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coronavirus disease-2019: A tocsin to our aging, unfit, corpulent, and immunodeficient society

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Journal of Sport and Health Science 2020年第4期9卷 293-301页

作者： david c.nieman Department of Biology College of Arts and SciencesAppalachian State UniversityNorth Carolina Research CampusKannapolisNC 28081USA

Acute and chronic respiratory illnesses cause widespread morbidity and mortality,and this class of illness now includes the novel coronavirus severe acute respiratory syndrome that is causing coronavirus disease-2019(cOVID-19).The world is experiencing a major demographic shift toward an older,obese,and physically inactive *** factor assessments based on pandemic data indicate that those at higher risk for severe illness from cOVID-19 include older males,and people of all ages with obesity and related comorbidities such as hypertension and type 2 *** in and of itself leads to negative changes in innate and adaptive immunity,a process termed *** causes systemic inflammation and adversely impacts immune function and host defense in a way that patterns *** primary prevention strategies to reduce the risk for cOVID-19 at both the community and individual levels include mitigation activities and the adoption of lifestyle practices consistent with good immune *** and human studies support the idea that,in contrast to high exercise workloads,regular moderate-intensity physical activity improves immunosurveillance against pathogens and reduces morbidity and mortality from viral infection and respiratory illnesses including the common cold,pneumonia,and *** odds are high that infectious disease pandemics spawned by novel pathogens will continue to inflict morbidity and mortality as the world’s population becomes older and more ***-19 is indeed a wake-up call,a tocsin,to the world that primary prevention countermeasures focused on health behaviors and hygiene demand our full attention and support.

关键词： cOVID-19 Exercise Immunology Infection Obesity

Physical activity lowers the risk for acute respiratory infections:Time for recognition

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Journal of Sport and Health Science 2022年第6期11卷 648-655,F0003页

作者： david c.nieman camila A.Sakaguchi Human Performance Laboratory Appalachian State UniversityNorth Carolina Research CampusKannapolisNC 28081USA

Physical inactivity is a well-established risk factor for chronic diseases,such as cardiovascular disease,cancer,and diabetes *** is a growing awareness that physical inactivity should also be regarded as a risk factor for acute respiratory infections(ARIs).ARIs,such as the common cold,influenza,pneumonia,and coronavirus disease 2019(cOVID-19),are among the most pervasive diseases on earth and cause widespread morbidity and *** in support of the linkage between ARIs and physical inactivity has been strengthened during the cOVID-19 pandemic because of increased scientific ***-scale studies have consistently reported that the risk for severe cOVID-19 outcomes is elevated in cohorts with low physical activity and/or physical fitness,even after adjusting for other risk *** lowered risk for severe cOVID-19 and other ARIs in physically active groups is attributed to exercise-induced immunoprotective effects,including enhanced surveillance of key immune cells and reduced chronic *** consensus groups,including those who submitted the Physical Activity Guidelines for Americans,have not yet given this area of research the respect that is *** is time to add“reduced risk for ARIs”to the“Exercise is Medicine”list of physical activity-related health benefits.

关键词： Acute respiratory infections cOVID-19 Immune system Physical activity Pneumonia

Exercise immunology:Future directions

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Journal of Sport and Health Science 2020年第5期9卷 432-445页

作者： david c.nieman Brandt D.Pence Human Performance Laboratory Appalachian State UniversityNorth Carolina Research CampusKannapolisNC 28081USA School of Health Studies University of MemphisMemphisTN 38152USA

Several decades of research in the area of exercise immunology have shown that the immune system is highly responsive to acute and chronic exercise *** exercise bouts enhance immunosurveillance and when repeated over time mediate multiple health *** of the studies prior to 2010 relied on a few targeted outcomes related to immune *** the past decade,technologic advances have created opportunities for a multi-omics and systems biology approach to exercise *** article provides an overview of metabolomics,lipidomics,and proteomics as they pertain to exercise immunology,with a focus on *** review also summarizes how the composition and diversity of the gut microbiota can be influenced by exercise,with applications to human health and ***-induced improvements in immune function may play a critical role in countering immunosenescence and the development of chronic diseases,and emerging omics technologies will more clearly define the underlying *** review summarizes what is currently known regarding a multi-omics approach to exercise immunology and provides future directions for investigators.

