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https://www.readbyqxmd.com/read/29040937/a-sensitive-hplc-ms-method-for-simultaneous-determination-of-thirteen-components-in-rat-plasma-and-its-application-to-pharmacokinetic-study-of-tanreqing-injection
#1
Su-Xiang Feng, Xian-He Li, Meng-Meng Wang, Rui Hao, Meng-Meng Li, Lei Zhang, Zhe Wang
A rapid, sensitive and selective method based on high-performance liquid chromatography coupled with Q-Exactive mass spectrometry was developed and validated for simultaneous quantification of thirteen components in rat plasma, including chlorogenic acid, 5-caffeoylquinic acid, 4-caffeoylquinic acid, luteoloside, isochlorogenic acid A, B and C, scutellarin, baicalin, wogonin, baicalein, phillyrin and forsythoside A. After precipitating proteins from the plasma samples with methanol, chromatographic separation of the thirteen components was achieved by using an XBridge™ C18 column (2...
October 13, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29040879/influence-of-sexual-behavior-of-dorper-rams-treated-with-glutamate-and-or-testosterone-on-reproductive-performance-of-anovulatory-ewes
#2
Guadalupe Calderón-Leyva, Cesar A Meza-Herrera, Rafael Martinez-Rodriguez, Oscar Angel-García, Raymundo Rivas-Muñoz, Juan V Delgado-Bermejo, Francisco G Véliz-Deras
The aim of this study was to determine if exogenous administration of glutamate and (or) testosterone to male rams during the season of reproductive arrest is able to re-activate male sexual behavior and, later on, to promote through the male effect, both sexual and reproductive competence of anovulatory nulliparous ewes. Therefore, an experiment was performed under long-day photoperiods (spring; photo-reproductive arrest, 26°N). Dorper rams were randomly divided into four homogeneous experimental groups (n = 5 males each) regarding live weight (LW), body condition score (BCS), scrotal circumference (SC) and odor intensity (OI)...
October 9, 2017: Theriogenology
https://www.readbyqxmd.com/read/29040867/long-term-follow-up-of-anterior-thalamic-deep-brain-stimulation-in-epilepsy-a-11-year-single-center-experience
#3
Seong Hoon Kim, Sung Chul Lim, Jiyeon Kim, Byung-Chul Son, Kyung Jin Lee, Young-Min Shon
PURPOSE: Anterior thalamic deep brain stimulation (ATN DBS) is an emerging, effective treatment for patients with drug-resistant epilepsy, but long-term results on its efficacy and safety are lacking. To evaluate the long-term efficacy and safety of ATN DBS treatment, as well as predictors of its success, in patients with drug-refractory epilepsy (DRE). METHOD: We retrospectively studied clinical outcomes in 29 consecutive refractory epilepsy patients treated by a single DBS team (two neurosurgeons, four neurologists) over an 11-year period, for whom follow-up was performed for up to 137 months (mean, 74...
October 14, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29040774/assessing-the-between-background-stability-of-metabolic-effects-arising-from-lignin-related-transgenic-modifications-in-two-populus-hybrids-using-non-targeted-metabolomics
#4
Andrew R Robinson, Rebecca Dauwe, Shawn D Mansfield
The advances in 'high-throughput' biology have significantly expanded our fundamental understanding of complex biological processes inherent to tree growth and development. Relative to the significant achievements attained with whole genome re-sequencing and transcriptomics efforts, the development and power of post-transcriptional tools such as proteomics and metabolomics continue to lag behind in tree biology. However, the inclusion of these powerful functional genomics platforms should substantially enable systems biology assessments of tree development, physiology and response(s) to biotic and abiotic stresses...
October 10, 2017: Tree Physiology
https://www.readbyqxmd.com/read/29040754/development-of-unique-cytotoxic-chimeric-antigen-receptors-based-on-human-scfv-targeting-b7h6
#5
Casey K Hua, Albert T Gacerez, Charles L Sentman, Margaret E Ackerman
As a stress-inducible natural killer (NK) cell ligand, B7H6 plays a role in innate tumor immunosurveillance and is a fairly tumor selective marker expressed on a variety of solid and hematologic cancer cells. Here, we describe the isolation and characterization of a new family of single chain fragment variable (scFv) molecules targeting the human B7H6 ligand. Through directed evolution of a yeast surface displayed non-immune human-derived scFv library, eight candidates comprising a single family of clones differing by up to four amino acid mutations and exhibiting nM avidities for soluble B7H6-Ig were isolated...
