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https://www.readbyqxmd.com/read/28226185/p53-protein-accumulation-predicts-malignant-progression-in-barrett-s-metaplasia-a-prospective-study-of-275-patients
#1
Mamoun Younes, Keith Brown, Gregory Y Lauwers, Gulchin Ergun, Frank Meriano, A Carl Schmulen, Alberto Barroso, Atilla Ertan
AIMS: The purpose of this study was to determine prospectively whether p53 protein accumulation in biopsies of Barrett's metaplasia (BM) is a predictor of malignant progression, without relying on dysplasia grading. METHODS AND RESULTS: Sections of formalin fixed paraffin embedded tissue from the initial biopsies of 275 patients with BM, who had no high grade dysplasia (HGD) or esophageal adenocarcinoma (EAC), were stained for p53 by immunohistochemistry. Mean follow up was 41 months...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28224303/conjunctival-cytologic-features-in-patients-with-unilateral-primary-acquired-nasolacrimal-duct-obstruction
#2
Nilay Yuksel, Melek Mutlu, Aydan Kilicarslan, Emine Akcay
PURPOSE: To evaluate the cytologic features of conjunctival epithelium in patients with unilateral primary acquired nasolacrimal duct obstruction (PANDO) using impression cytology. METHODS: Twenty-four patients with unilateral PANDO for at least 1 year were enrolled in this study. The healthy eyes of the patients are assessed as control group. All patients were subjected to ophthalmic surface examination with conjunctival impression cytology analysis. Squamous metaplasia and goblet cell density were graded according to Nelson grading system...
February 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28223834/bile-salt-receptor-tgr5-is-highly-expressed-in-esophageal-adenocarcinoma-and-precancerous-lesions-with-significantly-worse-overall-survival-and-gender-differences
#3
Chunhong Pang, Amy LaLonde, Tony E Godfrey, Jianwen Que, Jun Sun, Tong Tong Wu, Zhongren Zhou
Bile acid reflux in the esophagus plays an important role in the carcinogenesis of esophageal adenocarcinoma (EAC). The G-protein coupled bile acid receptor (TGR5) has been associated with the development of gastrointestinal cancer. However, little is known regarding the role of TGR5 in esophageal carcinoma and precancerous lesions. We analyzed genomic DNA from 116 EACs for copy number aberrations via Affymetrix SNP6.0 microarrays. The TGR5 gene locus was amplified in 12.7% (14/116) of the EACs. The TGR5 protein expression was also assessed using immunohistochemistry from tissue microarrays, including Barrett's esophagus (BE), low-(LGD) and high-grade dysplasia (HGD), columnar cell metaplasia (CM), squamous epithelium (SE), EAC and squamous cell carcinoma...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28223833/autoimmune-atrophic-gastritis-current-perspectives
#4
REVIEW
Artem Minalyan, Jihane N Benhammou, Aida Artashesyan, Michael S Lewis, Joseph R Pisegna
At present there is no universally accepted classification for gastritis. The first successful classification (The Sydney System) that is still commonly used by medical professionals was first introduced by Misiewicz et al in Sydney in 1990. In fact, it was the first detailed classification after the discovery of Helicobacter pylori by Warren and Marshall in 1982. In 1994, the Updated Sydney System was proposed during the International Workshop on the Histopathology of Gastritis followed by the publication in The American Journal of Surgical Pathology by Dixon et al...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28220687/environmental-factors-seven-gwas-identified-susceptibility-loci-and-risk-of-gastric-cancer-and-its-precursors-in-a-chinese-population
#5
Meng Cai, Shuyang Dai, Wanqing Chen, Changfa Xia, Lingeng Lu, Shuguang Dai, Jun Qi, Minjie Wang, Meilin Wang, Lanping Zhou, Fuhua Lei, Tingting Zuo, Hongmei Zeng, Xiaohang Zhao
Gene-environment interactions may increase gastric cancer (GC) risk. Seven susceptibility loci identified by genome-wide association studies (GWASs) suggest that genetic factors play a role in gastric carcinogenesis. Meanwhile, Helicobacter pylori (H. pylori) infection, smoking, and alcohol drinking are also important environmental factors for gastric cancer. However, studies to explore the role of gene-environment interactions in gastric carcinogenesis, and particularly the relationship between the seven susceptibility loci and their potential interactions with H...
February 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28217843/association-between-gastric-cancer-and-the-kyoto-classification-of-gastritis
#6
Satoki Shichijo, Yoshihiro Hirata, Ryota Niikura, Yoku Hayakawa, Atsuo Yamada, Kazuhiko Koike
BACKGROUND AND AIM: Histological gastritis is associated with gastric cancer, but its diagnosis requires biopsy. Many classifications of endoscopic gastritis are available, but not all are useful for risk stratification of gastric cancer. The Kyoto Classification of Gastritis was proposed at the 85th Congress of the Japan Gastroenterological Endoscopy Society. This cross-sectional study evaluated the usefulness of the Kyoto Classification of Gastritis for risk stratification of gastric cancer...
