RT Journal Article T1 Plasma acylcarnitines and gut-derived aromatic amino acids as sex-specific hub metabolites of the human aging metabolome A1 Sol, Joaquim A1 Elia, Òbis A1 Mota Martorell, Natalia A1 Pradas, Irene A1 Galo Licona, Jose Daniel A1 Martín Gari, Meritxell A1 Fernández Bernal, Anna A1 Ortega Bravo, Marta A1 Mayneris Perxachs, Jordi A1 Borrás, Consuelo A1 Viña, José A1 Fuente Del Rey, María Mónica De La A1 Mate, Ianire A1 Biarnes, Carles A1 Pedraza, Salvador A1 Vilanova, Joan A1 Brugada, Ramón A1 Ramos, Rafel A1 Serena, Joaquín A1 Ramió Torrentà, Lluís A1 Pineda, Víctor A1 Daunis I Estadella, Pepus A1 Thió Henestrosa, Santiago A1 Barretina, Jordi A1 Garre Olmo, Josep A1 Portero-Otin, Manuel A1 Fernández Real, José Manuel A1 Puig, Josep A1 Jové, Mariona A1 Pamplona, Reinald AB Aging biology entails a cell/tissue deregulated metabolism that affects all levels of biological organization. Therefore, the application of “omic” techniques that are closer to phenotype, such as metabolomics, to the study of the aging process should be a turning point in the definition of cellular processes involved. The main objective of the present study was to describe the changes in plasma metabolome associated with biological aging and the role of sex in the metabolic regulation during aging. A high-throughput untargeted metabolomic analysis was applied in plasma samples to detect hub metabolites and biomarkers of aging incorporating a sex/gender perspective. A cohort of 1030 healthy human adults (45.9% females, and 54.1% males) from 50 to 98 years of age was used. Results were validated using two independent cohorts (1: n = 146, 53% females, 30–100 years old; 2: n = 68, 70% females, 19–107 years old). Metabolites related to lipid and aromatic amino acid (AAA) metabolisms arose as the main metabolic pathways affected by age, with a high influence of sex. Globally, we describe changes in bioenergetic pathways that point to a decrease in mitochondrial β-oxidation and an accumulation of unsaturated fatty acids and acylcarnitines that could be responsible for the increment of oxidative damage and inflammation characteristic of this physiological process. Furthermore, we describe for the first time the importance of gut-derived AAA catabolites in the aging process describing novel biomarkers that could contribute to better understand this physiological process but also age-related diseases. PB Wiley SN 1474-9718 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/88602 UL https://hdl.handle.net/20.500.14352/88602 LA eng NO Sol, Joaquim, et al. «Plasma Acylcarnitines and Gut‐derived Aromatic Amino Acids as Sex‐specific Hub Metabolites of the Human Aging Metabolome». Aging Cell, vol. 22, n.o 6, junio de 2023, p. e13821. https://doi.org/10.1111/acel.13821. NO Ministerio de Ciencia, Innovación y Universidades (España) NO Generalitat de Catalunya NO Instituto de Salud Carlos III NO Fundación “la Caixa” DS Docta Complutense RD 6 abr 2025