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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/49151

Title: Age-Related Loss in Bone Mineral Density of Rats Fed Lifelong on a Fish Oil-Based Diet Is Avoided by Coenzyme Q10 Addition
Authors: Varela-López, Alfonso
Ochoa, Julio J.
Llamas Elvira, José Manuel
López-Frías, Magdalena
Planells del Pozo, Elena María
Ramirez Tortosa, María del Carmen
Ramirez Tortosa, César Luis
Giampieri, Francesca
Battino, Maurizio
Quiles Morales, José Luis
Issue Date: 22-Feb-2017
Abstract: During aging, bone mass declines increasing osteoporosis and fracture risks. Oxidative stress has been related to this bone loss, making dietary compounds with antioxidant properties a promising weapon. Male Wistar rats were maintained for 6 or 24 months on diets with fish oil as unique fat source, supplemented or not with coenzyme Q10 (CoQ10), to evaluate the potential of adding this molecule to the n-3 polyunsaturated fatty acid (n-3 PUFA)-based diet for bone mineral density (BMD) preservation. BMD was evaluated in the femur. Serum osteocalcin, osteopontin, receptor activator of nuclear factor-κB ligand, ostroprotegerin, parathyroid hormone, urinary F2-isoprostanes, and lymphocytes DNA strand breaks were also measured. BMD was lower in aged rats fed a diet without CoQ10 respect than their younger counterparts, whereas older animals receiving CoQ10 showed the highest BMD. F2-isoprostanes and DNA strand breaks showed that oxidative stress was higher during aging. Supplementation with CoQ10 prevented oxidative damage to lipid and DNA, in young and old animals, respectively. Reduced oxidative stress associated to CoQ10 supplementation of this n-3 PUFA-rich diet might explain the higher BMD found in aged rats in this group of animals.
Sponsorship: This work was supported by the Spanish Ministry of Education and Science (AGL2008-01057) and the Autonomous Government of Andalusia (AGR832). A.V.-L. is recipient of a grant for doctors from University of Granada’s own plan.
Publisher: MDPI
Keywords: Antioxidants
Dietary fat
N-3 PUFA
Oxidative stress
Ubiquinone
URI: http://hdl.handle.net/10481/49151
ISSN: 2072-6643
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Varela-López, A.; et al. Age-Related Loss in Bone Mineral Density of Rats Fed Lifelong on a Fish Oil-Based Diet Is Avoided by Coenzyme Q10 Addition. Nutrients, 9(2): 176 (2017). [http://hdl.handle.net/10481/49151]
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