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https://www.readbyqxmd.com/read/29345541/running-mechanics-and-metabolic-responses-with-water-bottles-and-bottle-belt-holders
#1
Heather K Vincent, Laura A Zdziarski, Kyle Fallgatter, Giorgio Negron, Cong Chen, Trevor Leavitt, MaryBeth Horodyski, Joseph G Wasser, Kevin R Vincent
PURPOSE: This study determined whether differential kinematics, kinetics, rates of energy use and cardiopulmonary responses occurred during running with water bottles and bottle belt holders compared to running only. METHODS: Trained runners (N=42; 27.2±6.4 yr) ran on an instrumented treadmill for four conditions in a randomized order: 1) control run (CON); 2) hand-held full water bottle (FULL, 16.9 fluid oz; 454 g); 3) hand-held half-full water bottle (HALF, 8...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29345532/ischemic-pre-conditioning-does-not-influence-maximal-sprint-acceleration-performance
#2
Kyle M A Thompson, Alanna K Whinton, Shane Ferth, Lawrence L Spriet, Jamie F Burr
Ischemic pre-conditioning (IPC) was initially developed to protect the myocardium from ischemia through altered cardiocyte metabolism. Due to the observed effects on metabolism and oxygen kinetics, IPC gained interest as a potential ergogenic aid in sport. Limited research evaluating the effects of IPC on maximal short-duration activities has been performed and of the existing literature, mixed outcomes resulting from intra-subject variation may have clouded the efficacy of this technique for enhancing sprint performance...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29343586/a-case-of-cardiomyopathy-due-to-premature-ductus-arteriosus-closure-the-flip-side-of-paracetamol
#3
Ingrid Anne Mandy Schierz, Mario Giuffrè, Ettore Piro, Simona La Placa, Giovanni Corsello
Paracetamol (acetaminophen or N-acetyl-p-aminophenol) is considered a safe analgesic and antipyretic nonsteroidal antiinflammatory drug commonly used during pediatric ages and during pregnancy. We report on a term neonate with closed ductus arteriosus, severe cardiomyopathy, right ventricular dysfunction, and functional stenosis of pulmonary arteries at birth after maternal self-medication with paracetamol and consumption of polyphenol-rich foods in late pregnancy. This drug, especially when associated with other vasoconstrictors (such as polyphenols), interferes with prostaglandin metabolism, which seriously accentuates the intrauterine ductus arteriosus constriction and leads to pharmacologic adverse events...
January 17, 2018: Pediatrics
https://www.readbyqxmd.com/read/29342097/time-domain-near-infrared-spectroscopy-device-for-monitoring-muscle-oxidative-metabolism-custom-probe-and-in-vivo-applications
#4
Rebecca Re, Ileana Pirovano, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli
Measurement of muscle oxidative metabolism is of interest for monitoring the training status in athletes and the rehabilitation process in patients. Time domain near infrared spectroscopy (TD NIRS) is an optical technique that allows the non-invasive measurement of the hemodynamic parameters in muscular tissue: concentrations of oxy- and deoxy-hemoglobin, total hemoglobin content, and tissue oxygen saturation. In this paper, we present a novel TD NIRS medical device for muscle oxidative metabolism. A custom-printed 3D probe, able to host optical elements for signal acquisition from muscle, was develop for TD NIRS in vivo measurements...
January 17, 2018: Sensors
https://www.readbyqxmd.com/read/29338584/effect-of-acute-ingestion-of-%C3%AE-hydroxybutyrate-salts-on-the-response-to-graded-exercise-in-trained-cyclists
#5
Mark Evans, Ella Patchett, Rickard Nally, Rachel Kearns, Matthew Larney, Brendan Egan
Acute ingestion of ketone salts induces nutritional ketosis by elevating β-hydroxybutyrate (βHB), but few studies have examined the metabolic effects of ingestion prior to exercise. Nineteen trained cyclists (12 male, 7 female) undertook graded exercise (8 min each at ∼30%, 40%, 50%, 60%, 70%, and 80% VO2peak) on a cycle ergometer on two occasions separated by either 7 or 14 days. Trials included ingestion of boluses of either (i) plain water (3.8 mL kg body mass-1) (CON) or (ii) βHB salts (0.38 g kg body mass-1) in plain water (3...
