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https://www.readbyqxmd.com/read/28102007/effects-of-diet-restriction-and-diet-complexity-on-life-history-strategies-in-side-blotched-lizards-uta-stansburiana
#1
Heather M Skinner, Andrew M Durso, Lorin A Neuman-Lee, Susan L Durham, Sarah D Mueller, Susannah S French
Organisms must balance energy invested into self-maintenance, reproduction, and somatic growth over their lifetime. In this study, the effects of diet restriction and diet complexity on side-blotched lizards (Uta stansburiana) were analyzed. Thirty male lizards, housed in the laboratory, were fed either an ad libitum or a restricted diet for 18 days (phase 1). Individuals from both treatments were then assigned to a diet of the same quantity of food that was either simple (only crickets) or complex (crickets, cockroaches, waxworms, and mealworms) for 35 days (phase 2)...
November 2016: Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology
https://www.readbyqxmd.com/read/28097305/enhanced-recovery-after-surgery-a-review
#2
Olle Ljungqvist, Michael Scott, Kenneth C Fearon
Importance: Enhanced Recovery After Surgery (ERAS) is a paradigm shift in perioperative care, resulting in substantial improvements in clinical outcomes and cost savings. Observations: Enhanced Recovery After Surgery is a multimodal, multidisciplinary approach to the care of the surgical patient. Enhanced Recovery After Surgery process implementation involves a team consisting of surgeons, anesthetists, an ERAS coordinator (often a nurse or a physician assistant), and staff from units that care for the surgical patient...
January 11, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28029066/cardiac-autonomic-and-haemodynamic-recovery-after-a-single-session-of-aerobic-exercise-with-and-without-blood-flow-restriction-in-older-adults
#3
Marina Lívia Venturini Ferreira, Amanda Veiga Sardeli, Giovana Vergínia De Souza, Valéria Bonganha, Lucas Do Carmo Santos, Alex Castro, Cláudia Regina Cavaglieri, Mara Patrícia Traina Chacon-Mikahil
This study investigated the autonomic and haemodynamic responses to different aerobic exercise loads, with and without blood flow restriction (BFR). In a crossover study, 21 older adults (8 males and 13 females) completed different aerobic exercise sessions: low load without BFR (LL) (40% VO2max), low load with BFR (LL-BFR) (40% VO2max + 50% BFR) and high load without BFR (HL) (70% VO2max). Heart rate variability and haemodynamic responses were recorded during rest and throughout 30 min of recovery. HL reduced R-R interval, the root mean square of successive difference of R-R intervals and high frequency during 30 min of recovery at a greater magnitude compared with LL and LL-BFR...
December 28, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28011455/individual-and-interactive-effects-of-drought-and-heat-on-leaf-physiology-of-seedlings-in-an-economically-important-crop
#4
Honglang Duan, Jianping Wu, Guomin Huang, Shuangxi Zhou, Wenfei Liu, Yingchun Liao, Xue Yang, Zufei Xiao, Houbao Fan
Heat waves in combination with drought are predicted to occur more frequently with climate warming, yet their interactive effects on crop carbon and water balance are still poorly understood. Hence, research on the capacity of crops to withstand and recover from the combined stress is urgently needed. This study investigated the effects of drought and heat wave on a crop species as well as the recovery from the combined stress. Seedlings were grown in growth chambers under two soil water conditions (i.e. well watered and drought stress) at ambient temperature (26°C) for 10 days...
December 22, 2016: AoB Plants
https://www.readbyqxmd.com/read/28005459/proceedings-of-the-2016-clinical-nutrition-week-research-workshop-the-optimal-dose-of-protein-provided-to-critically-ill-patients
#5
Daren K Heyland, Olav Rooyakers, Marina Mourtzakis, Renee D Stapleton
Recent literature has created considerable confusion about the optimal amount of protein/amino acids that should be provided to the critically ill patient. In fact, the evidentiary basis that directly tries to answer this question is relatively small. As a clinical nutrition research community, there is an urgent need to develop the optimal methods to assess the impact of exogenous protein/amino acid administration in the intensive care unit setting. That assessment can be conducted at various levels: (1) impact on stress response pathways, (2) impact on muscle synthesis and protein balance, (3) impact on muscle mass and function, and (4) impact on the patient's recovery...
