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https://www.readbyqxmd.com/read/28634018/distribution-subtype-population-and-ige-positivity-of-mast-cells-in-chronic-rhinosinusitis-with-nasal-polyps
#1
Shintaro Baba, Kenji Kondo, Maho Suzukawa, Ken Ohta, Tatsuya Yamasoba
BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) has been categorized into 2 subtypes in the Asian population: eosinophilic chronic rhinosinusitis (ECRS; similar to CRSwNP in Western countries) and non-ECRS (characterized by inflammation dominated by T-helper cell type 1). The pathogenesis of CRSwNP and the role of mast cells are poorly understood. OBJECTIVE: To investigate the distribution, phenotypes, and immunoglobulin E (IgE) positivity of mast cells in these 2 subtypes of CRSwNP...
June 17, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28630589/laparoscopic-colorectal-surgery-for-colorectal-polyps-experience-of-ten-years
#2
Audrius Dulskas, Žygimantas Kuliešius, Narimantas E Samalavičius
Background. Laparoscopy or its combination with endoscopy is the next step for "difficult" polyps. The purpose of the paper was to review the outcomes of the laparoscopic approach to the management of "difficult" colorectal polyps. Materials and methods. From 2006 to 2016, 58 patients who underwent laparoscopic treatment for "difficult" polyps that could not be treated by endoscopy at the National Cancer Institute, Lithuania, were included. The demographic data, the type of surgery, length of post-operative stay, complications, and final pathology were reviewed prospectively...
2017: Acta medica Lituanica
https://www.readbyqxmd.com/read/28627675/distinctive-crypt-shape-in-a-sessile-serrated-adenoma-polyp-distribution-of-ki67-p16ink4a-wnt5a-positive-cells-and-intraepithelial-lymphocytes
#3
Kenji Hisamatsu, Kei Noguchi, Hiroyuki Tomita, Aoi Muto, Natsumi Yamada, Kazuhiro Kobayashi, Akihiro Hirata, Tomohiro Kanayama, Ayumi Niwa, Kazuhisa Ishida, Takayuki Nakashima, Yuichiro Hatano, Natsuko Suzui, Tatsuhiko Miyazaki, Akira Hara
Serrated lesions in the colorectum are currently predominantly classified as hyperplastic polyps (HPs), sessile serrated adenomas/polyps (SSA/Ps), and traditional serrated adenomas (TSAs) according to their morphology. However, the histological morphology and the molecular changes in the serrated lesions are still unclear. We performed immunohistochemistry for Ki67, p16INK4a, and WNT5A in human HPs (n=22), SSA/Ps (n=41), and TSAs (n=19). The distribution of Ki67 and p16INK4a positive cells in TSAs was different from that in HPs and SSA/Ps...
June 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28626382/a-symptomatic-coffee-bean-acute-sigmoid-volvulus
#4
Michael Scharl, Luc Biedermann
An acute sigmoid volvulus is due to the torsion of the sigmoid colon around its mesenteric axis. It mainly occurs in elderly patients and represents an abdominal emergency requiring urgent treatment. A 53-year-old male patient with severe craniocerebral injury and traumatic subarachnoidal bleeding 3 weeks prior presented on the ward with distended abdomen without abdominal pain, muscular defense, or resistances. He featured large volume diarrhea within the last few hours without signs of bleeding. A plain abdominal X-ray demonstrated a coffee bean sign indicating a sigmoid volvulus...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28625834/association-between-natural-killer-cell-activity-and-colorectal-cancer-in-high-risk-subjects-undergoing-colonoscopy
#5
G Jobin, R Rodriguez-Suarez, K Betito
BACKGROUND & AIMS: Low activity of natural killer (NK) cells has been associated with increased risk of cancer and has been reported in patients with colorectal cancer (CRC). Activity of NK cells can be measured in a small volume of whole blood by a commercially available test. We investigated whether this test could be used to identify patients with CRC, using findings from colonoscopy as a reference standard. METHODS: We performed an open-label, prospective, cross-sectional study of 872 high-risk subjects (more than 40 years old) screened for CRC by colonoscopy at a university hospital in Montreal, Canada from October 2014 through January 2016...
