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Zhiyong Yan, Shusheng Che, Yingbin Jiao, JianPeng Wang, Xingze Li, Chao Wang
Cerebral cavernous malformations (CCMs) are present in up to 0.5% of the general population. While CCMs have been considered congenital lesions, numerous reports have observed de novo formations in patients with the familial form of CCM and in patients after cranial radiotherapy. Outside of these circumstances, there is scant evidence as to the potential etiologies of CCM. We present a 48-year-old woman with a medical history of endometrial hyperplasia concomitant endometrial polyps demonstrating a large de novo CCM, which grew to a large size in a period of 20 months...
June 18, 2018: World Neurosurgery
Donald A Leopold, David Elkayam, John C Messina, Colette Kosik-Gonzalez, Per G Djupesland, Ramy A Mahmoud
BACKGROUND: Chronic rhinosinusitis (CRS) is common and sometimes complicated by nasal polyps (NP). Corticosteroid nasal sprays are often unsatisfactory because they are ineffective at delivering medication to high/deep sites of inflammation. OBJECTIVE: Assess whether an exhalation delivery system with fluticasone (EDS-FLU), capable of high/deep drug deposition, improves outcomes. METHODS: Patients (N=323) ≥18 years with moderate-to-severe congestion and NP were randomized to twice-daily EDS-FLU (93, 186, or 372μg) or EDS-placebo for 24 weeks (16 double-blind [DB] plus 8 open-label [OL] when all received 372μg)...
June 18, 2018: Journal of Allergy and Clinical Immunology
Gregor Urban, Priyam Tripathi, Talal Alkayali, Mohit Mittal, Farid Jalali, William Karnes, Pierre Baldi
BACKGROUND & AIMS: The benefit of colonoscopy for colorectal cancer prevention depends on the adenoma detection rate (ADR). The ADR should reflect adenoma prevalence rate, estimated to be greater than 50% among the screening-age population. Yet the rate of adenoma detection by colonoscopists varies from 7% to 53%. It is estimated that every 1% increase in ADR reduces the risk of interval colorectal cancers by 3-6%. New strategies are needed to increase the ADR during colonoscopy. We tested the ability of computer-assisted image analysis, with convolutional neural networks (a deep learning model for image analysis), to improve polyp detection, a surrogate of ADR...
June 18, 2018: Gastroenterology
Yunshuai Wang, Zhaohui Li, Wenxian Li, Shuaifeng Liu, Baowei Han
The aim of the present study was to examine the diagnosis of methylation of CDX2 gene promoter in colorectal cancer (CRC) and assessed its value in the prediction of treatment efficacy. Sixty patients who were diagnosed as CRCs for the first time, 60 patients with hyperplastic polyps (HPs) and adenomas, and 60 patients with inflammatory lesions or healthy patients (control group) were included in the present study. The methylation levels of CDX2 gene promoter were detected by methylation-specific polymerase chain reaction (MSP), and the expression levels of CDX2 mRNA were detected by fluorescence quantitative PCR...
July 2018: Oncology Letters
Chui Ming Gemmy Cheung, Yasuo Yanagi, Masahiro Akiba, Anna Tan, Ranjana Mathur, Choi Mun Chan, Ian Yeo, Tien Y Wong
PURPOSE: To assess the ability of optical coherence tomography (OCT) alone and in combination with OCT angiography (OCTA) to differentiate polypoidal choroidal vasculopathy (PCV) from neovascular age-related macular degeneration, as compared to fluorescein angiography and indocyanine green angiography. METHODS: This is a cross-sectional study. All participants had a standardized history, clinical examination including measurement of best-corrected visual acuity, slit-lamp biomicroscopy, and indirect fundus examination, and underwent standardized imaging (color photography, fluorescein and indocyanine green angiography, OCT, and OCTA) after predefined protocols...
June 20, 2018: Retina
Kunbei Lai, Ying Li, Lijun Zhou, Xiaojin Zhong, Chuangxin Huang, Fabao Xu, Lin Lu, Jian Ge, Chenjin Jin
BACKGROUND: The optimal treatment for polypoidal choroidal vasculopathy (PCV) is still under debate. Little knowledge is known about the treatment effect of "1+pro re nata(PRN)" treatment regimen for PCV. The aim of this study was to compare the outcomes of photodynamic therapy (PDT), intravitreal ranibizumab injection (IVR) and combination therapy under the "1 + PRN" treatment regimen for PCV. METHODS: Fifty-seven eyes of 57 patients completed the 12 months' follow-up in this prospective study...