January 16, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29336922/segmentation-free-direct-tumor-volume-and-metabolic-activity-estimation-from-pet-scans
#6
Saeid Asgari Taghanaki, Noirin Duggan, Hillgan Ma, Xinchi Hou, Anna Celler, Francois Benard, Ghassan Hamarneh
Tumor volume and metabolic activity are two robust imaging biomarkers for predicting early therapy response in F-fluorodeoxyglucose (FDG) positron emission tomography (PET), which is a modality to image the distribution of radiotracers and thereby observe functional processes in the body. To date, estimation of these two biomarkers requires a lesion segmentation step. While the segmentation methods requiring extensive user interaction have obvious limitations in terms of time and reproducibility, automatically estimating activity from segmentation, which involves integrating intensity values over the volume is also suboptimal, since PET is an inherently noisy modality...
December 27, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/29336339/-training-program-in-oncologic-urology-future-prospectives
#7
Mario Alvarez-Maestro, Juan Gómez Rivas, Alfredo Aguilera Bazán, Luis Martínez-Piñeiro, Alvaro Juarez Soto, Jose Manuel Cozar Olmo, Manuel Esteban Fuertes
Urology is a medical-surgical specialty that deals with the study, diagnosis and treatment of the medical and surgical diseases of the urinary apparatus and retroperitoneum in both sexes and the male genital apparatus without age limit, due to congenital, traumatic, septic, metabolic, obstructive and oncological conditions. Urologic oncology is the broadest urological part, where research and new advances make continuous learning essential. In this chapter we treat all academic features related with training in the field of Urooncology...
January 2018: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/29335023/early-neonatal-glutaric-aciduria-type-i-hidden-by-perinatal-asphyxia-a-case-report
#8
Giacomo Biasucci, Nicola Morelli, Federica Natacci, Massimo Mastrangelo
BACKGROUND: Perinatal asphyxia (PA) occurs in about 2 to 10 per 1000 live full-term births. Although neonatal epileptic seizures are observed in up to 60% of cases, PA may mimic or subtend other conditions. Hypoxia related brain injury is particularly relevant, as it may have permanent effects on neuropsychomotor development. Antepartum obstetric conditions, may, in turn, lead to hypoxic-ischemic damage to the fetus and the newborn, often underlying PA. Herein, a case of PA that hid and triggered signs and symptoms of Glutaric Aciduria type I (GA-I), is reported...
January 15, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29334615/hemodynamic-and-metabolic-responses-to-self-paced-and-ramp-graded-exercise-testing-protocols
#9
Nicholas M Beltz, Fabiano Amorim, Ann L Gibson, Jeffrey M Janot, Len Kravitz, Christine M Mermier, Nathan Cole, Terence A Moriarty, Tony P Nunez, Sam Trigg, Lance Dalleck
PURPOSE: Recent examinations have shown lower maximal oxygen uptake (VO2max) during traditional ramp (RAMP) compared to self-paced (SPV) graded exercise testing (GXT) attributed to differences in cardiac ouput. The current study examined the differences in hemodyamic and metabolic responses between RAMP and SPV during treadmill exercise. METHODS: Sixteen recreationally trained men (23.7±3.0 yrs) completed two separate treadmill GXT protocols. SPV consisted of five 2-min stages (10 min total) of increasing speed clamped by the Borg RPE6-20 scale...
January 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29334345/arm-crank-ergometry-improves-cardiovascular-disease-risk-factors-and-community-mobility-independent-of-body-composition-in-high-motor-complete-spinal-cord-injury
#10
James J Bresnahan, Gary J Farkas, Jody L Clasey, James W Yates, David R Gater
OBJECTIVE: Evaluate the effect of aerobic exercise using arm crank ergometry (ACE) in high motor complete (ISNCSCI A/B) spinal cord injury (SCI) as primarily related to cardiovascular disease (CVD) risk factors and functional mobility and secondarily to body composition and metabolic profiles. DESIGN: Longitudinal interventional study at an academic medical center. METHODS: Ten previously untrained participants (M8/F2, Age 36.7 y ± 10.1, BMI 24...
