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https://www.readbyqxmd.com/read/28935933/exploring-genetic-influences-underlying-acute-aerobic-exercise-effects-on-motor-learning
#1
Cameron S Mang, Lisa M McEwen, Julia L MacIsaac, Nicholas J Snow, Kristin L Campbell, Michael S Kobor, Colin J D Ross, Lara A Boyd
The objective of the current work was to evaluate whether the effects of acute aerobic exercise on motor learning were dependent on genetic variants impacting brain-derived neurotrophic factor (BDNF val66met polymorphism) and the dopamine D2 receptor (DRD2/ANKK1 glu713lys polymorphism) in humans. A retrospective analysis was performed to determine whether these polymorphisms influence data from our two previous studies, which both demonstrated that a single bout of aerobic exercise prior to motor practice enhanced implicit motor learning...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935628/effect-of-exercise-induced-lactate-elevation-on-brain-lactate-levels-during-hypoglycemia-in-patients-with-type-1-diabetes-and-impaired-awareness-of-hypoglycemia
#2
Evita C Wiegers, Hanne M Rooijackers, Cees J Tack, Hans J M M Groenewoud, Arend Heerschap, Bastiaan E de Galan, Marinette van der Graaf
Since altered brain lactate handling has been implicated in the development of impaired awareness of hypoglycemia (IAH) in type 1 diabetes, the capacity to transport lactate into the brain during hypoglycemia may be relevant in its pathogenesis. High-intensity interval training (HIIT) increases plasma lactate levels. We compared the effect of HIIT-induced hyperlacticacidemia on brain lactate during hypoglycemia between 1) patients with type 1 diabetes and IAH, 2) patients with type 1 diabetes and normal awareness of hypoglycemia (NAH), and 3) healthy non-diabetic participants (n=6 per group)...
September 21, 2017: Diabetes
https://www.readbyqxmd.com/read/28934191/effects-of-aerobic-exercise-on-brain-metabolism-and-grey-matter-volume-in-older-adults-results-of-the-randomised-controlled-smart-trial
#3
S Matura, J Fleckenstein, R Deichmann, T Engeroff, E Füzéki, E Hattingen, R Hellweg, B Lienerth, U Pilatus, S Schwarz, V A Tesky, L Vogt, W Banzer, J Pantel
There is mounting evidence that aerobic exercise has a positive effect on cognitive functions in older adults. To date, little is known about the neurometabolic and molecular mechanisms underlying this positive effect. The present study used magnetic resonance spectroscopy and quantitative MRI to systematically explore the effects of physical activity on human brain metabolism and grey matter (GM) volume in healthy aging. This is a randomised controlled assessor-blinded two-armed trial (n=53) to explore exercise-induced neuroprotective and metabolic effects on the brain in cognitively healthy older adults...
July 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28933745/effects-of-six-week-ginkgo-biloba-supplementation-on-aerobic-performance-blood-pro-antioxidant-balance-and-serum-brain-derived-neurotrophic-factor-in-physically-active-men
#4
Ewa Sadowska-Krępa, Barbara Kłapcińska, Ilona Pokora, Przemysław Domaszewski, Katarzyna Kempa, Tomasz Podgórski
Extracts of Ginkgo biloba leaves, a natural source of flavonoids and polyphenolic compounds, are commonly used as therapeutic agents for the improvement of both cognitive and physiological performance. The present study was aimed to test the effects of a six-week supplementation with 160 mg/day of a standardized extract of Ginkgo biloba or a matching placebo on aerobic performance, blood antioxidant capacity, and brain-derived neurotrophic factor (BDNF) level in healthy, physically active young men, randomly allocated to two groups (n = 9 each)...
