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Exercise immunology

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https://www.readbyqxmd.com/read/29111601/active-migration-is-associated-with-specific-and-consistent-changes-to-gut-microbiota-in-calidris-shorebirds
#1
Alice Risely, David Waite, Beata Ujvari, Bethany Hoye, Marcel Klaassen
1.Gut microbes are increasingly recognised for their role in regulating an animal's metabolism and immunity. However, identifying repeatable associations between host physiological processes and their gut microbiota has proved challenging, in part because microbial communities often respond stochastically to host physiological stress (e.g. fasting, forced exercise or infection). 2.Migratory birds provide a valuable system in which to test host-microbe interactions under physiological extremes because these hosts are adapted to predictable metabolic and immunological challenges as they undergo seasonal migrations, including temporary gut atrophy during long-distance flights...
November 7, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28978180/immunological-consequences-of-ageing-microvascular-hemodynamic-changes-in-view-of-cancer-development-and-treatment
#2
REVIEW
Jinhyuk Fred Chung, Sang Joon Lee, Anil K Sood
Risk factors of cardiovascular diseases have long been implicated as risk factors for carcinogenesis, but clear explanations for their association have not been presented. In this article, fundamental concepts from carcinogenesis, microvascular hemodynamics, and immunity are collectively reviewed and analyzed in context of the known features of vascular ageing effects, in formulating a theory that suggests reduced microvascular immunity as an important driving factor for carcinogenesis. Furthermore, scientific, preclinical, and clinical evidence that support this new theory are presented in an interdisciplinary manner, offering new explanations to previously unanswered factors that impact cancer risks and its treatment outcome such as chronic drug use, temperature, stress and exercise effects among others...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28967239/effect-of-martial-arts-training-on-il-6-and-other-immunological-parameters-among-trinidadian-subjects
#3
Geeta Kurhade, B Shivananda Nayak, Arvind Kurhade, Chandrasekhar Unakal, Krutika Kurhade
BACKGROUND: Persistent bouts of extended exercise and heavy training are associated with depressed immune cell function. It has recently been demonstrated that IL-6 is produced locally in contracting skeletal muscles and acts on a wide range of tissues. Larger amounts of IL-6 are produced in response to exercise than any other cytokines. Though the majority of existing data obtained following prolonged exercise, it remains to be explained the effect of martial arts training on IL-6 and other immunological parameters and associated changes to the duration of this type of exercise...
September 29, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28955243/the-effect-of-a-100-km-ultra-marathon-under-freezing-conditions-on-selected-immunological-and-hematological-parameters
#4
Alena Žákovská, Beat Knechtle, Daniela Chlíbková, Marie Miličková, Thomas Rosemann, Pantelis T Nikolaidis
Although moderate exercise is beneficial for the human body and its immune system, exhaustive ultra-endurance performance in cold conditions might be harmful. The aim of this study was to examine the effect of a 100-km ultra-marathon under cold conditions (temperatures from -1°C to +1°C) on selected immunological, biochemical and hematological parameters. Participants were 15 runners (12 men and three women, age 40.3 ± 9.7 years, body mass 67.3 ± 9.0 kg and body height 1.74 ± 0.10 m, mean ± standard deviation)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28899687/proteomic-profiling-of-sweat-exosome-suggests-its-involvement-in-skin-immunity
#5
Chang-Xian Wu, Zheng-Fei Liu
Healthy human skin sustains an effective immune defense mechanism, formed by a complex physical and chemical epidermal barrier that coordinates with different cellular components of the skin immune system. However, the mechanism by which skin cells regulate local immune homeostasis in health and disease contexts is not well known. To investigate whether exosomes exist in sweat, sweat samples from healthy individuals were collected after aerobic exercise. Sweat exosome was isolated via differential ultracentrifugation, observed under transmission electron microscopy, measured by dynamic light scattering, and confirmed by immunoblot...
