RT Journal Article T1 Coenzyme Q10 levels associated with cognitive functioning and executive function in older adults A1 Fernández-Portero, Cristina A1 García Amián, Josué A1 De la Bella, Rocío A1 López-Lluch, Guillermo A1 Alarcón, David K1 Coenzyme Q10 K1 Cognitive functioning K1 Executive function K1 Oxidative stress AB Brain deterioration with age is associated with inflammation and oxidative stress that result in structural and functional changes. Recent studies have indicated that coenzyme Q10 (CoQ10) is associated with neurological oxidative stress and cognitive impairment. Studies with older people have shown a relationship between neurodegenerative diseases and CoQ10 levels. However, no studies have analyzed the relationship between CoQ10 and cognitive functioning in older adults. The aim of this study was to analyze the association between CoQ10 and cognitive functioning in an older adult sample, controlling for other factors that may influence aging, such as the level of physical activity and nutritional status. The sample consisted of 64 older adults aged 65–99 years (76.67 ± 8.16 years), among whom 48 were women (75%). The participants were recruited among those who attended community centers to voluntarily participate in leisure activities. According to previous studies, physical activity and nutritional status are positively associated with cognitive functioning. However, the main finding of this study was that plasma CoQ10, controlling for other measures, was significantly associated with cognitive functioning and executive function. The current findings suggest that a decline in cognitive capacities may be related to reduced antioxidant defenses, as reflected by low CoQ10 levels in older adults. PB Oxford Academic YR 2022 FD 2022-07-31 LK https://hdl.handle.net/10433/22325 UL https://hdl.handle.net/10433/22325 LA en NO Fernández-Portero C, Amián JG, Bella R, López-Lluch G, Alarcón D. Coenzyme Q10 Levels Associated With Cognitive Functioning and Executive Function in Older Adults. J Gerontol A Biol Sci Med Sci. 2023 Jan 26;78(1):1-8. doi: 10.1093/gerona/glac152. PMID: 35908233. NO Department of Social Anthropology, Psychology and Public Health DS RIO RD May 9, 2026