February 20, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28216934/adrenal-myelolipoma-with-osseous-metaplasia-and-hypercortisolism
#7
Ujwal Kumar, Shivam Priyadarshi, Vinay Tomar, Rishi Raj Vohra
Adrenal myelolipomas are rare adrenal tumors generally diagnosed incidentally. A 42-year-old female reported to us with complaints of left flank pain attributable to her left ureteric calculi. On evaluation, a large adrenal mass was diagnosed along with hypercortisolism. After adrenalectomy, the histopathology revealed adrenal myelolipoma along with osseous metaplasia not reported in English literature, to the best of our knowledge till date.
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216908/role-of-progenitor-cell-producing-normal-vagina-by-metaplasia-in-laparoscopic-peritoneal-vaginoplasty
#8
Pravin N Mhatre, Hemraj R Narkhede, P Amol Pawar, P Jyoti Mhatre, Das Dhanjit Kumar
CONTEXT: Host of vaginoplasty techniques have been described. None has been successful in developing normal vagina. Laparoscopic peritoneal vaginoplasty (LPV) is performed in Mayer-Rokitansky-Küster-Hauser syndrome (MRKHS) culminating in normal vagina. AIMS: This study aims to confirm normal development of neovagina by anatomical and functional parameters of histology, cytology, and ultrasonography (USG) in LPV. To identify peritoneal progenitor cell by OCT4/SOX2 markers...
October 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28216141/encapsulated-follicular-variant-of-papillary-thyroid-carcinoma-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-with-spindle-cell-metaplasia-case-report-and-review-of-literature
#9
Mohamed Rizwan Haroon Al Rasheed, Andres Acosta, Gabor Tarjan
Spindle cell lesions of the thyroid are rare overall, and span a wide clinical spectrum that ranges from spindle cell metaplasia (SCM(1)) to anaplastic carcinoma. Their differentiation is only seldom straightforward, and usually requires the integration of the clinical, histological and immunohistochemical data. Only a handful of publications have described cases of SCM in the thyroid and we add to that literature by reporting a unique case of encapsulated follicular variant of papillary thyroid carcinoma/noninvasive follicular thyroid neoplasm with papillary-like nuclear features with SCM...
January 5, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28216140/expression-profiles-of-cancer-stem-cell-markers-cd133-cd44-musashi-1-and-epcam-in-the-cardiac-mucosa-barrett-s-esophagus-early-esophageal-adenocarcinoma-advanced-esophageal-adenocarcinoma-sequence
#10
Anna Mokrowiecka, Lothar Veits, Christina Falkeis, Jacek Musial, Radzislaw Kordek, Mariusz Lochowski, Jozef Kozak, Agnieszka Wierzchniewska-Lawska, Michael Vieth, Ewa Malecka-Panas
INTRODUCTION: Barrett's esophagus (BE), which develops as a result of gastroesophageal reflux disease, is a preneoplastic condition for esophageal adenocarcinoma (EAC). A new hypothesis suggests that cancer is a disease of stem cells, however, their expression and pathways in BE - EAC sequence are not fully elucidated yet. AIMS: We used a panel of putative cancer stem cells markers to identify stem cells in consecutive steps of BE-related cancer progression. METHODS: Immunohistochemistry was performed on formalin-fixed, paraffin-embedded blocks from 58 patients with normal cardiac mucosa (n=5), BE (n=14), early EAC (pT1) from mucosal resection (n=17) and advanced EAC (pT1-T4) from postoperative specimens (n=22)...
December 30, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28216138/clinicopathologic-characteristics-of-young-patients-with-gallbladder-cancer
#11
Sung-Im Do, Hyoun Wook Lee, Jin Hee Sohn, Kyungeun Kim
Gallbladder cancer is the most common biliary tract cancer and the fifth most common cancer of the digestive system. However, the clinicopathologic features of gallbladder cancer in young Korean patients have not been studied. This study included 101 consecutive cases of gallbladder cancer that underwent cholecystectomy at Kangbuk Samsung Hospital from December 1990 to March 2011. The patients were divided into two groups by age at initial diagnosis of gallbladder cancer: a young patient group aged less than 45 years and an old patient group aged 45 or older...
December 29, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28212604/high-expression-of-claudin-2-in-esophageal-carcinoma-and-precancerous-lesions-is-significantly-associated-with-the-bile-salt-receptors-vdr-and-tgr5
#12
Sohaib Abu-Farsakh, Tongtong Wu, Amy Lalonde, Jun Sun, Zhongren Zhou
BACKGROUND: Claudins are a family of integral membrane proteins and are components of tight junctions (TJs). Many TJ proteins are known to tighten the cell structure and maintain a barrier. Claudin-2 forms gated paracellular channels and allows sodium ions and other small positively charged ions to cross between adjacent cells. Recently, we found that vitamin D receptor (VDR) enhanced Claudin-2 expression in colon and that bile salt receptors VDR and Takeda G-protein coupled receptor5 (TGR5) were highly expressed in esophageal adenocarcinoma (EAC) and precancerous lesions...
