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https://www.readbyqxmd.com/read/28317245/efficient-discovery-of-quality-control-markers-for-gastrodia-elata-tuber-by-fingerprint-efficacy-relationship-modelling
#1
Mingfang Li, Yuan Du, Long Wang, Lilong Jiang, Xiaodong Ma, Ping Zhou, Ping Li, Huijun Li
INTRODUCTION: Gastrodia elata tuber (GET) has been widely used in China as a famous herbal medicine. However, the quality control markers (QCMs) for GET still need further investigation. OBJECTIVE: To develop a rational strategy based on fingerprint-efficacy relationship modelling to discover the efficacy-related QCMs, using GET as a case study. METHODOLOGY: The high-performance liquid chromatography (HPLC) fingerprints of 13 batches of GET extracts were established and 10 common peaks were structurally characterised by HPLC coupled with quadrupole time-of-flight mass spectrometry (QTOF-MS)...
March 20, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28303225/identification-and-differentiation-of-major-components-in-three-different-sheng-ma-crude-drug-species-by-uplc-q-tof-ms
#2
Mengxue Fan, Kunming Qin, Fei Ding, Yuting Huang, Xiaoli Wang, Baochang Cai
Cimicifugae Rhizoma (Sheng ma) is a Ranunculaceae herb belonging to a composite family and well known in China. has been widely used in traditional Chinese medicine. The Pharmacopoeia of the People׳s Republic of China contains three varieties (Cimicifuga dahurica (Turcz.), Cimicifuga foetida L. and Cimicifuga heracleifolia Kom.) which have been used clinically as "Sheng-ma". However, the chemical constituents of three components of "Sheng-ma" have never been documented. In this study, a rapid method for the analysis of the main components of "Sheng-ma" was developed using ultra-high performance liquid chromatography with quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS)...
March 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28290284/uhplc-ms-2-based-approach-for-the-comprehensive-metabolite-profiling-of-bean-vicia-faba-l-by-products-a-promising-source-of-bioactive-constituents
#3
Ibrahim M Abu-Reidah, David Arráez-Román, Ismail Warad, Alberto Fernández-Gutiérrez, Antonio Segura-Carretero
Today, by-products generated from the agro-industrial practices are considered a key source of bioactive and functional components, that can be used for their nutritional and added value properties. New aspects concerning the use of these wastes as by-products in food production additives or supplements with high nutritional and medicinal value have gained substantial interest, due to their possession of economically high-value products. In this sense, the present study describes a thorough characterization of phytochemical compounds from hydro-methanolic extract of broad beans testa by using ultra-high performance liquid chromatography (UHPLC) hyphenated with quadrupole-time-of-flight tandem mass spectrometry (QTOF-MS)...
March 2017: Food Research International
https://www.readbyqxmd.com/read/28287417/the-effect-of-chinese-herbal-medicine-formula-mkg-on-allergic-asthma-by-regulating-lung-and-plasma-metabolic-alternations
#4
Meng Yu, Hong-Mei Jia, Feng-Xia Cui, Yong Yang, Yang Zhao, Mao-Hua Yang, Zhong-Mei Zou
Asthma is a chronic inflammatory disorder of the airway and is characterized by airway remodeling, hyperresponsiveness, and shortness of breath. Modified Kushen Gancao Formula (mKG), derived from traditional Chinese herbal medicines (TCM), has been demonstrated to have good therapeutic effects on experimental allergic asthma. However, its anti-asthma mechanism remains currently unknown. In the present work, metabolomics studies of biochemical changes in the lung tissue and plasma of ovalbumin (OVA)-induced allergic asthma mice with mKG treatment were performed using ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS)...
March 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28284426/influence-of-ultrafiltration-membrane-on-ophiopogonins-and-homoisoflavonoids-in-ophiopogon-japonicus-as-measured-by-ultra-fast-liquid-chromatography-coupled-with-ion-trap-time-of-flight-mass-spectrometry
#5
Chun-Hua Liu, Jin Qi, Da-Zheng Zhou, Ai-Chun Ju, Bo-Yang Yu
Ultrafiltration is one of the most fascinating technologies, which makes it possible to improve the quality of traditional medicines for application in the pharmaceutical industry. However, researchers have paid little attention to the effect of ultrafiltration membrane on traditional medicines chemical constituents. In this work, Ophiopogon japonicus (L.f) Ker-Gawl. was used as an example to illuminate the influence of ultrafiltration with different material and molecular weight cut-off (MWCO) membrane on natural chemical constituents as measured by ultra-fast liquid chromatography coupled with ion trap time-of-flight mass spectrometry (UFLC-IT-TOF/MS)...
