PMID- 23187008 OWN - NLM STAT- MEDLINE DCOM- 20130806 LR - 20211021 IS - 1976-670X (Electronic) IS - 1976-6696 (Print) IS - 1976-6696 (Linking) VI - 45 IP - 11 DP - 2012 Nov TI - Effects of chronic caloric restriction on kidney and heart redox status and antioxidant enzyme activities in Wistar rats. PG - 671-6 AB - Caloric restriction (CR) has been associated with health benefits and these effects have been attributed, in part, to modulation of oxidative status by CR; however, data are still controversial. Here, we investigate the effects of seventeen weeks of chronic CR on parameters of oxidative damage/ modification of proteins and on antioxidant enzyme activities in cardiac and kidney tissues. Our results demonstrate that CR induced an increase in protein carbonylation in the heart without changing the content of sulfhydryl groups or the activities of superoxide dismutase and catalase (CAT). Moreover, CR caused an increase in CAT activity in kidney, without changing other parameters. Protein carbonylation has been associated with oxidative damage and functional impairment; however, we cannot exclude the possibility that, under our conditions, this alteration indicates a different functional meaning in the heart tissue. In addition, we reinforce the idea that CR can increase CAT activity in the kidney. FAU - Dutra, Marcio Ferreira AU - Dutra MF AD - Departamento de Bioquimica, Instituto de Ciencias Basicas da Saude, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. marciodutra5@yahoo.com.br FAU - Bristot, Ivi Juliana AU - Bristot IJ FAU - Batassini, Cristiane AU - Batassini C FAU - Cunha, Nubia Broetto AU - Cunha NB FAU - Vizuete, Adriana Fernanda Kuckartz AU - Vizuete AF FAU - de Souza, Daniela Fraga AU - de Souza DF FAU - Moreira, Jose Claudio Fonseca AU - Moreira JC FAU - Goncalves, Carlos-Alberto AU - Goncalves CA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Korea (South) TA - BMB Rep JT - BMB reports JID - 101465334 RN - 0 (Antioxidants) RN - EC 1.11.1.6 (Catalase) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Animals MH - Antioxidants/*metabolism MH - *Caloric Restriction MH - Catalase/metabolism MH - Heart/*physiopathology MH - Kidney/*physiopathology MH - Male MH - Oxidation-Reduction MH - *Oxidative Stress MH - Protein Carbonylation MH - Rats MH - Rats, Wistar MH - Superoxide Dismutase/metabolism PMC - PMC4133804 EDAT- 2012/11/29 06:00 MHDA- 2013/08/07 06:00 PMCR- 2012/12/01 CRDT- 2012/11/29 06:00 PHST- 2012/11/29 06:00 [entrez] PHST- 2012/11/29 06:00 [pubmed] PHST- 2013/08/07 06:00 [medline] PHST- 2012/12/01 00:00 [pmc-release] AID - BMB-45-671 [pii] AID - 10.5483/bmbrep.2012.45.11.094 [doi] PST - ppublish SO - BMB Rep. 2012 Nov;45(11):671-6. doi: 10.5483/bmbrep.2012.45.11.094.