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https://www.readbyqxmd.com/read/29786931/real-time-monitoring-of-prodrug-activation-by-direct-mode-of-chemiluminescence
#1
Doron Shabat, Samer Gnaim, Anna Scomparin, Sayantan Das, Ronit Satchi-Fainaro
The majority of theranostic prodrugs reported so far relay information through a fluorogenic response generated upon release of the active chemotherapeutic agent. A chemiluminescence detection mode offers significant advantages over fluorescence, mainly due to the superior signal-to-noise ratio of chemiluminescence. Here we report the design and synthesis of the first theranostic prodrug monitored by a chemiluminescence diagnostic mode. As a representative model we prepared a prodrug from the chemotherapeutic monomethyl auristatin E designed for activation by β-galactosidase...
May 22, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29786913/new-insights-into-the-anion-transport-selectivity-and-mechanism-of-tren-based-tris-thio-ureas
#2
Laura Jowett, Ethan Howe, Xin Wu, Nathalie Busschaert, Philip Alan Gale
The anion transport properties of a series of previously reported tren-based anionophores have been revisited using new assays designed to measure anion uniport. This study provides new insights into the transport mechanism and selectivity of this important class of transporters. Specifically, we report the chloride and nitrate transport selectivity of these systems and quantify sulfate transport to determine EC50 values for sulfate transport for the first time. Two new assays were developed to study bicarbonate transport allowing accurate quantification of chloride/bicarbonate exchange...
May 22, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29786903/copper-catalyzed-allylic-c-h-alkynylation-via-cross-dehydrogenative-coupling
#3
Ahmad A Almasalma, Esteban Mejía
C-H bond functionalization is a well-developed concept that has been thoroughly studied and gives entry to rather complex molecules without the need of previous derivatization of the substrates, although the use of copper complexes for allylic C-H bond functionalization under oxidative conditions as an alternative to the well-established palladium-based methodologies remains largely underdeveloped. Here we show for the first time a selective cross-dehydrogenative coupling reaction between underivatized allylic substrates and terminal alkynes to produce 1,4-enynes in high yields in a single step, using an in situ synthesized copper catalyst and an oxidant...
May 22, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29786860/effect-of-cold-plasma-on-maintaining-the-quality-of-chub-mackerel-scomber-japonicus-biochemical-and-sensory-attributes
#4
Jing Chen, Sheng-Zhe Wang, Jun-Yu Chen, Dong-Zhi Chen, Shang-Gui Deng, Bin Xu
BACKGROUND: Atmospheric cold plasma (ACP) has emerged as a potential alternative to traditional methods for non-thermal food decontamination. However, little data are available about ACP treatment for seafood. In this study, dielectric barrier discharge (DBD) was applied to generate CP, and the aim of the study was to investigate the effectiveness of DBD-ACP on improving the quality of chub mackerel on the basis of chemical, microbial, and sensory characteristics. RESULTS: The effect of DBD-ACP on the quality of chub mackerel (Scomber japonicus) during storage was examined...
May 21, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29786854/muffins-elaborated-with-optimized-monoglycerides-oleogels-from-solid-fat-replacer-obtention-to-product-quality-evaluation
#5
Anabella S Giacomozzi, María E Carrín, Camila A Palla
This study demonstrates the effectiveness of using oleogels from high oleic sunflower oil (HOSO) and monoglycerides as solid fat replacers in a sweet bakery product. Firstly, a methodology to obtain oleogels with desired properties based on mathematical models able to describe relationships between process and product characteristics variables followed by multi-objective optimization was applied. Later, muffins were prepared with the optimized oleogels and their physicochemical and textural properties were compared with those of muffins formulated using a commercial margarine (Control) or only HOSO...
