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https://www.readbyqxmd.com/read/28653665/circulating-endocannabinoids-from-whence-do-they-come-and-where-are-they-going
#1
Cecilia J Hillard
The goal of this review is to summarize studies in which concentrations of circulating endocannabinoids in humans have been examined in relationship to physiological measurements and pathological status. The roles of endocannabinoids in the regulation of energy intake and storage have been well studied and the data obtained consistently support the hypothesis that endocannabinoid signaling is associated with increased consumption and storage of energy. Physical exercise mobilizes endocannabinoids, which could contribute to refilling of energy stores and also to the analgesic and mood-elevating effects of exercise...
June 27, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28650277/attenuated-post-exercise-heart-rate-recovery-in-patients-with-systemic-lupus-erythematosus-the-role-of-disease-severity-and-beta-blocker-treatment
#2
P Bienias, M Ciurzyński, A Chrzanowska, I Dudzik-Niewiadomska, K Irzyk, K Oleszek, A Kalińska-Bienias, B Kisiel, W Tłustochowicz, P Pruszczyk
Objective Sinus tachycardia is frequently reported in systemic lupus erythematosus (SLE), while there are limited data on post-exercise ability to slow heart rate (i.e. heart rate recovery, HRR) in this group of patients. Methods We studied consecutive 70 patients with SLE and 30 healthy controls. All examined individuals underwent detailed clinical examination, echocardiography, Holter monitoring with heart rate variability and treadmill stress test using Bruce's protocol. HRR values were calculated as the difference between maximum HR during exercise and HR at the first (HRR1) and third (HRR3) minute of rest...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28643129/magnetohydrodynamic-voltage-recorder-for-comparing-peripheral-blood-flow
#3
Kevin J Wu, T Stan Gregory, Michael C Lastinger, Jonathan R Murrow, Zion Tsz Ho Tse
Blood flow is a clinical metric for monitoring of cardiovascular diseases but current measurements methods are costly or uncomfortable for patients. It was shown that the interaction of the magnetic field (B 0) during MRI and blood flow in the body, through the magnetohydrodynamic (MHD) effect, produce voltages (V MHD) observable through intra-MRI electrocardiography (ECG), which are correlated with regional blood flow. This study shows the reproducibility of V MHD outside the MRI and its application in a portable flow monitoring device...
June 22, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28630705/physiological-effects-of-stress-related-to-helicopter-travel-in-federal-emergency-management-agency-search-and-rescue-canines
#4
E Perry, N Gulson, T-W Liu Cross, K S Swanson
Working canines are deployed by the Federal Emergency Management Agency (FEMA), as part of a National Disaster Response Plan. Stress associated with helicopter flight and the resulting physical effects on the dog are unknown. Our objective was to test the hypotheses that (1) helicopter travel affects the physiology and faecal microbiota of working canines, but that (2) physiological consequences of helicopter travel will not negatively affect their work performance. A total of nine FEMA canines were loaded onto helicopters and flown for 30 min in July 2015...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28627013/regular-exercise-improves-the-well-being-of-parents-of-children-with-cancer
#5
Gail C Halliday, Gordon C P Miles, Julie A Marsh, Rishi S Kotecha, Angela J Alessandri
AIM: Parents of children with cancer describe impaired physical and social functioning, sleep disturbance and poor mental health. Exercise-related interventions impact positively on these quality of life domains, but have not been examined in this population. The aim of this longitudinal pilot study was to explore the feasibility of a 12-week pedometer-monitored walking intervention among parents of children with cancer, assessing adherence to a set activity target of 70,000 steps per week, and to explore the benefits of physical activity on mental and physical health...
June 19, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28626339/effects-of-2-week-intermittent-training-in-hypobaric-hypoxia-on-the-aerobic-energy-metabolism-and-performance-of-cycling-athletes-with-disabilities
#6
Sang-Hoon Kim, Ho-Jung An, Jung-Hyun Choi, Yong-Youn Kim
[Purpose] The present study aimed at examining changes in aerobic energy metabolism and performance in cycling athletes after 2 weeks of intermittent training in a multistep hypobaric hypoxia environment. [Subjects and Methods] We also aimed at using the findings to propose an efficient training program in hypobaric hypoxia for endurance athletes with disabilities. The study participants were three cycling athletes with physical disabilities from the Korean national team (A, B, and C athletes). They underwent complex (repetition, interval, and continued) training with a roller-type cycle in a multistep hypobaric hypoxia environment (simulated altitude, 4,000 m above sea level)...
