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https://www.readbyqxmd.com/read/28731334/optical-spectra-and-magnetic-behavior-of-a-wide-range-of-europium-iii-oxo-compounds-analysis-of-the-ligand-field-effects
#1
Anna Bronova, Nils Kannengießer, Robert Glaum
The europium-oxygen interaction in nine different europium(III) oxo-compounds (including C-type Eu2O3) was investigated on the basis of powder reflectance spectra (near-IR/vis/UV) and temperature-dependent magnetic measurements. Computation of the transition energies and of the effective Bohr magneton numbers for Eu(3+) in the different ligand fields were performed within the framework of the angular overlap model (AOM) using the computer program BonnMag. These calculations show that all electronic transition energies in the optical spectra, the magnetic susceptibilities as well as their temperature dependence, are very well-accounted for by AOM...
July 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28725183/bile-acid-mediated-sphingosine-1-phosphate-receptor-2-signaling-promotes-neuroinflammation-during-hepatic-encephalopathy-in-mice
#2
Matthew McMillin, Gabriel Frampton, Stephanie Grant, Shamyal Khan, Juan Diocares, Anca Petrescu, Amy Wyatt, Jessica Kain, Brandi Jefferson, Sharon DeMorrow
Hepatic encephalopathy (HE) is a neuropsychiatric complication that occurs due to deteriorating hepatic function and this syndrome influences patient quality of life, clinical management strategies and survival. During acute liver failure, circulating bile acids increase due to a disruption of the enterohepatic circulation. We previously identified that bile acid-mediated signaling occurs in the brain during HE and contributes to cognitive impairment. However, the influences of bile acids and their downstream signaling pathways on HE-induced neuroinflammation have not been assessed...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28711947/repression-of-intestinal-transporters-and-fxr-fgf15-signaling-explains-bile-acids-dysregulation-in-experimental-colitis-associated-colon-cancer
#3
Lijuan Cao, Yuan Che, Tuo Meng, Shanshan Deng, Jun Zhang, Min Zhao, Wanfeng Xu, Dandan Wang, Zhichen Pu, Guangji Wang, Haiping Hao
Bile acids (BAs) are important endogenous signaling molecules that play vital roles in the pathological development of various diseases including colitis-associated cancer (CAC). BAs were previously found dysregulated under conditions of CAC; however, the exact patterns and underlying molecular mechanisms remain largely elusive. Based on the development of a method for comprehensive analysis of BAs, this study aims to elucidate the dysregulation patterns and involved mechanisms in a typical CAC model induced by azoxymethane (AOM)/dextran sodium sulfate (DSS)...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28708872/nasopharyngeal-microbiota-in-infants-and-changes-during-viral-upper-respiratory-tract-infection-and-acute-otitis-media
#4
Tasnee Chonmaitree, Kristofer Jennings, Georgiy Golovko, Kamil Khanipov, Maria Pimenova, Janak A Patel, David P McCormick, Michael J Loeffelholz, Yuriy Fofanov
BACKGROUND: Interferences between pathogenic bacteria and specific commensals are known. We determined the interactions between nasopharyngeal microbial pathogens and commensals during viral upper respiratory tract infection (URI) and acute otitis media (AOM) in infants. METHODS: We analyzed 971 specimens collected monthly and during URI and AOM episodes from 139 infants. The 16S rRNA V4 gene regions were sequenced on the Illumina MiSeq platform. RESULTS: Among the high abundant genus-level nasopharyngeal microbiota were Moraxella, Haemophilus, and Streptococcus (3 otopathogen genera), Corynebacterium, Dolosigranulum, Staphylococcus, Acinetobacter, Pseudomonas, and Bifidobacterium...
2017: PloS One
https://www.readbyqxmd.com/read/28708410/ab-initio-ligand-field-theory-analysis-and-covalency-trends-in-actinide-and-lanthanide-free-ions-and-octahedral-complexes
#5
Julie Jung, Mihail Atanasov, Frank Neese
Actinide chemistry is gaining increased focus in modern research, particularly in the fields of energy research and molecular magnetism. However, the structure-function and structure-property relationships of actinides have still not been studied as intensely as those for transition metals. In this work, we report a detailed ab initio study of the spectroscopic, magnetic, and bonding properties of the trivalent actinide free ions and their associated hexachloride complexes in octahedral symmetry. The electronic structures of these systems are examined using complete active-space self-consistent-field calculations followed by second-order N-electron valence perturbation theory, including both scalar relativistic and spin-orbit-coupling effects...
