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https://www.readbyqxmd.com/read/28545257/the-reactive-sulfur-species-concept-15-years-on
#1
REVIEW
Gregory I Giles, Muhammad Jawad Nasim, Wesam Ali, Claus Jacob
Fifteen years ago, in 2001, the concept of "Reactive Sulfur Species" or RSS was advocated as a working hypothesis. Since then various organic as well as inorganic RSS have attracted considerable interest and stimulated many new and often unexpected avenues in research and product development. During this time, it has become apparent that molecules with sulfur-containing functional groups are not just the passive "victims" of oxidative stress or simple conveyors of signals in cells, but can also be stressors in their own right, with pivotal roles in cellular function and homeostasis...
May 23, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28545163/coccygeal-body-revisited-an-immunohistochemical-study-using-donated-elderly-cadavers
#2
Zhe Wu Jin, Kwang Ho Cho, Hyung Suk Jang, Gen Murakami, Jose Francisco Rodríguez-Vázquez, Masahito Yamamoto, Shin-Ichi Abe
To describe the normal anatomy and histology of the adult coccygeal body (CB) and to discuss about the origin and function. Using immunohistochemistry, we examined 29 CBs found in 32 elderly donated cadavers without macroscopic pathology in the pelvis. The CB was usually located in or near the anococcygeal ligaments. It was almost always composed of multiple masses or nodules of round glomus cells (smooth muscle actin, or SMA++). However, the CB sometimes contained abundant dilated veins with scattered glomus cells...
May 25, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28544204/receipt-and-use-of-spoken-and-written-over-the-counter-medicine-information-insights-into-australian-and-uk-consumers-experiences
#3
Vivien Tong, David K Raynor, Parisa Aslani
OBJECTIVES: To explore Australian and UK consumers' receipt and use of spoken and written medicine information and examine the role of leaflets for consumers of over-the-counter (OTC) medicines. METHODS: Semistructured interviews were conducted with 37 Australian and 39 UK consumers to explore information received with their most recent OTC medicine purchase, and how information was used at different times post-purchase. Interviews were audio-recorded, transcribed verbatim and thematically analysed...
May 24, 2017: International Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28542517/revisiting-the-discriminatory-accuracy-of-traditional-risk-factors-in-preeclampsia-screening
#4
Merida Rodriguez-Lopez, Philippe Wagner, Raquel Perez-Vicente, Fatima Crispi, Juan Merlo
BACKGROUND: Preeclampsia (PE) is associated with a high risk of perinatal morbidity and mortality. However, there is no consensus in the definition of high-risk women. AIM: To question current definition of high PE risk and propose a definition that considers individual heterogeneity to improves risk classification. METHODS: A stratified analysis by parity was conducted using the Swedish Birth Register between 2002-2010 including 626.600 pregnancies...
2017: PloS One
https://www.readbyqxmd.com/read/28542416/soil-texture-analysis-revisited-removal-of-organic-matter-matters-more-than-ever
#5
Johannes Lund Jensen, Per Schjønning, Christopher W Watts, Bent T Christensen, Lars J Munkholm
Exact estimates of soil clay (<2 μm) and silt (2-20 μm) contents are crucial as these size fractions impact key soil functions, and as pedotransfer concepts based on clay and silt contents are becoming increasingly abundant. We examined the effect of removing soil organic matter (SOM) by H2O2 before soil dispersion and determination of clay and silt. Soil samples with gradients in SOM were retrieved from three long-term field experiments each with uniform soil mineralogy and texture. For soils with less than 2 g C 100 g-1 minerals, clay estimates were little affected by SOM...
