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https://www.readbyqxmd.com/read/28545100/intranasal-delivery-of-a-bivalent-norovirus-vaccine-formulated-in-an-in-situ-gelling-dry-powder
#1
Jordan P Ball, Michael J Springer, Yawei Ni, Isaac Finger-Baker, Juan Martinez, Jessica Hahn, John F Suber, Ashley V DiMarco, James D Talton, Ronald R Cobb
The global health community is beginning to understand the burden of norovirus-associated disease, which has a significant impact in both developed and developing countries. Norovirus virus like particle (VLP)-based vaccines are currently under development and have been shown to elicit systemic and mucosal immune responses when delivered intranasally. In the present study, we describe the use of a dry powder formulation (GelVac™) with an in situ gelling polysaccharide (GelSite™) extracted from Aloe vera for nasal delivery of a bivalent vaccine formulation containing both GI and GII...
2017: PloS One
https://www.readbyqxmd.com/read/28544386/skin-mucous-membrane-disorder-and-therapeutic-effect-of-pegylated-liposomal-doxorubicin-in-recurrent-ovarian-cancer
#2
Yuki Yamada, Ryuji Kawaguchi, Fuminori Ito, Kana Iwai, Emiko Niiro, Hiroshi Shigetomi, Yasuhito Tanase, Hiroshi Kobayashi
AIM: Hand-foot syndrome (HFS) induced by chemotherapy and molecule-targeting drugs is correlated with treatment efficacy. We conducted a retrospective analysis to evaluate the relationship between HFS and efficacy of pegylated liposomal doxorubicin (PLD) for recurrent ovarian cancer. METHODS: Patients were treated with PLD between July 2009 and May 2014. We evaluated patient characteristics, incidence of adverse events, clinical benefit (rate of complete response, partial response, and stable disease), progression-free survival, and overall survival...
May 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28544328/acetylcholine-related-proteins-in-non-neoplastic-appearing-colonic-mucosa-from-patients-with-colorectal-neoplasia
#3
Morten Matthiesen Bach Damm, Thorbjørn Søren Rønn Jensen, Badar Mahmood, Morten Lundh, Steen Seier Poulsen, Niels Bindslev, Mark Berner Hansen
The pathogenesis of colorectal neoplasia (CRN) has been associated with altered non-neuronal acetylcholine (ACh) metabolism. The aim of this study was to characterize expression, function and cellular location of ACh-related proteins in biopsies obtained from endoscopic normal appearing sigmoid colon in patients with and without CRN. Messenger-RNA (mRNA) levels of 17 ACh-related proteins were quantified by rt-qPCR. Functional responses to ACh, measured as electrogenic transepithelial short circuit current (SCC), were recorded using the Ussing chamber technique...
May 23, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28543959/epidemiology-of-urothelial-carcinoma
#4
REVIEW
Jun Miyazaki, Hiroyuki Nishiyama
The epithelium lining is defined as the mucosal surfaces of the renal collecting tubules, calyces and pelvis, as well as the ureter, bladder and urethra. The term "urothelium" is used to refer to these surfaces. Upper tract urothelial carcinoma is a rare subset of urothelial cancers with a poor prognosis. Urinary bladder cancer is the most common malignancy involving the urinary system. Upper tract urothelial carcinoma is more common in men than in women, with a male-to-female ratio of 2:1. The incidence of urinary bladder cancer is also higher in men...
May 21, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28543852/cutaneous-granular-cell-tumors-in-children-case-series-and-review-of-the-literature
#5
Oluwatobi Olayiwola, Kristen Hook, Daniel Miller, Sheilagh Maguiness
Granular cell tumors (GCTs) are uncommon benign neoplasms thought to originate from Schwann cells. They most commonly present in adults as papules or nodules on mucosal sites. The clinical spectrum of GCT in children is not well delineated, although mucosal and cutaneous presentations have been reported. We present three children with cutaneous GCTs and review the literature in an attempt to further characterize this rare pediatric neoplasm.
