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Stella Arelaki, Athanasios Arampatzioglou, Konstantinos Kambas, Efthimios Sivridis, Alexandra Giatromanolaki, Konstantinos Ritis
Inflammation is a hallmark of colorectal cancer (CRC). Neutrophils are well-known mediators in tumor biology but their role in solid tumors, including CRC, was redefined by neutrophil extracellular traps (NETs). Given that it was recently demonstrated that platelet-derived polyP primes neutrophils to release NETs, we examined surgical specimens from CRC to investigate the presence of polyP, as a possible NET inducer. Biopsies with adenomas, hyperplastic polyps, inflammatory bowel disease and healthy colon tissues were used as controls...
2018: PloS One
Cristina Remondi, Francesco Sesti, Giuseppe Sorrenti, Giovannella Venezia, Roberto Sorge, Adalgisa Pietropolli, Beatrice Silvi, Emilio Piccione
OBJECTIVE: The aim of this study was to compare 22 Fr unipolar resectoscope with the traditional 26 Fr unipolar resectoscope in endometrial polypectomy performed under paracervical block anesthesia. METHODS: The trial took place in Gynecologic Unit, Department of Surgery, Tor Vergata University Hospital, Rome. Inclusion criteria were: diagnosis of endometrial polyps <3 cm at office hysteroscopy; agreement of patients to perform surgery under paracervical block anesthesia but not in office setting...
March 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Tianyu Liu, Duochen Jin, Samiullah Khan, Xue Chen, Tao Shi, Wenxiao Dong, Yanrong Qi, Zixuan Guo, Bangmao Wang, Hailong Cao
OBJECTIVE: A growing body of evidence indicates that patients with colorectal serrated lesions especially advanced serrated lesions (ASLs) are at risk of subsequent malignancy. This study aimed to provide more information for endoscopists for the management of ASLs by analyzing the clinicopathological features of ASLs, and the association between the presence of ASL and synchronous advanced colorectal neoplasia (sACN) in China. METHODS: We performed a retrospective cross-sectional study of data from 38,981 symptomatic patients who underwent colonoscopy between January 2010 and March 2016...
March 15, 2018: Journal of Digestive Diseases
Weihong Wang, Lu Xu, Zhenfei Bao, Linyin Sun, Chunyan Hu, Feng Zhou, Lei Xu, Dingmei Shi
OBJECTIVES: This study aims to evaluate whether the participation of an experienced endoscopy nurse in colonoscopy increases the polyp detection rate (PDR) and adenoma detection rate (ADR) of experienced colonoscopists. METHODS: This study was a randomized controlled trial. Patients were randomly assigned to the experienced colonoscopist alone (single observer) group, or experienced nurse participation (dual observer) group. The primary outcome was the PDR and ADR...
March 14, 2018: International Journal of Colorectal Disease
Lars Kullmann, Michael P Krahn
The tumor suppressor LKB1 is an essential serine/threonine kinase, which regulates various cellular processes such as cell metabolism, cell proliferation, cell polarity, and cell migration. Germline mutations in the STK11 gene (encoding LKB1) are the cause of the Peutz-Jeghers syndrome, which is characterized by benign polyps in the intestine and a higher risk for the patients to develop intestinal and extraintestinal tumors. Moreover, mutations and misregulation of LKB1 have been reported to occur in most types of tumors and are among the most common aberrations in lung cancer...
March 15, 2018: Oncogene
Silvia Paggi, Giuseppe Mogavero, Arnaldo Amato, Emanuele Rondonotti, Alida Andrealli, Gianni Imperiali, Nicoletta Lenoci, Giovanna Mandelli, Natalia Terreni, Francesco Simone Conforti, Dario Conte, Giancarlo Spinzi, Franco Radaelli
BACKGROUND:  Linked color imaging (LCI) is a newly developed image-enhancing endoscopy technology that provides bright endoscopic images and increases color contrast. We investigated whether LCI improves the detection of neoplastic lesions in the right colon when compared with high definition white-light imaging (WLI). METHODS:  Consecutive patients undergoing colonoscopy were randomized (1:1) after cecal intubation into right colon inspection at first pass by LCI or by WLI...
March 14, 2018: Endoscopy
Amirhossein Mafi, Srinivas Abbina, Manu Thomas Kalathottukaren, James H Morrissey, Charles Haynes, Jayachandran N Kizhakkedathu, Jim Pfaendtner, Keng C Chou
Inorganic polyphosphate (polyP) released by human platelets has recently been shown to activate blood clotting and identified as a potential target for the development of novel antithrombotics. Recent studies have shown that polymers with cationic binding groups (CBGs) inhibit polyP and attenuate thrombosis. However, a good molecular-level understanding of the binding mechanism is lacking for further drug development. While molecular dynamics (MD) simulation can provide molecule-level information, the time scale required to simulate these large biomacromolecules makes classical MD simulation impractical...
