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Characterization of plasma exosomes. (A) Pre- and post-operative exosomes in the young AKI (left) and elderly AKI (right) groups were positive for the protein markers Alix, TSG101, and CD81. (B) The plasma exosomes were identified using TEM. (C) The size of exosomes analyzed by NTA. AKI: Acute kidney injury; NTA: Nanoparticle tracking analysis; TEM: Transmission electron microscope.
