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Bettariga F, Taaffe DR, Galvão DA, Lopez P, Bishop C, Markarian AM, Natalucci V, Kim JS, Newton RU. Exercise training mode effects on myokine expression in healthy adults: A systematic review with meta-analysis. JOURNAL OF SPORT AND HEALTH SCIENCE 2024:S2095-2546(24)00049-8. [PMID: 38604409 DOI: 10.1016/j.jshs.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/14/2024] [Accepted: 03/18/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND The benefits of exercise are well known; however, many of the underlying molecular mechanisms are not fully understood. Skeletal muscle secretes myokines, which mediate muscle-organ crosstalk. Myokines regulate satellite-cell proliferation and migration, inflammatory cascade, insulin secretion, angiogenesis, fatty oxidation, and cancer suppression. To date, the effects of different exercise modes (namely, aerobic and resistance exercise) on myokine response remain to be elucidated. This is crucial considering the clinical implementation of exercise to enhance general health and wellbeing and as a medical treatment. METHODS A systematic search was undertaken in PubMed, Medline, CINAHL, Embase, SPORTDiscus, and Web of Science in April 2023. Eligible studies examining the effects of a single bout of exercise on interleukin15 (IL-15), irisin, secreted protein acidic and rich in cysteine (SPARC), oncostatin M (OSM), and decorin were included. A random-effects meta-analysis was also undertaken to quantify the magnitude of change. RESULTS Sixty-two studies were included (n = 1193). Overall, exercise appeared to induce small to large increases in myokine expression, with effects observed immediately after to 60 min post-exercise, although these were mostly not statistically significant. Both aerobic and resistance exercise resulted in changes in myokine levels, without any significant difference between training modes, and with the magnitude of change differing across myokines. Myokine levels returned to baseline levels within 180 min to 24 h post-exercise. However, owing to potential sources of heterogeneity, most changes were not statistically significant, indicating that precise conclusions cannot be drawn. CONCLUSION Knowledge is limited but expanding with respect to the impact of overall and specific effects of exercise on myokine expression at different time points in the systemic circulation. Further research is required to investigate the effects of different exercise modes at multiple time points on myokine response.
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Affiliation(s)
- Francesco Bettariga
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Dennis R Taaffe
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Daniel A Galvão
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Pedro Lopez
- Pleural Medicine Unit, Institute for Respiratory Health, Perth, WA 6009, Australia; Medical School, Faculty of Health & Medical Sciences, University of Western Australia, Perth, WA 6009, Australia; Grupo de Pesquisa em Exercício para Populações Clínicas (GPCLIN), Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul 95070-560, Brazil
| | - Chris Bishop
- London Sport Institute, School of Science and Technology, Middlesex University, London, NW4 4BT, UK
| | - Anna Maria Markarian
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Valentina Natalucci
- Department of Pathophysiology and Transplantation, University of Milan, Milan 20133, Italy
| | - Jin-Soo Kim
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Robert U Newton
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia; School of Human Movement and Nutrition Sciences, University of Queensland, St. Lucia, QLD 4072, Australia.
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Bao JF, She QY, Hu PP, Jia N, Li A. Irisin, a fascinating field in our times. Trends Endocrinol Metab 2022; 33:601-613. [PMID: 35872067 DOI: 10.1016/j.tem.2022.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 05/30/2022] [Accepted: 06/26/2022] [Indexed: 11/22/2022]
Abstract
Irisin is a muscle-secreted hormone that is generated by cleavage of membrane protein FNDC-5 (fibronectin type III domain-containing protein 5). Irisin is considered to be a mediator of exercise-induced metabolic improvements, such as browning of white adipose tissue, and is known to alleviate several chronic non-metabolic diseases. Thus, irisin may be an ideal therapeutic target for metabolic and non-metabolic diseases. However, several controversies regarding irisin have hindered its clinical translation. We review the generation, regulation (especially in exercise), and metabolic as well as therapeutic effects of irisin on metabolic and non-metabolic diseases. Furthermore, we discuss controversies regarding irisin and highlight potential future research directions.
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Affiliation(s)
- Jing-Fu Bao
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China
| | - Qin-Ying She
- Department of Nephrology, The Fifth Affiliated Hospital, Southern Medical University, 510999 Guangzhou, China
| | - Pan-Pan Hu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China
| | - Nan Jia
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China
| | - Aiqing Li
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China.
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Exercise-Mediated Browning of White Adipose Tissue: Its Significance, Mechanism and Effectiveness. Int J Mol Sci 2021; 22:ijms222111512. [PMID: 34768943 PMCID: PMC8583930 DOI: 10.3390/ijms222111512] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/17/2022] Open
Abstract
As a metabolic organ, adipose tissue plays an important role in regulating metabolism. In adults, most adipose tissue is white adipose tissue (WAT), and excessive expansion of WAT will lead to obesity. It is worth noting that exercise can reduce the fat mass. There is also a lot of evidence that exercise can promote the browning of WAT, which is beneficial for metabolic homeostasis. Multiple factors, including reactive oxygen species (ROS), metabolites, nervous system, exerkines and lipolysis can facilitate exercise-mediated browning of WAT. In this review, the roles and the underlying mechanisms of exercise-mediated browning of WAT are summarized. The effects of different styles of exercise on the browning of WAT are also discussed, with the aim to propose better exercise strategies to enhance exercise-mediated browning of WAT, so as to promote metabolic health. Finally, the different reactivity of WAT at different anatomical sites to exercise-mediated browning is reviewed, which may provide potential suggestion for people with different fat loss needs.
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