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The present study aimed to investigate the protective effects of dehydrocostuslactone (DHL) against rat hippocampal slice injury caused by oxygen‑glucose deprivation/reoxygenation (OGD/R). Rat hippocampal slice injury was induced by OGD/R in vitro, and the degree of injury was evaluated through a lactate dehydrogenase (LDH) assay and 2,3,5‑triphenyltetrazolium chloride (TTC) staining. The protein expression levels of B‑cell lymphoma-2 (Bcl‑2), Bcl‑2‑associated X protein (Bax), cytochrome c (cyt‑c), apoptotic protease activating factor 1 (apaf‑1), caspase‑9, caspase‑7, caspase‑3, sequestosome 1 (SQSTM1) and microtubule‑associated protein 1 light chain 3 (LC3) were analyzed through western blot analysis. The results showed that 1, 5 and 10 µM DHL decreased the levels of LDH (P&lt;0.05) and increased the A490 value of TTC (P&lt;0.05). Furthermore, the expression of Bcl‑2 was enhanced, and the protein expression levels of Bax, cyt‑c, apaf‑1, caspase‑9, caspase‑7, caspase‑3, SQSTM1 and LC3 were significantly inhibited (P&lt;0.05), compared with those in the OGD/R group. These results suggested that DHL elicited protective effects against hippocampal OGD/R injury, and its underlying mechanism may be associated with inhibiting apoptosis.

Protective effects of dehydrocostuslactone on rat hippocampal slice injury induced by oxygen‑glucose deprivation/reoxygenation