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- W1890451365 abstract "To explore the effects of celecoxib on pressure overload-induced cardiac hypertrophy (CH), cardiac dysfunction and explore the possible protective mechanisms. We surgically created abdominal aortic constrictions (AAC) in rats to induce CH. Rats with CH symptoms at 4 weeks after surgery were treated with celecoxib [2 mg/100 g body-weight(BW)] daily for either 2 or 4 weeks. Survival rate, blood pressure and cardiac function were evaluated after celecoxib treatment. Animals were killed, and cardiac tissue was examined for morphological changes, cardiomyocyte apoptosis, fibrosis, inflammation and oxidative stress. Four weeks after AAC, rats had significantly higher systolic, diastolic and mean blood pressure, greater heart weight and enlarged cardiomyocytes, which were associated with cardiac dysfunction. Thus, the CH model was successfully established. Two weeks later, animals had impaired cardiac function and histopathological abnormalities including enlarged cardiomyocytes and cardiac fibrosis, which were exacerbated 2 weeks later. However, these pathological changes were remarkably prevented by the treatment of celecoxib, independent of preventing hypertension. Mechanistic studies revealed that celecoxib-induced cardiac protection against CH and cardiac dysfunction was due to inhibition of apoptosis via the murine double mimute 2/P53 pathway, inhibition of inflammation via the AKT/mTOR/NF-κB pathway and inhibition of oxidative stress via increases in nuclear factor E2-related factor-2-mediated gene expression of multiple antioxidants. Celecoxib suppresses pressure overload-induced CH by reducing apoptosis, inflammation and oxidative stress." @default.
- W1890451365 created "2016-06-24" @default.
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- W1890451365 date "2015-10-29" @default.
- W1890451365 modified "2023-10-17" @default.
- W1890451365 title "Celecoxib prevents pressure overload‐induced cardiac hypertrophy and dysfunction by inhibiting inflammation, apoptosis and oxidative stress" @default.
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- W1890451365 doi "https://doi.org/10.1111/jcmm.12709" @default.
- W1890451365 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4717861" @default.
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- W1890451365 hasPublicationYear "2015" @default.
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