{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T18:41:45Z","timestamp":1774982505849,"version":"3.50.1"},"reference-count":24,"publisher":"S. Karger AG","issue":"3-4","license":[{"start":{"date-parts":[[2001,1,1]],"date-time":"2001-01-01T00:00:00Z","timestamp":978307200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2001,1,1]],"date-time":"2001-01-01T00:00:00Z","timestamp":978307200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neonatology"],"published-print":{"date-parts":[[2001]]},"abstract":"<jats:p>Caspase-3 is a major effector protease in several apoptotic pathways, but its role in hypoxic-ischemic (HI) brain injury is incompletely understood. Cerebral HI was induced in 7-day-old rats by unilateral carotid artery ligation and exposure to 7.7% oxygen for 55 min. Caspase-3-like activity was significantly increased at 1 h (208%), peaked at 24 h (2,563%) and was still increased 6 days after HI (169%) in the ipsilateral cerebral cortex. Concomitantly, cleavage of the caspase-3 proform (31\/33 kD) was detected on immunoblots, producing 29- and 17-kD fragments. Furthermore, significant degradation of the endogenous caspase-3 substrates inhibitor of caspase-activated DNase (DNA fragmentation factor 45), poly(ADP-ribose) polymerase and fodrin occurred. In conclusion, caspase-3 is activated extensively in the immature brain after HI. 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