{"id":42283,"date":"2009-10-01T00:00:00","date_gmt":"2018-12-04T01:46:48","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/intervention-study-with-a-high-or-low-antioxidant-capacity\/"},"modified":"2018-12-04T02:46:48","modified_gmt":"2018-12-04T01:46:48","slug":"intervention-study-with-a-high-or-low-antioxidant-capacity","status":"publish","type":"resume","link":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/resume-scientifique\/intervention-study-with-a-high-or-low-antioxidant-capacity\/","title":{"rendered":"Intervention study with a high or low antioxidant capacity diet: effects on circulating beta-carotene."},"content":{"rendered":"<p>Abstract<br \/>\nBACKGROUND AND OBJECTIVES: A cross-sectional observation suggests that total antioxidant capacity (TAC) of the diet positively affects plasma concentrations of beta-carotene independent of beta-carotene intake. This study was carried out to investigate the effect of two dietary strategies, designed to be comparable in fruits, vegetables, fibre, alcohol and beta-carotene intake but substantially different in their TAC, on changes in antioxidant intake and antioxidant status, and in particular in circulating beta-carotene concentrations. SUBJECTS: A randomized cross-over intervention trial involving 33 healthy participants and consisting of two 14-day dietary periods (high TAC diet, HT; low TAC diet, LT) with a 14-day washout in between was conducted. RESULTS: Energy, macronutrient, dietary fibre, alcohol and beta-carotene intake was not significantly different between LT and HT, whereas intake of other carotenoids and dietary TAC was significantly higher in the HT than in the LT (P&lt;0.001). Circulating carotenoids (with the exception of alpha-carotene, which followed an inverse trend) and alpha-tocopherol decreased significantly during the LT and increased during the HT period. Among these, beta-carotene almost doubled its concentration in plasma after the HT diet. CONCLUSIONS: The increase in circulating beta-carotene along with the increase in dietary TAC suggests that plasma beta-carotene could be a marker of TAC intake rather than of beta-carotene intake itself. This may explain, in part, why beta-carotene supplementation alone has shown no benefit in chronic disease prevention and adds to a putative beneficial role of high dietary TAC diets, which merits further investigation.<\/p>\n","protected":false},"template":"","mots_cles":[],"class_list":["post-42283","resume","type-resume","status-publish","hentry"],"acf":{"adresse":"Human Nutrition Unit, Department of Public Health, University of Parma, Parma, Italy.","annee":"2009","mois":"10","numero":"63:10","page":"1220-5","auteurs":[{"ID":1388,"post_author":"0","post_date":"2018-12-03 15:58:55","post_date_gmt":"2018-12-03 14:58:55","post_content":"","post_title":"Nicoletta Pellegrini","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"nicoletta-pellegrini","to_ping":"","pinged":"","post_modified":"2018-12-03 15:58:55","post_modified_gmt":"2018-12-03 14:58:55","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/nicoletta-pellegrini\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":10755,"post_author":"0","post_date":"2018-12-03 18:27:17","post_date_gmt":"2018-12-03 17:27:17","post_content":"","post_title":"Daniele Del Rio","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"daniele-del-rio","to_ping":"","pinged":"","post_modified":"2018-12-03 18:27:17","post_modified_gmt":"2018-12-03 17:27:17","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/daniele-del-rio\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":42282,"post_author":"0","post_date":"2018-12-04 02:46:48","post_date_gmt":"2018-12-04 01:46:48","post_content":"","post_title":"Valtuena","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"valtuena","to_ping":"","pinged":"","post_modified":"2018-12-04 02:46:48","post_modified_gmt":"2018-12-04 01:46:48","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/auteur\/valtuena\/","menu_order":0,"post_type":"auteur_resume","post_mime_type":"","comment_count":"0","filter":"raw"}],"sources":[{"ID":1732,"post_author":"0","post_date":"2018-12-03 16:02:02","post_date_gmt":"2018-12-03 15:02:02","post_content":"","post_title":"Eur J Clin Nutr.","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"eur-j-clin-nutr","to_ping":"","pinged":"","post_modified":"2018-12-03 16:02:02","post_modified_gmt":"2018-12-03 15:02:02","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/fr\/source\/eur-j-clin-nutr\/","menu_order":0,"post_type":"source","post_mime_type":"","comment_count":"0","filter":"raw"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.6 (Yoast SEO v23.6) - 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