2017: PloS One
https://www.readbyqxmd.com/read/28541281/revisiting-the-prevalence-of-nonclassic-congenital-adrenal-hyperplasia-in-us-ashkenazi-jews-and-caucasians
#6
Fady Hannah-Shmouni, Rachel Morissette, Ninet Sinaii, Meredith Elman, Toni R Prezant, Wuyan Chen, Ann Pulver, Deborah P Merke
PurposeNonclassic 21-hydroxylase deficiency, a mild form of congenital adrenal hyperplasia (CAH), is estimated to be the most common autosomal recessive condition, with an especially high prevalence in Ashkenazi Jews (3.7% affected, 30.9% carriers), based on a 1985 HLA-B linkage study of affected families. Affected individuals, especially women, may suffer from hyperandrogenism and infertility. State-of-the-art genetic studies have not been done to confirm these remarkable rates.MethodsCYP21A2 genotyping was performed in 200 unrelated healthy Ashkenazi Jewish subjects and 200 random US Caucasians who did not self-identify as a specific ethnicity using multiplex minisequencing, real-time polymerase chain reaction and junction site analysis...
May 25, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28540843/genome-wide-significance-for-pclo-as-a-gene-for-major-depressive-disorder
#7
Hamdi Mbarek, Yuri Milaneschi, Jouke-Jan Hottenga, Lannie Ligthart, Eco J C de Geus, Erik A Ehli, Gonneke Willemsen, Gareth E Davies, Jan H Smit, Dorret I Boomsma, Brenda W J H Penninx
In 2009, the first genome-wide association study (GWAS) for major depressive disorder (MDD) highlighted an association with PCLO locus on chromosome 7, although not reaching genome-wide significance level. In the present study, we revisited the original GWAS after increasing the overall sample size and the number of interrogated SNPs. In an analysis comparing 1,942 cases with lifetime diagnosis of MDD and 4,565 controls, PCLO showed a genome-wide significant association with MDD at SNP (rs2715157, p = 2.91 × 10-8) and gene-based (p = 1...
May 25, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28540429/identification-of-markers-for-quiescent-pancreatic-stellate-cells-in-the-normal-human-pancreas
#8
Michael Friberg Bruun Nielsen, Michael Bau Mortensen, Sönke Detlefsen
Pancreatic stellate cells (PSCs) play a central role as source of fibrogenic cells in pancreatic cancer and chronic pancreatitis. In contrast to quiescent hepatic stellate cells (qHSCs), a specific marker for quiescent PSCs (qPSCs) that can be used in formalin-fixed and paraffin embedded (FFPE) normal human pancreatic tissue has not been identified. The aim of this study was to identify a marker enabling the identification of qPSCs in normal human FFPE pancreatic tissue. Immunohistochemical (IHC), double-IHC, immunofluorescence (IF) and double-IF analyses were carried out using a tissue microarray consisting of cores with normal human pancreatic tissue...
May 25, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28539428/cutting-edge-dual-tcr%C3%AE-expression-poses-an-autoimmune-hazard-by-limiting-regulatory-t-cell-generation
#9
Nathaniel J Schuldt, Jennifer L Auger, Justin A Spanier, Tijana Martinov, Elise R Breed, Brian T Fife, Kristin A Hogquist, Bryce A Binstadt
Despite accounting for 10-30% of the T cell population in mice and humans, the role of dual TCR-expressing T cells in immunity remains poorly understood. It has been hypothesized that dual TCR T cells pose an autoimmune hazard by allowing self-reactive TCRs to escape thymic selection. We revisited this hypothesis using the NOD murine model of type 1 diabetes. We bred NOD mice hemizygous at both TCRα and β (TCRα(+/-) β(+/-)) loci, rendering them incapable of producing dual TCR T cells. We found that the lack of dual TCRα expression skewed the insulin-specific thymocyte population toward greater regulatory T (Treg) cell commitment, resulting in a more tolerogenic Treg to conventional T cell ratio and protection from diabetes...
May 24, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28539348/revisiting-the-contribution-of-auditory-cortex-to-frequency-following-responses
#10
Emma Holmes, Björn Herrmann
No abstract text is available yet for this article.