July 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28931460/brief-executive-function-training-for-individuals-with-severe-mental-illness-effects-on-eeg-synchronization-and-executive-functioning
#5
Michael W Best, Daniel Gale, Tanya Tran, Mashal K Haque, Christopher R Bowie
BACKGROUND: Executive Functioning (EF) is an important factor for community functioning for people with severe mental illness. Cognitive remediation programs often improve EF, but do so by using multiple therapeutic techniques. Little is known regarding how individual treatment elements promote cognitive improvement. Oscillatory brain activity is a potential neurophysiological mechanism that may change as a result of targeted training on computerized exercises. The current study aimed to examine the effects of a brief EF training program on EEG and neurocognitive measures...
September 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28931312/antidepressive-effects-of-environmental-enrichment-in-chronic-stress-induced-depression-in-rats
#6
Ho-Hyun Seong, Jong-Min Park, Youn-Jung Kim
Depression is caused by a variety of factors, especially stressful life events. Chronic stress-induced depression has detrimental effects on hippocampal integrity. Environmental enrichment (EE) is a beneficial intervention for improving anxiety, fear, and stress. We aimed to investigate the antidepressive effects of EE in a depressive rat model (DEP) that was subjected to chronic stress. The control group ( n = 10) was kept under normal conditions, while depressive rats ( n = 8 per group) were randomized into DEP, DEP + EE, and DEP + fluoxetine (Flx) groups...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28929362/brain-reactivity-to-visual-food-stimuli-after-moderate-intensity-exercise-in-children
#7
Travis D Masterson, C Brock Kirwan, Lance E Davidson, Michael J Larson, Kathleen L Keller, S Nicole Fearnbach, Alyssa Evans, James D LeCheminant
Exercise may play a role in moderating eating behaviors. The purpose of this study was to examine the effect of an acute bout of exercise on neural responses to visual food stimuli in children ages 8-11 years. We hypothesized that acute exercise would result in reduced activity in reward areas of the brain. Using a randomized cross-over design, 26 healthy weight children completed two separate laboratory conditions (exercise; sedentary). During the exercise condition, each participant completed a 30-min bout of exercise at moderate-intensity (~ 67% HR maximum) on a motor-driven treadmill...
September 19, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28925506/laugh-induced-headache-clinical-features-and-literature-review
#8
REVIEW
Ye Ran, Huanxian Liu, Meichen Zhang, Zhao Dong, Shengyuan Yu
BACKGROUND: Laughing is a rare precipitating factor for headaches, and the pathogenesis underlying laugh-induced headache (LH) remains unclear. METHODS: Two cases of headache triggered predominantly by laughing were presented in this article. We also reviewed the published English literature regarding LH, summarized the clinical characteristics of LH, and discussed the probable pathophysiological mechanisms. RESULTS: In the first patient, magnetic resonance imaging of the brain revealed cerebellar tonsillar herniation through the foramen magnum...
September 19, 2017: Headache
https://www.readbyqxmd.com/read/28919388/altered-brain-functional-connectivity-induced-by-physical-exercise-may-improve-neuropsychological-functions-in-patients-with-benign-epilepsy
#9
Gyan Raj Koirala, Dongpyo Lee, Soyong Eom, Nam-Young Kim, Heung Dong Kim
OBJECTIVE: The objective of this study was to elucidate alteration in functional connectivity (FC) in patients with benign epilepsy with centrotemporal spikes (BECTS) as induced by physical exercise therapy and their correlation to the neuropsychological (NP) functions. METHODS: We analyzed 115 artifact- and spike-free 2-second epochs extracted from resting state EEG recordings before and after 5weeks of physical exercise in eight patients with BECTS. The exact Low Resolution Electromagnetic Tomography (eLORETA) was used for source reconstruction...
September 15, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28918494/betaine-in-the-brain-characterization-of-betaine-uptake-its-influence-on-other-osmolytes-and-its-potential-role-in-neuroprotection-from-osmotic-stress
#10
Leena S Knight, Quinn Piibe, Ian Lambie, Christopher Perkins, Paul H Yancey
Betaine (N-trimethylglycine), a common osmolyte, has received attention because of the number of clinical reports associating betaine supplementation with improved cognition, neuroprotection and exercise physiology. However, tissue analyses report little accumulation of betaine in brain tissue despite the presence of betaine/GABA transporters (BGT1) at the blood brain barrier and in nervous tissue, calling into question whether betaine influences neuronal function directly or indirectly. Therefore, the focus of this study was to determine what capacity nervous tissue has to accumulate betaine, specifically in the hippocampus, a region of the brain associated with learning and memory and one that is particularly susceptible to damage (e...
September 16, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28914724/the-role-of-brain-structure-in-predicting-adherence-to-a-physical-activity-regimen
#11
Swathi Gujral, Edward McAuley, Lauren E Oberlin, Arthur F Kramer, Kirk I Erickson
OBJECTIVE: Physical activity is important for maintaining health throughout the lifespan. However, adherence to PA regimens is poor with approximately 50% of older adults terminating activity intervention programs within 6 months. In this study we tested whether gray matter volume and white matter microstructural integrity prior to the initiation of a PA intervention predicts PA adherence. METHODS: 159 adults aged 60-80 years were randomly assigned to a moderate-intensity aerobic walking condition or a non-aerobic stretching and toning condition...
September 13, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28912696/swing-boat-inducing-and-recording-locomotor-activity-in-a-drosophila-melanogaster-model-of-alzheimer-s-disease
#12
Johannes Berlandi, Fang-Ju Lin, Oliver Ambrée, Dirk Rieger, Werner Paulus, Astrid Jeibmann
Recent studies indicate that physical activity can slow down progression of neurodegeneration in humans. To date, automated ways to induce activity have been predominantly described in rodent models. To study the impact of activity on behavior and survival in adult Drosophila melanogaster, we aimed to develop a rotating tube device "swing boat" which is capable of monitoring activity and sleep patterns as well as survival rates of flies. For the purpose of a first application, we tested our device on a transgenic fly model of Alzheimer's disease (AD)...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28912128/aging-modifies-the-effect-of-cardiac-output-on-middle-cerebral-artery-blood-flow-velocity
#13
Anne-Sophie G T Bronzwaer, Jasper Verbree, Wim J Stok, Mat J A P Daemen, Mark A van Buchem, Matthias J P van Osch, Johannes J van Lieshout
An association between cerebral blood flow (CBF) and cardiac output (CO) has been established in young healthy subjects. As of yet it is unclear how this association evolves over the life span. To that purpose, we continuously recorded mean arterial pressure (MAP; finger plethysmography), CO (pulse contour; CO-trek), mean blood flow velocity in the middle cerebral artery (MCAV; transcranial Doppler ultrasonography), and end-tidal CO2 partial pressure (PetCO2) in healthy young (19-27 years), middle-aged (51-61 years), and elderly subjects (70-79 years)...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28905640/neurobiological-mechanisms-of-exercise-and-psychotherapy-in-depression-the-speed-study-rationale-design-and-methodological-issues
#14
Stephan Heinzel, Michael A Rapp, Thomas Fydrich, Andreas Ströhle, Christina Terán, Gunnar Kallies, Melanie Schwefel, Andreas Heissel
BACKGROUND/AIMS: Even though cognitive behavioral therapy has become a relatively effective treatment for major depressive disorder and cognitive behavioral therapy-related changes of dysfunctional neural activations were shown in recent studies, remission rates still remain at an insufficient level. Therefore, the implementation of effective augmentation strategies is needed. In recent meta-analyses, exercise therapy (especially endurance exercise) was reported to be an effective intervention in major depressive disorder...
September 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28901279/role-of-physical-exercise-and-omega-3-fatty-acids-on-depressive-illness-in-the-elderly
#15
Stefano Farioli-Vecchioli, Stefano Sacchetti, Vittoria Nicolis di Robilant, Debora Cutuli
BACKGROUND: In adulthood, depression is the most common type of mental illness and will be the second leading cause of disease by 2020. Major depression dramatically affects the function of the central nervous system and degrades life quality, especially during aging. Several mechanisms underlie the pathophysiology of depressive illness, given it has a multifactorial etiology. Human and animal studies have demonstrated that depression is mainly associated with imbalances in neurotransmitters and neurotrophins, hypothalamic-pituitary-adrenal axis alterations, brain volume changes, neurogenesis dysfunction, and dysregulation of inflammatory pathways...
