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Giacomo Russo, Antonella Capuozzo, Francesco Barbato, Carlo Irace, Rita Santamaria, Lucia Grumetto
Bisphenol A (BPA) is a chemical used in numerous industrial applications. Due to its well ascertained toxicity as endocrine disruptor, industries have started to replace it with other bisphenols whose alleged greater safety is scarcely supported by literature studies. In this study, the toxicity of seven BPA analogues was evaluated using both in silico and in vitro techniques, as compared to BPA toxicity. Furthermore, their affinity indexes for phospholipids (i.e. phospholipophilicity) were determined by immobilized artificial membrane liquid chromatography (IAM-LC) and possible relationships with in vitro toxic activity were also investigated...
March 5, 2018: Chemosphere
Heather C Kaplan, Eileen King, Beth E White, Susan E Ford, Sandra Fuller, Michael A Krew, Michael P Marcotte, Jay D Iams, Jennifer L Bailit, Jo M Bouchard, Kelly Friar, Carole M Lannon
OBJECTIVE: To evaluate the success of a quality improvement initiative to reduce early elective deliveries at less than 39 weeks of gestation and improve birth registry data accuracy rapidly and at scale in Ohio. METHODS: Between February 2013 and March 2014, participating hospitals were involved in a quality improvement initiative to reduce early elective deliveries at less than 39 weeks of gestation and improve birth registry data. This initiative was designed as a learning collaborative model (group webinars and a single face-to-face meeting) and included individual quality improvement coaching...
March 8, 2018: Obstetrics and Gynecology
Ryuichiro Nakato, Katsuhiko Shirahige
Motivation: Chromatin immunoprecipitation followed by sequencing (ChIP-seq) can detect read-enriched DNA loci for point-source (e.g., transcription factor binding) and broad-source factors (e.g., various histone modifications). Although numerous quality metrics for ChIP-seq data have been developed, the 'peaks' thus obtained are still difficult to assess with respect to signal-to-noise ratio (S/N) and the percentage of false positives. Results: We developed a quality-assessment tool for ChIP-seq data, SSP (strand-shift profile), that quantifies S/N and peak reliability without peak calling...
March 8, 2018: Bioinformatics
Erin A S Clark, Steven J Weiner, Dwight J Rouse, Brian M Mercer, Uma M Reddy, Jay D Iams, Ronald J Wapner, Yoram Sorokin, Fergal D Malone, Mary J O'Sullivan, Alan M Peaceman, Gary D V Hankins, Donald J Dudley, Steve N Caritis
OBJECTIVE:  To evaluate the association of magnesium sulfate (MgSO4 ) exposure and candidate gene polymorphisms with adverse neurodevelopmental outcomes following preterm birth. STUDY DESIGN:  We performed a nested case-control analysis of a randomized trial of maternal MgSO4 before anticipated preterm birth for the prevention of cerebral palsy (CP). Cases were children who died within 1 year of life or were survivors with abnormal neurodevelopment at age 2 years...
March 6, 2018: American Journal of Perinatology
N G Jun Jie, Kok Ann Teo, Asim Shabbir, Tseng Tsai Yeo
Intra-abdominal metastasis (IAM) of central nervous system (CNS) tumors via ventriculoperitoneal shunt (VPS) is rare but has been previously reported (e.g., germinomas and medulloblastomas). However, there has been no previous report in the literature involving meningiomas. A case of primary rhabdoid meningioma with widespread intra-abdominal carcinomatosis after placement of a VPS in a 36-year-old man is described. The patient underwent preoperative angioembolization of the tumor, craniotomy, and surgical excision, followed by postoperative gamma knife radiosurgery...
January 2018: Asian Journal of Neurosurgery
Karna Gowda, Sarah Iams, Mary Silber
In many dryland environments, vegetation self-organizes into bands that can be clearly identified in remotely-sensed imagery. The status of individual bands can be tracked over time, allowing for a detailed remote analysis of how human populations affect the vital balance of dryland ecosystems. In this study, we characterize vegetation change in areas of the Horn of Africa where imagery taken in the early 1950s is available. We find that substantial change is associated with steep increases in human activity, which we infer primarily through the extent of road and dirt track development...
February 26, 2018: Scientific Reports
Emmanuelle Varlet-Marie, Yvon Sterkers, Marina Perrotte, Patrick Bastien
Toxoplasmosis is generally a benign infection caused by the protozoan parasite Toxoplasma gondii but can have severe consequences in fetuses of mothers infected during pregnancy (congenital toxoplasmosis) and immunocompromised individuals. PCR-based diagnostic tests have become crucial for its diagnosis. However, this molecular diagnosis essentially relies upon laboratory-developed methods and suffers from a lack of standardization, leading to great variation in methods and performance among laboratories. With the need for accreditation of clinical microbiological laboratories, the use of commercial PCR kits has become an attractive alternative; but thorough evaluation of newly commercialized kits by proficient groups is necessary before any recommendation can be made to parasitology laboratories by health authorities or learned societies...
