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https://www.readbyqxmd.com/read/28794055/effect-of-vaccine-elicited-antibodies-on-colonization-of-neisseria-meningitidis-serogroup-b-and-c-strains-in-a-human-bronchial-epithelial-cell-culture-model
#1
Vianca Vianzon, Beate Illek, Gregory R Moe
Capsular polysaccharide-protein conjugate vaccines protect individuals from invasive disease and decrease carriage, which reduces spread of the organism in the population. In contrast, antibodies elicited by plain polysaccharide or protein antigen-based meningococcal (Men) vaccines have little or no effect on decreasing carriage. In this study, we investigated the mechanism by which vaccine-induced human IgG antibodies affect colonization by serogroup B (MenB) or C (MenC) strains using a human bronchial epithelial cell culture model (16HBE14o-)...
August 9, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28782240/electrophoretic-deposition-of-mgo-nanoparticles-imparts-antibacterial-properties-to-poly-l-lactic-acid-for-orthopedic-applications
#2
Daniel J Hickey, Divya Muthusamy, Thomas J Webster
Bacterial infection of implanted biomaterials is a serious problem that increases health care costs and negatively affects a considerable fraction of orthopedic procedures. In this field, magnesium oxide nanoparticles (MgO NPs) have emerged as a promising material to combat bacterial infection while maintaining or improving bone cell functions. Here, MgO NPs were electrophoretically deposited onto poly-L-lactic acid (PLLA) sheets to achieve a coating of highly exposed MgO NPs that directly influenced cell-substrate interactions at short time scales...
August 7, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28764983/targeted-delivery-of-probiotics-to-enhance-gastrointestinal-stability-and-intestinal-colonisation
#3
Cornelius C Dodoo, Jie Wang, Abdul W Basit, Paul Stapleton, Simon Gaisford
The aim of this work was to assess the viability of some commercial probiotics after exposure to gastric acid and the possibility of modifying these formulations for delivery into the distal parts of the intestines. Gastrointestinal tolerance testing was conducted for three commercial probiotics and an in-house freeze-dried Lactobacillus acidophilus strain. The contents of the commercial products and the in-house freeze-dried strain were then loaded into capsules for site-specific delivery into the colon using the Phloral(®) coating technology; the viability upon release was then ascertained...
July 29, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28742161/abundance-and-co-occurrence-of-extracellular-capsules-increase-environmental-breadth-implications-for-the-emergence-of-pathogens
#4
Olaya Rendueles, Marc Garcia-Garcerà, Bertrand Néron, Marie Touchon, Eduardo P C Rocha
Extracellular capsules constitute the outermost layer of many bacteria, are major virulence factors, and affect antimicrobial therapies. They have been used as epidemiological markers and recently became vaccination targets. Despite the efforts to biochemically serotype capsules in a few model pathogens, little is known of their taxonomic and environmental distribution. We developed, validated, and made available a computational tool, CapsuleFinder, to identify capsules in genomes. The analysis of over 2500 prokaryotic genomes, accessible in a database, revealed that ca...
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28729207/first-two-cases-of-severe-multifocal-infections-caused-by-klebsiella-pneumoniae-in-switzerland-characterization-of-an-atypical-non-k1-k2-serotype-strain-causing-liver-abscess-and-endocarditis
#5
Baharak Babouee Flury, Valentina Donà, Niccolò Buetti, Hansjakob Furrer, Andrea Endimiani
BACKGROUND: We describe the first two multifocal invasive infections due to Klebsiella pneumoniae recently observed in Switzerland. METHODS: Phenotypic (MIC assays and string test) and molecular analyses (PCR/Sequencing for bla, virulence factor genes and whole genome sequencing for one strain) were performed to characterize the causative K. pneumoniae isolates. RESULTS: Both K. pneumoniae isolates (Kp1 and Kp2) were pan-susceptible to antibiotics and produced narrow-spectrum SHV β-lactamases...
