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- W2023221092 abstract "l-citrulline (l-Cit) is known to increase nitric oxide (NO) production via the increase of l-arginine (l-Arg) concentration in the blood and improve endothelial dysfunction in cardiovascular diseases. However, little is known about the effects of l-Cit on cerebrovascular dysfunction. Here we showed that oral l-Cit administration prevents cerebrovascular injury following cerebral ischemia using a 20-min bilateral common carotid artery occlusion (BCCAO) mouse model. After BCCAO ischemia, mice were treated with l-Cit (50, 75, or 100 mg/kg p.o.) for 10 days once a day. l-Cit administration not only prevented neuronal cell death but also prevented capillary loss in the hippocampal region following brain ischemia. The cerebrovascular protective effect of l-Cit was associated with the restoration of endothelial nitric oxide synthase (eNOS) expression in the hippocampus. In addition, we devised a novel protocol to analyze NOx− (NO2− and NO3−) productions following l-Arg infusion using in vivo microdialysis and revealed that decreased l-Arg-induced NOx− levels were improved in the hippocampus of BCCAO mice following repeated l-Cit administration. Finally, memory deficits following brain ischemia were improved by oral administration of l-Cit. In summary, l-Cit is a potential therapeutic agent that protects cerebrovascular injury and in turn prevents neuronal cell death. Thereby, oral l-Cit administration improves cognitive deficits following brain ischemia." @default.
- W2023221092 created "2016-06-24" @default.
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- W2023221092 date "2013-07-01" @default.
- W2023221092 modified "2023-10-18" @default.
- W2023221092 title "Oral l-Citrulline administration improves memory deficits following transient brain ischemia through cerebrovascular protection" @default.
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- W2023221092 doi "https://doi.org/10.1016/j.brainres.2013.05.011" @default.
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