June 20, 2018: BMC Ophthalmology
Thu Pham, Aung Bajaj, Lorela Berberi, Chengcheng Hu, Sasha Taleban
Background/Aims: To determine the accuracy of identifying ≥6-mm adenomatous polyps during colonoscopy and define its impact on subsequent interval screening. Methods: We conducted a retrospective study of patients who underwent colonoscopies at Banner University Medical Center, Tucson from 2011 to 2015. All patients with ≥6-mm adenomatous polyps based on their colonoscopy report were included. Adenomatous polyps were excluded if they did not meet the criteria...
June 21, 2018: Clinical Endoscopy
Adaobi Okonkwo, Joy Mitra, Gavin S Johnson, Li Li, Wan Mohaiza Dashwood, Muralidhar Hegde, Chen Yue, Roderick H Dashwood, Praveen Rajendran
SCOPE: DNA repair inhibitors have broad clinical applications in tumor types with DNA repair defects, including colorectal cancer. Structural analogs of the anticancer agent sulforaphane (SFN) were investigated as modifiers of histone deacetylase (HDAC) and histone acetyltransferase (HAT) activity, and for effects on DNA damage/repair pertinent to human colorectal cancer. METHODS AND RESULTS: In the polyposis in rat colon (Pirc) model, single oral administration of SFN and structurally-related long-chain isothiocyanates (ITCs) decreased HDAC3 expression and increased pH2AX levels markedly in adenomatous colon polyps, extending our prior observations on HDAC3 inhibition/turnover in cell-based assays...
June 20, 2018: Molecular Nutrition & Food Research
Cristina Azevedo, Jyoti Singh, Nicole Steck, Alexandre Hofer, Felix A Ruiz, Tanya Singh, Henning J Jessen, Adolfo Saiardi
Phenotypes are established by thigh regulation on protein functions. This regulation can be mediated allosterically, through protein binding, and covalently, through post-translational modification (PTM). The integration of an ever-increasing number of PTMs into regulatory networks enable and define the proteome complexity. Protein PTMs can occur enzymatically and non-enzymatically. Polyphosphorylation, a recently discovered PTM that belongs to the latter category, is the covalent attachment of the linear ortho-phosphate polymer called inorganic polyphosphate (polyP) to lysine residues...
June 20, 2018: ACS Chemical Biology
Peel Jung, Su B Park, Hyung W Kim, Dae H Kang, Cheol W Choi, Su J Kim, Hyeong S Nam, Dae G Ryu, Joung B Hong, Dong J Kim
BACKGROUND: Endoscopic inspection of colonic mucosa is disturbed by colonic folds and peristalsis, which may result in missed polyps. Cimetropium bromide, an antispasmodic agent, inhibits peristalsis and colonic spasms, which may improve polyp detection. The purpose of this randomized, double-blind, placebo-controlled study was to investigate whether cimetropium bromide could improve polyp and adenoma detection in the colorectum and right colon. METHODS: Patients undergoing screening or diagnostic colonoscopy were randomized to receive intravenous cimetropium bromide (5 mg) or placebo after cecal intubation...
June 2018: Medicine (Baltimore)
Alessandra Guarini, Francesca De Marinis, Cesare Hassan, Raffaele Manta, Vicenzo De Francesco, Bruno Annibale, Angelo Zullo
BACKGROUND AND AIMS: . The video capsule endoscopy (VCE) is an accurate and validated tool to investigate the entire small bowel mucosa, but VCE recordings interpretation by the gastroenterologist is time-consuming. A pre-reading of VCE recordings by an expert nurse could be accurate and cost saving. We assessed the concordance between nurses and gastroenterologists in detecting lesions on VCE examinations. METHODS: This was a prospective study enrolling consecutive patients who had undergone VCE in clinical practice...
June 2018: Journal of Gastrointestinal and Liver Diseases: JGLD
Darren Rom, Migie Lee, Edward Chandraratnam, Ronald Chin, Niranjan Sritharan
Background Respiratory epithelial adenomatoid hamartomas (REAH) are rare, glandular proliferations of the aerodigestive tract lined by ciliated respiratory epithelium. We report nine cases of REAH and devised a histopathological guide to differentiate these lesions from its main differentials. Methods Patients with biopsy-proven REAH were included in the series. Lesions were removed endoscopically and sent for histopathological analysis. The macroscopic and microscopic features were reviewed. Results Nine patients (age 59 ± 15...
