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https://www.readbyqxmd.com/read/28432989/the-effect-of-natural-ventilation-strategy-on-indoor-air-quality-in-schools
#1
Luca Stabile, Marco Dell'Isola, Aldo Russi, Angelamaria Massimo, Giorgio Buonanno
In order to reduce children's exposure to pollutants in classrooms a proper ventilation strategy need to be adopted. Such strategy is even more important in naturally ventilated schools where the air exchange rate is only based on the manual airing of classrooms. The present work aimed to evaluate the effect of the manual airing strategy on indoor air quality in Italian classrooms. For this aim, schools located in the Central Italy were investigated. Indoor air quality was studied in terms of CO2, particle number and PM concentrations and compared to corresponding outdoor levels...
April 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28432580/corneal-melting-in-rheumatoid-arthritis-patients-treated-with-a-tectonic-reinforcing-corneolimbal-graft-an-interventional-case-series
#2
Eitan Livny, Michael Mimouni, Irit Bahar, Yair Molad, Assaf Gershoni, Israel Kremer
PURPOSE: Corneal melting with perforation is a severe ophthalmic complication of autoimmune disorders such as rheumatoid arthritis. It requires urgent medical management in order to maintain the integrity of the globe and preserve vision. Treating this complication by penetrating keratoplasty is problematic due to the high rate of recurrence of corneal melting as well as other complications. We describe the use of a tectonic fresh-tissue corneolimbal covering graft. METHODS: An interventional case series including three patients that presented to our tertiary center between 2000 and 2015 with corneal melting and perforation, secondary to rheumatoid arthritis...
April 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28432257/excess-diffuse-light-absorption-in-upper-mesophyll-limits-co2-drawdown-and-depresses-photosynthesis
#3
Jeffrey Mason Earles, Guillaume Théroux-Rancourt, Matthew E Gilbert, Andrew J McElrone, Craig Brodersen
In agricultural and natural systems, diffuse light can enhance plant primary productivity due to deeper penetration into and greater illumination of the entire canopy. However, for individual sun-grown leaves from three species, photosynthesis is actually less efficient under diffuse compared to direct light. Despite its potential impact on canopy-level productivity, the mechanism for this leaf-level 'diffuse light photosynthetic depression' effect is unknown. Here we investigate if the spatial distribution of light absorption relative to electron transport capacity in sun- and shade-grown H...
April 21, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28432202/crossbow-bolt-injury-an-unusual-case-of-penetrating-trauma
#4
David Hunt, M Sodergren
No abstract text is available yet for this article.
April 19, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28432128/do-the-microbiota-influence-vaccines-and-protective-immunity-to-pathogens-issues-of-sovereignty-federalism-and-points-testing-in-the-prokaryotic-and-eukaryotic-spaces-of-the-host-microbial-superorganism
#5
Andrew J Macpherson
In contrast to live attenuated vaccines, which are designed to induce immunity through a time-limited bloom in systemic tissues, the microbiota is a persistent feature of body surfaces, especially the intestine. The immune responses to the microbiota are idiosyncratic depending on the niche intimacy of different taxa and generally adapt the host to avoid overgrowth and maintain mutualism rather than to eliminate the organisms of that taxon. Both the microbiota and the host have so much molecular cross talk controlling each other, that the prokaryotic and the eukaryotic spaces of the host-microbial superorganism are federal rather than sovereign...
April 21, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28432017/dual-functional-nanoparticles-for-precise-drug-delivery-to-alzheimer-s-disease-lesions-targeting-mechanisms-pharmacodynamics-and-safety
#6
Xiaoyao Zheng, Chi Zhang, Qian Guo, Xu Wan, Xiayan Shao, Qingfeng Liu, Qizhi Zhang
Alzheimer's disease (AD) is the most common form of dementia and is characterized by the cerebral accumulation of extracellular amyloid plaques. In a previous study, this histopathological hallmark was used as a target on a dual-functional nanoparticle (TQNP) to deliver biotechnological drugs, such as the H102 peptide, a β-sheet breaker, to AD lesions precisely. This delivery system could reduce the amyloid-β (Aβ) burden in the brains of AD model mice, as well as ameliorated the memory impairment of the mice...