February 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28284081/an-integrated-strategy-using-uplc-qtof-ms-e-and-uplc-qtof-mrm-enhanced-target-for-pharmacokinetics-study-of-wine-processed-schisandra-chinensis-fructus-in-rats
#6
Kuangyi Liu, Yonggui Song, Yali Liu, Mi Peng, Hanyun Li, Xueliang Li, Bingwei Feng, Pengfei Xu, Dan Su
Currently the pharmacokinetic (PK) research of herbal medicines is still limited and facing critical technical challenges on quantitative analysis of multi-components from biological matrices which often accompanied by lacking of authentic standards and low concentration. This present work contributes to the development of an integrated strategy for extensive pharmacokinetics assessments, and a selective and sensitive method independent of authentic standards for multi-components analysis based on the use of ultra-performance liquid chromatography/quadrupole-time-of-flight/MS(E) (UPLC-TOF-MS(E)) and UPLC-TOF-MRM (rnhanced target)...
February 27, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28279930/metabolites-identification-of-berberine-in-rats-using-ultra-high-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry
#7
Kun Wang, Liwei Chai, Xinchi Feng, Zhongbo Liu, Hongxia Liu, Liqin Ding, Feng Qiu
Berberine (BBR), the principle component for many medicinal plants such as Coptis chinensis Franch., Phellodendron chinense Schneid., and Mahonia bealei (Fort.) Carr., possesses diverse pharmacological activities, including anti-bacterial, anti-inflammatory, antitumor, hypolipidemic and antidiabetic activities. In this study, a rapid and reliable method using a five-step strategy based on the ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF-MS), and metabolynx™ software with mass defect filter (MDF) technique was developed to investigate the metabolism of BBR...
February 27, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28278664/ultra-high-performance-liquid-chromatography-with-tandem-mass-spectrometry-for-rapid-separation-and-identification-of-main-constituents-in-chinese-herbal-formula-xuan-hu-suo-san
#8
Huaqi Tang, Xinyue Zhang, Shilin Luo, Fei Shang, Jianping Chen, Jinghong Wang, Xiaojie Duan, Xiaoyan Gao, Yikun Sun
Xuan Hu Suo San (XHSS) is a traditional Chinese medicine that has been extensively applied in the treatment of osteoarthritis for many years, however, its chemical composition has not yet been elucidated. Thus, a rapid, efficient, and precise method based on ultra high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was applied in both positive- and negative-ion modes to rapidly separate and identify the main chemical ingredients in XHSS for the first time. Finally, with the optimised separation and detection method, a total of 57 compounds were simultaneously separated within 13 min, among which 14 compounds were confirmed by comparing retention time and MS data with reference standards and others were tentatively identified by comparing with reference literatures...
February 15, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28263849/chemical-profiles-and-pharmacological-activities-of-chang-kang-fang-a-multi-herb-chinese-medicinal-formula-for-treating-irritable-bowel-syndrome
#9
Qian Mao, Lei Shi, Zhi-Gang Wang, Yu-Hui Luo, Yin-Yu Wang, Xue Li, Min Lu, Jian-Min Ju, Jin-Di Xu, Ming Kong, Shan-Shan Zhou, Min-Qin Shen, Song-Lin Li
ETHNOPHARMACOLOGICAL RELEVANCE: Chang-Kang-Fang formula (CKF), a multi-herb traditional Chinese medicinal formula, has been clinically used for treatment of irritable bowel syndrome (IBS). The mechanisms of CKF for treating IBS and the components that are responsible for the activities were still unknown. AIM OF THE STUDY: To investigate the chemical profiles and effects of CKF on IBS model. MATERIALS AND METHODS: The chemical profiles of CKF were investigated by ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q/TOF-MS/MS)...
March 2, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28260956/in-flight-medical-emergencies-during-airline-operations-a-survey-of-physicians-on-the-incidence-nature-and-available-medical-equipment
#10
Jochen Hinkelbein, Christopher Neuhaus, Lennert Böhm, Steffen Kalina, Stefan Braunecker
BACKGROUND: Data on the incidence of in-flight medical emergencies on-board civil aircraft are uncommon and rarely published. Such data could provide information regarding required medical equipment on-board aircraft and requisite training for cabin crew. The aim of the present study was to gather data on the incidences, nature, and medical equipment for in-flight medical emergencies by way of a survey of physician members of a German aerospace medical society. MATERIALS AND METHODS: Using unipark...