October 11, 2017: Protein Engineering, Design & Selection: PEDS
https://www.readbyqxmd.com/read/29040688/the-online-tabloid-proteome-an-annotated-database-of-protein-associations
#6
Surya Gupta, Demet Turan, Jan Tavernier, Lennart Martens
A complete knowledge of the proteome can only be attained by determining the associations between proteins, along with the nature of these associations (e.g. physical contact in protein-protein interactions, participation in complex formation or different roles in the same pathway). Despite extensive efforts in elucidating direct protein interactions, our knowledge on the complete spectrum of protein associations remains limited. We therefore developed a new approach that detects protein associations from identifications obtained after re-processing of large-scale, public mass spectrometry-based proteomics data...
October 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29040642/dynamic-dna-binding-junction-recognition-and-g4-melting-activity-underlie-the-telomeric-and-genome-wide-roles-of-human-cst
#7
Anukana Bhattacharjee, Yongyao Wang, Jiajie Diao, Carolyn M Price
Human CST (CTC1-STN1-TEN1) is a ssDNA-binding complex that helps resolve replication problems both at telomeres and genome-wide. CST resembles Replication Protein A (RPA) in that the two complexes harbor comparable arrays of OB-folds and have structurally similar small subunits. However, the overall architecture and functions of CST and RPA are distinct. Currently, the mechanism underlying CST action at diverse replication issues remains unclear. To clarify CST mechanism, we examined the capacity of CST to bind and resolve DNA structures found at sites of CST activity...
October 10, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29040581/effect-of-school-eye-health-promotion-on-children-s-eye-health-literacy-in-vietnam
#8
Prakash Paudel, Phung Thi Yen, Vilas Kovai, Thomas Naduvilath, Suit May Ho, Nguyen Viet Giap, Brien A Holden
Health promotion intervention in schools is a useful strategy to improve students' health awareness. The purpose of this study was to assess the effect of eye health promotion interventions on eye health literacy in school children in Vietnam. A piloted questionnaire was administered to 300 children from five secondary schools in Ba Ria-Vung Tau, Vietnam at baseline and re-administered after the eye health promotion interventions. McNemar chi-square and logistic regression were used for statistical analysis...
October 6, 2017: Health Promotion International
https://www.readbyqxmd.com/read/29040568/u-47700-a-not-so-new-opioid
#9
Timothy P Rohrig, Samuel A Miller, Tyson R Baird
U-47700 was developed by the Upjohn Co. in the 1970s as part of their search for a selective μ-opioid agonist with similar potency as morphine. U-47700 has re-emerged recently in the illicit drug market and is easily and cheaply obtained via the internet as well as on the street, many times falsely sold as another drug. Several fatalities from U-47700 have been reported in scientific literature, often in combination with other intoxicants. This case report describes the first death in south-central Kansas resulting solely from U-47700 intoxication: a 26-year-old white male found dead in his bedroom with apparent drug paraphernalia...
October 11, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29040518/challenges-in-comparing-the-non-vitamin-k-antagonist-oral-anticoagulants-for-atrial-fibrillation-related-stroke-prevention
#10
A John Camm, Keith A A Fox, Eric Peterson
The aim of this review is to provide context for meta-analyses interpreting data from phase III stroke prevention studies of non-vitamin K antagonist oral anticoagulants (NOACs) in patients with non-valvular atrial fibrillation (NVAF). Differences between the four phase III NOAC stroke prevention studies in patients with NVAF (ROCKET AF, ARISTOTLE, RE-LY, and ENGAGE AF), their potential impact on outcomes, and inter-study differences were evaluated, as well as the potential role of real-world evidence in evaluating NOACs in this setting...
