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https://www.readbyqxmd.com/read/28545136/assessment-of-the-quantiferon-tb-gold-in-tube-test-for-the-detection-of-mycobacterium-tuberculosis-infection-in-united-states-navy-recruits
#1
Jason M Lempp, Margan J Zajdowicz, Arlene L Hankinson, Sean R Toney, Lisa W Keep, James D Mancuso, Gerald H Mazurek
BACKGROUND: Immunologic tests such as the tuberculin skin test (TST) and QuantiFERON®-TB Gold In-Tube test (QFT-GIT) are designed to detect Mycobacterium tuberculosis infection, both latent M. tuberculosis infection (LTBI) and infection manifesting as active tuberculosis disease (TB). These tests need high specificity to minimize unnecessary treatment and high sensitivity to allow maximum detection and prevention of TB. METHODS: Estimate QFT-GIT specificity, compare QFT-GIT and TST results, and assess factor associations with test discordance among U...
2017: PloS One
https://www.readbyqxmd.com/read/28541376/dna-sequence-shape-kernel-enables-alignment-free-modeling-of-transcription-factor-binding
#2
Wenxiu Ma, Lin Yang, Remo Rohs, William Stafford Noble
Motivation: Transcription factors (TFs) bind to specific DNA sequence motifs. Several lines of evidence suggest that TF-DNA binding is mediated in part by properties of the local DNA shape: the width of the minor groove, the relative orientations of adjacent base pairs, etc. Several methods have been developed to jointly account for DNA sequence and shape properties in predicting TF binding affinity. However, a limitation of these methods is that they typically require a training set of aligned TF binding sites...
May 24, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28537071/clmsvault-a-software-suite-for-protein-cross-linking-mass-spectrometry-data-analysis-and-visualization
#3
Mathieu Courcelles, Jasmin Coulombe-Huntington, Émilie Cossette, Anne-Claude Gingras, Pierre Thibault, Michael Tyers
Protein cross-linking mass spectrometry (CL-MS) enables the sensitive detection of protein interactions and the inference of protein complex topology. The detection of chemical cross-links between protein residues can identify intra- and inter-protein contact sites and/or provide physical constraints for molecular modeling of protein structure. Recent innovations in cross-linker design, sample preparation, mass spectrometry and software tools have significantly improved CL-MS approaches. Although a number of algorithms now exist for the identification of cross-linked peptides from mass spectral data, a dearth of user-friendly analysis tools represent a practical bottleneck to the broad adoption of the approach...
May 24, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28536562/use-of-wild-type-or-recombinant-lactic-acid-bacteria-as-an-alternative-treatment-for-gastrointestinal-inflammatory-diseases-a-focus-on-inflammatory-bowel-diseases-and-mucositis
#4
REVIEW
Rodrigo D De Oliveira Carvalho, Fillipe L R do Carmo, Alberto de Oliveira Junior, Philippe Langella, Jean-Marc Chatel, Luis G Bermúdez-Humarán, Vasco Azevedo, Marcela S de Azevedo
The human gastrointestinal tract (GIT) is highly colonized by bacterial communities, which live in a symbiotic relationship with the host in normal conditions. It has been shown that a dysfunctional interaction between the intestinal microbiota and the host immune system, known as dysbiosis, is a very important factor responsible for the development of different inflammatory conditions of the GIT, such as the idiopathic inflammatory bowel diseases (IBD), a complex and multifactorial disorder of the GIT. Dysbiosis has also been implicated in the pathogenesis of other GIT inflammatory diseases such as mucositis usually caused as an adverse effect of chemotherapy...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28534827/optimizing-prednisolone-loading-into-distiller-s-dried-grain-kafirin-microparticles-and-in-vitro-release-for-oral-delivery
#5
Esther T L Lau, Stuart K Johnson, Barbara A Williams, Deirdre Mikkelsen, Elizabeth McCourt, Roger A Stanley, Ram Mereddy, Peter J Halley, Kathryn J Steadman
Kafirin microparticles have potential as colon-targeted delivery systems because of their ability to protect encapsulated material from digestive processes of the upper gastrointestinal tract (GIT). The aim was to optimize prednisolone loading into kafirin microparticles, and investigate their potential as an oral delivery system. Response surface methodology (RSM) was used to predict the optimal formulation of prednisolone loaded microparticles. Prednisolone release from the microparticles was measured in simulated conditions of the GIT...
