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https://www.readbyqxmd.com/read/27880879/arsenic-levels-among-pregnant-women-and-newborns-in-canada-results-from-the-maternal-infant-research-on-environmental-chemicals-mirec-cohort
#1
Adrienne S Ettinger, Tye E Arbuckle, Mandy Fisher, Chun Lei Liang, Karelyn Davis, Ciprian-Mihai Cirtiu, Patrick Bélanger, Alain LeBlanc, William D Fraser
Arsenic is a common environmental contaminant from both naturally-occurring and anthropomorphic sources and human exposure can be detected in various tissues. Its toxicity depends on many factors including the chemical form, valence state, bioavailability, metabolism and detoxification within the human body. Of paramount concern, particularly with respect to health effects in children, is the timing of exposure as the prenatal and early life periods are more susceptible to toxic effects. The Maternal-Infant Research on Environmental Chemicals (MIREC) cohort was established to obtain national-level biomonitoring data for approximately 2,000 pregnant women and their infants between 2008 and 2011 from 10 Canadian cities...
November 20, 2016: Environmental Research
https://www.readbyqxmd.com/read/27868218/simultaneous-determination-of-l-tetrahydropalmatine-and-its-active-metabolites-in-rat-plasma-by-a-sensitive-ultra-high-performance-liquid-chromatography-with-tandem-mass-spectrometry-method-and-its-application-in-a-pharmacokinetic-study
#2
Weihui Wang, Jing Liu, Xiaoning Zhao, Yan Peng, Nannan Wang, David Y W Lee, Ronghua Dai
A sensitive and reliable ultra high performance liquid chromatography with tandem mass spectrometry (UHPLC-MS/MS) method was developed and validated for simultaneous determination of L-tetrahydropalmatine (L-THP) and its active metabolites L-isocorypalmine (L-ICP) and L-corydalmine (L-CD) in rat plasma,. The analytes were extracted by liquid-liquid extraction and separated on a Bonshell ASB C18 column (2.1 mm × 100 mm; 2.7 µm; Agela) using acetonitrile-formic acid aqueous as mobile phase at a flow rate of 0...
November 21, 2016: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/27866338/reflections-on-serving-remote-mountain-communities-mobile-hospitals-and-women-s-and-children-s-health-care-in-northern-haiti
#3
Rose-Marie Chierici, Thony Michelet Voltaire
In 2003 Alyans Sante Borgne's (ASB) conducted the first week-long mobile hospital in Molas, a poor mountain community a 10-h walk from the main hospital in the town of Borgne in North Haiti. ASB is a partnership between Haiti Outreach-Pwoje Espwa (H.O.P.E.), a US-based NGO, and Haiti's Ministry of Health. The paper reflects on this first experience and the evolution of an indigenous model of health care delivery, Sante Nan Lakou (SNL)/Health at the Extended Family Level, a model that prioritizes the needs of patients over those of the institution...
November 19, 2016: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/27849023/the-genesis-of-adiabatic-shear-bands
#4
P Landau, S Osovski, A Venkert, V Gärtnerová, D Rittel
Adiabatic shear banding (ASB) is a unique dynamic failure mechanism that results in an unpredicted catastrophic failure due to a concentrated shear deformation mode. It is universally considered as a material or structural instability and as such, ASB is hardly controllable or predictable to some extent. ASB is modeled on the premise of stability analyses. The leading paradigm is that a competition between strain (rate) hardening and thermal softening determines the onset of the failure. It was recently shown that microstructural softening transformations, such as dynamic recrystallization, are responsible for adiabatic shear failure...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27845391/effect-of-bovine-pericardial-extracellular-matrix-scaffold-niche-on-seeded-human-mesenchymal-stem-cell-function
#5
Zhi Zhao Liu, Maelene L Wong, Leigh G Griffiths
