Metabolites identificaion of two bioactive constituents in Trollius ledebourii in rats using ultra-high-performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry

Liao, Man; Cheng, Xiaoye; Diao, Xingxing; Sun, Yupeng; Zhang, Lantong

doi:10.1016/j.jchromb.2017.10.061

Cited by 19 publications

(13 citation statements)

References 14 publications

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“…The characteristic ions at 291.1217, 273.1112, 243.0646, and 231.0449 were similar to the fragment ions of M0, suggesting the acetylation binding at the glucose of M0. Considering the difference in the activity of hydroxyl groups in glucose, C 6 ‐OH and C 2 ‐OH were the most likely reaction sites . The value of Clog P for M25 and M26 were 1.24 and 1.19, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The results showed that two hydroxyl groups in glucose of M0 were replaced by hydrogen atoms to form 2,6-di-deoxysugar. Considering the difference in the activity of hydroxyl groups in glucose, C 6 -OH and C 2 -OH were the most likely reaction sites [15]. The value of Clog P for M25 and M26 were 1.24 and 1.19, respectively.…”

Section: Identification Of Representative Phase I Metabolitesmentioning

confidence: 97%

“…In TOF-MS systems, multiple mass defect filter (MMDF) and dynamic background subtraction (DBS) can provide the full mass scan and accurate MS/MS spectral data of the metabolites with no interferences from the background or the matrix [14]. In addition, online data acquisition and offline data mining are equally important for identification and analysis of metabolites, and the latter include extracted ion chromatography (XIC), mass defect filtering (MDF), product ion filtering (PIF), and neutral loss filtering (NLF) [15,16].…”

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confidence: 99%

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Metabolites study on 5‐O‐methylvisammioside in vivo and in vitro by ultra high performance liquid chromatography coupled to quadrupole time‐of‐flight mass spectrometry

Fan

Liu

Meng

et al. 2019

J of Separation Science

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5‐O‐Methylvisammioside is one of major chromones of Radix Saposhnikoviae possessing definite pharmacological activities, but there are few reports with respect to the metabolism of 5‐O‐methylvisammioside. In this work, metabolites in vivo were explored in male Sprague‐Dawley rats and in vitro investigated on rat intestinal bacteria incubation model and were identified by using ultra high performance liquid chromatography/quadrupole time‐of‐flight mass spectrometry. An online data acquisition method based on a multiple mass defect filter and dynamic background subtraction was developed to trace all probable metabolites. As a result, 26 metabolites in vivo (including 18, 15, 10, and 10 in rat urine, faece, bile, and blood) and 7 metabolites in vitro were characterized, respectively. Additionally, the main metabolic pathways in vivo and in vitro, including deglycosylation, deglycosylation + demethylation, deglycosylation + oxidation, N‐acetylation, and sulfate conjugation, were summarized by calculating the relative content of each metabolite. The obtained results significantly enriched our knowledge about 5‐O‐methylvisammioside metabolism and will lead to a better understanding of its safety and efficacy.

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Section: Resultsmentioning

confidence: 99%

Section: Identification Of Representative Phase I Metabolitesmentioning

confidence: 97%

mentioning

confidence: 99%

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Metabolites study on 5‐O‐methylvisammioside in vivo and in vitro by ultra high performance liquid chromatography coupled to quadrupole time‐of‐flight mass spectrometry

Fan

Liu

Meng

et al. 2019

J of Separation Science

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“…Flavonoids of the active fraction primarily composed of xanthones and flavones. Major fragmentations proposed for mangiferin [36] and vitexin [37] are presented in Figure 3.…”

Section: Resultsmentioning

confidence: 99%

Optimization of extraction for Anemarrhena asphodeloides Bge. using silica gel‐based vortex‐homogenized matrix solid‐phase dispersion and rapid identification of antioxidant substances