March 14, 2018: Biomacromolecules
Thierry Baussant, Marianne Nilsen, Elisa Ravagnan, Stig Westerlund, Sreerekha Ramanand
This study aimed at providing confidence in the predictability of the impacts of drill cuttings (DC) discharge on the cold-water coral Lophelia pertusa. L. pertusa was exposed to DC from offshore exploration in the lab with the goal to assess precautionary thresholds of effects. Two exposure scenarios with DC were tested: a long-term (LT) pulsed exposure (12 weeks, peak concentrations: 2-50 mg/L, mean concentrations: 1-25 mg/L) and a short-term (ST) continuous exposure (2.5 weeks, mean concentrations: 4-42 mg/L)...
March 14, 2018: Journal of Toxicology and Environmental Health. Part A
Sung-Ho Shin, Hyun Seok, Seong-Gon Kim, Seong-Doo Hong
Sinonasal mucosal melanoma (SNMM) in the maxillary sinus is a rare disease condition. Compared to oral mucosal melanoma, SNMM has a bulky, exophytic, and polypoid appearance, is weakly pigmented, and associated with unspecific symptoms. Due to these features, SNMM in the maxillary sinus has been misdiagnosed as nasal polyps and chronic sinusitis. In this case report, we described SNMM occurring in the right maxillary sinus simulated as a cystic or benign lesion. Cortical bone thinning and expansion were observed around the mass...
February 2018: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Giuseppe Brescia, Daniela Parrino, Lorenzo Nicolè, Claudia Zanotti, Cristiano Lanza, Umberto Barion, Filippo Marino, Gino Marioni
PURPOSE: The term aspirin-exacerbated respiratory disease (AERD) refers to a combination of asthma, chronic rhinosinusitis with nasal polyposis (CRSwNP), and acute respiratory tract reactions to nonsteroidal anti-inflammatory drugs. AERD has now been included among the CRSwNP endotypes, and is considered one of the most aggressive in terms of disease recurrence. Cortactin is a multi-domain protein with a part in several cellular mechanisms involving actin assembly and cytoskeleton arrangement...
March 5, 2018: American Journal of Otolaryngology
Rajesh Kumar Wadhwa, Aisha Nazeer, Ayesha Aslam Rai, Nasir Hassan Luck
OBJECTIVES: We investigated the incidence of gastrointestinal disorders requiring endoscopic and histopathologic diagnoses in renal transplant recipients. MATERIALS AND METHODS: In this retrospective analysis, we examined records of patients seen at the Department of Hepato-Gastroenterology and Transplantation Sciences, Sindh Institute of Urology and Trans?lantation (Karachi, Pakistan) from January 2010 to December 2014. Renal transplant recipients with gastrointestinal disorders who required endoscopy, including proctoscopy and upper and lower gastrointestinal endoscopy as per indication, were included...
March 9, 2018: Experimental and Clinical Transplantation
Haruhiko Shiiya, Yasuhiro Suzuki, Shigeo Yamazaki, Kichizo Kaga
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) can be associated with life-threatening complications such as paradoxical embolization, cerebral abscess, and hemothorax. Therefore, all adults with PAVMs should be offered treatment. Percutaneous transcatheter embolization is the first-line treatment, but 5-25% of cases require further treatment due to persistence after embolization. Recently, the role of minimally invasive thoracic surgery as a definitive treatment has been evaluated...
March 12, 2018: Surgical Case Reports
N K Khairuddin, H Salina, B S Gendeh, A K Wan Hamizan, V J Lund
OBJECTIVE: To assess the quality of life (QoL) and recurrence of disease in patients with eosinophilic (ECRSwNP) and non-eosinophilic chronic rhinosinusitis with nasal polyposis (non-ECRSwNP) post endoscopic sinus surgery (ESS). METHODOLOGY: A cross-sectional comparative study was carried out in the Otorhinolaryngology - HNS Department, Universiti Kebangsaan Malaysia Medical Center (UKMMC). Subjective assessments of nasal symptoms and quality of life (QoL) using SNOT-22 and Visual Analogue Scale (VAS) and objective endoscopic assessment was undertaken using a modified Hadley endoscopic examination...
February 2018: Medical Journal of Malaysia
A Tardieu, F Sire, T Gauthier
OBJECTIVE: To provide clinical practice guidelines from the French college of obstetrics and gynecology (CNGOF) with the Haute Autorité de santé (HAS), based on the best evidence available, concerning the diagnosis accuracy of endoscopy (laparoscopy, hysteroscopy, fertiloscopy, cystoscopy, colonoscopy) in case of endometriosis. MATERIAL AND METHODS: English and French review of literature about the diagnosis accuracy of endoscopy in case of endometriosis. RESULTS AND CONCLUSION: Laparoscopy is useful in case of suspected endometriosis in patients with symptoms or infertility when appropriate preoperative assessment is negative (grade C)...