May 19, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28533178/mucin-and-carbohydrate-stimulated-adhesion-and-subproteome-changes-of-the-probiotic-bacterium-lactobacillus-acidophilus-ncfm
#6
Hasan Ufuk Celebioglu, Sita Vaag Olesen, Kennie Prehn, Sampo J Lahtinen, Susanne Brix, Maher Abou Hachem, Birte Svensson
Adhesion to intestinal mucosa is a crucial property for probiotic bacteria. Adhesion is thought to increase host-bacterial interactions, thus potentially enabling health benefits to the host. Molecular events connected with adhesion and surface proteome changes were investigated for the probiotic Lactobacillus acidophilus NCFM cultured with established or emerging prebiotic carbohydrates as carbon source and in the presence of mucin, the glycoprotein of the epithelial mucus layer. Variation in adhesion to HT29-cells and mucin was associated with carbon source and mucin-induced subproteome abundancy differences...
May 19, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28532523/immune-responses-intestinal-microbiota-performance-and-blood-characteristics-of-japanese-quail-fed-on-diets-containing-camphor
#7
A Sedaghat, M A Karimi Torshizi
This study aimed to investigate the effect of supplemental camphor on the performance and immune functions of Japanese quail by feeding graded levels (0 (control), 250, 500, 750, 1000, 5000 or 10 000 ppm) of camphor during a 42-day feeding trial. In all, 280 1-day-old quail chicks were randomly assigned into 28 cages of 10 chicks each with separate feeders. The results clearly demonstrated that camphor did not have a significant effect on BW, BW gain, total experimental average daily feed intake, feed conversion ratio, internal organ relative weights and biochemical parameters such as uric acid, albumin, total protein and triglyceride; however, plasma cholesterol concentration was significantly different in a linear manner, in which 500 ppm of camphor resulted in a lower level of cholesterol...
May 23, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28532321/-210-polonium-bioaccessibility-assessment-in-algae-for-human-consumption-an-in-vitro-gastrointestinal-digestion-method
#8
Donatella Desideri, Maria Assunta Meli, Carla Roselli, Laura Feduzi, Lucia Ugolini
The occurrence and mobility of natural radioactive element as (210)Polonium ((210)Po) in 13 commercial algae consumed in Italy by humans were determined because the effects on human health need to take into account the bioavailability of these elements. The simulation of gastrointestinal (GIT) digestion was divided into three stages and was accomplished using three different artificial solutions: saliva, gastric, and synthetic bile-pancreas solution. The same sample was treated in two different ways: a) only gastric digestion and b) complete GIT digestion (gastric digestion followed by bile-pancreas solution)...
May 22, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28527800/from-pre-to-postweaning-transformation-of-the-young-calf-s-gastrointestinal-tract
#9
Sarah J Meale, Frederique Chaucheyras-Durand, Harma Berends, Le Luo Guan, Michael A Steele
The ruminant gastrointestinal tract (GIT) faces the challenge of protecting the host from luminal contents and pathogens, while supporting the absorption and metabolism of nutrients for growth and maintenance. The GIT of the calf in early life undergoes some of the most rapid microbial and structural changes documented in nature, and these adaptations in GIT function make the young calf susceptible to GIT diseases and disorders. Despite these challenges, the calf's GIT has a certain degree of plasticity and can sense nutrient supply and respond to bioactive ingredients...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28524341/randomized-controlled-study-of-a-novel-triple-nitazoxanide-ntz-containing-therapeutic-regimen-versus-the-traditional-regimen-for-eradication-of-helicobacter-pylori-infection
#10
Mona Ah Shehata, Raghda Talaat, Samah Soliman, Huda Elmesseri, Shaimaa Soliman, Sherief Abd-Elsalam
BACKGROUND: Helicobacter pylori infection has become more and more resistant to conventional first-line treatment regimens. So, there is a considerable interest in evaluating new antibiotic combinations and regimens. Nitazoxanide is an anti-infective drug with demonstrated activity against protozoa and anaerobic bacteria including H. pylori. This work is designed to evaluate the efficacy and safety of a unique triple nitazoxanide-containing regimen as a treatment regimen in Egyptian patients with H...
