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https://www.readbyqxmd.com/read/28435976/-role-of-igg-plasma-cells-in-the-change-of-protein-c-system-in-ulcerative-colitis
#1
Xu-Hong Lin, Jun-Ling Guo, Yu-Qing Wen, Yu-Xia Li, Dan-Dan Wei, Rui-Lin Yang, Xiao-Yun Mu, Hui-Chao Wang
The present study is designed to explore the role of plasma cells in the change of protein C system (PCS) in ulcerative colitis (UC). Dextran sulfate sodium (DSS, 4% in concentration) was used to induce mouse UC model. The plasma cells and the type of immune complex in colon were observed by immunofluorescence. The amount and type of plasma cells separated from colonic mucosal lamina propria were detected by flow cytometry using anti-CD54(+)CD38(+) and IgA/M/G antibodies, respectively. After stimulation of macrophages by IgG type immune complex, TNF-α and IL-6 levels were evaluated by ELISA...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435946/faraday-discussions-meeting-catalysis-for-fuels
#2
Nico Fischer, Simon A Kondrat, Mzamo Shozi
Welcome to Africa was the motto when after more than 100 years the flag ship conference series of the Royal Society of Chemistry, the Faraday Discussions was hosted for the first time on the African Continent. Under the fitting topic 'Catalysis for Fuels' over 120 delegates followed the invitation by the conference chair Prof. Graham Hutchings FRS (Cardiff Catalysis Institute), his organizing committee and the co-organizing DST-NRF Centre of Excellence in Catalysis c*change (). In the presentations of 21 invited speakers and 59 posters, cutting edge research in the field of catalysis for fuels, designing new catalysts for synthetic fuels, hydrocarbon conversion in the production of synthetic fuels and novel photocatalysis was presented over the two-day meeting...
April 24, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28435620/the-effect-of-resin-cement-type-and-cleaning-method-on-the-shear-bond-strength-of-resin-cements-for-recementing-restorations
#3
Roodabeh Koodaryan, Ali Hafezeqoran, Amin Khakpour Maleki
PURPOSE: This laboratory study assessed the effect of different dentin cleaning procedures on shear bond strength of resin cements for recementing prosthesis. MATERIALS AND METHODS: 4 × 4 flat surface was prepared on the labial surface of 52 maxillary central incisors. Metal frames (4 × 4 × 1.5 mm) were cast with nickel-chromium alloy. All specimens were randomly divided into 2 groups to be cemented with either Panavia F2.0 (P) or RelyX Ultimate (U) cement. The initial shear bond strength was recorded by Universal Testing Machine at a crosshead speed of 0...
April 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28433535/bioimaging-and-biodetection-assisted-with-tta-uc-materials
#4
REVIEW
Qingqing Dou, Lu Jiang, Dan Kai, Cally Owh, Xian Jun Loh
Upconversion of light has attracted intensive studies for biomedical research, because it enables deeper [SB1] tissue analysis owing to the longer wavelength of incident light, compared with conventional downconversion fluorescent materials. Triplet-triplet annihilation (TTA), as a typical mechanism of upconversion, does not necessitate high power excitation and exhibits a higher quantum yield than rare earth upconversion owing to more sensitizer options with higher absorption coefficients. A desirable wavelength range of excitation and emission can be realized by careful selection of the combination of sensitizer and activator...
April 19, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28432572/micropapillary-bladder-cancer-a-clinico-pathological-characterization-and-treatment-analysis
#5
Z Li, H Liao, Z Tan, D Mao, Y Wu, Y M Xiao, S K Yang, L Zhong
PURPOSE: Micropapillary bladder cancer (MPBC) is a very rare and aggressive variant of urothelial carcinoma (UC). The aim of this study was to investigate the clinico-pathological characteristics, treatment, and prognosis of MPBC to improve the understanding of this invasive disease. METHODS: We reviewed the records of 6 patients with MPBC who were evaluated and treated at our hospital between 2009 and 2015, and additionally reviewed 38 cases reported in the literature...
April 21, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28432449/enteroparasitoses-and-toxocarosis-affecting-children-from-mar-del-plata-city-argentina
#6
Carla Lavallén, Beatriz Brignani, Karina Riesgo, Amalia Rojas, Gabriela Colace, Martín Biscaychipi, Estela Chicote, Cristian Giuntini, Mariela Kifer, María Eugenia Del Río, Guillermo Denegri, Marcela Dopchiz
This study evaluated the existence of enteroparasitoses and toxocarosis in children of peripheral (PC) and urban communities (UC) from Mar del Plata city (Argentina) and their associations with socio-environmental conditions. A Parasite Vulnerability Index (PVI) was elaborated using variables such as overcrowding, floor type, drinking water source, wastewater disposal, solid waste disposal, presence of animals and schooling level. The PC evidenced statistically significant higher frequencies of families with high (38...
