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Jones R, Robinson AT, Beach LB, Lindsey ML, Kirabo A, Hinton A, Erlandson KM, Jenkins ND. Exercise to Prevent Accelerated Vascular Aging in People Living With HIV. Circ Res 2024; 134:1607-1635. [PMID: 38781293 PMCID: PMC11126195 DOI: 10.1161/circresaha.124.323975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Given advances in antiretroviral therapy, the mortality rate for HIV infection has dropped considerably over recent decades. However, people living with HIV (PLWH) experience longer life spans coupled with persistent immune activation despite viral suppression and potential toxicity from long-term antiretroviral therapy use. Consequently, PLWH face a cardiovascular disease (CVD) risk more than twice that of the general population, making it the leading cause of death among this group. Here, we briefly review the epidemiology of CVD in PLWH highlighting disparities at the intersections of sex and gender, age, race/ethnicity, and the contributions of social determinants of health and psychosocial stress to increased CVD risk among individuals with marginalized identities. We then overview the pathophysiology of HIV and discuss the primary factors implicated as contributors to CVD risk among PLWH on antiretroviral therapy. Subsequently, we highlight the functional evidence of premature vascular dysfunction as an early pathophysiological determinant of CVD risk among PLWH, discuss several mechanisms underlying premature vascular dysfunction in PLWH, and synthesize current research on the pathophysiological mechanisms underlying accelerated vascular aging in PLWH, focusing on immune activation, chronic inflammation, and oxidative stress. We consider understudied aspects such as HIV-related changes to the gut microbiome and psychosocial stress, which may serve as mechanisms through which exercise can abrogate accelerated vascular aging. Emphasizing the significance of exercise, we review various modalities and their impacts on vascular health, proposing a holistic approach to managing CVD risks in PLWH. The discussion extends to critical future study areas related to vascular aging, CVD, and the efficacy of exercise interventions, with a call for more inclusive research that considers the diversity of the PLWH population.
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Affiliation(s)
- Raymond Jones
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | | | - Lauren B. Beach
- Department of Medical Social Sciences, Northwestern, Chicago, IL
- Department of Preventive Medicine, Northwestern, Chicago, IL
| | - Merry L. Lindsey
- School of Graduate Studies, Meharry Medical College, Nashville, TN
- Research Service, Nashville VA Medical Center, Nashville, TN
| | - Annet Kirabo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
- Vanderbilt Center for Immunobiology, Nashville, TN
- Vanderbilt Institute for Infection, Immunology and Inflammation, Nashville, TN
- Vanderbilt Institute for Global Health, Nashville, TN
| | - Antentor Hinton
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN
| | | | - Nathaniel D.M. Jenkins
- Department of Health and Human Physiology, University of Iowa, Iowa City, IA
- Abboud Cardiovascular Research Center, University of Iowa, Iowa City, IA
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA
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Brunelli DT, Bonfante ILP, Boldrini VO, Scolfaro PG, Duft RG, Mateus K, Fatori RF, Chacon-Mikahil MPT, Farias AS, Teixeira AM, Cavaglieri CR. Combined Training Improves Gene Expression Related to Immunosenescence in Obese Type 2 Diabetic Individuals. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2024:1-10. [PMID: 38319611 DOI: 10.1080/02701367.2023.2299716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 12/21/2023] [Indexed: 02/07/2024]
Abstract
Purpose: The aim of this study was to investigate the effects of moderate combined training (CT) on both the gene expression of pro- and anti-inflammatory markers and senescence in the immune system in peripheral blood mononuclear cells (PBMCs) and subcutaneous adipose tissue (SAT) of obese middle-aged individuals with type 2 diabetes (T2D). Methods: Thirty obese individuals (50.2 ± 9.4 years; body mass index: 31.8 ± 2.3 kg/m²) with T2D underwent 16 weeks of a CT group [CT; aerobic (50-60% of VO2max) plus resistance (50-75% of 1RM) training; 3 times/week, 70 min/session; n = 16)] or a control group (CG, n = 14). Nutritional patterns, muscle strength (1RM), cardiorespiratory fitness (VO2max), waist circumference (WC), body composition (Air Displacement Plethysmograph) and blood collections for biochemical (serum leptin, IL-2, IL-4, IL-6, IL-10, TNF-α and anti-CMV) and molecular (gene expression of leptin, IL-2, IL-4, IL-6, IL-10, TNF-α, PD-1, P16ink4a, CCR7, CD28 and CD27 in PBMCs and SAT) analyses were assessed before (Pre) and after (Post) the 16 weeks of the experimental period. Results: Significant decreases were observed in WC and IL4, TNF-α, PD-1 and CD27 expression in PBMCs for CT. Furthermore, significant increases were observed in 1RM and VO2max for CT after the experimental period. Conclusion: Moderate CT contributed to a reduction in the gene expression of markers associated to chronic inflammation and immunosenescence in PBMCs of obese middle-aged individuals with T2D.
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Pitcher MH, Edwards E, Langevin HM, Rusch HL, Shurtleff D. Complementary and integrative health therapies in whole person resilience research. Stress Health 2023; 39:55-61. [PMID: 37243503 DOI: 10.1002/smi.3276] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Complementary and integrative health approaches can improve health and well-being, as well as play an important role in disease prevention. The concept of whole person health builds on these concepts by empowering individuals, families, communities, and populations to improve their health in multiple interconnected domains: biological, behavioural, social, and environmental. Research on whole person health involves studies of interconnected biological systems and complex approaches to prevention and treatment. Some of these approaches may involve methods of diagnosis and therapy that differ from those used in conventional Western medicine. Of growing interest is how complementary, integrative, and whole person health approaches contribute to resilience. This brief commentary describes an integrated framework for mapping the connections between various complementary and integrative health therapeutic inputs onto aspects of resilience, including the ability to resist, recover (partially or fully), adapt, and/or grow in response to a following a stressor. The authors present selected examples of research studies supported by the National Institutes of Health that test whether complementary and integrative health approaches can promote some aspect of resilience. We conclude with a discussion of the challenges and opportunities in incorporating the study of resilience in complementary, integrative, and whole person health research.
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Affiliation(s)
- Mark H Pitcher
- National Center for Complementary and Integrative Health (NCCIH), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Emmeline Edwards
- National Center for Complementary and Integrative Health (NCCIH), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Helene M Langevin
- National Center for Complementary and Integrative Health (NCCIH), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | | | - David Shurtleff
- National Center for Complementary and Integrative Health (NCCIH), National Institutes of Health (NIH), Bethesda, Maryland, USA
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Drennan PG, Karponis D, Richards D, Coles M, Fullerton JN. In vivo human keyhole limpet hemocyanin challenge in early phase drug development: A systematic review. Clin Transl Sci 2023; 16:357-382. [PMID: 36420645 PMCID: PMC10014697 DOI: 10.1111/cts.13457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/18/2022] [Accepted: 11/02/2022] [Indexed: 11/25/2022] Open
Abstract
Experimental exposure of healthy volunteers to the T-cell dependent neoantigen keyhole limpet hemocyanin (KLH) permits the evaluation of immunomodulatory investigational medicinal product (IMP) pharmacology prior to the recruitment of patient populations. Despite widespread use, no standardized approach to the design and conduct of such studies has been agreed. The objective of this systematic review was to survey the published literature where KLH was used as a challenge agent, describing methodology, therapeutic targets addressed, and pharmacodynamic outcome measures. We searched MEDLINE, EMBASE, clinicaltrials.gov, and Cochrane CENTRAL for studies using KLH challenge in humans between January 1, 1994, and April 1, 2022. We described key study features, including KLH formulation, dose, use of adjuvants, route of administration, co-administered IMPs, and end points. Of 2421 titles and abstracts screened, 46 met the inclusion criteria, including 14 (31%) early phase trials of IMP, of which 10 (71%) targeted T-cell co-stimulation. IMPs with diverse mechanisms demonstrated modulation of the humoral response to KLH, suggesting limited specificity of this end point. Two early phase IMP studies (14%) described the response to intradermal re-challenge (delayed type hypersensitivity). Challenge regimens for IMP assessment were often incompletely described, and exhibited marked heterogeneity, including primary KLH dose (25-fold variation: 100-2500 mcg), KLH formulation, and co-administration with adjuvants. Methodological heterogeneity and failure to exploit the access to tissue-level mechanism-relevant end points afforded by KLH challenge has impaired the translational utility of this paradigm to date. Future standardization, characterization, and methodological development is required to permit tailored, appropriately powered, mechanism-dependent study design to optimize drug development decisions.