Numerous studies have focused on generation of unfixed bovine pericardium (BP) extracellular matrix (ECM) for clinical application. However, the extent to which maintenance of native ECM niche is capable of directing behavior of repopulating cells remains relatively unexplored. By exploiting the sidedness of BP scaffolds (i.e., serous or fibrous surface), this study aims to determine the effect of ECM niche preservation on cellular repopulation using different scaffold generation methods. BP underwent either sodium dodecyl sulfate (SDS) decellularization or stepwise, solubilization-based antigen removal using amidosulfobetaine-14 (ASB-14)...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27814620/mucopolysaccharidosis-vi-pathophysiology-diagnosis-and-treatment
#6
Paul Harmatz, Renee Shediac
Mucopolysaccharidosis VI (MPS VI), or Maroteaux-Lamy syndrome, is an autosomal recessive lysosomal storage disorder caused by deficient activity of the enzyme arylsulfatase B (ASB). Progressive accumulation of glycosaminoglycans (GAGs) in organs and tissues leads to the development of multisystem clinical manifestations. The presentation of MPS VI is genotypically and phenotypically diverse, with a large number of potential disease-causing mutations and a phenotypic spectrum ranging from very slowly to very rapidly progressing disease...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27806709/benefits-and-harms-of-screening-for-and-treatment-of-asymptomatic-bacteriuria-in-pregnancy-a-systematic-review
#7
Konstanze Angelescu, Barbara Nussbaumer-Streit, Wiebke Sieben, Fülöp Scheibler, Gerald Gartlehner
BACKGROUND: Most European and North American clinical practice guidelines recommend screening for asymptomatic bacteriuria (ASB) as a routine pregnancy test. Antibiotic treatment of ASB in pregnant women is supposed to reduce maternal upper urinary tract infections (upper UTIs) and preterm labour. However, most studies supporting the treatment of ASB were conducted in the 1950s to 1980s. Because of subsequent changes in treatment options for ASB and UTI, the applicability of findings from these studies has come into question...
November 2, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27790904/accumulation-and-transport-of-roxarsone-arsenobetaine-and-inorganic-arsenic-using-the-human-immortalized-caco-2-cell-line
#8
Qingqing Liu, Elaine M Leslie, X Chris Le
Roxarsone (Rox), an organoarsenic compound, has been widely used as a feed additive by the poultry industry. Residual amounts of Rox can be present in chicken meat which gives rise to potential human exposure to Rox. However, studies on the bioavailability of Rox in humans are scarce. We report here the accumulation and transepithelial transport of Rox using the human colon-derived adenocarcinoma cell line (Caco-2) model. The cellular accumulation and transepithelial passage of Rox in Caco-2 cells were evaluated and compared to that of arsenobetaine (AsB), arsenite [As(III)], and arsenate [As(V)]...
October 28, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27780014/clinical-presentations-and-epidemiology-of-urinary-tract-infections
#9
Suzanne E Geerlings
Urinary tract infection (UTI) is one of the most common bacterial infections, and the incidence in women is much higher than in men. The diagnosis of a UTI can be made based on a combination of symptoms and a positive urine analysis or culture. Most UTIs are uncomplicated UTIs, defined as cystitis in a woman who is not pregnant, is not immunocompromised, has no anatomical and functional abnormalities of the urogenital tract, and does not exhibit signs of tissue invasion and systemic infection. All UTIs that are not uncomplicated are considered to be complicated UTIs...
October 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/27744161/evaluation-of-in-utero-exposure-to-arsenic-in-south-africa
#10
Halina B Röllin, Kalavati Channa, Bukola G Olutola, Jon Ø Odland
Early life exposure to inorganic arsenic (iAs) has been shown to interfere with foetal and early childhood development, and is associated with morbidity and mortality in adulthood. The purpose of this study was to evaluate exposure to As in utero, to determine the association between maternal and cord blood of As and birth outcomes in South African populations. Total arsenic was measured in maternal blood of a total cohort (n=650) and in paired cord blood and urine of a subset cohort (n=317). Overall, the geometric mean (GM) of As in maternal blood was 0...
