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https://www.readbyqxmd.com/read/29338338/sesbagrandiflorain-a-and-b-isolation-of-two-new-2-arylbenzofurans-from-the-stem-bark-of-sesbania-grandiflora
#1
Noviany Noviany, Arif Nurhidayat, Sutopo Hadi, Tati Suhartati, Muhammad Aziz, Neny Purwitasari, Iman Subasman
Native to tropical Asia, Sesbania grandiflora (L.), Pers is a member of the Fabaceae family of flowering plants. All parts of S. grandiflora are used in traditional medicine and phytochemical investigations have been conducted on extracts of the leaves, seeds and roots of S. grandiflora to provide scientific validation of its properties. However, to date, no study has determined the phytochemical constituents of S. grandiflora stem bark. The stem bark powdered of S. grandiflora was extracted exhaustively with n-hexane, EtOAc and 90% aqueous MeOH sequentially...
January 16, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29336082/metabolomics-study-of-cultivated-bulbus-fritillariae-cirrhosae-at-different-growth-stages-using-uhplc-qtof-ms-coupled-with-multivariate-data-analysis
#2
Zhao Geng, YiFei Liu, Yan Gou, QinMei Zhou, ChengJun He, Li Guo, Juan Zhou, Liang Xiong
INTRODUCTION: Bulbus fritillariae cirrhosae (known as Chuān bèi mǔ in China, BFC) contain fritillaria steroidal alkaloids as the bioactive ingredients and are widely used as traditional Chinese medicine for the treatment of cough and phlegm. Due to limited wild resources, the cultivated species are becoming predominantly used in Chinese traditional medicine markets. OBJECTIVE: To assess the impact of different growth stages on the alkaloids of cultivated BFC and establish a reference for quality control and guidance for appropriate harvesting practices...
January 15, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29333463/characteristics-of-smoothing-filters-to-achieve-the-guideline-recommended-positron-emission-tomography-image-without-harmonization
#3
Yuji Tsutsui, Shinichi Awamoto, Kazuhiko Himuro, Yoshiyuki Umezu, Shingo Baba, Masayuki Sasaki
Objectives: The aim of this study is to examine the effect of different smoothing filters on the image quality and SUVmax to achieve the guideline recommended positron emission tomography (PET) image without harmonization. Methods: We used a Biograph mCT PET scanner. A National Electrical Manufacturers Association (NEMA) the International Electrotechnical Commission (IEC) body phantom was filled with 18F solution with a background activity of 2.65 kBq/mL and a sphere-to-background ratio of 4...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29332820/a-strategy-for-screening-of-%C3%AE-glucosidase-inhibitors-from-morus-alba-root-bark-based-on-the-ligand-fishing-combined-with-high-performance-liquid-chromatography-mass-spectrometer-and-molecular-docking
#4
Zhen Wang, Xiaoqing Li, Menghan Chen, Feiyan Liu, Chao Han, Lingyi Kong, Jianguang Luo
A new method based on ligand fishing combined with high-performance liquid chromatography quadrupole-time-of-flight mass spectrometer and molecular docking was established to screen α-glucosidase inhibitors from a traditional Chinese medicine Morus alba root bark. α-Glucosidase was immobilized on magnetic nanoparticles, used as a solid support to incubate with crude extract. After ligand fishing, the eluates were analyzed by high-performance liquid chromatography quadrupole-time-of-flight mass spectrometer, obtaining eleven ligands (1-4, 6-12) eventually...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29332776/compliance-with-a-national-standard-by-norwegian-helicopter-emergency-physicians
#5
Lars Petter Bjørnsen, Andrea Marie Solheim, Oddvar Uleberg, Eirik Skogvoll
OBJECTIVE: The "National Standard Requirements for Helicopter Emergency Medicine Services Physicians" gives recommendations on medical requirements for flight physicians. This study describes the level of formal competence, experience, and guideline compliance of Norwegian helicopter emergency medical service (HEMS) physicians. METHODS: In May 2013, all HEMS physicians with full-time engagement at Norwegian HEMS bases were invited to participate in a cross-sectional survey using a structured, Web-based questionnaire...