April 18, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28431944/green-seaweed-enteromorpha-compressa-chlorophyta-ulvaceae-derived-sulphated-polysaccharides-inhibit-herpes-simplex-virus
#7
Nayara Lopes, Sayani Ray, Samantha Fernandes Espada, Weslei Andrade Bomfim, Bimalendu Ray, Lígia Carla Faccin-Galhardi, Rosa Elisa Carvalho Linhares, Carlos Nozawa
The herpes simplex virus (HSV) diseases represent a relevant medical and social problem due to their communicability and recurrence following latency. The green algae are rich source of polysaccharides referred to as ulvans, reported as being biologically and pharmacologically active. In this work, we analyzed the activity of seven chemically modified polysaccharides from Enteromorpha compressa (Chlorophyta, Ulvaceae), against HSV. Only the derivative named SU1F1 showed satisfactory viral inhibition activity, with a high selectivity index, and, therefore, it was submitted to analysis of the probable mechanism of action and structure...
April 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28431917/effective-modification-of-cell-death-inducing-intracellular-peptides-by-means-of-a-photo-cleavable-peptide-array-based-screening-system
#8
Ikko Kozaki, Kazunori Shimizu, Hiroyuki Honda
Intracellular functional peptides that play a significant role inside cells have been receiving a lot of attention as regulators of cellular activity. Previously, we proposed a novel screening system for intracellular functional peptides; it combined a photo-cleavable peptide array system with cell-penetrating peptides (CPPs). Various peptides can be delivered into cells and intracellular functions of the peptides can be assayed by means of our system. The aim of the present study was to demonstrate that the proposed screening system can be used for assessing the intracellular activity of peptides...
April 18, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28431416/caring-for-critically-injured-children-an-analysis-of-56-pediatric-damage-control-laparotomies
#9
Miguel A Villalobos, Joshua P Hazelton, Rachel L Choron, Lisa Capano-Wehrle, Krystal Hunter, John P Gaughan, Steven E Ross, Mark J Seamon
BACKGROUND: Injury is the leading cause of death in children under 18 years. Damage control principles have been extensively studied in adults but remain relatively unstudied in children. Our primary study objective was to evaluate the use of damage control laparotomy (DCL) in critically injured children. METHODS: An American College of Surgeons-verified Level 1 trauma center review (1996-2013) of pediatric trauma laparotomies was undertaken. Exclusion criteria included: age older than 18 years, laparotomy for abdominal compartment syndrome or delayed longer than 2 hours after admission...
May 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28431354/first-example-of-peptides-targeting-the-dimer-interface-of-leishmania-infantum-trypanothione-reductase-with-potent-in%C3%A2-vitro-antileishmanial-activity
#10
Marta Ruiz-Santaquiteria, Pedro A Sánchez-Murcia, Miguel A Toro, Héctor de Lucio, Kilian Jesús Gutiérrez, Sonia de Castro, Filipa A C Carneiro, Federico Gago, Antonio Jiménez-Ruiz, María-José Camarasa, Sonsoles Velázquez
A series of 9-mer and 13-mer amide-bridged cyclic peptides derived from the linear prototype Ac-PKIIQSVGIS-Nle-K-Nle-NH2 (Toro et al. ChemBioChem2013) has been designed and synthesized by introduction of the lactam between amino acid side chains that are separated by one helical turn (i, i+4). All of these compounds were tested in vitro as both dimerization and enzyme inhibitors of Leishmania infantum trypanothione reductase (Li-TryR). Three of the 13-mer cyclic peptide derivatives (3, 4 and 6) inhibited the oxidoreductase activity of Li-TryR in the low micromolar range and they also disrupted enzyme dimerization...
April 13, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28431340/first-macrocyclic-3-rd-generation-alk-inhibitor-for-treatment-of-alk-ros1-cancer-clinical-and-designing-strategy-update-of-lorlatinib
#11
REVIEW
Sulman Basit, Zaman Ashraf, Kwangho Lee, Muhammad Latif
Non-small cell lung cancers (NSCLC) harboring anaplastic lymphoma kinase (ALK) gene rearrangements invariably develop resistance to 2(nd)-generation ALK inhibitors. Lorlatinib (PF-06463922) (6) is a 3(rd)-generation macrocyclic ALK-TKI that demonstrates many advantages over 2(nd)-generation ALK inhibitors. Lorlatinib has demonstrated decent kinase selectivity, promising pharmacokinetic profile, selective brain-penetration and strong antiproliferative activity in several ALK/ROS1-driven tumor models. The current review describes the activity spectrum, key events from discovery to clinical applications and the evidences that lorlatinib acts as an ALK/ROS1 inhibitor in clinical settings...
