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https://www.readbyqxmd.com/read/29678773/microrna-132-is-associated-with-the-cognition-improvement-following-voluntary-exercise-in-samp8-mice
#1
Jingde Dong, Yi Liu, Zhen Zhan, Xiaoshan Wang
The senescence-accelerated SAMP8 mouse is characterized by progressive cognitive decline and is considered to be a specific model of Alzheimer's disease (AD). A growing body of evidence indicates that physical exercise suppresses age-related cognitive decline. In the current study, we investigated the influence of voluntary wheel running on cognitive function in SAMP8 mice. We found that voluntary physical exercise ameliorated cognition decline and suppressed hippocampal neurodegeneration in SAMP8 mice. MicroRNA-132 (miR-132) is a short non-coding RNA which is enriched in the brain and is implicated in the regulation of neuronal activity and cognitive function...
April 17, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29678606/ketogenic-diet-high-intensity-interval-training-hiit-and-memory-training-in-the-treatment-of-mild-cognitive-impairment-a-case-study
#2
Kaitlyn Dahlgren, Kelly J Gibas
Alzheimer's disease (AD) deaths have increased by 89% since 2000. This alarming trajectory of neurological disease highlights the failure of current best practice. Deteriorating brain fuel supply is the nemesis of intact neurological health. Cerebral hypo-metabolism associated with AD occurs years before onset. Both the ketogenic diet and calorie restriction (fasting) lead to a compensatory rise in ketones to improve energy deficits in the brain derived from cerebral insulin resistance. Two forms of ketone bodies, β-hydroxybutyrate and acetoacetate, fuel the brain during starvation, fasting and strenuous exercise...
April 11, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29672446/the-effects-of-treadmill-exercise-on-autophagy-in-hippocampus-of-app-ps1-transgenic-mice
#3
Na Zhao, Xianliang Zhang, Chenghui Song, Youcai Yang, Biao He, Bo Xu
The β-amyloid (Aβ) deposition is one of the major pathological hallmark of Alzheimer's disease. Dysfunction in autophagy has been reported to lead to the Aβ deposition. The current study aimed to investigate the effects of treadmill exercise on autophagy activity and the Aβ deposition and to demonstrate whether exercise-induced reduction in the Aβ deposition was associated with changes in autophagy activity. APP/PS1 transgenic mice were divided into transgenic sedentary (TG-SED, n=12) and transgenic exercise (TG-EXE, n=12) groups...
April 18, 2018: Neuroreport
https://www.readbyqxmd.com/read/29662895/heme-oxygenase-1-activity-as-a-correlate-to-exercise-mediated-amelioration-of-cognitive-decline-and-neuropathological-alterations-in-an-aging-rat-model-of-dementia
#4
Andrea Kurucz, Mariann Bombicz, Rita Kiss, Dániel Priksz, Balázs Varga, Tibor Hortobágyi, György Trencsényi, Renáta Szabó, Anikó Pósa, Rudolf Gesztelyi, Zoltán Szilvássy, Béla Juhász
Alzheimer's disease (AD) is a neurodegenerative disorder with cognitive impairment. Physical exercise has long been proven to be beneficial in the disorder. The present study was designed to examine the effect of voluntary exercise on spatial memory, imaging, and pathological abnormalities. Particular focus has been given to the role of heme oxygenase-1 (HO-1)-an important cellular cytoprotectant in preserving mental acuity-using an aging rat model of dementia. Male and female Wistar rats were segregated into six groups-namely, (i) aged sedentary (control) females (ASF, n = 8); (ii) aged sedentary (control) males (ASM, n = 8); (iii) aged running females (ARF, n = 8); (iv) aged running males (ARM, n = 8); (v) young control females (YCF, n = 8); and (vi) young control males (YCM, n = 8)...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29604402/effects-of-aquatic-and-land-based-exercises-on-amyloid-beta-heat-shock-protein-27-and-pulse-wave-velocity-in-elderly-women
#5
Ji-Hyeon Kim, Young-Suk Jung, Jong-Won Kim, Min-Seong Ha, Soo-Min Ha, Do-Yeon Kim
BACKGROUND: Alzheimer's disease is a neurodegenerative brain disease resulting from the deterioration of neuronal cells and vascular dementia, the latter of which results from cerebrovascular disorders. Exercise is effective in preventing and treating degenerative brain diseases as it activates blood flow to the brain, increases nerve production in the hippocampus, and promotes the expression of synaptic plasticity-related proteins. Therefore, this study investigated the effects of 16-week aquatic and land-based exercise programs on amyloid beta (Aβ), heat shock protein (HSP) 27 levels, and pulse wave velocity (PWV)...