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Affiliation(s)
- Philip G Drennan
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Medicine, University of Oxford, Oxford, UK.,Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | | | - Duncan Richards
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Medicine, University of Oxford, Oxford, UK
| | - Mark Coles
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Medicine, University of Oxford, Oxford, UK
| | - James N Fullerton
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Medicine, University of Oxford, Oxford, UK
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Saghari M, Gal P, Grievink HW, Klaassen ES, Itano A, McHale D, Moerland M. Impact of oral administration of single strain Lactococcus lactis spp. cremoris on immune responses to keyhole limpet hemocyanin immunization and gut microbiota: A randomized placebo-controlled trial in healthy volunteers. Front Immunol 2022; 13:1009304. [PMID: 36582231 PMCID: PMC9793106 DOI: 10.3389/fimmu.2022.1009304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction Lactococcus lactis spp. cremoris has been associated with promising immunomodulatory results in preclinical trials. The aim of this study was to investigate the pharmacodynamic (PD) effects of three monoclonal microbial formulations of L. lactis spp. cremoris (EDP1066) on the immune response to keyhole limpet hemocyanin (KLH). Potential effects on the gut microbiota were also investigated. Methods The trial was registered on Netherlands Trial Register (trial ID NL7519, https://trialsearch.who.int). Eighty-one healthy subjects (median 28, range 18-59 years) were randomized to 28 days of enteric-coated capsules at five doses (n = 13) (1.5 * 1012 total cells daily), freeze-dried powder at one dose (n = 12) (3.0 * 1011 total cells daily) or five doses (n = 12), minitablets at one dose (n = 12) or five doses (n = 12), or placebo (n = 20) prior to KLH immunization. Antibody responses and circulating regulatory T cells (Tregs) were measured after KLH immunization, and skin responses were evaluated after a KLH rechallenge by laser speckle contrast imaging and multispectral imaging. Ex vivo lymphocyte (phytohemagglutinin) and monocyte (lipopolysaccharide (LPS)) cytokine release assays were explored in the minitablet-treated groups only. The prevalence of L. lactis spp. cremoris in the gastrointestinal tract and the impact on the fecal microbiota were assessed by qPCR and 16S rRNA sequencing, respectively. Results Repeated-measures analysis of covariances revealed no significant treatment effects on the antibody responses to KLH, number of Tregs, or KLH skin rechallenge outcomes. Ex vivo LPS-driven cytokine responses in whole blood were lower in the low dose minitablet group compared to placebo: tumor necrosis factor (estimated difference (ED) from placebo: -44.2%, 95% confidence interval (CI) -65.3% to -10.3%), interleukin (IL)-1β (ED -41.4%, 95% CI -63.5% to -5.8%), and IL-6 (ED -39.2%, 95% CI -56.8% to -14.5%). The fecal presence of L. lactis spp. cremoris increased during treatment by all EDP1066 formulations and normalized 5 days after the last dose. Microbiome α-diversity did not change by the treatments compared to placebo. Discussion The EDP1066 formulations did not affect the immune response to KLH immunization in healthy individuals. However, exposure to L. lactis spp. cremoris in minitablet formulation impacted ex vivo whole blood LPS cytokine response. The clinical impact of these effects awaits further investigations. Netherlands Trial Register trialsearch.who.int, trial ID NL7519.
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Affiliation(s)
- Mahdi Saghari
- Centre for Human Drug Research (CHDR), Leiden, Netherlands
- Leiden University Medical Centre (LUMC), Leiden, Netherlands
| | - Pim Gal
- Centre for Human Drug Research (CHDR), Leiden, Netherlands
- Leiden University Medical Centre (LUMC), Leiden, Netherlands
| | - Hendrika W. Grievink
- Centre for Human Drug Research (CHDR), Leiden, Netherlands
- Leiden Academic Centre for Drug Research (LACDR), Leiden, Netherlands
| | | | - Andrea Itano
- Evelo Biosciences Inc., Cambridge, MA, United States
| | - Duncan McHale
- Evelo Biosciences Inc., Cambridge, MA, United States
| | - Matthijs Moerland
- Centre for Human Drug Research (CHDR), Leiden, Netherlands
- Leiden University Medical Centre (LUMC), Leiden, Netherlands
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Gualano B, Lemes ÍR, da Silva RP, Pinto AJ, Mazzolani BC, Smaira FI, Sieczkowska SM, Aikawa NE, Pasoto S, Medeiros-Ribeiro AC, Saad C, Yuk E, Silva C, Swinton P, Hallal PC, Roschel H, Bonfa E. Physical activity and antibody persistence 6 months after the second dose of CoronaVac in immunocompromised patients. Scand J Med Sci Sports 2022; 32:1510-1515. [PMID: 35844042 DOI: 10.1111/sms.14213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 12/17/2022]
Abstract
This prospective cohort study within an open-label, single-arm, phase 4 vaccination trial (clinicaltrials.gov #NCT04754698) aimed to investigate the association between physical activity and persistent anti-SARS-CoV-2 antibodies 6 months after two-dose schedule of CoronaVac in autoimmune rheumatic diseases (ARD) patients (n = 748). Persistent immunogenicity 6 months after the full-course vaccination was assessed using seroconversion rates of total anti-SARS-CoV-2 S1/S2 IgG, geometric mean titers of anti-S1/S2 IgG (GMT), and frequency of positive neutralizing antibodies (NAb). Physical activity was assessed trough questionnaire. Adjusted point estimates from logistic regression models indicated that physically active patients had greater odds of seroconversion rates (OR: 1.5 [95%CI: 1.1 to 2.1]) and NAb positivity (OR: 1.5 [95%CI: 1.0 to 2.1]), and approximately 43% greater GMT (42.8% [95%CI: 11.9 to 82.2]) than inactive ones. In conclusion, among immunocompromised patients, being physically active was associated with an increment in antibody persistence through 6 months after a full-course of an inactivated SARS-CoV-2 vaccine.
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Affiliation(s)
- Bruno Gualano
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil.,Food Research Center, University of São Paulo, São Paulo, Brazil
| | - Ítalo Ribeiro Lemes
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil
| | - Rafael Pires da Silva
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil
| | - Ana Jéssica Pinto
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil.,Division of Endocrinology, Metabolism, and Diabetes and Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Bruna Caruso Mazzolani
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil
| | - Fabiana Infante Smaira
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil
| | | | - Nádia Emi Aikawa
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Sandra Pasoto
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Ana Cristina Medeiros-Ribeiro
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Carla Saad
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Emily Yuk
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Clovis Silva
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil.,Pediatric Rheumatology Unit, Instituto da Criança e do Adolescente, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | - Pedro Curi Hallal
- Postgraduate Program in Epidemiology, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Hamilton Roschel
- Applied Physiology & Nutrition Research Group, University of São Paulo, São Paulo, Brazil
| | - Eloisa Bonfa
- Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
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7
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Gualano B, Lemes IR, Silva RP, Pinto AJ, Mazzolani BC, Smaira FI, Sieczkowska SM, Aikawa NE, Pasoto SG, Medeiros-Ribeiro AC, Saad CG, Yuki EF, Silva CA, Swinton P, Hallal PC, Roschel H, Bonfa E. Association between physical activity and immunogenicity of an inactivated virus vaccine against SARS-CoV-2 in patients with autoimmune rheumatic diseases. Brain Behav Immun 2022; 101:49-56. [PMID: 34954325 PMCID: PMC8697420 DOI: 10.1016/j.bbi.2021.12.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/10/2021] [Accepted: 12/18/2021] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES To investigate whether physical activity is associated with enhanced immunogenicity of a SARS-CoV-2 inactivated vaccine (Coronavac) in patients with autoimmune rheumatic diseases (ARD) (n = 898) and in non-ARD (n = 197) individuals without pre-existing immunogenicity to SARS-CoV-2. METHODS This was a prospective cohort study within an open-label, single-arm, phase 4 vaccination trial. Immunogenicity was assessed after vaccination by measuring seroconversion rates of total anti-SARS-CoV-2 S1/S2 IgG (SC), geometric mean titers of anti-S1/S2 IgG (GMT), factor-increase in GMT (FI-GMT), frequency of neutralizing antibody (NAb), and median neutralizing activity. Physical activity (active being defined as ≥ 150 min/week) and sedentary behavior (>8h/day) were assessed by questionnaire. RESULTS Physically active ARD patients (n = 494) were younger and less frequently used prednisone/biologics than inactive patients (n = 404). After controlling for covariates, active patients exhibited greater SC (OR: 1.4 [95%CI: 1.1-2.0]), GMT (32% [95%CI: 8.8-60) and FI-GMT (33% [95%CI: 9.6-63%]) vs. inactive. Cluster analysis (physical activity/sedentary status) revealed greater GMT (43.0% [95% CI: 11.0-84.0%) and FI-GMT (48.0% [95%CI: 14.0-92.0%]) in active/non-sedentary vs. inactive/sedentary ARD patients. A dose-response was observed, with greater benefits for the group of patients performing ≥ 350 min/week of physical activity (OR: 1.6 [95%CI: 1.1-2.4]; 41% [95%CI: 10-80%]; 35% [95%CI: 4.3-74], for SC, GMT, and FI-GMT, respectively) vs. the least active group (≤30 min/week). Greater SC (OR: 9.9 [95%CI: 1.1-89.0]) and GMT (26% [95%CI: 2.2-56.0%]) were observed in active vs. inactive non-ARD. CONCLUSIONS A physically active lifestyle may enhance SARS-CoV-2 vaccine immunogenicity, a finding of particular clinical relevance for immunocompromised patients. TRIAL REGISTRATION Clinicaltrials.gov #NCT04754698.
