Background: Aging is caused by the progressive accumulation of various changes in the body, which is associated with an increase in free radicals and oxidative stress (OS). The aim of this study was to investigate the potential of caloric restriction (CR) and quercetin (QUER) in alleviating OS in aging and the involvement of the NAD (P) H quinone oxidoreductase 1 (NQO1)/SIRT1 signaling pathway in these effects.
Methods: Two age groups of male Wistar rats (eight and 20 weeks of age) were included in the study and subdivided into normal diet (ND), ND with QUER (15 mg Kg, IP), ND with CR, and ND with QUER and CR groups. The activities of catalase (CAT), paraoxonase (PON1), liver enzymes and lipid profiles, and the expression of SIRT1 and NQO1 genes were analyzed using the desired methods.
Results: We showed higher liver enzymes (aspartate aminotransferase [AST], alanine transaminase [ALT], and alkaline phosphatase [ALP]), increased atherogenic lipids, and reduced PON1 activity in 20-week-old rats compared with eight-week-old rats, and the administration of QUER and CR restored these values to the normal range. The expression of NQO1 and SIRT1 is also affected by CR and QUER. CR alone and in combination with QUER significantly raised the expression of the NQO1 and SIRT1 genes. This effect was notable in SIRT1.
Conclusions: QUER and CR together improved the detrimental effects of aging by modulating antioxidant signaling pathways, suggesting this combination is a complementary therapeutic regime for aging and age-related diseases.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11759226 | PMC |
| http://dx.doi.org/10.4103/ijpvm.ijpvm_119_23 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sulforaphane acutely activates multiple starvation response pathways.
Front Nutr
January 2025
Aging and Metabolism Research Program, Oklahoma City, OK, United States.
Sulforaphane (SFN) is an isothiocyanate derived from cruciferous vegetables that has demonstrated anti-cancer, anti-microbial and anti-oxidant properties. SFN ameliorates various disease models in rodents (e.g.
View Article and Find Full Text PDFCollaborative Effects of Caloric Restriction and Quercetin on Age-related Oxidative Stress Reduction through NQO1/Sirt1 Gene Regulation.
Int J Prev Med
December 2024
Department of Clinical Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
Background: Aging is caused by the progressive accumulation of various changes in the body, which is associated with an increase in free radicals and oxidative stress (OS). The aim of this study was to investigate the potential of caloric restriction (CR) and quercetin (QUER) in alleviating OS in aging and the involvement of the NAD (P) H quinone oxidoreductase 1 (NQO1)/SIRT1 signaling pathway in these effects.
Methods: Two age groups of male Wistar rats (eight and 20 weeks of age) were included in the study and subdivided into normal diet (ND), ND with QUER (15 mg Kg, IP), ND with CR, and ND with QUER and CR groups.
The curious case of mitochondrial sirtuin in rewiring breast cancer metabolism: Mr Hyde or Dr Jekyll?
Biochim Biophys Acta Mol Basis Dis
January 2025
Department of Public Health Genomics, Centre for DNA Repair and Genome Stability (CDRGS), Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India. Electronic address:
Mammalian sirtuins are class III histone deacetylases involved in the regulation of multiple biological processes including senescence, DNA repair, apoptosis, proliferation, caloric restriction, and metabolism. Among the mammalian sirtuins, SIRT3, SIRT4, and SIRT5 are localized in the mitochondria and collectively termed the mitochondrial sirtuins. Mitochondrial sirtuins are NAD+-dependent deacetylases that play a central role in cellular metabolism and function as epigenetic regulators by performing post-translational modification of cellular proteins.
View Article and Find Full Text PDFThe Impact of a Very-Low-Calorie Ketogenic Diet on Monocyte Subsets of Patients with Obesity: A Pilot Study.
Nutrients
January 2025
Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, 00161 Rome, Italy.
Obesity is closely linked to chronic low-grade inflammation and the development of cardio-metabolic comorbidities. Monocyte subsets, which are crucial in immune responses, have been reported to be altered in individuals with obesity, potentially exacerbating inflammation. Although very-low-calorie ketogenic diets (VLCKDs) are recognized for their efficacy in promoting weight loss and improving metabolic health, their impact on circulating monocyte subsets remains poorly understood.
View Article and Find Full Text PDFEffects of Short-Term Low Energy Availability on Metabolism and Performance-Related Parameters in Physically Active Adults.
Nutrients
January 2025
Department of Sports Medicine and Sports Nutrition, Ruhr University Bochum, 44801 Bochum, Germany.
Background/objectives: Low energy availability (LEA) can cause impaired reproductive function, bone health issues, and suppressed immune function, and may result in decreased performance and overall health status. The purpose of this study was to investigate adaptions of body composition, blood status, resting metabolic rate, and endurance performance to gain more comprehensive insights into the symptoms of LEA and the adaptive effects in the athlete population (active women (n = 11) and men (n = 11)).
Methods: Three treatments were defined as 45 (EA45, control), 30 (EA30), and 10 (EA10) kcal/kg FFM/day and randomly assigned.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!