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标题：Dietary Vitamin C, E and β-Carotene Intake Does Not Significantly Affect Plasma or Salivary Antioxidant Indices and Salivary C-Reactive Protein in Older Subjects
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作者：Anna Gawron-Skarbek ; Agnieszka Guligowska ; Anna Prymont-Przymińska 等
期刊名称：Nutrients
电子版ISSN：2072-6643
出版年度：2017
卷号：9
期号：7
页码：729
DOI：10.3390/nu9070729
语种：English
出版社：MDPI Publishing
摘要：It is not clear whether habitual dietary intake influences the antioxidant or inflammatory status. The aim of the present study was to assess the impact of antioxidative vitamins C, E, and β-carotene obtained from daily food rations on plasma and salivary Total Antioxidant Capacity (TAC), uric acid and salivary C-reactive protein (CRP). The study involved 80 older subjects (66.9 ± 4.3 years), divided into two groups: group 1 (n = 43) with lower and group 2 (n = 37) with higher combined vitamins C, E and β-carotene intake. A 24-h dietary recall was obtained from each individual. TAC was assessed simultaneously with two methods in plasma (Ferric Reducing Ability of Plasma—FRAP, 2.2-diphenyl-1-picryl-hydrazyl—DPPH) and in saliva (FRAS and DPPHS test). Lower vitamin C intake corresponded to higher FRAS. There were no other correlations between vitamins C, E or β-carotene intake and antioxidant indices. Salivary CRP was not related to any antioxidant indices. FRAS was decreased in group 2 (p < 0.01) but no other group differences for salivary or for plasma antioxidant parameters and salivary CRP were found. Habitual, not extra supplemented dietary intake does not significantly affect plasma or salivary TAC and salivary CRP.
关键词：plasma total antioxidant capacity; saliva; uric acid; C-reactive protein; diet; vitamin C intake; vitamin E intake; β-carotene; DPPH; FRAP plasma total antioxidant capacity ; saliva ; uric acid ; C-reactive protein ; diet ; vitamin C intake ; vitamin E intake ; β-carotene ; DPPH ; FRAP