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https://www.readbyqxmd.com/read/27923177/the-effect-of-exergaming-on-knee-proprioception-in-older-men-a-randomized-controlled-trial
#1
Hassan Sadeghi, Mohammad Nazrul Hakim, Tengku Aizan Hamid, Saidon Bin Amri, Mohsen Razeghi, Mohammadreza Farazdaghi, Elham Shakoor
BACKGROUND: Proprioception is the ability to sense the body position, muscle sense, joint stability and posture. As balance decreases during the process of aging, knee proprioception has a critical role in body balance and daily activities. Exergaming has shown to be a potentially effective and more enjoyable form of exercise delivery. OBJECTIVE: The purpose of this study was to determine the effect of an 8-week Xbox Kinect exercise program on knee proprioception in healthy older adults...
November 23, 2016: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27920750/fluid-intelligence-as-a-mediator-of-the-relationship-between-executive-control-and-balanced-time-perspective
#2
Marcin Zajenkowski, Maciej Stolarski, Joanna Witowska, Oliwia Maciantowicz, Paweł Łowicki
This study examined the cognitive foundations of the balanced time perspective (BTP) proposed by Zimbardo and Boyd (1999). Although BTP is defined as the mental ability to switch effectively between different temporal perspectives, its connection with cognitive functioning has not yet been established. We addressed this by exploring the relationships between time perspectives and both fluid intelligence (measured with Raven's and Cattell's tests) and executive control (Go/No-go and anti-saccade tasks). An investigation conducted among Polish adults (N = 233) revealed that more balanced TP profile was associated with higher fluid intelligence, and higher executive control...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27920397/optimizing-combination-therapy-for-acute-lymphoblastic-leukemia-using-a-phenotypic-personalized-medicine-digital-health-platform-retrospective-optimization-individualizes-patient-regimens-to-maximize-efficacy-and-safety
#3
Dong-Keun Lee, Vivian Y Chang, Theodore Kee, Chih-Ming Ho, Dean Ho
Acute lymphoblastic leukemia (ALL) is a blood cancer that is characterized by the overproduction of lymphoblasts in the bone marrow. Treatment for pediatric ALL typically uses combination chemotherapy in phases, including a prolonged maintenance phase with oral methotrexate and 6-mercaptopurine, which often requires dose adjustment to balance side effects and efficacy. However, a major challenge confronting combination therapy for virtually every disease indication is the inability to pinpoint drug doses that are optimized for each patient, and the ability to adaptively and continuously optimize these doses to address comorbidities and other patient-specific physiological changes...
December 5, 2016: Journal of Laboratory Automation
https://www.readbyqxmd.com/read/27919796/the-bad-seed-gardener-deubiquitinases-in-the-cancer-stem-cell-signaling-network-and-therapeutic-resistance
#4
REVIEW
Guan-Zhong Qiu, Wei Sun, Ming-Zhu Jin, Jing Lin, Pei-Gang Lu, Wei-Lin Jin
Tumors are comprised of highly heterogeneous populations of cells, of which only a small subset of stem-like cells possess the ability to regenerate tumors in vivo. These rare cancer stem cells (CSCs) have been regarded as the "bad seeds" accounted for tumor initiation, progression, metastasis, relapse and therapeutic resistance. CSC-targeted therapy seems to be a better avenue for radical cure of cancer. Deubiquitinases (DUBs), specifically disassembling ubiquitin chains, have been demonstrated to play an important role in rigidly maintaining the balance between ubiquitination and deubiquitination for protein quality control and homeostasis in normal circumstances...