May 19, 2017: Helicobacter
https://www.readbyqxmd.com/read/28514401/-differentiation-therapy-for-non-acidic-gastroesophageal-reflux-disease
#11
N B Lishchuk, V I Simanenkov, S V Tikhonov
AIM: To investigate the clinical and pathogenetic features of the non-acidic types of gastroesophageal reflux disease (GERD) and to evaluate the impact of combined therapy versus monotherapy on the course of this disease. SUBJECTS AND METHODS: The investigation enrolled 62 patients with non-acidic GERD. The follow-up period was 6 weeks. The patients were divided into 2 groups: 1) weakly acidic gastroesophageal refluxes (GER); 2) weakly alkaline GER. Then each group was distributed, thus making up 4 groups: 1) 19 patients with weakly acidic GER who received monotherapy with rabeprazole 20 mg/day; 2) 21 patients with weakly acidic GER had combined therapy with rabeprazole 20 mg and itopride; 3) 8 patients with weakly alkaline GER who received ursodeoxycholic acid (UDCA) monotherapy; and 4) 14 patients with weakly alkaline GER who had combined therapy with UDCA and itopride, The clinical symptoms of the disease, the endoscopic pattern of the upper gastrointestinal tract (GIT) mucosa, histological changes in the esophageal and gastric mucosa, and the results of 24-hour impedance pH monitoring were assessed over time...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28511402/bladder-adenocarcinoma-a-persisting-diagnostic-dilemma
#12
Geetha Vasudevan, Arijit Bishnu, Brij Mohan Kumar Singh, Deepak M Nayak, Pooja Jain
Primary urinary Bladder Adenocarcinoma (PBA) is an uncommon neoplasm and can cause diagnostic difficulties due to histologic similarities with adenocarcinomas of adjacent structures like Gastrointestinal Tract (GIT) and prostate, since involvement of the bladder by metastasis or direct spread can occur. Seven cases of bladder adenocarcinomas were diagnosed during a period of four years in a tertiary care hospital. Patient's age ranged from 26-78 years with a male predilection. Three cases were signet ring type adenocarcinomas, two cases were subtyped as enteric variant, one as mucinous variant and one as adenocarcinoma Not Otherwise Specified (NOS) variant...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28505451/toward-successful-cyclodextrin-based-solubility-enabling-formulations-for-oral-delivery-of-lipophilic-drugs-solubility-permeability-tradeoff-biorelevant-dissolution-and-the-unstirred-water-layer
#13
Noa Fine-Shamir, Avital Beig, Moran Zur, David Lindley, Jon Miller, Arik Dahan
The purpose of this work was to investigate key factors dictating the success/failure of cyclodextrin-based solubility-enabling formulations for oral delivery of low-solubility drugs. We have studied the solubility, the permeability, and the solubility-permeability interplay, of the highly lipophilic drug danazol, formulated with different levels (8.5, 10, 20 and 30%) of the commonly used hydroxypropyl-β-cyclodextrin (HPβCD), accounting for the biorelevant solubilization of the drug along the gastrointestinal tract (GIT), the unstirred water layer (UWL) adjacent to the GI membrane, and the overall absorption...
May 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28493862/fimtrack-an-open-source-tracking-and-locomotion-analysis-software-for-small-animals
#14
Benjamin Risse, Dimitri Berh, Nils Otto, Christian Klämbt, Xiaoyi Jiang
Imaging and analyzing the locomotion behavior of small animals such as Drosophila larvae or C. elegans worms has become an integral subject of biological research. In the past we have introduced FIM, a novel imaging system feasible to extract high contrast images. This system in combination with the associated tracking software FIMTrack is already used by many groups all over the world. However, so far there has not been an in-depth discussion of the technical aspects. Here we elaborate on the implementation details of FIMTrack and give an in-depth explanation of the used algorithms...
