Fig. 4
The size and concentration of feline samples-derived exosomes measured by flow nano analyzer. A Nano track analysis size distribution of exosomes isolated from feline adipose-derived mesenchymal stem cell culture medium, feline plasma, and feline urine. B Diameter of isolated particles (exosomes). The mean diameters of exosomes from feline adipose-derived mesenchymal stem cell culture medium, plasma, and urine were 74.76 nm, 66.62 nm, and 72.88 nm, respectively. C Counts of particles (exosomes). The concentration of exosomes from feline adipose-derived mesenchymal stem cell culture medium, plasma, and urine were 2.62 × 1010 /ml, 6.42 × 1010 /ml, and 8.49 × 1011 /ml, respectively