March 28, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29580264/improving-recovery-and-outcomes-every-day-after-the-icu-improve-study-protocol-for-a-randomized-controlled-trial
#6
Sophia Wang, Jessica Hammes, Sikandar Khan, Sujuan Gao, Amanda Harrawood, Stephanie Martinez, Lyndsi Moser, Anthony Perkins, Frederick W Unverzagt, Daniel O Clark, Malaz Boustani, Babar Khan
BACKGROUND: Delirium affects nearly 70% of older adults hospitalized in the intensive care unit (ICU), and many of those will be left with persistent cognitive impairment or dementia. There are no effective and scalable recovery models to remediate ICU-acquired cognitive impairment and its attendant elevated risk for dementia or Alzheimer disease (AD). The Improving Recovery and Outcomes Every Day after the ICU (IMPROVE) trial is an ongoing clinical trial which evaluates the efficacy of a combined physical exercise and cognitive training on cognitive function among ICU survivors 50 years and older who experienced delirium during an ICU stay...
March 27, 2018: Trials
https://www.readbyqxmd.com/read/29568075/inhibition-of-endothelial-nitric-oxide-synthase-reverses-the-effect-of-exercise-on-improving-cognitive-function-in-hypertensive-rats
#7
Liying Zhang, Haiqing Zheng, Jing Luo, Lili Li, Xiaona Pan, Ting Jiang, Chongjun Xiao, Zhong Pei, Xiquan Hu
Hypertension-induced endothelial dysfunction is associated with β-amyloid (Aβ) deposition, a typical pathology of Alzheimer's disease (AD). Endothelial nitric oxide synthase (eNOS) phosphorylation, impaired by phosphatidylinositol 3-kinase (PI3K)/protein kinase-B(Akt) pathway abnormalities in hypertensive rats, has a critical role in endothelial function. However, it is unknown whether eNOS participates in the hypertension-induced pathology of AD. In this study, we investigated the role of eNOS in Aβ deposition and cognitive function in stroke-prone spontaneously hypertensive (SHRSP) rats...
March 22, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29564062/protein-protein-interaction-analysis-of-alzheimer-s-disease-and-nafld-based-on-systems-biology-methods-unhide-common-ancestor-pathways
#8
Reza Karbalaei, Marzieh Allahyari, Mostafa Rezaei-Tavirani, Hamid Asadzadeh-Aghdaei, Mohammad Reza Zali
Aim: Analysis reconstruction networks from two diseases, NAFLD and Alzheimer`s diseases and their relationship based on systems biology methods. Background: NAFLD and Alzheimer`s diseases are two complex diseases, with progressive prevalence and high cost for countries. There are some reports on relation and same spreading pathways of these two diseases. In addition, they have some similar risk factors, exclusively lifestyle such as feeding, exercises and so on...
2018: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/29562536/update-on-vascular-cognitive-impairment-associated-with-subcortical-small-vessel-disease
#9
Anders Wallin, Gustavo C Román, Margaret Esiri, Petronella Kettunen, Johan Svensson, George P Paraskevas, Elisabeth Kapaki
Subcortical small-vessel disease (SSVD) is a disorder well characterized from the clinical, imaging, and neuropathological viewpoints. SSVD is considered the most prevalent ischemic brain disorder, increasing in frequency with age. Vascular risk factors include hypertension, diabetes, hyperlipidemia, elevated homocysteine, and obstructive sleep apnea. Ischemic white matter lesions are the hallmark of SSVD; other pathological lesions include arteriolosclerosis, dilatation of perivascular spaces, venous collagenosis, cerebral amyloid angiopathy, microbleeds, microinfarcts, lacunes, and large infarcts...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29557723/in-silico-identification-and-design-of-potent-peptide-inhibitors-against-pdz-3-domain-of-post-synaptic-density-protein-psd-95
#10
Tanuj Sharma, Mohammad Imran Siddiqi
Unique intrinsic properties of peptides like low toxicity, high biological activity and specificity make them attractive therapeutic agents. PDZ binding peptide inhibitors have been demonstrated for curing of Alzheimer, Parkinson, Dementia and other central nervous system ailments. In this article, we report the successful use of an integrated computational protocol to analyze the structural basis of how peptides bind to the shallow groove of the third PDZ domain (PDZ3) from the Post Synaptic Density (PSD-95) protein...
