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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Cell Tissue Res. 2015 Sep 4;363(3):791–803. doi: 10.1007/s00441-015-2273-x

Fig. 7. Extratubular cells positive for NBT reduction.

Fig. 7

a. Medulla in 10-μm section (cortex shown in Fig. 2a). Multiple diformazan-positive cells are present.

b. Two-micrometer section from medullary region shown in A, showing distribution of cells in the medullary tubules.

c. Detail of b, illustrating the dendritic profiles and densely staining nuclei of diformazan-stained tubule cells.

d. Two-micrometer section (Lotus staining) with a blue cell constituting part of the wall of a portion of the thin loop.

e. Interstitial diformazan-positive cell sandwiched among several pars recta profiles.

f. A diformazan-positive cell appears to adhere to the outer border of a proximal tubule while inserting a cytoplasmic projection into the tubule. Lotus staining with Neutral Red counterstain. Scale bar in a = 250 μm; scale bar in b = 100 μm; scale bars in c-f each =10 μm.