December 1, 2016: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27987126/enhancing-tolerance-of-rice-oryza-sativa-to-simulated-acid-rain-by-exogenous-abscisic-acid
#6
Xi Wu, Chanjuan Liang
Abscisic acid (ABA) regulates much important plant physiological and biochemical processes and induces tolerance to different stresses. Here, we studied the regulation of exogenous ABA on adaptation of rice seedlings to simulated acid rain (SAR) stress by measuring biomass dry weight, stomatal conductance, net photosynthesis rate, nutrient elements, and endogenous hormones. The application of 10 μM ABA alleviated the SAR-induced inhibition on growth, stomatal conductance, net photosynthesis rate, and decreases in contents of nutrient (K, Mg, N, and P) and hormone (auxin, gibberellins, and zeatin)...
December 16, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27984075/moderate-aerobic-exercise-on-the-recovery-phase-of-gentamicin-induced-acute-kidney-injury-in-rats
#7
C S Oliveira, A M Rodrigues, G B Nogueira, M A Nascimento, G R Punaro, E M S Higa
INTRODUCTION: Acute kidney injury is a serious public health problem, especially in intensive care units, where patients may require dialysis support, resulting in 50% mortality. AIM: To evaluate the effects of moderate aerobic exercise on the recovery phase of acute kidney injury induced by gentamicin in rats. MAIN METHODS: Male adult Wistar rats were allocated into 4 groups: W10+R30, G10+R30, W10+EX30 and G10+EX30; W10 received water (gentamicin vehicle) and G10 received gentamicin for 10days; R30 remained resting and EX30 made exercise for 30days after gentamicin suspension...
October 29, 2016: Life Sciences
https://www.readbyqxmd.com/read/27918666/quantification-of-training-and-competition-loads-in-endurance-sports-methods-and-applications
#8
Iñigo Mujika
Training quantification is basic to evaluate an endurance athlete's responses to the training loads, ensure adequate stress/recovery balance and determine the relationship between training and performance. Quantifying both external and internal workload is important, because the external workload does not measure the biological stress imposed by the exercise sessions. Generally used quantification methods include retrospective questionnaires, diaries, direct observation and physiological monitoring, often based on the measurement of oxygen uptake, heart rate and blood lactate concentration...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27866057/effect-of-crosslinking-in-cartilage-like-collagen-microstructures
#9
Ying-Chun Chen, Minsi Chen, Eamonn A Gaffney, Cameron P Brown
The mechanical performance of biological tissues is underpinned by a complex and finely balanced structure. Central to this is collagen, the most abundant protein in our bodies, which plays a dominant role in the functioning of tissues, and also in disease. Based on the collagen meshwork of articular cartilage, we have developed a bottom-up spring-node model of collagen and examined the effect of fibril connectivity, implemented by crosslinking, on mechanical behaviour. Although changing individual crosslink stiffness within an order of magnitude had no significant effect on modelling predictions, the density of crosslinks in a meshwork had a substantial impact on its behaviour...
February 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27782921/tolerance-limits-self-understanding-and-stress-resilience-in-integrative-recovery-of-inflammatory-bowel-disease
#10
Kari Skrautvol, Dagfinn Nåden
People living with chronic inflammatory bowel disease (IBD) experienced that knowledge about their embodied tolerance limits, diet, mental problem solving, and change in lifestyle together with integrative health care could promote recovery from their diagnosed disease in calmer periods of suffering. A hermeneutic approach was used to analyze interviews with patients living with IBD outside hospitals. Thirteen young adults between 18 and 45 years of age in calmer phases of IBD participated in the study. Three main themes emerged from the analysis of the interviews: (1) Understanding limits in embodied tolerance, (2) Restoring balance is creating a new equilibrium, and (3) Creating resilience through integrative care...