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Affiliation(s)
- Bruno Gualano
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil; Food Research Center, University of São Paulo, Sao Paulo, Brazil.
| | - Italo R. Lemes
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil
| | - Rafael P. Silva
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil
| | - Ana J. Pinto
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil,Division of Endocrinology, Metabolism, and Diabetes and Anschutz Health and Wellness Center, University of Colorado, School of Medicine, Aurora, CO, USA
| | - Bruna C. Mazzolani
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil
| | - Fabiana I. Smaira
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil
| | - Sofia M. Sieczkowska
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil
| | - Nadia E. Aikawa
- Pediatric Rheumatology Unit, Instituto da Criança, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Sandra G. Pasoto
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Ana C. Medeiros-Ribeiro
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Carla G.S. Saad
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Emily F.N. Yuki
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Clovis A. Silva
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil,Pediatric Rheumatology Unit, Instituto da Criança, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Paul Swinton
- Robert Gordon University, Garthdee Road, Aberdeen, UK
| | - Pedro C. Hallal
- Postgraduate Program in Epidemiology, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Hamilton Roschel
- Applied Physiology & Nutrition Research Group, University of São Paulo, Sao Paulo, Brazil
| | - Eloisa Bonfa
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
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Detraining Effects of COVID-19 Pandemic on Physical Fitness, Cytokines, C-Reactive Protein and Immunocytes in Men of Various Age Groups. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031845. [PMID: 35162870 PMCID: PMC8835692 DOI: 10.3390/ijerph19031845] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/20/2022] [Accepted: 02/04/2022] [Indexed: 02/04/2023]
Abstract
Background and Objectives: Since the start of the COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus II, levels of physical inactivity have become more severe and widespread than ever before. Physical inactivity is known to have a negative effect on the human body, but the extent to which reduced physical fitness has effected immune function before and after the current pandemic has not yet been uncovered. The aim of this study was to investigate the detraining effects of the COVID-19 confinement period on physical fitness, immunocytes, inflammatory cytokines, and proteins in various age groups. The participants of this study included sixty-four male adults who did not exercise during the pandemic, although they had exercised regularly before. Materials and Methods: Participants were classified by age group, which included the 20s group (20s’G, n = 14), 30s group (30s’G, n = 12), 40s group (40s’G, n = 12), 50s group (50s’G, n = 12), and 60s group (60s’G, n = 14). Results: Regarding body composition, muscle mass significantly decreased, whereas fat mass, fat percentage, and waist/hip ratio significantly increased in most groups. Cardiopulmonary endurance and strength significantly decreased in all groups, while muscle endurance and flexibility decreased in some groups compared to the pre-COVID-19 pandemic. This study confirmed the immunocytopenia and enhanced inflammation due to physical inactivity during the COVID-19 pandemic, and a greater detrimental decrease mainly after the age of 50. Conclusion: This study confirmed a decrease in physical fitness after the start of the COVID-19 pandemic, characterized by an increase in fat mass and a decrease in muscle mass, thereby increasing cytokines and reducing immunocytes in the body. While social distancing is important during the pandemic, maintaining physical fitness should also be a top priority.
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9
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Saghari M, Gal P, Ziagkos D, Burggraaf J, Powell JF, Brennan N, Rissmann R, van Doorn MBA, Moerland M. A randomized controlled trial with a delayed-type hypersensitivity model using keyhole limpet haemocyanin to evaluate adaptive immune responses in man. Br J Clin Pharmacol 2020; 87:1953-1962. [PMID: 33025648 PMCID: PMC8056735 DOI: 10.1111/bcp.14588] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 01/12/2023] Open
Abstract
AIMS Keyhole limpet haemocyanin (KLH) immunization is a clinical model for the evaluation of human antibody responses. The current study evaluated the anti-KLH antibody response after KLH immunization and the delayed-type hypersensitivity response following intradermal KLH administration, using objective imaging techniques. METHODS Healthy male subjects aged 24.5 ± 5.4 years were randomized to intramuscular immunization with 100 μg KLH (n = 12) or placebo (n = 3). Anti-KLH antibody (Ig) M and IgG titres were determined before and every 7 days after KLH immunization for a total of 28 days. Twenty-one days after the immunization, all subjects received 1 μg KLH intradermally. Prior to and 2 days after intradermal KLH administration, skin blood perfusion, erythema and oedema were quantified using noninvasive imaging tools. Repeated measures ANCOVAs were used to analyse data. RESULTS Anti-KLH IgM and IgG titres increased after KLH immunization compared to placebo (estimated difference [ED]: 37%, 95% confidence interval [CI]: 19-51% and ED: 68%, 95% CI: 56-76% respectively). Upon intradermal KLH administration an increase in skin blood perfusion (ED: 10.9 arbitrary units (AU), 95% CI: 1.4-20.4 AU) and erythema (ED: 0.3 AU, 95% CI: 0.1-0.5 AU) was observed in KLH-immunized subjects compared to placebo. CONCLUSION KLH immunization followed by intradermal KLH administration resulted in increased anti-KLH IgM and IgG titres and a delayed-type hypersensitivity response quantified by an increase in skin blood perfusion and erythema. Using noninvasive imaging tools the KLH model has the potential to serve as an objective tool to study the pharmacodynamics of T-cell-directed immunomodulatory drugs.
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Affiliation(s)
- Mahdi Saghari
- Centre for Human Drug Research, Leiden, the Netherlands.,Leiden University Medical Centre, Leiden, the Netherlands
| | - Pim Gal
- Centre for Human Drug Research, Leiden, the Netherlands.,Leiden University Medical Centre, Leiden, the Netherlands
| | | | - Jacobus Burggraaf
- Centre for Human Drug Research, Leiden, the Netherlands.,Leiden University Medical Centre, Leiden, the Netherlands.,Leiden Academic Centre for Drug Research, Leiden, the Netherlands
| | | | | | - Robert Rissmann
- Centre for Human Drug Research, Leiden, the Netherlands.,Leiden University Medical Centre, Leiden, the Netherlands.,Leiden Academic Centre for Drug Research, Leiden, the Netherlands
| | | | - Matthijs Moerland
- Centre for Human Drug Research, Leiden, the Netherlands.,Leiden University Medical Centre, Leiden, the Netherlands
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10
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Jee YS. Influences of acute and/or chronic exercise on human immunity: third series of scientific evidence. J Exerc Rehabil 2020; 16:205-206. [PMID: 32724776 PMCID: PMC7365731 DOI: 10.12965/jer.2040414.207] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Yong-Seok Jee
- Research Institute of Sports and Industry Science, Hanseo University, 46 Hanseo 1-ro, Haemimyeon, Seosan 31962, Korea, E-mail:
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11
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Castro RRTD, Silveira JGD, Castro RRTD. Exercise Training: A Hero that Can Fight two Pandemics at Once. INTERNATIONAL JOURNAL OF CARDIOVASCULAR SCIENCES 2020. [DOI: 10.36660/ijcs.20200083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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12
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Kohut M. Exercise and psychoneuroimmunology. Curr Opin Behav Sci 2019. [DOI: 10.1016/j.cobeha.2019.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Sun YI, Pence BD, Wang SS, Woods JA. Effects of Exercise on Stress-induced Attenuation of Vaccination Responses in Mice. Med Sci Sports Exerc 2019; 51:1635-1641. [PMID: 30829964 DOI: 10.1249/mss.0000000000001971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Studies suggest that exercise can improve vaccination responses in humans. Chronic stress can lead to immunosuppression, and there may be a role for exercise in augmenting immune responses. PURPOSE To investigate the effects of acute eccentric exercise (ECC) and voluntary wheel exercise training (VWR) on antibody and cell-mediated immune responses to vaccination in chronically stressed mice. We hypothesized that both ECC and VWR would attenuate chronic stress-induced reductions in vaccination responses. METHODS Mice were randomized into four groups: control (CON), stress (S)-ECC, S-VWR, and S-sedentary (SED). Stressed groups received chronic restraint stress for 6 h·d, 5 d·wk for 3 wk. After the first week of stress, S-ECC were exercised at 17 m·min speed at -20% grade for 45 min on a treadmill and then intramuscularly injected with 100 μg of ovalbumin (OVA) and 200 μg of alum adjuvant. All other groups were also vaccinated at this time. Stress-VWR mice voluntarily ran on a wheel for the entire experiment. Plasma was collected before, and at 1, 2, and 4 wk postvaccination. Enzyme-linked immunosorbent assay was performed to analyze anti-OVA IgG and IgM antibodies. After 3 wk of chronic stress, all mice were injected with OVA into the ear to determine the delayed-type hypersensitivity. RESULTS We found that chronic restraint stress significantly reduced body weight and caused adrenal hypertrophy. We also found both S-ECC and S-VWR groups had significantly elevated anti-OVA IgG (P < 0.05), whereas no significant differences between the two exercise groups. Neither S-ECC nor S-VWR altered anti-OVA IgM or delayed-type hypersensitivity responses compared with S-SED group. CONCLUSIONS Acute eccentric exercise and voluntary exercise training alleviated the chronic stress-induced anti-OVA IgG reductions in vaccination responses.
