keyword
MENU ▼
Read by QxMD icon Read
search

Muscle memory

keyword
https://www.readbyqxmd.com/read/28213398/foxo-integration-of-insulin-signaling-with-glucose-and-lipid-metabolism
#1
Sojin Lee, Henry H Dong
The forkhead box O family consists of FoxO1, FoxO3, FoxO4 and FoxO6 proteins in mammals. Expressed ubiquitously in the body, the four FoxO isoforms share in common the amino DNA binding domain, known as "forkhead box" domain. They mediate the inhibitory action of insulin or insulin-like growth factor on key functions involved in cell metabolism, growth, differentiation, oxidative stress, senescence, autophagy and aging. Genetic mutations in FoxO genes or abnormal expression of FoxO proteins are associated with metabolic disease, cancer or altered lifespan in humans and animals...
February 17, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28202888/sarcopenia-and-its-relationship-with-falling-among-outpatients-attending-a-geriatric-and-memory-clinic-at-kyorin-university-hospital
#2
Masamichi Tanaka, Kumiko Nagai, Hitomi Koshiba, Toshifumi Matui, Koichi Kozaki
AIM: The aim of the present study was to investigate the prevalence of sarcopenia in outpatients attending a geriatric and memory clinic and to investigate its relationship with falling. METHODS: We investigated the prevalence of sarcopenia (according to the EWGSOP criteria) among 283 outpatients that were all ≥65 years of age, and who attended the geriatric and memory clinic at Kyorin University Hospital. We also examined comorbidities, CGA items, and fall-related measures, and analyzed the relationships between these factors and sarcopenia...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/28202784/learning-to-predict-and-control-the-physics-of-our-movements
#3
Reza Shadmehr
When we hold an object in our hand, the mass of the object alters the physics of our arm, changing the relationship between motor commands that our brain sends to our arm muscles and the resulting motion of our hand. If the object is unfamiliar to us, our first movement will exhibit an error, producing a trajectory that is different from the one we had intended. This experience of error initiates learning in our brain, making it so that on the very next attempt our motor commands partially compensate for the unfamiliar physics, resulting in smaller errors...
February 15, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28188326/incidental-retrieval-of-prior-emotion-mimicry
#4
Ralph Pawling, Alexander J Kirkham, Amy E Hayes, Steven P Tipper
When observing emotional expressions, similar sensorimotor states are activated in the observer, often resulting in physical mimicry. For example, when observing a smile, the zygomaticus muscles associated with smiling are activated in the observer, and when observing a frown, the corrugator brow muscles. We show that the consistency of an individual's facial emotion, whether they always frown or smile, can be encoded into memory. When the individuals are viewed at a later time expressing no emotion, muscle mimicry of the prior state can be detected, even when the emotion itself is task irrelevant...
February 10, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28175977/development-and-evaluation-of-a-novel-curved-biopsy-device-for-ct-guided-biopsy-of-lesions-unreachable-using-standard-straight-needle-trajectories
#5
Maximilian Franz Schulze-Hagen, Jochen Pfeffer, Markus Zimmermann, Martin Liebl, Saskia Freifrau von Stillfried, Christiane Kuhl, Philipp Bruners, Peter Isfort
PURPOSE: To evaluate the feasibility of a novel curved CT-guided biopsy needle prototype with shape memory to access otherwise not accessible biopsy targets. METHODS AND MATERIALS: A biopsy needle curved by 90° with specific radius was designed. It was manufactured using nitinol to acquire shape memory, encased in a straight guiding trocar to be driven out for access of otherwise inaccessible targets. Fifty CT-guided punctures were conducted in a biopsy phantom and 10 CT-guided punctures in a swine corpse...