关键词： Exercise Immunology Lipidomics Metabolomics Proteomics

The compelling link between physical activity and the body's defense system

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Journal of Sport and Health Science 2019年第3期8卷 201-217页

作者： david c.nieman Laurel M.Wentz Human Performance Laboratory Appalachian State University North Carolina Research Campus Department of Nutrition and Health care Management Appalachian State University

This review summarizes research discoveries within 4 areas of exercise immunology that have received the most attention from investigators :(1) acute and chronic effects of exercise on the immune system,(2) clinical benefits of the exercise—immune relationship,(3) nutritional influen?ces on the immune response to exercise, and(4) the effect of exercise on immunosenescence. These scientific discoveries can be organized into distinctive time periods: 1900-1979, which focused on exercise-induced changes in basic immune cell counts and function; 1980-1989, during which seminal papers were published with evidence that heavy exertion was associated with transient immune dysfunction, elevated inflammatory biomarkers,and increased risk of upper respiratory tract infections; 1990-2009, when additional focus areas were added to the field of exercise immunology including the interactive effect of nutrition, effects on the aging immune system, and inflammatory cytokines; and 2010 to the present, when technological advances in mass spectrometry allowed system biology approaches(i.e., metabolomics, proteomics, lipidomics, and microbiome characterization) to be applied to exercise immunology studies. The future of exercise irmmunology will take advantage of these technologies to provide new insights on the interactions between exercise, nutrition, and immune function, with application down to the person?alized level. Additionally, these methodologies will improve mechanistic understanding of how exercise-induced immune perturbations reduce the risk of common chronic diseases.

关键词： Aging Exercise Immunology Infection Inflammation Mass Snectrometry Nutrition

clinical implications of exercise immunology

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Journal of Sport and Health Science 2012年第1期1卷 12-17页

作者： david c.nieman Human Performance Laboratory Appalachian State UniversityNorth Carolina Research CampusKannapolisNC 28081USA

Maintaining leanness and a physically active lifestyle during adulthood reduces systemic inflammation,an underlying factor in multiple chronic *** anti-inflammatory influence of near-daily physical activity in lowering c-reactive protein,total blood leukocytes,interleukin-6,and other inflammatory cytokines may play a key role in lowering risk of cardiovascular disease,certain types of cancer,type 2 diabetes,sarcopenia,and *** exercise training causes favorable perturbations in immunity and a reduction in incidence of upper respiratory tract infection(URTI).During each bout of moderate exercise,an enhanced recirculation of immunoglobulins,neutrophils,and natural killer cells occurs that persists for up to 3-h *** exercise-induced surge in immune cells from the innate immune system is transient but improves overall surveillance against *** moderate exercise continues on a near-daily basis for 12-15 weeks,the number of symptoms days with URTI is decreased 25％-50％ compared to randomized sedentary *** and animal studies support this inverse relationship between URTI risk and increased physical ***(c)2012,Shanghai University of *** and hosting by Elsevier *** rights reserved.

关键词： Inflammation Natural killer cells Neutrophils Physical activity Upper respiratory tract infection

The anti-inflammatory effects of exercise on autoimmune diseases:A 20-year systematic review

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Journal of Sport and Health Science 2024年第3期13卷 353-367,I0001页

作者： Beibei Luo Dao Xiang Xiaorong Ji Xuan chen Rui Li Shuxin Zhang Yujun Meng david c.nieman Peijie chen School of Exercise and Health Shanghai University of SportShanghai 200438China Shanghai Key Laboratory of Human Performance Shanghai University of SportShanghai 200438China Department of Diving and Hyperbaric Medicine Naval Medical CenterShanghai 200433China National Key Laboratory of Immunity and Inflammation Naval Medical UniversityShanghai 200433China Human Performance Laboratory Appalachian State UniversityNorth Carolina Research CampusKannapolisNC 28081USA Research Institute for Doping control Shanghai University of SportShanghai 200438China

