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https://www.readbyqxmd.com/read/28802227/anti-inflammatory-effects-of-shufengjiedu-capsule-for-upper-respiratory-infection-via-the-erk-pathway
#1
Yanmei Li, Nianwei Chang, Yanqi Han, Mengge Zhou, Jie Gao, Yuanyuan Hou, Min Jiang, Tiejun Zhang, Gang Bai
BACKGROUND: Shufengjiedu Capsule (SFJD) is a type of Chinese traditional medicine compound for the treatment of acute upper respiratory tract infection. The present work aims to decipher the mechanism of SFJD. METHODS: In this study, we used target prediction and RNA sequence (RNA-Seq) based on transcriptome analysis to clarify the inflammation-eliminating mechanism of SFJD. Firstly, Pseudomonas aeruginosa (PAK) was used to induce acute lung injury in KM mice. After being treated by SFJD, the differently expressed genes were analyzed by RNA-Seq...
August 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28802088/screening-bioactive-quality-control-markers-of-qishenyiqi-dripping-pills-based-on-the-relationship-between-the-ultra-high-performance-liquid-chromatography-fingerprint-and-vascular-protective-activity
#2
Limeng Zhuo, Jingjing Peng, Yunli Zhao, Dongxiang Li, Xiuman Xie, Ling Tong, Zhiguo Yu
Traditional Chinese medicine consists of complex phytochemical constituents. Selecting appropriately analytical markers of traditional Chinese medicine is a critical step in quality control. Currently, the combination of fingerprinting and efficacy evaluation is considered as a useful method for screening active ingredients in complex mixtures. This study was designed to develop an orthogonal partial least squares model for screening bioactive quality control markers of QishenYiqi dripping pills based on the fingerprint-efficacy relationship...
August 12, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28800526/identification-and-determination-of-related-substances-of-ceftaroline-fosamil-in-medicinal-product-by-high-performance-liquid-chromatography-with-diode-array-detection-and-tandem-mass-spectrometry
#3
Izabela Karpiuk, Katarzyna Michalska, Katarzyna Bus, Monika Kiljan, Stefan Tyski
Ceftaroline fosamil, the prodrug of ceftaroline, is an advanced-generation cephalosporin antibacterial agent approved for treatment in the European Union in 2012. The drug is dedicated to curing complicated skin and soft tissue infections and community-acquired pneumonia. The developed analytical method of high performance liquid chromatography (HPLC) followed by diode array detector (DAD) set at 243nm was used to identify and determine degradation products of ceftaroline fosamil. The elaborated method demonstrated good selectivity and linearity [r>0...
August 1, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28799210/whole-brain-arteriography-and-venography-using-improved-velocity-selective-saturation-pulse-trains
#4
Wenbo Li, Feng Xu, Michael Schär, Jing Liu, Taehoon Shin, Yansong Zhao, Peter C M van Zijl, Bruce A Wasserman, Ye Qiao, Qin Qin
PURPOSE: To develop velocity-selective (VS) MR angiography (MRA) protocols for arteriography and venography with whole-brain coverage. METHODS: Tissue suppression using velocity-selective saturation (VSS) pulse trains is sensitive to radiofrequency field (B1 +) inhomogeneity. To reduce its sensitivity, we replaced the low-flip-angle hard pulses in the VSS pulse train with optimal composite (OCP) pulses. Additionally, new pulse sequences for arteriography and venography were developed by placing spatially selective inversion pulses with a delay to null signals from either venous or arterial blood...
August 10, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28791806/ultra-high-performance-liquid-chromatography-coupled-with-electrospray-ionization-quadrupole-time-of-flight-mass-spectrometry-for-the-rapid-analysis-of-constituents-in-the-traditional-chinese-medicine-formula-wu-ji-bai-feng-pill
#5
Shengnan Duan, Wen Qi, Siwen Zhang, Kunkun Huang, Dan Yuan
An ultra high performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry method in both positive and negative ion modes was established in order to comprehensively investigate the major constituents in Wu-Ji-Bai-Feng-Pill. Briefly, a Waters ACQUITY UPLC HSS C18 column was used to separate the aqueous extract of Wu-Ji-Bai-Feng-Pill. 0.1% formic acid in acetonitrile and 0.1% aqueous formic acid v/v were used as the mobile phase. All analytes were determined using quadrupole time-of-flight mass spectrometry with electrospray ionization source in positive and negative ion modes...
