ArticleFrontiers in endocrinology2025
Metabolomic profiling in a rat model of visual fatigue associated with liver-kidney yin deficiency syndrome.
Article in Frontiers in endocrinology, 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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Abstract
Background: Visual fatigue, commonly attributed to excessive eye use or dry conditions, is traditionally associated with deficiencies in liver and kidney yin in Chinese medicine. However, its metabolic aspects remain largely unexplored. Methods: Levothyroxine sodium combined with tail-clip stimulation induced a rat model of visual fatigue with liver and kidney yin deficiency. At 3 (M1), 7 (M2) and 14 (M3) days after induction, histopathological changes were observed, and metabolic profiling was completed using untargeted UHPLC-Q-Exactive Orbitrap/MS. Results: The rats exhibited signs of liver and kidney yin deficiency and visual fatigue on days 3 and 7, respectively. Compared to the control group, we identified 127 and 96 differential metabolites in the serum on days 7 and 14, respectively, primarily lipids and organic nitrogen compounds. Moreover, we observed disruptions in sphingolipid metabolism and signaling pathways. Conclusion: This study enriches our understanding of the metabolic profile associated with liver-kidney-yin deficiency type visual fatigue.
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