March 20, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29550783/study-protocol-for-vitality-a-proof-of-concept-randomised-controlled-trial-of-exercise-training-or-complex-mental-and-social-activities-to-promote-cognition-in-adults-with-chronic-stroke
#11
John R Best, Janice J Eng, Jennifer C Davis, Robin Hsiung, Peter A Hall, Laura E Middleton, Peter Graf, Charles H Goldsmith, Teresa Liu-Ambrose
INTRODUCTION: Cerebrovascular disease-such as stroke-is the second most common cause of dementia (ie, vascular dementia). Specifically, a stroke increases one's risk for dementia by a factor of two. Thus, stroke survivors represent a target population in need of intervention strategies to promote cognitive function and prevent dementia. The current standard of care in stroke rehabilitation does not adequately address the significant cognitive consequences of stroke, especially for those who are in the chronic phase (ie, >12 months since an index stroke)...
March 17, 2018: BMJ Open
https://www.readbyqxmd.com/read/29545708/the-effect-of-exercise-combined-with-a-cognitive-enhancement-group-training-program-on-cognition-and-depression-in-the-community-dwelling-elderly
#12
Hwan-Hee Kim, Nam-Hae Jung
[Purpose] In this study, we investigated the effects of combining exercise with a cognitive-enhancement group program on cognition and depression in a group of community-dwelling elderly people. [Subjects and Methods] The study's subjects consisted of 30 community-dwelling elderly people of both genders, whose average age was 78 years. They participated in a program of physical exercise combined with a cognitive-enhancement group training program. This consisted of sessions lasting 60 minutes that took place once a week over 3 months...
February 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29542360/effects-of-physical-exercise-on-the-p300-of-elderly-with-alzheimer-s-disease
#13
Renata Valle Pedroso, José Maria Cancela, Carlos Ayán, Angelica Miki Stein, Gilson Fuzaro, José Luiz Riani Costa, Francisco J Fraga, Ruth Ferreira Santos-Galduróz
BACKGROUND: Evidence regarding the benefits of physical activity on the mental processing information of patients with Alzheimer's disease assessed objectively is scarce and can be observed through event-related potentials, such as the P300. The aim of the study was to identify the effects of physical exercises on mental processing information in the elderly with Alzheimer's disease through neurophysiological measures (P300 amplitude and latency) and reaction time. METHODS: A total of 31 patients with Alzheimer's disease participated in this study: 14 in functional exercise (FE) group and 17 in social gathering (SG) group who carried out three 1-hour sessions per week of FE and SG activities, respectively, for a 12-week period...
March 15, 2018: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/29527475/an-acute-bout-of-aerobic-or-strength-exercise-specifically-modifies-circulating-exerkine-levels-and-neurocognitive-functions-in-elderly-individuals-with-mild-cognitive-impairment
#14
Chia-Liang Tsai, Jozef Ukropec, Barbara Ukropcová, Ming-Chyi Pai
Although exercise is an effective way to decrease the risk of developing Alzheimer's disease, the biological basis for such benefits from the different exercise modes remains elusive. The present study thus aimed (i) to investigate the effects of acute aerobic or resistance exercise on neurocognitive performances and molecular markers when performing a cognitive task involving executive functioning in older adults with amnestic mild cognitive impairment (aMCI), and (ii) to explore relationships of acute exercise-induced neurocognitive changes with changes in circulating levels of neuroprotective growth factors (e...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29522820/interventional-programmes-to-improve-cognition-during-healthy-and-pathological-ageing-cortical-modulations-and-evidence-for-brain-plasticity
#15
REVIEW
Jesús Cespón, Carlo Miniussi, Maria Concetta Pellicciari
A growing body of evidence suggests that healthy elderly individuals and patients with Alzheimer's disease retain an important potential for neuroplasticity. This review summarizes studies investigating the modulation of neural activity and structural brain integrity in response to interventions involving cognitive training, physical exercise and non-invasive brain stimulation in healthy elderly and cognitively impaired subjects (including patients with mild cognitive impairment (MCI) and Alzheimer's disease)...