December 2, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27917178/a-comparative-nitrogen-balance-and-productivity-analysis-of-legume-and-non-legume-supported-cropping-systems-the-potential-role-of-biological-nitrogen-fixation
#5
Pietro P M Iannetta, Mark Young, Johann Bachinger, Göran Bergkvist, Jordi Doltra, Rafael J Lopez-Bellido, Michele Monti, Valentini A Pappa, Moritz Reckling, Cairistiona F E Topp, Robin L Walker, Robert M Rees, Christine A Watson, Euan K James, Geoffrey R Squire, Graham S Begg
The potential of biological nitrogen fixation (BNF) to provide sufficient N for production has encouraged re-appraisal of cropping systems that deploy legumes. It has been argued that legume-derived N can maintain productivity as an alternative to the application of mineral fertilizer, although few studies have systematically evaluated the effect of optimizing the balance between legumes and non N-fixing crops to optimize production. In addition, the shortage, or even absence in some regions, of measurements of BNF in crops and forages severely limits the ability to design and evaluate new legume-based agroecosystems...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27914707/adiponectin-alters-renal-calcium-and-phosphate-excretion-through-regulation-of-klotho-expression
#6
Joseph M Rutkowski, Johanne Pastor, Kai Sun, Sun K Park, I Alexandru Bobulescu, Christopher T Chen, Orson W Moe, Philipp E Scherer
The kidney controls systemic calcium and phosphate levels and disturbances of its control mechanisms can lead to a variety of diseases. The insulin-sensitizing adipokine adiponectin is renoprotective and accelerates functional recovery following renal injury. However, unlike other adipokines, adiponectin is reduced in obesity. High adiponectin levels are also correlated with bone loss, suggestive of an additional action in mineral metabolism. Using knockout, wild-type, and adiponectin-overexpressing transgenic mice, we sought to identify the mechanistic basis for adiponectin's ability to regulate calcium and phosphate balance at the level of the kidney...
November 30, 2016: Kidney International
https://www.readbyqxmd.com/read/27914317/the-disgust-related-images-dirti-database-validation-of-a-novel-standardized-set-of-disgust-pictures
#7
Anke Haberkamp, Julia Anna Glombiewski, Filipp Schmidt, Antonia Barke
Selecting appropriate stimuli is a major challenge of affective research. Although several standardized databases for affective pictures exist, none of them focus on discrete emotions such as disgust. Validated pictures inducing discrete emotions are still limited, and this presents a problem for researchers interested in studying different facets of disgust. In this paper, we introduce the DIsgust-RelaTed-Images (DIRTI) picture set. The set consists of 240 disgust-inducing pictures divided into six categories (food, animals, body products, injuries/infections, death, and hygiene)...
November 23, 2016: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/27914202/probiotic-roles-of-lactobacillus-spp-in-swine-insights-from-gut-microbiota
#8
REVIEW
Valerie Diane V Valeriano, Marilen P Balolong, Dae-Kyung Kang
The use of lactobacilli as probiotics in swine has been gaining attention due to their ability to improve growth performance and carcass quality, prevent gastrointestinal infection, and most importantly, their 'generally recognised as safe' status. Previous studies support the potential of lactobacilli to regulate host immune systems, enhance gut metabolic capacities, and maintain balance in the gut microbiota. Research on swine gut microbiota has revealed complex gut microbial community structure and showed the importance of Lactobacillus to the host's health...
December 3, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27911871/inhibition-of-cancer-antioxidant-defense-by-natural-compounds
#9
Alicja Sznarkowska, Anna Kostecka, Katarzyna Meller, Krzysztof Piotr Bielawski
All classic, non-surgical anticancer approaches like chemotherapy, radiotherapy or photodynamic therapy kill cancer cells by inducing severe oxidative stress. Even tough chemo- and radiotherapy are still a gold standard in cancer treatment, the identification of non-toxic compounds that enhance their selectivity, would allow for lowering their doses, reduce side effects and risk of second cancers. Many natural products have the ability to sensitize cancer cells to oxidative stress induced by chemo- and radiotherapy by limiting antioxidant capacity of cancer cells...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911769/reductive-carboxylation-is-a-major-metabolic-pathway-in-the-retinal-pigment-epithelium
#10
Jianhai Du, Aya Yanagida, Kaitlen Knight, Abbi L Engel, Anh Huan Vo, Connor Jankowski, Martin Sadilek, Van Thi Bao Tran, Megan A Manson, Aravind Ramakrishnan, James B Hurley, Jennifer R Chao
The retinal pigment epithelium (RPE) is a monolayer of pigmented cells that requires an active metabolism to maintain outer retinal homeostasis and compensate for oxidative stress. Using (13)C metabolic flux analysis in human RPE cells, we found that RPE has an exceptionally high capacity for reductive carboxylation, a metabolic pathway that has recently garnered significant interest because of its role in cancer cell survival. The capacity for reductive carboxylation in RPE exceeds that of all other cells tested, including retina, neural tissue, glial cells, and a cancer cell line...