October 13, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29040444/re-establishment-of-energy-balance-in-a-male-mouse-model-with-pomc-neuron-deletion-of-bmpr1a
#11
Kristy L Townsend, Christopher Madden, Magdalena Blaszkiewicz, Lindsay McDougall, Domenico Tupone, Matthew D Lynes, Yuji Mishina, Paul Yu, Shaun Morrison, Yu-Hua Tseng
The regulation of energy balance involves complex processes in the brain, including coordination by hypothalamic neurons that contain pro-opiomelanocortin (POMC). We previously demonstrated that central bone morphogenetic protein 7 (BMP7) reduces appetite. Now we show that a type 1 BMP receptor, BMPR1A, is co-localized with POMC neurons and POMC-BMPR1A-KO mice are hyperphagic, revealing physiological involvement of BMP signaling in anorectic POMC neurons in the regulation of appetite. Surprisingly, the hyperphagic POMC-BMPR1A-KO mice exhibit a lack of obesity, even on a 45% high-fat diet...
October 9, 2017: Endocrinology
https://www.readbyqxmd.com/read/29040394/compound-image-segmentation-of-published-biomedical-figures
#12
Pengyuan Li, Xiangying Jiang, Chandra Kambhamettu, Hagit Shatkay
Motivation: Images convey essential information in biomedical publications. As such, there is a growing interest within the bio-curation and the bio-databases communities, to store images within publications as evidence for biomedical processes and for experimental results. However, many of the images in biomedical publications are compound images consisting of multiple panels, where each individual panel potentially conveys a different type of information. Segmenting such images into constituent panels is an essential first step toward utilizing images...
October 10, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29040337/a-comparison-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-from-clinical-recreational-water-and-wastewater-samples-associated-in-time-and-location
#13
Silje B Jørgensen, Arne V Søraas, Lotte S Arnesen, Truls M Leegaard, Arnfinn Sundsfjord, Pål A Jenum
Extended spectrum β-lactamase producing Escherichia coli (ESBL-EC) are excreted via effluents and sewage into the environment where they can re-contaminate humans and animals. The aim of this observational study was to detect and quantify ESBL-EC in recreational water and wastewater, and perform a genetic and phenotypic comparative analysis of the environmental strains with geographically associated human urinary ESBL-EC. Recreational fresh- and saltwater samples from four different beaches and wastewater samples from a nearby sewage plant were filtered and cultured on differential and ESBL-selective media...
2017: PloS One
https://www.readbyqxmd.com/read/29040318/rapid-reversal-of-innate-immune-dysregulation-in-blood-of-patients-and-livers-of-humanized-mice-with-hcv-following-daa-therapy
#14
Matthew A Burchill, Justin A Roby, Nanette Crochet, Megan Wind-Rotolo, Amy E Stone, Michael G Edwards, Rachael J Dran, Michael S Kriss, Michael Gale, Hugo R Rosen
RESULTS: First, in patients receiving two different combinations of DAAs, we found that DAAs induced not only rapid viral clearance, but also a re-setting of antiviral immune responses in the peripheral blood. Specifically, we see a rapid decline in the expression of genes associated with chronic IFN stimulation (IFIT3, USP18, IFIT1) as well as a rapid decline in genes associated with inflammation (IL1β, CXCL10, CXCL11) in the peripheral blood that precedes the complete removal of virus from the blood...
2017: PloS One
https://www.readbyqxmd.com/read/29040310/accumulation-of-advanced-glycation-end-products-evaluated-by-skin-autofluorescence-and-incident-frailty-in-older-adults-from-the-bordeaux-three-city-cohort
#15
Sophie Pilleron, Kalina Rajaobelina, Maturin Tabue Teguo, Jean-François Dartigues, Catherine Helmer, Cécile Delcourt, Vincent Rigalleau, Catherine Féart
AIM: We analyzed the cross-sectional and prospective relationships between the accumulation of advanced glycation end products (AGE), assessed by skin autofluorescence (AF) and frailty and its components. METHODS: A total of 423 participants of the Bordeaux sample of the Three-City study 75 years of age or older in 2009-2010 were included in the cross-sectional analysis. Among them, 255 initially non-frail participants were re-examined 4 years later. Skin AF (arbitrary units (AU)) was measured using the AGE Reader...