June 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28625807/evidence-for-altered-levels-of-immunoglobulin-d-in-the-nasal-airway-mucosa-of-patients-with-chronic-rhinosinusitis
#6
Jin-Young Min, Jayakar V Nayak, Kathryn E Hulse, Whitney W Stevens, Paul A Raju, Julia H Huang, Lydia A Suh, Griet A Van Roey, James E Norton, Roderick G Carter, Caroline P E Price, Ava R Weibman, Ali R Rashan, Eliver E Ghosn, Zara M Patel, Tetsuya Homma, David B Conley, Kevin C Welch, Stephanie Shintani-Smith, Anju T Peters, Leslie C Grammer, Kathleen E Harris, Atsushi Kato, Peter H Hwang, Robert C Kern, Leonore A Herzenberg, Robert P Schleimer, Bruce K Tan
BACKGROUND: Immunoglobulin D (IgD) is an enigmatic antibody isotype best known when co-expressed with IgM on naïve B cells. However, elevated soluble IgD (sIgD) and increased IgD(+)IgM(-) B cell populations have been described in the human upper respiratory mucosa. OBJECTIVE: We assessed whether levels of sIgD and IgD(+) B cells are altered in nasal tissue from patients with chronic rhinosinusitis (CRS). We further characterized IgD(+) B cell populations and explored clinical and local inflammatory factors associated with tissue sIgD levels...
June 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28625419/recommendation-of-colorectal-cancer-testing-among-primary-care-patients-younger-than-50-with-elevated-risk
#7
Celette Sugg Skinner, Chul Ahn, Ethan A Halm, Wendy Pechero Bishop, Katharine McCallister, Joanne M Sanders, David Farrell, Noel Santini, Amit G Singal
In the era of precision medicine, efforts are needed to identify and tailor screening recommendations among elevated-risk patients. Individuals younger than 50years are an important target population, as they comprise 15% of colorectal (CRC) cases and often present with more advanced disease than their 50+ counterparts. In this large study, 2470 patients ages 25-49 used a tablet-based program that assessed risks, matched risks with screening guidelines, and generated tailored printed guideline-concordant recommendations for patients and their providers...
June 15, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28625008/the-role-of-local-allergy-in-the-nasal-inflammation
#8
REVIEW
Ke-Jia Cheng, Min-Li Zhou, Ying-Ying Xu, Shui-Hong Zhou
Local allergic inflammation (LAI) is recognized recently. 'entopy' was used to define LAI, which was positively correlated with allergen provocation testing, local sIgE up-regulation, inflammatory mediator secretion, and a lack of systemic allergy. The study of LAI is in its infancy and focuses mainly on the respiratory system. It is closely related to nasal inflammation and plays important roles in patients with nonallergic rhinitis (NAR), nonallergic chronic sinusitis with nasal polyps (CRSwNP), and nonallergic fungal rhinosinusitis (NAFRS)...
June 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28624844/the-effect-of-endoscopic-sinus-surgery-on-quality-of-life-and-absenteeism-in-patients-with-chronic-rhinosinuitis-a-multi-centre-study
#9
P Sahlstrand-Johnson, C Hopkins, B Ohlsson, M Ahlner-Elmqvist
BACKGROUND: Chronic rhinosinusitis with and without nasal polyps (CRSw/sNP) are common conditions decreasing health-related quality of life (HRQOL). Individual symptoms capable of predicting outcome after endoscopic sinus surgery (ESS) are poorly defined, and the indirect costs of CRS is rarely reported in Europe. METHODOLOGY: Patients with CRSw/sNP admitted for ESS were prospectively enrolled. Patients completed the 22 Sinonasal Outcome Test (SNOT-22), the short-form 36-item questionnaire (SF-36), a Visual Analogue Scale (VAS) and reported CRS-related absenteeism pre- and post-operatively...
June 18, 2017: Rhinology
https://www.readbyqxmd.com/read/28624559/a-study-of-family-history-and-pathology-features-in-egyptians-with-large-bowel-cancer-cross-sectional-study
#10
Ahmed A Abou-Zeid, Wael A Jumuah, Essam F Ebied, Karim Sabry Abd El Samee Atia, Yasser El Ghamrini, Dina A Somaie
BACKGROUND: Colorectal cancer in Egypt has a higher incidence in young patients compared to western countries, where the disease is more prevalent in the old age group. This difference has been attributed to higher incidence of hereditary cancers in young Egyptian patients. The aim of this study is to compare the family history criteria and pathology features of tumors in young (<40 years) and old (>40 years) Egyptian patients with adenocarcinoma of the colon and rectum. MATERIALS AND METHODS: This is the analysis of our prospectively collected data on the pathology features of tumors in 313 consecutive patients (133 young, 180 old) with colorectal cancer presenting to the Department of Surgery within an eight-year period...
