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https://www.readbyqxmd.com/read/28223068/parasite-control-and-skeletal-myositis-in-trypanosoma-cruzi-infected-and-exercised-rats
#1
Rômulo D Novaes, Reggiani V Gonçalves, Arlete R Penitente, Marli C Cupertino, Izabel R S C Maldonado, André Talvani, Antônio J Natali
Non-pharmacological strategies have been rarely described in the treatment of infectious diseases. Although exercise training has been recently incorporated in the clinical management of Chagas disease, the rationale basis that supports this indication is poorly understood. Thus, we investigated the effect of an aerobic exercise on the parasitism, inflammation and oxidative tissue damage in a murine model of Trypanosoma cruzi-induced skeletal myositis. Wistar rats were randomized into four groups: trained not infected (TNI) and infected (TI), sedentary not infected (SNI) and infected (SI)...
February 18, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28222576/may-a-unitary-autonomic-index-help-assess-autonomic-cardiac-regulation-in-elite-athletes-preliminary-observations-on-the-national-italian-olympic-committee-team
#2
Roberto Sala, Mara Malacarne, Fabio Tosi, Manuela Benzi, Nadia Solaro, Stefano Tamorri, Antonio Spataro, Massimo Pagani, Daniela Lucini
BACKGROUND: Long term endurance training, as occurring in elite athletes, is associated to cardiac neural remodeling in favor of cardioprotective vagal mechanisms, resulting in resting bradycardia and augmented contribution of cardiac parasympathetic nerve activity. Autonomic assessment can be performed by way of Heart Rate Variability. This technique however provides multiple indices, and there is not yet complete agreement on their specific significance. Purpose of the study was to assess whether a rank transformation and radar plot could provide a unitary autonomic index, capable to show a correlation between intensity of individual work and quality of autonomic regulation...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28219102/no-evidence-of-racial-differences-in-endothelial-function-and-exercise-blood-flow-in-young-healthy-males-following-acute-antioxidant-supplementation
#3
Rebecca M Kappus, Kanokwan Bunsawat, Alexander J Rosenberg, Bo Fernhall
This study investigated the effects of acute antioxidant supplementation on endothelial function, exercise blood flow and oxidative stress biomarkers in 9 young African American compared to 10 Caucasian males (25.7±1.2 years). We hypothesized that African American males would have lower exercise blood flow and endothelial responsiveness compared to Caucasian males, and these responses would be improved following antioxidant supplementation. Ultrasonography was used to measure blood flow during handgrip exercise...
February 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28209386/dietary-therapy-in-heart-failure-with-preserved-ejection-fraction-and-or-left-ventricular-diastolic-dysfunction-in-patients-with-metabolic-syndrome
#4
REVIEW
Helene von Bibra, Alexander Ströhle, Martin St John Sutton, Nicolai Worm
BACKGROUND: Heart failure is an ongoing epidemic of left ventricular (LV) dilatation and/or dysfunction due to the increasing prevalence of predisposing risk factors such as age, physical inactivity, (abdominal) obesity, and type-2-diabetes. Approximately half of these patients have diastolic heart failure (HFpEF). The prognosis of HFpEF is comparable to that of systolic heart failure, but without any known effective treatment. DIASTOLIC DYSFUNCTION: A biomathematically corrected diagnostic approach is presented that quantifies diastolic dysfunction via the predominant age dependency of LV diastolic function and unmasks (metabolic) risk factors, that are independent of age and, therefore, potential targets for therapy...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28209292/cholesterol-screening-and-treatment-practices-and-preferences-a-survey-of-united-states-pediatricians
#5
Sarah D de Ferranti, Angie Mae Rodday, Susan K Parsons, William L Cull, Karen G O'Connor, Stephen R Daniels, Laurel K Leslie
OBJECTIVES: To determine pediatricians' practices, attitudes, and barriers regarding screening for and treatment of pediatric dyslipidemias in 9- to 11-year-olds and 17- to 21-year-olds. STUDY DESIGN: American Academy of Pediatrics (AAP) 2013-2014 Periodic Survey of a national, randomly selected sample of 1627 practicing AAP physicians. Pediatricians' responses were described and modeled. RESULTS: Of 614 (38%) respondents who met eligibility criteria, less than half (46%) were moderately/very knowledgeable about the 2008 AAP cholesterol statement; fewer were well-informed about 2011 National Heart, Lung, and Blood Institute Guidelines or 2007 US Preventive Service Task Force review (both 26%)...