February 17, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28207927/attenuated-airway-hyperresponsiveness-and-mucus-secretion-in-hdm-exposed-igf1r-deficient-mice
#13
S Piñeiro-Hermida, J A Gregory, I P López, R Torrens, C Ruíz-Martínez, M Adner, J G Pichel
BACKGROUND: Asthma is a common chronic lung disease characterized by airflow obstruction, airway hyperresponsiveness (AHR) and inflammation. IGFs have been reported to play a role in asthma but little is known about how the Insulin-like Growth Factor 1 Receptor (IGF1R) affects asthma pathobiology. METHODS: Female Igf1r-deficient and control mice were intranasally challenged with house dust mite (HDM) extract or PBS five days per week for four weeks. Lung function measurements, and bronchioalveolar lavage fluid (BALF), serum and lungs were collected on day 28 for further cellular, histological and molecular analysis...
February 16, 2017: Allergy
https://www.readbyqxmd.com/read/28206968/intratumoral-lactate-metabolism-in-barrett-s-esophagus-and-adenocarcinoma
#14
Heikki Huhta, Olli Helminen, Sami Palomäki, Joonas H Kauppila, Juha Saarnio, Petri P Lehenkari, Tuomo J Karttunen
BACKGROUND: Monocarboxylate transporters (MCTs) are cell membrane proteins which transport pyruvate, lactate and ketone bodies across the plasma membrane. MCTs are activated in various cancers, but their expression in esophageal adenocarcinoma is not known. The present study was conducted to elucidate the expression of MCTs in esophageal adenocarcinoma and its precursor lesions. RESULTS: Cytoplasmic MCT1, MCT4 and MTCO1 expression linearly increased from normal epithelium to Barrett's mucosa to dysplasia and cancer...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28206938/a-review-of-sleeve-gastrectomy-specimen-histopathology
#15
Luke A Kinsinger, James C Garber, Oliver Whipple
With the increasing popularity of sleeve gastrectomy, many stomach specimens are being evaluated. Understanding the significance and treatment for unexpected pathology is important. This study examines the incidence of relevant histopathology of sleeve gastrectomy specimens. It evaluates previous data for each histopathology and provides recommendations for treatment. In this study, a retrospective review was performed for 241 patients who underwent sleeve gastrectomy from 2009 to 2014 at a single institution...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28206729/gut-microbiota-and-gastric-disease
#16
Dolores Sgambato, Agnese Miranda, Lorenzo Romano, Marco Romano
The gut microbiota may be considered a crucial "organ" of human body because of its role in the maintenance of the balance between health as well as disease. It is mainly located in the small bowel and colon, while, the stomach was long thought to be sterile in particular for its high acid production. In particular, stomach was considered "an hostile place" for bacterial growth until the identification of Helicobacter pylori (HP). Now, the stomach and its microbiota can be considered as two different "organs" that share the same place and they have an impact on each other...
15, 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28205730/p-35-gastric-metaplasia-in-patients-with-esophageal-atresia-tracheo-esophageal-fistula-ea-tef-aged-less-than-10-years
#17
H H Hsieh, A Frenette, A Aspirot, C Faure
No abstract text is available yet for this article.
April 1, 2016: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28205719/p-27-development-of-intestinal-metaplasia-in-children-with-esophageal-atresia-tracheoesophageal-fistula
#18
H H Hsieh, A Frenette, A Aspirot, C Faure
No abstract text is available yet for this article.
April 1, 2016: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28205007/long-term-evaluation-of-biliary-reflux-after-experimental-one-anastomosis-gastric-bypass-in-rats
#19
Matthieu Bruzzi, Henri Duboc, Caroline Gronnier, Dominique Rainteau, Anne Couvelard, Maude Le Gall, André Bado, Jean-Marc Chevallier
BACKGROUND: Controversy remains regarding biliary reflux after one-anastomosis gastric bypass (OAGB). The aim of this "pilot" study was to analyze biliary reflux and its potential long-term consequences on esogastric mucosae in OAGB-operated rats. METHODS: Diet-induced obese rats were subjected to OAGB (n = 10) or sham (n = 4) surgery and followed up for 16 weeks. Evolution of weight and glucose tolerance was analyzed. Bile acid concentration measurement, histological and qRT-PCR analysis were performed in the esogastric segments...
February 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28203173/squamous-cell-carcinoma-of-the-anal-transitional-zone-after-ileal-pouch-surgery-for-ulcerative-colitis-systematic-review-and-treatment-perspectives
#20
Gianluca Pellino, Christos Kontovounisios, Diana Tait, John Nicholls, Paris P Tekkis
BACKGROUND: Few cases of pouch-related cancers have been reported in ulcerative colitis (UC), and squamous cell carcinoma (SCC) is very rare. METHOD: A systematic review of the literature was performed to identify all unequivocal cases of pouch-related SCC in UC patients. RESULTS: Eight cases of SCC developing after ileal pouch-anal anastomosis (IPAA) have been observed since 1978. Two arose from the pouch mucosa and 6 from below. The pooled cumulative incidence of SCC is below 0...
January 2017: Case Reports in Oncology
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