July 14, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28705546/a-comparative-study-on-the-long-term-outcome-of-total-knee-arthroplasty-performed-for-knees-stiff-in-extension-and-those-stiff-in-flexion
#6
Ashok Rajgopal, Inayat Panda, Vivek Dahiya
BACKGROUND: Patients with chronic stiff knee with extremely restricted arc of motion (AOM ≤ 20°) may present with stiffness either in extension (stiff in extension [SE]) or in flexion (stiff in flexion [SF]). The difference in the functional outcome after total knee arthroplasty between these 2 groups has not been elaborated in literature. METHODS: We retrospectively analyzed 96 patients (115 knees), who had undergone total knee arthroplasty between January 1990 and December 2010 for stiff or spontaneously ankylosed knees (AOM ≤ 20°)...
June 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28702433/korean-solar-salt-ameliorates-colon-carcinogenesis-in-an-aom-dss-induced-c57bl-6-mouse-model
#7
Jaehyun Ju, Yeung-Ju Kim, Eui Seong Park, Kun-Young Park
The effects of Korean solar salt on an azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colon cancer C57BL/6 mouse model were studied. Korean solar salt samples (SS-S, solar salt from S salt field; SS-Yb, solar salt from Yb salt field), nine-time-baked bamboo salt (BS-9x, made from SS-Yb), purified salt (PS), and SS-G (solar salt from Guérande, France) were orally administered at a concentration of 1% during AOM/DSS colon cancer induction, and compared for their protective effects during colon carcinogenesis in C57BL/6 mice...
June 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28700264/overall-effectiveness-of-pneumococcal-conjugate-vaccines-an-economic-analysis-of-phid-cv-and-pcv-13-in-the-immunization-of-infants-in-italy
#8
Paolo Castiglia, Lorenzo Pradelli, Stefano Castagna, Veronica Freguglia, Giorgio Palù, Susanna Esposito
Pneumococcal diseases are associated with a significant clinical and economic burden. The 7-valent pneumococcal conjugate vaccine (PCV-7) has been used for the immunization of newborns against invasive pneumococcal diseases (IPD) in Italy while now the pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) and the 13-valent pneumococcal conjugate vaccine (PCV-13) are available. The aim of this analysis was to compare the estimated health benefits, cost and cost-effectiveness of immunization strategies vs...
July 12, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28698657/anaerobic-oxidation-of-methane-coupled-with-extracellular-electron-transfer-to-electrodes
#9
Yaohuan Gao, Jangho Lee, Josh D Neufeld, Joonhong Park, Bruce E Rittmann, Hyung-Sool Lee
Anaerobic oxidation of methane (AOM) is an important process for understanding the global flux of methane and its relation to the global carbon cycle. Although AOM is known to be coupled to reductions of sulfate, nitrite, and nitrate, evidence that AOM is coupled with extracellular electron transfer (EET) to conductive solids is relatively insufficient. Here, we demonstrate EET-dependent AOM in a biofilm anode dominated by Geobacter spp. and Methanobacterium spp. using carbon-fiber electrodes as the terminal electron sink...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28686892/anaerobic-oxidation-of-methane-by-aerobic-methanotrophs-in-sub-arctic-lake-sediments
#10
Karla Martinez-Cruz, Mary-Cathrine Leewis, Ian Charold Herriott, Armando Sepulveda-Jauregui, Katey Walter Anthony, Frederic Thalasso, Mary Beth Leigh
Anaerobic oxidation of methane (AOM) is a biological process that plays an important role in reducing the CH4 emissions from a wide range of ecosystems. Arctic and sub-Arctic lakes are recognized as significant contributors to global methane (CH4) emission, since CH4 production is increasing as permafrost thaws and provides fuels for methanogenesis. Methanotrophy, including AOM, is critical to reducing CH4 emissions. The identity, activity, and metabolic processes of anaerobic methane oxidizers are poorly understood, yet this information is critical to understanding CH4 cycling and ultimately to predicting future CH4 emissions...