February 22, 2018: International Journal for Parasitology
Milagros León-Barrios, Martha Helena Ramírez-Bahena, José M Igual, Álvaro Peix, Encarna Velázquez
A Gram-negative rod, designated strain LLAN61T , was isolated from a root nodule of Lotus lancerottensis growing in a saline soil sample from Lanzarote (Canary Islands). The strain grew optimally at 0.5 % (w/v) NaCl and tolerated up to 3.5 %. The 16S rRNA gene sequence analysis showed that strain LLAN61T belonged to genus Phyllobacterium and that Phyllobacterium leguminum ORS 1419T and Phyllobacterium myrsinacearum IAM 13584T are the closest related species with 97.93 and 97.86% similarity values, respectively...
February 13, 2018: International Journal of Systematic and Evolutionary Microbiology
Young Kwang Chae, Sangmin Chang, Taeyeong Ko, Jonathan Anker, Sarita Agte, Wade Iams, Wooyoung M Choi, Kyoungmin Lee, Marcelo Cruz
Epithelial-mesenchymal transition (EMT) is able to drive metastasis during progression of multiple cancer types, including non-small cell lung cancer (NSCLC). As resistance to immunotherapy has been associated with EMT and immune exclusion in melanoma, it is important to understand alterations to T-cell infiltration and the tumor microenvironment during EMT in lung adenocarcinoma and squamous cell carcinoma. We conducted an integrated analysis of the immune landscape in NSCLCs through EMT scores derived from a previously established 16 gene signature of canonical EMT markers...
February 13, 2018: Scientific Reports
Giacomo Russo, Lucia Grumetto, Roman Szucs, Francesco Barbato, Frederic Lynen
The Blood-Brain Barrier (BBB) plays an essential role in protecting the brain tissues against possible injurious substances. In the present work, 79 neutral, basic, acidic and amphoteric structurally unrelated analytes were considered and their chromatographic retention coefficients on immobilized artificial membrane (IAM) stationary phase were determined employing a mass spectrometry (MS) -compatible buffer based on ammonium acetate. Their BBB passage predictive strength was evaluated and the statistical models based on IAM indexes and in silico physico-chemical descriptors showed solid statistics (r2 (n-1) = 0...
February 7, 2018: European Journal of Pharmaceutics and Biopharmaceutics
Nemanja Kuzmanović, Joanna Puławska, Kornelia Smalla, Xavier Nesme
The plant tumorigenic strain NCPPB 1650T isolated from Rosa×hybrida, and four nonpathogenic strains isolated from tumors on grapevine (strain 384), raspberry (strain 839) and blueberry (strains B20.3 and B25.3) were characterized by using polyphasic taxonomic methods. Based on 16S rRNA gene phylogeny, strains were clustered within the genus Agrobacterium. Furthermore, multilocus sequence analysis (MLSA) based on the partial sequences of atpD, recA and rpoB housekeeping genes indicated that five strains studied form a novel Agrobacterium species...
February 1, 2018: Systematic and Applied Microbiology
Monika Kalinowska, Ewelina Bajko, Marzena Matejczyk, Piotr Kaczyński, Bożena Łozowicka, Włodzimierz Lewandowski
Lithium, sodium, potassium, rubidium and caesium salts of 5-O-caffeoylquinic acid (chlorogenic acid, 5-CQA) were synthesized and described by FT-IR (infrared spectroscopy), FT-Raman (Raman spectroscopy), UV (UV absorption spectroscopy), ¹H (400.15 MHz), 13C (100.63 MHz) NMR (nuclear magnetic resonance spectroscopy). The quantum-chemical calculations at the B3LYP/6-311++G** level were done in order to obtain the optimal structures, IR spectra, NBO (natural bond orbital) atomic charges, HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital) orbitals and chemical reactivity parameters for 5-CQA and Li, Na and K 5-CQAs (chlorogenates)...
February 4, 2018: International Journal of Molecular Sciences
A D Cruz, Iam Costa, F S Calazans, M F Aguiar, M O Barceleiro
This study aimed to assess longitudinally the radiopacity of resin composites under the influence of photoactivation and photoaging processes. Ten specimens (1 mm thick and 4 mm in diameter) of three different microhybrid resin composites, Filtek Z250 XT (R1), TPH 3 Spectrum (R2), and Opallis (R3), were prepared for this study. For longitudinal assessment of radiopacity, radiographic images were obtained five times. The first time (T1), the specimens were not photoactivated; the second time (T2), the specimens were photoactivated; and the next three times, photoaging was carried out, with images obtained at 24 hours (T3), 48 hours (T4), and 72 hours (T5) after this process...