March 9, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
Douglas K Rex, Alessandro Repici, Seth A Gross, Cesare Hassan, Prasanna L Ponugoti, Jonathan R Garcia, Heather M Broadley, Jack C Thygesen, Andrew W Sullivan, William W Tippins, Samuel A Main, George J Eckert, Krishna C Vemulapalli
BACKGROUND: Devices used to improve polyp detection during colonoscopy have seldom been compared with each other. METHODS: We performed a 3-center prospective randomized trial comparing high-definition (HD) forward-viewing colonoscopy alone to HD with Endocuff to HD with EndoRings to the Full Spectrum Endoscopy (FUSE) system. Patients were age ≥50 years and had routine indications and intact colons. The study colonoscopists were all proven high-level detectors...
March 9, 2018: Gastrointestinal Endoscopy
Daisaku Fujimoto, Naoki Muguruma, Koichi Okamoto, Yasuteru Fujino, Kaizo Kagemoto, Yasuyuki Okada, Yoshifumi Takaoka, Yasuhiro Mitsui, Shinji Kitamura, Tetsuo Kimura, Hiroshi Miyamoto, Yoshimi Bando, Tomoko Sonoda, Tetsuji Takayama
Background and study aims:  Although new image-enhanced endoscopy (IEE) technologies such as blue laser imaging (BLI), BLI-bright, and linked color imaging (LCI) have been developed, their utility for the detection of sessile serrated adenoma/polyps (SSA/Ps) is still unclear. This study aimed to evaluate the utility of BLI, BLI-bright, and LCI for SSA/P detection in still image examinations and in a prospective randomized controlled trial (RCT). Patients and methods:  A group of 6 expert and non-expert endoscopists read 200 endoscopic still images containing SSA/P lesions using white light image (WLI), BLI, BLI-bright, and LCI...
March 2018: Endoscopy International Open
Fang Gu, Huanxiao Zhang, Simin Ruan, Jiamin Li, Xinyan Liu, Yanwen Xu, Canquan Zhou
OBJECTIVE: To compare the incidence of recurrence between a cohort with a high number (≥6) of endometrial polyps (EPs) and a single-EP cohort among reproductive-age patients after polypectomy. DESIGN: Prospective observational cohort study. SETTING: Single university center. PATIENT(S): Premenopausal women who underwent hysteroscopic endometrial polypectomy were recruited. INTERVENTION(S): Patients underwent a transvaginal ultrasound scan every 3 months after polypectomy to detect EP recurrence...
March 7, 2018: Fertility and Sterility
Jin-Sung Yuk, Ji-Yeon Shin, Hye-Sung Moon, Jung Hun Lee
OBJECTIVE: The objective of this study was to investigate the incidence of unexpected uterine malignancy (UUM) diagnosed after hysteroscopic surgery for presumed submucosal leiomyomas or endometrial polyps. STUDY DESIGN: From the Korean national health insurance database between January 1, 2009 and December 31, 2015, we analyzed inpatient sample data that were extracted by a stratified random sampling (gender and age) method. We extracted women with or without UUM that was diagnosed after hysteroscopic surgery using diagnosis codes and procedure codes...
March 3, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Francisco Javier García-Alonso, Isabel Manzano Santamaría, Antonio Guardiola Arévalo, Rubén Pique Becerra, Amanda Leandro Barros, Noelia de Sande Rivera, Guillermo Moreno Casas, Silvia Arribas Terradillos, Álvaro Llerena Riofrío, Cristian Aitor Escolano Peco, Emma Alguacil Rodríguez, Fernando Bermejo
BACKGROUND AND AIMS: Accurate optical diagnosis of diminutive polyps would allow implementing a resect and discard strategy. We evaluated the learning curve of a single training session followed by self-education in subjects with no endoscopic experience. METHODS: Learning curves were evaluated in 38 subjects employing learning curve-cumulative summation (LC-CUSUM) tests, with each participant attending one training session regarding narrow band imaging and optical diagnosis and then individually assessing 100 lesions, receiving feedback after each diagnosis...
March 9, 2018: Digestive Diseases and Sciences
Michelle Kwok, Guy D Eslick
OBJECTIVE: Professional singers are more likely to develop laryngeal pathologies and symptoms associated with misuse and overuse of the voice. However, different studies have shown conflicting evidence. We aim to perform a systematic review and quantitative meta-analysis to determine the prevalence and risk of laryngeal pathologies and symptoms among professional singers. METHODS: Four electronic databases (MEDLINE, PubMed, EMBASE, and CINAHL) were searched, with no language restrictions...
March 6, 2018: Journal of Voice: Official Journal of the Voice Foundation
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