Toll-like receptor 5 deficiency diminishes doxorubicin-induced acute cardiotoxicity in mice.
Model: Doxorubicin-induced acute cardiotoxicity: single intraperitoneal doxorubicin 15 mg/kg with sacrifice at 3 days, plus a 7-day survival experiment; in vitro neonatal rat cardiomyocytes exposed to doxorubicin 1 microM for 24 h
TLR5 expression rose after doxorubicin. TLR5 knockout attenuated weight loss, preserved heart weight to tibia length and ejection fraction, lowered CK-MB and LDH, and reduced superoxide, 4-HNE, MDA, NADPH oxidase activity, NOX2, TNF-alpha, IL-1beta, NF-kappaB translocation, Bax and TUNEL positivity…
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