July 17, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28720847/the-glycointeractome-of-serogroup-b-neisseria-meningitidis-strain-mc58
#6
Tsitsi D Mubaiwa, Lauren E Hartley-Tassell, Evgeny A Semchenko, Freda E-C Jen, Yogitha N Srikhanta, Christopher J Day, Michael P Jennings, Kate L Seib
Neisseria meningitidis express numerous virulence factors that enable it to interact with diverse microenvironments within the host, during both asymptomatic nasopharyngeal colonization and invasive disease. Many of these interactions involve bacterial or host glycans. In order to characterise the meningococcal glycointeractome, glycan arrays representative of structures found on human cells, were used as a screening tool to investigate host glycans bound by N. meningitidis. Arrays probed with fluorescently labelled wild-type MC58 revealed binding to 223 glycans, including blood group antigens, mucins, gangliosides and glycosaminoglycans...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713062/a-prospective-study-on-second-generation-colon-capsule-endoscopy-to-detect-mucosal-lesions-and-disease-activity-in-ulcerative-colitis-with-video
#7
Hai Yun Shi, Francis Kl Chan, Akira Higashimori, Moe Kyaw, Jessica Yl Ching, Heyson Ch Chan, Joey Ch Chan, Anthony Wh Chan, Kelvin Ly Lam, Raymond Sy Tang, Justin Cy Wu, Joseph Jy Sung, Siew C Ng
BACKGROUND & AIMS: Mucosal healing is the goal for ulcerative colitis (UC) therapy, but needs to be confirmed under colonoscopy. Colon capsule endoscopy (CCE) is a noninvasive technique for colon investigation. Our study investigated the accuracy of the second-generation CCE (CCE-2) to assess mucosal lesions and disease activity in UC. METHODS: In this prospective study, CCE-2 and conventional colonoscopy were performed on the same day. CCE-2 reviewers and colonoscopists used Mayo endoscopic subscore (MES) and Ulcerative Colitis Endoscopic Index of Severity (UCEIS) to assess disease activity, and were blinded to each other's findings...
July 13, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28688203/assessment-of-colorectal-length-using-the-electromagnetic-capsule-tracking-system-a-comparative-validation-study-in-healthy-subjects
#8
E B Mark, J L Poulsen, A M Haase, J B Frøkjaer, V Schlageter, S M Scott, K Krogh, A M Drewes
AIM: We aimed to determine colorectal length with the 3D-Transit system by describing a 'centerline' of capsule movement and compare it to known anatomy, as determined by magnetic resonance imaging (MRI). Further, we aimed to test the day-to-day variation of colorectal length assessed with the system. METHOD: The 3D-Transit system consists of electromagnetic capsules that can be tracked as they traverse the gastrointestinal tract. 25 healthy subjects were examined with both 3D-Transit and MRI...
July 8, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28676999/gastrointestinal-tract-complications-after-hepatic-radiofrequency-ablation-ct-prediction-for-major-complications
#9
Yun Soo Jeong, Se Hyung Kim, Jeong Min Lee, Jae Young Lee, Jung Hoon Kim, Dong Ho Lee, Hyo-Jin Kang, Chang Jin Yoon, Joon Koo Han
PURPOSE: To analyze CT features that predict major gastrointestinal tract (GIT) complication after hepatic radiofrequency ablation (RFA). MATERIALS AND METHODS: Of 3933 patients who underwent RFA for hepatic malignancy from January 2005 to September 2016, 52 patients (1.32%) who had GIT complications were retrospectively enrolled. Electronic medical records and CT results were reviewed for location (left vs. right lobe, subcapsular vs. non-subcapsular) and tumor size, distance from the hepatic capsule, number and length of needles, ablation time, presence of artificial ascites, previous history of percutaneous treatment or operation, injured organs, length and thickness of injured GIT, presence of adjacent infiltration, ascites, mucosal discontinuity, and free air, and eccentricity...
July 4, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28670889/heuristic-classifier-for-observe-accuracy-of-cancer-polyp-using-video-capsule-endoscopy
#10
Geetha K, Rajan C
Methods: Colonoscopy is a technique for examine colon cancer, polyps. In endoscopy, video capsule is universally used mechanism for finding gastrointestinal stages. But both the mechanisms are used to find the colon cancer or colorectal polyp. The Automatic Polyp Detection sub-challenge conducted as part of the Endoscopic Vision Challenge (http://endovis.grand-challenge.org). Method: Colonoscopy may be primary way of improve the ability of colon cancer detection especially flat lesions. Which otherwise may be difficult to detect...