January 2018: Air Medical Journal
https://www.readbyqxmd.com/read/29331744/urinary-metabolomics-study-the-mechanism-of-taohong-siwu-decoction-intervention-in-acute-blood-stasis-model-rats-based-on-liquid-chromatography-coupled-to-quadrupole-time-of-flight-mass-spectrometry
#6
Xiaosong Zhang, Pengling Li, Yongli Hua, Peng Ji, Wanling Yao, Qi Ma, Ziwen Yuan, Yanqiao Wen, Chaoxue Yang, Yanming Wei
Taohong Siwu Decoction (TSD) is a classic prescription in traditional Chinese medicine and is widely used to promote blood circulation to remove blood stasis. However, the effect mechanisms are not yet well understood. Here, a urinary metabolomic approach based on liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (LC/Q-TOF-MS) was conducted to explore the changes in the endogenous metabolites and to assess the integral efficacy of TSD on acute blood stasis model rats. Then, parameters for hemorheology and coagulation functions were detected...
January 2, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29289444/mineralization-by-mesenchymal-stromal-cells-is-variously-modulated-depending-on-commercial-platelet-lysate-preparations
#7
Federica Boraldi, Jorge S Burns, Angelica Bartolomeo, Massimo Dominici, Daniela Quaglino
BACKGROUND AIMS: Numerous cellular models have been developed to investigate calcification for regenerative medicine applications and for the identification of therapeutic targets in various complications associated with age-related diseases. However, results have often been contradictory due to specific culture conditions, cell type ontogeny and aging status. Human platelet lysate (hPL) has been recently investigated as valuable alternative to fetal bovine serum (FBS) in cell culture and bone regeneration...
December 27, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29276981/comparative-metabolism-of-two-major-compounds-in-fructus-corni-extracts-by-gut-microflora-from-normal-and-chronic-nephropathy-rats-in-vitro-by-uplc-q-tof-ms
#8
Jin-Hua Tao, Min Zhao, Shu Jiang, Xue-Lian Pu, Xiao-Yan Wei
Herbal medicines are widely used as therapeutic products in many countries. Fructus Corni, a traditional herb medicine, has been clinically used to cure chronic nephropathy for thousands of years. It could be converted by gut microflora in vivo to shape its pharmacological profiles. Thus, metabolic profiles of major active constituents in Fructus Corni extracts by gut microflora from rats in healthy and nephropathy state were firstly investigated in vitro by ultraperformance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) in this study...
December 18, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29274199/dereplication-guided-isolation-of-a-new-indole-alkaloid-triglycoside-from-the-hooks-of-uncaria-rhynchophylla-by-lc-with-ion-trap-time-of-flight-ms
#9
Jian-Gang Zhang, Xiao-Yan Huang, Yun-Bao Ma, Xue-Mei Zhang, Ji-Jun Chen, Chang-An Geng
Uncaria rhynchophylla (Gou-Teng) as the monarch herb of many formulae (Fufang), e.g. "Tian-Ma-Gou-Teng-Yin", "Ling-Jiao-Gou-Teng-Yin" and "Yi-Gan-San" is a famous traditional Chinese medicine documented in the Chinese pharmacopoeia for mental and cardiovascular diseases. In the traditional Chinese medicine system, only the hook-bearing stems are used as the crude materials for Gou-Teng, and the hooks are always considered more effective than the stems. Focusing on the mono-herb and its active constituents from combinatorial formulae is the core idea of reductionism of traditional Chinese medicine theory...
December 23, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29260546/polydopamine-coated-magnetic-molecularly-imprinted-polymers-with-fragment-template-for-identification-of-pulsatilla-saponins-metabolites-in-rat-feces-with-uplc-q-tof-ms
#10
Yuzhen Zhang, Jia-Wei Zhang, Chong-Zhi Wang, Lian-Di Zhou, Qihui Zhang, Chun-Su Yuan
In this work, a modified pretreatment method using magnetic molecularly imprinted polymers (MMIPs) was successfully applied to study the metabolites of an important botanical with ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS). The MMIPs for glucoside-specific adsorption was used to identify metabolites of Pulsatilla chinensis in rat feces. Polymers were prepared by using Fe3O4 nanoparticles as the supporting matrix, D-glucose as fragment template and dopamine as the functional monomer and cross-linker...