February 2, 2018: Operative Dentistry
Mengsha Li, Rui Guo, Fei Yu, Xu Chen, Haiyan Zhao, Huixin Li, Jun Wu
Arthrobacter pascens ZZ21 is a plant-beneficial, fluoranthene-degrading bacterial strain found in the rhizosphere. The production of the phytohormone indole-3-aectic acid (IAA) by ZZ21 is thought to contribute to its ability to promote plant growth and remediate fluoranthene-contaminated soil. Using genome-wide analysis combined with metabolomic and high-performance liquid chromatography-mass spectrometry (HPLC-MS) analyses, we characterized the potential IAA biosynthesis pathways in A. pascens ZZ21. IAA production increased 4...
February 1, 2018: International Journal of Molecular Sciences
Sunil Goyal, Kiran Natarajan, Amarnath Devarasetty, T Sarankumar, Neha Chauhan, Mohan Kameswaran
Background: Ear and the lateral skull base surgery is challenging and yet fascinating for a Neuro-otologist. A thorough knowledge of the complex anatomy is indispensable for the surgeon in order to provide the best possible care. Methods: The aim of the study was to highlight the present day indications for translabyrinthine approach to IAM from a Neuro-otologist perspective. Results: There were a total of 7 patients who underwent Translabyrinthine approach at our centre...
January 2018: Medical Journal, Armed Forces India
Pawan Kapoor, Deepak Gaur
All facets of activity in the speciality of Aviation Medicine are essentially aimed at enhancing aerospace safety. This paper highlights some innovative changes brought about by Aerospace Medicine in the three major fields of the speciality namely, medical evaluation, aeromedical training and research. Based on lab and field studies, military aircrew are now permitted flying with Modifinil as 'Go' Pill and Zolpidem as 'No-Go' Pill during sustained operations. Several other drugs for disabilities like Hypertension and CAD are now permitted for aviators...
October 2017: Medical Journal, Armed Forces India
Jae Woong Yoon, Du Young Choi, Seung Hyun Lee, Sae Ron Sin, Seung Taek Yu
Background: Influenza-associated myositis (IAM) is a rare and poorly recognized complication of influenza infection in children, and is characterized by acute onset of severe pain in the lower extremities and a refusal to ambulate walk. We sought to understand the association between IAM and influenza B infection and to investigate its clinical and laboratory characteristics in affected children. Methods: Influenza B-associated myositis (IBAM) cases diagnosed in the pediatrics department of Wonkwang University Hospital from January 2010 and March 2016 were analyzed retrospectively...
January 2018: Korean Journal of Family Medicine
Malte Fugel, Dylan Jayatilaka, Emanuel Hupf, Jacob Overgaard, Venkatesha R Hathwar, Piero Macchi, Michael J Turner, Judith A K Howard, Oleg V Dolomanov, Horst Puschmann, Bo B Iversen, Hans-Beat Bürgi, Simon Grabowsky
Hirshfeld atom refinement (HAR) is a novel X-ray structure refinement technique that employs aspherical atomic scattering factors obtained from stockholder partitioning of a theoretically determined tailor-made static electron density. HAR overcomes many of the known limitations of independent atom modelling (IAM), such as too short element-hydrogen distances, r(X-H), or too large atomic displacement parameters (ADPs). This study probes the accuracy and precision of anisotropic hydrogen and non-hydrogen ADPs and of r(X-H) values obtained from HAR...
January 1, 2018: IUCrJ
Young Kwang Chae, Wooyoung M Choi, William H Bae, Jonathan Anker, Andrew A Davis, Sarita Agte, Wade T Iams, Marcelo Cruz, Maria Matsangou, Francis J Giles
Immunotherapy is emerging as a promising option for lung cancer treatment. Various endothelial adhesion molecules, such as integrin and selectin, as well as various cellular barrier molecules such as desmosome and tight junctions, regulate T-cell infiltration in the tumor microenvironment. However, little is known regarding how these molecules affect immune cells in patients with lung cancer. We demonstrated for the first time that overexpression of endothelial adhesion molecules and cellular barrier molecule genes was linked to differential infiltration of particular immune cells in non-small cell lung cancer...
January 18, 2018: Scientific Reports
Rosa-Laura Heredia-Bobadilla, Octavio Monroy-Vilchis, Martha M Zarco-González, Daniel Martínez-Gómez, Germán David Mendoza-Martínez, Armando Sunny
Amphibians are globally threatened by habitat loss and fragmentation; species within the order Ambystoma are not the exception, as there are 18 species of mole salamanders in México, of which 16 are endemic and all species are under some national or international status of protection. The mole salamander, Ambystoma altamirani is a microendemic species, which is distributed in central México, within the trans-Mexican volcanic belt, and is one of the most threatened species due to habitat destruction and the introduction of exotic species...
December 2017: Journal of Genetics
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