Formalin‐fixed paraffin‐embedded kidneys were sectioned at 4 μm thickness. Sections were stained with PAS to determine the cystic index (CI) and with picro‐sirius red (PSR) to determine fibrotic index. Kidney sections were also stained for αSMA, F4/80, YAP, pSTAT3, GM130. More details are provided in supplementary material, Supplementary materials and methods.
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