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Aerobic resistence

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https://www.readbyqxmd.com/read/28431849/prospective-cluster-controlled-crossover-trial-to-compare-the-impact-of-an-improved-hydrogen-peroxide-disinfectant-and-a-quaternary-ammonium-based-disinfectant-on-surface-contamination-and-health-care-outcomes
#1
John M Boyce, Kerri A Guercia, Linda Sullivan, Nancy L Havill, Renee Fekieta, Janet Kozakiewicz, David Goffman
BACKGROUND: Quaternary ammonium-based (Quat) disinfectants are widely used, but they have disadvantages. METHODS: This was a 12-month prospective cluster controlled crossover trial. On 4 wards, housekeepers performed daily cleaning using a disinfectant containing either 0.5% improved hydrogen peroxide (IHP) or Quat. Each month, 5-8 high-touch surfaces in several patient rooms on each ward were tagged with a fluorescent marker and cultured before and after cleaning...
April 18, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28431408/the-effects-of-exercise-modality-during-additional-high-intensity-interval-training-upon-aerobic-fitness-and-strength-in-powerlifting-and-strongman-athletes
#2
Patroklos Androulakis-Korakakis, Louis Langdown, Adam Lewis, James Fisher, Paulo Gentil, Antonio Paoli, James Steele
Powerlifters and strongman athletes have a necessity for optimal levels of muscular strength whilst maintaining sufficient aerobic capacity to perform and recover between events. HIIT has been popularized for its efficacy in improving both aerobic fitness and strength but never assessed within the aforementioned population group. The present study looked to compare the effect of exercise modality, e.g. a traditional aerobic mode (AM), and strength mode, (SM), during HIIT upon aerobic fitness and strength. Sixteen well resistance trained male participants, currently competing in powerlifting and strongman events, completed 8 weeks of approximately effort- and volume-matched HIIT in 2 groups: AM (cycling, n=8) and SM (resistance training, n=8)...
April 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28431199/staphylococcus-aureus-nitric-oxide-synthase-sanos-modulates-aerobic-respiratory-metabolism-and-cell-physiology
#3
Austin B Mogen, Ronan K Carroll, Kimberly L James, Genevy Lima, Dona Silva, Jeffrey A Culver, Christopher Petucci, Lindsey N Shaw, Kelly C Rice
Nitric oxide (NO) is generated from arginine and oxygen via NO synthase (NOS). Staphylococcus aureus NOS (saNOS) has previously been shown to affect virulence and resistance to exogenous oxidative stress, yet the exact mechanism is unknown. Herein, we report a previously-undescribed role of saNOS in S. aureus aerobic physiology. Specifically, aerobic S. aureus nos mutant cultures presented with elevated endogenous reactive oxygen species (ROS) and superoxide levels, as well as increased membrane potential, increased respiratory dehydrogenase activity, and slightly elevated oxygen consumption...
April 21, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28429319/biochemistry-and-physiology-of-heavy-metal-resistance-and-accumulation-in-euglena
#4
Rafael Moreno-Sánchez, Sara Rodríguez-Enríquez, Ricardo Jasso-Chávez, Emma Saavedra, Jorge D García-García
Free-living microorganisms may become suitable models for removal of heavy metals from polluted water bodies, sediments, and soils by using and enhancing their metal accumulating abilities. The available research data indicate that protists of the genus Euglena are a highly promising group of microorganisms to be used in bio-remediation of heavy metal-polluted aerobic and anaerobic acidic aquatic environments. This chapter analyzes the variety of biochemical mechanisms evolved in E. gracilis to resist, accumulate and remove heavy metals from the environment, being the most relevant those involving (1) adsorption to the external cell pellicle; (2) intracellular binding by glutathione and glutathione polymers, and their further compartmentalization as heavy metal-complexes into chloroplasts and mitochondria; (3) polyphosphate biosynthesis; and (4) secretion of organic acids...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28429317/biochemistry-and-physiology-of-reactive-oxygen-species-in-euglena
#5
Takahiro Ishikawa, Shun Tamaki, Takanori Maruta, Shigeru Shigeoka
Reactive oxygen species (ROS) such as superoxide and hydrogen peroxide are by-products of various metabolic processes in aerobic organisms including Euglena. Chloroplasts and mitochondria are the main sites of ROS generation by photosynthesis and respiration, respectively, through the active electron transport chain. An efficient antioxidant network is required to maintain intracellular ROS pools at optimal conditions for redox homeostasis. A comparison with the networks of plants and animals revealed that Euglena has acquired some aspects of ROS metabolic process...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28427249/crystal-structure-of-the-regulatory-domain-of-aphb-from-vibrio-vulnificus-a-virulence-gene-regulator
#6
Nohra Park, Saemee Song, Garam Choi, Kyung Ku Jang, Inseong Jo, Sang Ho Choi, Nam-Chul Ha
The transcriptional activator AphB has been implicated in acid resistance and pathogenesis in the food borne pathogens Vibrio vulnificus and Vibrio cholerae. To date, the full-length AphB crystal structure of V. cholerae has been determined and characterized by a tetrameric assembly of AphB consisting of a DNA binding domain and a regulatory domain (RD). Although acidic pH and low oxygen tension might be involved in the activation of AphB, it remains unknown which ligand or stimulus activates AphB at the molecular level...
