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“The evolution of the classification of nephrotic syndrome and the ...

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FSGS: From podocyte hypertrophy to podocytopenia.Wiggins et al JASN 2005.In response to increased glomerular volume, podocytes undergo hypertrophythough 5 stages.•Stage 1, normal podocyte;•Stage 2, non-stressed hypertrophy;•Stage 3, "adaptive" hypertrophy: changes in syn<strong>the</strong>sis <strong>of</strong> structural componentsbut maintenance <strong>of</strong> normal function;•Stage 4, "de-compensated" hypertrophy- reduced production <strong>of</strong> proteins necessary for normal podocyte function.- widened foot processes <strong>and</strong> decreased filter efficiency (proteinuria);•Stage 5, podocyte numbers decrease.Dr Kriz’s model

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