White crystalline powder
Radix Bupleuri /Bupleurum falcatum
Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
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For Reference Standard and R&D, Not for Human Use Directly.
provides coniferyl ferulate(CAS#:58558-09-1) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate
Allergic rhinitis (AR) is a type I hypersensitivity immune response and is a common chronic allergic respiratory disorder characterized by one or more nasal symptoms. Despite many studies on AR therapy, the drugs of treatment for AR remain limited in effect. In the present study, we aimed to elucidate the effects of saikosaponin A (SSA) on nasal inflammation, T helper (Th)2 and Th17 cytokines, retinoic acid-related orphan nuclear receptor (ROR)-γt, signal transducer and activator of transcription (STAT)3, and nuclear factor (NF)-κB signalings in ovalbumin (OVA)-induced AR mice model. OVA-induced AR mice exhibited increase in nasal symptoms, histological alteration, OVA-specific immunoglobulin (Ig)E/IgG1, ROR-γt, STAT3 and NF-κB signalings. However, the administration of SSA significantly decreased allergic symptoms including nasal rubbing and sneezing. Additionally, histological alterations such as mucosa layer thickness, goblet cell hyperplasia, eosinophils and mast cell infiltration in nasal tissues dramatically improved by treatment with SSA. Also, SSA treatment decreased the levels of OVA-specific IgE/IgG1 in serum and the levels of Th2 and Th17 cytokines such as interleukin (IL)-6 and IL-17 in nasal lavage fluid (NALF). Moreover, SSA inhibited the activation of transcription factor ROR-γt, STAT3 and phosphorylated STAT3 in both NALF and lung. Futher, SSA could also significantly inhibit the expressions of NF-κB p65 and phosphorylated NF-κB p65 in NALF and lung. These present results suggested that SSA may attenuate OVA-induced allergic rhinitis through regulating the expression of IL-6/ROR-γt/STAT3/IL-17/NF-κB signaling. The results indicate that SSA may be used as a therapeutic candidate for allergic rhinitis disease.
Copyright © 2019 Elsevier B.V. All rights reserved.
Allergic rhinitis; IL-6/ROR-γt/STAT3/IL-17/NF-κB signalings; OVA-Specific IgE/IgG1; Saikosaponin A; Th2/Th17 cytokines
Saikosaponin A ameliorates nasal inflammation by suppressing IL-6/ROR-γt/STAT3/IL-17/NF-κB pathway in OVA-induced allergic rhinitis.
Piao CH1, Song CH2, Lee EJ3, Chai OH4.
2020 Jan 5
5-Fluorouracil (5-FU)-induced intestinal mucositis (IM) is one of the most common oncological problem. It involves serious clinical consequences such as diarrhea, erythematous lesions of mucosa, and eventually development of ulcers accompanied by severe pain. The aim of the present study was to demonstrate the mucoprotective effects of Saikosaponin-A in 5-FU-induced intestinal mucositis in mice. Mucositis was induced in BALB/c mice by intraperitoneal injection of 5-FU (50 mg/kg/day) for three consecutive days and IM was assessed by both behavioral and histochemical analysis. While, Saikosaponin-A (1, 5, 10 mg/kg/day) was administered 1 h before 5-FU injection for consecutive seven days. Pre-treatment of Saikosaponin-A significantly ameliorated the severity of mucositis reflected as food intake, body weight loss, severity of diarrhea and mortality rate in a dose depended manner as compared to mice treated with 5-FU. Moreover, histopathological analysis furthered reinforced the mucoprotective potential of Saikosaponin-A against 5-FU-induced intestinal abnormalities referred as villus atrophy, mitotic crypt stem cells damage, inflammatory cells infiltration, vacuolization and edema. Furthermore, Saikosaponin-A administration strongly inhibited pro-inflammatory mediators (TNF-α, COX-2, IL-1β and IL-6) and apoptotic markers (p-JNK, Casp-3). Saikosaponin-A pre-treatment significantly reduced the production of nitric oxide (NO) in intestinal tissue, inhibited acetic acid-induced Evans blue vascular permeability. The Siaikosaponin-A treatment markedly enhanced the anti-oxidants enzymes (Nrf2, HO-1, SOD, GSH, GST and Catalase), while decreased the oxidative stress markers i.e. Malonaldehde (MDA). Hence, these data suggest that Saikosaponin-A maybe a potential candidate for the treatment of chemotherapy-induced intestinal mucositis.
Copyright © 2019 Elsevier Inc. All rights reserved.
5-Flourouracil; Cytokines; Intestinal mucositis; Oxidative stress; Saikosaponin-A
Mucoprotective effects of Saikosaponin-A in 5-fluorouracil-induced intestinal mucositis in mice model.
Ali J1, Khan AU1, Shah FA2, Ali H1, Islam SU3, Kim YS4, Khan S5.
2019 Dec 15;
To study the effects of saikosaponin b2( SS-b2) on inflammatory factors and energy metabolism against lipopolysaccharide/galactosamine( LPS/Gal N) induced acute liver injury in mice. Mice were randomly divided into normal group( equal amount of normal saline),model group( 100 g·kg~(-1) LPS and 400 mg·kg~(-1) Gal N),low,medium,high dose group of SS-b2( SS-b25,10,20 mg·kg~(-1)·d-1) and positive control group( dexamethasone,10 mg·kg~(-1)). All of the groups except for the normal group were treated with LPS/Gal N though intraperitoneally injection to establish the acute liver injury model. The organ indexes were calculated. The levels of serum transaminases( ALT and AST) and the activities of ATPase( Na+-K+-ATPase,Ca2+-Mg2+-ATPase) in liver were detected. The activity of tumor necrosis factor-α( TNF-α),interleukin-1β( IL-1β) and interleukin-6( IL-6) were determined by the enzyme-linked immunosorbent assay( ELISA). The contents of lactate dehydrogenase( LDH) in liver were determined by micro-enzyme method. HE staining was used to observe the histopathological changes of the liver. Histochemical method was used to investigate the protein expression of liver lactate dehydrogenase-A( LDH-A). The protein expressions of Sirt-6 and NF-κB in the liver were detected by Western blot. According to the results,compared with the model group,there were significant changes in organ indexes in the high-dose group of SS-b2( P<0. 05). The level of ALT,AST,TNF-α,IL-1β,IL-6 and the activities of LDH in serum of mice with liver injury were significantly reduced in the medium and high dose groups of SS-b2( P<0. 01). With the increase of the concentration of SS-b2,the range of hepatic lesions and the damage in mice decreased. The activities of Na+-K+-ATPase and Ca2+-Mg2+-ATPase in liver of mice were significantly enhanced in each dose group( P<0. 01). The expression of NF-κB in liver tissues was significantly down-regulated in the medium and high dose group( P<0. 01). Meanwhile,the expression of Sirt-6 protein in the liver of mice with acute liver injury was significantly increased in each dose group( P<0. 01).In summary,SS-b2 has a significant protective effect on LPS/Gal N-induced acute liver injury in mice,which may be related to the down-regulation of NF-κB protein expression and up-regulation of Sirt-6 protein expression to improve inflammatory injury and energy metabolism.
NF-κB; Sirt-6; acute liver injury; energy metabolism; inflammation; saikosaponin b2
[Effects of saikosaponin b_2 on inflammation and energy metabolism in mice with acute liver injury induced by LPS/GalN].
You M1, Li RF1, Gao ZH1, Li YY1, Liu WY1, Wang JG1, Wang HW2, Li SQ1.
Saikosaponin B4 is a member of saikosaponins isolated from the roots of B. falcatum, selectively inhibits ACTH-induced lipolysis.