Fig. 1From: MicroRNA expression profile of urinary exosomes in Type IV lupus nephritis complicated by cellular crescentCharacteristics of urinary exosomes. a Transmission electron microscope images of isolated exosomes. Bars = 100 nm. Diameter of the exosome measured at 74.66 nm. b Western blot indicated CD9 and CD81-positive expression and calnexin-negative expressionBack to article page