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  • Title: Volume regulation of muscle fibres in the killifish, Fundulus heteroclitus.
    Author: Schmidt-Nielsen B.
    Journal: J Exp Zool; 1977 Mar; 199(3):411-8. PubMed ID: 850121.
    Abstract:
    Cell volume regulation has been observed in vitro in many tissues. In the killifish it was studied in vivo during transfer from SW to FW and from FW to SW. It was found that the cell water content in acclimated fish varies inversely with the osmolality of the medium. During transfer from SW to FW the plasma osmolality decreased. Cell swelling was prevented through net loss of solutes from the cells. The solutes lost were not potassium or sodium and are presumed to be organic solutes. Dund no significant increase in cell solute content could be found during eight hours. During prolonged acclimation cell water content returns to a higher value.
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