May 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28484441/molecular-demonstration-of-a-pneumocystis-outbreak-in-stem-cell-transplant-patients-evidence-for-transmission-in-the-daycare-center
#15
Christine Robin, Alexandre Alanio, Maud Gits-Muselli, Giulia la Martire, Frédéric Schlemmer, Françoise Botterel, Cécile Angebault, Mathieu Leclerc, Florence Beckerich, Rabah Redjoul, Cécile Pautas, Andrea Toma, Sébastien Maury, Stéphane Bretagne, Catherine Cordonnier
Pneumocystis jirovecii pneumonia (PCP) is a life-threatening infection in hematology. Although occasionally reported, the role of interhuman transmission of P. jirovecii in PCP, compared to that of reactivation, remains an unresolved question; the recommendation to isolate PCP patients in the hematology ward are not well evidence-based. Following an unexpected increase in the number of febrile pneumonia patients with P. jirovecii DNA detected in respiratory samples in our hematology ward, we explored 12 consecutive patients from November 2015 to May 2016...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28482838/beneficial-effects-on-host-energy-metabolism-of-short-chain-fatty-acids-and-vitamins-produced-by-commensal-and-probiotic-bacteria
#16
REVIEW
Jean Guy LeBlanc, Florian Chain, Rebeca Martín, Luis G Bermúdez-Humarán, Stéphanie Courau, Philippe Langella
The aim of this review is to summarize the effect in host energy metabolism of the production of B group vitamins and short chain fatty acids (SCFA) by commensal, food-grade and probiotic bacteria, which are also actors of the mammalian nutrition. The mechanisms of how these microbial end products, produced by these bacterial strains, act on energy metabolism will be discussed. We will show that these vitamins and SCFA producing bacteria could be used as tools to recover energy intakes by either optimizing ATP production from foods or by the fermentation of certain fibers in the gastrointestinal tract (GIT)...
May 8, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28469542/dietary-intake-of-fibers-differential-effects-in-men-and-women-on-perceived-general-health-and-immune-functioning
#17
Amanda M Fernstrand, Didi Bury, Johan Garssen, Joris C Verster
Background: It has been reported previously that dietary fiber intake provides health benefits. Nevertheless, only a limited number of human studies have investigated whether gender differences exist in the relationship between fiber intake and perceived health and immune status. Objective: To investigate potential gender differences in the effects of dietary fiber intake on perceived health and immune status of healthy young adults. Design: A survey was conducted among university students in Utrecht, the Netherlands...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28468904/host-genome-influence-on-gut-microbial-composition-and-microbial-prediction-of-complex-traits-in-pigs
#18
Amelia Camarinha-Silva, Maria Maushammer, Robin Wellmann, Marius Vital, Siegfried Preuss, Jörn Bennewitz
The aim of the present study was to analyze the interplay between gastrointestinal tract (GIT) microbiota, host genetics and complex traits in pigs using extended quantitative-genetic methods. The study design consisted of 207 pigs that were housed and slaughtered under standardized conditions and phenotyped for daily gain, feed intake and feed conversion rate. The pigs were genotyped with a standard 60K SNP chip. The GIT microbiota composition was analyzed by 16S rRNA gene amplicon sequencing technology. Eight from 49 investigated bacteria genera showed a significant narrow sense host heritability, ranging from 0...
May 3, 2017: Genetics
https://www.readbyqxmd.com/read/28464793/icover-an-interactive-visualization-tool-for-verification-and-refinement-of-metagenomic-bins
#19
Bertjan Broeksema, Magdalena Calusinska, Fintan McGee, Klaas Winter, Francesco Bongiovanni, Xavier Goux, Paul Wilmes, Philippe Delfosse, Mohammad Ghoniem
BACKGROUND: Recent advances in high-throughput sequencing allow for much deeper exploitation of natural and engineered microbial communities, and to unravel so-called "microbial dark matter" (microbes that until now have evaded cultivation). Metagenomic analyses result in a large number of genomic fragments (contigs) that need to be grouped (binned) in order to reconstruct draft microbial genomes. While several contig binning algorithms have been developed in the past 2 years, they often lack consensus...
May 2, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28460931/bioaccessibility-and-antioxidant-activity-of-curcumin-after-encapsulated-by-nano-and-pickering-emulsion-based-on-chitosan-tripolyphosphate-nanoparticles
#20
Bakht Ramin Shah, Chunlan Zhang, Yan Li, Bin Li
In the current study the influence of different lipid-based formulations (Pickering and nanoemulsions) and their droplet size on curcumin encapsulation and bioaccessibility, as well as on its anti-oxidant activity was investigated. Oil-in-water Pickering emulsion stabilized by chitosan-tripolyphosphate (CS-TPP) nanoparticles and nanoemulsions containing an organic phase (Span80:Tween80), were prepared with either medium chain triglyceride (MCT) or corn oil as long chain triglyceride (LCT). An in vitro gastrointestinal (GIT) model consisting of mouth, gastric and intestinal phases was used to characterize the rate and extent of lipid phase digestion of the ingested samples...
November 2016: Food Research International
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