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A number of risk factors have been associated to the stroke and many strategies have been proposed in order to control them as well. Vitamin K has been largely found in brain, which suggests a possible function at that tissue. This study aimed to evaluate the potential of this vitamin on the prevention of risk factors to stroke and on cognitive function on SHRSP rats. Twelve SHRSP males, 15 weeks old, were divided into two groups (n= 6 each), receiving the vehicle-coconut oil (control group) or 40 μg of phylloquinone (treated group) during 28 days. Biological parameters, systolic blood pressure and lipid profile were evaluated. Both groups were submitted to the neurological tasks. The data was treated by Student's t test and ANOVA one-way test being P<0.05 considered significant. The phylloquinone supplementation showed a statistically significant reduction in the treated group of all parameters of lipid profile and systolic blood pressure when compared to the control group. Neurological evaluation indicated a statistically significant improvement in the performance of long term memory tests in the treated group, without similar findings in the evaluation of short memory. In sum, phylloquinone supplementation was shown to modulated lipid profile and protect neuronal suffering in this model

Effects of Vitamin K1 Supplementation on the Risk Factors to the Stroke and on Memory in Spontaneously Hypertensive Rats Stroke Prone (SHR-sp)