2017: Open Access Emergency Medicine: OAEM
https://www.readbyqxmd.com/read/28255462/profiling-proteins-in-the-hypothalamus-and-hippocampus-of-a-rat-model-of-premenstrual-syndrome-irritability
#11
Mingqi Qiao, Peng Sun, Yang Wang, Sheng Wei, Xia Wei, Chunhong Song, Fushun Wang, Jibiao Wu
Premenstrual syndrome (PMS) refers to several physical and mental symptoms (such as irritability) commonly encountered in clinical gynaecology. The incidence of PMS has been increasing, attracting greater attention from medical fields. However, PMS pathogenesis remains unclear. This study employed two-dimensional gel electrophoresis (2DE) for proteomic map analysis of the hypothalamus and hippocampus of rat models of premenstrual syndrome (PMS) irritability. Matrix-assisted laser desorption/ionisation time of flight mass spectroscopy (MALDI-TOF-MS) was used to identify proteins possibly related with PMS irritability...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28244132/3d-phase-contrast-mri-partial-volume-correction-for-robust-blood-flow-quantification-in-small-intracranial-vessels
#12
Pierre Bouillot, Bénédicte M A Delattre, Olivier Brina, Rafik Ouared, Mohamed Farhat, Christophe Chnafa, David A Steinman, Karl-Olof Lovblad, Vitor M Pereira, Maria I Vargas
PURPOSE: Recent advances in 3D-PCMRI (phase contrast MRI) sequences allow for measuring the complex hemodynamics in cerebral arteries. However, the small size of these vessels vs spatial resolution can lead to non-negligible partial volume artifacts, which must be taken into account when computing blood flow rates. For this purpose, we combined the velocity information provided by 3D-PCMRI with vessel geometry measured with 3DTOF (time of flight MRI) or 3DRA (3D rotational angiography) to correct the partial volume effects in flow rate assessments...
February 28, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28238629/apolipoprotein-a1-rs5070-a-g-polymorphism-with-stroke-subtypes-in-taiwan
#13
Li-Chi Hsu, Tsong-Hai Lee
BACKGROUND: Apolipoprotein A1 (ApoA1) is a structural protein of high-density lipoprotein cholesterol; ApoA1 is involved in lipid and cholesterol metabolism. This study evaluated the association of ApoA1 polymorphism (rs5070) with different stroke subtypes in Taiwanese individuals. METHODS: A total of 2139 cases, including 614 controls and 708 large artery atherosclerosis (LAA), 377 small-vessel occlusion, and 440 hypertensive intracranial hemorrhage cases, were enrolled in this study...
February 23, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28235732/chemical-profiling-of-fufang-xialian-capsule-by-uhplc-q-tof-ms-and-its-antioxidant-activity-evaluated-by-in-vitro-method
#14
Shizhe Li, Shu Liu, Zifeng Pi, Fengrui Song, Yongri Jin, Zhiqiang Liu
Fufang Xialian (FXL) capsule, a traditional Chinese medicine (TCM) formula, has been used for a long time to treat Chronic Atrophic Gastritis, but the pharmacodynamic material basis and mechanism of action are unclear. In this research, ferric-reducing antioxidant power (FRAP) method and DPPH scavenging method were utilized to evaluate the antioxidant activity of FXL in vitro. An ultra high-performance liquid chromatography coupled with Linear Ion Trap Mass Spectrometer (UHPLC-IT-MS) method and an ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) method were utilized to acquire the constituents information of FXL...
February 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28230759/analysis-of-the-total-biflavonoids-extract-from-selaginella-doederleinii-by-hplc-qtof-ms-and-its-in-vitro-and-in-vivo-anticancer-effects
#15
Hong Yao, Bing Chen, Yanyan Zhang, Huigen Ou, Yuxiang Li, Shaoguang Li, Peiying Shi, Xinhua Lin
Selaginella doederleinii Hieron has been traditionally used as a folk antitumor herbal medicine in China. In this paper, the phytochemical components of the total biflavonoids extract from S. doederleinii were studied by using high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry (HPLC-ESI-QTOF MS/MS) in negative ion mode, and their in vitro and in vivo anticancer effects were evaluated. Four types of biflavonoids from S. doederleinii, including IC3'-IIC8'', IC3'-IIC6'', IC3'-IIC3''', and C-O linked biflavonoids were examined originally using QTOF MS/MS...