January 15, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29334005/physiological-correlations-with-short-medium-and-long-cycling-time-trial-performance
#11
Fernando K Borszcz, Artur F Tramontin, Kristopher M de Souza, Lorival J Carminatti, Vitor P Costa
PURPOSE: Several studies have demonstrated that physiological variables predict cycling endurance performance. However, it is still unclear whether the predictors will change over different performance durations. The aim of this study was to assess the correlations between physiological variables and cycling time trials with different durations. METHODS: Twenty trained male cyclists (maximal oxygen uptake [VO2max] = 60.5 ± 5.6 mL/kg/min) performed 4 separate experimental trials during a 2-week period...
January 15, 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29333789/physical-training-in-a-medical-fitness-room-for-patients-with-chronic-diseases-functional-and-metabolic-outcomes
#12
Oshrat E Tayer-Shifman, Yigal Bar-On, David Pereg, Alon Y Hershko
BACKGROUND: Physical inactivity is a pivotal factor in the development and progression of various chronic diseases. However, most fitness facilities exclude unhealthy individuals. Therefore, an exercise program that admits such patients is imperative. OBJECTIVES: To evaluate the effectiveness of a fitness facility that admits adult subjects with multiple chronic diseases. METHODS: We conducted a retrospective screening of patient records from the Medical Fitness Facility at Meir Medical Center, Israel...
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29332401/proteomic-profiling-of-leishmania-donovani-promastigote-subcellular-organelles
#13
Armando Jardim, Darryl B Hardie, Jan Boitz, Christoph H Borchers
To facilitate a greater understanding of the biological processes in the medically important Leishmania donovani parasite, a combination of differential and density-gradient ultracentrifugation techniques were used to achieve a comprehensive subcellular fractionation of the promastigote stage. An in-depth label-free proteomic LC-MS/MS analysis of the density gradients resulted in the identification of ~50% of the Leishmania proteome (3883 proteins detected), which included ~645 integral membrane proteins and 1737 uncharacterized proteins...
January 15, 2018: Journal of Proteome Research
https://www.readbyqxmd.com/read/29331050/exercise-counteracts-lipotoxicity-by-improving-lipid-turnover-and-lipid-droplet-quality
#14
Evelyn Zacharewicz, Matthijs K C Hesselink, Patrick Schrauwen
The incidence of obesity and metabolic disease, such as type 2 diabetes mellitus (T2D), are rising globally. Dietary lipid over-supply leads to lipid accumulation at ectopic sites, such as skeletal muscle. Ectopic lipid storage is highly correlated with insulin resistance and T2D, likely due to a loss of metabolic flexibility - the capacity to switch between fat and glucose oxidation upon insulin stimulation - and cellular dysfunction because of lipotoxicity. However, muscle lipid levels are also elevated in endurance trained athletes, presenting a paradoxical phenotype of increased intramuscular lipids along with high insulin sensitivity - the "athletes' paradox"...
January 13, 2018: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29330835/international-guidelines-for-groin-hernia-management
#15
(no author information available yet)
INTRODUCTION: Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery...
January 12, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29330325/cutting-edge-plasmodium-falciparum-induces-trained-innate-immunity
#16
Jacob E Schrum, Juliet N Crabtree, Katherine R Dobbs, Michael C Kiritsy, George W Reed, Ricardo T Gazzinelli, Mihai G Netea, James W Kazura, Arlene E Dent, Katherine A Fitzgerald, Douglas T Golenbock
Malarial infection in naive individuals induces a robust innate immune response. In the recently described model of innate immune memory, an initial stimulus primes the innate immune system to either hyperrespond (termed training) or hyporespond (tolerance) to subsequent immune challenge. Previous work in both mice and humans demonstrated that infection with malaria can both serve as a priming stimulus and promote tolerance to subsequent infection. In this study, we demonstrate that initial stimulation with Plasmodium falciparum-infected RBCs or the malaria crystal hemozoin induced human adherent PBMCs to hyperrespond to subsequent ligation of TLR2...