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Affiliation(s)
- Y I Sun
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL.,Integrative Immunology and Behavior Program, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Brandt D Pence
- School of Health Studies, University of Memphis, Memphis, TN
| | - Selena Shiyue Wang
- Interdisciplinary Health Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Jeffrey A Woods
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL.,Integrative Immunology and Behavior Program, University of Illinois at Urbana-Champaign, Urbana, IL.,Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL.,Carle-Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL
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14
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Swaminathan A, Harrison SL, Ketheesan N, van den Boogaard CHA, Dear K, Allen M, Hart PH, Cook M, Lucas RM. Exposure to Solar UVR Suppresses Cell-Mediated Immunization Responses in Humans: The Australian Ultraviolet Radiation and Immunity Study. J Invest Dermatol 2019; 139:1545-1553.e6. [PMID: 30684553 DOI: 10.1016/j.jid.2018.12.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/28/2018] [Accepted: 12/31/2018] [Indexed: 01/27/2023]
Abstract
Animal and human studies show that exposure to solar-simulated UVR is immunomodulatory. Human studies that used natural sun exposure and controlled for confounding are rare. We immunized 217 healthy adults (age range = 18-40 years) with a T-cell-dependent antigen, keyhole limpet hemocyanin, and measured personal clothing-adjusted UVR exposure (for 5 days before and after immunization), lifetime cumulative UVR exposure, serum 25-hydroxyvitamin D concentration at immunization, and potential confounding factors. We tested cellular and humoral immune responses in relation to UVR exposure. The delayed-type hypersensitivity response to keyhole limpet hemocyanin recall challenge was lower in individuals with higher personal clothing-adjusted UVR exposure on the day before immunization (P = 0.015) and during intervals spanning the day before to 2-3 days after immunization. There was an incremental increase in T helper type 17 cells (as a proportion of CD4+ T cells) from preimmunization to postimmunization in the high, compared with the low, personal clothing-adjusted UVR exposure group (0.31% vs. -0.39%, P = 0.004). Keyhole limpet hemocyanin-specific antibody titers were not associated with acute or cumulative UVR exposure or serum 25-hydroxyvitamin D levels. Higher UVR exposure at antigen sensitization was associated with a reduced delayed-type hypersensitivity response and altered T helper type 17 kinetics. This has implications for the effectiveness of vaccinations and susceptibility to infections that rely on cell-mediated immune responses.
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Affiliation(s)
- Ashwin Swaminathan
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, Australia; Departments of General Medicine and Infectious Diseases, The Canberra Hospital, Canberra, Australia
| | - Simone L Harrison
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Natkunam Ketheesan
- Science and Technology, University of New England, School of Science and Technology, University of New England, Armidale, New South Wales, Australia
| | - Christel H A van den Boogaard
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; University of Adelaide, Adelaide, South Australia, Australia
| | - Keith Dear
- Global and Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Martin Allen
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand
| | - Prue H Hart
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Matthew Cook
- Department of Immunology, The Canberra Hospital, Canberra, Australia; Centre for Personalized Immunology, John Curtin School of Medical Research, Australian National University, Canberra, Australia
| | - Robyn M Lucas
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, Australia; Centre for Ophthalmology and Visual Science, University of Western Australia, Perth, Australia.
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15
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Jones AW, Davison G. Exercise, Immunity, and Illness. MUSCLE AND EXERCISE PHYSIOLOGY 2019. [PMCID: PMC7149380 DOI: 10.1016/b978-0-12-814593-7.00015-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
It is generally accepted that moderate amounts of exercise improve immune system functions and hence reduce the risk of infection whereas athletes engaged in regular prolonged and/or intensive training have a higher than “normal” incidence of minor infections, especially of the upper respiratory tract (URT, e.g., common cold and influenza). This is likely related to regular acute (and possibly chronic) periods of exercise-induced changes in immune function. URT infections can compromise performance directly if suffered shortly before or during competition or indirectly if suffered at other times via effects on training and/or physiological adaptations. This chapter covers the effects of exercise (acute and chronic), both positive and negative, on immune function and consequent infection risk, and considers the current state-of-the-art for monitoring and assessing this in athletes.
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16
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Campbell JP, Turner JE. Debunking the Myth of Exercise-Induced Immune Suppression: Redefining the Impact of Exercise on Immunological Health Across the Lifespan. Front Immunol 2018; 9:648. [PMID: 29713319 PMCID: PMC5911985 DOI: 10.3389/fimmu.2018.00648] [Citation(s) in RCA: 350] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 03/15/2018] [Indexed: 12/17/2022] Open
Abstract
Epidemiological evidence indicates that regular physical activity and/or frequent structured exercise reduces the incidence of many chronic diseases in older age, including communicable diseases such as viral and bacterial infections, as well as non-communicable diseases such as cancer and chronic inflammatory disorders. Despite the apparent health benefits achieved by leading an active lifestyle, which imply that regular physical activity and frequent exercise enhance immune competency and regulation, the effect of a single bout of exercise on immune function remains a controversial topic. Indeed, to this day, it is perceived by many that a vigorous bout of exercise can temporarily suppress immune function. In the first part of this review, we deconstruct the key pillars which lay the foundation to this theory-referred to as the "open window" hypothesis-and highlight that: (i) limited reliable evidence exists to support the claim that vigorous exercise heightens risk of opportunistic infections; (ii) purported changes to mucosal immunity, namely salivary IgA levels, after exercise do not signpost a period of immune suppression; and (iii) the dramatic reductions to lymphocyte numbers and function 1-2 h after exercise reflects a transient and time-dependent redistribution of immune cells to peripheral tissues, resulting in a heightened state of immune surveillance and immune regulation, as opposed to immune suppression. In the second part of this review, we provide evidence that frequent exercise enhances-rather than suppresses-immune competency, and highlight key findings from human vaccination studies which show heightened responses to bacterial and viral antigens following bouts of exercise. Finally, in the third part of this review, we highlight that regular physical activity and frequent exercise might limit or delay aging of the immune system, providing further evidence that exercise is beneficial for immunological health. In summary, the over-arching aim of this review is to rebalance opinion over the perceived relationships between exercise and immune function. We emphasize that it is a misconception to label any form of acute exercise as immunosuppressive, and, instead, exercise most likely improves immune competency across the lifespan.
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Affiliation(s)
- John P Campbell
- Department for Health, University of Bath, Bath, United Kingdom
| | - James E Turner
- Department for Health, University of Bath, Bath, United Kingdom
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17
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Cao Dinh H, Beyer I, Mets T, Onyema OO, Njemini R, Renmans W, De Waele M, Jochmans K, Vander Meeren S, Bautmans I. Effects of Physical Exercise on Markers of Cellular Immunosenescence: A Systematic Review. Calcif Tissue Int 2017; 100:193-215. [PMID: 27866236 DOI: 10.1007/s00223-016-0212-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 11/07/2016] [Indexed: 12/31/2022]
Abstract
Aging affects negatively the immune system, defined as immunosenescence, which increases the susceptibility of elderly persons to infection, autoimmune disease, and cancer. There are strong indications that physical exercise in elderly persons may prevent the age-related decline in immune response without significant side effects. Consequently, exercise is being considered as a safe mode of intervention to reduce immunosenescence. The aim of this review was to appraise the existing evidence regarding the impact of exercise on surface markers of cellular immunosenescence in either young and old humans or animals. PubMed and Web of Science were systematically screened, and 28 relevant articles in humans or animals were retrieved. Most of the intervention studies demonstrated that an acute bout of exercise induced increases in senescent, naïve, memory CD4+ and CD8+ T-lymphocytes and significantly elevated apoptotic lymphocytes in peripheral blood. As regards long-term effects, exercise induced increased levels of T-lymphocytes expressing CD28+ in both young and elderly subjects. Few studies found an increase in natural killer cell activity following a period of training. We can conclude that exercise has considerable effects on markers of cellular aspects of the immune system. However, very few studies have been conducted so far to investigate the effects of exercise on markers of cellular immunosenescence in elderly persons. Implications for immunosenescence need further investigation.