Background:The anti-inflammatory effect of exercise may be an underlying factor in improving several autoimmune *** aim of this systematic review was to examine the evidence on the role of exercise training in mitigating inflammation in adolescents and adults with autoimmune ***:PubMed,Web of Science,and Embase databases were systematically reviewed for related studies published between January 1,2003,and August 31,*** randomized and non-randomized controlled trials of exercise interventions with autoimmune disease study participants that evaluated inflammation-related biomarkers were *** quality of evidence was assessed using the Tool for the assEssment of Study qualiTy and reporting in EXercise scale and cochrane bias risk ***:A total of 14,565 records were *** screening the titles,abstracts,and full texts,87 were eligible for the systematic *** studies were conducted in 25 different countries and included a total of 2779 participants(patients with autoimmune disease,in exercise or control groups).Overall,the evidence suggests that inflammation-related markers such as c-reactive protein,interleukin 6,and tumor necrosis factor a were reduced by regular exercise *** exercise interventions combined with multiple exercise modes were associated with greater ***:Regular exercise training by patients with autoimmune disease exerts an anti-inflammatory *** systematic review provides support for the promotion and development of clinical exercise intervention programs for patients with autoimmune *** patients with autoimmune disease can safely adopt moderate exercise training protocols,but changes in inflammation biomarkers will be modest at *** exercise interventions are ineffective or even modestly but transiently pro-inflammatory.

关键词： Autoimmune diseases cytokines Inflammation Physical activity Training

A 6-week diet and exercise intervention alters metabolic syndrome risk factors in obese chinese children aged 11-13 years

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Journal of Sport and Health Science 2013年第4期2卷 236-241页

作者： Beibei Luo Yang Yang david c.nieman Yajun Zhang Jie Wang Ru Wang Peijie chen Key Laboratory of Exercise and Health Sciences of Ministry of Education Shanghai University of Sport Shanghai Municipal center for Students’ Physical Fitness and Health Surveillance Human Performance Laboratory Appalachian State UniversityNorth Carolina Research Campus 458th Hospital of chinese People’s Liberation Army

Purpose:A randomized,controlled trial was conducted to determine whether a 6-week low calorie diet and aerobic exercise intervention could alter metabolic syndrome(MetS) risk factors in pre-pubescent obese chinese ***:The subjects were randomized into diet and exercise(DE) and control(c) *** DE group ingested 1600-2000 kcal/day adjusted to each participant’s basal metabolic rate,and engaged in high-volume aerobic exercise(6 days/week,twice daily,for 3 h per session) for 6 weeks.A total of 215 obese children between the ages of 11 and 13 years were recruited into the study,with 167 subjects(DE,n=95;c,n=72) completing all ***-and post-study measures included body weight,body mass index,waist circumference,body fat percentage,blood pressure and other MetS-related markers from fasting blood samples(serum cholesterol,triglycerides,insulin,and glucose).Results:compared to controls,the DE subjects experienced significantly reduced levels for all outcome markers(p cept for fasting blood glucose in boys(p=0.09).conclusion:An intensive,6-week diet and exercise intervention had favorable effects in altering MetS risk factors in obese chinese children aged 11 to 13.

关键词： BMI children Insulin Obesity Triglycerides Waist circumference

controversies in fecal incontinence

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World Journal of Gastroenterology 2025年第3期31卷 113-119页

作者： Andreia Albuquerque Satish S c Rao School of Medicine and Biomedical Sciences Fernando Pessoa UniversityGondomar 4420-096PortoPortugal Precancerous Lesions and Early cancer Management Research Group RISE@cI-IPO(Health Research Network) Portuguese Oncology Institute of PortoPorto 4200-072Portugal Division of Gastroenterology and Hepatology Department of Internal MedicineAugusta UniversityAugustaGA 30912United States