April 21, 2017: EcoHealth
https://www.readbyqxmd.com/read/28432343/cox-1-pge2-ep4-alleviates-mucosal-injury-by-upregulating-%C3%AE-arr1-mediated-akt-signaling-in-colitis
#7
Xiaojie Peng, Jianzhong Li, Siwei Tan, Minyi Xu, Jin Tao, Jie Jiang, Huiling Liu, Bin Wu
COX-1/PGE2 is an important protective mediator in ulcerative colitis (UC). β-arrestin1 (β-arr1), which acts as a scaffold protein, is involved in PGE2-mediated signaling pathways. However, the interaction between PGE2 and β-arr1 in maintaining mucosal barrier integrity remains unexplored. In this study, we demonstrated that COX-1 and PGE2 were significantly decreased, and EP4 mRNA was downregulated in both UC patients and mice during the injury phase. PGE2 treatment was found to alleviate mucosal injury and induce EP4 expression during dextran sulfate sodium (DSS)-induced colitis in wild-type (WT) mice...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28430891/development-and-validation-of-diagnostic-criteria-for-ibd-subtypes-with-an-emphasis-on-ibd-unclassified-in-children-a-multicenter-study-from-the-pediatric-ibd-porto-group-of-espghan
#8
Liron Birimberg-Schwartz, David M Zucker, Amichay Akriv, Salvatore Cucchiara, Fiona L Cameron, David C Wilson, Iza Lazowska, Lambri Yianni, Siba Prosad Paul, Claudio Romano, Sanja Kolacek, Stephan Buderus, Anders Pærregaard, Richard K Russell, Johanna C Escher, Dan Turner
Background: The revised Porto criteria identify subtypes of pediatric inflammatory bowel diseases: ulcerative colitis (UC), atypical UC, Inflammatory Bowel Disease Unclassified (IBDU), and Crohn's disease (CD). In continuation of the Porto criteria, we aimed to derive and validate criteria for standardizing the classification of the IBD subtypes. Methods: This was a multicenter retrospective longitudinal study from 23 centers affiliated with the Porto-group of ESPGHAN...
April 18, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28430884/a-20-year-temporal-change-analysis-in-incidence-presenting-phenotype-and-mortality-in-the-dutch-ibdsl-cohort-can-diagnostic-factors-explain-the-increase-in-ibd-incidence
#9
Tim R A van den Heuvel, Steven F G Jeuring, Maurice P Zeegers, Dorien H E van Dongen, Anouk Wolters, Ad A M Masclee, Wim H Hameeteman, Marielle J L Romberg-Camps, Liekele E Oostenbrug, Marieke J Pierik, Daisy M Jonkers
Background: The aim was to study temporal changes in incidence, disease phenotype at diagnosis, and mortality of adult inflammatory bowel disease (IBD) patients in South Limburg, the Netherlands, diagnosed between 1991 and 2010. In addition, the 2010 IBD prevalence was estimated. Methods: A multi-faceted approach including hospital administrations, the national pathology registry, and general practitioners led to the identification of 1162 patients with Crohn's disease (CD), 1663 with ulcerative colitis (UC) and 84 with unclassified IBD (IBD-U)...
April 20, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28430799/diagnostic-and-prognostic-value-of-long-noncoding-rnas-as-biomarkers-in-urothelial-carcinoma
#10
Johanna Droop, Tibor Szarvas, Wolfgang A Schulz, Christian Niedworok, Günter Niegisch, Kathrin Scheckenbach, Michèle J Hoffmann
Many long noncoding RNAs (lncRNAs) are deregulated in cancer and contribute to oncogenesis. In urothelial carcinoma (UC), several lncRNAs have been reported to be overexpressed and proposed as biomarkers. As most reports have not been confirmed independently in large tissue sets, we aimed to validate the diagnostic and prognostic value of lncRNA upregulation in independent cohorts of UC patients. Thus, expression of seven lncRNA candidates (GAS5, H19, linc-UBC1, MALAT1, ncRAN, TUG1, UCA1) was measured by RT-qPCR in cell lines and tissues and correlated to clinicopathological parameters including follow-up data (set 1: N n = 10; T n = 106)...
