1. Interaction between cytokine gene polymorphisms and the effect of physical exercise on clinical and inflammatory parameters in older women: study protocol for a randomized controlled trial.
- Author
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Pereira DS, Queiroz BZ, Mateo EC, Assumpção AM, Felício DC, Miranda AS, Anjos DM, Jesus-Moraleida F, Dias RC, Pereira DA, Teixeira AL, and Pereira LS
- Subjects
- Age Factors, Aged, Aging blood, Aging immunology, Biomarkers blood, Brazil, Cytokines blood, Enzyme-Linked Immunosorbent Assay, Exercise Test, Female, Geriatric Assessment, Humans, Inflammation blood, Inflammation immunology, Inflammation physiopathology, Interleukin-10 genetics, Interleukin-6 genetics, Polymerase Chain Reaction, Receptors, Tumor Necrosis Factor, Type I blood, Receptors, Tumor Necrosis Factor, Type II blood, Sex Factors, Time Factors, Treatment Outcome, Tumor Necrosis Factor-alpha genetics, Aging genetics, Cytokines genetics, Exercise Therapy methods, Inflammation genetics, Inflammation prevention & control, Inflammation Mediators blood, Polymorphism, Single Nucleotide, Research Design
- Abstract
Background: Aging is associated with chronic low-grade inflammatory activity with an elevation of cytokine levels. An association between regular physical activity and reduction of blood levels of anti-inflammatory cytokines is demonstrated in the literature pointing to an anti-inflammatory effect related to exercise. However, there is no consensus regarding which type of exercise and which parameters are the most appropriate to influence inflammatory markers. Evidence indicates that the single nucleotide polymorphism (SNP) can influence the synthesis of those cytokines affecting their production., Methods/design: The design of this study is a randomized controlled trial. The aim of this study is to investigate the interaction between the cytokine genes SNP and the effect of physical activity on older women. The main outcomes are: serum levels of sTNFR-1, sTNFR-2, interleukin (IL)-6, IL-10, measured by the ELISA method; genotyping of tumor necrosis factor- (TNF)-alpha (rs1800629), IL6 (rs1800795), IL10 (rs1800896) by the TaqMan Method (Applied Biosystems, Foster City, CA, USA); and physical performance assessed by Timed Up and Go and 10-Meter Walk Tests. Secondary outcomes include: Geriatric Depression Scale, Perceived Stress Scaleand aerobic capacity, assessed by the six-minute walk; and lower limb muscle strength, using an isokinetic dinamometer (Biodex Medical Systems, Inc., Shirley, NY,USA). Both exercise protocols will be performed three times a week for 10 weeks, 30 sessions in total., Discussion: Investigating the interaction between genetic factors and exercise effects of both protocols of exercise on the levels of inflammatory cytokine levels can contribute to guide clinical practice related to treatment and prevention of functional changes due to chronic inflammatory activity in older adults. This approach could develop new perspectives on preventive and treatment proposals in physical therapy and in the management of the older patient., Trial Registration: (ReBEC) RBR9v9cwf.
- Published
- 2012
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