February 13, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28208792/an%C3%A2-exercise-only%C3%A2-intervention%C3%A2-in%C3%A2-obese%C3%A2-fathers%C3%A2-restores%C3%A2-glucose%C3%A2-and%C3%A2-insulin%C3%A2-regulation%C3%A2-in%C3%A2-conjunction%C3%A2-with%C3%A2-the%C3%A2-rescue%C3%A2-of%C3%A2-pancreatic%C3%A2-islet%C3%A2-cell%C3%A2-morphology%C3%A2-and%C3%A2-microrna%C3%A2-expression%C3%A2-in%C3%A2-male%C3%A2-offspring
#6
Nicole O McPherson, Michelle Lane, Lauren Sandeman, Julie A Owens, Tod Fullston
Paternal obesity programs metabolic syndrome in offspring. Low-impact exercise in obese  males improves the metabolic health of female offspring, however whether this occurred in male  offspring remained unknown. C57BL/6NHsd (Harlan) mice were fed a control diet (CD; 6% fat, n =  7) or a high-fat diet (HFD; 21% fat, n = 16) for 18 weeks. After 9 weeks, HFD-fed mice either remained  sedentary (HH, n = 8) or undertook low-moderate exercise (HE, n = 8) for another 9 weeks...
February 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28207959/lipoprotein-lipase-activity-does-not-predict-vldl-tg-fatty-acid-oxidation-during-exercise
#7
Esben Søndergaard, Iben R Andersen, Lars P Sørensen, Lars C Gormsen, Søren Nielsen
INTRODUCTION: Exercise lowers plasma triglyceride levels, but the physiological mechanisms remain not fully elucidated. Lipoprotein lipase (LPL) is a key enzyme in facilitating fatty acid uptake from lipoproteins. Since exercise increase the efficiency of VLDL-TG oxidation, we hypothesized that muscle LPL activity would be a rate-limiting step and predict VLDL-TG FA oxidation during exercise. METHODS: Sixteen healthy, lean subjects (8 men and 8 women) were examined before and during an acute exercise bout (90 min at 50% of VO2-max)...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28202852/association-of-serum-uric-acid-levels-with-leg-ischemia-in-patients-with-peripheral-arterial-disease-after-treatment
#8
Yoko Sotoda, Shigeki Hirooka, Hiroyuki Orita, Ichiro Wakabayashi
AIM: We investigated the relationships of serum uric acid levels with the progression of atherosclerosis in patients with peripheral arterial disease (PAD) after treatment. METHODS: Subjects were male patients diagnosed with PAD. Atherosclerosis at the common carotid artery was evaluated based on its intima-media thickness (IMT). Leg arterial flow was evaluated by measuring ankle-brachial index (ABI) and exercise-induced decrease in ABI. RESULTS: Among various risk factors including age, blood pressure, adiposity, estimated glomerular filtration rate, and blood lipid, blood glucose, uric acid, fibrinogen and C-reactive protein levels, only uric acid levels showed significant correlations with ABI [Pearson's correlation coefficient, -0...
February 15, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28202648/living-in-flowing-water-increases-resistance-to-ultraviolet-b-radiation
#9
Ensiyeh Ghanizadeh-Kazerouni, Craig E Franklin, Frank Seebacher
Ultraviolet B radiation (UV-B) is an important environmental driver that can affect locomotor performance negatively by inducing production of reactive oxygen species (ROS). Prolonged regular exercise increases antioxidant activities, which may alleviate the negative effects of UV-B-induced ROS. Animals naturally performing exercise, such as humans performing regular exercise or fish living in flowing water, may therefore be more resilient to the negative effects of UV-B. We tested this hypothesis in a fully factorial experiment, where we exposed mosquitofish (Gambusia holbrooki) to UV-B and control (no UV-B) conditions in flowing and still water...
February 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28195849/detection-and-alterations-of-acetylcarnitine-in-human-skeletal-muscles-by-1h-mrs-at-7-t
#10
Radka Klepochová, Ladislav Valkovič, Martin Gajdošík, Thomas Hochwartner, Harald Tschan, Michael Krebs, Siegfried Trattnig, Martin Krššák
OBJECTIVES: The aims of this study were to detect the acetylcarnitine resonance line at 2.13 ppm in the human vastus lateralis and soleus muscles, assess T1 and T2 relaxation times, and investigate the diurnal and exercise-related changes in absolute concentration noninvasively, using proton magnetic resonance spectroscopy at 7 T. MATERIALS AND METHODS: All measurements were performed on a 7 T whole-body Magnetom MR system with a 28-channel knee coil. Five healthy, moderately trained volunteers participated in the assessment of the detectability, repeatability, and relaxation times of acetylcarnitine...
