scholarly journals A Metabolomic Strategy to Screen the Prototype Components and Metabolites ofShuang-Huang-Lian Injectionin Human Serum by Ultra Performance Liquid Chromatography Coupled with Quadrupole Time-of-Flight Mass Spectrometry

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Mingxing Guo ◽  
Baosheng Zhao ◽  
Haiyu Liu ◽  
Li Zhang ◽  
Long Peng ◽  
...  
Keyword(s):  
Human Serum ◽  
Human Body ◽  
Matrix Effects ◽  
Ultra Performance Liquid Chromatography ◽  
Acute Respiratory Tract Infection ◽  
Chemical Compositions ◽  
Drug Induced ◽  
Flight Mass Spectrometry ◽  
Chinese Patent ◽  
Metabolic Reactions

Shuang-huang-lian injection(SHLI) is a famous Chinese patent medicine, which has been wildly used in clinic to treat acute respiratory tract infection, pneumonia, influenza, and so forth. Despite the widespread clinical application, the prototype components and metabolites ofSHLIhave not been fully elucidated, especially in human body. To discover and screen the constituents or metabolites of Chinese medicine in biofluids tends to be more and more difficult due to the complexity of chemical compositions, metabolic reactions and matrix effects. In this work, a metabolomic strategy to comprehensively elucidate the prototype components and metabolites ofSHLIin human serum conducted by UPLC-Q-TOF/MS was developed. Orthogonal partial least squared discriminant analysis (OPLS-DA) was applied to distinguish the exogenous, namely, drug-induced constituents, from endogenous in human serum. In the S-plot, 35 drug-induced constituents were found, including 23 prototype compounds and 12 metabolites which indicated thatSHLIin human body mainly caused phase II metabolite reactions. It was concluded that the metabolomic strategy for identification of herbal constituents and metabolites in biological samples was successfully developed. This identification and structural elucidation of the chemical compounds provided essential data for further pharmacological and pharmacokinetics study ofSHLI.

scholarly journals An Accurate and Effective Method for Measuring Osimertinib by UPLC-TOF-MS and Its Pharmacokinetic Study in Rats

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2894 ◽  
Author(s):  
Song-Tao Dong ◽  
Ying Li ◽  
Hao-Tian Yang ◽  
Yin Wu ◽  
Ya-Jing Li ◽  
...  
Keyword(s):  
Matrix Effects ◽  
Internal Standard ◽  
Ultra Performance Liquid Chromatography ◽  
Rat Plasma ◽  
Analysis Method ◽  
T790m Mutation ◽  
Flight Mass Spectrometry ◽  
Relative Standard ◽  
New Generation ◽  
Tof Ms

Osimertinib, a new-generation inhibitor of the epidermal growth factor, has been used for the clinical treatment of advanced T790M mutation-positive tumors. In this research, an original analysis method was established for the quantification of osimertinib by ultra-performance liquid chromatography with time of flight mass spectrometry (UPLC-TOF-MS) in rat plasma. After protein precipitation with acetonitrile and sorafinib (internal standard, IS), they were chromatographed through a Waters XTerra MS C18 column. The mobile phase was acetonitrile and water (including 0.1% ammonia). The relative standard deviation (RSD) of the intra- and inter-day results ranged from 5.38 to 9.76% and from 6.02 to 9.46%, respectively, and the extraction recovery and matrix effects were calculated to range from 84.31 to 96.14% and from 91.46 to 97.18%, respectively. The results illustrated that the analysis method had sufficient specificity, accuracy and precision. Meanwhile, the UPLC-TOF-MS method for osimertinib was successfully applied into the pharmacokinetics of SD rats.

Characterization of lignans in Forsythiae Fructus and their metabolites in rats by ultra-performance liquid chromatography coupled time-of-flight mass spectrometry

2020 ◽  
Author(s):  
Feng-xiang Zhang ◽  
Zi-ting Li ◽  
Chang Li ◽  
Min Li ◽  
Zhi-hong Yao ◽  
...  
Keyword(s):  
Ring Opening ◽  
Furan Ring ◽  
Ultra Performance Liquid Chromatography ◽  
Rat Plasma ◽  
Chemical Information ◽  
Flight Mass Spectrometry ◽  
Blood And Urine Samples ◽  
Metabolic Reactions ◽  
First Time

Abstract Objectives This study was designed to profile the chemical information of Forsythiae Fructus (FF) and investigate the in-vivo FF-related xenobiotics, especially for lignans. Methods Rats were oral administrated of FF and pinoresinol-4-O-glucoside, respectively. Blood and urine samples were collected after ingestion, and xenobiotics was profiled by an UPLC/Qtof MS method. Key findings A total of 19 lignans were identified or tentatively characterized in FF, and 63 lignan-related xenobiotics were found in rat plasma and urine after ingestion of FF. It was found that lignans could be transformed into metabolites by furan ring opening, hydrogenation, demethylation, dehydration and phase II reactions (sulfation and glucuronidation). The whole metabolic behaviour of bisepoxylignan was revealed by evaluating the metabolism of pinoresinol-4-O-glucoside in vivo. It was found that the configuration of C-8/C-8ʹ was retained after furan ring opening and metabolic reactions always occurred at position of C-3/C-4/C-5 or C-3ʹ/C-4ʹ/C-5ʹ. Additionally, other types components in FF and in vivo were also characterized. Conclusions This work revealed the in-vivo metabolism of FF, and reported the characteristic metabolic reactions of lignans for the first time. It was also provided the foundation for the further investigation on pharmacodynamic components of FF or TCMs containing FF.