April 13, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28431141/grade-and-location-of-power-doppler-are-predictive-of-damage-progression-in-rheumatoid-arthritis-patients-in-clinical-remission-by-anti-tumour-necrosis-factor-%C3%AE
#12
Bernd Raffeiner, Enrico Grisan, Costantino Botsios, Roberto Stramare, Gaia Rizzo, Livio Bernardi, Leonardo Punzi, Francesca Ometto, Andrea Doria
Objectives.: To investigate power Doppler (PD) signal, grade and location and their association with radiographic progression in RA patients in remission. Methods: . A prospective observational study was conducted in 125 consecutive RA patients in stable 28-joint DAS (DAS28) remission (⩾6 months) achieved on anti-TNF-α. At baseline, patients in stable remission underwent radiographic and US examination of the wrists and MCP, PIP and MTP joints. Semi-quantitative PD scoring (0-3) was recorded...
April 20, 2017: Rheumatology
https://www.readbyqxmd.com/read/28430806/incidence-and-risk-factors-for-post-penetrating-keratoplasty-glaucoma-a-systematic-review-and-meta-analysis
#13
Suqian Wu, Jianjiang Xu
OBJECTIVES: To establish the incidence and risk factors for post penetrating keratoplasty glaucoma (PKKG). METHODS: Studies published between 1947 and 2016 regarding penetrating keratoplasty (PK) were identified using an electronic search and reviewed. For search purpose, PKKG was defined as ocular hypertension (> 21mmHg) after PK. The incidence and risk factors of PKKG were extracted for all studies. Pooled incidence, odd ratios (ORs) and 95% confidence intervals (CIs) were calculated...
2017: PloS One
https://www.readbyqxmd.com/read/28430798/evaluation-of-mature-soybean-pods-as-a-food-source-for-two-pod-sucking-bugs-riptortus-pedestris-hemiptera-alydidae-and-halyomorpha-halys-hemiptera-pentatomidae
#14
M Mahbubur Rahman, Un Taek Lim
Riptortus pedestris (Fabricius) and Halyomorpha halys (Stål) cause injury to soybeans by piercing and sucking pods and seeds. Growers believe that new damage decreases near to harvest despite the occurrence of these bugs at that time. As this question has never been assessed, we evaluated two diets: a) mature soybean pods (dried shell + dried soybean seeds) and b) dried soybean seeds for the two bugs by assessing their biological, behavioral, and morphological attributes on each diet in laboratory. While nymphs of both species were able to develop and adults able to reproduce on the tested diets, bugs fed on pods had longer development times and 2...
2017: PloS One
https://www.readbyqxmd.com/read/28430760/resuscitative-endovascular-balloon-occlusion-of-the-aorta-or-resuscitative-thoracotomy-with-aortic-clamping-for-noncompressible-torso-hemorrhage-a-retrospective-nationwide-study
#15
Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga
BACKGROUND: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is an emerging treatment for noncompressible torso hemorrhage. It remains unclear if REBOA is superior to resuscitative thoracotomy with aortic cross-clamping (RT) in terms of improving outcomes. This study compared in-hospital outcomes between REBOA and RT in trauma patients with uncontrolled hemorrhagic shock, using data from a national inpatient database in Japan. METHODS: Using the Diagnosis Procedure Combination database, we identified patients who received REBOA or RT within 1 day after admission from July 1, 2010, to March 31, 2014...
May 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28430427/performance-of-the-amoeba-water-model-in-the-vicinity-of-qm-solutes-a-diagnosis-using-energy-decomposition-analysis
#16
Yuezhi Mao, Yihan Shao, Jacek Dziedzic, Chris-Kriton Skylaris, Teresa Head-Gordon, Martin Head-Gordon
The importance of incorporating solvent polarization effects into the modeling of solvation processes has been well-recognized, and therefore a new generation of hybrid quantum mechanics/molecular mechanics (QM/MM) approaches that accounts for this effect is desirable. We present a fully self-consistent, mutually polarizable QM/MM scheme using the AMOEBA force field, in which the total energy of the system is variationally minimized with respect to both the QM electronic density and the MM induced dipoles. This QM/AMOEBA model is implemented through the Q-Chem/LibEFP code interface and then applied to the evaluation of solute-solvent interaction energies for various systems ranging from the water dimer to neutral and ionic solutes (NH3, NH4(+) , CN(-)) surrounded by increasing numbers of water molecules (up to 100)...
