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https://www.readbyqxmd.com/read/29785394/notch-signaling-pathway-is-inhibited-in-the-development-of-barrett-s-esophagus-an-in-vivo-and-in-vitro-study
#1
Yun-Cang Wang, Zhi-Qiang Wang, Yong Yuan, Tao Ren, Peng-Zhi Ni, Long-Qi Chen
Objective: To explore the role of Notch signaling in the development of Barrett's esophagus. Methods: Patients with esophagectomy and gastric interposition were recruited as a human model of gastroesophageal reflux disease. The expressions of Notch signaling genes in normal esophagus from surgical specimen and columnar metaplasia in the esophageal remnant after esophagectomy were evaluated by real time quantitative Polymerase Chain Reaction (RT-qPCR) and immunohistochemistry (IHC)...
2018: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29783927/length-of-barrett-s-segment-predicts-failure-of-eradication-in-radiofrequency-ablation-for-barrett-s-esophagus-a-retrospective-cohort-study
#2
Tyler Luckett, Chaitanya Allamneni, Kevin Cowley, John Eick, Allison Gullick, Shajan Peter
BACKGROUND: We aim to investigate factors that may contribute to failure of eradication of dysplastic Barrett's Esophagus among patients undergoing radiofrequency ablation treatment. METHODS: A retrospective review of patients undergoing radiofrequency ablation for treatment of Barrett's Esophagus was performed. Data analyzed included patient demographics, medical history, length of Barrett's Esophagus, number of radiofrequency ablation sessions, and histopathology...
May 21, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29783802/-clinicopathologic-and-molecular-features-of-cribriform-morular-variant-of-papillary-thyroid-carcinoma
#3
X J Cui, H O Zhao, P Su, J Chen, R Y Zhang, Y Pan, X M Ouyang, J Liu, J Q Zhang, Y Yang, R Yang, L Ding, Z Y Liu
Objective: To investigate the clinicopathologic and molecular features of the rare cribriform morular variant of papillary thyroid carcinoma (CMV-PTC). Methods: The clinicopathologic data of 10 patients with CMV-PTC were retrospectively reviewed. Immunohistochemical (IHC) staining was done using LSAB method. DNA sequencing for APC were applied using Sanger method. BRAF V600E mutation was examined using ARMS method. The cytological, morphological, IHC and molecular features were analyzed. Results: All patients were female at an average age of 27 years old...
May 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29778607/cost-effectiveness-of-gastric-cancer-screening-according-to-race-and-ethnicity
#4
Monica Saumoy, Yecheskel Schneider, Nicole Shen, Michel Kahaleh, Reem Z Sharaiha, Shailja C Shah
BACKGROUND & AIMS: There are marked racial and ethnic differences in noncardia gastric cancer prevalence within the United States (US). Although gastric cancer screening is recommended in regions of high prevalence, screening is not routinely performed in the US. Our objective was to determine whether selected noncardia gastric cancer screening for high-risk races and ethnicities within the US is cost effective. METHODS: We developed a decision analytic Markov model with the base case of a 50-year-old person of non-Hispanic white, non-Hispanic black, Hispanic, or Asian race or ethnicity...
May 17, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29778551/differences-of-risk-factors-and-clinical-presentations-in-male-and-female-taiwanese-individuals-with-barrett-s-esophagus
#5
Shou-Wu Lee, Han-Chung Lien, Chi-Sen Chang, Chung-Hsin Chang, Chung-Wang Ko, Hong-Zen Yeh
BACKGROUND: Barrett's esophagus (BE) is a disorder more often found in obese men. Differences between the two genders are not known in the Asian countries. Here, we studied their gender differences in the Taiwanese population in terms of risk factors and clinical presentations. METHODS: Data from Taichung Veteran General Hospital were prospectively collected during an approximately two year-period (October 2012 to December 2014). Patients all underwent endoscopic surveillance, and BE was diagnosed based on the typical pattern of intestinal metaplasia...
