1. Catechin treatment improves cerebrovascular flow-mediated dilation and learning abilities in atherosclerotic mice

    Catechin treatment improves cerebrovascular flow-mediated dilation and learning abilities in atherosclerotic mice

    Severe dyslipidemia and the associated oxidative stress, could accelerate the age-related decline in cerebrovascular endothelial function and cerebral blood flow (CBF), leading to neuronal loss and impaired learning abilities. We hypothesized that a chronic treatment with the polyphenol catechin would prevent endothelial dysfunction, maintain CBF responses and protect learning abilities in atherosclerotic (ATX) mice. We treated ATX (C57Bl/6-LDLR-/-hApoB+/+; 3 month-old, m/o) mice with catechin (30 mg/kg/day) for 3 months, and C57Bl/6 (WT, 3 and 6-m/o) mice were used as controls. ACh- and flow-mediated dilations (FMD) were recorded in pressurized cerebral arteries. Basal CBF ...

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