July 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28686677/mdr1a-deficiency-restrains-tumor-growth-in-murine-colitis-associated-carcinogenesis
#11
Eva Maria Hennenberg, Annette Eyking, Henning Reis, Elke Cario
Patients with Ulcerative Colitis (UC) have an increased risk to develop colitis-associated colorectal cancer (CAC). Here, we found that protein expression of ABCB1 (ATP Binding Cassette Subfamily B Member 1) / MDR1 (multidrug resistance 1) was diminished in the intestinal mucosa of patients with active UC with or without CAC, but not in non-UC patients with sporadic colon cancer. We investigated the consequences of ABCB1/MDR1 loss-of-function in a common murine model for CAC (AOM/DSS). Mice deficient in MDR1A (MDR1A KO) showed enhanced intratumoral inflammation and cellular damage, which were associated with reduced colonic tumor size and decreased degree of dysplasia, when compared to wild-type (WT)...
2017: PloS One
https://www.readbyqxmd.com/read/28684920/bacteriotherapy-with-streptococcus-salivarius-24smb-and-streptococcus-oralis-89a-nasal-spray-for-preventing-recurrent-acute-otitis-media-in-children-a-real-life-clinical-experience
#12
Ignazio La Mantia, Attilio Varricchio, Giorgio Ciprandi
Recurrence of acute otitis media (RAOM) is a relevant issue in the clinical practice. "Bacteriotherapy" has been proposed as an option in children with RAOM. Streptococcus salivarius 24SMB nasal spray has been previously demonstrated to reduce the risk of acute otitis media (AOM) in otitis-prone children. The current retrospective and observational study aimed to confirm this outcome in a real-life setting, such as the common pediatric practice. Group A (108 children) served as control; group B (159 children) was treated with S...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28676722/the-role-of-the-notch-signal-pathway-in-mucosal-cell-metaplasia-in-mouse-acute-otitis-media
#13
Xiang Liu, Ning Cong, Xiang Cheng, Rui Ma, Jing Wang, Yi-Bo Huang, Meng Zhao, Xin-Wei Wang, Fang-Lu Chi, Dong-Dong Ren
Otitis media (OM) is a major cause of morbidity in pediatric and adult patients. This inflammatory condition is characterized by mucous cell hyperplasia that is thought to produce mucins from the middle ear mucosa. We are interested in the role of Notch signalling pathway in this inflammatory process. Using an acute otitis media (AOM) mouse model through injection of Streptococcus Pneumoniae into the middle ear, histopathologic examination and quantitative RT-PCR, acute inflammation with the thickness of mucosa, Goblet cell hyperplasia, and cilia loss were determined and gene expression related to the Notch signaling pathway were evaluated...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28676087/incidence-temporal-trend-and-factors-associated-with-ventilator-associated-pneumonia-in-mainland-china-a-systematic-review-and-meta-analysis
#14
Chengyi Ding, Yuelun Zhang, Zhirong Yang, Jing Wang, Aoming Jin, Weiwei Wang, Ru Chen, Siyan Zhan
BACKGROUND: Data to date is far from sufficient to describe the recent epidemiology of ventilator-associated pneumonia (VAP) in mainland China. This study aimed to estimate the overall incidence of VAP, with a special focus on its temporal trend and associated factors. METHODS: Meta-analyses of 195 studies published from 2010 to 2015 were conducted, followed by subgroup analyses by methodological quality, pre-defined setting characteristics and attributes of populations...
July 4, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28675863/polychlorinated-biphenyls-in-nepalese-surface-soils-spatial-distribution-air-soil-exchange-and-soil-air-partitioning
#15
Ishwar Chandra Yadav, Ningombam Linthoingambi Devi, Jun Li, Gan Zhang
Regardless of the ban on the polychlorinated biphenyls (PCBs) decade ago, significant measures of PCBs are still transmitted from essential sources in cities and are all inclusive ecological contaminants around the world. In this study, the concentrations of PCBs in soil, the air-soil exchange of PCBs, and the soil-air partitioning coefficient (KSA) of PCBs were investigated in four noteworthy urban areas in Nepal. Overall, the concentrations of ∑30PCBs ranged from 10 to 59.4ng/g dry weight; dw (mean 12.2ng/g ±11...