December 1, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911755/transformation-of-vestibular-signals-for-the-control-of-standing-in-humans
#11
Patrick A Forbes, Billy L Luu, H F Machiel Van der Loos, Elizabeth A Croft, J Timothy Inglis, Jean-Sébastien Blouin
: During standing balance, vestibular signals encode head movement and are transformed into coordinates that are relevant to maintaining upright posture of the whole body. This transformation must account for head-on-body orientation as well as the muscle actions generating the postural response. Here, we investigate whether this transformation is dependent upon a muscle's ability to stabilize the body along the direction of a vestibular disturbance. Subjects were braced on top of a robotic balance system that simulated the mechanics of standing while being exposed to an electrical vestibular stimulus that evoked a craniocentric vestibular error of head roll...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911566/pedometer-step-count-targets-during-pulmonary-rehabilitation-in-copd-a-randomized-controlled-trial
#12
Claire M Nolan, Matthew Maddocks, Jane L Canavan, Sarah E Jones, Veronica Delogu, Djeya Kaliaraju, Winston Banya, Samantha S C Kon, Michael I Polkey, William D-C Man
RATIONALE: Increasing physical activity is a key therapeutic aim in COPD. Pulmonary rehabilitation (PR) improves exercise capacity, but there is conflicting evidence regarding its ability to improve physical activity levels. OBJECTIVE: To determine whether using pedometers as an adjunct to PR can enhance time spent in at least moderate intensity physical activity (time ≥ 3METs) in people with COPD. METHODS: In this single-blinded randomized controlled trial, participants were assigned 1:1 to receive control (PR comprising 8 weeks, two supervised sessions/week) or intervention (PR plus pedometer-directed step targets, reviewed weekly for 8 weeks)...
December 2, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27910743/decoding-the-polyphyletic-flexibility-of-allosteric-modular-networks-progress-and-perspectives
#13
Yanan Yu, Zhong Wang, Yongyan Wang
Advances in identifying architecture of modules and elucidating their modes of action are gradually improving the decoding of complex relationships between phenotypic robustness and genotypic networks. However, approaches to detecting modules have largely focused on identifying modules in static graphs. In this review, we attempt to reveal the mechanism of polyphyletic architectural transformation based on modular boundary evolutions and different oscillating factors. With the rapid progress in probing into the detailed structural model of modular networks, flexible modular organization manifests a key adaptive balancing ability of allosterically regulating or reconstructing intermodular and intramodular states to uncover the novel biological alterations beyond engineering properties...
2016: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/27909095/dynamic-shifts-in-large-scale-brain-network-balance-as-a-function-of-arousal
#14
Christina B Young, Gal Raz, Daphne Everaerd, Christian F Beckmann, Indira Tendolkar, Talma Hendler, Guillén Fernández, Erno J Hermans
: The ability to temporarily prioritize rapid and vigilant reactions over slower higher-order cognitive functions is essential for adaptive responding to threat. This reprioritization is believed to reflect shifts in resource allocation between large-scale brain networks that support these cognitive functions, including the salience and executive control networks. How changes in communication within and between such networks dynamically unfold as a function of threat-related arousal, however, remains unknown...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27907846/modelling-life-satisfaction-and-adjustment-to-trauma-in-children-exposed-to-ongoing-military-violence-an-exploratory-study-in-palestine
#15
Guido Veronese, Alessandro Pepe, Alaa Jaradah, Feda Al Muranak, Husam Hamdouna
Exposure to war and ongoing political violence increases mental health risks among children, especially in terms of posttraumatic stress disorder (PTSD), and depressive or somatic symptoms. However, an exclusive focus on negative functioning can lead to underestimating the coping abilities and natural potential for adjusting to trauma of war-affected children at different developmental phases. Using structural equation modelling, we tested the extent to which data gathered in a predominantly nonclinical sample of Palestinian children (N=1276) living in refugee camps supported a conceptual model in which the relationship between subjective wellbeing and the effects of trauma is mainly top-down in direction...
