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Open AccessArticle

Diet and Oxidative Status. The Dietary Pattern and Urinary 8-Isoprostane in Healthy Spanish Women

1
Neuroendocrinology and Nutrition Research Group. Department of Health Science, University of Jaén, 23071 Jaén, Spain
2
Department of Physiology and Biochemistry of the Animal Nutrition, Estación Experimental del Zaidín. Spanish Council for Scientific Research (CSIC), Armilla, 18100 Granada, Spain
*
Author to whom correspondence should be addressed.
Antioxidants 2019, 8(8), 271; https://doi.org/10.3390/antiox8080271
Received: 28 June 2019 / Revised: 21 July 2019 / Accepted: 30 July 2019 / Published: 2 August 2019
(This article belongs to the Special Issue Antioxidants in Olive Oils)
The Mediterranean diet is associated with a low incidence of physiologic and metabolic non-communicable diseases such as hypertension, obesity, and insulin resistance. These chronic diseases are closely related to oxidative status, which is determined by the balance between oxidant and antioxidant levels. The Mediterranean diet is rich in foods with important antioxidant properties, such as fruits and extra virgin olive oil. The aim of this work was to establish the relationship between dietary patterns, the total intake of polyphenols, and the levels of 8-isoprostanes in urine, as a marker of lipid peroxidation, in a group of healthy Spanish women. The main sources of dietary polyphenols were fruits, vegetables, pulses, nuts, and extra virgin olive oil. There was a significant and positive correlation between the estimated intake of polyphenols, total polyphenols excreted in urine, adherence to the Mediterranean diet, and the intake of specific food groups. A positive correlation was established between the total polyphenols in urine and the intake of raw extra virgin olive oil. However, a negative correlation was established between the amount of 8-isoprostanes in urine, total intake of polyphenols, adherence to the Mediterranean diet, and the intake of fruits and nuts. These results indicate an association between oxidative status and the intake of foods that are typical of the Mediterranean diet, in healthy women. Furthermore, the results demonstrate the use of urine 8-isoprostanes as a marker of adherence to the Mediterranean diet. View Full-Text
Keywords: Mediterranean diet; extra virgin olive oil; urine 8-isoprostanes Mediterranean diet; extra virgin olive oil; urine 8-isoprostanes
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MDPI and ACS Style

Ruiz, N.; Segarra, A.B.; Lara, L.; Ramírez-Sánchez, M.; Prieto, I. Diet and Oxidative Status. The Dietary Pattern and Urinary 8-Isoprostane in Healthy Spanish Women. Antioxidants 2019, 8, 271.

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