RT info:eu-repo/semantics/article T1 Metabolomic patterns, redox-related genes and metals, and bone fragility endpoints in the Hortega Study A1 Galvez-Fernandez, Marta A1 Rodriguez-Hernandez, Zulema A1 Grau-Perez, Maria A1 Chaves, F. Javier A1 Garcia-Garcia, Ana Barbara A1 Amigo, Nuria A1 Monleon, Daniel A1 Garcia-Barrera, Tamara A1 Gomez-Ariza, Jose L. A1 Briongos-Figuero, Laisa S. A1 Perez-Castrillon, Jose L. A1 Redon, Josep A1 Tellez-Plaza, Maria A1 Martin-Escudero, Juan C. K1 Metabolomics Bone mineral density Osteoporosis-related bone fractures Candidate genes Metals Redox AB BackgroundThe potential joint influence of metabolites on bone fragility has been rarely evaluated. We assessed the association of plasma metabolic patterns with bone fragility endpoints (primarily, incident osteoporosis-related bone fractures, and, secondarily, bone mineral density BMD) in the Hortega Study participants. Redox balance plays a key role in bone metabolism. We also assessed differential associations in participant subgroups by redox-related metal exposure levels and candidate genetic variants.Material and methodsIn 467 participants older than 50 years from the Hortega Study, a representative sample from a region in Spain, we estimated metabolic principal components (mPC) for 54 plasma metabolites from NMR-spectrometry. Metals biomarkers were measured in plasma by AAS and in urine by HPLC-ICPMS. Redox-related SNPs (N = 341) were measured by oligo-ligation assay.ResultsThe prospective association with incident bone fractures was inverse for mPC1 (non-essential and essential amino acids, including branched-chain, and bacterial co-metabolites, including isobutyrate, trimethylamines and phenylpropionate, versus fatty acids and VLDL) and mPC4 (HDL), but positive for mPC2 (essential amino acids, including aromatic, and bacterial co-metabolites, including isopropanol and methanol). Findings from BMD models were consistent. Participants with decreased selenium and increased antimony, arsenic and, suggestively, cadmium exposures showed higher mPC2-associated bone fractures risk. Genetic variants annotated to 19 genes, with the strongest evidence for NCF4, NOX4 and XDH, showed differential metabolic-related bone fractures risk.ConclusionsMetabolic patterns reflecting amino acids, microbiota co-metabolism and lipid metabolism were associated with bone fragility endpoints. Carriers of redox-related variants may benefit from metabolic interventions to prevent the consequences of bone fragility depending on their antimony, arsenic, selenium, and, possibly, cadmium, exposure levels. PB Elsevier SN 0891-5849 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/70983 UL https://uvadoc.uva.es/handle/10324/70983 LA eng NO Free Radic Biol Med. 2023 Jan;194:52-61. DS UVaDOC RD 19-nov-2024