November 28, 2016: Child Abuse & Neglect
https://www.readbyqxmd.com/read/27905297/altered-thermoregulatory-responses-in-heart-failure-patients-exercising-in-the-heat
#16
Bryce N Balmain, Ollie Jay, Surendran Sabapathy, Danielle Royston, Glenn M Stewart, Rohan Jayasinghe, Norman R Morris
Heart failure (HF) patients appear to exhibit impaired thermoregulatory capacity during passive heating, as evidenced by diminished vascular conductance. Although some preliminary studies have described the thermoregulatory response to passive heating in HF, responses during exercise in the heat remain to be described. Therefore, the aim of this study was to compare thermoregulatory responses in HF and controls (CON) during exercise in the heat. Ten HF (NYHA classes I-II) and eight CON were included. Core temperature (Tc), skin temperature (Tsk), and cutaneous vascular conductance (CVC) were assessed at rest and during 1 h of exercise at 60% of maximal oxygen uptake...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27904150/regulating-the-balance-between-necroptosis-apoptosis-and-inflammation-by-inhibitors-of-apoptosis-proteins
#17
REVIEW
Lazaros Vasilikos, Lisanne M Spilgies, Janin Knop, WWei-Lynn Wong
Understanding how Inhibitors of APoptosis proteins (IAPs) regulate apoptosis and necroptosis has been fast-forwarded by the use of Smac mimetics to deplete or inhibit the IAPs, specifically cIAP1& 2 and XIAP. The loss or inhibition of cIAP1, cIAP2 and XIAP causes the majority of cells to be sensitized to death receptor induced cell death, particularly tumour necrosis factor (TNF). Mouse genetics shows that there is some functional redundancy and the use of Smac mimetics has allowed us to understand how changing the composition of proteins recruited to TNF receptor 1 upon TNF ligation can alter protein complex formation and activation of apoptosis or necroptosis, particularly when caspases are inhibited...
December 1, 2016: Immunology and Cell Biology
https://www.readbyqxmd.com/read/27903719/the-segregation-and-integration-of-distinct-brain-networks-and-their-relationship-to-cognition
#18
Jessica R Cohen, Mark D'Esposito
: A critical feature of the human brain that gives rise to complex cognition is its ability to reconfigure its network structure dynamically and adaptively in response to the environment. Existing research probing task-related reconfiguration of brain network structure has concluded that, although there are many similarities in network structure during an intrinsic, resting state and during the performance of a variety of cognitive tasks, there are meaningful differences as well. In this study, we related intrinsic, resting state network organization to reconfigured network organization during the performance of two tasks: a sequence tapping task, which is thought to probe motor execution and likely engages a single brain network, and an n-back task, which is thought to probe working memory and likely requires coordination across multiple networks...
November 30, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27903702/cold-acclimation-improves-chill-tolerance-in-the-migratory-locust-through-preservation-of-ion-balance-and-membrane-potential
#19
Mads Kuhlmann Andersen, Rasmus Folkersen, Heath A MacMillan, Johannes Overgaard
Most insects have the ability to alter their cold tolerance in response to temporal temperature fluctuations, and recent studies have shown that insect cold tolerance is closely tied to the ability to maintain transmembrane ion-gradients that are important for the maintenance of cell membrane potential (Vm). Accordingly, several studies have suggested a link between preservation of Vm and cellular survival after cold stress, but none have measured Vm in this context. We tested this hypothesis by acclimating locusts (Locusta migratoria) to high (31°C) and low temperature (11°C) for four days before exposing them to cold stress (0°C) for up to 48 hours and subsequently measuring ion balance, cell survival, muscle Vm, and whole animal performance...
November 30, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27903457/glass-forming-ability-of-compounds-in-marketed-amorphous-drug-products
#20
Nicole Wyttenbach, Martin Kuentz
This note is about the glass-forming ability (GFA) of drugs marketed as amorphous solid dispersions or as pure amorphous compounds. A thermoanalytical method was complemented with an in silico study, which made use of molecular properties that were identified earlier as being relevant for GFA. Thus, molar volume together with effective numbers of torsional bonds and hydrogen bonding were used to map drugs that are as amorphous products on the market either as solid dispersion of without co-processed carrier as amorphous drug in a solid dosage form...
November 27, 2016: European Journal of Pharmaceutics and Biopharmaceutics
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