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https://www.readbyqxmd.com/read/28545261/microbicidal-activity-of-n-chlorotaurine-in-combination-with-hydrogen-peroxide
#1
Jasmin Mustedanagic, Valdecir Farias Ximenes, Markus Nagl
N-chlorotaurine (NCT) and hydrogen peroxide are powerful endogenous antiseptics. In vivo, the reaction between hydrogen peroxide and metal ions leads to the formation of free hydroxyl radicals, which have an increased bactericidal activity. This study examined whether there is an additive antimicrobial effect of NCT combined with hydrogen peroxide. Additionally, it was tested if the additive effect is based on the formation of free radicals. We found by luminometry that, in the presence of H2O2, NCT caused a slow and long-lasting production of singlet oxygen in contrast to HOCl, where this burst occurred instantaneously...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28545253/encapsulation-of-the-antioxidant-r-%C3%AE-lipoic-acid-in-permethylated-%C3%AE-and-%C3%AE-cyclodextrins-thermal-and-x-ray-structural-characterization-of-the-1-1-inclusion-complexes
#2
Mino R Caira, Susan A Bourne, Buntubonke Mzondo
The naturally occurring compound α-lipoic acid (ALA) is implicated in manifold critical biological roles and its potent antioxidant properties and potential for treatment of various diseases have led to its widespread use as a dietary supplement. However, shortcomings of poor aqueous solubility and low thermal stability have hampered its development as a medicinal agent, prompting the use of cyclodextrins (CDs) to address these problems. The paucity of published structural data on the nature of the interactions between ALA and CDs motivated the present study, which describes the synthesis and X-ray structural elucidation of crystalline inclusion complexes between the biologically relevant R-(+)-α-lipoic acid (RALA) and the host molecules permethylated α-CD (TMA) and permethylated β-CD (TMB)...
May 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28545191/%C3%A2-mate%C3%A2-intake-hormone-based-risk-factors-and-breast-cancer-a-case-control-study
#3
Alvaro L Ronco, Edison Espinosa, Juan M Calderon, Eduardo Lasalvia- Galante, Alejandro De Rosa, Gustavo Sanchez
Previous reports on the inverse association between ‘mate’ intake (infusion of Ilex Paraguariensis herb) and breast cancer (BC) risk led us to consider two main roles for the infusion: as a substantial antioxidant contributor and as a hormone regulator, particularly through anti-aromatase capacities. Since menstrual-reproductive risk factors for BC reflect women’s estrogenic exposure during the reproductive lifespan, and considering that ‘mate’ intake exerts putative stronger protection among high antioxidant contributors, we attempted to analyze interactions among the infusion, hormon-linked reproductive factors and BC risk, which have hitherto remained unexplored...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545130/responses-of-absolute-and-specific-enzyme-activity-to-consecutive-application-of-composted-sewage-sludge-in-a-fluventic-ustochrept
#4
Xiao Liu, Kangli Guo, Lin Huang, Zhengyu Ji, Huimin Jiang, Hu Li, Jianfeng Zhang
Composted sewage sludge (CS) is considered a rich source of soil nutrients and significantly affects the physical, chemical, and biological characteristics of soil, but its effect on specific enzyme activity in soil is disregarded. The present experiment examined the absolute and specific enzyme activity of the enzymes involved in carbon, nitrogen, and phosphorus cycles, the diversity of soil microbial functions, and soil community composition in a Fluventic Ustochrept under a maize-wheat rotation system in North China during 2012-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28545032/endoplasmic-reticulum-stress-mediated-membrane-expression-of-crt-erp57-induces-immunogenic-apoptosis-in-drug-resistant-endometrial-cancer-cells
#5
Qin Xu, Chuanben Chen, An Lin, Yunqing Xie