January 2017: Holistic Nursing Practice
https://www.readbyqxmd.com/read/27769879/individuals-with-tension-and-migraine-headaches-exhibit-increased-heart-rate-variability-during-post-stress-mindfulness-meditation-practice-but-a-decrease-during-a-post-stress-control-condition-a-randomized-controlled-experiment
#11
Muhammad Abid Azam, Joel Katz, Vina Mohabir, Paul Ritvo
BACKGROUND: Current research suggests that associations between headache conditions (migraine, tension) and imbalances in the autonomic nervous system (ANS) are due to stress-related dysregulation in the activity of the parasympathetic-sympathetic branches. Mindfulness meditation has demonstrated effectiveness in reducing pain-related distress, and in enhancing heart rate variability-a vagal-mediated marker of ANS balance. This study examined HRV during cognitive stress and mindfulness meditation in individuals with migraine and tension headaches...
October 18, 2016: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/27741123/robot-assisted-gait-training-improves-brachial-ankle-pulse-wave-velocity-and-peak-aerobic-capacity-in-subacute-stroke-patients-with-totally-dependent-ambulation-randomized-controlled-trial
#12
Eun Young Han, Sang Hee Im, Bo Ryun Kim, Min Ji Seo, Myeong Ok Kim
OBJECTIVE: Brachial-ankle pulse wave velocity (baPWV) evaluates arterial stiffness and also predicts early outcome in stroke patients. The objectives of this study were to investigate arterial stiffness of subacute nonfunctional ambulatory stroke patients and to compare the effects of robot-assisted gait therapy (RAGT) combined with rehabilitation therapy (RT) on arterial stiffness and functional recovery with those of RT alone. METHOD: The RAGT group (N = 30) received 30 minutes of robot-assisted gait therapy and 30 minutes of conventional RT, and the control group (N = 26) received 60 minutes of RT, 5 times a week for 4 weeks...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27693243/benzyl-isothiocyanate-promotes-apoptosis-of-oral-cancer-cells-via-an-acute-redox-stress-mediated-dna-damage-response
#13
Yao-Tsung Yeh, Yen-Nien Hsu, Sheng-Yun Huang, Jian-Sheng Lin, Zi-Feng Chen, Nan-Haw Chow, Shu-Hui Su, Huey-Wen Shyu, Ching-Chiang Lin, Wu-Tein Huang, Hua Yeh, Yu-Chia Chih, Yu-Hsuan Huang, Shu-Jem Su
Benzyl isothiocyanate (BITC) is a cruciferous vegetable-derived compound with anticancer properties in human cancer cells. However, its anticancer potential and underlying mechanisms remain absent in human oral cancer cells. Results indicate that BITC inhibits growth, promotes G2/M phase arrest and triggers apoptosis of OC2 cells with a minimal toxicity to normal cells. BITC-induced cell death was completely prevented by pretreatment with thiol-containing redox compounds including N-acetyl-l-cysteine (NAC), glutathione (GSH), dithiothreitol, and 2-mercaptoethanol, but not free radical scavengers mito-TEMPO, catalase, apocynin, l-NAME and mannitol...
November 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27689587/insufficient-time-for-leisure-and-perceived-health-and-stress-in-working-parents-with%C3%A2-small-children
#14
Carita Håkansson, Anna Axmon, Frida Eek
BACKGROUND: More knowledge about how recovery may promote health among parents with small children is needed. OBJECTIVE: To explore whether insufficient time for leisure was associated with poorer perceived health and higher stress in working parents. A further aim was to explore potential gender differences in the association between insufficient time for leisure and poor perceived health. METHODS: A postal survey including the perceived stress scale and three measures of subjective health - self-rated health (SF-36), work-related fatigue (Swedish occupational fatigue questionnaire), and Lund subjective health complaints - as well as questions about time for leisure was completed by 965 women and 597 men...
October 17, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/27642001/chronic-dietary-salt-stress-mitigates-hyperkalemia-and-facilitates-chill-coma-recovery-in-drosophila-melanogaster
#15
Gil Y Yerushalmi, Lidiya Misyura, Andrew Donini, Heath A MacMillan
Chill susceptible insects like Drosophila lose the ability to regulate water and ion homeostasis at low temperatures. This loss of hemolymph ion and water balance drives a hyperkalemic state that depolarizes cells, causing cellular injury and death. The ability to maintain ion homeostasis at low temperatures and/or recover ion homeostasis upon rewarming is closely related to insect cold tolerance. We thus hypothesized that changes to organismal ion balance, which can be achieved in Drosophila through dietary salt loading, could alter whole animal cold tolerance phenotypes...
