Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats

The present experiment sought to determine the effect of an eight-week, high antioxidant, whole-foods dietary supplement on Morris Water Maze performance in early and late middle-aged female rats. To improve ecological validity over past experimental studies, rats in the current study received antio...

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Main Authors: Paula M. Millin, Gina T. Rickert
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Antioxidants
Subjects:
Online Access:https://www.mdpi.com/2076-3921/8/1/1
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author Paula M. Millin
Gina T. Rickert
author_facet Paula M. Millin
Gina T. Rickert
author_sort Paula M. Millin
collection DOAJ
description The present experiment sought to determine the effect of an eight-week, high antioxidant, whole-foods dietary supplement on Morris Water Maze performance in early and late middle-aged female rats. To improve ecological validity over past experimental studies, rats in the current study received antioxidants by consuming freeze-dried organic strawberries and spinach rather than by being given food extracts or antioxidant injections. Latency and path length measures both indicated that late middle-aged rats fed the high antioxidant diet performed on a par with the younger animals earlier in training than their standard diet counterparts (<i>p</i> &lt; 0.05). Superior performance was not due to improved fitness in the antioxidant-supplemented rats. Thus, our model showed that a high antioxidant diet of relatively short duration mitigated the mild cognitive decline that was seen in control animals during the developmental period of late middle-age. The current results offer support for the promising role of dietary antioxidants in maintaining cognitive health in normal aging and extend past findings to females, who have been relatively neglected in experimental investigations. Moreover, the current model suggests that the period of transition from early to late middle age is a promising target for dietary intervention in healthy adults.
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spelling doaj.art-2df6771645684da7b061023c3f08d38f2023-08-02T05:09:25ZengMDPI AGAntioxidants2076-39212018-12-0181110.3390/antiox8010001antiox8010001Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female RatsPaula M. Millin0Gina T. Rickert1Department of Psychology, Kenyon College, Gambier, OH 43022, USAChicago College of Osteopathic Medicine, Midwestern University, Chicago, IL 60515, USAThe present experiment sought to determine the effect of an eight-week, high antioxidant, whole-foods dietary supplement on Morris Water Maze performance in early and late middle-aged female rats. To improve ecological validity over past experimental studies, rats in the current study received antioxidants by consuming freeze-dried organic strawberries and spinach rather than by being given food extracts or antioxidant injections. Latency and path length measures both indicated that late middle-aged rats fed the high antioxidant diet performed on a par with the younger animals earlier in training than their standard diet counterparts (<i>p</i> &lt; 0.05). Superior performance was not due to improved fitness in the antioxidant-supplemented rats. Thus, our model showed that a high antioxidant diet of relatively short duration mitigated the mild cognitive decline that was seen in control animals during the developmental period of late middle-age. The current results offer support for the promising role of dietary antioxidants in maintaining cognitive health in normal aging and extend past findings to females, who have been relatively neglected in experimental investigations. Moreover, the current model suggests that the period of transition from early to late middle age is a promising target for dietary intervention in healthy adults.https://www.mdpi.com/2076-3921/8/1/1agingantioxidantflavonoidmitochondrial free radical theory of agingMorris Water Mazephytochemicalsvitamin Cvitamin Espatial learning
spellingShingle Paula M. Millin
Gina T. Rickert
Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats
Antioxidants
aging
antioxidant
flavonoid
mitochondrial free radical theory of aging
Morris Water Maze
phytochemicals
vitamin C
vitamin E
spatial learning
title Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats
title_full Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats
title_fullStr Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats
title_full_unstemmed Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats
title_short Effect of a Strawberry and Spinach Dietary Supplement on Spatial Learning in Early and Late Middle-Aged Female Rats
title_sort effect of a strawberry and spinach dietary supplement on spatial learning in early and late middle aged female rats
topic aging
antioxidant
flavonoid
mitochondrial free radical theory of aging
Morris Water Maze
phytochemicals
vitamin C
vitamin E
spatial learning
url https://www.mdpi.com/2076-3921/8/1/1
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