June 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28626082/significant-role-of-the-cardio-postural-interaction-in-blood-pressure-regulation-during-standing
#7
Da Xu, Ajay Verma, Amanmeet Garg, Michelle Bruner, Reza Fazel-Rezai, Andrew P Blaber, Kouhyar Tavakolian
Cardiovascular and postural control systems have been studied independently despite the increasing evidence showing the importance of cardio-postural interaction in blood pressure regulation. In this study, we aimed to assess the role of cardio-postural interaction in relation to cardiac baroreflex in blood pressure regulation under orthostatic stress before and after mild exercise. Physiological variables representing cardiovascular control (heart rate and systolic blood pressure), lower limb muscle activation (electromyography), and postural sway (center of pressure derived from force and moment data during sway) were measured from 17 healthy participants (25±2 years; 8 females) during a sit-to-stand test before and after sub-maximal exercise...
June 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28619736/effects-of-hypercapnia-on-myocardial-blood-flow-in-healthy-human-subjects
#8
Matthieu Pelletier-Galarneau, Robert A deKemp, Chad Rrn Hunter, Ran Klein, Michael Klein, Joel Ironstone, Joseph A Fisher, Terrence Ruddy
Background: Elevation of end-tidal partial pressure of CO2 (PETCO2) increases cerebral and myocardial blood flow (MBF), suggesting that it may be a suitable alternative to pharmacological stress or exercise for myocardial perfusion imaging. The purpose of this study was to document the pharmacodynamics of CO2 on MBF using prospective end-tidal targeting to precisely control arterial PCO2 and use positron emission tomography (PET) to measure the outcome variable, MBF Methods: 10 healthy males underwent serial (82)Rb PET/CT imaging...
June 15, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28619304/the-prevalence-rate-of-deviations-in-body-constitutions-and-related-factors-in-follow-up-stage-breast-cancer-patients-a-nationwide-study
#9
Shu-Chuan Amy Lin, Pei-Yi Chu, Li-Li Chen, Yi-Chang Su, Shin-Mae Wang
OBJECTIVES: The aim of this study was to apply a rigorous traditional Chinese medicine (TCM) body constitution questionnaire (BCQ) to survey the prevalence rate of deviations in body constitution and to explore the health-related lifestyle behavior factors of deviations in body constitution. DESIGN: A cross-sectional study was administered through postal mail. Subjects were recruited from a national organization for breast cancer patients (Taiwan Breast Cancer Alliance)...
June 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28617840/a-new-test-for-diagnosing-vasovagal-syncope-standing-after-treadmill-test-with-sublingual-nitrate-administration
#10
Tae-Hoon Kim, Ho-Jun Jang, Sihun Kim, Sung Yun Cho, Kyung Sun Song, Christopher Pickett, Heiko J Schmitt, Juyong Lee
INTRODUCTION: Increased adrenergic tone might be an additional trigger of orthostatic stress of vasovagal syncope (VVS). Exercise before standing might provide increased sensitivity compared to standing using a sublingual nitroglycerines protocol during tilt table testing. The aim of this study was to evaluate the diagnostic value of treadmill testing before standing with nitroglycerin administration. METHODS AND RESULTS: A total of 36 patients with syncope or presyncope were enrolled for the test...