September 9, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28862198/physical-activity-influences-the-immune-system-of-breast-cancer-patients
#6
REVIEW
Thorsten Schmidt, Marion van Mackelenbergh, Daniela Wesch, Christoph Mundhenke
It has been suggested that physical activity in breast cancer patients can not only improve quality of life. Influences on physical and psychological levels have been evaluated, but effects on the immune system of breast cancer patients are hardly known. A PubMed search identified relevant trials and meta-analyses from 1970 to 2013. This review summarizes the results of international studies and the current discussion of effects of physical activity on the immune system of breast cancer patients. Highlighted are effects of physical activity on the immune system...
July 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28860122/exercise-induced-changes-in-glucose-metabolism-promote-physiologic-cardiac-growth
#7
Andrew A Gibb, Paul N Epstein, Shizuka Uchida, Yuting Zheng, Lindsey A McNally, Detlef Obal, Kartik Katragadda, Patrick J Trainor, Daniel J Conklin, Kenneth R Brittian, Michael T Tseng, Jianxun Wang, Steven P Jones, Aruni Bhatnagar, Bradford G Hill
Background -Exercise promotes metabolic remodeling in the heart, which is associated with physiologic cardiac growth; however, it is not known whether or how physical activity-induced changes in cardiac metabolism cause myocardial remodeling. In this study, we tested whether exercise-mediated changes in cardiomyocyte glucose metabolism are important for physiologic cardiac growth. Methods -We used radiometric, immunologic, metabolomic, and biochemical assays to measure changes in myocardial glucose metabolism in mice subjected to acute and chronic treadmill exercise...
August 31, 2017: Circulation
https://www.readbyqxmd.com/read/28818559/to-boldly-go-where-one-has-gone-before
#8
REVIEW
Keith W Kelley
Americans are suffering from a culture of taking pills. Six out of ten Americans utilize at least one prescription drug, and more than one in ten use five or more prescription medicines. Although this torrent of taking pills is already high, drug use in the USA has not yet crested. Prescription drugs have specific targets, but often they adversely affect other tissues and organs. In keeping with the mission of the National Institutes of Health, Brain, Behavior, and Immunity searches for the underlying cause and potential efficacy of both drug and non-drug interventions...
November 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28780738/john-p-craig-md-mph-physician-scientist-educator-and-mentor-1923-2016
#9
M A Haseeb, Pascal James Imperato
John P. Craig (1923-2016) was an eminent physician-scientist, gifted educator, and greatly valued mentor. Born in West Liberty, Ohio on 29 November 1923, he attended Oberlin College, and received his medical degree from Case Western Reserve University, School of Medicine. This was followed by an internship at Yale University Medical Center, and then service in the U.S. Army during the Korean War. He was a battalion surgeon, preventive medicine officer, and epidemiologist. While in Korea, he conducted important investigations of hemorrhagic fever among American troops...
August 5, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28769550/differences-in-gluten-protein-composition-between-old-and-modern-durum-wheat-genotypes-in-relation-to-20th-century-breeding-in-italy
#10
Michele A De Santis, Marcella M Giuliani, Luigia Giuzio, Pasquale De Vita, Alison Lovegrove, Peter R Shewry, Zina Flagella
The impact of breeding on grain yields of wheat varieties released during the 20th century has been extensively studied, whereas less information is available on the changes in gluten quality associated with effects on the amount and composition of glutenins and gliadins. In order to explore the effects of breeding during the 20th century on gluten quality of durum wheat for processing and health we have compared a set of old and modern Italian genotypes grown under Mediterranean conditions. The better technological performance observed for the modern varieties was found to be due not only to the introgression of superior alleles of high (HMW-GS) and low molecular weight (LMW-GS) glutenin subunits encoded at Glu-B1 and Glu-B3 loci, but also to differential expression of specific storage proteins...