Identification of the chemical compositions of Ponkan peel by ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry

2016 ◽  
Vol 8 (4) ◽  
pp. 893-903 ◽  
Author(s):  
Ying Yang ◽  
Xi Juan Zhao ◽  
Yu Pan ◽  
Zhiqin Zhou
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Qualitative Analysis ◽  
Time Of Flight ◽  
Ultra Performance Liquid Chromatography ◽  
Chemical Compositions ◽  
Flight Mass Spectrometry ◽  
Tof Ms

A new UPLC-Q-TOF-MS method has been reported for the qualitative analysis and profiling of chemical compositions of Ponkan peel.

scholarly journals UPLC-TOF-MS/MS-Based Metabolomics Analysis Reveals Species-Specific Metabolite Compositions in Pitchers of Nepenthes ampullaria, Nepenthes rafflesiana, and Their Hybrid Nepenthes × hookeriana

2021 ◽  
Vol 12 ◽  
Author(s):  
Muhammad Aqil Fitri Rosli ◽  
Ahmed Mediani ◽  
Kamalrul Azlan Azizan ◽  
Syarul Nataqain Baharum ◽  
Hoe-Han Goh
Keyword(s):  
Dietary Habits ◽  
Ultra Performance Liquid Chromatography ◽  
Intermediate Phenotype ◽  
Chemical Compositions ◽  
Chemical Marker ◽  
Flight Mass Spectrometry ◽  
Assisted Extraction ◽  
Species Specific ◽  
Metabolomics Analysis ◽  
Tof Ms

Hybridization is key to the evolution and diversity of plants in nature. Nepenthaceae comprises a family of diverse tropical carnivorous pitcher plant species with extensive hybridization. However, there is no study to date on the metabolite expression of hybrids in this family. We performed a non-targeted metabolomics analysis of the pitchers of two Nepenthes species with different dietary habits, namely, the semi-detritivorous N. ampullaria and carnivorous N. rafflesiana with their hybrid (N. × hookeriana) for a comparative study. The whole-pitcher samples were extracted in methanol:chloroform:water (3:1:1) via sonication-assisted extraction and analyzed using ultra-performance liquid chromatography time-of-flight mass spectrometry (UPLC-TOF-MS) followed by data analysis to profile chemical compositions. A total of 1,441 metabolite features were profiled from the three species in which 43.3% of features in the hybrid samples were not found in either of its parents. The partial least squares discriminant analysis (PLS-DA) found 324 metabolite features with variable in projection (VIP) values greater than one in which 55 features were statistically significant. This showed that the hybrid is closer to N. rafflesiana, which is consistent to the previous study on gene and protein expressions. A total of 105 metabolites were putatively identified with manual searches using public metabolite databases. Phenols were detected to be the most abundant secondary metabolites due to a high flavonoid content, especially in N. rafflesiana. The most abundant feature 476.3s:449.102 was found to be the most significant VIP for distinguishing between the three species as a chemical marker. This is the first study comparing metabolites in the carnivory organs of different Nepenthes species with comprehensive profiling and putative identification. The differential metabolite compositions in the pitchers of different species might have ecological implications with the hybrid showing intermediate phenotype between the parents as well as manifesting unique metabolites. However, there is no clear evidence of metabolites related to the differences in dietary habits between the hybrid and the two parent species.

scholarly journals Metabolic Profiling of Alpinetin in Rat Plasma, Urine, Bile and Feces after Intragastric Administration

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3458
Author(s):  
Jieying Qiu ◽  
Hongyu Wu ◽  
Feng Feng ◽  
Xiaoying He ◽  
Caihong Wang ◽  
...  
Keyword(s):  
Formic Acid ◽  
High Strength ◽  
Gradient Elution ◽  
Ultra Performance Liquid Chromatography ◽  
Rat Plasma ◽  
Intragastric Administration ◽  
Flight Mass Spectrometry ◽  
Metabolic Reactions ◽  
First Time

Alpinetin, a bioactive flavonoid, has been known to have a diverse therapeutic effect, with namely anti-inflammatory, anticancer and antioxidant effects with low systemic toxicity. This study aimed to obtain metabolic profiles of alpinetin in orally administrated rats. The metabolites of alpinetin were systematically analyzed and identified by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS). The chromatographic separation was achieved on a High Strength Silica (HSS) T3 (1.8 μm, 2.1 × 100 mm) column with the mobile phase consisting of water containing 0.1% formic acid and acetonitrile with 0.1% formic acid via gradient elution. An extracted ion chromatogram strategy based on multiple prototype/metabolite intermediate templates and 71 typical metabolic reactions was proposed to comprehensively profile the metabolites of alpinetin. With the metabolite profiling strategy, altogether 15 compounds were recognized from urine, plasma, bile and feces of rats after intragastric administration of alpinetin for the first time. The prototype, glucuronide conjugates and phenolic acids metabolites were the probable predominant form of alpinetin in rats. This work showed a comprehensive study of the probable metabolic pathways of alpinetin in vivo, which could provide meaningful information for future pharmacological studies.

Sign in / Sign up

Export Citation Format

Share Document