December 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29251355/identification-of-anti-inflammatory-active-ingredients-from-tumuxiang-by-ultra-performance-liquid-chromatography-quadrupole-time-of-flight-mse
#11
Xia Gao, Yuling Ma, Zhuowei Wang, Ruibin Bia, Pei Zhang, Fangdi Hu
The dried roots of Inula helenium L. (IH) and Inula racemosa Hook f. (IR) are used commonly as folk medicine as "tumuxiang" (TMX). The mixing and sharing of IH and IR in clinical use is a universal phenomenon. Modern pharmacological studies confirmed that IH and IR display anti-inflammatory activities. However, the difference in anti-inflammatory pharmacodynamic substances between these two herbs is still unknown. In the present study, the fingerprints of 18 IH and 9 IR samples were established by using UPLC/QTOF-MSE ...
December 18, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29230871/prospective-motion-correction-enables-highest-resolution-time-of-flight-angiography-at-7t
#12
Hendrik Mattern, Alessandro Sciarra, Frank Godenschweger, Daniel Stucht, Falk Lüsebrink, Georg Rose, Oliver Speck
PURPOSE: Higher magnetic field strengths enable time-of-flight (TOF) angiography with higher resolution to depict small-vessel pathologies. However, this potential is limited by the subject's ability to remain motionless. Even small-scale, involuntary motion can degrade vessel depiction, thus limiting the effective resolution. The aim of this study was to overcome this resolution limit by deploying prospectively motion-corrected (PMC) TOF. METHODS: An optical, marker-based, in-bore tracking system was used to update the imaging volume prospectively according to the subject's head motion...
December 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29226353/biotransformation-and-metabolic-profile-of-xian-ling-gu-bao-capsule-a-traditional-chinese-medicine-prescription-with-rat-intestinal-microflora-by-ultra-performance-liquid-chromatography-coupled-with-quadrupole-time-of-flight-tandem-mass-spectrometry-analysis
#13
Meng-Xue Gao, Xi-Yang Tang, Feng-Xiang Zhang, Zhi-Hong Yao, Xin-Sheng Yao, Yi Dai
Xian-Ling-Gu-Bao capsule (XLGB), a well-known traditional Chinese medicine prescription (TCMP), has been used for prevention and treatment of osteoporosis. The safety and efficacy of XLGB have been confirmed based on the principle of evidence-based medicine (EBM). XLGB is usually administered orally, after which its multi-components are brought into contacted with intestinal microflora in the alimentary tract and biotransformed. However, investigations on the comprehensive metabolic profile of XLGB are absent...
December 11, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29202769/impact-of-systolic-blood-pressure-limits-on-the-diagnostic-value-of-triage-algorithms
#14
Tobias Neidel, Nicolas Salvador, Axel R Heller
BACKGROUND: Major incidents are characterized by a lack of resources compared to an overwhelming number of casualties, requiring a prioritization of medical treatment. Triage algorithms are an essential tool for prioritizing the urgency of treatment for patients, but the evidence to support one over another is very limited. We determined the influence of blood pressure limits on the diagnostic value of triage algorithms, considering if pulse should be palpated centrally or peripherally...
