Representative light microscopy (upper panels, Hematoxilin-Eosin, scale bars 50
μm) shows a damaged glomerulus surrounded by dilated tubuli filled by protein casts
in a mouse treated with saline (left panel). BDNF is effective in reducing renal damage in
a mouse injected with scramble siRNA (middle panel), whereas the efficacy is blunted after
silencing of TrkB (right panel).
Nephrin positivity (second row) can be clearly observed in a BDNF/scramble injected
animal (middle panel), whereas is barely detectable in glomeruli from a saline-treated and
a BDNF/TrkB-silenced mouse.
Cofilin staining (third row) does not show major changes in all experimental conditions.
Instead, P-cofilin (fourth row) is almost negative after saline (left panel) and BDNF/TrkB
silencing (right panel), and is clearly positive after BDNF/scramble siRNA (middle panel).
Scale bars 25 μm.