2017: PloS One
https://www.readbyqxmd.com/read/28428105/microcarcinoid-arising-in-patients-with-long-standing-ulcerative-colitis-histological-analysis
#11
Sachie Kanada, Akira Sugita, Tetuo Mikami, Kenichi Ohashi, Hiroyuki Hayashi
Some case reports of neuroendocrine tumors (NETs) and neuroendocrine carcinoma (NEC) associated with ulcerative colitis (UC) have been published. Most NET cases are small lesions corresponding to microcarcinoids (MCs). However, published case reports have presented findings of MCs as single-case reports. Thus, the frequency of MCs is still unclear. In this study, we described the clinical and morphological features of 14 cases of UC-associated MC and estimated the frequency of MC. Consecutive patients with UC who underwent complete removal of the large intestine were assessed, and 135 patients were selected...
April 17, 2017: Human Pathology
https://www.readbyqxmd.com/read/28428053/discrimination-between-ulcerative-colitis-and-crohn-s-disease-using-phage-display-identified-peptides-and-virus-mimicking-synthetic-nanoparticles
#12
Sonia Facchin, Liboria Digiglio, Renata D'Incà, Elisabetta Casarin, Elisa Dassie, Monica Dettin, Annj Zamuner, Andrea Buda, Michele De Boni, Duilio Della Libera, Alessandra D'Urso, Giacomo Carlo Sturniolo, Margherita Morpurgo
Discrimination between Crohn Disease (CD) and Ulcerative Colitis (UC) is an unsolved clinical issue in up to 10-15% of inflammatory bowel disease (IBD) patients. We developed a method capable to discriminate between the two clinical conditions by combining random peptide phage display screenings and nanoparticle (NP) based assays. We identified two peptides able to recognize selectively biopsies of inflamed mucosa of either CD or UC patients. The peptides were integrated into synthetic virus-mimicking nanoassemblies using a poly-avidin NP platform...
April 17, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28427232/embryonic-signature-distinguishes-pediatric-and-adult-rhabdoid-tumors-from-other-smarcb1-deficient-cancers
#13
Wilfrid Richer, Julien Masliah-Planchon, Nathalie Clement, Irene Jimenez, Laetitia Maillot, David Gentien, Benoît Albaud, Walid Chemlali, Christine Galant, Frederique Larousserie, Pascaline Boudou-Rouquette, Amaury Leruste, Celine Chauvin, Zhi Yan Han, Jean-Michel Coindre, Pascale Varlet, Paul Freneaux, Dominique Ranchère-Vince, Olivier Delattre, Franck Bourdeaut
Extra-cranial rhabdoid tumors (RT) are highly aggressive malignancies of infancy, characterized by undifferentiated histological features and loss of SMARCB1 expression. The diagnosis is all the more challenging that other poorly differentiated cancers lose SMARCB1 expression, such as epithelioid sarcomas (ES), renal medullary carcinomas (RMC) or undifferentiated chordomas (UC). Moreover, late cases occurring in adults are now increasingly reported, raising the question of differential diagnoses and emphasizing nosological issues...
March 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427201/wnt5a-planar-cell-polarity-signaling-pathway-in-urothelial-carcinoma-a-potential-prognostic-biomarker
#14
Mark Saling, Jordan K Duckett, Ian Ackers, Karen Coschigano, Scott Jenkinson, Ramiro Malgor
Bladder cancer is the fourth most common cancer in men and the most common malignancy of the urinary tract. Bladder cancers detected at an early stage have a very high five-year survival rate, but when detected after local metastasis the rate is only about 50%. Our group recently reported a positive correlation between the expression of Wnt5a, a member of the Wnt proteins family, and histopathological grade and stage of urothelial carcinoma (UC). The objective of this study was to analyze UC cases reported in Athens, Ohio and investigate the major components of Wnt5a / planar cell polarity (PCP) signaling pathway in UC human tissue samples and UC cell lines...
March 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426675/indicators-of-suboptimal-biologic-therapy-over-time-in-patients-with-ulcerative-colitis-and-crohn-s-disease-in-the-united-states
#15
Haridarshan Patel, Trevor Lissoos, David T Rubin
This study assessed the occurrence of indicators for suboptimal biologic therapy among ulcerative colitis (UC) and Crohn's disease (CD) patients over time in the United States (US). Data from a large US claims database (2005-2013) were used to retrospectively identify patients with diagnosed with either UC or CD who were new biologic users. Indicators of suboptimal biologic therapy included: dose escalation during the maintenance phase, discontinuation of the initial biologic, switch to another biologic within 90 days following the last day of supply of the initial biologic, augmentation with a non-biologic systemic therapy, UC- or CD-related surgery, UC- or CD-related urgent care, and development of fistula (for CD only)...