December 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27596335/age-increases-reactive-oxygen-species-production-in-macrophages-and-potentiates-oxidative-damage-after-spinal-cord-injury
#16
Bei Zhang, William M Bailey, Anna Leigh McVicar, John C Gensel
Age potentiates neurodegeneration and impairs recovery from spinal cord injury (SCI). Previously, we observed that age alters the balance of destructive (M1) and protective (M2) macrophages; however, the age-related pathophysiology in SCI is poorly understood. Nicotinamide adenine dinucleotide phosphate oxidase (NOX) contributes to reactive oxygen species (ROS)-mediated damage and macrophage activation in neurotrauma. Further, NOX and ROS increase with central nervous system age. Here, we found significantly higher ROS generation in 14 versus 4-month-old (MO) mice after contusion SCI...
November 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/27484470/physical-activity-body-mass-index-and-heart-rate-variability-based-stress-and-recovery-in-16-275-finnish-employees-a-cross-sectional-study
#17
Tiina Föhr, Julia Pietilä, Elina Helander, Tero Myllymäki, Harri Lindholm, Heikki Rusko, Urho M Kujala
BACKGROUND: Physical inactivity, overweight, and work-related stress are major concerns today. Psychological stress causes physiological responses such as reduced heart rate variability (HRV), owing to attenuated parasympathetic and/or increased sympathetic activity in cardiac autonomic control. This study's purpose was to investigate the relationships between physical activity (PA), body mass index (BMI), and HRV-based stress and recovery on workdays, among Finnish employees. METHODS: The participants in this cross-sectional study were 16 275 individuals (6863 men and 9412 women; age 18-65 years; BMI 18...
2016: BMC Public Health
https://www.readbyqxmd.com/read/27412428/work-stress-poor-recovery-and-burnout-in-teachers
#18
K Gluschkoff, M Elovainio, U Kinnunen, S Mullola, M Hintsanen, L Keltikangas-Järvinen, T Hintsa
BACKGROUND: Both work stress and poor recovery have been shown to contribute to the development of burnout. However, the role of recovery as a mediating mechanism that links work stress to burnout has not been sufficiently addressed in research. AIMS: To examine recovery as a mediator in the relationship between work stress and burnout among teachers. METHODS: A cross-sectional study of Finnish primary school teachers, in whom burnout was measured with the Maslach Burnout Inventory-General Survey and work stress was conceptualized using the effort-reward imbalance (ERI) model...
October 2016: Occupational Medicine
https://www.readbyqxmd.com/read/27373799/acute-kidney-injury-following-cardiac-surgery-current-understanding-and-future-directions
#19
REVIEW
Jason B O'Neal, Andrew D Shaw, Frederic T Billings
Acute kidney injury (AKI) complicates recovery from cardiac surgery in up to 30 % of patients, injures and impairs the function of the brain, lungs, and gut, and places patients at a 5-fold increased risk of death during hospitalization. Renal ischemia, reperfusion, inflammation, hemolysis, oxidative stress, cholesterol emboli, and toxins contribute to the development and progression of AKI. Preventive strategies are limited, but current evidence supports maintenance of renal perfusion and intravascular volume while avoiding venous congestion, administration of balanced salt as opposed to high-chloride intravenous fluids, and the avoidance or limitation of cardiopulmonary bypass exposure...
July 4, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27353847/resection-of-hepatocellular-carcinoma-in-elderly-patients-and-the-role-of-energy-balance
#20
Marco Cannistrà, Raffaele Grande, Michele Ruggiero, Matteo Novello, Alessandra Zullo, Elisabetta Bonaiuto, Sebastiano Vaccarisi, Giuseppe Cavallari, Raffaele Serra, Bruno Nardo
INTRODUCTION: Progressive functional impairment with age has a significant impact on perioperative risk management. Chronic liver diseases induce a strong oxidative stress; in the elderly, in particular, impaired elimination of free radicals leads to insufficient DNA repair. The events associated with a weak response to growth factors after hepatectomy leads to a decline in liver regeneration. Hypercholesterolemia is highly prevalent in the elderly, which may alter the coenzyme Q10 (CoQ) levels and in turn the cellular energy balance...
September 2016: International Journal of Surgery
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