May 22, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29786849/isolation-and-characterization-of-wheat-derived-nonspecific-lipid-transfer-protein-2-nsltp2
#6
Sara Bosi, Jessica Fiori, Giovanni Dinelli, Neil Rigby, Emanuela Leoncini, Cecilia Prata, Valeria Bregola, Ilaria Marotti, Roberto Gotti, Marina Naldi, Luca Massaccesi, Marco Malaguti, Paul Kroon, Silvana Hrelia
Numerous studies support the protective role of bioactive peptides against cardiovascular diseases. Cereals represent the primary source of carbohydrates, but they also contain substantial amounts of proteins, therefore representing a potential dietary source of bioactive peptides with nutraceutical activities. The analysis of wheat extracts purified by chromatographic techniques by means of HPLC-UV/nanoLC-nanoESI-QTOF allowed the identification of a signal of about 7 kDa which, following data base searches, was ascribed to a nonspecific lipid-transfer protein (nsLTP) type 2 from Triticum aestivum (sequence coverage of 92%)...
May 22, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29786807/-pharmacotherapy-of-epilepsy
#7
Torbjörn Tomson, Olof Rask
Pharmacotherapy of epilepsy is usually initiated after two or more unprovoked seizures, a decision that should be made after assessment of the individual risk of further seizures. Antiepileptic drugs (AEDs) are selected based on documented efficacy for the type of seizures, the epilepsy and possible epilepsy syndrome of the patient, taking potential adverse effects and comorbidity into account. For many AEDs, the mechanisms of action are incompletely understood. More than half of patients with newly diagnosed epilepsy achieve sustained seizure freedom with their first or second drug trials...
May 21, 2018: Läkartidningen
https://www.readbyqxmd.com/read/29786789/protocols-for-tissue-microarrays-in-prostate-cancer-studies
#8
Tatjana Vlajnic, Serenella Eppenberger-Castori, Lukas Bubendorf
Tissue microarray (TMA) technology is a method for high-throughput analysis of tissue biomarkers, commonly used in translational cancer research. TMAs allow performing a variety of in situ applications on hundreds of tissue samples simultaneously using the same protocols as for conventional slides. Thereby, precious material from patient samples remains largely preserved while costs in resources and time in laboratory processing decrease. Therefore, a TMA is a powerful tool to identify and study biomarkers that may have a potential diagnostic, prognostic, and predictive value...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29786773/survival-analysis-according-to-period-and-analysis-of-the-factors-influencing-changes-in-survival-in-patients-with-recurrent-breast-cancer-a-large-scale-single-center-study
#9
Sae Byul Lee, Guiyun Sohn, Jisun Kim, Il Yong Chung, Jong Won Lee, Hee Jeong Kim, Beom Seok Ko, Byung Ho Son, Sei-Hyun Ahn
BACKGROUND: We performed this study to analyze changing survival patterns regarding recurrent breast cancer in Korea during the last 16 years (1993-2008). We also sought to determine factors possibly influencing outcomes and changes over time in the duration of survival after recurrence. METHODS: We retrospectively analyzed 9671 patients with breast cancer treated between January 1993 and December 2008, comparing the periods 1993-2002 and 2003-2008.We retrospectively reviewed the collected database including the age at diagnosis, clinical manifestations, pathology report, surgical methods, types of adjuvant treatment modalities, type of recurrence, and follow-up period...
May 21, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/29786753/hypoxia%C3%A2-induced-expression-of-cxcr4-favors-trophoblast-cell-migration-and-invasion-via-the-activation-of-hif%C3%A2-1%C3%AE
#10
Zhan Zhang, Pengyun Li, Yan Wang, Huan Yan
The placenta initially develops in a low‑oxygen environment up to week 8‑10 of gestation, and a low oxygen level is a critical factor in the regulation of trophoblast migration and invasion. CXC chemokine receptor 4 (CXCR4) is transcriptionally activated by hypoxia in cancer cells. However, whether CXCR4 is involved in hypoxia‑inducible factor (HIF)‑1α‑dependent trophoblastic migration and invasion in a physiologically hypoxic environment (3% O2) remains to be fully elucidated and requires further investigation...
May 22, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786698/a-reconstruction-of-global-hydroclimate-and-dynamical-variables-over-the-common-era
#11
Nathan J Steiger, Jason E Smerdon, Edward R Cook, Benjamin I Cook
Hydroclimate extremes critically affect human and natural systems, but there remain many unanswered questions about their causes and how to interpret their dynamics in the past and in climate change projections. These uncertainties are due, in part, to the lack of long-term, spatially resolved hydroclimate reconstructions and information on the underlying physical drivers for many regions. Here we present the first global reconstructions of hydroclimate and associated climate dynamical variables over the past two thousand years...