August 9, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28770552/extracts-of-terminalia-sericea-enhance-cell-migratory-activity-of-endothelial-hybrid-and-fibroblast-cells-in-vitro
#6
Hafiza Parkar, Olayinka Ayobami Aiyegoro, Paul Steenkamp, Vanessa Steenkamp
Terminalia sericea is a plant that has been used amongst others medicinally to treat wounds. The aim of this study was to assess the in vitro wound healing ability of T. sericea. Hot water, methanol, ethyl acetate, and hexane extracts were prepared. Thin layer chromatography (TLC) and ultra-performance liquid chromatography time of flight mass spectrometry (UPLC-TOF-MS) were used to determine the phytochemical classes and genus specific compounds present in the plant. Cytotoxicity was assessed in the SC-1 fibroblast and EA...
August 2, 2017: Planta Medica
https://www.readbyqxmd.com/read/28765928/metabolic-characteristics-of-rhizoma-coptidis-intervention-in-spontaneously-hypertensive-rats-insights-gained-from-metabolomics-analysis-of-serum
#7
Wenqing Yang, Yue Deng, Honglei Zhou, Haiqiang Jiang, Yunlun Li, Yangjun Chu, Xiaoming Wang, Lili Gong
The present study aimed to investigate the intervention mechanisms of Rhizoma Coptidis using spontaneously hypertensive rats. A serum metabolomics analysis was performed with high performance liquid chromatography‑quadrupole/time of flight mass spectrometer in positive mode. The obtained data were further analyzed by principal component and partial least‑squares discriminant analysis to reveal differentiating metabolites. The pattern of metabolites in the serum after Rhizoma Coptidis exhibited distinct alterations...
July 31, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28749432/screening-hepatotoxic-components-in-euodia-rutaecarpa-by-uhplc-qtof-ms-based-on-the-spectrum-toxicity-relationship
#8
Jian Liang, Yang Chen, Gang Ren, Wei Dong, Min Shi, Li Xiong, Jiankang Li, Jiahao Dong, Fei Li, Jinbin Yuan
Euodia rutaecarpa is a common traditional Chinese medicine (TCM) in clinical practice, having the ability to suppress pain and cease coughing; however, with the increasing reports showing that it is toxic, particularly hepatotoxic, the concerns raised by what cause its toxicity is growing. In the current study, an analysis method based on the spectrum effect has been employed to screen the major hepatotoxic components in Euodia rutaecarpa so that the toxic material's basis would be elucidated. A fingerprinting method of the Euodia rutaecarpa extracts (which were petroleum ether, chloroform, ethyl acetate, n-butanol, and water) using ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometer (UHPLC-QTOF/MS) has been developed...
July 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28744243/the-odyssey-of-dental-anxiety-from-prehistory-to-the-present-a-narrative-review
#9
REVIEW
Enrico Facco, Gastone Zanette
Dental anxiety (DA) can be considered as a universal phenomenon with a high prevalence worldwide; DA and pain are also the main causes for medical emergencies in the dental office, so their prevention is an essential part of patient safety and overall quality of care. Being DA and its consequences closely related to the fight-or-flight reaction, it seems reasonable to argue that the odyssey of DA began way back in the distant past, and has since probably evolved in parallel with the development of fight-or-flight reactions, implicit memory and knowledge, and ultimately consciousness...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28727859/space-flight-associated-neuro-ocular-syndrome
#10
Andrew G Lee, Thomas H Mader, C Robert Gibson, William Tarver
New and unique physiologic and pathologic systemic and neuro-ocular responses have been documented in astronauts during and after long-duration space flight. Although the precise cause remains unknown, space flight-associated neuro-ocular syndrome (SANS) has been adopted as an appropriate descriptive term. The Space Medicine Operations Division of the US National Aeronautics and Space Administration (NASA) has documented the variable occurrence of SANS in astronauts returning from long-duration space flight on the International Space Station...