Sun

et al. 2020

J of Separation Science

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A novel and simple method was established for the extraction and determination of seven compounds in Anemarrhena asphodeloides Bge. using silica gel-based vortex-homogenized matrix solid-phase dispersion and ultra-high performance liquid chromatography quadrupole-time of-flight mass spectrometer. The conditions for the extraction were optimized. Silica gel was used as the dispersant, 50% methanol-water was selected as an elution solvent and the grinding time was 3 min. Compared with the traditional ultrasonic-assisted extraction, the developed method was rapid and efficient. In order to screen potential antioxidants, extract dealing with the optimized method was applied to a polyamide chromatography column and a D-101 macroporous resin column. Fr.2.2 showed the highest antioxidant activities with the most content of flavonoid. A total of 25 peaks were identified from the active fraction. A 2,2 ′ -diphenyl-1-picrylhydrazyl ultra-high performance liquid chromatography coupled with mass spectrometry approach was adopted for the rapid and exact screening and identification of antioxidant compounds. It indicated that flavonoids exhibited potential antioxidant activities. The antioxidant activities of nine monomeric compounds in vivo were tested. Structure-activity relationships were discussed.Five flavonoids with the concentration of 500 µg/mL would reduce the oxidative stress of PC12 cells that were induced with 2,2 ′ -azobis[2-methylpropionamidine] dihydrochloride.

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“…The information dependent acquisition (IDA) criteria are provided to the ions that match the mass defect window to obtain the MS/MS spectra. This enables the chemical structure of the compound to be deduced 31 . Thus, in this study, samples were analyzed by ultra-high performance liquid chromatography connected to an AB SCIEX triple TOF 5600 MS/MS system to identify related metabolites and degradation products.…”

Section: Introductionmentioning

confidence: 99%

Studies on the metabolism and degradation of vancomycin in simulated in vitro and aquatic environment by UHPLC-Triple-TOF-MS/MS

Cao

Feng

Zhang

et al. 2018

Sci Rep

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Vancomycin is one of the most commonly used glycopeptide antiobiotics, and as such is an important emerging environmental contaminant. Pharmaceuticals and personal care products (PPCPs), such as antibiotics, are problematic since wastewater treatment processes are not completely effective at removing these chemical compounds. Since wastewater treatment processes are not completely effective, vancomycin occurs in surface water. Vancomycin and its metabolites in vivo and degradation products in aquatic environment may lead to undesirable ecological effects that threaten the environment or cause undesirable reactions that affect human health. We aimed to study vancomycin metabolism in vitro and its natural degradation in aquatic environment, as well as explore for related metabolites and degradation products. Accordingly, we established four systems, using a constant temperature oscillator at 37 °C for 10 days for vancomycin in activated rat liver microsomes (experimental system), inactivated rat liver microsomes (control system), phosphate buffer saline (PBS system) and pure water (pure water system), as well as an additional system of activated rat liver microsomes without vancomycin (blank system). The metabolism and degradation of vancomycin were studied using a high resolution and high sensitivity ultra-high performance liquid chromatography (UHPLC)-Triple-time of flight (TOF)-mass spectrometry (MS) method in positive ion mode. The compared result of activated rat liver microsomes system and inactivated rat liver microsomes system confirms that vancomycin is not metabolized in the liver. Vancomycin was degraded in the four non-blank incubation systems. The MetabolitePilot 2.0 software was used for screening the probable degradation products, as well as for establishing its associated degradation pathways. Eventually, four degradation products were identified and their chemical structures were deduced. The results of this study provide a foundation for evaluation of the effects of vancomycin and its degradation products on environmental safety and human health in the future.

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Metabolites identificaion of two bioactive constituents in Trollius ledebourii in rats using ultra-high-performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry

Cited by 19 publications

References 14 publications

Metabolites study on 5‐O‐methylvisammioside in vivo and in vitro by ultra high performance liquid chromatography coupled to quadrupole time‐of‐flight mass spectrometry

Metabolites study on 5‐O‐methylvisammioside in vivo and in vitro by ultra high performance liquid chromatography coupled to quadrupole time‐of‐flight mass spectrometry

Optimization of extraction for Anemarrhena asphodeloides Bge. using silica gel‐based vortex‐homogenized matrix solid‐phase dispersion and rapid identification of antioxidant substances

Studies on the metabolism and degradation of vancomycin in simulated in vitro and aquatic environment by UHPLC-Triple-TOF-MS/MS

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