October 12, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27725366/bonding-effectiveness-of-composite-dentin-interfaces-after-mechanical-loading-with-a-new-device-rub-roll
#11
Anelise Fernandes Montagner, Niek J Opdam, Jan L Ruben, Maximiliano Sérgio Cenci, Marie-Charlotte Huysmans
This study evaluated the effect of mechanical loading with a new device on the microtensile bond strength (µTBS) of adhesive systems to dentin. Forty molars were divided according to adhesive systems: self-etch (Clearfil(TM) SE Bond -CSE) and etch-and-rinse (Adper Scotchbond(TM) 1XT -ASB); and to aging (n=5): control; MC1-250,000; MC2-500,000; and MC3-750,000 mechanical cycles. Microtensile bond strength was measured and fracture modes were analyzed. Data for µTBS were subjected to Kruskal-Wallis and post hoc tests (p<0...
December 1, 2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27689355/apo-aiv-and-citrulline-plasma-concentrations-in-short-bowel-syndrome-patients-the-influence-of-short-bowel-anatomy
#12
M Dolores López-Tejero, Núria Virgili, Jordi Targarona, Jorge Ruiz, Natalia García, Denise Oró, Judit García-Villoria, Gloria Creus, Ana M Pita
INTRODUCTION: Parenteral nutrition (PN) dependence in short bowel syndrome (SBS) patients is linked to the functionality of the remnant small bowel (RSB). Patients may wean off PN following a period of intestinal adaptation that restores this functionality. Currently, plasma citrulline is the standard biomarker for monitoring intestinal functionality and adaptation. However, available studies reveal that the relationship the biomarker with the length and function of the RSB is arguable...
2016: PloS One
https://www.readbyqxmd.com/read/27640675/dna-barcoding-reveal-patterns-of-species-diversity-among-northwestern-pacific-molluscs
#13
Shao'e Sun, Qi Li, Lingfeng Kong, Hong Yu, Xiaodong Zheng, Ruihai Yu, Lina Dai, Yan Sun, Jun Chen, Jun Liu, Lehai Ni, Yanwei Feng, Zhenzhen Yu, Shanmei Zou, Jiping Lin
This study represents the first comprehensive molecular assessment of northwestern Pacific molluscs. In total, 2801 DNA barcodes belonging to 569 species from China, Japan and Korea were analyzed. An overlap between intra- and interspecific genetic distances was present in 71 species. We tested the efficacy of this library by simulating a sequence-based specimen identification scenario using Best Match (BM), Best Close Match (BCM) and All Species Barcode (ASB) criteria with three threshold values. BM approach returned 89...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27611313/identifying-risk-and-protective-factors-in-recidivist-juvenile-offenders-a-decision-tree-approach
#14
Elena Ortega-Campos, Juan García-García, Maria José Gil-Fenoy, Flor Zaldívar-Basurto
Research on juvenile justice aims to identify profiles of risk and protective factors in juvenile offenders. This paper presents a study of profiles of risk factors that influence young offenders toward committing sanctionable antisocial behavior (S-ASB). Decision tree analysis is used as a multivariate approach to the phenomenon of repeated sanctionable antisocial behavior in juvenile offenders in Spain. The study sample was made up of the set of juveniles who were charged in a court case in the Juvenile Court of Almeria (Spain)...
2016: PloS One
https://www.readbyqxmd.com/read/27584085/comparative-contribution-of-trophic-transfer-and-biotransformation-on-arsenobetaine-bioaccumulation-in-two-marine-fish
#15
Wei Zhang, Zhiqiang Guo, Yanyan Zhou, Lizhao Chen, Li Zhang
Marine fish can accumulate high arsenic (As) concentrations, with arsenobetaine (AsB) as the major species in the body. However, whether the high AsB accumulation in fish occurs mainly through trophic transfer from diet or biotransformation in the fish body remains unclear. This study investigated the trophic transfer and biotransformation of As in two marine fish (seabream Acanthopagrus schlegeli and grunt Terapon jarbua) fed artificial and clam diets for 28 d. The different diets contained different proportions of inorganic [As(III) and As(V)] and organic [methylarsenate (MMA), dimethylarsenate (DMA), and AsB] As compounds...