Fecal incontinence is a common condition that can significantly impact patients’quality of *** anal sphincter injury and anorectal surgeries are common *** ultrasound and anorectal manometry are important diagnostic tools for evaluating *** are various treatment options,including diet,lifestyle modifications,drugs,biofeedback therapy,tibial and sacral nerve neuromodulation therapy,and *** this editorial,we will discuss current controversies and novel approaches to fecal *** for asymptomatic anal sphincter defects after obstetric anal sphincter injury and in patients with inflammatory bowel disease is not generally recommended,but may be helpful in selected *** Garg incontinence score is a new score that includes the assessment of solid,liquid,flatus,mucous,stress and urge fecal *** tests such as translumbosacral anorectal magnetic stimulation and novel therapies such as translumbosacral neuromodulation therapy are promising diagnostic and treatment options,for both fecal incontinence and *** biofeedback therapy can overcome some limitations of the office-based *** muscle-derived cell implantation of the external anal sphincter has been further studied as a possible treatment *** neuromodulation may be useful in scleroderma,congenital fecal incontinence and inflammatory bowel disease but merits further study.

关键词： Fecal incontinence Endoanal ultrasound Anal sphincter defects Biofeedback Neuropathy Sacral neuromodulation

Silk-based nerve guidance conduits with macroscopic holes modulate the vascularization of regenerating rat sciatic nerve

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Neural Regeneration Research 2025年第6期20卷 1789-1800页

作者： carina Hromada Patrick Heimel Markus Kerbl LászlóGál Sylvia Nürnberger Barbara Schaedl James Ferguson Nicole Swiadek Xavier Monforte Johannes c.Heinzel Antal Nógrádi Andreas H.Teuschl-Woller david Hercher Department Life Science Engineering University of Applied Sciences Technikum WienViennaAustria Austrian cluster for Tissue Regeneration ViennaAustria Ludwig Boltzmann Institute for Traumatology The Research Center in Cooperation with AUVAViennaAustria University clinic of Dentistry Medical University of ViennaViennaAustria Department of Plastic Reconstructive and Aesthetic SurgeryLandesklinikum Wiener Neustadt2700 Wiener NeustadtAustria Department of Anatomy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary Medical University of Vienna Department of Orthopedics and Trauma SurgeryDevision of Trauma SurgeryViennaAustria Department of Hand- PlasticReconstructive and Burn SurgeryBG Unfallklinik TuebingenUniversity of TuebingenTuebingenGermany

Peripheral nerve injuries induce a severe motor and sensory deficit. Since the availability of autologous nerve transplants for nerve repair is very limited, alternative treatment strategies are sought, including the use of tubular nerve guidance conduits(tNGcs). However, the use of tNGcs results in poor functional recovery and central necrosis of the regenerating tissue, which limits their application to short nerve lesion defects(typically shorter than 3 cm). Given the importance of vascularization in nerve regeneration, we hypothesized that enabling the growth of blood vessels from the surrounding tissue into the regenerating nerve within the tNGc would help eliminate necrotic processes and lead to improved regeneration. In this study, we reported the application of macroscopic holes into the tubular walls of silk-based tNGcs and compared the various features of these improved silk^(+) tNGcs with the tubes without holes(silk^(–) tNGcs) and autologous nerve transplants in an 8-mm sciatic nerve defect in rats. Using a combination of micro-computed tomography and histological analyses, we were able to prove that the use of silk^(+) tNGcs induced the growth of blood vessels from the adjacent tissue to the intraluminal neovascular formation. A significantly higher number of blood vessels in the silk^(+) group was found compared with autologous nerve transplants and silk^(–), accompanied by improved axon regeneration at the distal coaptation point compared with the silk^(–) tNGcs at 7 weeks postoperatively. In the 15-mm(critical size) sciatic nerve defect model, we again observed a distinct ingrowth of blood vessels through the tubular walls of silk^(+) tNGcs, but without improved functional recovery at 12 weeks postoperatively. Our data proves that macroporous tNGcs increase the vascular supply of regenerating nerves and facilitate improved axonal regeneration in a short-defect model but not in a critical-size defect model. This study suggests that further optimizatio

关键词： axon regeneration blood vessel functional recovery macroporous nerve lesion peripheral nerve repair sciatic nerve silk-based nerve guidance conduit vascularization