February 7, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28168135/outcomes-of-bcg-induction-in-high-risk-non-muscle-invasive-bladder-cancer-patients-nmibc-a-retrospective-cohort-study
#6
Muhammad T Pirzada, Rashid Ghauri, Monis J Ahmed, Muhammad F Shah, Irfan Ul Islam Nasir, Jasim Siddiqui, Irfan Ahmed, Khurram Mir
Non-muscle-invasive bladder cancer (NMIBC) is categorized into high-risk and low-risk groups. Although, bacillus Calmette-Guerin (BCG) is the recommended adjuvant therapy of high-risk bladder tumor, optimal schedule (induction versus maintenance) of this therapy is a subject of debate. The objective was to evaluate outcomes of induction BCG in high-risk NMIBC patients at Shaukat Khanum Memorial Cancer Hospital & Research Centre, Pakistan and retrospective cohort study conducted in the department of urology, Shaukat Khanum Memorial Cancer Hospital & Research Centre, Pakistan...
January 5, 2017: Curēus
https://www.readbyqxmd.com/read/28151087/effects-of-isometric-hand-grip-muscle-contraction-on-young-adults-free-recall-and-recognition-memory
#7
Phillip D Tomporowski, Chelesa Albrecht, Daniel M Pendleton
PURPOSE: The purpose of this study was to determine if physical arousal produced by isometric hand-dynamometer contraction performed during word-list learning affects young adults' free recall or recognition memory. METHOD: Twenty-four young adults (12 female; Mage = 22 years) were presented with 4 20-item word lists. Moderate arousal was induced in 12 adults by an initial 30-s maximal hand-dynamometer squeeze with force productions of 50% maximum; low arousal was induced in 12 adults by an initial 1-s maximal dynamometer squeeze with force production of 10% maximum during learning...
March 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28135003/modulation-of-skeletal-muscle-contraction-by-myosin-phosphorylation
#8
Rene Vandenboom
The striated muscle sarcomere is a highly organized and complex enzymatic and structural organelle. Evolutionary pressures have played a vital role in determining the structure-function relationship of each protein within the sarcomere. A key part of this multimeric assembly is the light chain-binding domain (LCBD) of the myosin II motor molecule. This elongated "beam" functions as a biological lever, amplifying small interdomain movements within the myosin head into piconewton forces and nanometer displacements against the thin filament during the cross-bridge cycle...
December 6, 2016: Comprehensive Physiology
https://www.readbyqxmd.com/read/28108329/exercise-increases-mitochondrial-complex-i-activity-and-drp1-expression-in-the-brains-of-aged-mice
#9
Aaron M Gusdon, Jason Callio, Giovanna Distefano, Robert M O'Doherty, Bret H Goodpaster, Paul M Coen, Charleen T Chu
Exercise is known to have numerous beneficial effects. Recent studies indicate that exercise improves mitochondrial energetics not only in skeletal muscle but also in other tissues. While exercise elicits positive effects on memory, neurogenesis, and synaptic plasticity, the effects of exercise on brain mitochondrial energetics remain relatively unknown. Herein, we studied the effects of exercise training in old and young mice on brain mitochondrial energetics, in comparison to known effects on peripheral tissues that utilize fatty acid oxidation...
January 18, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28099477/chronic-maternal-low-protein-diet-in-mice-affects-anxiety-night-time-energy-expenditure-and-sleep-patterns-but-not-circadian-rhythm-in-male-offspring
#10
Randy F Crossland, Alfred Balasa, Rajesh Ramakrishnan, Sangeetha K Mahadevan, Marta L Fiorotto, Ignatia B Van den Veyver
Offspring of murine dams chronically fed a protein-restricted diet have an increased risk for metabolic and neurobehavioral disorders. Previously we showed that adult offspring, developmentally exposed to a chronic maternal low-protein (MLP) diet, had lower body and hind-leg muscle weights and decreased liver enzyme serum levels. We conducted energy expenditure, neurobehavioral and circadian rhythm assays in male offspring to examine mechanisms for the body-weight phenotype and assess neurodevelopmental implications of MLP exposure...