April 21, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28430394/structure-based-design-of-a-new-scaffold-for-cell-penetrating-peptidic-inhibitors-of-the-histone-demethylase-phf8
#17
Jerzy Dorosz, Lars Olsen, Signe Teuber Seger, Cornelia Steinhauer, Giorgos Bouras, Charlotte Helgstrand, Anders Wiuf, Michael Gajhede
The histone demethylase PHF8 catalyzes demethylation of mono- and di-methylated lysine 9 on histone H3 (H3K9me1/2) and is a transcriptional activator involved in development and cancer. Affinity and specificity of PHF8 towards H3K9me2 substrate is affected by interaction with both the catalytic domain and a PHD reader domain. The latter specifically recognizes tri-methylated lysine 4 on histone H3. A fragment of the histone H3 tail with tri-methylated lysine 4 was used as template for structure based design of a cyclic, cell-penetrating peptide that exhibits micromolar binding affinity to PHF8 in biochemical assays...
April 21, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28429734/neuroprotective-pentapeptide-cn-105-is-associated-with-reduced-sterile-inflammation-and-improved-functional-outcomes-in-a-traumatic-brain-injury-murine-model
#18
Daniel T Laskowitz, Haichen Wang, Tony Chen, David T Lubkin, Viviana Cantillana, Tian Ming Tu, Dawn Kernagis, Guanen Zhou, Gary Macy, Bradley J Kolls, Hana N Dawson
At present, there are no proven pharmacological treatments demonstrated to improve long term functional outcomes following traumatic brain injury(TBI). In the setting of non-penetrating TBI, sterile brain inflammatory responses are associated with the development of cerebral edema, intracranial hypertension, and secondary neuronal injury. There is increasing evidence that endogenous apolipoprotein E(apoE) modifies the neuroinflammatory response through its role in downregulating glial activation, however, the intact apoE holoprotein does not cross the blood-brain barrier due to its size...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429294/ocular-cubosome-drug-delivery-system-for-timolol-maleate-preparation-characterization-cytotoxicity-ex-vivo-and-in-vivo-evaluation
#19
Jiayuan Huang, Tingting Peng, Yanrong Li, Zhengwen Zhan, Youmei Zeng, Ying Huang, Xin Pan, Chuan-Yu Wu, Chuanbin Wu
Glaucoma is an ocular disease featuring increased intraocular pressure (IOP) and its primary treatment strategy is to lower IOP by medication. Current ocular drug delivery in treating glaucoma is confronting a variety of challenges, such as low corneal permeability and bioavailability due to the unique anatomical structure of the human eye. To tackle these challenges, a cubosome drug delivery system for glaucoma treatment was constructed for timolol maleate (TM) in this study. The TM cubosomes (liquid crystalline nanoparticles) were prepared using glycerol monooleate and poloxamer 407 via high-pressure homogenization...
April 20, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28428278/oncogenic-role-of-snd1-in-development-and-progression-of-hepatocellular-carcinoma
#20
Nidhi Jariwala, Devaraja Rajasekaran, Rachel G Mendoza, Xue-Ning Shen, Ayesha Siddiq, Maaged Akiel, Chadia L Robertson, Mark A Subler, Jolene Windle, Paul B Fisher, Arun J Sanyal, Devanand Sarkar
SND1, a subunit of the miRNA regulatory complex RISC, has been implicated as an oncogene in hepatocellular carcinoma (HCC). In this study, we show that hepatocyte-specific SND1 transgenic mice (Alb/SND1 mice) develop spontaneous HCC with partial penetrance and exhibit more highly aggressive HCC induced by chemical carcinogenesis. Livers from Alb/SND1 mice exhibited a relative increase in inflammatory markers and spheroid-generating tumor initiating cells (TIC). Mechanistic investigations defined roles for Akt and NF-kappaB signaling pathways in promoting TIC formation in Alb/SND1 mice...
April 20, 2017: Cancer Research
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