May 25, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28543798/mucosal-melanoma-clinical-histological-and-c-kit-gene-mutational-profile-of-86-french-cases
#6
E Cinotti, J Chevallier, B Labeille, F Cambazard, L Thomas, B Balme, M T Leccia, M D'Incan, P Vercherin, C Douchet, P Rubegni, J L Perrot
BACKGROUND: Mucosal melanomas are rare and highly aggressive tumors. Few studies evaluated mucosal melanomas of locations other than the head and neck region, and other than those of the Asian population. OBJECTIVES: The objective of this study was to analyze the clinical and histological features, as well as the mutational status of c-kit and b-raf gene of mucosal melanoma in any localization in a French series. METHODS: We investigated clinical (sex, age, performance status, survival, treatment of the patients and lack of pigmentation of the tumors) and histopathologic features (ulceration, Breslow's index, mitotic rate), as well as the mutational status of c-kit and b-raf of 86 mucosal melanomas diagnosed in 15 years in four French University Hospitals...
May 22, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543785/phenotypic-and-genotypic-characteristics-of-candida-albicans-isolates-from-bloodstream-and-mucosal-infections
#7
Marina Mandelblat, Michael Frenkel, Darren Abbey, Ronen Ben Ami, Judith Berman, Esther Segal
The interaction of Candida albicans with the host is of a complex nature involving fungal factors and host's response. In this study, we concentrated on the phenotypic expression of virulence attributes and genotypic characteristics of C. albicans isolates from two distinct clinical entities of candidiasis-blood stream and vaginal infections, and the possible role of these factors. Hence, we conducted a comparative in vitro assessment of virulence characteristics, including adhesion to epithelial cells and HaCat cell line, biofilm formation, aspartic proteinases and phospholipase activity of 20 C...
May 22, 2017: Mycoses
https://www.readbyqxmd.com/read/28543780/intranasal-midazolam-versus-rectal-diazepam-for-the-management-of-canine-status-epilepticus-a-multicenter-randomized-parallel-group-clinical-trial
#8
M Charalambous, S F M Bhatti, L Van Ham, S Platt, N D Jeffery, A Tipold, J Siedenburg, H A Volk, D Hasegawa, A Gallucci, G Gandini, M Musteata, E Ives, A E Vanhaesebrouck
BACKGROUND: Intranasal administration of benzodiazepines has shown superiority over rectal administration for terminating emergency epileptic seizures in human trials. No such clinical trials have been performed in dogs. OBJECTIVE: To evaluate the clinical efficacy of intranasal midazolam (IN-MDZ), via a mucosal atomization device, as a first-line management option for canine status epilepticus and compare it to rectal administration of diazepam (R-DZP) for controlling status epilepticus before intravenous access is available...
May 24, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28543379/idiopathic-lymphoplasmacellular-mucositis-of-the-lips-a-case-report-and-review-of-the-literature
#9
Ren-Feng Liu, Chun-Bing Chen, Tseng-Tong Kuo, Wen-Hung Chung
Idiopathic lymphoplasmacellular mucositis (ILPM) is a group of disorders histologically characterized by dense infiltrates of lymphocytes and plasma cells in submucosa. These lesions are initially observed on the glans penis and vulva, and later on buccal mucosa, lips, gingiva, tongue, epiglottis, larynx, and other mucosal surfaces have also been reported. We have reviewed the previously reported cases of ILPM with lip involvement, outlining the clinical presentation, treatment and outcome of the entity to date...
May 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28543318/correlation-between-salivary-and-serum-anti-desmoglein-1-and-3-antibody-titres-using-elisa-and-between-anti-desmoglein-levels-and-disease-severity-in-pemphigus-vulgaris
#10
D De, G Khullar, S Handa, N Joshi, B Saikia, R W Minz
ELISA for anti-desmoglein antibodies (Dsg) is commonly used for diagnosis and assessment of treatment response in pemphigus vulgaris (PV). The present study was conducted to assess the relationship between salivary and serum Dsg1 and Dsg3 levels, and whether salivary Dsg1 and Dsg3 levels correlate with clinical disease severity of oral mucosal lesions in PV. In total 43, patients with PV with predominantly mucosal involvement were recruited. Both serum and salivary samples were collected from the cases, and salivary samples were also collected from five controls...