2017: PloS One
https://www.readbyqxmd.com/read/28617071/an-endothelial-link-between-the-benefits-of-physical-exercise-in-dementia
#11
Lianne J Trigiani, Edith Hamel
The current absence of a disease-modifying treatment for Alzheimer's disease (AD) and vascular cognitive impairment and dementia (VCID) highlights the necessity for investigating the benefits of non-pharmacological approaches such as physical exercise (PE). Although evidence exists to support an association between regular PE and higher scores on cognitive function tests, and a slower rate of cognitive decline, there is no clear consensus on the underlying molecular mechanisms of the advantages of PE. This review seeks to summarize the positive effects of PE in human and animal studies while highlighting the vascular link between these benefits...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28616350/anomalous-right-coronary-artery-origin-with-interarterial-pathway-importance-of-morphological-origin-assessment-and-the-role-of-percutaneous-interventionism
#12
Daniel García Iglesias, Lidia Martínez Fernández, María Martín Fernández, Laura García Suárez, Laura García Pérez, Juan Calvo Blanco, Helena Cigarrán Sexto, Raquel Del Valle Fernández, César Morís de la Tassa
Anomalies in coronary arteries (CA) are an important issue in cardiology and cardiovascular surgery. Specifically the anomalous origin of the right coronary artery (RCA) is of special importance because it is the most frequent anomaly. Clinical practice guidelines recommend the revascularization treatment in cases of interarterial pathway and documented myocardial ischemia and when hypoplasia, compression or obstruction is evident. We report two different cases of patients with anomalous origin of RCA and associated interarterial pathway...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28612908/association-between-fractional-flow-reserve-and-duke-treadmill-score-in-patients-with-single-vessel-disease
#13
Süleyman Kalaycı, Belma Kalaycı, Ekrem Şahan, Asiye Ayça Ayyılmaz Boyacı
BACKGROUND: Duke Treadmill score (DTS) is an index that provides prognostic information calculated at exercise stress test (EST). Fractional flow reserve (FFR) is an invasive method used to evaluate intermediate coronary stenosis. The direct relation of DTS and FFR has not been studied to date. AIM: The present study aims to investigate the relationship between the Duke Treadmill score (DTS) and fractional flow reserve (FFR). METHODS: The study population consisted of a total of 106 patients who have single-vessel disease, as confirmed by the coronary angiography (CAG), performed following EST, and whose FFRs have been measured...
June 14, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28610801/effect-of-myocardial-infarction-with-nonobstructive-coronary-arteries-on-physical-capacity-and-quality-of-life
#14
Maria Daniel, Stefan Agewall, Kenneth Caidahl, Olov Collste, Christina Ekenbäck, Mats Frick, Shams Y-Hassan, Logman Henareh, Tomas Jernberg, Karin Malmqvist, Karin Schenck-Gustafsson, Peder Sörensson, Örjan Sundin, Claes Hofman-Bang, Per Tornvall
Patients with myocardial infarction with nonobstructive coronary arteries (MINOCA), including Takotsubo syndrome (TS), are considered to have a better survival compared with those with coronary heart disease (CHD). Studies of patients with MINOCA measuring physical and mental function including matched control groups are lacking. The aim of this study was to determine the physical capacity and quality of life in patients with MINOCA. One-hundred patients with MINOCA along with TS (25%) were investigated from 2007 to 2011...
May 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28599829/noninvasive-coronary-flow-reserve-predicts-response-to-exercise-in-asymptomatic-severe-aortic-stenosis
#15
Patrick Meimoun, Daniel Czitrom, Jérome Clerc, Jean Christophe Seghezzi, Sonia Martis, Alain Berrebi, Frederic Elmkies
BACKGROUND: In patients with asymptomatic aortic stenosis (AS), exercise stress echocardiography (ESE) provides additional prognostic information beyond baseline. The coronary flow velocity reserve (CFVR) is impaired in AS, but its link with exertion is unknown in this setting. The aim of this study was to test the hypothesis that CFVR could predict exercise capacity and abnormal exercise test results in AS. METHODS: Noninvasive CFVR and symptom-limited semisupine ESE were prospectively performed the same day in 43 patients with asymptomatic isolated severe AS (mean age, 68...
June 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28597120/long-term-prognostic-implications-of-myocardial-perfusion-imaging-in-octogenarians-an-all-comer-cohort-study
#16
Athanasios Katsikis, Athanasios Theodorakos, Vassiliki Manira, Spyridon Papaioannou, Genovefa Kolovou, Vassilios Voudris, Maria Koutelou
PURPOSE: Evaluation of the long-term prognostic value of myocardial perfusion imaging (MPI) in octogenarians. METHODS: Six hundred and twenty-nine octogenarians [51% previous myocardial infarction (MI) or revascularization] who underwent single-isotope MPI (78% (201)Tl, 22% (99m)Tc-tetrofosmin) with exercise (38% Bruce, 2% leg ergometry) or pharmacologic (58% adenosine, 2% dobutamine) stress were studied. All patients had LVEF determined by echocardiography within 1 month from MPI...
