Fig. 3From: Therapeutic effects of adipose-tissue-derived mesenchymal stromal cells and their extracellular vesicles in experimental silicosisRepresentative photomicrographs of the lung parenchyma of animals from the silica group (a) and the SIL group treated with cells (b) or EVs in two different doses: EV5 (c) and EV6 (d). Slices were stained with hematoxylin–eosin staining. Arrows indicate granulomas, 200×. e Fraction of area of granuloma in the lungs, quantified by analysis of photomicrographs of 5 animals per group, represented as a percentage of the total area of lung tissue. *Significantly different from SIL-Sal, p < 0.05Back to article page