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Home Science & Environment Medical Research

Fish swim bladders could be useful in a treatment for heart failure

April 9, 2025
in Medical Research
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Hydrogels, which are soft materials formed by cross-linking polymers, could have a variety of medical applications. In research published in Advanced Science, investigators developed an injectable hydrogel containing components of fish swim bladders and used it to repair damaged heart tissue.

The fish swim bladder is an organ that aids fish in floating in water and is composed of collagen, glycosaminoglycans, and elastin, closely resembling parts of the human heart.

Experiments revealed that the researchers’ fish swim bladder–based hydrogel enhances cardiac cell adhesion and stretching while promoting new blood vessel formation and causing immune cells to fight inflammation. The hydrogel also provided sustained support for heart contractions. These effects were seen after hydrogel treatment in cultured cells and in a rat model of ischemic heart failure.

“The irreversible loss of cardiomyocytes—or heart muscle cells—following ischemic events underpins the pressing need for novel regenerative strategies in myocardial repair,” said lead corresponding author Zhihong Wang, Ph.D., of Nankai University in China.

“By harnessing the unique bioactivity of fish swim bladder–derived biomaterials to enhance hydrogel performance, this innovative approach promises to significantly advance the restoration of cardiac function and overcome current therapeutic limitations.”

More information:
Fish swim bladder-derived ECM hydrogels effectively treat myocardial ischemic injury through immunomodulation and angiogenesis, Advanced Science (2025). DOI: 10.1002/advs.202500036

Citation:
Fish swim bladders could be useful in a treatment for heart failure (2025, April 9)
retrieved 9 April 2025
from https://medicalxpress.com/news/2025-04-fish-bladders-treatment-heart-failure.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.



fish
Credit: Unsplash/CC0 Public Domain

Hydrogels, which are soft materials formed by cross-linking polymers, could have a variety of medical applications. In research published in Advanced Science, investigators developed an injectable hydrogel containing components of fish swim bladders and used it to repair damaged heart tissue.

The fish swim bladder is an organ that aids fish in floating in water and is composed of collagen, glycosaminoglycans, and elastin, closely resembling parts of the human heart.

Experiments revealed that the researchers’ fish swim bladder–based hydrogel enhances cardiac cell adhesion and stretching while promoting new blood vessel formation and causing immune cells to fight inflammation. The hydrogel also provided sustained support for heart contractions. These effects were seen after hydrogel treatment in cultured cells and in a rat model of ischemic heart failure.

“The irreversible loss of cardiomyocytes—or heart muscle cells—following ischemic events underpins the pressing need for novel regenerative strategies in myocardial repair,” said lead corresponding author Zhihong Wang, Ph.D., of Nankai University in China.

“By harnessing the unique bioactivity of fish swim bladder–derived biomaterials to enhance hydrogel performance, this innovative approach promises to significantly advance the restoration of cardiac function and overcome current therapeutic limitations.”

More information:
Fish swim bladder-derived ECM hydrogels effectively treat myocardial ischemic injury through immunomodulation and angiogenesis, Advanced Science (2025). DOI: 10.1002/advs.202500036

Citation:
Fish swim bladders could be useful in a treatment for heart failure (2025, April 9)
retrieved 9 April 2025
from https://medicalxpress.com/news/2025-04-fish-bladders-treatment-heart-failure.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.


Tags: Health ResearchHealth Research NewsHealth ScienceMedicine ResearchMedicine Research NewsMedicine Science
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