May 16, 2018: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29777405/ability-of-blue-laser-imaging-with-magnifying-endoscopy-for-the-diagnosis-of-gastric-intestinal-metaplasia
#6
Honglei Chen, Yanan Liu, Yi Lu, Xutao Lin, Qiuning Wu, Jiacheng Sun, Chujun Li
We aimed to determine the utility of blue laser imaging (BLI) with magnifying endoscopy (BLI-ME) for the prediction and diagnosis of gastric intestinal metaplasia (GIM). Participants, aged between 40 and 75 years, undergoing gastroscopy from January to April 2017 were included in this study. The ability of BLI-ME and white light endoscopy (WLE) to detect GIM was assessed by comparing the endoscopic findings with the histological findings. The correlation between the grades of light blue crest (LBC) appearance and histology grade of GIM was calculated...
May 18, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29775897/the-gastric-mucosal-protective-effects-of-astragaloside-iv-in-mnng-induced-gpl-rats
#7
Tiantian Cai, Chengzhe Zhang, Ziming Zhao, Siyi Li, Haobin Cai, Xiaodong Chen, Dake Cai, Wei Liu, Yan Yan, Kaifeng Xie, Huafeng Pan, Xiaohui Zeng
Gastric Cancer is one of the most common types of cancer. And the occurrence of gastric carcinoma is an evolutionary histopathological stage. As a result, further research of GPL, which is a borderline of gastric cancer, is indispensable for preventing the formation and development of gastric carcinoma. Several studies have demonstrated a correlation between the expression of autophagy, apoptosis and Gastric cancer (GC). However, the effects of autophagy and apoptosis on human gastric cancer progression, particularly on gastric precancerous lesions (GPL), have not totally been investigated...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29775647/exposure-to-imipenem-cilastatin-causes-nephrotoxicity-and-even-urolithiasis-in-wistar-rats
#8
Amal Tahri, Amina Lahyani, Rim Kallel, Fatma Ayadi, Tahia Boudawara, Zouheir Sahnoun
Imipenem/cilastatin is a broad-spectrum β-lactam antibiotic used to treat several bacterial infections. The present study was designed to validate the nephrotoxic effect of this drug in rats and to explore its potentional urolithiatic effect. Thirty two Wistar rats were randomly divided into four groups: three experimental groups treated with different imipenem/cilastatin dosages (30, 50 and 80 mg/kg/day) and a control group.The experimental groups were given intraperitoneal imipenem/cilastatin injections twice daily for 7 days, and the control group was given intraperitoneal vehicle NaCl 0...
May 17, 2018: Toxicology
https://www.readbyqxmd.com/read/29773884/pathologic-features-and-expression-of-heat-shock-protein-47-in-the-nasal-mucosa-and-lacrimal-sac-does-it-influence-the-surgical-outcome-of-endoscopic-endonasal-dacryocystorhinostomy
#9
Jinhwan Park, Joonsik Lee, Sehyun Baek
PURPOSE: To correlate the pathologic features and heat shock protein 47 (HSP47) expression in the nasal mucosa and lacrimal sac with the surgical outcomes of endoscopic endonasal dacryocystorhinostomy (EDCR). METHODS: Specimens of the nasal mucosa and lacrimal sac over the rhinostomy site were collected during the operation. Haematoxylin-eosin and immunohistochemical staining were performed to determine the pathologic features (inflammation, fibrosis, squamous metaplasia) and the expression of HSP47 in the epithelium and sub-epithelial glands of the nasal mucosa and lacrimal sac...
May 18, 2018: Eye
https://www.readbyqxmd.com/read/29772698/a-case-control-study-of-the-association-between-vitamin-d-levels-and-gastric-incomplete-intestinal-metaplasia
#10
Kevin Singh, Soren Gandhi, Raffat Batool
Aim : Low circulating vitamin D levels are associated with gastric adenocarcinoma, but whether vitamin D levels are associated with premalignant gastric mucosal changes is unknown. Here, we determined associations between vitamin D levels and gastric incomplete intestinal metaplasia, a known gastric adenocarcinoma risk factor. Methods : This was a retrospective, unmatched, case-control study comparing serum 25-hydroxyvitamin D levels among subjects with gastric incomplete intestinal metaplasia (cases; n = 103) and those without gastric incomplete intestinal metaplasia (controls; n = 216)...