June 14, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28624315/coexisting-vocal-fold-polyps-and-sulcus-vocalis-coincidence-or-coexistence-characteristics-of-14-patients
#11
Narin Nard Carmel-Neiderman, Oshri Wasserzug, Tomer Ziv-Baran, Yael Oestreicher-Kedem
OBJECTIVE: The study aimed (1) to evaluate the prevalence of sulcus vocalis (SV) coexisting with vocal fold polyp (SV-VFP), and (2) to determine the effect of their coexistence on voice quality. STUDY DESIGN: This is a retrospective cohort study in a tertiary referral center. METHODS: The medical records of all patients who underwent micro direct laryngoscopy due to VFPs between January 2013 and April 2015 were reviewed. Patients with SV-VFP were identified and data of their demographics, medical history, habits, preoperative and intraoperative laryngeal findings, and pre- and postoperative GRBAS (Grade, Roughness, Breathiness, Asthenia, Strain) score, and compared with the data of patients with solitary VFPs (S-VFPs)...
June 14, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28623534/acquired-immunity-in-chronic-rhinosinusitis
#12
REVIEW
Bruce K Tan, Jin-Young Min, Kathryn E Hulse
Chronic rhinosinusitis (CRS) is a prevalent disease that is associated with significant costs and quality of life impairments. Currently, patients are classified into subgroups based on clinical characteristics, most often the presence or absence of nasal polyps. However, despite medical and surgical treatment, many of these patients continue to have symptoms. Recent efforts have focused on gaining a more complete understanding of the inflammatory mechanisms that drive pathogenesis in CRS, and it is becoming clear that the inflammatory processes in CRS are quite complex...
July 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28622040/analysis-of-differential-genetic-expression-in-endometrial-polyps-of-postmenopausal-women
#13
J K Troncon, J Meola, F J Candido-Dos-Reis, O B Poli-Neto, A A Nogueira, J C Rosa-E-Silva
OBJECTIVES: To evaluate the expression of four genetic markers (PTEN, BCL2, MLH1, and CTNNB1), linked to endometrial carcinogenesis, in endometrial polyps of patients with and without postmenopausal bleeding in order to determine whether symptomatic endometrial polyps have a genetic phenotype similar to that of endometrial cancer. METHODS: Samples were obtained hysteroscopically from endometrial polyps of postmenopausal patients, and the expression of genetic markers involved in the pathogenesis of endometrial cancer (PTEN, BCL2, MLH1, and CTNNB1) was analyzed...
June 16, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28621643/the-clinical-effectiveness-of-different-surveillance-strategies-to-prevent-colorectal-cancer-in-people-with-intermediate-grade-colorectal-adenomas-a-retrospective-cohort-analysis-and-psychological-and-economic-evaluations
#14
Wendy Atkin, Amy Brenner, Jessica Martin, Katherine Wooldrage, Urvi Shah, Fiona Lucas, Paul Greliak, Kevin Pack, Ines Kralj-Hans, Ann Thomson, Sajith Perera, Jill Wood, Anne Miles, Jane Wardle, Benjamin Kearns, Paul Tappenden, Jonathan Myles, Andrew Veitch, Stephen W Duffy
BACKGROUND: The UK guideline recommends 3-yearly surveillance for patients with intermediate-risk (IR) adenomas. No study has examined whether or not this group has heterogeneity in surveillance needs. OBJECTIVES: To examine the effect of surveillance on colorectal cancer (CRC) incidence; assess heterogeneity in risk; and identify the optimum frequency of surveillance, the psychological impact of surveillance, and the cost-effectiveness of alternative follow-up strategies...