July 1, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28661695/treatment-of-chemotherapy-induced-peripheral-neuropathy-in-integrative-oncology-a-survey-of-acupuncture-and-oriental-medicine-practitioners
#16
Zhaoxue Lu, Jennifer Moody, Benjamin L Marx, Tracy Hammerstrom
OBJECTIVES: Complementary and alternative medicine is increasingly integrated into cancer care. We sought detail on the treatment of chemotherapy-induced peripheral neuropathy (CIPN) with acupuncture and oriental medicine (AOM) by surveying practitioners at integrative oncology (IO) sites across the United States. DESIGN: Online survey of licensed acupuncturists. SETTING/LOCATION: IO sites in the United States. SUBJECTS: Fifteen licensed acupuncturists who completed the survey between February 2014 and June 2014...
June 29, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28657970/trends-in-otitis-media-incidence-after-conjugate-pneumococcal-vaccination-a-national-observational-study
#17
Marie Gisselsson-Solen
BACKGROUND: Pneumococcal conjugate vaccine (PCV) was introduced in 2000. The first 7-valent vaccine was followed by a 13-valent vaccine (PCV13) with the same conjugate, and a 10-valent vaccine (PCV10), conjugated to protein D from H. influenzae. The vaccines offer some protection against pneumococcal acute otitis media (AOM), and, with PCV10, possibly also some protection against H. influenzae AOM. PCV7 was introduced in Sweden in 2009, but from 2010, Swedish counties were free to use either PCV13 or PCV10...
June 27, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28657468/cooked-chickpea-consumption-inhibits-colon-carcinogenesis-in-mice-induced-with-azoxymethane-and-dextran-sulfate-sodium
#18
Xariss M Sánchez Chino, Cristian Jiménez Martínez, Verónica R Vásquez Garzón, Isela Álvarez González, Saúl Villa Treviño, Eduardo Madrigal Bujaidar, Gloria Dávila Ortiz, Rafael Baltiérrez Hoyos
SCOPE: The objective of the study was to evaluate the effect of daily consumption of cooked chickpea (2% and 10%) in ICR male mice in which colon cancer was induced with azoxymethane and dextran sulfate sodium. METHODS AND RESULTS: The effect of consumption of 2% or 10% cooked chickpeas on carcinogenesis-induced colon azoxymethane (AOM)/dextran sulfate sodium (DSS) in ICR mice was determined. Protein oxidation and lipids were determined by colorimetric methods and oxidation of DNA through the identification of adducts 8-hydroxy-2'-desoxiguanosine and proliferation markers (proliferating cell nuclear antigen [PCNA], Ki-67, and β-catenin), and inflammation (cyclooxygenase [COX]-2 and inducible nitric oxide synthase [iNOS]) were identified by immunohistochemistry reactions...
July 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28654357/patients-with-paediatric-onset-multiple-sclerosis-are-at-higher-risk-of-cognitive-impairment-in-adulthood-an-italian-collaborative-study
#19
Luis Ruano, Mariana Branco, Emilio Portaccio, Benedetta Goretti, Claudia Niccolai, Francesco Patti, Clara Chisari, Paolo Gallo, Paola Grossi, Angelo Ghezzi, Marco Roscio, Flavia Mattioli, Chiara Stampatori, Marta Simone, Rosa Gemma Viterbo, Maria Pia Amato
BACKGROUND: Patients with paediatric-onset multiple sclerosis (POMS) could be at an increased risk for cognitive impairment (CI), given the potential harmful effects of disease activity in neurodevelopment. However, there is scarce information on their long-term cognitive outcomes. OBJECTIVE: To compare the prevalence and profile of CI between adults with a history of POMS and those with classic, adult-onset multiple sclerosis (AOMS). METHODS: Cognitive performance was assessed through the Brief Repeatable Battery (BRB) and the Stroop Test in consecutive patients referred to six Italian MS centres...
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28648180/kinetic-study-on-anaerobic-oxidation-of-methane-coupled-to-denitrification
#20
Hou Yu, Hiroyuki Kashima, John M Regan, Abid Hussain, Elsayed Elbeshbishy, Hyung-Sool Lee
Monod kinetic parameters provide information required for kinetic analysis of anaerobic oxidation of methane coupled to denitrification (AOM-D). This information is critical for engineering AOM-D processes in wastewater treatment facilities. We first experimentally determined Monod kinetic parameters for an AOM-D enriched culture and obtained the following values: maximum specific growth rate (μmax) 0.121/d, maximum substrate-utilization rate (qmax) 28.8mmol CH4/g cells-d, half maximum-rate substrate concentration (Ks) 83μΜ CH4, growth yield (Y) 4...
September 2017: Enzyme and Microbial Technology
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