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Affiliation(s)
- H Cao Dinh
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
| | - I Beyer
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Geriatrics Department, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - T Mets
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Geriatrics Department, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - O O Onyema
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
| | - R Njemini
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
| | - W Renmans
- Laboratory of Hematology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - M De Waele
- Laboratory of Hematology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - K Jochmans
- Laboratory of Hematology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - S Vander Meeren
- Laboratory of Hematology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - I Bautmans
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium.
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium.
- Geriatrics Department, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium.
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18
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de Araújo AL, Silva LCR, Fernandes JR, Matias MDST, Boas LS, Machado CM, Garcez-Leme LE, Benard G. Elderly men with moderate and intense training lifestyle present sustained higher antibody responses to influenza vaccine. AGE (DORDRECHT, NETHERLANDS) 2015; 37:105. [PMID: 26480853 PMCID: PMC5005841 DOI: 10.1007/s11357-015-9843-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 10/07/2015] [Indexed: 05/05/2023]
Abstract
We aimed to verify whether different levels of training performed regularly and voluntarily for many years could have an impact on one of the main issues of immunosenescence: the poor response to vaccines. We recruited 61 healthy elderly men (65-85 years old), 23 with a moderate training (MT) lifestyle (for 17.0 ± 3.2 years), 22 with an intense training (IT) lifestyle (for 25.9 ± 3.4 years), and 16 without a training lifestyle (NT). Fitness was evaluated through the IPAQ and VO2max consumption. The participants were evaluated regarding cognitive aspects, nutritional status, depression, and quality of life. Antibody titers were determined by hemagglutination inhibition assay prior to influenza vaccination and at 6 weeks and 6 months post-vaccination. Strains used were B, H3N2, and H1N1. Our groups were matched for most characteristics, except for those directly influenced by their lifestyles, such as BMI, VO2max, and MET. In general, MT and IT elderly men showed significantly higher antibody titers to the three vaccine strains post-vaccination than NT elderly men. There were also higher titers against B and H1N1 strains in the trained groups before vaccination. Additionally, there were higher proportions of seroprotected (titers ≥1:40) individuals in the pooled trained groups both at 6 weeks (B and H3N2, p < 0.05) and 6 months (H1N1, p < 0.05; B, p = 0.07). There were no significant differences between the MT and IT groups. Either a moderate or an intense training is associated with stronger and longstanding antibody responses to the influenza vaccine, resulting in higher percentages of seroprotected individuals.
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Affiliation(s)
- Adriana Ladeira de Araújo
- Laboratory of Dermatology and Immunodeficiencies, Dermatology Division, Clinics Hospital, R. Dr. Eneas de Carvalho Aguiar, 470, Cerqueira Cesar, São Paulo, 05403-903, São Paulo, Brazil
| | - Léia Cristina Rodrigues Silva
- Laboratory of Dermatology and Immunodeficiencies, Dermatology Division, Clinics Hospital, R. Dr. Eneas de Carvalho Aguiar, 470, Cerqueira Cesar, São Paulo, 05403-903, São Paulo, Brazil
| | - Juliana Ruiz Fernandes
- Laboratory of Dermatology and Immunodeficiencies, Dermatology Division, Clinics Hospital, R. Dr. Eneas de Carvalho Aguiar, 470, Cerqueira Cesar, São Paulo, 05403-903, São Paulo, Brazil
| | | | - Lucy Santos Boas
- Virology Laboratory, Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil
| | | | | | - Gil Benard
- Laboratory of Dermatology and Immunodeficiencies, Dermatology Division, Clinics Hospital, R. Dr. Eneas de Carvalho Aguiar, 470, Cerqueira Cesar, São Paulo, 05403-903, São Paulo, Brazil.
- Medical Mycology Laboratory, Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil.
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19
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Suzuki K. Effects of exercise on antibody production. World J Immunol 2015; 5:160-166. [DOI: 10.5411/wji.v5.i3.160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/18/2015] [Accepted: 09/16/2015] [Indexed: 02/05/2023] Open
Abstract
In this review, we have focused on the effects of exercise on infection or antibody production. In the past, exercise immunologists largely focused on exercise and its effects on infection. Research on the effects of exercise on antibody response began in the 1970s with a primary focus on whether regular exercise helps to minimize the risk of infection. Positive results from these early studies indicated that exercise affects higher survival rate. Based on the results of these studies, researchers then investigated the exercise-induced elevation of plasma antibody levels. It has been suggested that exercise of moderate intensity could be a helpful and effective adjuvant for human health. Other studies have examined the effects of exercise on antibody-producing cells, and the levels of protection conferred by the produced antibodies. We have attempted to summarize the current understanding of exercise-induced elevations in plasma antibody levels. We also propose some future directions for investigating the relationship between exercise and antibody response.
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20
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Swaminathan A, Lucas RM, Dear K, McMichael AJ. Keyhole limpet haemocyanin - a model antigen for human immunotoxicological studies. Br J Clin Pharmacol 2015; 78:1135-42. [PMID: 24833186 DOI: 10.1111/bcp.12422] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 05/08/2014] [Indexed: 12/14/2022] Open
Abstract
Immunization with a T-cell dependent antigen has been promoted as a reliable and sensitive tool for assessing the influence of putative immunotoxic exposures or agents on immune function. Keyhole limpet haemocyanin (KLH) is a very large, copper-containing protein molecule derived from the haemolymph of the inedible mollusc, Megathura crenulata. KLH is a highly immunogenic T-cell dependent antigen that is used increasingly in immunotoxicological studies, particularly in those involving animals. This report systematically reviews the human clinical studies that have used trans-cutaneous KLH immunization for assessment of the influence of various physiological and disease states and exposures on immune function over the last 20 years (1994-2013). These studies varied in their immunization protocols, formulation of KLH, dose, site and route of administration and immunoassay platforms developed to assess KLH-specific responses. KLH immunization has been well tolerated with only mild to moderate adverse effects reported. Though very promising as a model antigen candidate in immunotoxicology research, more work on standardizing immunization and immunoassay protocols is required.
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Affiliation(s)
- Ashwin Swaminathan
- National Centre for Epidemiology and Population Health, Australian National University, Canberra, Australia; Infectious Diseases and General Medicine Units, Canberra Hospital, Canberra, Australia
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21
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Davison G, Kehaya C, Wyn Jones A. Nutritional and Physical Activity Interventions to Improve Immunity. Am J Lifestyle Med 2014; 10:152-169. [PMID: 30202268 DOI: 10.1177/1559827614557773] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 12/17/2022] Open
Abstract
Physical activity and nutrition are important in a healthy lifestyle with potential benefits to immunity often overlooked. Infection of the upper respiratory tract, and the associated symptoms, are the most frequent presentations to general practitioners and may have significant economic and social impact. In this review, we consider the role of physical activity and nutrition in improving immunity. Evidence suggests that regular moderate activity is particularly beneficial for immune enhancement and reducing the risk of infection. We also discuss some nutritional strategies. Unfortunately, the evidence for many is weak. Avoiding nutritional deficiencies seems the most pragmatic recommendation. This can be achieved with a balanced diet. Including a variety of fruits and vegetables may help ensure adequate intake of essential nutrients with little risk of excess intake of any single nutrient. Supplementation with individual nutrients is generally not recommended. Multinutrients may be beneficial for those with a preexisting deficiency but not if normal dietary intake is sufficient. Further benefit may be gained from some supplements including probiotics, bovine colostrum, and some plant-derived products (Echinacea, black elderberry, and some polyphenols) but only in specific situations/contexts. Individuals should consider their personal needs, use caution, and avoid the indiscriminate use of supplements.