July 2017: European Journal of Agronomy: the Journal of the European Society for Agronomy
https://www.readbyqxmd.com/read/28751932/does-regular-exercise-counter-t-cell-immunosenescence-reducing-the-risk-of-developing-cancer-and-promoting-successful-treatment-of-malignancies
#11
REVIEW
James E Turner, Patricia C Brum
Moderate intensity aerobic exercise training or regular physical activity is beneficial for immune function. For example, some evidence shows that individuals with an active lifestyle exhibit stronger immune responses to vaccination compared to those who are inactive. Encouragingly, poor vaccine responses, which are characteristic of an ageing immune system, can be improved by single or repeated bouts of exercise. In addition, exercise-induced lymphocytosis, and the subsequent lymphocytopenia, is thought to facilitate immune surveillance, whereby lymphocytes search tissues for antigens derived from viruses, bacteria, or malignant transformation...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28744226/the-mucosal-immune-function-is-not-compromised-during-a-period-of-high-intensity-interval-training-is-it-time-to-reconsider-an-old-assumption
#12
Dennis-Peter Born, Christoph Zinner, Billy Sperlich
Purpose: The aim of the study was to evaluate the mucosal immune function and circadian variation of salivary cortisol, Immunoglobin-A (sIgA) secretion rate and mood during a period of high-intensity interval training (HIIT) compared to long-slow distance training (LSD). Methods: Recreational male runners (n = 28) completed nine sessions of either HIIT or LSD within 3 weeks. The HIIT involved 4 × 4 min of running at 90-95% of maximum heart rate interspersed with 3 min of active recovery while the LSD comprised of continuous running at 70-75% of maximum heart rate for 60-80 min...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28741519/cancer-prevention-lessons-learned-and-future-directions
#13
REVIEW
Barbara K Dunn, Barnett S Kramer
In this review, we address selected areas that are central to the state-of-the-art of cancer prevention science. The emphasis on prevention as a viable and critical approach to decreasing cancer mortality has gained traction in recent years, evidenced by its inclusion in the US Vice President's Cancer Initiative (also termed 'Moonshot'). Cancer prevention occurs by arresting, slowing down, or reversing the carcinogenic process before invasion into surrounding tissue or by avoiding or blocking causative exposure...
December 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28738385/pharmacological-and-nonpharmacological-interventions-to-arrest-neuroprogression-in-psychiatric-disorders
#14
Fotini Boufidou, Angelos Halaris
The concept of neuroprogression describes the progressive course of the disorder and stresses the progressive, recurrent, and chronic course of the disease entity under consideration. It subsumes clinical manifestations of the disease process and may also entail morphological, biochemical, neurochemical, immunological, physiological, and genetic aspects that contribute to the progressive course of the disease in question. In an attempt to identify the appropriate agent or method that could arrest neuroprogression in psychiatric patients, we conducted an evaluation of the use of anti-inflammatory drugs under the perspective of current pharmacological and neurophysiological data...
2017: Modern Trends in Pharmacopsychiatry
https://www.readbyqxmd.com/read/28694775/yoga-meditation-and-mind-body-health-increased-bdnf-cortisol-awakening-response-and-altered-inflammatory-marker-expression-after-a-3-month-yoga-and-meditation-retreat
#15
B Rael Cahn, Matthew S Goodman, Christine T Peterson, Raj Maturi, Paul J Mills
Thirty-eight individuals (mean age: 34.8 years old) participating in a 3-month yoga and meditation retreat were assessed before and after the intervention for psychometric measures, brain derived neurotrophic factor (BDNF), circadian salivary cortisol levels, and pro- and anti-inflammatory cytokines. Participation in the retreat was found to be associated with decreases in self-reported anxiety and depression as well as increases in mindfulness. As hypothesized, increases in the plasma levels of BDNF and increases in the magnitude of the cortisol awakening response (CAR) were also observed...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28692774/developing-and-refining-new-candidate-criteria-for-sle-classification-an-international-collaboration
#16
Sara K Tedeschi, Sindhu R Johnson, Dimitrios Boumpas, David Daikh, Thomas Dörner, David Jayne, Diane Kamen, Kirsten Lerstrøm, Marta Mosca, Rosalind Ramsey-Goldman, Corine Sinnette, David Wofsy, Josef S Smolen, Raymond P Naden, Martin Aringer, Karen H Costenbader
OBJECTIVES: We aimed to define candidate criteria within multi-phase development of SLE classification criteria, jointly supported by EULAR and ACR. Prior steps included item generation and reduction by Delphi exercise, further narrowed to 21 items in a Nominal Group Technique exercise. Our objectives were to apply an evidence-based approach to the 21 candidate criteria, and to develop hierarchical organization of criteria within domains. METHODS: A literature review identified the sensitivity and specificity of the 21 candidate criteria...
