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Barrett, The Honors College at Arizona State University proudly showcases the work of undergraduate honors students by sharing this collection exclusively with the ASU community.

Barrett accepts high performing, academically engaged undergraduate students and works with them in collaboration with all of the other academic units at Arizona State University. All Barrett students complete a thesis or creative project which is an opportunity to explore an intellectual interest and produce an original piece of scholarly research. The thesis or creative project is supervised and defended in front of a faculty committee. Students are able to engage with professors who are nationally recognized in their fields and committed to working with honors students. Completing a Barrett thesis or creative project is an opportunity for undergraduate honors students to contribute to the ASU academic community in a meaningful way.

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Impact of Sumac on Lowering Oxidative stress as it pertains to Dementia

Description
Background: To determine the effect of sumac on vasodilation and oxidative stress in vascular tissue. This study hypothesized that sumac would increase vasodilation and reduce vascular damage in vascular tissue taken from rats to improve symptoms and risk of vascular dementia.
Methods: Male Sprague-Dawley rats were fed a chow diet…

Background: To determine the effect of sumac on vasodilation and oxidative stress in vascular tissue. This study hypothesized that sumac would increase vasodilation and reduce vascular damage in vascular tissue taken from rats to improve symptoms and risk of vascular dementia.
Methods: Male Sprague-Dawley rats were fed a chow diet or a high fat diet (HFD) for ten weeks. Endothelium-dependent vasodilation was measured in isolated mesenteric arterioles that were treated with or without 80 µg/ml sumac in the superfusate throughout the experiment.
Results: Sumac did not improve vasodilation or in ex vivo arteries from rats fed a high fat diet. There were trends of improved vasodilation in sumac treated vessels from high fat diet rats, but sumac did not significantly improve vasodilation. In rats fed a chow diet, sumac prevented phenylephrine (PE) constriction in the vascular tissue. The most likely cause for this is the presence of Gallic acid in sumac. Another possible explanation is the presence of nitrates in sumac which may have prevented PE vasoconstriction.
Conclusions: Sumac did not significantly improve vasodilation in isolated arteries from rats fed a high fat diet. The results are inconclusive for the improvement of symptoms or risk of vascular dementia. In vivo treatment with sumac should be tested as results may differ.
ContributorsLambries, Lorne Flores (Co-author) / Sweazea, Karen (Co-author, Thesis director) / Gonzales, Rayna (Co-author, Committee member) / Basile, Anthony (Co-author, Committee member) / Barbares, Julia (Co-author) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05