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Employing a non-ionic detergent as a colloidosmotically active substance 10 fully isolated rat kidneys were perfused for 60 min. A constant glomerular filtration rate (GFR) of 1.0 ml × g−1 × min−1 and a mean Na+-net transport of about 92 μmol × g−1 × min−1 was obtained. The mean O2-consumption of 0.17 ml × g−1 × min−1 was rather high. However, addition of the decoupling agent 2,4-dinitrophenol led to an increase of the O2-consumption by 98%, thus speaking against spontaneous uncoupling. Glomerula, proximal and distal convoluted tubules of kidneys perfused with plasmaexpander-solutions were studied electronmicroscopically. The most striking morphological deviations were found in the proximal tubules of the Haemaccel®-perfused kidneys. In the Pluronic®-kidneys significantly less morphological alterations were found. These morphological changes were of a type which was previously described by other investigators after periods of hypoxia.

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Mit Unterstützung durch die Deutsche Forschungsgemeinschaft Bad Godesberg.

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Franke, H., Huland, H., Weiss, C. et al. Improved net sodium transport of the isolated rat kidney. Z. Gesamte Exp. Med. 156, 268–282 (1971). https://doi.org/10.1007/BF02045828

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