Influence of Long-Term Fasting on Blood Redox Status in Humans

Antioxidants
Françoise Wilhelmi de ToledoDemetrios Kouretas

Abstract

Fasting is increasingly practiced to improve health and general well-being, as well as for its cytoprotective effects. Changes in blood redox status, linked to the development of a variety of metabolic diseases, have been recently documented during calorie restriction and intermittent fasting, but not with long-term fasting (LF). We investigated some parameters of the blood redox profile in 109 subjects before and after a 10-day fasting period. Fasting resulted in a significant reduction in body weight, improved well-being and had a beneficial modulating effect on blood lipids and glucose regulation. We observed that fasting decreased lipid peroxidation (TBARS) and increased total antioxidant capacity (TAC) in plasma, concomitant with a uric acid elevation, known to be associated with fasting and did not cause gout attacks. Reduced glutathione (GSH), glutathione reductase (GR), glutathione peroxidase (GPx) and catalase in erythrocytes did not show significant changes. In addition, reduction in body weight, waist circumference, and glucose levels were associated to a reduced lipid peroxidation. Similar results were obtained by grouping subjects on the basis of the changes in their GSH levels, showing that a period of 10 days fas...Continue Reading

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Citations

Aug 29, 2020·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Franziska GrundlerFrançoise Wilhelmi de Toledo
Mar 7, 2021·Biomolecules·Wei-Zheng Zhang
Mar 30, 2021·Environmental Research·Periklis VardakasDemetrios Kouretas
Apr 12, 2021·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Stylianos RavanidisEpaminondas Doxakis
May 9, 2021·European Journal of Nutrition·Franziska GrundlerFrançoise Wilhelmi de Toledo
Sep 26, 2020·Seminars in Cancer Biology·Mona AlidadiAmirhossein Sahebkar
Oct 16, 2021·Frontiers in Nutrition·Franziska GrundlerFrançoise Wilhelmi de Toledo

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Software Mentioned

R package ‘ arsena ’
R package lmerTest

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