ArticleScientific reports2026
The metabolites for muscle and osteoclast activity are indicators of femoral neck osteoporosis.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Femoral neck osteoporosis is a critical risk factor for a bedbound state, which significantly decreases overall life expectancy, if a patient falls and suffers a fracture. We performed a comprehensive blood metabolomic analysis of elderly individuals with and without femoral neck osteoporosis. Among the 129 metabolites that were identified, the abundance of six metabolites was significantly affected by femoral neck osteoporosis; decreases in phosphocreatine, malate, succinate, and histidine levels and increases in N1-methyladenosine and S-adenosylmethionine levels. The decline in muscle metabolite levels suggests that leg muscle activity is connected to the maintenance of bone mass; consistent with this, we also observed that TCA metabolite levels and leg muscle mass were decreased in patients with femoral neck osteoporosis. Interestingly, as creatine kinase is also activated in osteoclasts, the observed change in blood phosphocreatine levels reflects a change in bone homeostasis. On the other hand, as S-adenosyl-methionine serves as a donor in methylation reactions important for several biological processes, including osteoclast differentiation, increases in the levels of two methylation-related compounds (N1-methyladenosine and S-adenosyl-methionine) might indicate a link to osteoclast activity. These indicators have revealed novel aspects of the metabolic link between bone and muscle metabolism and methylation in femoral neck osteoporosis.
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