keyword
MENU ▼
Read by QxMD icon Read
search

Intestinal metaplasia

keyword
https://www.readbyqxmd.com/read/29050151/-relationship-between-helicobacter-pylori-infection-and-mir-24-3p-expression-during-the-development-of-gastric-mucosa-lesions
#1
C Li, Y L Zhu, Q Li, D S Li, G B Yang
Objectives: To explore the expression of micro RNA-24-3p (miR-24-3p) in different gastric mucosa lesions, and analyze the potential correlation between Helicobacter pylori (H.pylori) infection and miR-24-3p expression in different gastric lesions. Methods: 158 gastric biopsy specimens were divided into four groups, including 35 chronic superficial gastritis (CSG) samples, 43 chronic atrophic gastritis (CAG) samples, 41 intestinal metaplasia (IM) samples and 39 dysplasia (Dys) samples. Those samples were collected from patients undergoing gastroscopy at the Department of Gastroenterology, Aerospace Center Hospital, from September 2005 to June 2012...
September 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29046726/helicobacter-pylori-virulence-genes-of-minor-ethnic-groups-in-north-thailand
#2
Phawinee Subsomwong, Muhammad Miftahussurur, Ratha-Korn Vilaichone, Thawee Ratanachu-Ek, Rumiko Suzuki, Junko Akada, Tomohisa Uchida, Varocha Mahachai, Yoshio Yamaoka
BACKGROUND: There are few studies analyzed concurrently the prevalence and genotypes of Helicobacter pylori infection with the ancestor origins from different ethnics, especially with including minority groups. We recruited a total of 289 patients in MaeSot, Thailand (154 Thai, 14 Thai-Chinese, 29 Karen and 92 Hmong ethnics). The virulence genes and genealogy of the strains were determined by PCR-based sequencing. RESULTS: Based on culture and histology/immunohistochemistry, the prevalence of H...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/29044464/prognostic-value-of-the-cancer-oncogene-kelch-like-6-in-gastric-cancer
#3
J Deng, J Guo, G Ma, H Zhang, D Sun, Y Hou, X Xie, X Guo, Y Nie, H Liang
BACKGROUND: Kelch-like 6 (KLHL6) is a cancer oncogene previously associated with specific human cancers, such as chronic lymphocytic leukaemia. Here, the mechanisms of KLHL6 function were explored in gastric cancer (GC) cells, in an in vivo experimental tumour model, and the prognostic value of KLHL6 analysis in GC tissue evaluated in a cohort of patients with GC. METHODS: Associations between clinicopathological and survival data and KLHL6 expression in GC tissues were analysed...
October 17, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/29042646/effects-of-long-term-aspirin-use-on-molecular-alterations-in-precancerous-gastric-mucosa-in-patients-with-and-without-gastric-cancer
#4
Yuki Michigami, Jiro Watari, Chiyomi Ito, Ken Hara, Takahisa Yamasaki, Takashi Kondo, Tomoaki Kono, Katsuyuki Tozawa, Toshihiko Tomita, Tadayuki Oshima, Hirokazu Fukui, Takeshi Morimoto, Kiron M Das, Hiroto Miwa
The risk of gastric cancer (GC) remains even after H. pylori eradication; thus, other combination treatments, such as chemopreventive drugs, are needed. We evaluated the effects of aspirin on genetic/epigenetic alterations in precancerous conditions, i.e., atrophic mucosa (AM) and intestinal metaplasia (IM), in patients with chronic gastritis who had taken aspirin for more than 3 years. A total of 221 biopsy specimens from 74 patients, including atrophic gastritis (AG) cases without aspirin use (control), AG cases with aspirin use (AG group), and GC cases with aspirin use (GC group), were analyzed...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29039896/transition-to-adulthood-with-a-bladder-augmentation-histopathologic-concerns
#5
Emil Mammadov, Sergulen Dervisoglu, Mehmet Elicevik, Haluk Emir, Yunus Soylet, S N Cenk Buyukunal
AIM: To investigate the histopathologic changes in native bladder and gastrointestinal segment, the relation between histopathologic changes, type of operation and the period passed over operation in patients with bladder augmentation. MATERIALS AND METHODS: Twenty consecutive patients were enrolled in this study. Histopathologic evaluation of the cystoscopic mucosal biopsies from native bladder and enteric augment was performed in all patients. RESULTS: Active or chronic non-specific inflammation of various degrees was found in all specimens except two...