April 20, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28426732/regulation-of-sesame-mediated-h3t11-phosphorylation-by-glycolytic-enzymes-and-metabolites
#7
Qi Yu, Chong Tong, Mingdan Luo, Xiangyan Xue, Qianyun Mei, Lixin Ma, Xiaolan Yu, Wuxiang Mao, Lingbao Kong, Xilan Yu, Shanshan Li
Cancer cells prefer aerobic glycolysis, but little is known about the underlying mechanism. Recent studies showed that the rate-limiting glycolytic enzymes, pyruvate kinase M2 (PKM2) directly phosphorylates H3 at threonine 11 (H3T11) to regulate gene expression and cell proliferation, revealing its non-metabolic functions in connecting glycolysis and histone modifications. We have reported that the yeast homolog of PKM2, Pyk1 phosphorylates H3T11 to regulate gene expression and oxidative stress resistance. But how glycolysis regulates H3T11 phosphorylation remains unclear...
2017: PloS One
https://www.readbyqxmd.com/read/28425939/fructose-consumption-in-the-development-of-obesity-and-the-effects-of-different-protocols-of-physical-exercise-on-the-hepatic-metabolism
#8
REVIEW
Rodrigo Martins Pereira, José Diego Botezelli, Kellen Cristina da Cruz Rodrigues, Rania A Mekary, Dennys Esper Cintra, José Rodrigo Pauli, Adelino Sanchez Ramos da Silva, Eduardo Rochete Ropelle, Leandro Pereira de Moura
Fructose consumption has been growing exponentially and, concomitant with this, the increase in the incidence of obesity and associated complications has followed the same behavior. Studies indicate that fructose may be a carbohydrate with greater obesogenic potential than other sugars. In this context, the liver seems to be a key organ for understanding the deleterious health effects promoted by fructose consumption. Fructose promotes complications in glucose metabolism, accumulation of triacylglycerol in the hepatocytes, and alterations in the lipid profile, which, associated with an inflammatory response and alterations in the redox state, will imply a systemic picture of insulin resistance...
April 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28422063/tellurite-and-tellurate-reduction-by-the-aerobic-anoxygenic-phototroph-erythromonas-ursincola-strain-kr99-is-carried-out-by-a-novel-membrane-associated-enzyme
#9
Chris Maltman, Lynda J Donald, Vladimir Yurkov
Erythromonas ursincola, strain KR99 isolated from a freshwater thermal spring of Kamchatka Island in Russia, resists and reduces very high levels of toxic tellurite under aerobic conditions. Reduction is carried out by a constitutively expressed membrane associated enzyme, which was purified and characterized. The tellurite reductase has a molecular weight of 117 kDa, and is comprised of two subunits (62 and 55 kDa) in a 1:1 ratio. Optimal activity occurs at pH 7.0 and 28 °C. Tellurite reduction has a Vmax of 5...
