PMID- 33255520 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201226 IS - 2227-9059 (Print) IS - 2227-9059 (Electronic) IS - 2227-9059 (Linking) VI - 8 IP - 12 DP - 2020 Nov 25 TI - Antioxidant/Anti-Inflammatory Effects of Caloric Restriction in an Aged and Obese Rat Model: The Role of Adiponectin. LID - 10.3390/biomedicines8120532 [doi] LID - 532 AB - Caloric restriction (CR) represents a powerful intervention for extending healthspan and lifespan in several animal models, from yeast to primates. Additionally, in humans, CR has been found to induce cardiometabolic adaptations associated with improved health. In this study, we evaluated in an aged and obese rat model the effect of long-term (6 months) caloric restriction (-40%) on the oxidative/inflammatory balance in order to investigate the underlining mechanisms. In plasma, we analyzed the oxidative balance by photometric tests and the adiponectin/tumor necrosis factor-alpha-induced gene/protein 6 (TSG-6) levels by Western blot analysis. In the white adipose tissue, we examined the protein levels of AdipoR1, pAMPK, NFkappaB, NRF-2, and glutathione S-tranferase P1 by Western blot analysis. Our results clearly showed that caloric restriction significantly improves the plasmatic oxidative/inflammatory balance in parallel with a major increase in circulating adiponectin levels. Additionally, at the level of adipose tissue, we found a positive modulation of both anti-inflammatory and antioxidant pathways. These adaptations, induced by caloric restriction, with the achievement of normal weight, suggest that inflammatory and redox imbalance in obese aged rats appear to be more linked to obesity than to aging. FAU - La Russa, Daniele AU - La Russa D AUID- ORCID: 0000-0003-1887-2854 AD - Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy. AD - LARSO (Analysis and Research on Oxidative Stress Laboratory), University of Calabria, 87036 Rende, Italy. FAU - Marrone, Alessandro AU - Marrone A AD - LARSO (Analysis and Research on Oxidative Stress Laboratory), University of Calabria, 87036 Rende, Italy. AD - Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy. FAU - Mandala, Maurizio AU - Mandala M AUID- ORCID: 0000-0003-3736-0205 AD - Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy. FAU - Macirella, Rachele AU - Macirella R AUID- ORCID: 0000-0003-4121-9837 AD - Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy. FAU - Pellegrino, Daniela AU - Pellegrino D AUID- ORCID: 0000-0002-9815-5195 AD - LARSO (Analysis and Research on Oxidative Stress Laboratory), University of Calabria, 87036 Rende, Italy. AD - Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy. LA - eng PT - Journal Article DEP - 20201125 PL - Switzerland TA - Biomedicines JT - Biomedicines JID - 101691304 PMC - PMC7761007 OTO - NOTNLM OT - adiponectin OT - caloric restriction OT - inflammation OT - oxidative balance OT - plasma OT - white adipose tissue COIS- The authors declare no conflict of interest. EDAT- 2020/12/02 06:00 MHDA- 2020/12/02 06:01 PMCR- 2020/11/25 CRDT- 2020/12/01 01:09 PHST- 2020/10/31 00:00 [received] PHST- 2020/11/21 00:00 [revised] PHST- 2020/11/23 00:00 [accepted] PHST- 2020/12/01 01:09 [entrez] PHST- 2020/12/02 06:00 [pubmed] PHST- 2020/12/02 06:01 [medline] PHST- 2020/11/25 00:00 [pmc-release] AID - biomedicines8120532 [pii] AID - biomedicines-08-00532 [pii] AID - 10.3390/biomedicines8120532 [doi] PST - epublish SO - Biomedicines. 2020 Nov 25;8(12):532. doi: 10.3390/biomedicines8120532.