2017: PloS One
https://www.readbyqxmd.com/read/28087666/dysregulation-of-b-cell-repertoire-formation-in-myasthenia-gravis-patients-revealed-through-deep-sequencing
#11
Jason A Vander Heiden, Panos Stathopoulos, Julian Q Zhou, Luan Chen, Tamara J Gilbert, Christopher R Bolen, Richard J Barohn, Mazen M Dimachkie, Emma Ciafaloni, Teresa J Broering, Francois Vigneault, Richard J Nowak, Steven H Kleinstein, Kevin C O'Connor
Myasthenia gravis (MG) is a prototypical B cell-mediated autoimmune disease affecting 20-50 people per 100,000. The majority of patients fall into two clinically distinguishable types based on whether they produce autoantibodies targeting the acetylcholine receptor (AChR-MG) or muscle specific kinase (MuSK-MG). The autoantibodies are pathogenic, but whether their generation is associated with broader defects in the B cell repertoire is unknown. To address this question, we performed deep sequencing of the BCR repertoire of AChR-MG, MuSK-MG, and healthy subjects to generate ∼518,000 unique VH and VL sequences from sorted naive and memory B cell populations...
February 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28038406/beta-hydroxy-beta-methylbutyrate-hmb-ameliorates-age-related-deficits-in-water-maze-performance-especially-in-male-rats
#12
Daniel G Kougias, Emily R Hankosky, Joshua M Gulley, Janice M Juraska
Beta-hydroxy-beta-methylbutyrate (HMB) is commonly supplemented to maintain muscle in elderly and clinical populations and has potential as a nootropic. Previously, we have shown that in both male and female rats, long-term HMB supplementation prevents age-related dendritic shrinkage within the medial prefrontal cortex (mPFC) and improves cognitive flexibility and working memory performance that are both age- and sex-specific. In this study, we further explore the cognitive effects by assessing visuospatial learning and memory with the Morris water maze...
March 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28007316/skill-learning-from-kinesthetic-feedback
#13
David Pinzon, Roberto Vega, Yerly Paola Sanchez, Bin Zheng
BACKGROUND: It is important for a surgeon to perform surgical tasks under appropriate guidance from visual and kinesthetic feedback. However, our knowledge on kinesthetic (muscle) memory and its role in learning motor skills remains elementary. OBJECTIVES: To discover the effect of exclusive kinesthetic training on kinesthetic memory in both performance and learning. METHODS: In Phase 1, a total of twenty participants duplicated five 2 dimensional movements of increasing complexity via passive kinesthetic guidance, without visual or auditory stimuli...
November 30, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27991461/the-viability-of-hearing-protection-device-fit-testing-at-navy-and-marine-corps-accession-points
#14
Jeremy Federman, Christon Duhon
INTRODUCTION: The viability of hearing protection device (HPD) verification (i.e., fit-testing) on a large scale was investigated to address this gap in a military accession environment. MATERIALS AND METHODS: Personal Attenuation Ratings (PARs) following self-fitted (SELF-Fit) HPDs were acquired from 320 US Marine Corps training recruits (87.5% male, 12.5% female) across four test protocols (1-, 3-, 5-, and 7- frequency). SELF-Fit failures received follow-up to assess potential causes...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27979856/2016-russell-ross-memorial-lecture-in-vascular-biology-molecular-cellular-mechanisms-in-the-progression-of-atherosclerosis
#15
Ira Tabas
Atherosclerosis is initiated by the subendothelial accumulation of apoB-lipoproteins, which initiates a sterile inflammatory response dominated by monocyte-macrophages but including all classes of innate and adaptive immune cells. These inflammatory cells, together with proliferating smooth muscle cells and extracellular matrix, promote the formation of subendothelial lesions or plaques. In the vast majority of cases, these lesions do not cause serious clinical symptoms, which is due in part to a resolution-repair response that limits tissue damage...
February 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27974618/neural-correlates-of-fear-in-the-periaqueductal-gray
#16
Thomas C Watson, Nadia L Cerminara, Bridget M Lumb, Richard Apps
: The dorsal and ventral periaqueductal gray (dPAG and vPAG, respectively) are embedded in distinct survival networks that coordinate, respectively, innate and conditioned fear-evoked freezing. However, the information encoded by the PAG during these survival behaviors is poorly understood. Recordings in the dPAG and vPAG in rats revealed differences in neuronal activity associated with the two behaviors. During innate fear, neuronal responses were significantly greater in the dPAG compared with the vPAG...