OBJECTIVE: To investigate the role of endoplasmic reticulum (ER) stress-mediated CRT/ERp57 complex expression underlying the mechanism of resistance to doxorubicin (DOX) in endometrial carcinoma (EC) in vivo and in vitro. METHODS: The expression of CRT, ERp57, p-PERK, eIF2α, p-eIF2α in EC patients and EC cells was detected by Western blots and by immunofluorescence assay. MTT assay was used to determine the LC50 of EC cells to DOX and cell viability. Apoptosis was assayed using flow cytometer...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28545014/paracetamol-causes-endocrine-disruption-and-hepatotoxicity-in-male-fish-rhamdia-quelen-after-subchronic-exposure
#6
Izonete Cristina Guiloski, João Luiz Coelho Ribas, Laercio Dante Stein Piancini, Ana Carolina Dagostim, Silvana Maris Cirio, Luis Fernando Fávaro, Suelen Lúcio Boschen, Marta Margarete Cestari, Cláudio da Cunha, Helena Cristina Silva de Assis
Paracetamol is one of the most widely sold non-prescription drugs. This study aimed to evaluate the effects of the paracetamol on reproductive, biochemical, genetic, histopathological and hematogical biomarkers by waterborne exposure. Male fish of Rhamdia quelen were exposed to environmental concentrations of paracetamol (0, 0.25, 2.5μg/L) in a semi-static bioassay for 21days. Hemoglobin and hematocrit were reduced upon exposure to 0.25μg/L of paracetamol. Leukocytes and thrombocytes increased after paracetamol exposure...
May 8, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28544976/long-range-transport-of-xe-133-emissions-under-convective-and-non-convective-conditions
#7
J Kuśmierczyk-Michulec, M Krysta, M Kalinowski, E Hoffmann, J Baré
To investigate the transport of xenon emissions, the Provisional Technical Secretariat (PTS) operates an Atmospheric Transport Modelling (ATM) system based on the Lagrangian Particle Dispersion Model FLEXPART. The air mass trajectory ideally provides a "link" between a radionuclide release and a detection confirmed by radionuclide measurements. This paper investigates the long-range transport of Xe-133 emissions under convective and non-convective conditions, with special emphasis on evaluating the changes in the simulated activity concentration values due to the inclusion of the convective transport in the ATM simulations...
May 22, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28544974/cetuximab-modified-collagen-scaffold-directs-neurogenesis-of-injury-activated-endogenous-neural-stem-cells-for-acute-spinal-cord-injury-repair
#8
Xing Li, Yannan Zhao, Shixiang Cheng, Sufang Han, Muya Shu, Bing Chen, Xuyi Chen, Fengwu Tang, Nuo Wang, Yue Tu, Bin Wang, Zhifeng Xiao, Sai Zhang, Jianwu Dai
Studies have shown that endogenous neural stem cells (NSCs) activated by spinal cord injury (SCI) primarily generate astrocytes to form glial scar. The NSCs do not differentiate into neurons because of the adverse microenvironment. In this study, we defined the activation timeline of endogenous NSCs in rats with severe SCI. These injury-activated NSCs then migrated into the lesion site. Cetuximab, an EGFR signaling antagonist, significantly increased neurogenesis in the lesion site. Meanwhile, implanting cetuximab modified linear ordered collagen scaffolds (LOCS) into SCI lesion sites in dogs resulted in neuronal regeneration, including neuronal differentiation, maturation, myelination, and synapse formation...
May 18, 2017: Biomaterials
https://www.readbyqxmd.com/read/28544894/regulation-of-maize-kernel-weight-and-carbohydrate-metabolism-by-abscisic-acid-applied-at-the-early-and-middle-post-pollination-stages-in-vitro
#9
Li Zhang, Xu-Hui Li, Zhen Gao, Si Shen, Xiao-Gui Liang, Xue Zhao, Shan Lin, Shun-Li Zhou
Abscisic acid (ABA) accumulates in plants under drought stress, but views on the role of ABA in kernel formation and abortion are not unified. The response of the developing maize kernel to exogenous ABA was investigated by excising kernels from cob sections at four days after pollination and culturing in vitro with different concentrations of ABA (0, 5, 10, 100μM). When ABA was applied at the early post-pollination stage (EPPS), significant weight loss was observed at high ABA concentration (100μM), which could be attributed to jointly affected sink capacity and activity...