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Affiliation(s)
- Glen Davison
- School of Sport and Exercise Sciences, University of Kent, Kent, UK (GD, CK).,The Department of Sport and Exercise Science, Aberystwyth University, Aberystwyth, UK (AWJ).,The Clinical Research Centre, Prince Phillip Hospital, Llanelli, UK (AWJ)
| | - Corinna Kehaya
- School of Sport and Exercise Sciences, University of Kent, Kent, UK (GD, CK).,The Department of Sport and Exercise Science, Aberystwyth University, Aberystwyth, UK (AWJ).,The Clinical Research Centre, Prince Phillip Hospital, Llanelli, UK (AWJ)
| | - Arwel Wyn Jones
- School of Sport and Exercise Sciences, University of Kent, Kent, UK (GD, CK).,The Department of Sport and Exercise Science, Aberystwyth University, Aberystwyth, UK (AWJ).,The Clinical Research Centre, Prince Phillip Hospital, Llanelli, UK (AWJ)
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22
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Williams PT. Reduced total and cause-specific mortality from walking and running in diabetes. Med Sci Sports Exerc 2014; 46:933-9. [PMID: 24968127 DOI: 10.1249/mss.0000000000000197] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE This study aimed to assess the relationships of running and walking to mortality in diabetic subjects. METHODS We studied the mortality surveillance between January 1, 1989 and December 31, 2008, of 2160 participants of the National Walkers' and Runners' Health Studies who reported using diabetic medications at baseline. Hazard ratios (HR) and 95% confidence intervals (95% CI) were obtained from Cox proportional hazard analyses for mortality versus exercise energy expenditure (MET-hours per day, 1 MET·h ∼1-km run or a 1.5-km brisk walk). RESULTS Three hundred and thirty-one diabetic individuals died during a 9.8-yr average follow-up. Merely meeting the current exercise recommendations was not associated with lower all-cause mortality (P = 0.61), whereas exceeding the recommendations was associated with lower all-cause mortality (HR = 0.64, 95% CI = 0.49-0.82, P = 0.0005). Greater MET-hours per day ran or walked was associated with 40% lower risk for all chronic kidney disease-related deaths (HR = 0.60 per MET·h·d(-1), 95% CI = 0.35-0.91, P = 0.02), 31% lower risk for all sepsis-related deaths (HR = 0.69, 0.47-0.94, P = 0.01), and 31% lower risk for all pneumonia and influenza-related deaths (HR = 0.69, 95% CI = 0.45-0.97, P = 0.03). Running or walking ≥1.8 MET·h·d(-1) was associated with 57% reduction in cardiovascular disease (CVD) as an underlying cause of death and 46% lower risk for all CVD-related deaths versus <1.07 MET·h·d. All results remained significant: 1) adjusted for baseline BMI and 2) excluding all deaths within 3 yr of baseline. CONCLUSIONS These results suggest that 1) exercise is associated with significantly lower all-cause, CVD, chronic kidney disease, sepsis, and pneumonia, and influenza mortality in diabetic patients and 2) higher exercise standards may be warranted for diabetic patients than currently provided to the general population.
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Abstract
Humans and their predecessors evolved in environments where they were challenged intermittently with: 1) food scarcity; 2) the need for aerobic fitness to catch/kill prey and avoid or repel attackers; and 3) exposure to biological toxins present in foodstuffs. Accordingly, cells and organ systems acquired and retained molecular signaling and metabolic pathways through which the environmental challenges enhanced the functionality and resilience of the cells and organisms. Within the past 60 years there has been a precipitous diminution of such challenges in modern societies because of the development of technologies that provide a continuous supply of energy-dense processed foods and that largely eliminate the need for physical exertion. As a consequence of the modern 'couch potato' lifestyle, signaling pathways that mediate beneficial effects of environmental challenges on health and disease resistance are disengaged, thereby rendering people vulnerable to obesity, diabetes, cardiovascular disease, cancers and neurodegenerative disorders. Reversal of the epidemic of diseases caused by unchallenging lifestyles will require a society-wide effort to re-introduce intermittent fasting, exercise and consumption of plants containing hormetic phytochemicals into daily and weekly routines.
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Affiliation(s)
- Mark P Mattson
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, MD. 21224
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24
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Pascoe AR, Fiatarone Singh MA, Edwards KM. The effects of exercise on vaccination responses: a review of chronic and acute exercise interventions in humans. Brain Behav Immun 2014; 39:33-41. [PMID: 24126151 DOI: 10.1016/j.bbi.2013.10.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/03/2013] [Accepted: 10/03/2013] [Indexed: 12/15/2022] Open
Abstract
Vaccination programs, although feted for success in reducing infectious disease morbidity and mortality, are limited by vaccine efficacy, which is particularly problematic in populations with reduced immune function. Exercise has been identified as a behavioural factor that can improve immune function in some settings and cohorts, and therefore, in the setting of vaccination, it may serve as an adjuvant for immune responses. Here, we summarise the body of evidence that has investigated the effects of chronic or acute exercise interventions on vaccination responses. A systematic search of the literature was conducted including six major databases. Randomised control trials (RCTs), cross-sectional and observational studies that involved a variety of population samples and that employed any modality or intensity of acute exercise or chronic training prior to vaccine administration and measured any immune response were included. Twenty trials met the inclusion criteria for this review. Nine studies investigated the effect of acute exercise on the immune response to vaccination, whilst the remaining eleven studies investigated the effect of chronic exercise. Most of the current published literature suggests that exposure to either acute or chronic exercise significantly augments the immune response to vaccination. The clinical importance of this adjuvant action of exercise, if any, as well as variability in responsiveness across different cohorts, dose-response relationships and the optimal exercise modality to employ for this indication deserve further study.
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Affiliation(s)
- April R Pascoe
- Faculty of Health Sciences, Exercise Health and Performance Research Group, University of Sydney, Lidcombe, Australia
| | - Maria A Fiatarone Singh
- Faculty of Health Sciences, Exercise Health and Performance Research Group, University of Sydney, Lidcombe, Australia; Faculty of Medicine, University of Sydney, Lidcombe, Australia
| | - Kate M Edwards
- Faculty of Health Sciences, Exercise Health and Performance Research Group, University of Sydney, Lidcombe, Australia.
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Abstract
OBJECTIVE To assess whether a life-style physical activity intervention improved antibody response to a pneumococcal vaccination in sedentary middle-aged women. METHODS Eighty-nine sedentary women completed a 16-week exercise (physical activity consultation, pedometer, telephone/e-mail prompts; n = 44) or control (advisory leaflet; n = 45) intervention. Pneumococcal vaccination was administered at 12 weeks, and antibody titers (11 of the 23 contained in the pneumococcal vaccine) were determined before vaccination and 4 weeks and 6 months later. Physical activity, aerobic fitness, body composition, and psychological factors were measured before and after the intervention. RESULTS The intervention group displayed a greater increase in walking behavior (from mean [standard deviation] = 82.16 [90.90] to 251.87 [202.13]) compared with the control condition (111.67 [94.64] to 165.16 [117.22]; time by group interaction: F(1,68) = 11.25, p = .001, η(2) = 0.14). Quality of life also improved in the intervention group (from 19.37 [3.22] to 16.70 [4.29]) compared with the control condition (19.97 [4.22] to 19.48 [5.37]; time by group interaction: F(1,66) = 4.44, p = .039, η(2) = 0.06). However, no significant effects of the intervention on antibody response were found (time by group η(2) for each of the 11 pneumococcal strains ranged from 0.001 to 0.018; p values all >.264). CONCLUSIONS Participation in a life-style physical activity intervention increased subjective and objective physical activity levels and quality of life but did not affect antibody response to pneumococcal vaccination.
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Intlekofer KA, Cotman CW. Exercise counteracts declining hippocampal function in aging and Alzheimer's disease. Neurobiol Dis 2013; 57:47-55. [DOI: 10.1016/j.nbd.2012.06.011] [Citation(s) in RCA: 207] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 05/25/2012] [Accepted: 06/22/2012] [Indexed: 12/21/2022] Open
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Edwards KM, Booy R. Effects of exercise on vaccine-induced immune responses. Hum Vaccin Immunother 2013; 9:907-10. [PMID: 23319202 PMCID: PMC3903912 DOI: 10.4161/hv.23365] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 12/20/2012] [Indexed: 02/06/2023] Open
Abstract
The role of exercise in health is well known; here we discuss the specific role of exercise in vaccination responses. Chronic exercise or high levels of physical activity have been shown to be related to improved vaccination responses in older adults, illustrating improved immune function, and conferring potentially significant public health benefit. Acute exercise has recently been examined as a potential adjuvant to vaccination; its promise for clinical use warrants further investigation, given current data.