June 25, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28658258/genome-scale-analysis-of-the-genes-that-contribute-to-burkholderia-pseudomallei-biofilm-formation-identifies-a-crucial-exopolysaccharide-biosynthesis-gene-cluster
#11
Grace I Borlee, Brooke A Plumley, Kevin H Martin, Nawarat Somprasong, Mihnea R Mangalea, M Nurul Islam, Mary N Burtnick, Paul J Brett, Ivo Steinmetz, David P AuCoin, John T Belisle, Dean C Crick, Herbert P Schweizer, Bradley R Borlee
Burkholderia pseudomallei, the causative agent of melioidosis, is an important public health threat due to limited therapeutic options for treatment. Efforts to improve therapeutics for B. pseudomallei infections are dependent on the need to understand the role of B. pseudomallei biofilm formation and its contribution to antibiotic tolerance and persistence as these are bacterial traits that prevent effective therapy. In order to reveal the genes that regulate and/or contribute to B. pseudomallei 1026b biofilm formation, we screened a sequence defined two-allele transposon library and identified 118 transposon insertion mutants that were deficient in biofilm formation...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28637806/the-pneumococcal-serotype-15c-capsule-is-partially-o-acetylated-and-allows-for-limited-evasion-of-ppv23-elicited-anti-serotype-15b-antibodies
#12
Brady L Spencer, Anukul T Shenoy, Carlos J Orihuela, Moon H Nahm
As a species, Streptococcus pneumoniae (the pneumococcus) utilizes a diverse array of capsular polysaccharides to evade the host. In contrast to large variations in sugar composition and linkage formation, O-acetylation is a subtle capsular modification that nonetheless has a large impact on capsular shielding and recognition of the capsule by vaccine-elicited antibodies. Serotype 15B, which is included in the 23-valent pneumococcal polysaccharide vaccine (PPV23), encodes the putative O-acetyltransferase gene wciZ...
June 21, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28596986/international-core-curriculum-for-capsule-endoscopy-training-courses
#13
Ignacio Fernandez-Urien, Simon Panter, Cristina Carretero, Carolyn Davison, Xavier Dray, Evgeny Fedorov, Richard Makins, Miguel Mascarenhas, Mark McAlindon, Deirdre McNamara, Hansa Palmer, Jean Francoise Rey, Jean Christophe Saurin, Uwe Seitz, Cristiano Spada, Ervin Toth, Felix Wiedbrauck, Martin Keuchel
Capsule endoscopy (CE) has become a first-line noninvasive tool for visualisation of the small bowel (SB) and is being increasingly used for investigation of the colon. The European Society of Gastrointestinal Endoscopy (ESGE) guidelines have specified requirements for the clinical applications of CE. However, there are no standardized recommendations yet for CE training courses in Europe. The following suggestions in this curriculum are based on the experience of European CE training courses directors. It is suggested that 12 hours be dedicated for either a small bowel capsule endoscopy (SBCE) or a colon capsule endoscopy (CCE) course with 4 hours for an introductory CCE course delivered in conjunction with SBCE courses...
June 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28593783/colonic-lesions-in-patients-undergoing-small-bowel-capsule-endoscopy-incidence-diagnostic-and-therapeutic-impact
#14
José Francisco Juanmartiñena Fernández, Iñaki Fernández-Urién Sainz, Beatriz Zabalza Ollo, Ana Borda Martín, Juan José Vila Costas
BACKGROUND: Nowadays, capsule endoscopy is the first-line procedure to assess the small bowel. During small bowel procedures, other segments of the gastrointestinal tract may be visualized. The aim of the current study was to evaluate the incidence of colonic abnormalities in patients undergoing small bowel capsule and its impact on patient management. PATIENTS AND METHODS: This study is a retrospective analysis of data from 526 consecutive capsule endoscopy procedures performed at a single tertiary-care centre between 2008 and 2011...
