Intestinal endogenous metabolites affect neuroinflammation in 5×FAD mice by mediating "gut-brain" axis and the intervention with Chinese Medicine.

Background: Emerging evidence suggested the association between gut dysbiosis and Alzheimer's disease (AD) progression. However, it remained unclear how the gut microbiome and neuroinflammation in the brain mutually interact or how these interactions affect brain functioning and cognition. Here we hypothesized that "gut-brain" axis mediated by microbial derived metabolites was expected to novel breakthroughs in the fields of AD research and development.

Simultaneous Determination of Prostaglandin and Hormones in Excreta of Trogopterus xanthipes.

The excreta of Trogopterus xanthipes (also called Wulingzhi in Chinese, WLZ) is a well-known traditional Chinese medicine used for the treatment of irregular menstruation in clinic. Few reports are available on the chemical profiling of WLZ. In this work, qualitative and quantitative analyses of endogenous prostaglandin and hormones in WLZ were performed using UHPLC-orbitrap-MSn.

Synergistic Effects of Erzhi Pill Combined With Methotrexate on Osteoblasts Mediated the Wnt1/LRP5/-Catenin Signaling Pathway in Collagen-Induced Arthritis Rats.

Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease characterized by chronic synovitis, bone erosion, and bone loss. Erzhi Pill (EZP), a classic Chinese patent medicine, is often used to treat osteoporosis and shows a capacity for bone metabolism regulation. Methotrexate (MTX), an essential drug for RA treatment, has been reported to inhibit generalized bone loss in RA patients.

The anti-inflammatory effects of formononetin and ononin on lipopolysaccharide-induced zebrafish models based on lipidomics and targeted transcriptomics.

Introduction: Formononetin (MBHS) and its glycosylated derivative ononin (MBHG), as the major isoflavones, have exhibited the anti-inflammatory impacts on the lipopolysaccharide (LPS)-induced inflammation. Although various researches have focused on interpreting the pharmaceutical activities of MBHG and MBHS, the molecular mechanisms in zebrafish models are still unclear.

Objective: The purpose of the present work is to investigate the molecular mechanisms of the anti-inflammatory effects of MGHG and MBHS based on lipidomics and targeted transcriptomics.

Pharmacokinetics and Bioavailability of the Isoflavones Formononetin and Ononin and Their in Vitro Absorption in Ussing Chamber and Caco-2 Cell Models.

Formononetin and its glycoside ononin are bioactive isoflavones widely present in legumes. The present study investigated the pharmacokinetics, bioavailability, and in vitro absorption of formononetin and ononin. After an oral administration to rats, formononetin showed a higher systemic exposure over ononin.

[Simultaneous determination of sixteen mycotoxins contaminants in cogon rootstalk by QuEChERS-UPLC-QqQ mass spectrometry].

A method for the simultaneous determination of sixteen mycotoxins in cogon rootstalk was developed using ultra-performance liquid chromatography coupled with triple quadropole mass spectrometry(UPLC-QqQ-MS/MS). The samples were extracted with acetonitrile contained 1% acetic acid and purified by QuEChERS method. The separation was performed on an Agilent Eclipse Plus C₁₈column by gradient elution using methanol and 0.

New oleanane-type triterpenoid saponins isolated from the seeds of Celosia argentea.

Three new oleanane-type triterpenoid saponins named celosins H, I, and J were isolated from the seeds of Celosia argentea L. Their structures were characterized as 3-O-β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl-polygalagenin 28-O-β-D-glucopyranosyl ester, 3-O-β-D-glucuronopyranosyl-medicagenic acid 28-O-β-D-xylcopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-fucopyranosyl ester, and 3-O-β-D-glucuronopyranosyl-medicagenic acid 28-O-α-L-arabinopyranosyl-(1 → 3)-[β-D-xylcopyranosyl-(1 → 4)]-α-L-rhamnopyranosyl-(1 → 2)-β-D-fucopyranosyl ester by NMR, MS, and chemical evidences, respectively. In our opinion, celosins H-J could be used as chemical markers for the quality control of C.

Chemical profiling of the Chinese herb formula Xiao-Cheng-Qi Decoction using liquid chromatography coupled with electrospray ionization mass spectrometry.

An approach was established to analyze the chemical profiling of Xiao-Cheng-Qi Decoction (XCQD) using liquid chromatography coupled with electrospray ionization tandem mass spectrometry. XCQD consisted of three herbal medicines (Rhubarb, Fructus Aurantii Immaturus and Cortex Magnoliae Officinalis). The traditional water extractive method was applied in the sample preparation, which was identical with clinical use.

Liquid chromatography-tandem mass spectrometry analysis of metabolites in rats after administration of prenylflavonoids from Epimediums.

The metabolites in rats after administration of icariside II, icariin, epimedin C and extracts of four Epimedium species were investigated. Feces, bile, plasma and urine samples were detected comprehensively using HPLC-ESI-MS(n) method. The structures of metabolites were identified on the basis of their characteristic fragmentations in MS(n) experiments.

[Studies on chemical constituents and volatile oil of Xiaochengqi decoction].

Objective: To study the chemical constituents and volatile oil of Xiaochengqi decoction.

Method: The constituents in decoction were separated by means of column chromatography and their structures were identified by spectral data and compared with literature data. As well as the volatile oil of Xiaochengqi Fang were analyzed and identified by GC-MS.

Analysis of phenolic compounds in Epimedium plants using liquid chromatography coupled with electrospray ionization mass spectrometry.

A new method based on HPLC coupled with electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) has been established for the analysis of phenolic compounds in Epimedium plants. The characteristic fragmentation pathways of 29 phenolic compounds were studied, and 126 compounds were identified or tentatively characterized based on their mass spectra from fourteen samples including the aerial samples and the underground parts of the seven species. Furthermore, the differences in phenolic compound profiles between different Epimedium plants and two parts of the seven species were reported for the first time.