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Affiliation(s)
- Kate M. Edwards
- Exercise Health and Performance Research Group; University of Sydney; Lidcombe, NSW Australia
| | - Robert Booy
- National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases; University of Sydney; Sydney, NSW Australia
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Warren K, Thompson N, Wannemuehler M, Kohut M. Antibody and CD8+ T cell memory response to influenza A/PR/8/34 infection is reduced in treadmill-exercised mice, yet still protective. J Appl Physiol (1985) 2013; 114:1413-20. [PMID: 23493360 DOI: 10.1152/japplphysiol.01355.2012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Moderate exercise may decrease the severity of influenza infection and reduce lung viral load. The possibility that an exercise-associated reduction in lung viral load early in infection could contribute to decreased serum antibody and reduced memory response were investigated. BALB/c mice exercised for 8 wk and were then infected with influenza A/PR/8/34 (intranasal route). Influenza-specific serum antibody was assessed for 6 mo post primary infection, at which time mice were infected again with influenza A/PR/8/34. After primary infection, exercise reduced morbidity/mortality, attenuated lung cytokines, and decreased serum anti-influenza IgG and IgG2a from day 14 to day 180 post primary infection. After secondary infectious challenge, exercised mice did not show any signs of illness, but had reduced serum anti-influenza IgG and IgG2a, increased IgG1, and reduced influenza-specific recruited and resident CD8+ granzyme B+ T cells within the lungs. When influenza virus was administered by an intraperitoneal route during primary infection, exercise did not alter serum anti-influenza IgG, IgG1, or IgG2a, suggesting the exercise effect was specific to the lung environment. Exercise-induced enhancement of respiratory host defense to primary influenza infection results in decreased serum antibody and lung CD8+ T cell memory response, but does not compromise resistance to secondary infectious challenge.
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Affiliation(s)
- Kristi Warren
- Program of Immunobiology, Iowa State University, Ames, Iowa, USA
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Simpson RJ, Lowder TW, Spielmann G, Bigley AB, LaVoy EC, Kunz H. Exercise and the aging immune system. Ageing Res Rev 2012; 11:404-20. [PMID: 22465452 DOI: 10.1016/j.arr.2012.03.003] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 02/26/2012] [Accepted: 03/01/2012] [Indexed: 02/07/2023]
Abstract
Aging is associated with a decline in the normal functioning of the immune system that is described by the canopy term "immunosenescence". This contributes to poorer vaccine responses and the increased incidence of infection and malignancy seen in the elderly. Regular exercise has been associated with enhanced vaccination responses, lower numbers of exhausted/senescent T-cells, increased T-cell proliferative capacity, lower circulatory levels of inflammatory cytokines ("inflamm-aging"), increased neutrophil phagocytic activity, lowered inflammatory response to bacterial challenge, greater NK-cell cytotoxic activity and longer leukocyte telomere lengths in aging humans, all of which indicate that habitual exercise is capable of regulating the immune system and delaying the onset of immunosenescence. This contention is supported by the majority of animal studies that report improved immune responses and outcomes to viral infections and malignancies due to exercise training. However, whether or not exercise can reverse, as well as prevent, immunosenescence is a contentious issue, particularly because most longitudinal exercise training studies do not report the same positive effects of exercise on immunity that have been widely reported in studies with a cross-sectional design. In this review, we summarize some of the known effects of exercise on immunosenescence, discuss avenues for future research, and provide potential mechanisms by which exercise may help rejuvinate the aging immune system.
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Relationship between systemic inflammation and delayed-type hypersensitivity response to Candida antigen in older adults. PLoS One 2012; 7:e36403. [PMID: 22567155 PMCID: PMC3342252 DOI: 10.1371/journal.pone.0036403] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 04/06/2012] [Indexed: 12/20/2022] Open
Abstract
Research has shown that aging is associated with increased systemic inflammation as well as a reduction in the strength of immune responses. However, little evidence exists linking the decrease in cell-mediated immunity in older adults with other health parameters. We sought to examine the relationship between cell-mediated immunity as measured in vivo by the delayed-type hypersensitivity (DTH) response to candida antigen and demographic and physiological variables in older (65–80 y.o.) adults. Candida antigen response was not related to gender or obesity, or to a number of other physiological variables including fitness and body composition. However, positive responders had significantly lower serum C-reactive protein levels (CRP, p<0.05) vs. non-responders. Furthermore, subjects with CRP<4.75 mg•L−1 had greater odds of developing a positive response compared to those with CRP>4.75 mg•L−1. Therefore, positive responses to candida antigen in older adults appears to be related to lower levels of systemic inflammation.
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Long JE, Ring C, Drayson M, Bosch J, Campbell JP, Bhabra J, Browne D, Dawson J, Harding S, Lau J, Burns VE. Vaccination response following aerobic exercise: can a brisk walk enhance antibody response to pneumococcal and influenza vaccinations? Brain Behav Immun 2012; 26:680-7. [PMID: 22386744 DOI: 10.1016/j.bbi.2012.02.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 01/26/2012] [Accepted: 02/10/2012] [Indexed: 11/17/2022] Open
Abstract
High intensity acute exercise at the time of vaccination has been shown to enhance the subsequent antibody response. This study examines whether an acute moderate intensity aerobic intervention prior to vaccination can enhance antibody response to pneumonia and half dose influenza vaccination. Sixty young (age (SD)=22.0 (6.1) years) and 60 older (age (SD)=57.5 (6.5) years) adults attended the laboratory on two separate occasions. At the first session, baseline antibody titres were determined, before participants completed either a brisk walk around campus at >55% of their age-predicted heart rate maximum, or a resting control condition, for 45 min. After the intervention, all participants received a full-dose pneumococcal vaccination and a half-dose influenza vaccination. Four weeks later, participants returned for a follow up blood sample. Multivariate ANOVA revealed an increase in total antibody titres against the influenza vaccine (F((12,106))=25.76, p<.001, η(2)=.75) and both the IgM (F((12,106))=17.10, p<.001, η(2)=.66) and IgG (F((12,106))=25.76, p<.001, η(2)=.75) antibody titres against the pneumococcal vaccine. However, there were no significant Time×Group interactions (p's all >.15), indicating that a 45 min brisk walk prior to vaccination did not affect antibody response to either the influenza or pneumonia vaccine. The results suggest that higher intensity exercise is necessary to augment antibody response to vaccination.
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Affiliation(s)
- Joanna E Long
- School of Sport and Exercise Sciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, UK.
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Aarntzen EHJG, de Vries IJM, Göertz JH, Beldhuis-Valkis M, Brouwers HMLM, van de Rakt MWMM, van der Molen RG, Punt CJA, Adema GJ, Tacken PJ, Joosten I, Jacobs JFM. Humoral anti-KLH responses in cancer patients treated with dendritic cell-based immunotherapy are dictated by different vaccination parameters. Cancer Immunol Immunother 2012; 61:2003-11. [PMID: 22527252 PMCID: PMC3493659 DOI: 10.1007/s00262-012-1263-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 04/04/2012] [Indexed: 12/22/2022]
Abstract
Purpose Keyhole limpet hemocyanin (KLH) attracts biomedical interest because of its remarkable immunostimulatory properties. Currently, KLH is used as vaccine adjuvant, carrier protein for haptens and as local treatment for bladder cancer. Since a quantitative human anti-KLH assay is lacking, it has not been possible to monitor the dynamics of KLH-specific antibody (Ab) responses after in vivo KLH exposure. We designed a quantitative assay to measure KLH-specific Abs in humans and retrospectively studied the relation between vaccination parameters and the vaccine-induced anti-KLH Ab responses. Experimental design Anti-KLH Abs were purified from pooled serum of melanoma patients who have responded to KLH as a vaccine adjuvant. Standard isotype-specific calibration curves were generated to measure KLH-specific Ab responses in individual serum samples using ELISA. Results KLH-specific IgM, IgA, IgG and all IgG-subclasses were accurately measured at concentrations as low as 20 μg/ml. The intra- and inter-assay coefficients of variation of this ELISA were below 6.7 and 9.9 %, respectively. Analyses of 128 patients demonstrated that mature DC induced higher levels of KLH-specific IgG compared to immature DC, prior infusion with anti-CD25 abolished IgG and IgM production and patients with locoregional disease developed more robust IgG responses than advanced metastatic melanoma patients. Conclusions We present the first quantitative assay to measure KLH-specific Abs in human serum, which now enables monitoring both the dynamics and absolute concentrations of humoral immune responses in individuals exposed to KLH. This assay may provide a valuable biomarker for the immunogenicity and clinical effectiveness of KLH-containing vaccines and therapies. Electronic supplementary material The online version of this article (doi:10.1007/s00262-012-1263-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Erik H J G Aarntzen
- Department of Medical Oncology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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Pence BD, Martin SA, Woods JA. Exercise Training and Immunosenescence. Am J Lifestyle Med 2011. [DOI: 10.1177/1559827610392317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
During the aging process, a decrease in the ability of the immune system to control infection, known as immunosenescence, takes place. Paradoxically, aging also results in chronic low-level inflammation and exaggerated inflammatory responses. A number of studies have investigated the effects of a variety of exercise training interventions on the immune system both in humans and using animal models of aging. Cross-sectional studies that compared masters athletes to untrained, age-matched controls found that the athletes had significantly better immune function, but these studies suffered because of the difficulty in generalizing results from highly trained athletes to a general population of physically active older adults. Prospective studies in humans have attempted to address this, but these studies have resulted in sometimes equivocal findings, possibly as a result of the differences in exercise training programs used. Finally, animal studies, both observational and mechanistic, have almost universally supported the exercise effect on enhancing immune status in the aged. More research is needed to determine the mechanism by which exercise influences immunity in the aged and to identify exercise training programs for use in this population. It is clear, however, that exercise is likely to be effective at boosting immunity in the older people when undertaken regularly.
