{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,30]],"date-time":"2026-08-30T02:32:49Z","timestamp":1788057169157,"version":"build-2784847793"},"reference-count":57,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T00:00:00Z","timestamp":1728000000000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Immunity Inflam &amp;amp; Disease"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Cerebral ischemic disease is a common cerebrovascular disease, especially ischemic stroke. Exercise has protective functions on brain tissues following cerebral ischemia\u2010reperfusion injury (CIRI), but its preventive effects and mechanisms in CIRI remain unclear. We aimed to investigate the effects and mechanisms of exercise preconditioning on CIRI.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The middle cerebral artery occlusion (MCAO) operation was prepared to establish CIRI rats. All rats were randomized into the MCAO, exercise (exercise preconditioning plus MCAO operation), vector (exercise preconditioning, MCAO operation plus intraventricular injection of empty vector), and tissue inhibitor of metalloprotease 1 overexpression (OE\u2010TIMP1, exercise preconditioning, MCAO operation plus intraventricular injection of OE\u2010TIMP1) groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The results indicated that exercise preconditioning suppressed approximately 66.67% of neurological deficit scores and 73.79% of TIMP1 mRNA expression in MCAO rats, which were partially offset by OE\u2010TIMP1. The protective effects of exercise against neuron death status and cerebral infarction size in MCAO rats were reversed by OE\u2010TIMP1. It also confirmed that exercise weakened apoptosis and oxidative stress damage, with notable increases of B\u2010cell lymphoma\u20102, superoxide dismutase, and glutathione peroxidase production, and evident decreases of BCL2\u2010associated X, caspase 3, and malondialdehyde in MCAO rats, while these effects were partially reversed by OE\u2010TIMP1. Additionally, the inhibitory effects of exercise on the protein levels of TIMP1, hypoxia\u2010inducible factor\u2010alpha, vascular endothelial growth factor receptor 2, vascular endothelial growth factor, and neurogenic locus notch homolog protein 1 in MCAO rats were partially reversed by OE\u2010TIMP1.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Altogether, exercise preconditioning had protective effects on CIRI by restraining TIMP1, which provided new therapeutic strategies for preventing CIRI.<\/jats:p><\/jats:sec>","DOI":"10.1002\/iid3.70008","type":"journal-article","created":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T10:39:54Z","timestamp":1728038394000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Exercise preconditioning mitigates brain injury after cerebral ischemia\u2010reperfusion injury in rats by restraining 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