January 12, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29329778/high-intensity-interval-training-versus-continuous-training-on-physiological-and-metabolic-variables-in-prediabetes-and-type-2-diabetes-a-meta-analysis
#17
REVIEW
Angélica Trevisan De Nardi, Tainara Tolves, Thatiane Larissa Lenzi, Luis Ulisses Signori, Antônio Marcos Vargas da Silva
AIMS: To compare the effects of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on functional capacity and cardiometabolic markers in individuals prediabetes and type 2 diabetes (T2D). METHODS: The search was performed in PubMed (MEDLINE), EMBASE, PEDro, CENTRAL, Scopus, LILACS database, and Clinical Trials from the inception to July 2017, included randomized clinical trials that compared the use of HIIT and MICT in prediabetes and T2D adults...
January 9, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29329117/ce-original-research-physical-activity-among-chinese-american-immigrants-with-prediabetes-or-type-2-diabetes
#18
Sophia H Hu, Mei R Fu, Shan Liu, Yen-Kuang Lin, Wen-Yin Chang
Findings from this mixed-methods study reveal deficits and suggest areas for change. ABSTRACT: Background: Although the benefits of aerobic exercise and strength training for patients with type 2 diabetes have been studied extensively, research on physical activity among Chinese American immigrants diagnosed with prediabetes or type 2 diabetes has been limited. PURPOSE: We sought to learn more about this population's knowledge of physical activity, the types and intensity levels performed, and the barriers to such activity...
January 11, 2018: American Journal of Nursing
https://www.readbyqxmd.com/read/29328910/modulation-of-myelopoiesis-progenitors-is-an-integral-component-of-trained-immunity
#19
Ioannis Mitroulis, Klara Ruppova, Baomei Wang, Lan-Sun Chen, Michal Grzybek, Tatyana Grinenko, Anne Eugster, Maria Troullinaki, Alessandra Palladini, Ioannis Kourtzelis, Antonios Chatzigeorgiou, Andreas Schlitzer, Marc Beyer, Leo A B Joosten, Berend Isermann, Mathias Lesche, Andreas Petzold, Kai Simons, Ian Henry, Andreas Dahl, Joachim L Schultze, Ben Wielockx, Nicola Zamboni, Peter Mirtschink, Ünal Coskun, George Hajishengallis, Mihai G Netea, Triantafyllos Chavakis
Trained innate immunity fosters a sustained favorable response of myeloid cells to a secondary challenge, despite their short lifespan in circulation. We thus hypothesized that trained immunity acts via modulation of hematopoietic stem and progenitor cells (HSPCs). Administration of β-glucan (prototypical trained-immunity-inducing agonist) to mice induced expansion of progenitors of the myeloid lineage, which was associated with elevated signaling by innate immune mediators, such as IL-1β and granulocyte-macrophage colony-stimulating factor (GM-CSF), and with adaptations in glucose metabolism and cholesterol biosynthesis...
January 11, 2018: Cell
https://www.readbyqxmd.com/read/29328908/metabolic-induction-of-trained-immunity-through-the-mevalonate-pathway
#20
Siroon Bekkering, Rob J W Arts, Boris Novakovic, Ioannis Kourtzelis, Charlotte D C C van der Heijden, Yang Li, Calin D Popa, Rob Ter Horst, Julia van Tuijl, Romana T Netea-Maier, Frank L van de Veerdonk, Triantafyllos Chavakis, Leo A B Joosten, Jos W M van der Meer, Henk Stunnenberg, Niels P Riksen, Mihai G Netea
Innate immune cells can develop long-term memory after stimulation by microbial products during infections or vaccinations. Here, we report that metabolic signals can induce trained immunity. Pharmacological and genetic experiments reveal that activation of the cholesterol synthesis pathway, but not the synthesis of cholesterol itself, is essential for training of myeloid cells. Rather, the metabolite mevalonate is the mediator of training via activation of IGF1-R and mTOR and subsequent histone modifications in inflammatory pathways...
January 11, 2018: Cell
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