April 19, 2017: Microorganisms
https://www.readbyqxmd.com/read/28421043/outlining-core-pathways-of-amyloid-toxicity-in-bacteria-with-the-repa-wh1-prionoid
#10
Laura Molina-García, María Moreno-Del Álamo, Pedro Botias, Zaira Martín-Moldes, María Fernández, Alicia Sánchez-Gorostiaga, Aída Alonso-Del Valle, Juan Nogales, Jesús García-Cantalejo, Rafael Giraldo
The synthetic bacterial prionoid RepA-WH1 causes a vertically transmissible amyloid proteinopathy in Escherichia coli that inhibits growth and eventually kills the cells. Recent in vitro studies show that RepA-WH1 builds pores through model lipid membranes, suggesting a possible mechanism for bacterial cell death. By comparing acutely (A31V) and mildly (ΔN37) cytotoxic mutant variants of the protein, we report here that RepA-WH1(A31V) expression decreases the intracellular osmotic pressure and compromise bacterial viability under either aerobic or anaerobic conditions...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420905/effects-of-supervised-aerobic-training-on-the-levels-of-anti-mullerian-hormone-and-adiposity-measures-in-women-with-normo-ovulatory-and-polycystic-ovary-syndrome
#11
Einas Al-Eisa, Sami Ali Gabr, Ahmad Hieder Alghadir
OBJECTIVE: To evaluate the change in the levels of anti-Mullerian hormone, adiponectin, weight loss and fertility parameters in obese women with or without polycystic ovary syndrome, following 12 weeks of supervised aerobic exercise. METHODS: This study was conducted from August 2013 to October 2014 among obese women with or without polycystic ovary syndrome referred to Obstetrics and Gynecology clinic, Mansoura University Hospital, Faculty of Medicine, Mansoura, Egypt...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28419004/small-sample-sizes-confound-understanding-of-cardiometabolic-responses-to-exercise
#12
Linda S Pescatello, Lauren M L Corso, Hayley V MacDonald, Paul D Thompson, Beth A Taylor, Gregory A Panza, Amanda L Zaleski, Blair T Johnson, Ming Hui Chen
Considerable variability exists in the cardiometabolic disease biomarker response to exercise. We propose a major contributor to this heterogeneity is underpowered studies due to small sample sizes. To test our hypothesis, we conducted a systematic review to identify meta-analyses/reviews of randomized control trials (RCTs) and RCTs that examined the cardiometabolic disease biomarker response to aerobic and resistance exercise.
April 17, 2017: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/28414072/resistance-training-is-associated-with-spontaneous-changes-in-aerobic-physical-activity-but-not-overall-diet-quality-in-adults-with-prediabetes
#13
Tanya M Halliday, Jyoti Savla, Elaina L Marinik, Valisa E Hedrick, Richard A Winett, Brenda M Davy
BACKGROUND: Aerobic exercise interventions have been shown to result in alterations to dietary intake and non-exercise physical activity (PA). To date, the ability for resistance training (RT) to influence other health-related behaviors has not been examined. This study aimed to determine if initiation and maintenance of RT is associated with spontaneous changes in dietary quality and non-RT PA in adults with prediabetes. METHODS: Overweight/obese adults (n=170, BMI=32...
April 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28412423/rv-contractile-function-and-its-coupling-to-pulmonary-circulation-in-heart-failure-with-preserved%C3%A2-ejection%C3%A2-fraction-stratification-of-clinical-phenotypes-and-outcomes
#14
Marco Guazzi, Debra Dixon, Valentina Labate, Lauren Beussink-Nelson, Francesco Bandera, Michael J Cuttica, Sanijv J Shah
OBJECTIVES: This study sought to investigate how right ventricular (RV) contractile function and its coupling with pulmonary circulation (PC) stratify clinical phenotypes and outcome in heart failure preserved ejection fraction (HFpEF) patients. BACKGROUND: Pulmonary hypertension and RV dysfunction are key hemodynamic abnormalities in HFpEF. METHODS: Three hundred eighty seven HFpEF patients (mean age 64 ± 12 years, 59% females, left ventricular ejection fraction 59 ± 7%) underwent RV and pulmonary hemodynamic evaluation by echocardiography (entire population) and right heart catheterization (219 patients)...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28411227/fate-and-persistence-of-a-pathogenic-ndm-1-positive-escherichia-coli-strain-in-anaerobic-and-aerobic-sludge-microcosms
#15
David Mantilla-Calderon, Pei-Ying Hong
The presence of emerging biological pollutants in treated wastewater effluents has gained attention due to increased interest in water reuse. To evaluate the effectiveness of the removal of such contaminants by the conventional wastewater treatment process, the fate and decay kinetics of NDM-1-positive Escherichia coli strain PI7 and its plasmid-encoded antibiotic resistance genes (ARGs) were assessed in microcosms of anaerobic and aerobic sludge. Results showed that E. coli PI7 decayed at a significantly slower rate under anaerobic conditions...