April 17, 2018: Curēus
X Z Li, S C Zhao, X L Cai, Y F Wang, J Chen, X F Ma, H Zhang
This work studies the expression differences of YKL-40 and TLR4 in nasal sinus mucosa of chronic sinusitis patients with and without nasal polyps and its clinical significances. Fifty chronic sinusitis patients with nasal polyps and 50 chronic sinusitis patients without, accepted by our hospital during February 2016-February 2017, were included and taken as group A and group B, respectively. In addition, another 50 patients with nasal deviation were taken as group C (control group). The ostiomeatal complex mucosa of group A and B and the inferior turbinate mucosa of group C were taken and the fluorescence quantitative PCR method was applied to detect the expression of YKL-40, TLR4 and NF- κB of the mucosa and explore and influence of YKL-40 and TLR4 on NF-κB...
May 2018: Journal of Biological Regulators and Homeostatic Agents
Maria Rita Cozzi, Andrea Lauretta, Roberto Vettori, Agostino Steffan
BACKGROUND: Local excision (LE) is currently one of the most effective methods used in cases of large benign polyps, not suitable for endoscopic treatment, or early-stage neoplasms. LE is also alternative to anterior rectal resection in selected patients suffering from major comorbidities and limits for major abdominal procedure. Furthermore, LE results in less pain, reduced impact on bowel function, shorter duration of hospital stay, and lower rates of morbidity, mortality and stoma creation...
June 19, 2018: World Journal of Surgical Oncology
Andriy I Bandos, Nancy A Obuchowski
Diagnostic systems designed to detect possibly multiple lesions per patient (e.g. multiple polyps during CT colonoscopy) are often evaluated in "free-response" studies that allow for diagnostic responses unconstrained in their number and locations. Analysis of free-response studies requires extensions of the traditional receiver operating characteristic (ROC) analysis, which are termed free-response ROC (FROC) methodology. Despite substantial developments in this area, FROC tools and approaches are much more cumbersome than traditional ROC methods...
January 1, 2018: Statistical Methods in Medical Research
X F Yu, H Zhao, Z W Cao
Objective: Analyze the imaging features of respiratory epithelial adenomatoid hamartoma(REAH) of olfactory clefts,to provide the basis for clinical diagnosis and treatment. Method: A retrospective study of 54 cases of nasal REAH of bilateral olfactory clefts confirmed by pathology were collected,analyze their imaging information. Result: All the lesions of 54 cases are located in olfactory cleft,sinus CT and MR show soft tissue shadows in olfactory cleft which grows expansive,extruding bilateral middle turbinate to the lateral sides,and it's like "the head of mushroom"...
June 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
D Z Tan, Y Feng, Y Hu, A H Yan
Objective: The relationship between viral infection and the occurrence of nasal polyps was explored to help us understand the etiology and pathogenesis of nasal polyps, and to provide scientific basis for the prevention and treatment of nasal polyps through a Meta-analysis. Method: By searching Pubmed, Embase, Web of Science, Cochrane Library, CNKI, Wanfang Database, and VIP Database, time starts from database building until January 1, 2018, a comprehensive case-control study on the relationship between human papillomavirus, Epstein-Barr virus (EBV), respiratory virus infection and nasal polyps published at home and abroad has been conducted...
June 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
Hourin Cho, Taiki Hashimoto, Hiroshi Yoshida, Hirokazu Taniguchi, Reiko Ogawa, Taisuke Mori, Nobuyoshi Hiraoka, Yutaka Saito, Shigeki Sekine
AIMS: Sessile serrated adenoma/polyp (SSA/P) is regarded as a genetically homogeneous entity, with most lesions harboring the BRAF V600E mutation. The present study aimed to reappraise the genetic heterogeneity of SSA/Ps and its clinicopathological significance. METHODS AND RESULTS: We performed next-generation sequencing of 272 SSA/Ps without dysplasia and evaluated morphologic and molecular features associated with the respective genotypes. BRAF V600E, BRAF non-V600E, KRAS, and NRAS mutations were found in 223 (82...
June 19, 2018: Histopathology
Nina C A Vermeer, Renu R Bahadoer, Esther Bastiaannet, Fabian A Holman, Elma Meershoek-Klein Kranenbarg, Gerrit-Jan Liefers, Cornelis J H van de Velde, Koen C M J Peeters
AIM: In 2014, a national colorectal cancer (CRC) screening program was launched in the Netherlands. It is difficult to assess for the individual CRC patient whether the oncological benefits of surgery will outweigh the morbidity of the procedure, especially in early lesions. This study compares patient and tumour characteristics between screen-detected and non-screen-detected patients. Secondly, we present an overview of treatment options and clinical dilemmas when treating patients with early stage colorectal disease...
June 19, 2018: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
Yuki Miyasako, Toshio Kuwai, Hiroki Imagawa, Hiroshi Kohno, Sauid Ishaq
No abstract text is available yet for this article.
April 2018: VideoGIE: an official video journal of the American Society for Gastrointestinal Endoscopy
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