July 20, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28705508/fingerprint-analysis-of-gelsemium-elegans-by-hplc-followed-by-the-targeted-identification-of-chemical-constituents-using-hplc-coupled-with-quadrupole-time-of-flight-mass-spectrometry
#11
Yan-Chun Liu, Li Lin, Pi Cheng, Zhi-Liang Sun, Yong Wu, Zhao-Ying Liu
Gelsemium elegans, which is a genus of the family Loganiaease, is commonly used as a traditional medicine for promoting animal growth and treating rheumatoid arthritis pain and neuropathic pain, among others. In this study, we first established a valid high-performance liquid chromatography (HPLC) method for the fingerprint analysis of Gelsemium elegans samples. Then, the comprehensive detection of chemical constituents from the samples was performed using HPLC coupled with quadrupole-time-of-flight mass spectrometry...
July 10, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28704842/analysis-of-metabolomic-profile-of-fermented-orostachys-japonicus-a-berger-by-capillary-electrophoresis-time-of-flight-mass-spectrometry
#12
Gitishree Das, Jayanta Kumar Patra, Sun-Young Lee, Changgeon Kim, Jae Gyu Park, Kwang-Hyun Baek
Microbial cell performance in food biotechnological processes has become an important concern for improving human health worldwide. Lactobacillus plantarum, which is widely distributed in nature, is a lactic acid bacterium with many industrial applications for fermented foods or functional foods (e.g., probiotics). In the present study, using capillary electrophoresis time of flight mass spectrometry, the metabolomic profile of dried Orostachys japonicus A. Berger, a perennial medicinal herb with L. plantarum was compared with that of O...
2017: PloS One
https://www.readbyqxmd.com/read/28702943/screening-and-identification-of-metabolites-of-two-kinds-of-main-active-ingredients-and-hepatotoxic-pyrrolizidine-alkaloids-hpas-in-rat-after-lavage-farfarae-flos-extract-by-uhplc-q-tof-ms-mass-spectrometry
#13
Xiaoye Cheng, Man Liao, Xinpeng Diao, Yupeng Sun, Lantong Zhang
Farfarae Flos, the dried flower buds of Tussilago farfara L., is usually used to treat coughs, bronchitic and asthmatic conditions as an important traditional Chinese medicine. Tussilagone and methl butyric acid tussilagin ester are seen as representatives of two kinds of active substances. Besides, the pyrrolizidine alkaloids (HPAs), mainly senkirkine and senecionine, presented in the herb can be hepatoxic. In this study, a rapid and sensitive ultra high performance liquid chromatography coupled with hybrid triple quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS/MS) method is successfully applied to identify the metabolites of tussilagone, methl butyric acid tussilagin ester , senkirkine and senecionine...
July 12, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28701067/metabolomic-approach-to-understand-the-acute-and-chronic-hepatotoxicity-of-veratrum-nigrum-extract-in-mice-based-on-ultra-high-performance-liquid-chromatography-coupled-with-quadrupole-time-of-flight-mass-spectrometry
#14
Ziheng Wei, Qingqing Qian, Xu Dong, Na Li, Guangchun Sun, Songyan Gao, Xin Dong
Veratrum nigrum L. (VN) is a poisonous traditional Chinese Medicine herb with thousands of years in China. Clinical studies have shown that VN has ability to cause hepatotoxicity, which severely limits its clinical use. The mechanism of its hepatotoxicity has not been fully elucidated. The purpose of this study was to develop and characterize a model of acute and chronic hepatotoxicity induced by Veratrum nigrum L. extract (VNE) to understand the mechanism by the liver tissue metabolomics approach based on ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOFMS)...
July 13, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28700524/challenges-for-detecting-valproic-acid-in-a-nontargeted-urine-drug-screening-method
#15
Jeffrey D Pope, Marion J Black, Olaf H Drummer, Hans G Schneider
BACKGROUND: Valproic acid (VPA) is a widely prescribed medicine, and acute toxicity is possible. As such, it should be included in any nontargeted urine drug screening method. In many published liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS/MS) methods, VPA is usually measured using a pseudo-multiple reaction monitoring (MRM) transition. We investigate a simple ultra-high-performance liquid chromatography-quadrupole time-of-flight (QTof) approach to detect the presence of VPA with more confidence...