May 22, 2018: Scientific Data
https://www.readbyqxmd.com/read/29786621/a-resisted-sprint-improves-rate-of-force-development-during-a-20-m-sprint-in-athletes
#12
Gerald T Mangine, Kevin Huet, Cassie Williamson, Emily Bechke, Paul Serafini, David Bender, John Hudy, Jeremy Townsend
Mangine, GT, Huet, K, Williamson, C, Bechke, E, Serafini, P, Bender, D, Hudy, J, and Townsend, J. A resisted sprint improves rate of force development during a 20-m sprint in athletes. J Strength Cond Res 32(6): 1531-1537, 2018-This study examined the effect of a resisted sprint on 20-m sprinting kinetics. After a standardized warm-up, 23 (male = 10, female = 13) Division I basketball players completed 3 maximal 20-m sprint trials while tethered to a robotic resistance device. The first sprint (S1) used the minimal, necessary resistance (1 kg) to detect peak (PK) and average (AVG) sprinting power (P), velocity (V), and force (F); peak rate of force production (RFD) was also calculated...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786590/hepatitis-c-and-human-rights-comparison-of-legal-experience-of-ukraine-and-georgia
#13
Iryna Y Senyuta
A comparative legal research of human rights provision in Ukraine and Georgia, in the aspect of combating viral HCV, was conducted. Ukrainian advocacy experience and Georgian strategic litigation experience with regard to human rights and HCV was analyzed. Key international instruments, which lay the conceptual foundations as well as outline the measures, which are directed at human rights in patient care provision and fighting viral hepatitis, were elucidated. Attention was paid to the Global health sector strategy...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786583/incidence-and-risk-factors-of-spina-bifida-in-children
#14
Mariana O Ryznychuk, Mariana I Kryvchanska, Irina V Lastivka, Roman Ye Bulyk
OBJECTIVE: Introduction: The pathogenesis of spina bifida depends on time, region, race and ethnicity. It is found in 4.7 per 10.000 of live born children worldwide. The aim: The incidence in children of Northern Bukovina was analyzed. The spina bifida incidence for 2007-2016 in this region, as well as, compared to some countries according to EUROCAT data was studied. PATIENTS AND METHODS: Materials and methods: A retrospective study to analyze the risk factors for spina bifida was carried out...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786526/application-of-multiple-behaviour-change-models-to-identify-determinants-of-farmers-biosecurity-attitudes-and-behaviours
#15
I F Richens, J Houdmont, W Wapenaar, O Shortall, J Kaler, H O'Connor, M L Brennan
It has been recognised that few cattle farmers undertake biosecurity practices on their farms. Approaches that take into consideration individuals' preparedness for change, alongside beliefs thought to motivate the enactment of certain behaviours, may provide a framework for actuating tangible change. The aim of this study was to use a combination of behaviour change models to link beliefs with behaviour and identify possible key interventions to improve the uptake of biosecurity measures by dairy cattle farmers in Great Britain (GB)...
July 1, 2018: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29786509/-targeted-screening-for-pre-eclampsia-in-the-first-trimester-of-pregnancy-at-toulouse-university-hospital
#16
A Genoux, P Guerby, M Morin, B Perret, C Vayssière, S M Hamdi
GOALS: Preeclampsia (PE) is a leading cause of maternal and neonatal morbidity and mortality. Early treatment by aspirin has been shown to significantly reduce PE risk before 37weeks supporting the implementation of first-trimester screening. SUBJECTS AND METHODS: A targeted screening was recently implemented at Toulouse University Hospital for women in their first pregnancy or those with personal or familial history of PE. It uses Fetal Medicine Foundation (FMF) algorithm that combines maternal characteristics, clinical, biophysical and biochemical (PAPP-A, Pregnancy Associated Plasma Protein-A, and PlGF, Placental Growth Factor) data...