July 10, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28686557/the-biopsychosocial-model-40-years-of-application-in-psychiatry
#17
G Papadimitriou
In 1977, the American pathologist and psychiatrist George Engel (1913-1999) published in the Journal Science his paper "TheIn 1977, the American pathologist and psychiatrist George Engel (1913-1999) published in the Journal Science his paper "Theneed for a new medical model: A challenge for biomedicine", introducing the term Biopsychosocial Model. This model basedon the results of Engel's studies in ulcerative colitis, depression and psychogenic pain, constituted a challenge for biomedicineand the biomedical model...
April 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/28630656/physical-activity-black-carbon-exposure-and-dna-methylation-in-the-foxp3-promoter
#18
Stephanie Lovinsky-Desir, Kyung Hwa Jung, Jacqueline R Jezioro, David Z Torrone, Mariangels de Planell-Saguer, Beizhan Yan, Frederica P Perera, Andrew G Rundle, Matthew S Perzanowski, Steven N Chillrud, Rachel L Miller
BACKGROUND: Physical activity is associated with improvement in lung function; however, pollution exposure during physical activity can lead to a transient reduction in lung function. This paradoxical relationship may be linked to altered T regulatory (Treg) cell activity, which increases with exercise and suppresses airway inflammation, but decreases in association with exposure to air pollution. To clarify these relationships, we investigated buccal cell DNA methylation of the forkhead box p3 (FOXP3) gene promoter, a proposed biomarker of Treg activity...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28616851/effect-of-aerobic-interval-training-on-serum-il-10-tnf%C3%AE-and-adipokines-levels-in-women-with-multiple-sclerosis-possible-relations-with-fatigue-and-quality-of-life
#19
Motahare Mokhtarzade, Rouholah Ranjbar, Nastaran Majdinasab, Darpan Patel, Mehdieh Molanouri Shamsi
PURPOSE: Multiple sclerosis is associated with immune system dysfunction and chronic inflammation; however, possible relations between immunologic and metabolic factors and some psychological indexes such as fatigue and quality of life, especially in relation to exercise training, have not yet been investigated. The present study was designed to investigate the effect of aerobic interval training on interleukin-10/tumor necrosis factor ratio and adipokine (leptin and adiponectin) concentrations in women with multiple sclerosis...
August 2017: Endocrine
https://www.readbyqxmd.com/read/28571979/impact-of-high-fat-diet-on-the-intestinal-microbiota-and-small-intestinal-physiology-before-and-after-the-onset-of-obesity
#20
REVIEW
João Ricardo Araújo, Julie Tomas, Christiane Brenner, Philippe J Sansonetti
The modulation of the intestinal microbiota by high-fat diet (HFD) has a major impact on both immunological and metabolic functions of the host. Taking this into consideration, the aim of this contribution is to review the impact of HFD on microbiota profile and small intestinal physiology before and after the onset of obesity and its metabolic complications. Evidence from animal studies suggest that before the onset of obesity and its metabolic complications, HFD induces intestinal dysbiosis - encompassing changes in composition balance and massive redistribution with bacteria occupying intervillous spaces and crypts - associated with early physiopathological changes, predominantly in the ileum, such as low-grade inflammation, decreased antimicrobial peptides expression, impaired mucus production, secretion and layer's thickness, and decreased expression of tight junction proteins...
October 2017: Biochimie
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