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https://www.readbyqxmd.com/read/28730368/safety-of-cold-polypectomy-for-small-colorectal-neoplastic-lesions-a-prospective-cohort-study-in-japan
#1
Yuichi Shimodate, Motowo Mizuno, Rio Takezawa, Mami Kobayashi, Tatsuhiro Yamazaki, Akira Doi, Naoyuki Nishimura, Hirokazu Mouri, Kazuhiro Matsueda, Hiroshi Yamamoto
BACKGROUND: Cold polypectomy has been widely accepted for removal of small colorectal polyps. However, no large-scale prospective study exists as for its safety in Japan. We investigated this issue in this single-center, prospective cohort study in a total of 1198 colorectal polyps resected with cold polypectomy. PATIENTS AND METHODS: Four hundred and seventy-four patients who underwent cold polypectomy for colorectal neoplastic lesions less than 10-mm diameter between September 2014 and October 2016 were enrolled...
July 20, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28721979/histological-outcomes-between-hot-and-cold-snare-polypectomy-for-small-colorectal-polyps
#2
Toshiki Yamamoto, Sho Suzuki, Chika Kusano, Kyoko Yakabe, Maho Iwamoto, Hisatomo Ikehara, Takuji Gotoda, Mitsuhiko Moriyama
BACKGROUND/AIM: To compare the complete resection rate of hot and cold snare polypectomy for small colorectal polyps. PATIENTS AND METHODS: We retrospectively reviewed the medical records of 233 consecutive patients with 461 colorectal polyps up to 10 mm in diameter that were treated by hot or cold snare polypectomy between April 2014 and August 2016. Lesions treated by hot snare polypectomy (n = 137) and cold snare polypectomy (n = 324) were compared. The histological complete resection rates were evaluated between the two groups...
July 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28713972/expression-and-subcellular-localization-of-at-motif-binding-factor-1-in-colon-tumours
#3
Hiromi Kataoka, Yutaka Miura, Makoto Kawaguchi, Shugo Suzuki, Yasuyuki Okamoto, Keiji Ozeki, Takaya Shimura, Tsutomu Mizoshita, Eiji Kubota, Satoshi Tanida, Satoru Takahashi, Kiyofumi Asai, Takashi Joh
AT motif binding factor 1 (ATBF1) is a transcriptional regulator that functions as a tumour suppressor to negatively affect cancer cell growth. In the present study four specific polyclonal antibodies against ATBF1 were generated, and the expression and intracellular localization of ATBF1 in colonic mucosae, polyps, adenoma and adenocarcinoma tissue samples were investigated. The four polyclonal antibodies produced were as follows: MB34 and MB49, which recognize the N‑ and C‑terminal fragments of ATBF1, respectively; and D1‑120 and MB44, which recognize the middle fragments of ATBF1 that contain three nuclear localization signals (NLS)...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28710883/an-atypical-type-i-gastric-neuroendocrine-tumor
#4
Andrada-Viorela Gheorghe, Mihai Rimbas, Octav Ginghina, Andrada Spanu, Theodor Alexandru Voiosu
BACKGROUND: Gastric neuroendocrine tumors(GI-NETs) are rare lesions, usually discovered incidentally during endoscopy. Based on their pathology, there are 4 types of GI-NETs. Type I are multiple small polypoid lesions with central ulceration located in the gastric body or the fundus, associated with atrophic gastritis usually noninvasive and very rarely metastatic. We report on a rare case of a gastric NET arising from the muscularis propria layer of the pyloric ring. CASE REPORT: We present the case of a 65-year old woman with a history of alcoholic cirrhosis, investigated for melena...
July 14, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28710577/detection-of-small-bowel-tumours-with-ct-enteroclysis-using-carbon-dioxide-and-virtual-enteroscopy-a-preliminary-study
#5
Anthony Dohan, Mourad Boudiaf, Xavier Dray, Elia Samaha, Christophe Cellier, Marine Camus, Clarisse Eveno, Raphael Dautry, Philippe Soyer
PURPOSE: The aim of this prospective study was to evaluate the feasibility, tolerance and performance of virtual enteroscopy (VE) using carbon dioxide for small-bowel distension in patients with suspected small-bowel tumours (SBTs). PATIENTS AND METHODS: After IRB approval, 17 patients with suspected SBTs were prospectively included. Radiation dose was compared to 34 matched patients (2 for 1) for age, gender and body weight, who had undergone CT-enteroclysis with neutral contrast (CTE)...
July 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28705174/extensive-colorectal-lymphomatous-polyposis-complicated-by-acute-intestinal-obstruction-a-case-report
#6
Jaques Waisberg, Amanda do Val Anderi, Pedro Augusto Soffner Cardoso, José Henrique Miranda Borducchi, Demetrius Eduardo Germini, Maria Isete Fares Franco, Cidia Vasconcellos
BACKGROUND: Multiple lymphomatous polyposis is a rare type of gastrointestinal lymphoma that extensively infiltrates the intestine. Multiple lymphomatous polyposis originates from the mantle zone of the lymphoma follicle and is considered to be a mantle cell lymphoma, which is a relatively aggressive type of B-cell non-Hodgkin's lymphoma. We report an unusual case of a patient with multiple lymphomatous polyposis with extensive colorectal involvement and acute intestinal obstruction, an atypical complication of this rare disease...