May 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29771269/upper-gastrointestinal-alterations-in-kidney-transplant-candidates
#11
João Pedro Homse Netto, João Pedro Sant'Anna Pinheiro, Mariana Lopes Ferrari, Mirella Tizziani Soares, Rogério Augusto Gomes Silveira, Mariana Espiga Maioli, Vinicius Daher Alvares Delfino
INTRODUCTION: The incidence of gastrointestinal disorders among patients with chronic kidney disease (CKD) is high, despite the lack of a good correlation between endoscopic findings and symptoms. Many services thus perform upper gastrointestinal (UGI) endoscopy on kidney transplant candidates. OBJECTIVES: This study aims to describe the alterations seen on the upper endoscopies of 96 kidney-transplant candidates seen from 2014 to 2015. METHODS: Ninety-six CKD patients underwent upper endoscopic examination as part of the preparation to receive kidney grafts...
May 14, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29770852/notch-inhibition-counteracts-paneth-cell-death-in-absence-of-caspase-8
#12
M K Jeon, E Kaemmerer, U Schneider, M Schiffer, C Klaus, J Hennings, T Clahsen, T Ackerstaff, M Niggemann, A Schippers, T Longerich, G Sellge, C Trautwein, N Wagner, C Liedtke, N Gassler
Opposing activities of Notch and Wnt signaling regulate mucosal barrier homeostasis and differentiation of intestinal epithelial cells. Specifically, Wnt activity is essential for differentiation of secretory cells including Wnt3-producing Paneth cells, whereas Notch signaling strongly promotes generation of absorptive cells. Loss of caspase-8 in intestinal epithelium (casp8∆int ) is associated with fulminant epithelial necroptosis, severe Paneth cell death, secondary intestinal inflammation, and an increase in Notch activity...
May 16, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29770171/risk-of-gastric-cancer-development-after-eradication-of-helicobacter-pylori
#13
REVIEW
Ka-Shing Cheung, Wai K Leung
Helicobacter pylori ( H. pylori ) infection is the most important risk factor for gastric cancer (GC) development through the Correa's gastric carcinogenesis cascade. However, H. pylori eradication alone does not eliminate GC, as pre-neoplastic lesions (atrophic gastritis, intestinal metaplasia and dysplasia) may have already developed in some patients. It is therefore necessary to identify patients at high-risk for gastric cancer after H. pylori eradication to streamline the management plan. If the patients have not undergone endoscopy with histologic assessment, the identification of certain clinical risk factors and non-invasive testing (serum pepsinogen) can predict the risk of atrophic gastritis...
May 15, 2018: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29769188/sturge-weber-syndrome-associated-glaucoma-and-intraocular-osseous-metaplasia-a-unique-complicated-case
#14
Dmytro Pavlenko, Tetiana Scovpen, Oksana Vitovska
A 30-year-old European man was admitted to our centre complaining about severe pain of the right eye (OD) and right part of the face, redness and no vision of the OD. He had an 18-year history of secondary to Sturge-Weber syndrome glaucoma, 6-month history of red eye and 1-week history of pain in OD. The best-corrected visual acuity was no light perception OD and 20/20 OS. Intraocular pressure was 36 mm Hg OD. Examination revealed endophthalmitis, Sturge-Weber syndrome-associated glaucoma and complicated cataract of OD...
May 16, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29766388/molecular-evolution-of-metaplasia-to-adenocarcinoma-in-the-esophagus
#15
REVIEW
William M Grady, Ming Yu
Esophageal adenocarcinoma (EAC) develops from Barrett's esophagus (BE), a condition where the normal squamous epithelia is replaced by specialized intestinal metaplasia in response to chronic gastroesophageal acid reflux. In a minority of individuals, BE can progress to low- and high-grade dysplasia and eventually to intra-mucosal and then invasive carcinoma. BE provides researchers with a unique model to characterize the process by which a carcinoma arises from its precursor lesion. Molecular studies of BE have demonstrated that it is not simply a metaplastic tissue, but rather it harbors frequent alterations that are also present in dysplastic BE and in EAC...