March 6, 2018: Ageing Research Reviews
https://www.readbyqxmd.com/read/29519963/-non-pharmacological-interventions-to-treat-clinical-symptoms-in-patients-with-dementia
#16
Hiroaki Kazui
Previous systematic reviews of non-pharmacological interventions for clinical symptoms in dementia patients have confirmed the effectiveness of cognitive stimulation therapy (CST) for cognitive impairment, exercise therapy for activities of daily living, and music therapy and behavior management techniques for behavioral and psychological symptoms of dementia (BPSD). A Japanese version of CST has been developed and is available, but standardized exercise therapy and music therapy have not been developed. It is also important for informal and formal caregivers to learn behavior management techniques...
March 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29501470/changes-in-cognitive-function-after-a-12-week-exercise-intervention-in-adults-with-down-syndrome
#17
Lauren T Ptomey, Amanda N Szabo, Erik A Willis, Anna M Gorczyca, J Leon Greene, Jessica C Danon, Joseph E Donnelly
BACKGROUND: Between 250,000 and 400,000 individuals in the United States are diagnosed with Down syndrome (DS). Nearly all adults with DS will develop Alzheimer's disease pathology starting in their thirties. Recent studies suggest that increased physical activity (PA) may be important for maintaining components of cognition, including memory. OBJECTIVE: The purpose of this study was to evaluate changes in cognitive function after completion of a 12-week exercise intervention in adults with DS...
February 26, 2018: Disability and Health Journal
https://www.readbyqxmd.com/read/29480042/memorcise-and-alzheimer-s-disease
#18
Paul D Loprinzi, Emily Frith, Pamela Ponce
Alzheimer's disease (AD) is a debilitating disease influencing a multitude of outcomes, including memory function. Recent work suggests that memory may be influenced by exercise ("memorcise"), even among those with AD. The present narrative review details 1) the underlying mechanisms of AD; 2) whether exercise has a protective effect in preventing AD; 3) the mechanisms through which exercise may help to prevent AD; 4) the mechanisms through which exercise may help attenuate the progression of AD severity among those with existing AD; 5) the effects and mechanisms through which exercise is associated with memory among those with existing AD; and 6) exercise recommendations for those with existing AD...
February 26, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29466242/mindfulness-and-meditation-treating-cognitive-impairment-and-reducing-stress-in-dementia
#19
Jesse Russell-Williams, Wafa Jaroudi, Tania Perich, Siobhan Hoscheidt, Mohamad El Haj, Ahmed A Moustafa
This study investigates the relationship between mindfulness, meditation, cognition and stress in people with Alzheimer's disease (AD), dementia, mild cognitive impairment and subjective cognitive decline. Accordingly, we explore how the use of meditation as a behavioural intervention can reduce stress and enhance cognition, which in turn ameliorates some dementia symptoms. A narrative review of the literature was conducted with any studies using meditation as an intervention for dementia or dementia-related memory conditions meeting inclusion criteria...
February 21, 2018: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29463708/environmental-enrichment-and-exercise-are-better-than-social-enrichment-to-reduce-memory-deficits-in-amyloid-beta-neurotoxicity
#20
Mariza G Prado Lima, Helen L Schimidt, Alexandre Garcia, Letícia R Daré, Felipe P Carpes, Ivan Izquierdo, Pâmela B Mello-Carpes
Recently, nongenetic animal models to study the onset and development of Alzheimer's disease (AD) have appeared, such as the intrahippocampal infusion of peptides present in Alzheimer amyloid plaques [i.e., amyloid-β (Aβ)]. Nonpharmacological approaches to AD treatment also have been advanced recently, which involve combinations of behavioral interventions whose specific effects are often difficult to determine. Here we isolate the neuroprotective effects of three of these interventions-environmental enrichment (EE), anaerobic physical exercise (AnPE), and social enrichment (SE)-on Aβ-induced oxidative stress and on impairments in learning and memory induced by Aβ...
February 20, 2018: Proceedings of the National Academy of Sciences of the United States of America
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