The mice were anesthetized by inhalation of Isoflurane (Isoflurane, Abbott, Maidenhead, UK; dosages detailed in the MCAO procedure description). The spleen was removed via a dorsolateral approach, the fur around the 13th rib was shaved, the area was disinfected with 70% ethanol, and an incision was made below the 13th rib to access the spleen. It was separated from its blood vessels using electrocautery, and the wound was closed with metal clips. The animals were monitored for one day in a heated cage with analgesia using 0.1 mL of buprenorphine (Buprenovet, Bayer, Leverkusen, Germany). Full recovery from the operation was deemed after a week (22 (link),23 (link)).
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