May 15, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29756292/primary-intestinal-type-adenocarcinoma-of-the-oral-tongue-case-report-and-review-of-histologic-origin-and-oncologic-management
#16
Jenna Berg, Rodolfo E Manosalva, Andrew Coughlin, Yungpo Bernard Su, Tien-Shew Huang, John Gentry
BACKGROUND: Primary intestinal-type adenocarcinoma (ITAC) of the oral tongue is an extremely uncommon malignancy with only 3 cases reported in the literature. This high-grade malignancy originates from metaplasia of minor salivary glands. METHODS: A 40-year-old man presented with a gradually enlarging midline oral tongue mass, odynophagia, and dysphagia. Management included a median lingual glossectomy, bilateral neck dissections, and adjuvant chemoradiation with 5-fluorouracil (5-FU)...
May 13, 2018: Head & Neck
https://www.readbyqxmd.com/read/29752738/adenodermatofibroma-possessing-dilated-glandular-structures-with-eccrine-features-a-case-study
#17
Ikko Muto, Fumi Kuwahara, Takako Shintani, Hiroshi Saruta, Takekuni Nakama, Chika Ohata
Adenodermatofibroma is a newly recognized variant of dermatofibroma. It is characterized by dense proliferation of fibroblasts and histiocytes admixed with dilated glandular structures showing apocrine secretion. Only 5 cases of adenodermatofibroma have been reported to date. We report an additional case of adenodermatofibroma on the back of a 67-year-old female. In addition to the dilated glandular structures, non-dilated eccrine units were present at the upper periphery of the lesion, above which the normal eccrine glands reside...
May 12, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29750543/a-disintegrin-and-a-metalloproteinase-domain-8-adam8-a-novel-protective-proteinase-in-copd
#18
Francesca Polverino, Joselyn Rojas-Quintero, Xiaoyun Wang, Hans Petersen, Li Zhang, Xiaoyan Gai, Andrew Higham, Duo Zhang, Kushagra Gupta, Amit Rout, Ilyas Yambayev, Victor Pinto-Plata, Lynette M Sholl, Danen Cunoosamy, Bartolomé R Celli, James Goldring, Dave Singh, Yohannes Tesfaigzi, Jadwiga Wedzicha, Henric Olsson, Caroline A Owen
RATIONALE: A disintegrin and metalloproteinase-8 (ADAM8) is expressed by leukocytes and epithelial cells in health, but its contribution to the pathogenesis of COPD is unknown. OBJECTIVES: ADAM8 levels were measured in lung, sputum, plasma, and/or bronchoalveolar lavage fluid (BALF) samples from COPD patients, smokers, and non-smokers, and wild-type (WT) mice exposed to cigarette smoke (CS) versus air. COPD-like lung pathologies were compared in CS-exposed WT versus Adam8-/- mice...
May 11, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29749528/methylation-of-the-claudin%C3%A2-3-promoter-predicts-the-prognosis-of-advanced-gastric-adenocarcinoma
#19
Zhenzhen Zhang, Weixing Yu, Shuqin Chen, Yupeng Chen, Linying Chen, Sheng Zhang
Claudin‑3 expression is associated with gastric cancer progression, but the role of epigenetic modifications remains unclear. We investigated methylation of the claudin‑3 promoter and expression profiles in gastric adenocarcinoma and their associations with clinicopathological characteristics and prognosis of the patients. A total of 122 patients with advanced gastric cancer [stage IIB‑IV, with lymph node (LN) metastasis] were enrolled. Each patient provided 4 tissue samples: normal gastric epithelium, intestinal metaplasia, primary tumor and metastatic LN...
May 2, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29742739/development-of-ipsilateral-chest-wall-spindle-cell-carcinoma-in-a-patient-with-invasive-ductal-breast-carcinoma-during-postoperative-adjuvant-therapy-a-case-report
#20
Kaifu Li, Hua Kang, Yajun Wang, Tao Hai, Bixiao Wang
RATIONALE: Metaplastic breast carcinoma (MBC) is rare subtype of breast carcinoma and is regarded as ductal carcinoma that undergoes metaplasia into a glandular growth pattern. Spindle cell carcinoma (SPC) is a subtype of MBC with a predominant spindle cell component. PATIENT CONCERNS: The patient was a 52-year-old female with invasive ductal breast carcinoma who underwent a modified radical mastectomy and an axillary node dissection. A new lump was observed underneath the surgical site between the pectoralis major and pectoralis minor muscles 45 days after the patient underwent sequential postoperative chemotherapy and radiotherapy...
May 2018: Medicine (Baltimore)
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