Publications by authors named "Jun-xiang Ruan"

Ferulic acid (FA), a naturally derived phenolic compound, has antioxidant and antidepressant-like effects. It is still a challenge to study its mechanism due to the complexity of the pathophysiology of depression. In this study, ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS) was used to perform metabolomics studies based on biochemical changes in differentiated rat pheochromocytoma (PC12) cells treated with corticosterone-induced neurological damage after FA treatment.

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Danggui-Sini Decoction (DSD) is one of the most widely used traditional Chinese medicine formulae (TCMF) for treating various diseases caused by cold coagulation and blood stasis due to its effect of nourishing blood to warm meridians in clinical use. However, studies of the mechanism of how it dispels blood stasis and its compatible regularity are challenging because of the complex pathophysiology of blood stasis syndrome (BSS) and the complexity of DSD, with multiple active ingredients acting on different targets. Observing variations of endogenous metabolites in rats with BSS after administering DSD may further our understanding of the mechanism of BSS and the compatible regularity of DSD.

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Article Synopsis
  • Liver fibrosis, which can lead to serious liver diseases like cirrhosis and hepatocellular carcinoma, is often a result of various chronic liver conditions.
  • The traditional Chinese medicine, Corydalis saxicola Bunting (CS), shows promise in protecting the liver, but more research is needed to uncover its mechanisms.
  • Using a combination of H-NMR-based metabonomics and network pharmacology, this study identified specific metabolic changes and potential targets in liver fibrosis that CS affects, suggesting that compounds like chelerythrine and sanguinarine may be key to its anti-fibrosis effects.
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Chronic liver injury has been shown to cause liver fibrosis due to the sustained pathophysiological wound healing response of the liver, and eventually progresses to cirrhosis. The total alkaloids of Corydalis saxicola Bunting (TACS), a collection of important bioactive ingredients derived from the traditional Chinese folk medicine Corydalis saxicola Bunting (CS), have been reported to have protective effects on the liver. However, the underlying molecular mechanisms need further elucidation.

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Corydalis saxicola Bunting (CS), a traditional Chinese folk medicine, has been effectively used for treating liver disease in Zhuang nationality in South China. However, the exact hepatoprotective mechanism of CS was still looking forward to further elucidation by far. In present work, metabonomic study of biochemical changes in the serum of carbon tetrachloride (CCl4)-induced acute liver injury rats after CS treatment were performed using proton nuclear magnetic resonance ((1)H-NMR) analysis.

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To study the anti-coagulant effect and influence of danggui Sini decoction (DSD) on rat's plasma endogenous metabolites by animal experiment and ¹H-NMR based metabolomics method. After intragastric administration of Danggui Sini Decoction for 7 days, Plasma thrombin time (TT) was measured. Rat plasma metabolic fingerprint in two groups was analyzed using ¹H-NMR, based on which the principal component analysis( PCA) and orthogonal partial least-squares discriminant analysis(OPLS-DA) models for metabonomic analysis.

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Objective: To investigate the chemical constituents changes of Citrus reticulata pericarp before and after processing with vinegar,and to provide scientific basis for the study of active components in Citrus reticulata pericarp.

Methods: Citrus reticulata pericarp was processed with vinegar according to the Zhongyao Paozhixue Cidian. The extracts of unprocessed and processed Citrus reticulata pericarp were detected by HPLC.

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Article Synopsis
  • Camellia chrysantha (CCT) is an ornamental plant known for its antioxidant properties, often consumed as tea for health benefits.
  • Researchers utilized a composition-activity relationship strategy with advanced analytical techniques to identify the key antioxidant components in CCT, discovering 16 significant variables that contribute to its scavenging activity.
  • A new liquid chromatography-electrospray ionization-mass spectrometry method was developed to quantitatively analyze six specific antioxidants in CCT, setting a foundation for quality control and further exploration of active compounds in medicinal plants.
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