August 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28688664/a-novel-flight-surgeon-training-model-at-a-joint-military-and-civilian-surgical-residency-program
#16
Erik S DeSoucy, Scott A Zakaluzny, Joseph M Galante
BACKGROUND: Graduating military preliminary interns are often required to fill flight surgeon billets. General surgery preliminary interns get experience evaluating surgical and trauma patients, but receive very little training in primary care and flight medicine. At a joint military and civilian training program, we developed a supplemental curriculum to help transition our interns into flight medicine. METHODS: From 2013 to 2016, we developed a lecture series focused on aerospace medicine, primary care, and specialty topics including dermatology, ophthalmology, orthopedics, pediatrics, psychiatry, and women's health...
July 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28687866/quantification-improvement-and-harmonization-of-small-lesion-detection-with-state-of-the-art-pet
#17
REVIEW
Charlotte S van der Vos, Daniëlle Koopman, Sjoerd Rijnsdorp, Albert J Arends, Ronald Boellaard, Jorn A van Dalen, Mark Lubberink, Antoon T M Willemsen, Eric P Visser
In recent years, there have been multiple advances in positron emission tomography/computed tomography (PET/CT) that improve cancer imaging. The present generation of PET/CT scanners introduces new hardware, software, and acquisition methods. This review describes these new developments, which include time-of-flight (TOF), point-spread-function (PSF), maximum-a-posteriori (MAP) based reconstruction, smaller voxels, respiratory gating, metal artefact reduction, and administration of quadratic weight-dependent (18)F-fluorodeoxyglucose (FDG) activity...
July 8, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28687792/maldi-tof-ms-as-a-novel-tool-for-the-estimation-of-postmortem-interval-in-liver-tissue-samples
#18
Chengzhi Li, Zhengdong Li, Ya Tuo, Dong Ma, Yan Shi, Qinghua Zhang, Xianyi Zhuo, Kaifei Deng, Yijiu Chen, Zhenyuan Wang, Ping Huang
Estimation of the postmortem interval (PMI) is a complicated task in forensic medicine, especially during homicide and unwitnessed death investigations. Many biological, chemical, and physical indicators can be used to determine the postmortem interval, but most are not accurate. Here, we present a novel matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) method that can be used for the estimation of PMI using molecular images and multivariate analyses. In this study, we demonstrate that both rat and human liver tissues of various PMIs (0, 2, 4, and 6days) can be discriminated using MALDI imaging and principal component analysis (PCA)...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28683180/multiconstituent-identification-in-root-branch-and-leaf-extracts-of-juglans-mandshurica-using-ultra-high-performance-liquid-chromatography-with-quadrupole-time-of-flight-mass-spectrometry
#19
Tian-Min Wang, Jing Liu, Tao Yi, Yan-Jun Zhai, Hui Zhang, Hu-Biao Chen, Shao-Qing Cai, Ting-Guo Kang, Zhong-Zhen Zhao
As a folk medicinal plant, Juglans mandshurica has been used for the treatment of cancer. Different organs of this plant showed anti-tumor activity in clinic and laboratory. Comparative identification of constituents in different plant organs is essential for investigation of the relationship between chemical constituents and pharmacological activities. For this aim, the roots, branches, and leaves of J. mandshurica were extracted with 50% v/v methanol and then subjected to ultra high performance liquid chromatography with quadrupole time-of-flight mass spectrometry analysis conducted under low and high energy...
July 6, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28677911/characterization-and-discrimination-of-raw-and-vinegar-baked-bupleuri-radix-based-on-uhplc-q-tof-ms-coupled-with-multivariate-statistical-analysis
#20
Tianli Lei, Shifeng Chen, Kai Wang, Dandan Zhang, Lin Dong, Chongning Lv, Jing Wang, Jincai Lu
Bupleuri Radix is a commonly used herb in clinic, and raw and vinegar-baked Bupleuri Radix are both documented in the Pharmacopoeia of People's Republic of China. According to the theories of traditional Chinese medicine, Bupleuri Radix possesses different therapeutic effects before and after processing. However, the chemical mechanism of this processing is still unknown. In this study, an ultra-high performance liquid chromatography with quadruple time-of-flight mass spectrometry coupled with multivariate statistical analysis including principal component analysis and orthogonal partial least square-discriminant analysis was developed to holistically compare the difference between raw and vinegar-baked Bupleuri Radix for the first time...
July 5, 2017: Biomedical Chromatography: BMC
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