Physiological Responses to Swimming-Induced Exercise in the Adult Zebrafish Regenerating Heart

Rovira, Mireia; Borràs, Daniel M.; dos Santos Marques, Ines Joao; Puig, Carolina; Planas, Josep V. (2018). Physiological Responses to Swimming-Induced Exercise in the Adult Zebrafish Regenerating Heart. Frontiers in physiology, 9, p. 1362. Frontiers Research Foundation 10.3389/fphys.2018.01362

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Exercise promotes a set of physiological responses known to provide long-term health benefits and it can play an important role in cardioprotection. In the present study, we examined cardiac responses to exercise training in the adult zebrafish and in the context of cardiac regeneration. We found that swimming-induced exercise increased cardiomyocyte proliferation and that this response was also found under regenerating conditions, when exercise was performed either prior to and after ventricular cryoinjury (CI). Exercise prior to CI resulted in a mild improvement in cardiac function and lesion recovery over the non-exercise condition. Transcriptomic profiling of regenerating ventricles in cryoinjured fish subjected to exercise identified genes possibly involved in the cardioprotective effects of exercise and that could represent potential targets for heart regeneration strategies. Taken together, our results suggest that exercise constitutes a physiological stimulus that may help promote cardiomyogenic mechanisms of the vertebrate heart through the induction of cardiomyocyte proliferation. The zebrafish exercise model may be useful for investigating the potential cardioprotective effects of exercise in teleost fish and to contribute to further identify and develop novel avenues in basic research to promote heart regeneration.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy
09 Interdisciplinary Units > Microscopy Imaging Center (MIC)

UniBE Contributor:

dos Santos Marques, Ines Joao

ISSN:

1664-042X

Publisher:

Frontiers Research Foundation

Language:

English

Submitter:

Nadia Isabel Mercader Huber

Date Deposited:

12 Feb 2019 14:44

Last Modified:

05 Nov 2019 13:12

Publisher DOI:

10.3389/fphys.2018.01362

PubMed ID:

30327615

BORIS DOI:

10.7892/boris.124559

URI:

https://boris.unibe.ch/id/eprint/124559

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