May 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28539184/effects-of-age-related-shifts-in-cellular-function-and-local-microenvironment-upon-the-innate-immune-response-to-implants
#11
REVIEW
Bryan N Brown, Martin J Haschak, Samuel T Lopresti, Elizabeth C Stahl
The host macrophage response is now well recognized as a predictor of the success or failure of biomaterial implants following placement. More specifically, shifts from an "M1" pro-inflammatory towards a more "M2-like" anti-inflammatory macrophage polarization profile have been shown to result in enhanced material integration and/or tissue regeneration downstream. As a result, a number of biomaterials-based approaches to controlling macrophage polarization have been developed. However, the ability to promote such activity is predicated upon an in-depth, context-dependent understanding of the host response to biomaterials...
May 20, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28537521/the-water-drinking-test-revisited-an-analysis-of-test-results-in-subjects-with-glaucoma
#12
M Reza Razeghinejad, Zahra Tajbakhsh, M Hossein Nowroozzadeh, Shane J Havens, Deepta Ghate, Vikas Gulati
PURPOSE: The Water-Drinking Test (WDT) has been shown to predict the diurnal IOP change. This study evaluates the factors that may affect the WDT results. METHODS: This study was conducted on 203 glaucoma patients who had undergone trabeculectomy (53) or tube surgery (31), or had a medically controlled open-angle (82) or closed-angle (37) glaucoma. IOP was measured at baseline and then every 15 minutes over a one-hour period after drinking water. The main outcome measures were IOP change (increase in IOP from baseline) at all measurement time points, IOP peak (highest IOP after drinking water), IOP fluctuation (difference between IOP peak and baseline), and assessing the association of these IOPs with a patient's demographic and management modalities...
May 24, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28536541/revisiting-the-link-between-job-satisfaction-and-life-satisfaction-the-role-of-basic-psychological-needs
#13
Wenceslao Unanue, Marcos E Gómez, Diego Cortez, Juan C Oyanedel, Andrés Mendiburo-Seguel
The link between job satisfaction and life satisfaction has been extensively explored in the relevant literature. However, the great majority of past research has been carried out using cross-sectional analyses, and almost exclusively in the Western world. Moreover, the underlying psychological mechanisms explaining the link are not yet completely understood. Thus, we report the first research to date which uses both cross-sectional and longitudinal data among workers in Chile-a fast-developing Latin American economy-and which aims to tackle previous limitations...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28536456/use-of-genetically-modified-bacteria-for-drug-delivery-in-humans-revisiting-the-safety-aspect
#14
Udo Wegmann, Ana Lucia Carvalho, Martin Stocks, Simon R Carding
The use of live, genetically modified bacteria as delivery vehicles for biologics is of considerable interest scientifically and has attracted significant commercial investment. We have pioneered the use of the commensal gut bacterium Bacteroides ovatus for the oral delivery of therapeutics to the gastrointestinal tract. Here we report on our investigations of the biological safety of engineered B. ovatus bacteria that includes the use of thymineless death as a containment strategy and the potential for the spread of transgenes in vivo in the mammalian gastrointestinal tract...
May 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28535970/upper-extremity-deep-venous-thrombosis-after-port-insertion-what-are-the-risk-factors
#15
Omidreza Tabatabaie, Gyulnara G Kasumova, Tara S Kent, Mariam F Eskander, Ayotunde B Fadayomi, Sing Chau Ng, Jonathan F Critchlow, Nicholas E Tawa, Jennifer F Tseng
BACKGROUND: Totally implantable venous access devices (ports) are widely used, especially for cancer chemotherapy. Although their use has been associated with upper extremity deep venous thrombosis, the risk factors of upper extremity deep venous thrombosis in patients with a port are not studied adequately. METHODS: The Healthcare Cost and Utilization Project's Florida State Ambulatory Surgery and Services Database was queried between 2007 and 2011 for patients who underwent outpatient port insertion, identified by Current Procedural Terminology code...