June 8, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28576124/ancylostoma-ailuropodae-n-sp-nematoda-ancylostomatidae-a-new-hookworm-parasite-isolated-from-wild-giant-pandas-in-southwest-china
#15
Yue Xie, Eric P Hoberg, Zijiang Yang, Joseph F Urban, Guangyou Yang
BACKGROUND: Hookworms belonging to the genus Ancylostoma (Dubini, 1843) cause ancylostomiasis, a disease of considerable concern in humans and domestic and wild animals. Molecular and epidemiological data support evidence for the zoonotic potential among species of Ancylostoma where transmission to humans is facilitated by rapid urbanization and increased human-wildlife interactions. It is important to assess and describe these potential zoonotic parasite species in wildlife, especially in hosts that have physiological similarities to humans and share their habitat...
June 2, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28571122/detecting-the-non-physiological-surgically-tailored-ileocolic-anastomosis-using-the-wireless-motility-capsule-a-pre-and-post-operative-prospective-within-subject-trial
#16
Yngve Thorsen, Bojan V Stimec, Jens M Nesgaard, Dejan Ignjatovic
Background/Aims: Wireless motility capsule (WMC) detects the ileocolic junction (ICJ) in most non-operated patients. We find no data concerning this examination in patients where the ileocolic valve is replaced by a per definition incompetent, surgically created ICJ. We wanted to see if WMC could detect the ICJ after a right colectomy and assess the competency. Methods: Prospective cohort study using a within-subject design to eliminate subject-subject variability...
June 1, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28567382/where-do-i-see-minimally-invasive-endoscopy-in-2020-clock-is-ticking
#17
REVIEW
Rami Eliakim
Since it was introduced 17 years ago, capsule endoscopy has become an important diagnostic tool for the small bowel. Three generations of the original small bowel capsule have been developed since (PillCam SB3, Medtronic, USA), and four competitors were introduced for the small bowel. A non-video patency capsule (Agile patency capsule, Medtronic, USA) was also developed, in order to confirm patency and thus avoid retention in the GI tract. Moreover, capsules viewing other organs of the body (esophagus, colon) as well as three different magnetic guided capsules that visualize the stomach as good as optical endoscopy (OE) have been developed...
May 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28567379/colonic-obstruction-caused-by-video-capsule-entrapment-in-a-metal-stent
#18
Ervin Toth, Lars Marthinsen, Maria Bergström, Per-Ola Park, Peter Månsson, Artur Nemeth, Gabriele Wurm Johansson, Henrik Thorlacius
Video capsule endoscopy (VCE) has become the method of choice for visualizing the small bowel mucosa and is generally considered to be a safe method. Although uncommon, the most feared complication of VCE is capsule retention that can potentially lead to life-threatening bowel obstruction. Herein, we present for the first time a case of capsule retention in a colonic stent. The patient had known Crohn's disease with colonic involvement and underwent an uneventful but incomplete small bowel VCE for assessment of disease activity and extension for optimizing medical treatment...
May 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28567375/video-capsule-colonoscopy-in-routine-clinical-practice
#19
Ervin Toth, Diana E Yung, Artur Nemeth, Gabriele Wurm Johansson, Henrik Thorlacius, Anastasios Koulaouzidis
BACKGROUND: Colon capsule endoscopy (CCE) offers direct mucosal visualisation without sedation or gas insufflation required in conventional colonoscopy (CC). However, evidence for the role of CCE as an adjunct or alternative to CC remains equivocal. In this observational cohort study, we report our experience of using CCE to investigate patients with suspected colon pathology at a tertiary referral centre. METHODS: From 2007-2015, consecutive patients requiring colonoscopy were recruited from a tertiary care centre in Malmo, Sweden...
May 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28554656/colon-capsule-endoscopy-to-screen-for-colorectal-neoplasia-in%C3%A2-those-with-family-histories-of-colorectal-cancer
#20
Andrea Parodi, Geoffroy Vanbiervliet, Cesare Hassan, Xavier Hebuterne, Antonella De Ceglie, Rosa Angela Filiberti, Cristano Spada, Massimo Conio
BACKGROUND AND AIMS: Colon capsule endoscopy (CCE) has been recognized as an alternative for colorectal cancer (CRC) screening in average-risk people. Our aim was to prospectively assess the accuracy of CCE as a screening tool in first-degree relatives (FDRs) of people with CRC by using optical colonoscopy (OC) with segmental unblinding as the reference standard. METHODS: Consecutive patients admitted with a CRC diagnosis (index cases) were prospectively evaluated and invited to contact their FDRs...
May 26, 2017: Gastrointestinal Endoscopy
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