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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Intermittent Fasting Results in Tissue-Specific Changes in Bioenergetics and Redox State

Full text
Author(s):
Chausse, Bruno [1] ; Vieira-Lara, Marcel A. [1] ; Sanchez, Angelica B. [1] ; Medeiros, Marisa H. G. [1] ; Kowaltowski, Alicia J. [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Quim, Dept Bioquim, BR-01498 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: PLoS One; v. 10, n. 3 MAR 6 2015.
Web of Science Citations: 19
Abstract

Intermittent fasting (IF) is a dietary intervention often used as an alternative to caloric restriction (CR) and characterized by 24 hour cycles alternating ad libitum feeding and fasting. Although the consequences of CR are well studied, the effects of IF on redox status are not. Here, we address the effects of IF on redox state markers in different tissues in order to uncover how changes in feeding frequency alter redox balance in rats. IF rats displayed lower body mass due to decreased energy conversion efficiency. Livers in IF rats presented increased mitochondrial respiratory capacity and enhanced levels of protein carbonyls. Surprisingly, IF animals also presented an increase in oxidative damage in the brain that was not related to changes in mitochondrial bioenergetics. Conversely, IF promoted a substantial protection against oxidative damage in the heart. No difference in mitochondrial bioenergetics or redox homeostasis was observed in skeletal muscles of IF animals. Overall, IF affects redox balance in a tissue-specific manner, leading to redox imbalance in the liver and brain and protection against oxidative damage in the heart. (AU)

FAPESP's process: 13/14203-0 - Mitochondrial ionic transport in brown adipose tissue
Grantee:Marcel André Vieira Lara
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 13/07937-8 - Redoxome - Redox Processes in Biomedicine
Grantee:Ohara Augusto
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC