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https://www.readbyqxmd.com/read/29248733/esophageal-mucosal-impedance-patterns-discriminate-patients-with-eosinophilic-esophagitis-from-patients-with-gerd
#1
Yash Choksi, Pooja Lal, James C Slaughter, Rohit Sharda, Jacob Parnell, Tina Higginbotham, Michael F Vaezi
BACKGROUND & AIMS: It is a challenge to make a diagnosis of eosinophilic esophagitis (EoE) because its symptoms and histologic features overlap with those of gastroesophageal reflux disease (GERD). A minimally invasive device was recently developed to detect mucosal impedance (MI) that measures epithelial integrity during upper endoscopy. We aimed to quantify MI along the esophagus and identify patterns that differentiated patients with and without GERD from those with EoE, and determine whether MI values and patterns are sufficient to identify patients with EoE using histologic findings as a reference...
December 14, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29235037/expression-and-significance-of-cytokeratin-7-a-squamocolumnar-junction-marker-in-head-and-neck-squamous-cell-carcinoma
#2
Mitra Mehrad, William D Dupont, W Dale Plummer, James S Lewis
The favorable features of high-risk human papillomavirus (HPV) in the head and neck are limited to those harboring transcriptionally-active HPV, which occur predominantly in the oropharynx (OP). Factors rendering the OP susceptible to HPV oncogenesis are largely unexplored. The role of cytokeratin 7 (CK7) in predisposition to HPV and cancer in the cervix has been evaluated. However, its significance in the H&N is unknown. CK7 immunohistochemistry was performed on a tissue microarray cohort of OP and non-oropharyngeal (NOP) squamous cell carcinomas (SCC) with known clinical follow-up and HPV E6/7 mRNA status...
December 12, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29208671/cxcr4-is-a-potential-target-for-diagnostic-pet-ct-imaging-in-barrett-s-dysplasia-and-esophageal-adenocarcinoma
#3
Hsin-Yu Fang, Natasha Stephens Münch, Margret Schottelius, Jonas Ingermann, Haibo Liu, Michael Schauer, Stefan Stangl, Gabriele Multhoff, Katja Steiger, Carlos Gerngroß, Moritz Jesinghaus, Wilko Weichert, Anja A Kühl, Antonia R Sepulveda, Hans-Jürgen Wester, Timothy C Wang, Michael Quante
INTRODUCTION: Barrett's Esophagus (BE) represents an early stage in carcinogenesis leading to esophageal adenocarcinoma (EAC). Considerable evidence supports a major role for chronic inflammation and diverse chemokine pathways in the development of BE and EAC. METHODS: Here we utilized a IL-1b transgenic mouse model of BE and EAC and human patient imaging to analyse the importance of CXCR4 expressing cells during esophageal carcinogenesis. RESULTS: IL-1b overexpression induces chronic esophageal inflammation and recapitulates the progression to BE and EAC...
December 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29093623/presence-of-columnar-lined-esophagus-is-negatively-associated-with-the-presence-of-esophageal-varices-in-japanese-alcoholic-men
#4
Akira Yokoyama, Kenro Hirata, Rieko Nakamura, Tai Omori, Takeshi Mizukami, Junko Aida, Katsuya Maruyama, Tetsuji Yokoyama
AIM: To determine whether the presence of columnar-lined esophagus (CLE) is associated with the presence of esophageal varices (EVs) in male Japanese alcoholics. METHODS: The subjects were 1614 Japanese alcohol-dependent men (≥ 40 years of age) who had undergone upper gastrointestinal endoscopic screening. Digitalized records of high-quality endoscopic images that included the squamocolumnar junction and esophagogastric junction were retrospectively jointly reviewed by four expert endoscopists for the purpose of diagnosing CLE...
October 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28953110/asccp-colposcopy-standards-role-of-colposcopy-benefits-potential-harms-and-terminology-for-colposcopic-practice
#5
Michelle J Khan, Claudia L Werner, Teresa M Darragh, Richard S Guido, Cara Mathews, Anna-Barbara Moscicki, Martha M Mitchell, Mark Schiffman, Nicolas Wentzensen, L Stewart Massad, E J Mayeaux, Alan G Waxman, Christine Conageski, Mark H Einstein, Warner K Huh
OBJECTIVES: The American Society for Colposcopy and Cervical Pathology Colposcopy Standards address the role of and approach to colposcopy and biopsy for cervical cancer prevention in the United States. Working Group 1 was tasked with defining the role of colposcopy, describing benefits and potential harms, and developing an official terminology. METHODS: A systematic literature review was performed. A national survey of American Society for Colposcopy and Cervical Pathology members provided input on current terminology use...
October 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/28859392/long-term-wireless-ph-monitoring-of-the-distal-esophagus-prolonging-the-test-beyond-48-hours-is-unnecessary-and-may-be-misleading
#6
G Capovilla, R Salvador, L Spadotto, G Voltarel, E Pesenti, A Perazzolo, L Nicoletti, S Merigliano, M Costantini
Wireless pH monitoring of the esophagus has been widely used to detect GERD for more than a decade. It is generally well tolerated and accepted by patients, but it is still unclear whether prolonging a recording beyond the usual 48 hours can improve the test's diagnostic value. The aim of this study is to examine the diagnostic yield of 96-hour pH monitoring vis-à-vis 24- and 48-hour tests, and to ascertain whether any gain in diagnostic terms was of genuine clinical utility. Patients with suspected GERD underwent 4-day PPI-off wireless pH monitoring of the distal esophagus...
October 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28857936/brief-report-radiofrequency-ablation-therapy-for-anal-intraepithelial-neoplasia-results-from-a-single-center-prospective-pilot-study-in-hiv-participants
#7
Robert N Goldstone, Shirin R Hasan, Stephen E Goldstone
BACKGROUND: HIV-positive individuals have high incidence of anal high-grade squamous intraepithelial lesions (HSIL) at the squamocolumnar junction (SCJ), which can progress to cancer. Focal radiofrequency ablation (RFA) treats HSIL, but metachronous recurrence remains high and may be improved with circumferential treatment. SETTING: The study was performed at a single center. METHODS: This was a prospective trial of circumferential anal RFA using Barrx 60 RFA focal catheters in participants with ≥1 anal SCJ HSIL...
December 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28720443/squamous-intraepithelial-lesions-of-the-anal-squamocolumnar-junction-histopathological-classification-and-hpv-genotyping
#8
Omar Clavero, Jenny McCloskey, Vicente Marco Molina, Beatriz Quirós, Ignacio G Bravo, Silvia de Sanjosé, F Xavier Bosch, Ville N Pimenoff
BACKGROUND: Human papillomavirus (HPV)-related anal cancer lesions are often found adjacent to the squamocolumnar junction (SCJ). We have assessed the histopathology and associated HPV genotypes in anal SCJ lesions in surgically excised anal warts in HIV-negative and -positive patients. METHODS: Histopathology identified 47 squamous intraepithelial lesions (SILs) adjacent to the SCJ amongst a total of 145 cases of clinically diagnosed anal condylomata. The anal SCJ lesions were further analyzed with p16, CK7 and p63 immunohistochemistry and HPV genotyping...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28687439/subsquamous-intestinal-metaplasia-is-common-in-treatment-na%C3%A3-ve-barrett-s-esophagus
#9
Michael J Bartel, Amitabh Srivastava, Stuart Gordon, Richard I Rothstein, Heiko Pohl
BACKGROUND AND AIMS: Barrett's intestinal metaplasia may extend beneath normal squamous epithelium at the squamocolumnar junction (SCJ) and therefore escape surveillance biopsy sampling. The prevalence of subsquamous intestinal metaplasia (SSIM) in patients undergoing Barrett's esophagus (BE) surveillance is unknown. Our aim was to examine the prevalence and distribution of SSIM proximal to the SCJ in patients undergoing BE surveillance. METHODS: We enrolled consecutive patients with biopsy specimen-proven BE...
July 4, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28639968/defining-the-cervical-transformation-zone-and-squamocolumnar-junction-can-we-reach-a-common-colposcopic-and-histologic-definition
#10
Olaf Reich, Sigrid Regauer, W G McCluggage, Christine Bergeron, Charles Redman
Quality assurance and research in colposcopy and cervical pathology require standardized terminologies and reporting. However, clinical and histologic definitions of the cervical transformation zone (TZ) and squamocolumnar junction (SCJ) vary considerably. We aimed to identify areas of agreement and areas where work is required to standardize the definitions of the TZ and the SCJ. We conducted a survey among the board members of the European Federation of Colposcopy member societies and members of the International Society of Gynecological Pathologists...
November 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28455160/long-term-follow-up-results-of-stepwise-radical-endoscopic-resection-for-barrett-s-esophagus-with-early-neoplasia
#11
Kamar Belghazi, Frederike G I van Vilsteren, Bas L A M Weusten, Sybren L Meijer, Jacques J G H M Bergman, Roos E Pouw
BACKGROUND AND AIMS: Stepwise radical endoscopic resection (SRER) has shown to be effective in eradicating Barrett's esophagus (BE) and its associated dysplasia. The aim of this study was to assess the long-term durability after successful SRER for early Barrett's neoplasia. METHODS: Patients treated with SRER for BE ≤5 cm with high-grade dysplasia (HGD) or early cancer (EC) and who had reached complete eradication of intestinal metaplasia (CE-IM) and neoplasia (CE-neo) were included...
January 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28357377/chlamydia-trachomatis-genital-infections
#12
REVIEW
Catherine M O'Connell, Morgan E Ferone
Etiology, transmission and protection: Chlamydia trachomatis is the leading cause of bacterial sexually transmitted infection (STI) globally. However, C. trachomatis also causes trachoma in endemic areas, mostly Africa and the Middle East, and is a leading cause of preventable blindness worldwide. Epidemiology, incidence and prevalence: The World Health Organization estimates 131 million new cases of C. trachomatis genital infection occur annually. Globally, infection is most prevalent in young women and men (14-25 years), likely driven by asymptomatic infection, inadequate partner treatment and delayed development of protective immunity...
September 5, 2016: Microbial Cell
https://www.readbyqxmd.com/read/28316850/a-report-of-two-cases-of-age-related-changes-in-cervical-morphology-in-postmenopausal-women-with-vaginal-adenosis
#13
Marguerite B Vigliani
This paper presents two cases of women who had extensive vaginal adenosis from prenatal DES exposure, extending almost halfway down the vaginal canal. Both women were followed for decades with annual exams and Pap smears until after menopause. Clinical examination in both cases initially showed an absent pars vaginalis of the cervix, vaginal adenosis, and shallowness of the fornices. Several decades of annual exams showed these stigmata of DES exposure gradually disappear as the upper vagina progressively contracted...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28267445/abdominal-compression-by-waist-belt-aggravates-gastroesophageal-reflux-primarily-by-impairing-esophageal%C3%A2-clearance
#14
David R Mitchell, Mohammad H Derakhshan, Angela A Wirz, Stuart A Ballantyne, Kenneth E L McColl
BACKGROUND & AIMS: Central obesity promotes gastroesophageal reflux, which may be related to increased intra-abdominal pressure. We investigated the effect of increasing abdominal pressure by waist belt on reflux in patients with reflux disease. METHODS: We performed a prospective study of patients with esophagitis (n = 8) or Barrett's esophagus (n = 6); median age was 56 years and median body mass index was 26.8. Proton pump inhibitors were stopped at least 7 days before the study and H2 receptor antagonists were stopped for at least 24 hours before...
June 2017: Gastroenterology
https://www.readbyqxmd.com/read/28212672/cytokeratin7-and-cytokeratin19-expression-in-high-grade-cervical-intraepithelial-neoplasm-and-squamous-cell-carcinoma-and-their-possible-association-in-cervical-carcinogenesis
#15
Hojung Lee, Hyekyung Lee, Yong Kyun Cho
BACKGROUND: High risk human papillomavirus (HR HPV) infects cells at the squamocolumnar junction (SCJ) of the cervix, causing cancer. Cytokeratin (CK)7 is an SCJ marker, and stains cervical neoplasia. CK19 is a binding partner of CK7 and expressed in cervical cancer. Despite this possible association between CK7/CK19 and cervical cancer, not much is known about the mechanism of CK7/CK19 involvement in HR HPV-mediated cervical carcinogenesis. METHODS: We analyzed the expression pattern of CK7, CK19, and p16 by using immunohistochemistry and HPV infection by in situ hybridization in 25 cases of high grade cervical intraepithelial neoplasia (CIN3) and in 30 cases of squamous cell carcinoma (SCC)...
February 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/27872404/unique-cellular-lineage-composition-of-the-first-gland-of-the-mouse-gastric-corpus
#16
Andrew O'Neil, Christine P Petersen, Eunyoung Choi, Amy C Engevik, James R Goldenring
The glandular stomach has two major zones: the acid secreting corpus and the gastrin cell-containing antrum. Nevertheless, a single gland lies at the transition between the forestomach and corpus in the mouse stomach. We have sought to define the lineages that make up this gland unit at the squamocolumnar junction. The first gland in mice showed a notable absence of characteristic corpus lineages, including parietal cells and chief cells. In contrast, the gland showed strong staining of Griffonia simplicifolia-II (GSII)-lectin-positive mucous cells at the bases of glands, which were also positive for CD44 variant 9 and Clusterin...
January 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/27825279/the-normal-squamocolumnar-junction-is-circumferentially-even-and-minimal-irregularities-are-manifestations-of-gastroesophageal-acid-reflux
#17
Mats Guerrero Garcia Hall, Jörgen Wenner, Stefan Öberg
BACKGROUND: The macroscopic appearance of the normal squamocolumnar junction (SCJ) is often described as serrated with short projections of columnar mucosa that extend into the esophagus. As studies of the normal SCJ are sparse, the aim of this study was to test the hypothesis that the normal SCJ is even and that irregularities are manifestations of acid reflux. METHOD: Fifty asymptomatic subjects and 149 patients with symptoms suggestive of gastroesophageal reflux disease underwent endoscopy and 48-h pH monitoring with a pH electrode positioned immediately above the SCJ...
March 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27680604/ck7-immunohistochemistry-as-a-predictor-of-cin1-progression-a-retrospective-study-of-patients-from-the-quadrivalent-hpv-vaccine-trials
#18
RANDOMIZED CONTROLLED TRIAL
Anne M Mills, Cherie Paquette, Tatjana Terzic, Philip E Castle, Mark H Stoler
Cervical high-grade squamous intraepithelial lesion (CIN2-3) is thought to arise from a distinct population of cells at the squamocolumnar junction (SCJ). Immunohistochemical (IHC) biomarkers that characterize the SCJ phenotype, including CK7, have been proposed as tools to separate the subset of low-grade squamous intraepithelial lesions (LSILs) (CIN1) that will progress to high-grade squamous intraepithelial lesion from the majority of cases, which will resolve without further intervention. We conducted a retrospective study of CK7 IHC on adjudicated CIN1 tissue from women in the placebo arm of the quadrivalent human papillomavirus (HPV) vaccine trials...
February 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27663505/the-gastric-acid-pocket-is-attenuated-in-h-pylori-infected-subjects
#19
David R Mitchell, Mohammad H Derakhshan, Angela A Wirz, Clare Orange, Stuart A Ballantyne, James J Going, Kenneth E L McColl
OBJECTIVE: Gastric acid secretory capacity in different anatomical regions, including the postprandial acid pocket, was assessed in Helicobacter pylori positive and negative volunteers in a Western population. DESIGN: We studied 31 H. pylori positive and 28 H. pylori negative volunteers, matched for age, gender and body mass index. Jumbo biopsies were taken at 11 predetermined locations from the gastro-oesophageal junction and stomach. Combined high-resolution pH metry (12 sensors) and manometry (36 sensors) was performed for 20 min fasted and 90 min postprandially...
September 2017: Gut
https://www.readbyqxmd.com/read/27639133/interpretation-of-colposcopy-in-population-based-cervical-screening-services-in-north-eastern-italy-an-online-interregional-agreement-study
#20
Paola Garutti, Paolo Cristiani, Gian P Fantin, Francesco Sopracordevole, Silvano Costa, Patrizia Schincaglia, Alessandra Ravaioli, Priscilla Sassoli de Bianchi, Carlo Naldoni, Stefano Ferretti, Lauro Bucchi
OBJECTIVE: An innovative web-based colposcopy quality assurance programme was implemented in population-based cervical screening services in three north-eastern Italian administrative regions with different colposcopists' training background. In this study, the levels of intra- and interregional intercolposcopist diagnostic agreement were evaluated. STUDY DESIGN: Of the 158 registered colposcopists, 125 accessed the website of the programme, logged-in, viewed a posted set of 50 digital colpophotographs selected by an expert steering committee, and classified them for the colposcopic impression, the visibility of the squamocolumnar junction, and the need for biopsy...
November 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
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