May 18, 2018: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29786492/socioeconomic-inequalities-in-suicide-in-europe-the-widening-gap
#17
Vincent Lorant, Rianne de Gelder, Dharmi Kapadia, Carme Borrell, Ramune Kalediene, Katalin Kovács, Mall Leinsalu, Pekka Martikainen, Gwenn Menvielle, Enrique Regidor, Maica Rodríguez-Sanz, Bogdan Wojtyniak, Bjørn Heine Strand, Matthias Bopp, Johan P Mackenbach
BACKGROUND: Suicide has been decreasing over the past decade. However, we do not know whether socioeconomic inequality in suicide has been decreasing as well.AimsWe assessed recent trends in socioeconomic inequalities in suicide in 15 European populations. METHOD: The DEMETRIQ study collected and harmonised register-based data on suicide mortality follow-up of population censuses, from 1991 and 2001, in European populations aged 35-79. Absolute and relative inequalities of suicide according to education were computed on more than 300 million person-years...
June 2018: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/29786452/identification-of-a-novel-hiv-1-unique-recombinant-form-composed-of-crf01_ae-subtype-b-and-crf65_cpx-among-men-who-have-sex-with-men-in-jilin-china
#18
Yuan-Long Lin, Bo Song, Bing Shao, Si-Yu Liu, Qing-Qing Huo, Jin Li, Jia-Ye Wang, Fu-Xiang Wang
Current HIV-1 epidemic in China is featured by diverse subtypes and continual emergence of new recombinant viruses. This study identified a novel unique recombinant form (URF) JL16013 among men who has sex with men (MSM) in Jilin, China. The JL16013 virus was different from all known subtypes and set up a distinct branch on the phylogenetic tree. This virus had a CRF01_AE backbone with two subtype B' fragments and one CRF65_cpx fragment inserted into gag, pol, env and nef regions, suggesting that this novel URF might originated from the CRF01_AE, subtype B' and CRF65_cpx viruses that were co-circulating in Jilin province...
May 22, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29786433/polymer-diffusion-in-the-interphase-between-surface-and-solution
#19
Lukas Weger, Monika Weidmann, Wael Ali, Marcus Hildebrandt, Jochen Stefan Gutmann, Kerstin Hoffmann-Jacobsen
Total internal reflection fluorescence correlation spectroscopy (TIR-FCS) is applied to study the self-diffusion of polyethylene glycol solutions in the presence of weakly attractive interfaces. Glass coverslips modified with aminopropyl- and propyl-terminated silanes are used to study the influence of solid surfaces on polymer diffusion. A model of three phases of polymer diffusion allows to describe the experimental fluorescence autocorrelation functions. Besides the two-dimensional diffusion of adsorbed polymer on the substrate and three-dimensional free diffusion in bulk solution, a third diffusion time scale is observed with intermediate diffusion times...
May 22, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29786424/tuning-gene-activity-by-inducible-and-targeted-regulation-of-gene-expression-in-minimal-bacterial-cells
#20
Ana M Mariscal, Shigeyuki Kakizawa, Jonathan Y Hsu, Kazuki Tanaka, Luis González-González, Alicia Broto, Enrique Querol, Maria Lluch-Senar, Carlos Piñero-Lambea, Lijie Sun, Philip D Weyman, Kim S Wise, Chuck Merryman, Gavin Tse, Adam J Moore, Clyde A Hutchison, Hamilton O Smith, Masaru Tomita, J Craig Venter, John I Glass, Jaume Piñol, Yo Suzuki
Functional genomics studies in minimal mycoplasma cells enable unobstructed access to some of the most fundamental processes in biology. Conventional transposon bombardment and gene knockout approaches often fail to reveal functions of genes that are essential for viability, where lethality precludes phenotypic characterization. Conditional inactivation of genes is effective for characterizing functions central to cell growth and division, but tools are limited for this purpose in mycoplasmas. Here we demonstrate systems for inducible repression of gene expression based on clustered regularly interspaced short palindromic repeats-mediated interference (CRISPRi) in Mycoplasma pneumoniae and synthetic Mycoplasma mycoides, two organisms with reduced genomes actively used in systems biology studies...
May 22, 2018: ACS Synthetic Biology
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