Caffeine-induced neuronal death in neonatal rat brain and cortical cell cultures.
Kang, SH; Lee, YA; Won, SJ; Rhee, KH; Gwag, BJ
Neuroreport, 13(15):1945-1950, 2002
We examined the potential neurotoxicity of caffeine and. Intraperitoneal administration of caffeine (50 mg/kg, 3 times a day) produced neuronal death in various brain areas of neonatal rats 24 h later. Caffeine at doses > 300 microM was also neurotoxic in murine cortical cell cultures. Caffeine-induced neuronal death was accompanied by cell body shrinkage and attenuated by anti-apoptotic drugs including cycloheximide, high potassium, and growth factors. Two necrotic pathways, excitotoxicity and oxidative stress, did not mediate caffeine neurotoxicity. The pro-apoptotic protease caspase-3 was activated to mediate neuronal death following exposure to caffeine. The present findings suggest that caffeine may cause caspase-3-dependent neuronal cell apoptosis in neonatal rat as well as.
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