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Morphometric studies of the extraglomerular mesangial cell field in volume expanded and volume depleted rats

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Summary

The extraglomerular mesangial cell field was studied by morphometric techniques in volume expanded and volume depleted rats. The volume density of the extraglomerular mesangial interstitium was found to be significantly different between the two conditions, 16.9±3.7% in volume depletion and 29.0±4.1% in volume expansion. No difference in the volume density of the peritubular interstitium could be detected under the same conditions. These findings are interpreted as indicating a specific sensitivity of the extraglomerular mesangial interstitium to changes in body fluid content, a phenomenon which may play a role in the mechanism of resetting the tubulo-glomerular feedback control.

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Schnabel, E., Kriz, W. Morphometric studies of the extraglomerular mesangial cell field in volume expanded and volume depleted rats. Anat Embryol 170, 217–222 (1984). https://doi.org/10.1007/BF00319007

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