July 13, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28689023/profiling-of-cytokines-chemokines-and-other-soluble-proteins-as-a-potential-biomarker-in-colorectal-cancer-and-polyps
#7
Nor Adzimah Johdi, Luqman Mazlan, Ismail Sagap, Rahman Jamal
Soluble proteins including cytokines, chemokines and growth factors are small proteins that mediate and regulate immunity. They involved in the pathogenesis of many diseases including cancers. The concentration of these proteins in biological fluids (serum or plasma) and tissues in diseases may suggest pathway activation that leads to inflammatory response or disease progression. Therefore, these soluble proteins may be useful as a tool for screening, diagnosis classification between stages of disease or surveillance for therapy...
July 6, 2017: Cytokine
https://www.readbyqxmd.com/read/28687028/adjunctive-use-of-chromoendoscopy-may-improve-the-diagnostic-performance-of-narrow-band-imaging-for-small-sessile-serrated-adenoma-polyp
#8
Li-Chun Chang, Chia-Hung Tu, Been-Ren Lin, Chia-Tung Shun, Weng-Feng Hsu, Jin-Tung Liang, Hsiu-Po Wang, Ming-Shiang Wu, Han-Mo Chiu
BACKGROUND AND AIMS: Endoscopic diagnosis of sessile serrated adenomas/polyps (SSA/P) is challenging because of their subtle appearance. Narrow-band imaging (NBI) is useful for diagnosis, but its utility with concurrent chromoendoscopy (CE), especially to detect small SSA/P, is unproven. PATIENTS AND METHODS: This prospective study enrolled 367 consecutive patients who underwent screening colonoscopy with the finding of serrated polyps. Patients were divided into derivation and validation cohorts: Diagnostic criteria using different endoscopic modalities were generated by regression analysis in the derivation cohort and were validated in the validation cohort for sensitivity, specificity, and accuracy...
July 7, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28685526/glycyrrhetinic-acid-suppressed-hmgb1-release-by-up-regulation-of-sirt6-in-nasal-inflammation
#9
D Chen, L M Bellussi, S Cocca, J Wang, G C Passali, X Hao, L Chen, D Passali
To extend our understanding of previous studies on the pathogenesis and mechanism of high mobility group box 1 (HMGB1) in chronic rhinosinusitis with nasal polyps (CRSwNP), here we show that Sirtuin 6 (Sirt6), one of the Sirtuin family members which are widely studied in aging, DNA repair, metabolism, inflammation and cancer, was expressed in normal nasal mucosa using immunohistochemical staining and Western blot assay. Sirt6 expression levels were decreased in CRSwNP tissue. Sirt6 expression levels were modulated by small interfering RNA transfection in human nasal epithelial cells (HNE)...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28685081/clinical-endoscopic-and-pathological-characteristics-of-colorectal-polyps-in-elderly-patients-single-center-experience
#10
Lei Zhou, Heng Zhang, Shengbin Sun, Manling Huang, Jing Liu, Dan Xu, Min Song, Chenming Sun, Hui Li, Dan Zheng, Yan Fan, Yusheng Liao, Ping Wang, Jie Wu
Increasing age is a risk factor for the development of colorectal adenomas and advanced adenomas. However, few studies have been published on the features of colorectal polyps in the elderly. The present study aimed to investigate the clinical, enteroscopic and pathological characteristics of colorectal polyps in Chinese elderly patients in a single center (The Central Hospital of Wuhan, Hubei, China). The endoscopic and pathological reports of colonoscopies performed in our center were retrospectively analyzed...
July 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28670615/cold-snare-polypectomy-reduced-delayed-postpolypectomy-bleeding-compared-with-conventional-hot-polypectomy-a-propensity-score-matching-analysis
#11
Takeshi Yamashina, Manabu Fukuhara, Takanori Maruo, Gensho Tanke, Saiko Marui, Ryota Sada, Mio Taki, Yoshiaki Ohara, Azusa Sakamoto, Shinichiro Henmi, Yugo Sawai, Sumio Saito, Norihiro Nishijima, Akihiro Nasu, Hideyuki Komekado, Akira Sekikawa, Masanori Asada, Takehiko Tumura, Ryuichi Kita, Toru Kimura, Yukio Osaki
BACKGROUND AND STUDY AIMS:  Cold snare polypectomy (CSP) for small colorectal polyps has lower incidence of adverse events, especially delayed postpolypectomy bleeding (DPPB). However, few data are available on comparisons of the incidence of DPPB of CSP and hot polypectomy (HP). The aim of this study was to evaluate the incidence of DPPB after CSP and compare it with that of HP. A propensity score model was used as a secondary analysis. PATIENTS AND METHODS:  This was a retrospective cohort study conducted in a single municipal hospital...