December 14, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27943179/a-cell-culture-system-to-investigate-the-presynaptic-control-of-subsynaptic-membrane-differentiation-at-the-neuromuscular-junction
#17
Nadine Schmidt, Sreya Basu, Stephan Kröger, Hans Rudolf Brenner
For decades the neuromuscular junction (NMJ) has been a favorite preparation to investigate basic mechanisms of synaptic function and development. As its function is to transmit action potentials in a 1:1 ratio from motor neurons to muscle fibers, the NMJ shows little or no functional plasticity, a property that makes it poorly suited to investigate mechanisms of use-dependent adaptations of synaptic function, which are thought to underlie learning and memory formation in the brain. On the other hand, the NMJ is unique in that the differentiation of the subsynaptic membrane is regulated by one major factor secreted from motor neurons, agrin...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27922934/psychometric-properties-of-the-chinese-version-of-the-menopause-specific-quality-of-life-questionnaire
#18
Guangning Nie, Hongyan Yang, Jian Liu, ChunMei Zhao, Xiaoyun Wang
OBJECTIVE: The Menopause-Specific Quality-of-Life (MENQOL) questionnaire was developed as a specific tool to measure the health-related quality-of-life of postmenopausal women. Thus far, the Chinese version questionnaire has not been subjected to psychometric assessment with a large sample. This study aims to evaluate the validity and reliability of the Chinese version of the MENQOL specific to postmenopausal women in China. METHODS: A total of 1,137 menopausal symptomatic and 491 menopausal asymptomatic women from eight cities in China were recruited using a convenience sampling method...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27914496/computed-tomography-derived-skeletal-muscle-index-a-novel-predictor-of-frailty-and-hospital-length-of-stay-after-transcatheter-aortic-valve-replacement
#19
Vishal Dahya, Jingjie Xiao, Carla M Prado, Penny Burroughs, Dan McGee, Aline C Silva, Julian E Hurt, Shafi G Mohamed, Thomas Noel, Wayne Batchelor
: To determine the prevalence of low skeletal muscle mass in patients undergoing transcatheter aortic valve replacement (TAVR) and whether skeletal muscle mass measured from preoperative computed tomography (CT) images provides value in predicting postoperative length of stay (LOS). BACKGROUND: There are limited data on the use of body composition as a frailty measure in TAVR patients and no studies have determined if this measure predicts LOS. METHODS: We studied 104 consecutive patients who underwent TAVR at Tallahassee Memorial Hospital from 2012 to 2016...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27909292/crystal-structures-of-the-tric-trimeric-intracellular-cation-channel-orthologues
#20
Go Kasuya, Masahiro Hiraizumi, Andrés D Maturana, Kaoru Kumazaki, Yuichiro Fujiwara, Keihong Liu, Yoshiko Nakada-Nakura, So Iwata, Keisuke Tsukada, Tomotaka Komori, Sotaro Uemura, Yuhei Goto, Takanori Nakane, Mizuki Takemoto, Hideaki E Kato, Keitaro Yamashita, Miki Wada, Koichi Ito, Ryuichiro Ishitani, Motoyuki Hattori, Osamu Nureki
Ca(2+) release from the sarcoplasmic reticulum (SR) and endoplasmic reticulum (ER) is crucial for muscle contraction, cell growth, apoptosis, learning and memory. The trimeric intracellular cation (TRIC) channels were recently identified as cation channels balancing the SR and ER membrane potentials, and are implicated in Ca(2+) signaling and homeostasis. Here we present the crystal structures of prokaryotic TRIC channels in the closed state and structure-based functional analyses of prokaryotic and eukaryotic TRIC channels...
December 2016: Cell Research
keyword
keyword
14408
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"