2017: PloS One
https://www.readbyqxmd.com/read/28426459/the-association-between-cmv-viremia-or-endoscopic-features-and-histopathological-characteristics-of-cmv-colitis-in-patients-with-underlying-ulcerative-colitis
#16
Hong Yang, Weixun Zhou, Hong Lv, Dongsheng Wu, Yunlu Feng, Huijun Shu, Meng Jin, Lingling Hu, Qiang Wang, Dong Wu, Jie Chen, Jiaming Qian
BACKGROUND: Cytomegalovirus (CMV) infection has been shown to be related to severe or steroid-refractory ulcerative colitis (UC) flare-ups. The aim of this study was to evaluate the endoscopic and pathological characteristics of CMV colitis in patients with UC and to assess the predictive value of the endoscopic and pathological features of CMV colitis. METHODS: A total of 50 consecutive UC patients with CMV infection who were admitted to Peking Union Medical College Hospital from 2010 to 2015 were enrolled in this study...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28426456/expression-and-localization-of-mir-21-and-mir-126-in-mucosal-tissue-from-patients-with-inflammatory-bowel-disease
#17
Gorm Thorlacius-Ussing, Boye Schnack Nielsen, Vibeke Andersen, Kim Holmstrøm, Anders E Pedersen
BACKGROUND: microRNAs (miRNAs) are small noncoding RNAs that guide degradation of mRNA and regulate protein expression. miRNA based diagnostic biomarkers for ulcerative colitis (UC) and Crohn's disease (CD) are emerging but information about the cellular localization of many miRNAs is limited and more detailed histologic evaluation of miRNA expression patterns is needed to understand their immunobiological function. METHODS: Formalin-fixed paraffin-embedded colon biopsies from 10 patients with UC and 8 patients with CD together with 9 controls were examined by RT-qPCR and quantitative in situ hybridization (ISH)...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28426451/quality-of-care-and-outcomes-among-hospitalized-inflammatory-bowel-disease-patients-a-multicenter-retrospective-study
#18
Geoffrey C Nguyen, Sanjay K Murthy, Brian Bressler, Mindy C W Lam, Ali Alali, Asmae Toumi, Jason Reinglas, Adam Rampersad, Adam V Weizman, Waqqas Afif
BACKGROUND: Half of patients with inflammatory bowel disease (IBD) require hospitalization. We sought to characterize inpatient quality indicators of care and outcomes during IBD-related hospitalizations at 4 major IBD referral centers in Canada. METHODS: We conducted a multicenter retrospective cohort study of patients with IBD admitted from 2011 to 2013 to tertiary centers in Toronto, Montreal, Ottawa, and Vancouver. We assessed the following inpatient indicators of care: pharmacological venous thromboembolism (VTE) prophylaxis, Clostridium difficile testing, and medical rescue therapy for steroid-refractory ulcerative colitis (UC)...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28425825/reviewing-treatments-and-outcomes-in-the-evolving-landscape-of-ulcerative-colitis
#19
Marla C Dubinsky
Ulcerative colitis (UC) is a chronic inflammatory disease extending proximally from the rectum to varying lengths of the colon that is characterized by alternating cycles of relapse and remission. Therapeutic goals for patients with active UC include induction and maintenance of remission and improvement in quality of life, as well as mucosal healing, a clinical outcome recently recognized in treatment guidance as being equally important. Mucosal healing is associated with favorable long-term patient outcomes related to remission, surgery, hospitalization, and quality of life...
April 20, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28425118/engaging-conceptions-of-identity-in-a-context-of-medical-pluralism-explaining-treatment-choices-for-everyday-illness-in-niger
#20
Kelley Sams
This article uses ethnographic research to reflect upon how the treatment of 'everyday' illnesses in Niger engages concepts of social identity. Inspired by Bourdieu's concept of social distinction, as well as Appadurai's edited volume on the 'social lives' of 'things', I present an analysis of how medications are understood by their users in terms of social and ideological meaning in one rural Hausa village. Decisions about medication choice were framed by three main themes: belonging to the 'modern' world, 'traditional' Hausa culture, and religious identity...
April 20, 2017: Sociology of Health & Illness
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