Journal
INTERNATIONAL REVIEWS OF IMMUNOLOGY
Volume 39, Issue 2, Pages 39-52Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/08830185.2019.1682569
Keywords
Physical activity; inflammation; obesity; cytokines; metabolic syndrome; diabetes
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Funding
- Chilean National Science and Technology Fund, FONDECYT [11150576]
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Over the last three decades, the combination of a sedentary lifestyle and excessive food intake has led to a significant increase in the prevalence of obesity. The latter favors a chronic low-grade inflammatory state and an over-activation of the innate immune system, which contribute to insulin resistance and type 2 diabetes. Physical exercise is a powerful preventive tool and treatment for several diseases as it induces metabolic and immune effects that provide health benefits. Exercise is known to reduce inflammation; however, the underlying mechanisms responsible are not fully elucidated. One proposed mechanism is a reduced expression and/or activation of pro-inflammatory toll-like receptors (TLRs) on innate immune cells after exercise, which could contribute to the protective effect of exercise against insulin resistance and the prevention of the development of metabolic diseases. The aim of the present study is therefore to review the current evidence about the anti-inflammatory effects of exercise and toll-like receptors regulation on immune cells in humans.
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