February 10, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28192673/the-benefit-of-a-supplement-with-the-antioxidant-melatonin-on-redox-status-and-muscle-damage-in-resistance-trained-athletes
#11
Roberto C Leonardo-Mendonça, Javier Ocaña-Wilhelmi, Tomás de Haro, Carlos de Teresa-Galván, Eduardo Guerra-Hernández, Iryna Rusanova, Marisol Fernández-Ortiz, Ramy Ka Sayed, Germaine Escames, Darío Acuña-Castroviejo
Previous data showed that the administration of high doses of melatonin improved the circadian system in athletes. Here, we investigated in the same experimental paradigm whether the antioxidant properties of melatonin has also beneficial effects against exercise-induced oxidative stress and muscle damage in athletes. Twenty-four athletes were treated with 100 mg.day-1 of melatonin or placebo 30 min before bedtime during four weeks in a randomized double-blind scheme. Exercise intensity was higher during the study that before starting it...
February 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28191913/treatment-with-the-glucagon-receptor-antagonist-ly2409021-increases-ambulatory-blood-pressure-in-patients-with-type-2-diabetes
#12
Christof M Kazda, Juan Frias, Irene Foga, Xuewei Cui, Cristina B Guzman, Parag Garhyan, Cory Heilmann, Jihui Anne Yang, Thomas A Hardy
AIMS: To assess the effect of LY2409021 on systolic blood pressure (SBP) in patients with type 2 diabetes. MATERIALS AND METHODS: This 6-week, randomized, crossover study evaluated the effects of once-daily administration of LY2409021 20 mg vs those of placebo on SBP, diastolic BP (DBP), and mean arterial pressure (MAP) using 24-hour ambulatory BP monitoring (ABPM) in 270 subjects treated with diet/exercise ± metformin. Other measures included changes in glycemic control, serum lipids, and hepatic safety markers...
February 13, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28187765/does-a-lack-of-physical-activity-explain-the-rheumatoid-arthritis-lipid-profile
#13
Hiba AbouAssi, Margery A Connelly, Lori A Bateman, K Noelle Tune, Janet L Huebner, Virginia B Kraus, Deborah A Winegar, James D Otvos, William E Kraus, Kim M Huffman
BACKGROUND: In rheumatoid arthritis (RA), cardiovascular risk is associated with paradoxical reductions in total cholesterol, low density lipoprotein-cholesterol (LDL-C), and high density lipoprotein-cholesterol (HDL-C). Concentrations of small LDL (LDL-P) and HDL (HDL-P) particles are also reduced with increased inflammation and disease activity in RA patients. Here we sought to identify which measure(s) of inflammation, disease activity and cardiometabolic risk contribute most to the RA-associated lipoprotein profile...
February 10, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28183441/similar-metabolic-response-to-lower-versus-upper-body-interval-exercise-or-endurance-exercise
#14
Monique E Francois, Matthew J Graham, Evelyn B Parr, Nancy J Rehrer, Samuel J E Lucas, Stasinos Stavrianeas, James D Cotter
PURPOSE: To compare energy use and substrate partitioning arising from repeated lower- versus upper-body sprints, or endurance exercise, across a 24-h period. METHODS: Twelve untrained males (24±4 y) completed three trials in randomized order: (1) repeated sprints (five 30-s Wingate, 4.5-min recovery) on a cycle ergometer (SITLegs); (2) 50-min continuous cycling at 65% V̇O2max (END); (3) repeated sprints on an arm-crank ergometer (SITArms). Respiratory gas exchange was assessed before and during exercise, and at eight points across 22h of recovery...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28182858/effect-of-exercise-induced-dehydration-on-circulatory-markers-of-oxidative-damage-and-antioxidant-capacity
#15
Vincent P Georgescu, Tacito P Souza-Junior, Christian Behrens, Marcelo P Barros, Carlos Alves Bueno, Alan C Utter, Lisa S McAnulty, Steven R McAnulty
Dehydration is a common event associated with exercise. However, few studies have examined the effects of dehydration on plasma redox status in humans. Eighty-two athletes were recruited and had Baseline anthropometrics and blood samples obtained. Athletes then engaged in a dehydration protocol, training until 3% of pre-weight body mass was lost. Athletes returned to the lab and had Post-dehydration blood collected. Athletes then consumed an isotonic drink until pre-exercise body weight was reestablished. Blood was then recollected (1-h post-full rehydration (PFR))...
