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. 2009 Mar;20(3):489–494. doi: 10.1681/ASN.2008050503

Figure 3.

Figure 3.

Albumin distribution in PT cells is reduced in diabetes. (A) Representative pictures of the distribution of albumin in the kidney of 12-wk diabetic rats and age-matched control rats. Images shown are before albumin-Alexa568 (red) injection and 2.5 min and 24 min after albumin-Alexa injection. Albumin uptake (red) can be seen in the S1 segment of the PT (arrows). This uptake is dramatically reduced in the diabetic group. Bar = 30 μm. (B) Enlarged picture of the region highlighted by arrows in A. The enlarged picture demonstrates the dramatic change in the distribution of albumin in PT cells. Bar = 15 μm. (C) Quantification of the amount of albumin distributed along the S1 segment throughout the cell (P < 0.01 control versus diabetic; control n = 4, diabetic n = 4). G, glomerulus; PT, proximal tubule.