May 22, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28543038/central-voice-production-and-pathophysiology-of-spasmodic-dysphonia
#11
REVIEW
Niv Mor, Kristina Simonyan, Andrew Blitzer
OBJECTIVE: Our ability to speak is complex, and the role of the central nervous system in controlling speech production is often overlooked in the field of otolaryngology. In this brief review, we present an integrated overview of speech production with a focus on the role of central nervous system. The role of central control of voice production is then further discussed in relation to the potential pathophysiology of spasmodic dysphonia (SD). DATA SOURCES: Peer-review articles on central laryngeal control and SD were identified from PUBMED search...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28542929/the-immune-response-to-prevotella-bacteria-in-chronic-inflammatory-disease
#12
REVIEW
Jeppe Madura Larsen
The microbiota plays a central role in human health and disease by shaping immune development, immune responses, metabolism, and protecting from invading pathogens. Technical advances that allow comprehensive characterization of microbial communities by genetic sequencing have sparked the hunt for disease modulating bacteria. Emerging studies in humans have linked increased abundance of Prevotella species at mucosal sites to localized and systemic disease, including periodontitis, bacterial vaginosis, rheumatoid arthritis, metabolic disorders, and low-grade systemic inflammation...
May 19, 2017: Immunology
https://www.readbyqxmd.com/read/28542882/butyrate-and-retinoic-acid-synergistically-imprint-mucosal-like-dendritic-cell-development-from-bone-marrow-cells
#13
Yetao Qiang, Jie Xu, Cheng Yan, Huimin Jin, Tengfei Xiao, Nannan Yan, Liping Zhou, Huazhang An, Xiaoming Zhou, Qixiang Shao, Sheng Xia
Accumulating data show that the phenotypes and functions of distinctive mucosal dendritic cells (DCs) in the gut are regulated by retinoic acid (RA). Unfortunately, the exact role of butyrate in RA mediated mucosal DC differentiation has not been thoroughly elucidated to date. Mucosal like dendritic cell differentiation was completed in vitro by culturing bone marrow cells with growth factors (GM-CSF/IL-4), RA and/or butyrate. The phenotypes, cytokine secretion, immune functions and levels of retinal dehydrogenase of different DCs were detected using qPCR, ELISA and flow cytometry, respectively...
May 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28542812/modulating-nasal-mucosal-permeation-using-metabolic-saturation-and-enzyme-inhibition-techniques
#14
Varsha Dhamankar, Maureen D Donovan
OBJECTIVE: Presystemic elimination resulting from local enzymatic degradation can play a key role in limiting the bioavailability of intranasally administered drugs. The aim of this study was to evaluate the transfer of a metabolically susceptible drug across the nasal mucosa to illustrate the relative contributions of drug diffusivity and metabolic susceptibility on overall nasal mucosal permeation and to understand the effects of changes in enzymatic activity on the transfer across nasal epithelial and submucosal tissues...
May 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28542587/seminal-plasma-induces-inflammation-and-enhances-hiv-1-replication-in-human-cervical-tissue-explants
#15
Andrea Introini, Stéphanie Boström, Frideborg Bradley, Anna Gibbs, Axel Glaessgen, Annelie Tjernlund, Kristina Broliden
The most immediate and evident effect of mucosal exposure to semen in vivo is a local release of proinflammatory mediators accompanied by an influx of leukocytes into the female genital mucosa (FGM). The implication of such response in HIV-1 transmission has never been addressed due to limitations of currently available experimental models. Using human tissue explants from the uterine cervix, we developed a system of mucosal exposure to seminal plasma (SP) that supports HIV-1 replication. Treatment of ectocervical explants with SP resulted in the upregulation of inflammatory and growth factors, including IL-6, TNF, CCL5, CCL20, CXCL1, and CXCL8, and IL1A, CSF2, IL7, PTGS2, as evaluated by measuring protein levels in explant conditioned medium (ECM) and gene expression in tissue...