February 9, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28178530/lipidomic-adaptations-in-white-and-brown-adipose-tissue-in-response-to-exercise-demonstrate-molecular-species-specific-remodeling
#16
Francis J May, Lisa A Baer, Adam C Lehnig, Kawai So, Emily Y Chen, Fei Gao, Niven R Narain, Liubov Gushchina, Aubrey Rose, Andrea I Doseff, Michael A Kiebish, Laurie J Goodyear, Kristin I Stanford
Exercise improves whole-body metabolic health through adaptations to various tissues, including adipose tissue, but the effects of exercise training on the lipidome of white adipose tissue (WAT) and brown adipose tissue (BAT) are unknown. Here, we utilize MS/MS(ALL) shotgun lipidomics to determine the molecular signatures of exercise-induced adaptations to subcutaneous WAT (scWAT) and BAT. Three weeks of exercise training decrease specific molecular species of phosphatidic acid (PA), phosphatidylcholines (PC), phosphatidylethanolamines (PE), and phosphatidylserines (PS) in scWAT and increase specific molecular species of PC and PE in BAT...
February 7, 2017: Cell Reports
https://www.readbyqxmd.com/read/28168767/lifestyle-change-reduces-cardiometabolic-risk-factors-and-glucagon-like-peptide-1-levels-in-obese-first-degree-relatives-of-people-with-diabetes
#17
A Bowes, J Begley, D Kerr
BACKGROUND: Preventing type 2 diabetes in a real-world setting remains challenging. The present study aimed to assess the effectiveness of a lifestyle-based programme for individuals at high risk of developing type 2 diabetes as assessed by achieved weight loss, cardiovascular risk factors and glucagon-like peptide-1 (GLP-1). METHODS: Sixty-six obese individuals with history of diabetes in first-degree relatives participated in an 8-month lifestyle programme consisting of 12 × 1...
February 7, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28166118/all-extremity-exercise-training-improves-arterial-stiffness-in-older-adults
#18
Han-Kyul Kim, Chueh-Lung Hwang, Jeung-Ki Yoo, Moon-Hyon Hwang, Eileen M Handberg, John W Petersen, Wilmer W Nichols, Sofia Sofianos, Demetra D Christou
: Large elastic arteries stiffen with age which predisposes older adults to increased risk for cardiovascular disease. Aerobic exercise training is known to reduce the risk for cardiovascular disease, but the optimal exercise prescription for attenuating large elastic arterial stiffening in older adults is not known. PURPOSE: The purpose of this randomized controlled trial was to compare the effect of all-extremity high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on aortic pulse wave velocity (PWV) and carotid artery compliance in older adults...
February 4, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28163011/aerobic-endurance-training-improves-nonalcoholic-fatty-liver-disease-nafld-features-via-mir-33-dependent-autophagy-induction-in-high-fat-diet-fed-mice
#19
Parvin Ghareghani, Mehrnoosh Shanaki, Saeideh Ahmadi, Ali Reza Khoshdel, Neda Rezvan, Reza Meshkani, Maryam Delfan, Sattar Gorgani-Firuzjaee
Due to changes in life style, obesity and obesity related complication such as insulin resistance, type 2 diabetes and non-alcoholic fatty liver disease caused worldwide health problems. Regular exercise has been frequently prescribed to combat metabolic complication of obesity but its molecular mechanism has not been fully illustrated. We investigated molecular mechanism of lipid lowering effect of exercise training in high fat diet fed mice by focusing on miR-33 expression and autophagy pathway. 24 mice were assigned to normal chow (NC) (n=8), high-fat diet (HFD) (n=16) group and subjected to NC and HFD for 13-weeks...
February 2, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28160083/high-intensity-aerobic-interval-training-improves-aerobic-fitness-and-hba1c-among-persons-diagnosed-with-type-2-diabetes
#20
Eva Maria Støa, Sondre Meling, Lill-Katrin Nyhus, Glenn Strømstad, Karl Magnus Mangerud, Jan Helgerud, Solfrid Bratland-Sanda, Øyvind Støren
PURPOSE: It remains to be established how high-intensity aerobic interval training (HAIT) affects risk factors associated with type 2 diabetes (TD2). This study investigated effects of HAIT on maximal oxygen uptake (VO2max), glycated Hemoglobin type A1C (HbA1c), insulin resistance (IR), fat oxidation (FatOx), body weight (BW), percent body fat (%BF), lactate threshold (LT), blood pressure (BP), and blood lipid profile (BLP) among persons with T2D. Results were compared to the effects after a moderate-intensity training (MIT) program...
February 3, 2017: European Journal of Applied Physiology
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