May 10, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28544870/the-killing-of-kitty-genovese-what-else-does-this-case-tell-us
#10
Saul M Kassin
Well known in popular culture, the 1964 murder of Kitty Genovese in Queens, New York, became famous because not one of an alleged 38 bystanders called police until it was too late. Within psychology, this singular event inspired the study of bystander intervention. With the spotlight of history focused on Ms. Genovese and bystanders, other events, also profound for what they tell us about human social behavior, have escaped public notice. Based on archival records and current interviews, this article describes the three issues linked to Genovese...
May 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28544858/effects-of-resistance-training-on-performance-in-previously-trained-endurance-runners-a-systematic-review
#11
Manuel Alcaraz-Ibañez, Manuel Rodríguez-Pérez
The aim of this work was to identify, synthesize and evaluate the results of randomized controlled trials examining the effects of resistance training on performance indicators in previously trained endurance runners. A database search was carried out in PubMed, Science Direct, OvidSPMedLine, Wiley, Web of Science, ProQuest and Google Scholar. In accordance with the PRISMA checklist, 18 published articles dated prior to May 2016 involving 321 endurance runners were reviewed using the PEDro scale. Resistance training led to general improvements in muscular strength, running economy, muscle power factors, and direct performance in distances between 1,500 and 10,000 m...
May 25, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28544827/procedural-techniques-for-the-management-of-severe-transvalvular-and-paravalvular-aortic-regurgitation-during-tavr
#12
Abdulla A Damluji, Carlos E Alfonso, Mauricio G Cohen
Aortic regurgitation (AR) after transcatheter aortic valve replacement (TAVR) is associated with an increased risk of mortality. In severe cases, abrupt hemodynamic changes may occur with a sudden increase in left ventricular end-diastolic pressure that results in frank pulmonary edema, hypoxia, and cardiogenic shock. Here, the case is reported of a patient who developed severe AR immediately after valve deployment that led to severe hemodynamic compromise. The procedural techniques necessary for the immediate management of severe transvalvular and paravalvular AR are described...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544780/spinal-metastatic-disease-a-review-of-the-role-of-the-multidisciplinary-team
#13
REVIEW
Mark Curtin, Robert P Piggott, Evelyn P Murphy, Sudarshan Munigangaiah, Joseph F Baker, John P McCabe, Aiden Devitt
Historically, a simple approach centered on palliation was applicable to the majority of patients with metastatic spinal disease. With advances in diagnosis and treatment, a more complicated algorithm has devolved requiring a multidisciplinary approach with institutional commitment and support. We performed a database review including pertinent articles exploring the multidisciplinary management of spinal metastatic disease. The wide variation in clinical presentation and tumor response to treatment necessitates a multidisciplinary approach that integrates the diagnosis and treatment of the cancer, symptom management, and rehabilitation for optimal care of patients with spinal metastases...
May 24, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28544705/sma3s-a-universal-tool-for-easy-functional-annotation-of-proteomes-and-transcriptomes
#14
Carlos S Casimiro-Soriguer, Antonio Muñoz-Mérida, Antonio J Pérez-Pulido
The current cheapening of next-generation sequencing has led to an enormous growth in the number of sequenced genomes and transcriptomes, allowing wet labs to get the sequences from their organisms of study. To make the most of these data, one of the first things that should be done is the functional annotation of the protein-coding genes. But it used to be a slow and tedious step that can involve the characterization of thousands of sequences. Sma3s is an accurate computational tool for annotating proteins in an unattended way...
May 20, 2017: Proteomics
https://www.readbyqxmd.com/read/28544672/providing-end-of-life-care-in-disability-community-living-services-an-organizational-capacity-building-model-using-a-public-health-approach
#15
Andrea Grindrod, Bruce Rumbold
BACKGROUND: There is broad consensus within the disability field that the end-of-life care offered to people with intellectual disabilities should be of a quality consistent with that advocated by contemporary palliative care. In practice, however, various barriers are encountered when applying palliative care strategies to the end-of-life care of people with intellectual disabilities, particularly those in disability community living services. METHODS: A mixed-methods approach was used...