June 8, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28592459/the-effects-of-10-days-of-separate-heat-and-hypoxic-exposure-on-heat-acclimation-and-temperate-exercise-performance
#17
Rebecca A Neal, Jamie Prout, Joseph Costello, Heather C Massey, Michael J Tipton, John S Young, Jo Corbett
Adaptations to heat and hypoxia are typically studied in isolation, but are often encountered in combination. Whether the adaptive response to multiple stressors affords the same response as when examined in isolation is unclear. We examined: i) the influence of overnight moderate normobaric hypoxia on the time course and magnitude of adaption to daily heat exposure; ii) whether heat acclimation (HA) was ergogenic and if this was influenced by an additional hypoxic-stimulus. Eight males (V̇O2max=58.5[8.3] mL·kg(-1)·min(-1)) undertook two 11-day HA programmes (balanced-crossover design), once with overnight normobaric hypoxia (8[1] h per night; 10 nights; FIO2=0...
June 7, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28590298/diagnostic-and-prognostic-implications-of-exercise-treadmill-and-rest-first-pass-radionuclide-angiography-in-patients-with-pulmonary-hypertension
#18
Yen-Wen Wu, Pei-Ying Hsu, Yen-Hung Lin, Mei-Fang Cheng, Chi-Lun Ko, Yih-Hwen Huang, Ruoh-Fang Yen, Jin-Shing Chen, Jou-Wei Lin, Hsao-Hsun Hsu
PURPOSE: Pulmonary hypertension (PH) is characterized by abnormally increased pulmonary vascular pressure, leading to deteriorated right ventricular function and premature death. Pulmonary mean transit time (PMTT) and biventricular function response to exercise in first-pass radionuclide angiography (FP-RNA) may provide early detection and timely disease monitoring of PH. This study aimed to investigate the diagnostic and prognostic values of this imaging modality in PH patients. METHODS: Left and right ventricular ejection fraction (LVEF/RVEF) and PMTT at rest and immediately after exercise treadmill test were measured by FP-RNA in 77 consecutive patients with clinical presentations suggestive of PH (aged 46 ± 15 years, 33 men), mostly with symptoms of unexplained progressive dyspnea...
June 5, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28589135/effect-of-lower-and-upper-body-high-intensity-training-on-genes-associated-with-cellular-stress-response
#19
Małgorzata Żychowska, Andrzej Kochanowicz, Kazimierz Kochanowicz, Jan Mieszkowski, Bartłomiej Niespodziński, Stanisław Sawczyn
This study aimed to compare the effect of upper and lower body high intensity exercise (HIE) on select gene expression in athletes. Fourteen elite male artistic gymnasts (age 20.9 ± 2.6 years; weight 68.6 ± 7.2 kg; fat free mass 63.6 ± 6.7 kg; height 1.70 ± 0.04 m) performed lower and upper body 30 s Wingate Tests (WAnTs) before and after eight weeks of specific HIIT. Two milliliters of blood was collected before and after (5, 30 min, resp.) lower and upper body WAnTs, and select gene expression was determined by PCR...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28588747/antifatigue-effect-of-luteolin-6-c-neohesperidoside-on-oxidative-stress-injury-induced-by-forced-swimming-of-rats-through-modulation-of-nrf2-are-signaling-pathways
#20
Fang-Fang Duan, Ying Guo, Jing-Wan Li, Ke Yuan
Luteolin-6-C-neohesperidoside (LN) is a flavonoid isolated from moso bamboo leaf. This study was performed to evaluate the antifatigue effect of LN on a rat model undergoing the weight-loaded forced swimming test (FST). Briefly, male Sprague-Dawley rats (20-22 weeks old) were forced to undertake exhaustive swimming every other day for 3 weeks. Each swimming session was followed by the administration of distilled water, LN (25-75 mg/kg), or ascorbic acid (100 mg/kg) 1 h later. Oral administration of LN significantly improved exercise endurance; normalized alterations in energy metabolic markers; and decreased serum lactic acid, lactate dehydrogenase, and blood urea nitrogen levels of rats that underwent FST...
2017: Oxidative Medicine and Cellular Longevity
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