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  • Ryan posted an update 1 year, 1 month ago

    Feiyangchangweiyan capsule (FYC) is a traditional Chinese medicine formulation used in the clinical treatment of acute and chronic gastroenteritis and bacterial dysentery. However, the effect of FYC on ulcerative colitis (UC) and the mechanism thereof remains unknown.

    To investigate the protective effect of FYC on UC mice induced by dextran sulfate sodium and illustrate the potential mechanism of this effect.

    Here, we established a model of UC mice by dextran sulfate sodium and administered with FYC. The disease activity index (DAI), colon length, myeloperoxidase (MPO) content in serum, pathological structure and ultrastructural changes, and inflammatory cell infiltration of colon tissue were evaluated. Transcriptome and 16S rDNA sequencing were employed to illuminate the mechanism of FYC in the protection of UC mice.

    FYC significantly alleviates the pathological damage and the infiltration of inflammatory cells in colon tissue of dextran sulfate sodium induced UC mice, rescues shortened colon length, reduces DAI score, MPO content in serum, and pro-inflammatory factors including IL-1β, IL-6, CCL11, MCP-1 and MIP-2, and increases anti-inflammatory factors such as IL-10. Transcriptomics revealed that Oncostatin M (OSM) and its receptor (OSMR) are the critical pathway for UC treatment by FYC. OSM and OSMR increased in UC mice compared to control mice, and decreased with FYC, which was verified via measurement of OSM and OSMR mRNA and protein levels. Furthermore, we observed that FYC modulates intestinal microbiome composition (e.g., the proportion of Barnesiella/Proteobacteria) by affecting the inflammatory factors.

    FYC exerts an effect on UC by inhibiting the OSM/OSMR pathway and regulating inflammatory factors to improve the intestinal flora.

    FYC exerts an effect on UC by inhibiting the OSM/OSMR pathway and regulating inflammatory factors to improve the intestinal flora.

    Cisplatin (DDP) is the first-in-class drug for advanced and non-targetable non-small-cell lung cancer (NSCLC). A recent study indicated that DDP could slightly induce non-apoptotic cell death ferroptosis, and the cytotoxicity was promoted by ferroptosis inducer. The agents enhancing the ferroptosis may therefore increase the anticancer effect of DDP. Several lines of evidence supporting the use of phytochemicals in NSCLC therapy. Ginkgetin, a bioflavonoid derived from Ginkgo biloba leaves, showed anticancer effects on NSCLC by triggering autophagy. Ferroptosis can be triggered by autophagy, which regulates redox homeostasis. Thus, we aimed to elucidate the possible role of ferroptosis involved in the synergistic effect of ginkgetin and DDP in cancer therapy.

    The promotion of DDP-induced anticancer effects by ginkgetin was examined via a cytotoxicity assay and western blot. Ferroptosis triggered by ginkgetin in DDP-treated NSCLC was observed via a lipid peroxidation assay, a labile iron pool assay, westernial membrane potential (MMP) loss and apoptosis in cultured NSCLC cells. Furthermore, blocking ferroptosis reversed the ginkgetin-induced inactivation of Nrf2/HO-1 as well as the elevation of ROS formation, MMP loss, and apoptosis in DDP-treated NSCLC cells.

    This study is the first to report that ginkgetin derived from Ginkgo biloba leaves promotes DDP-induced anticancer effects, which can be due to the induction of ferroptosis.

    This study is the first to report that ginkgetin derived from Ginkgo biloba leaves promotes DDP-induced anticancer effects, which can be due to the induction of ferroptosis.

    Acacetin 7-O-β-D-glucoside (tilianin) is a major constituent of Agastache rugosa, a traditional medicine that has long been used for the treatment of gastrointestinal disorders. Tilianin has a wide variety of pharmacological properties such as cardioprotective, neuroprotective, and anti-atherogenic activities. We recently discovered that tilianin has the ability to suppress MUC5AC expression in vitro. In addition, we have established an in vivo model of allergic asthma using house dust mite (HDM) that can be applied to tilianin.

    We investigated the effects of tilianin on airway inflammation in a HDM-induced asthma mouse model and associated mechanisms.

    Tilianin was treated in splenocytes cultured in Th0 condition and HDM-stimulated bone marrow-derived dendritic cells (BMDCs), and their mRNA expression and cytokines production were determined by quantitative real-time PCR and ELISA. To evaluate the effects of tilianin in an allergic asthma model, mice were sensitized and challenged with HDM. Tilianin wasendritic cells.

    Taken together, these results suggest that tilianin attenuates HDM-induced allergic airway inflammation by inhibiting Th2-mediated inflammation through the selective inhibition of the IRF4-IL-33 axis in dendritic cells.

    Pseudo-allergic reactions are potentially fatal hypersensitivity responses caused by mast cell activation. α-linolenic acid (ALA) is known for its anti-allergic properties. However, its potential anti-pseudo-allergic effects were not much investigated.

    To investigate the inhibitory effects of ALA on IgE-independent allergy in vitro, and in vivo, as well as the mechanism underlying its effects.

    The anti-anaphylactoid activity of ALA was evaluated in passive cutaneous anaphylaxis reaction (PCA) and systemic anaphylaxis models. Calcium imaging was used to assess intracellular Ca

    mobilization. The release of cytokines and chemokines was measured using enzyme immunoassay kits. Western blot analysis was conducted to investigate the molecules of Lyn-PLCγ-IP3R-Ca

    and Lyn-p38/NF-κB signaling pathway.

    ALA (0, 1.0, 2.0, and 4.0mg/kg) dose-dependently reduced serum histamine, chemokine release, vasodilation, eosinophil infiltration, and the percentage of degranulated mast cells in C57BL/6 mice. In addition, Aed diseases such as urticaria.

    Insulin resistance (IR) and lipotoxicity were evidenced as the major nonalcoholic steatohepatitis (NASH) initiators. check details However, absence of the effective treatment against NASH progression raised our aim to discover a new promising insulin modulator and NSH preventer.

    Our study aimed to extract and prepare a nitriles rich fraction (NRF) from Diceratella elliptica (DC.) Jonsell, investigate its insulin-sensitizing & anti-NASH potentialities and address its molecular targets in IR-NASH pathogenesis.

    NRF was prepared using natural autolysis method and compounds were identified. Then, seventy male Wistar rats were feed high fat diet (HFD) or normal pellets for 35 days. In day 14th, HFD rats were injected by Streptozotocin (STZ) once and treatment was started in day 21st with either NRF (30, 60 and 120mg/kg; orally) or pioglitazone (PioG) (10mg/kg; i.p) beside HFD. While, NRF-alone rats were treated with NRF (120mg/kg; orally) beside the normal pellets. Body weight, glucose homeostasis, hepatopathological examinations were performed.

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