2017: PloS One
https://www.readbyqxmd.com/read/29040301/surveying-predictors-of-late-life-longitudinal-change-in-daily-activity-energy-expenditure
#16
Vincenzo Valiani, Sandrine Sourdet, Dale A Schoeller, Dawn C Mackey, Douglas C Bauer, Nancy W Glynn, Yosuke Yamada, Tamara B Harris, Todd M Manini
BACKGROUND: Total daily energy expenditure (TEE) is composed of resting metabolic rate (RMR), post-prandial thermogenesis and activity energy expenditure (AEE). Higher AEE is strongly associated with lower mortality and physical limitations among older adults, but factors that predict changes in AEE in septu and octogenarians are not clearly understood. OBJECTIVE: To identify factors associated with late-life longitudinal change in AEE. DESIGN: Energy expenditure was re-assessed in 83 participants (average age at baseline, 74...
2017: PloS One
https://www.readbyqxmd.com/read/29040262/serological-and-spatial-analysis-of-alphavirus-and-flavivirus-prevalence-and-risk-factors-in-a-rural-community-in-western-kenya
#17
Elysse N Grossi-Soyster, Elizabeth A J Cook, William A de Glanville, Lian F Thomas, Amy R Krystosik, Justin Lee, C Njeri Wamae, Samuel Kariuki, Eric M Fèvre, A Desiree LaBeaud
Alphaviruses, such as chikungunya virus, and flaviviruses, such as dengue virus, are (re)-emerging arboviruses that are endemic in tropical environments. In Africa, arbovirus infections are often undiagnosed and unreported, with febrile illnesses often assumed to be malaria. This cross-sectional study aimed to characterize the seroprevalence of alphaviruses and flaviviruses among children (ages 5-14, n = 250) and adults (ages 15 ≥ 75, n = 250) in western Kenya. Risk factors for seropositivity were explored using Lasso regression...
October 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29040202/re-examination-of-a-battlefield-trauma-golden-hour-policy
#18
Jeffrey T Howard, Russ S Kotwal, Alexis R Santos, Matthew J Martin, Zsolt T Stockinger
BACKGROUND: Most combat casualties who die, do so in the prehospital setting. Efforts directed toward alleviating prehospital combat trauma death, known as killed in action (KIA) mortality, have the greatest opportunity for eliminating preventable death. METHODS: 4,542 military casualties injured in Afghanistan from September 11, 2001 to March 31, 2014 were included in this retrospective analysis to evaluate proposed explanations for observed KIA reduction following a mandate by Secretary of Defense Robert M...
October 16, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29039999/treatment-and-survival-of-childhood-neuroblastoma-evidence-from-a-population-based-study-in-the-united-states
#19
Dairmuid Coughlan, Matthew Gianferante, Charles F Lynch, Jennifer L Stevens, Linda C Harlan
BACKGROUND: Childhood neuroblastoma describes a heterogeneous group of extracranial solid tumors, that are treated per risk profile. We sought to describe treatment patterns and survival using population-based data from throughout the United States. MATERIALS AND METHODS: Using the National Cancer Institute (NCI)'s Patterns of Care data, we analyzed treatment provided to newly diagnosed, histologically confirmed neuroblastoma patients in 2010 and 2011, registered to one of 14 Surveillance, Epidemiology, and End Results (SEER) cancer registries...
October 17, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/29039937/concentration-independent-stereodynamic-g-probe-for-chiroptical-enantiomeric-excess-determination
#20
Paolo Zardi, Klaus Wurst, Giulia Licini, Cristiano Zonta
Enantiomeric excess determination is crucial in many aspects of science ranging from synthesis to materials. Within this subject, the use of molecular sensors coupled with chiroptical techniques is a straightforward approach to the stereochemical analysis of chiral molecules, especially in terms of process immediacy and labor. Ste-reodynamic probes typically consist of racemic mixtures of rapidly interconverting enantiomeric conformers able to recognize a chiral analyte and greatly amplify its chiroptical readout...
October 17, 2017: Journal of the American Chemical Society
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