April 14, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28410831/feasibility-and-efficacy-of-presurgical-exercise-in-survivors-of-rectal-cancer-scheduled-to-receive-curative-resection
#16
Favil Singh, Robert U Newton, Michael K Baker, Nigel A Spry, Dennis R Taaffe, Daniel A Galvão
BACKGROUND: Localized rectal carcinoma is invasive, with surgical resection the standard treatment. The aim of this study was to determine the feasibility of a supervised presurgical exercise intervention in patients with rectal cancer prior to rectal resection. PATIENTS AND METHODS: Twelve patients volunteered to undertake twice-weekly aerobic and resistance exercise for ∼16 weeks prior to surgery. At baseline, presurgery, and ∼8 weeks postsurgery, muscle strength and physical performance, body composition, quality of life, and fatigue were assessed...
March 21, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28409595/exercise-prescriptions-in-older-adults
#17
Pearl Guozhu Lee, Elizabeth A Jackson, Caroline R Richardson
Regular physical activity and exercise are important for healthy aging and are beneficial for chronic disease management. Exercise prescriptions for older adults should account for the individual's health status and functional capacity. Any amount of exercise is better than being sedentary, even if health status prevents a person from achieving recommended goals. For most health outcomes, more benefits occur with physical activity performed at higher intensity, greater frequency, or longer duration. Guidelines recommend at least 150 minutes of moderate-intensity aerobic activity or 75 minutes of vigorous-intensity aerobic activity and at least two days of muscle-strengthening activities per week...
April 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28403830/effectiveness-of-progressive-resistive-exercise-pre-in-the-context-of-hiv-systematic-review-and-meta-analysis-using-the-cochrane-collaboration-protocol
#18
Kelly K O'Brien, Anne-Marie Tynan, Stephanie A Nixon, Richard H Glazier
BACKGROUND: HIV is increasingly considered a chronic illness. More individuals are living longer and aging with the health-related consequences associated with HIV and multi-morbidity. Exercise is a self-management approach that can promote health for people aging with HIV. We examined the safety and effectiveness of progressive resistive exercise (PRE) interventions on immunological, virological, cardiorespiratory, strength, weight, body composition, and psychological outcomes in adults living with HIV...
April 12, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28400914/physical-exercise-on-inflammatory-markers-in-type-2-diabetes-patients-a-systematic-review-of-randomized-controlled-trials
#19
REVIEW
Luciana Costa Melo, Jaime Dativo-Medeiros, Carlos Eduardo Menezes-Silva, Fabiano Timbó Barbosa, Célio Fernando de Sousa-Rodrigues, Luiza A Rabelo
Background. Type 2 diabetes mellitus (T2DM) is a serious disease associated with high morbidity and mortality. Scientific findings showed that physical exercise is an option for treatment of these patients. This study's objective is to investigate the effects of supervised aerobic and/or resistance physical training on inflammatory markers in subjects with T2DM. Methods. A systematic review was conducted on four databases, MEDLINE, CENTRAL, LILACS, and Scopus, and manual search from 21 to 30 November 2016. Randomized clinical trials involving individuals diagnosed with T2DM, who have undergone supervised training protocols, were selected in this study...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28400677/the-potential-role-of-aerobic-exercise-induced-pentraxin-3-on-obesity-related-inflammation-and-metabolic-dysregulation
#20
REVIEW
Aaron L Slusher, Chun-Jung Huang, Edmund O Acevedo
Obesity is defined as the excess accumulation of intra-abdominal body fat, resulting in a state of chronic, low-grade proinflammation that can directly contribute to the development of insulin resistance. Pentraxin 3 (PTX3) is an acute-phase protein that is expressed by a variety of tissue and cell sources and provides an anti-inflammatory property to downregulate the production of proinflammatory cytokines, in particular interleukin-1 beta and tumor necrosis factor alpha. Although PTX3 may therapeutically aid in altering the proinflammatory milieu in obese individuals, and despite elevated expression of PTX3 mRNA observed in adipose tissue, the circulating level of PTX3 is reduced with obesity...
2017: Mediators of Inflammation
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