-task-language-and-second-language-proficiency-on-the-neural-correlates-of-phonemic-fluency-in-native-japanese-speakers-a-functional-near-infrared-spectroscopy-study
#19
Greggory J Wroblewski, Koji Matsuo, Keiko Hirata, Toshio Matsubara, Kenichiro Harada, Yoshifumi Watanabe, Koh Shinoda
Data collected during a phonemic fluency task (or 'FAS test'), a standard component of neuropsychological batteries for assessment of cognitive deficits, may be language-dependent and may differ depending on second-language proficiency. The unique orthographic/phonological system of the task language, and the reported cognitive advantages inherent to bilinguals, may each influence the task's neural correlates. However, language background is not currently assessed in most studies testing phonemic fluency. Here, we used 52-channel functional near-infrared spectroscopy in college-aged native-Japanese subjects to examine functional changes in oxygenated hemoglobin elicited during a phonemic fluency task performed in Japanese and in English...
September 27, 2017: Neuroreport
https://www.readbyqxmd.com/read/28733759/management-of-gait-changes-and-fall-risk-in-mci-and-dementia
#20
REVIEW
Gilles Allali, Joe Verghese
Gait disorders and falls are very prevalent in aging, especially in older adults with cognitive impairment: older adults with dementia are 2-3 times more likely to fall than their non-demented counterparts. The management of gait disorders and falls in older adults with mild cognitive impairment (MCI) or dementia begins by their identification with the use of specific screening tools, such as measuring gait speed, use of dual-task gait tests, or diagnosing motoric cognitive risk syndrome, a newly described pre-dementia syndrome...
September 2017: Current Treatment Options in Neurology
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