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Affiliation(s)
- Brandt D. Pence
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, Integrative Immunology and Behavior Program, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Stephen A. Martin
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, Integrative Immunology and Behavior Program, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Jeffrey A. Woods
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, Department of Pathology, University of Illinois at Urbana-Champaign, Urbana, Illinois, Integrative Immunology and Behavior Program, University of Illinois at Urbana-Champaign, Urbana, Illinois,
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Abstract
In the past 40 years, a growing body of literature has shown that chronic psychological stress can lead to immune dysregulation. Notably, these stress-induced immune changes are large enough to be clinically relevant. Chronic stress has been associated with a state of chronic low-grade inflammation, delayed wound healing, poor responses to vaccine, and increased susceptibility to infectious illnesses. Activation of neuroendocrine and sympathetic systems provides physiological pathways linking stress and these immune outcomes. Behavioral changes under conditions of chronic stress also contribute to immune dysregulation. Behavioral and pharmacological interventions may attenuate stress-induced immune dysregulation.
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Affiliation(s)
- Jean-Philippe Gouin
- Department of Behavioral Sciences, Rush University Medical Center, Chicago, Illinois
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35
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Krause N. God-Mediated Control and Change in Self-Rated Health. THE INTERNATIONAL JOURNAL FOR THE PSYCHOLOGY OF RELIGION 2010; 20:267-287. [PMID: 21057586 PMCID: PMC2971554 DOI: 10.1080/10508619.2010.507695] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The purpose of this study was to see if feelings of God-mediated control are associated with change in self-rated health over time. In the process, an effort was made to see if a sense of meaning in life and optimism mediated the relationship between God-mediated control and change in health. The following hypothesized relationships were contained in the conceptual model that was developed to evaluate these issues: (1) people who go to church more often tend to have stronger God-mediated control beliefs than individuals who do not attend worship services as often; (2) people with a strong sense of God-mediated control are more likely to find a sense of meaning in life and be more optimistic than individuals who do not have a strong sense of God-mediated control; (3) people who are optimistic and who have a strong sense of meaning in life will rate their health more favorably over time than individuals who are not optimistic, as well as individuals who have not found a sense of meaning in life. Data from a longitudinal nationwide survey of older adults provided support for each of these hypotheses.
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Woods JA, Keylock KT, Lowder T, Vieira VJ, Zelkovich W, Dumich S, Colantuano K, Lyons K, Leifheit K, Cook M, Chapman-Novakofski K, McAuley E. Cardiovascular exercise training extends influenza vaccine seroprotection in sedentary older adults: the immune function intervention trial. J Am Geriatr Soc 2010; 57:2183-91. [PMID: 20121985 DOI: 10.1111/j.1532-5415.2009.02563.x] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES To determine whether cardiovascular exercise training resulted in improved antibody responses to influenza vaccination in sedentary elderly people who exhibited poor vaccine responses. DESIGN Single-site randomized parallel-arm 10-month controlled trial. SETTING University of Illinois at Urbana-Champaign. PARTICIPANTS One hundred forty-four sedentary, healthy older (69.9 +/- 0.4) adults. INTERVENTIONS Moderate (60-70% maximal oxygen uptake) cardiovascular exercise was compared with flexibility and balance training. MEASUREMENTS The primary outcome was influenza vaccine response, as measured according to hemagglutination inhibition (HI) anti-influenza antibody titer and seroprotective responses (HI titer > or =40). Secondary measures included cardiovascular fitness and body composition. RESULTS Of the 160 participants enrolled, 144 (90%) completed the 10-month intervention with excellent compliance ( approximately 83%). Cardiovascular, but not flexibility, exercise intervention resulted in improvements in indices of cardiovascular fitness, including maximal oxygen uptake. Although not affecting peak (e.g., 3 and 6 weeks) postvaccine anti-influenza HI titers, cardiovascular exercise resulted in a significant increase in seroprotection 24 weeks after vaccination (30-100% dependent on vaccine variant), whereas flexibility training did not. CONCLUSION Participants randomized to cardiovascular exercise experienced improvements in influenza seroprotection throughout the entire influenza season, whereas those in the balance and flexibility intervention did not. Although there were no differences in reported respiratory tract infections, the exercise group exhibited reduced overall illness severity and sleep disturbance. These data support the hypothesis that regular endurance exercise improves influenza vaccine responses.
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Affiliation(s)
- Jeffrey A Woods
- Department of Kinesiology and Community Health, University of Illinois, Urbana-Champaign, IL 61801, USA.
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Brydon L, Walker C, Wawrzyniak AJ, Chart H, Steptoe A. Dispositional optimism and stress-induced changes in immunity and negative mood. Brain Behav Immun 2009; 23:810-6. [PMID: 19272441 PMCID: PMC2715885 DOI: 10.1016/j.bbi.2009.02.018] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Revised: 02/16/2009] [Accepted: 02/27/2009] [Indexed: 01/13/2023] Open
Abstract
Evidence suggests that optimism may be protective for health during times of heightened stress, yet the mechanisms involved remain unclear. In a double-blind placebo-controlled study, we recently showed that acute psychological stress and an immune stimulus (Typhim-Vi typhoid vaccine) synergistically increased serum levels of interleukin-6 (IL-6) and negative mood in 59 healthy men. Here we carried out further analysis of this sample to investigate the relationship between dispositional optimism and stress-induced changes in immunity and mood. Volunteers were randomly assigned to one of four experimental conditions in which they received either typhoid vaccine or saline placebo, and then rested or completed two mental tasks. In the stress condition, optimism was inversely related to IL-6 responses, independent of age, BMI, trait CES-D depression and baseline IL-6. This relationship was present across both stress groups (combining vaccine and placebo) and was not present in the vaccine/stress group alone, suggesting that optimism protects against the inflammatory effects of stress rather than vaccine per se. Typhoid vaccine induced a significant increase in participants' circulating anti-Vi antibody levels. Stress had no effect on antibody responses overall. However, in the vaccine/stress group, there was a strong positive association between optimism and antibody responses, indicating that stress accentuated the antibody response to vaccine in optimists. Across the complete sample, more optimistic individuals had smaller increases in negative mood and less reduction in mental vigour. Together these findings suggest that optimism may promote health, by counteracting stress-induced increases in inflammation and boosting the adjuvant effects of acute stress.
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Affiliation(s)
- Lena Brydon
- Psychobiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, UK.
| | - Cicely Walker
- Psychobiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, UK
| | - Andrew J. Wawrzyniak
- Psychobiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, UK
| | - Henrik Chart
- Laboratory of Enteric Pathogens, Department of Gastrointestinal Infections, Centre for Infections, Health Protection Agency, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Andrew Steptoe
- Psychobiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, UK
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Rogers CJ, Zaharoff DA, Hance KW, Perkins SN, Hursting SD, Schlom J, Greiner JW. Exercise enhances vaccine-induced antigen-specific T cell responses. Vaccine 2008; 26:5407-15. [PMID: 18706954 DOI: 10.1016/j.vaccine.2008.07.081] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Revised: 07/28/2008] [Accepted: 07/29/2008] [Indexed: 12/23/2022]
Abstract
Regular moderate exercise has been proposed to enhance immune function, but its effects on immunity and their consequences have not been well studied. Mice without (AL) or with access (AL+EX) to voluntary running wheels were vaccinated with a model antigen (ovalbumin (OVA)) via intranasal or subcutaneous routes to target the mucosal and systemic immune compartments, respectively. EX enhanced OVA-specific CD4(+) T cell cytokine production and proliferation in all lymphoid organs examined without changes in cell distribution in any organ. These results suggest that coupling moderate exercise with vaccination may enhance vaccine efficacy for the prevention and/or therapy of numerous diseases.
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Affiliation(s)
- Connie J Rogers
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute/NIH, Bethesda, MD 20892, USA
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