September 11, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28893565/a-review-of-the-effects-of-physical-activity-and-sports-concussion-on-brain-function-and-anatomy
#16
Sara Tremblay, Alvaro Pascual-Leone, Hugo Théoret
Physical activity has been associated with widespread anatomical and functional brain changes that occur following acute exercise or, in the case of athletes, throughout life. High levels of physical activity through the practice of sports also lead to better general health and increased cognitive function. Athletes are at risk, however, of suffering a concussion, the effects of which have been extensively described for brain function and anatomy. The level to which these effects are modulated by increased levels of fitness is not known...
September 8, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28887083/pres-leading-to-the-diagnosis-of-mcardle-disease
#17
Jennifer M Martinez-Thompson, Sean J Pittock, Margherita Milone
A 35year-old male developed myalgias after moving furniture and was hospitalized with acute renal failure and rhabdomyolysis requiring hemodialysis. He then had several generalized tonic-clonic seizures. Brain MRI showed findings of posterior reversible encephalopathy syndrome (PRES). Interval history revealed easy fatigability and exercise-induced myalgias in childhood but no preceding history of urine discoloration. Quadriceps biopsy showed absent muscle myophosphorylase reactivity consistent with the diagnosis of McArdle disease...
September 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28883658/running-reorganizes-the-circuitry-of-one-week-old-adult-born-hippocampal-neurons
#18
Nirnath Sah, Benjamin D Peterson, Susan T Lubejko, Carmen Vivar, Henriette van Praag
Adult hippocampal neurogenesis is an important form of structural and functional plasticity in the mature mammalian brain. The existing consensus is that GABA regulates the initial integration of adult-born neurons, similar to neuronal development during embryogenesis. Surprisingly, virus-based anatomical tracing revealed that very young, one-week-old, new granule cells in male C57Bl/6 mice receive input not only from GABAergic interneurons, but also from multiple glutamatergic cell types, including mature dentate granule cells, area CA1-3 pyramidal cells and mossy cells...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28883534/biological-effects-of-dosing-aerobic-exercise-and-neuromuscular-electrical-stimulation-in-rats
#19
Stefania Dalise, Loredana Cavalli, Harmanvir Ghuman, Brendon Wahlberg, Madeline Gerwig, Carmelo Chisari, Fabrisia Ambrosio, Michel Modo
Aerobic exercise (AE) and non-aerobic neuromuscular electric stimulation (NMES) are common interventions used in physical therapy. We explored the dose-dependency (low, medium, high) of these interventions on biochemical factors, such as brain derived neurotrophic growth factor (BDNF), vascular endothelial growth factor-A (VEGF-A), insulin-like growth factor-1 (IGF-1) and Klotho, in the blood and brain of normal rats, as well as a treadmill-based maximum capacity test (MCT). A medium dose of AE produced the most improvement in MCT with dose-dependent changes in Klotho in the blood...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28883047/intrinsic-exercise-capacity-in-rats-influences-dopamine-neuroplasticity-induced-by-physical-training
#20
Patricia C R Rabelo, Nayara Abreu Coelho Horta, Letícia Maria Souza Cordeiro, Maristela O Poletini, Cândido Celso Coimbra, Raphael Escorsim Szawka, Danusa Dias Soares
The study evaluates whether the intrinsic capacity for physical exercise influences dopamine neuroplasticity induced by physical training. Male rats were submitted to 3 progressive tests until fatigue. Based on the maximal time of exercise (TE), rats were considered as low-performance (LP), standard-performance (SP) or high-performance (HP) to exercise. Eight animals from each group (LP, SP and HP) were randomly subdivided in sedentary (SED) or trained (TR). Physical training was performed during six weeks...
September 7, 2017: Journal of Applied Physiology
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