October 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27578575/-comparison-of-two-contrast-agents-for-diagnosis-of-patent-foramen-ovale-by-contrast-transcranial-doppler
#16
Chao Liu, Ni-Na Zhai, Ning Bu, Meng-Yi Chen, Hai-Qin Wu
OBJECTIVE: To compare agitated saline solution (AS) and the mixture of AS with blood (ASb) as the contrast agents in contrast transcranial Doppler (c-TCD) in the diagnosis of patent foramen ovale (PFO). METHODS: We recruited 248 consecutive patients for c-TCD examination between November 2015 and January 2016, and the sequence of the use of AS (9 mL saline solution mixed with 1 mL air) and ASb (9 mL saline solution and a drop of the patient's blood mixed with 1 mL air) was determined by coin-tossing method...
August 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27566086/automated-vessel-segmentation-in-dual-energy-computed-tomography-data-of-the-pelvis-and-lower-extremities
#17
Michael Kostrzewa, Nils Rathmann, Jürgen Hesser, Kurt Huck, Stefan O Schönberg, Steffen J Diehl
AIM: To evaluate the clinical feasibility of a newly developed, fully automatic vessel segmentation software with automatic structured bone elimination (ASBE) using graph-matching and subvoxel analysis. MATERIALS AND METHODS: Dual energy computed tomography angiography (DECTA) data of 108 vessel segments were evaluated using the ASBE software and a commercial software against the digital subtraction angiography (DSA) standard of reference. RESULTS: Using the ASBE software, sensitivity increased from 87...
September 2016: In Vivo
https://www.readbyqxmd.com/read/27550082/attractive-toxic-sugar-bait-atsb-mixed-with-pyriproxyfen-for-control-of-larval-aedes-albopictus-diptera-culicidae-through-fecal-deposits-of-adult-mosquitoes
#18
Jodi M Scott, Kelly E Seeger, Jennifer Gibson-Corrado, Gunter C Muller, Rui-De Xue
Studies were conducted to determine if pyriproxyfen, an insect growth regulator (IGR) added to attractive toxic sugar baits (ATSBs) and ingested by adult Aedes albopictus (Skuse), could be fecally disseminated into water to inhibit emergence of mosquitoes (EI). Experimental treatments consisted of four dilutions of pyriproxyfen (0.5, 1, 5, and 10 ppb) in ATSB, with attractive sugar bait (ASB) serving as the negative control. To ensure no tarsal transfer of the IGR, the experimental treatments were dispensed in collagen sausages...
August 21, 2016: Journal of Medical Entomology
https://www.readbyqxmd.com/read/27527083/antistaphylococcal-%C3%AE-lactams-versus-vancomycin-for-treatment-of-infective-endocarditis-due-to-methicillin-susceptible-coagulase-negative-staphylococci-a-prospective-cohort-study-from-the-international-collaboration-on-endocarditis
#19
M Carugati, C A Petti, C Arnold, J M Miro, J M Pericàs, C Garcia de la Maria, Z Kanafani, E Durante-Mangoni, J Baddley, D Wray, J L Klein, F Delahaye, N Fernandez-Hidalgo, M M Hannan, D Murdoch, A Bayer, V H Chu
The phenotypic expression of methicillin resistance among coagulase-negative staphylococci (CoNS) is heterogeneous regardless of the presence of the mecA gene. The potential discordance between phenotypic and genotypic results has led to the use of vancomycin for the treatment of CoNS infective endocarditis (IE) regardless of methicillin MIC values. In this study, we assessed the outcome of methicillin-susceptible CoNS IE among patients treated with antistaphylococcal β-lactams (ASB) versus vancomycin (VAN) in a multicenter cohort study based on data from the International Collaboration on Endocarditis (ICE) Prospective Cohort Study (PCS) and the ICE-Plus databases...
October 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27514605/genitourinary-infections-in-diabetic-patients-in-the-new-era-of-diabetes-therapy-with-sodium-glucose-cotransporter-2-inhibitors
#20
M Rizzi, R Trevisan
AIMS: To review prevalence and significance of urinary tract (UTI) and genital infections (GI) in diabetes and the effects of sodium glucose cotransporter 2 (SGLT-2) inhibitors on these complications. DATA SYNTHESIS: The prevalence of asymptomatic bacteriuria (ASB) is 2-3 times higher in diabetic than in non-diabetic women. The treatment of ASB has no impact on the development of UTIs and/or a decline in renal function. Therefore, there is no indication for screening for and/or treatment of ASB...
July 12, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
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