December 4, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29200732/two-new-phenolic-glycosides-from-the-aerial-part-of-dryopteris-erythrosora
#15
Guijae Yoo, SeonJu Park, Heejung Yang, Xuan Nhiem Nguyen, Nanyoung Kim, Jun Hyung Park, Seung Hyun Kim
Background: Dryopteris erythrosora (D.C. Eaton) Kuntze is a species of fern in the family of Dryopteridaceae, which is distributed throughout East Asia. The genus Dryopteris has been used as traditional medicine, especially to treat hepatitis and protect liver. However, only few studies of chemical constituents of D. erythrosora have been conducted so far. Objective: In this study, we investigated the phytochemical constituents of D. erythrosora. Materials and Methods: The 80% methanol extract of the aerial part of D...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29200730/comparative-proteomic-analysis-of-three-gelatinous-chinese-medicines-and-their-authentications-by-tryptic-digested-peptides-profiling-using-matrix-assisted-laser-desorption-ionization-time-of-flight-time-of-flight-mass-spectrometry
#16
Huan Yang, Jie Zheng, Hai-Yan Wang, Nan Li, Ya-Ya Yang, Yu-Ping Shen
Background: Gelatinous Chinese medicines (GCMs) including Asini Corii Colla, Testudinis Carapacis ET Plastri Colla, and Cervi Cornus Colla, were made from reptile shell or mammalian skin or deer horn, and consumed as a popular tonic, as well as hemopoietic and hemostatic agents. Misuse of them would not exert their functions, and fake or adulterate products have caused drug market disorder and affected food and drug safety. GCMs are rich in denatured proteins, but insufficient in available DNA fragments, hence commonly used cytochrome c oxidase I barcoding was not successful for their authentication...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29198447/fabrication-and-evaluation-of-magnetic-phosphodiesterase-5-linked-nanoparticles-as-adsorbent-for-magnetic-dispersive-solid-phase-extraction-of-inhibitors-from-chinese-herbal-medicine-prior-to-ultra-high-performance-liquid-chromatography-quadrupole-time-of-flight
#17
Yi Tao, Xianghui Gu, Weidong Li, Baochang Cai
In the present study, the preparation of the magnetic phosphodiesterase-5 linked Fe3O4@ SiO2 nanoparticles was successfully achieved by amide reaction and the magnetic phosphodiesterase-5 linked Fe3O4@SiO2 nanoparticles were evaluated as a new adsorbent for magnetic dispersive solid-phase extraction of ligands from medicinal plant samples before the analysis by UHPLC-Q-TOF/MS. The prepared phosphodiesterase-5 linked Fe3O4@SiO2 nanoparticles were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, vibration sample magnetometer and potential laser particle size analyzer...
November 27, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29183656/unbiased-plasma-metabolomics-reveal-the-correlation-of-metabolic-pathways-and-prakritis-of-humans
#18
Amey Shirolkar, Sutapa Chakraborty, Tusharkanti Mandal, Rajesh Dabur
BACKGROUND: Ayurveda, an ancient Indian medicinal system, has categorized human body constitutions in three broad constitutional types (prakritis) i.e. Vata, Pitta and Kapha. OBJECTIVE: Analysis of plasma metabolites and related pathways to classify Prakriti specific dominant marker metabolites and metabolic pathways. MATERIALS AND METHODS: 38 healthy male individuals were assessed for dominant Prakritis and their fasting blood samples were collected...
November 25, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29183535/major-general-malcolm-c-grow-m-d-1887-1960-soldier-surgeon-airman
#19
Tyler R Walker, Scott W Cowan, Charles J Yeo, Alec C Beekley
World War I (WWI) and World War II (WWII) both presented physicians with challenges unseen before in history. New inventions such as the machine gun and poisonous gas in WWI and the massive aircraft battles in WWII required physicians and surgeons to adapt and innovate to provide the best care and preventative measures for service members. One physician, Malcolm Cummings Grow, distinguished himself as an innovator, a researcher, and a leader. His contributions to the field of military medicine, flight surgery, and medical administration led to countless lives being saved during the two World Wars and laid the groundwork for many different combat protective equipment still in use today...
November 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/29178373/geographic-impact-evaluation-of-the-quality-of-alismatis-rhizoma-by-untargeted-metabolomics-and-quantitative-assay
#20
Jia Wu, Wenzhi Yang, Huiqin Pan, Shuai Yao, Wanying Wu, Dean Guo
The geographic impact on the quality of Alismatis Rhizoma (derived from the tuber of Alisma orientale), a reputable diuretic traditional Chinese medicine, has seldom been evaluated. Here a metabolomics-driven approach targeting the bioactive protostane triterpenes was developed, by incorporating ultra high performance liquid chromatography with quadrupole time-of-flight mass spectrometry based untargeted metabolite profiling and multiple reaction monitoring quantitative assay, to probe the triterpene differences between Alismatis Rhizoma samples collected from Sichuan, Fujian, and Jiangxi Provinces...
November 27, 2017: Journal of Separation Science
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