February 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28217946/identification-of-four-cornua-by-ultra-performance-liquid-chromatography-with-time-of-flight-mass-spectrometry-coupled-with-principal-component-analysis
#16
Xian-Long Cheng, Qian-Qian Zhang, Ming-Hua Li, Hua Yan, Kun-Zi Yu, Jian-Li Zhou, Li Shao-Ping, Feng Wei, Shuang-Cheng Ma
An ultra high performance liquid chromatography with quadrupole time-of-flight mass spectrometry method coupled with principal component analysis was developed and applied to the identification of Cornu Antelopis, Cornu Bubali, Cornu Naemorhedi, and Cornu Bovis. The data obtained from the trypsin-digested samples were subjected to principal component analysis to classify these four cornua. Additionally, marker peptides of the cornua were determined by orthogonal partial least-squares discriminant analysis, and fragmentation tandem mass spectra of these marker peptides were evaluated...
February 20, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28208390/geometry-and-design-of-origami-bellows-with-tunable-response
#17
Austin Reid, Frederic Lechenault, Sergio Rica, Mokhtar Adda-Bedia
Origami folded cylinders (origami bellows) have found increasingly sophisticated applications in space flight and medicine. In spite of this interest, a general understanding of the mechanics of an origami folded cylinder has been elusive. With a newly developed set of geometrical tools, we have found an analytic solution for all possible cylindrical rigid-face states of both Miura-ori and triangular tessellations. Although an idealized bellows in both of these families may have two allowed rigid-face configurations over a well-defined region, the corresponding physical device, limited by nonzero material thickness and forced to balance hinge and plate-bending energy, often cannot stably maintain a stowed configuration...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28189048/discovery-of-discriminatory-quality-control-markers-for-chinese-herbal-medicines-and-related-processed-products-by-combination-of-chromatographic-analysis-and-chemometrics-methods-radix-scutellariae-as-a-case-study
#18
Fei Wang, Bo Wang, Long Wang, Zi-Yue Xiong, Wen Gao, Ping Li, Hui-Jun Li
The processing procedure of traditional Chinese herbal medicines (CHMs) plays an essential role in clinical applications. However, little progress has been made on the quality control of crude and processed products. The present work, taking Radix Scutellariae (RS), wine-processed RS and carbonized RS as a typical case, developed a comprehensive strategy integrating chromatographic analysis and chemometric methods for quality evaluation and discrimination of crude RS and its processed products. Chemical fingerprints were established by high-performance liquid chromatography coupled with photodiode array detector and quadrupole time-of-flight mass spectrometry, and similarity analyses were calculated based on eleven common characteristic peaks...
February 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28164729/lc-ms-ms-analysis-and-evaluation-of-the-anti-inflammatory-activity-of-components-from-bushenhuoxue-decoction
#19
Dongdong Sun, Qiuying Yan, Xiaofang Xu, Weixing Shen, Changliang Xu, Jiani Tan, Haibin Zhang, Liu Li, Haibo Cheng
CONTEXT: BushenHuoxue decoction (BSHXD) is a Chinese medicine prescription, which is composed of nine Chinese medical materials, used to treat osteoarthritis (OA). OBJECTIVE: This study develops sensitive and convenient LC-MS/MS methods to analyze chemical components from BSHXD, and assess the anti-inflammatory activities thereof. MATERIALS AND METHODS: The chemical composition from BSHXD water extract was qualitative analyzed by high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry (HPLC-ESI-Q-TOF-MS)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28159726/anti-ulcer-effect-and-potential-mechanism-of-licoflavone-by-regulating-inflammation-mediators-and-amino-acid-metabolism
#20
Yi Yang, Shuai Wang, Yong-Rui Bao, Tian-Jiao Li, Guan-Lin Yang, Xin Chang, Xian-Sheng Meng
ETHNOPHARMACOLOGICAL RELEVANCE: Glycyrrhiza is the dry root and rhizome of the leguminous plant, Glycyrrhiza uralensis Fisch., Glycyrrhiza inflata Bat. or Glycyrrhiza glabra L., which was firstly cited in Shennong's Herbal Classic in Han dynasty and was officially listed in the Chinese Pharmacopoeia, has been widely used in China during the past millennia. Licoflavone is the major component of Glycyrrhiza with anti-ulcer activity. The present study is based on clarifying the anti-ulcer effect of licoflavone, aiming at elucidating the possible molecule mechanisms of its action for treating gastric ulcer rats induced by acetic acid...
January 31, 2017: Journal of Ethnopharmacology
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