May 20, 2017: Surgery
https://www.readbyqxmd.com/read/28535799/the-spleen-in-liver-cirrhosis-revisiting-an-old-enemy-with-novel-targets
#16
REVIEW
Liang Li, Mubing Duan, Weisan Chen, An Jiang, Xiaoming Li, Jun Yang, Zongfang Li
The spleen is a secondary lymphoid organ which can influence the progression of multiple diseases, notably liver cirrhosis. In chronic liver diseases, splenomegaly and hypersplenism can manifest following the development of portal hypertension. These splenic abnormalities correlate with and have been postulated to facilitate the progression of liver fibrosis to cirrhosis, although precise mechanisms remain poorly understood. In this review, we summarize the literature to highlight the mechanistic contributions of splenomegaly and hypersplenism to the development of liver cirrhosis, focusing on three key aspects: hepatic fibrogenesis, hepatic immune microenvironment dysregulation and liver regeneration...
May 23, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28534587/light-induced-relaxation-dynamics-of-the-ferricyanide-ion-revisited-by-ultrafast-xuv-photoelectron-spectroscopy
#17
Nicholas Engel, Sergey I Bokarev, Alexandre Moguilevski, Azhr A Raheem, Ruba Al-Obaidi, Tobias Möhle, Gilbert Grell, Katrin R Siefermann, Bernd Abel, Saadullah G Aziz, Oliver Kühn, Mario Borgwardt, Igor Yu Kiyan, Emad F Aziz
Photoinduced charge transfer in transition-metal coordination complexes plays a prominent role in photosynthesis and is fundamental for light-harvesting processes in catalytic materials. However, revealing the relaxation pathways of charge separation remains a very challenging task because of the complexity of relaxation channels and ultrashort time scales. Here, we employ ultrafast XUV photoemission spectroscopy to monitor fine mechanistic details of the electron dynamics following optical ligand-to-metal charge-transfer excitation of ferricyanide in aqueous solution...
May 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28534573/solvent-dependent-nuclearity-geometry-and-catalytic-activity-of-sphos-pd-ph-cl-2
#18
John B Brazier, Mark A Newton, Elena M Barreiro, Luis A Adrio, Leticia Naya, King Kuok Mimi Hii
The nuclearity and structures of the palladium complex [(SPhos)Pd(Ph)Cl]2 in the solid and solution states are revisited using a combination of Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy, NMR spectroscopy, mass spectrometry, DFT calculations and trapping experiments. The complex was tested for its catalytic activity in the coupling reaction between chlorobenzene and n-hexylamine, where different deactivation behaviours were observed in toluene, 1,4-dioxane and DMF.
May 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28533539/a-single-walker-approach-for-studying-quasi-nonergodic-systems
#19
Zilvinas Rimas, Sergei N Taraskin
The jump-walking Monte-Carlo algorithm is revisited and updated to study the equilibrium properties of systems exhibiting quasi-nonergodicity. It is designed for a single processing thread as opposed to currently predominant algorithms for large parallel processing systems. The updated algorithm is tested on the Ising model and applied to the lattice-gas model for sorption in aerogel at low temperatures, when dynamics of the system is critically slowed down. It is demonstrated that the updated jump-walking simulations are able to produce equilibrium isotherms which are typically hidden by the hysteresis effect characteristic of the standard single-flip simulations...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28531392/a-randomised-controlled-feasibility-and-proof-of-concept-trial-in-delayed%C3%A2-gastric-emptying-when-metoclopramide-fails-we-should-revisit%C3%A2-nasointestinal-feeding-versus-dual-prokinetic-treatment-achieving-goal-nutrition-in-critical-illness-and-delayed-gastric
#20
Stephen J Taylor, Kaylee Allan, Helen McWilliam, Alex Manara, Jules Brown, Rosemary Greenwood, Deirdre Toher
BACKGROUND & AIMS: Delayed gastric emptying (DGE) commonly limits the use of enteral nutrition (EN) and may increase ventilator-associated pneumonia. Nasointestinal feeding has not been tested against dual prokinetic treatment (Metoclopramide and Erythromycin) in DGE refractory to metoclopramide. This trial tests the feasibility of recruiting this 'treatment-failed' population and the proof of concept that nasointestinal (NI) feeding can increase the amount of feed tolerated (% goal) when compared to nasogastric (NG) feeding plus metoclopramide and erythromycin treatment...
August 2016: Clinical Nutrition ESPEN
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