April 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28621634/the-utility-of-screening-colonoscopy-during-kidney-transplant-evaluation
#15
Yu Zheng, Kevin V Chaung, Paul J Park, Joshua J Augustine, Nagaraju Sarabu, James A Schulak, Edmund Q Sanchez, Vanessa R Humphreville, John B Ammori, Kenneth J Woodside
OBJECTIVES: Transplant centers often recommend, but not necessarily require, screening colonoscopies for people over 50 years of age in accordance with the US Preventative Services Task Force guidelines for the general population. We sought to identify risk factors affecting colonoscopy results in renal failure patients undergoing kidney transplant evaluation. MATERIALS AND METHODS: We retrospectively examined patients undergoing kidney transplant evaluation from 2009 to 2012 (n = 469 patients)...
June 16, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28621024/the-validity-of-nasal-endoscopy-in-patients-with-chronic-rhinosinusitis-an-interrater-agreement-study
#16
K L Larsen, B Lange, P Darling, G Jørgensen, A D Kjeldsen
OBJECTIVES: Nasal endoscopy is a cornerstone in diagnosing sinonasal disease but different raters might generate different results using the technique. Our study aims to evaluate the agreement between multiple raters to assess the validity of nasal endoscopy. DESIGN/PARTICIPANTS: Three independent and blinded raters evaluated 28 patients (56 nasal cavities) diagnosed with chronic rhinosinusitis according to the European Position Paper on Rhinosinusitis and Nasal Polyps...
June 16, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28619710/heme-oxygenase-1-production-by-intestinal-cx3cr1-macrophages-helps-to-resolve-inflammation-and-prevents-carcinogenesis
#17
Giulia Marelli, Marco Erreni, Achille Anselmo, Valentina Taverniti, Simone Guglielmetti, Alberto Mantovani, Paola Allavena
CX3CR1(+) macrophages in the intestinal lamina propria contribute to gut homeostasis through the immunomodulatory interleukin IL-10, but there is little knowledge on how these cells or the CX3CR1 receptor may affect colorectal carcinogenesis. In this study, we show that CX3CR1-deficient mice fail to resolve gut inflammation despite high production of IL-10 and have increased colitis and adenomatous polyps in chemical and genetic models of colon carcinogenesis. Mechanistically, CX3CL1-mediated engagement of the CX3CR1 receptor induced upregulation of hemoxygenase-1 (HMOX-1), an antioxidant and anti-inflammatory enzyme...
June 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28617875/cholangioscopy-using-the-spyglass-system-for-a-rare-cause-of-obstruction-inflammatory-polyp-of-the-common-bile-duct
#18
Theodor Voiosu, Monica Ionita, Andrei Voiosu, Andreea Bengus, Cristiana Popp, Bogdan Mateescu
No abstract text is available yet for this article.
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28616092/vascularization-from-flexible-imaging-color-enhancement-fice-for-polyp-localization
#19
Vbs Prasath
Background. Virtual chromoendoscopy is an imaging technology that helps in better visualizing the gastrointestinal tract effectively. Recently, the flexible imaging color enhancement (FICE) technique developed by Fijifilm has been considered an alternative to traditional dye spraying. This results in a clearer visualization of the vascular patterns than through the traditional white light endoscopy imaging methods. The performance of vasculature based polyp localization in both traditional and corresponding virtual coloration by FICE was analyzed...
April 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28615628/glucocorticoids-ameliorate-tgf-%C3%AE-1-mediated-epithelial-to-mesenchymal-transition-of-airway-epithelium-through-mapk-and-snail-slug-signaling-pathways
#20
Hyun-Woo Yang, Seoung-Ae Lee, Jae-Min Shin, Il-Ho Park, Heung-Man Lee
Chronic rhinosinusitis with nasal polyps (CRSwNP) is closely associated with tissue remodeling. Epithelial-to-mesenchymal transition (EMT), a process of tissue remodeling, can be a therapeutic target of CRSwNP. Glucocorticoids are a type of steroid hormone that is used primarily in medical therapy for patients with CRSwNP; however, their effects on EMT in the airway epithelium remain unknown. To investigate the effects of dexamethasone and fluticasone propionate, a class of glucocorticoids, on transforming growth factor-β1 (TGF-β1) -induced EMT, we used A549 cells, human primary nasal epithelial cells (hPNECs) and ex vivo organ culture of the inferior turbinate...
June 14, 2017: Scientific Reports
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