May 19, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542550/a-spatio-temporal-assessment-of-simian-human-immunodeficiency-virus-shiv-evolution-reveals-a-highly-dynamic-process-within-the-host
#16
Alison F Feder, Christopher Kline, Patricia Polacino, Mackenzie Cottrell, Angela D M Kashuba, Brandon F Keele, Shiu-Lok Hu, Dmitri A Petrov, Pleuni S Pennings, Zandrea Ambrose
The process by which drug-resistant HIV-1 arises and spreads spatially within an infected individual is poorly understood. Studies have found variable results relating how HIV-1 in the blood differs from virus sampled in tissues, offering conflicting findings about whether HIV-1 throughout the body is homogeneously distributed. However, most of these studies sample only two compartments and few have data from multiple time points. To directly measure how drug resistance spreads within a host and to assess how spatial structure impacts its emergence, we examined serial sequences from four macaques infected with RT-SHIVmne027, a simian immunodeficiency virus encoding HIV-1 reverse transcriptase (RT), and treated with RT inhibitors...
May 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542528/adaptation-of-candida-albicans-to-environmental-ph-induces-cell-wall-remodelling-and-enhances-innate-immune-recognition
#17
Sarah L Sherrington, Eleanor Sorsby, Nabeel Mahtey, Pizga Kumwenda, Megan D Lenardon, Ian Brown, Elizabeth R Ballou, Donna M MacCallum, Rebecca A Hall
Candida albicans is able to proliferate in environments that vary dramatically in ambient pH, a trait required for colonising niches such as the stomach, vaginal mucosal and the GI tract. Here we show that growth in acidic environments involves cell wall remodelling which results in enhanced chitin and β-glucan exposure at the cell wall periphery. Unmasking of the underlying immuno-stimulatory β-glucan in acidic environments enhanced innate immune recognition of C. albicans by macrophages and neutrophils, and induced a stronger proinflammatory cytokine response, driven through the C-type lectin-like receptor, Dectin-1...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28541767/gas-filled-microbubbles-novel-mucosal-antigen-delivery-system-for-induction-of-anti-pathogen-s-immune-responses-in-the-gut
#18
Blaise Corthésy, Gilles Bioley
Despite important success in protecting individuals against many pathogenic infections, parenteral vaccination is not optimal to induce immunity at the site of pathogen entry, i.e. mucosal surfaces. Moreover, designing adequate delivery systems and safe adjuvants to overcome the inherent tolerogenic environment of the mucosal tissue is challenging, in particular in the gastrointestinal tract prone to antigen degradation. We recently demonstrated that intranasal administration of a Salmonella-derived antigen associated with gas-filled microbubbles induced specific Ab and T cell responses in the gut and was associated with a reduction in local and systemic bacterial load after oral Salmonella infection...
May 25, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28541099/cost-effectiveness-analysis-of-endoscopic-eradication-therapy-for-treatment-of-high-grade-dysplasia-in-barrett-s-esophagus
#19
Alex Filby, Matthew Taylor, Gideon Lipman, Laurence Lovat, Rehan Haidry
AIM: The aim was to evaluate the cost-effectiveness of endoscopic eradication therapy (EET) with combined endoscopic mucosal resection and radiofrequency ablation for the treatment of high-grade dysplasia (HGD) arising in patients with Barrett's esophagus compared with endoscopic surveillance alone in the UK. MATERIALS & METHODS: The cost-effectiveness model consisted of a decision tree and modified Markov model. A lifetime time horizon was adopted with the perspective of the UK healthcare system...
May 25, 2017: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/28540986/central-obesity-as-a-risk-factor-for-non-erosive-reflux-disease
#20
Ki Ju Kim, Ban Seok Lee
PURPOSE: Although central obesity is a risk factor for erosive esophagitis, information regarding the association between central obesity and non-erosive reflux disease (NERD) is still scarce. The purpose of this study was to investigate the risk factors for NERD by comparing NERD patients and healthy controls. MATERIALS AND METHODS: Comprehensive clinical data from 378 patients who underwent esophagogastroduodenoscopy from December 2012 to May 2013 and had no visible esophageal mucosal breakage were analyzed...
July 2017: Yonsei Medical Journal
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