ArticleCartilage2025
Cartilage Redox Balance Is Influenced by Substrate Availability.
Article in Cartilage, 2025. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
PurposeThe mechanobiological response of cartilage redox balance might change in response to altered substrate availability. The purpose of this study is to investigate effects of key metabolic substrates (glucose, glutamine, and oxygen) on the mechanoresponsiveness of cartilage redox balance using a label-free imaging technique that measures autofluorescence from endogenous redox cofactors.FindingsCompared with room oxygen tension, low oxygen tension had higher autofluorescence intensity in green (FAD) channel after a single sub-failure tensile load. Cartilage explants cultured in high glucose medium with glutamine supply had higher autofluorescence intensity in both channels (FAD and NADH/NADPH) compared with low glucose with glutamine group or high glucose without glutamine group, while no difference was observed between the latter 2 groups.ConclusionsLow oxygen tension or high glucose culture medium with glutamine supply increases the mechanoresponsiveness of cartilage redox balance induced by sub-failure mechanical loading. Glutamine appears to partially serve as a glucose substitute in this process.
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