May 24, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/28544658/the-evolution-of-stories-from-mimesis-to-language-from-fact-to-fiction
#16
REVIEW
Brian Boyd
Why a species as successful as Homo sapiens should spend so much time in fiction, in telling one another stories that neither side believes, at first seems an evolutionary riddle. Because of the advantages of tracking and recombining true information, capacities for event comprehension, memory, imagination, and communication evolved in a range of animal species-yet even chimpanzees cannot communicate beyond the here and now. By Homo erectus, our forebears had reached an increasing dependence on one another, not least in sharing information in mimetic, prelinguistic ways...
May 24, 2017: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/28544589/methionine-tumor-starvation-by-erythrocyte-encapsulated-methionine-gamma-lyase-activity-controlled-with-per-os-vitamin-b6
#17
Fabien Gay, Karine Aguera, Karine Sénéchal, Angie Tainturier, Willy Berlier, Delphine Maucort-Boulch, Jérôme Honnorat, Françoise Horand, Yann Godfrin, Vanessa Bourgeaux
Erymet is a new therapy resulting from the encapsulation of a methionine gamma-lyase (MGL; EC number 4.4.1.11) in red blood cells (RBC). The aim of this study was to evaluate erymet potential efficacy in methionine (Met)-dependent cancers. We produced a highly purified MGL using a cGMP process, determined the pharmacokinetics/pharmacodynamics (PK/PD) properties of erymet in mice, and assessed its efficacy on tumor growth prevention. Cytotoxicity of purified MGL was tested in six cancer cell lines. CD1 mice were injected with single erymet product supplemented or not with vitamin B6 vitamer pyridoxine (PN; a precursor of PLP cofactor)...
May 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544565/base-selective-five-versus-six-membered-ring-annulation-in-palladium-catalyzed-c-c-coupling-cascade-reactions-new-access-to-electron-poor-polycyclic-aromatic-dicarboximides
#18
Sabine Seifert, David Schmidt, Kazutaka Shoyama, Frank Würthner
Palladium-catalyzed base-selective annulation of dibromonaphthalimide to different aryl boronate esters by combined Suzuki-Miyaura cross-coupling and direct C-H arylation afforded a series of new five- and six-membered ring annulated electron-poor polycyclic aromatic hydrocarbons. Cesium carbonate (Cs2 CO3 ) as auxiliary base in these C-C coupling cascade reactions led exclusively to six-membered ring annulation, while the use of organic base diazabicycloundecene (DBU) afforded the corresponding five-membered ring annulated products...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544553/dna-barcoding-meets-nanotechnology-development-of-a-smart-universal-tool-for-food-authentication
#19
Paola Valentini, Andrea Galimberti, Valerio Mezzasalma, Fabrizio De Mattia, Maurizio Casiraghi, Massimo Labra, Pier Paolo Pompa
Food trade globalization and the growing demand for selected food varieties have led to the intensification of adulteration cases, especially in the form of species substitution/mixing with cheaper taxa. This phenomenon acquired huge economic impact and sometimes even public health implications. DNA barcoding represents a well-proven molecular tool to assess the authenticity of food items, although its diffusion is hampered by analytical constraints and timeframes that are often prohibitive for food market...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544542/conditional-macrophage-depletion-increases-inflammation-and-does-not-inhibit-the-development-of-osteoarthritis-in-obese-mafia-mice
#20
Chia-Lung Wu, Jenna McNeill, Kelsey Goon, Dianne Little, Kelly Kimmerling, Janet Huebner, Virginia Kraus, Farshid Guilak
OBJECTIVE: Macrophages are believed to play a critical role in the inflammation associated with the development of osteoarthritis (OA) in obesity. The objective of the study was to investigate whether short-term, systemic depletion of macrophages would mitigate OA following injury in obese mice. METHODS: CSF-1R-GFP(+) Macrophage Fas-Induced Apoptosis (MaFIA) transgenic mice that allow conditional depletion of macrophages were placed on a high-fat diet and underwent surgery to induce knee OA...
May 23, 2017: Arthritis & Rheumatology
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