July 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28670614/efficacy-and-safety-of-cold-snare-resection-in-preventive-screening-colonoscopy
#12
B Schett, J Wallner, V Weingart, A Ayvaz, U Richter, J Stahl, H-D Allescher
BACKGROUND AND AIM:  Removal of polyps during colonoscopy effectively prevents the development of colorectal cancer. So far, snare resection with high frequency current with or without prior submucosal saline injection is the method of choice. The aim of this study was to evaluate the feasibility, safety, and outcome of cold snare resection during routine endoscopy. METHODS:  In this prospective study, 522 patients undergoing outpatient colonoscopy were included...
July 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28654863/stat6-promotes-intestinal-tumorigenesis-in-a-mouse-model-of-adenomatous-polyposis-by-expansion-of-mdscs-and-inhibition-of-cytotoxic-cd8-response
#13
Asha Jayakumar, Alfred L M Bothwell
Intestinal tumorigenesis in the ApcMin/+ model is initiated by aberrant activation of Wnt pathway. Increased IL-4 expression in human colorectal cancer tissue and growth of colon cancer cell lines implied that IL-4-induced Stat6-mediated tumorigenic signaling likely contributes to intestinal tumor progression in ApcMin/+ mice. Stat6 also appears to promote expansion of myeloid-derived suppressor cells (MDSCs) cells. MDSCs promote polyp formation in the ApcMin/+ model. Hence, Stat6 could have a broad role in coordinating both polyp cell proliferation and MDSC expansion...
June 24, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28652161/the-surgical-management-of-bladder-polyps-in-the-setting-of-exstrophy-epispadias-complex-eec
#14
John Jayman, Ali Tourchi, Masha Shabaninia, Mahir Maruf, Heather DiCarlo, John P Gearhart
PURPOSE: To investigate the surgical course for treating bladder polyps in patients with Exstrophy Epispadias Complex (EEC). EEC bladder polyps are unique pathological entities, with a distinct difference between polyps discovered at birth and polyps developed after failed exstrophy closure. MATERIALS AND METHODS: A prospectively maintained database of 1300 patients with EEC was reviewed for bladder exstrophy (BE) patients with bladder polyps. The following data was obtained: patient demographics, polyp type, past medical and surgical history, and continence outcomes...
June 23, 2017: Urology
https://www.readbyqxmd.com/read/28647136/polypectomy-for-the-complete-endoscopic-resection-of-small-colorectal-polyps
#15
Qisheng Zhang, Peng Gao, Bin Han, Jianhua Xu, Yucui Shen
BACKGROUND AND AIMS: Small colorectal polyps are frequently encountered and may be incompletely removed during colonoscopy. The optimal technique for removal of small colorectal polyps is uncertain. The aim of this study was to compare the incomplete resection rate (IRR) using endoscopic mucosal resection (EMR) or cold snare polypectomy (CSP) for the removal of small adenomatous polyps. METHODS: This was a prospective randomized controlled study from a tertiary referral center...
June 21, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28643886/ileocolic-intussusception-from-an-inflammatory-fibroid-polyp-a-rare-cause-of-adult-small-bowel-obstruction
#16
Sabrina Mader, Joseph Ting, Hajir Nabi
No abstract text is available yet for this article.
June 23, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28641945/surveillance-after-positive-colonoscopy-based-on-adenoma-characteristics
#17
Ido Laish, Ilia Seregeev, Timna Naftali, Fred M Konikoff
BACKGROUND: Patients with adenomatous polyps are at increased risk for developing colorectal cancer based on the characteristics and number of polyps, but less is known about the individual and combined contribution of these factors. This study aimed to better characterize the risk of advanced adenoma and cancer in patients with positive baseline colonoscopy. METHODS: Patients who had polyps at baseline colonoscopy were included in this retrospective cohort study (N=1165) and were categorized into 6 groups: (1) 1-2 non-advanced adenomas (NAA's), (2) ≥3 NAA's, (3) advanced tubular adenoma, (4) small tubulovillous adenoma (TVA), (5) large TVA and (6) multiple advanced adenomas (MAA's)...
May 16, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28638413/uterine-cavity-abnormalities-in-patients-with-endometriosis-in-alexandria-a-diagnostic-test-accuracy-study
#18
Eman Aly Abd El Fattah
Endometriosis is strongly associated with infertility. Endometrial polyps are prevalent in infertile women and they have similar pathological characteristics to endometriosis, suggesting a possible association. Uterine malformations as uterine septum and hypoplastic uterus are also linked to endometriosis. Hysterosalpingogram and transvaginal ultrasonography are used to diagnose endometrial lesions. Hysteroscopy can detect small lesions that might be missed. Recently, 4D ultrasonography is being used, but which is superior has not been established yet...
2017: Obstetrics and Gynecology International
https://www.readbyqxmd.com/read/28625834/association-between-natural-killer-cell-activity-and-colorectal-cancer-in-high-risk-subjects-undergoing-colonoscopy
#19
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/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
#20
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
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