Publications by authors named "Nianxia Sun"

Introduction: Pharmacological studies have shown that the rhizome of Atractylodes macrocephala Koidz. (Compositae), commonly known as atractylodes macrocephala rhizome (AMR), can modulate immunity. Nevertheless, its resources have been largely depleted, and the pharmacological activity of artificial AMR is relatively modest.

View Article and Find Full Text PDF

This study is to demonstrate the protection of atractylenolide III (AT III) on intestinal barrier dysfunction in ulcerative colitis (UC). UC model was established by 3% dextran sulfate sodium (DSS), and TNF-α was used to induce dysfunction in the intestinal epithelial barrier. TEER, FD-4 transmembrane flux and DAI were measured.

View Article and Find Full Text PDF
Article Synopsis
  • * This study investigates the reasons behind GC resistance in COPD and examines the potential of allyl isothiocyanate (AITC) to help manage this issue by regulating MRP1, which affects the disposition of harmful substances in cells.
  • * Results show that AITC can help remove the toxic compound 4-HNE that damages HDAC2 protein function, making the cells more sensitive to GC treatments again, indicating a promising new approach for managing COPD alongside existing therapies.
View Article and Find Full Text PDF

Background: Chronic obstructive pulmonary disease (COPD) is currently the third leading cause of death globally. Oxidative stress affects various molecular mechanisms and is the main driving factor of COPD. Ally isothiocyanate (AITC) is an effective component of Semen Sinapis Albae, which has favorable effects for the treatment of COPD, but its mechanism has not been fully elucidated.

View Article and Find Full Text PDF

Rhizosphere microorganisms are the main factors affecting the formation of high quality medicinal materials and promoting the accumulation of secondary metabolites. However, the composition, diversity, and function of rhizosphere microbial communities in endangered wild and cultivated (RAM) and their relationships with active component accumulation have remained unclear. In this study, high-throughput sequencing and correlation analysis were used to study the rhizosphere microbial community diversity (bacteria and fungi) of three RAM species and its correlation with the accumulation of polysaccharides, atractylone, and lactones (I, II, and III).

View Article and Find Full Text PDF

In this study, allyl isothiocyanate (AITC) was prepared as the dry powder inhalation by loading cyclodextrin metal-organic framework (CD-MOF) to enhance pulmonary delivery. β-CD-MOF and γ-CD-MOF both could be used to carry AITC with the optimal loading conditions (50˚C, :  = 1:7, 7 h). Compared with β-CD-MOF, γ-CD-MOF had more advantages in AITC loading due to its high drug loading and stable crystal morphology.

View Article and Find Full Text PDF

Long-term and constant-release osmotic-pump lorcaserin hydrochloride controlled-release tablets (OP LH CRTs) were prepared, to investigate the influencing factors of LH release and optimize the formulation. The mechanism of release of LH from OP LH CRTs in vitro was investigated. By establishing a high-efficiency method for measuring LH release in vitro, and optimizing it by single-factor and orthogonal experiments, the best formulation of OP LH CRTs was determined.

View Article and Find Full Text PDF

Chronic obstructive pulmonary disease (COPD) is an important healthcare problem worldwide. Often, glucocorticoid (GC) resistance develops during COPD treatment. As a classic hypoglycemic drug, metformin (MET) can be used as a treatment strategy for COPD due to its anti-inflammatory and antioxidant effects, but its specific mechanism of action is not known.

View Article and Find Full Text PDF
Article Synopsis
  • - AITC (allyl isothiocyanate) has shown potential in improving symptoms of chronic obstructive pulmonary disease (COPD) by regulating lipid metabolism and reducing inflammation.
  • - In studies involving COPD rat models and 16HBE cell stimulation, AITC treatment resulted in better lung function, reduced inflammatory markers (IL-1 β and TNF- α), and improved lipid metabolism, compared to control groups.
  • - The beneficial effects of AITC were linked to its ability to activate LXR pathways, which reversed the negative impacts of cigarette smoke exposure on lipid metabolism and macrophage inflammation, indicating a specific molecular mechanism of action.
View Article and Find Full Text PDF

Water-extracted arabinoxylans (WEAXs) of different varieties and structures have important effects on wheat end products. However, the functional performances of WEAXs, particularly relating to prebiotic potential, are not yet clear. The present study compared the structural features, physicochemical properties, and prebiotic potential of WEAXs from three wheat varieties, which were used as special wheat varieties to make steamed buns, bread flour, and noodles.

View Article and Find Full Text PDF

Arabinoxylans (AXs) treated with enzymes, pentosanase (Pn) and glucose oxidase (GOX) not only offer a promising way to improve wheat product quality but also change their prebiotic potentials by modifying the structures of AXs. In the present study, the different crosslinking degrees of water-extracted arabinoxylans (WEAXs) treated with GOX alone or in combination with Pn + GOX were examined. The structural features and candidate prebiotic capabilities were investigated.

View Article and Find Full Text PDF

The nutritional components in oat and tartary buckwheat had been assessed to have cholesterollowering effects. However, The effect of oat and tartary buckwheat based-food (OF) on cholesterol-lowering and gut microbiota in hypercholesterole hamsters was still limited studied because they are usually consumed in whole gran as well as after being processed. In this study, normal diets, high fat diet (HFD) with/without OF were fed to hamsters for 30 days respectively and growth parameters, metabolic parameters, and gut microbiota were investigated, respectively.

View Article and Find Full Text PDF