October 17, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29027178/mechanisms-of-regulation-of-normal-and-metaplastic-intestinal-differentiation
#6
REVIEW
Jaime P Rodrigues, Leonor David, Raquel Almeida, Rita Barros, Teresa Freitas, Joana Silva, Ana Ponte, Mafalda Sousa, João Carlos Silva, João Carvalho
The gastrointestinal tract is an organized structure originating from the three embryonic germ layers: endoderm, mesoderm and ectoderm. Morphological changes that accompany its formation are relatively well known, although the underlying molecular mechanisms are still poorly defined. Intestinal metaplasia, resulting from an epithelial transdifferentiation process, is considered a precursor lesion of gastric adenocarcinoma, a malignancy with serious consequences in terms of morbidity and mortality worldwide...
October 13, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/29019984/transitional-basal-cells-at-the-squamous-columnar-junction-generate-barrett-s-oesophagus
#7
Ming Jiang, Haiyan Li, Yongchun Zhang, Ying Yang, Rong Lu, Kuancan Liu, Sijie Lin, Xiaopeng Lan, Haikun Wang, Han Wu, Jian Zhu, Zhongren Zhou, Jianming Xu, Dong-Kee Lee, Lanjing Zhang, Yuan-Cho Lee, Jingsong Yuan, Julian A Abrams, Timothy C Wang, Antonia R Sepulveda, Qi Wu, Huaiyong Chen, Xin Sun, Junjun She, Xiaoxin Chen, Jianwen Que
In several organ systems, the transitional zone between different types of epithelium is a hotspot for pre-neoplastic metaplasia and malignancy, but the cells of origin for these metaplastic epithelia and subsequent malignancies remain unknown. In the case of Barrett's oesophagus, intestinal metaplasia occurs at the gastro-oesophageal junction, where stratified squamous epithelium transitions into simple columnar cells. On the basis of a number of experimental models, several alternative cell types have been proposed as the source of this metaplasia but in all cases the evidence is inconclusive: no model completely mimics Barrett's oesophagus in terms of the presence of intestinal goblet cells...
October 12, 2017: Nature
https://www.readbyqxmd.com/read/29016405/definition-of-barrett-esophagus-in-the-united-states-support-for-retention-of-a-requirement-for-goblet-cells
#8
Kevan J Salimian, Kevin M Waters, Ogechukwu Eze, Maryam K Pezhouh, Yaman Tarabishy, Eun-Ji Shin, Marcia I Canto, Lysandra Voltaggio, Elizabeth A Montgomery
Barrett esophagus (BE) predisposes patients to the development of esophageal adenocarcinoma (EAC). However, the global definition of BE is controversial. Pathologists in Europe and the United States require intestinal metaplasia (IM) within columnar-lined mucosa (CLM) in the tubular esophagus to diagnose BE, whereas in the UK and Japan only the presence of CLM is required. To aid in establishing an appropriate definition for BE, we evaluated whether IM accompanies EAC in a US patient cohort. We examined a series of 139 consecutive patients who underwent endoscopic mucosal resections or esophagectomies for EAC performed at a US tertiary care center...
October 9, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28984336/a-retrospective-evaluation-of-the-epithelial-changes-lesions-and-neoplasms-of-the-gallbladder-in-turkey-and-a-review-of-the-existing-sampling-methods-a-multicentre-study
#9
Güldal Esendağlı, F Göknur Akarca, Serdar Balcı, Asuman Argon, Selma Şengiz Erhan, Nesrin Turhan, Neslihan İnce Zengin, Sevinç Hallaç Keser, Betül Çelik, Tangül Bulut, Samir Abdullazade, Esra Erden, Berna Savaş, Temmuz Bostan, Özgül Sağol, Anıl Aysal Ağalar, Nuray Kepil, Yıldırım Karslıoğlu, Armağan Günal, Fatma Markoç, Burcu Saka, Gonca Özgün, Şükrü Oğuz Özdamar, Burak Bahadır, Esin Kaymaz, Emre Işık, Semin Ayhan, Deniz Tunçel, Banu Özgüven Yılmaz, Sevinç Çelik, Tuba Karabacak, İpek Erbarut Seven, Çiğdem Ataizi Çelikel, Zuhal Gücin, Özgür Ekinci, Gülen Akyol
OBJECTIVE: As there is continuing disagreement among the observers on the differential diagnosis between the epithelial changes/lesions and neoplasms of the gallbladder, this multicentre study was planned in order to assess the rate of the epithelial gallbladder lesions in Turkey and to propose microscopy and macroscopy protocols. MATERIAL AND METHOD: With the participation of 22 institutions around Turkey that were included in the Hepato-Pancreato-Biliary Study Group, 89,324 cholecystectomy specimens sampled from 2003 to 2016 were retrospectively evaluated...
October 6, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28979713/efficacy-and-safety-of-liquid-nitrogen-cryotherapy-for-treatment-of-barrett-s-esophagus
#10
Kristen Suchniak-Mussari, Charles E Dye, Matthew T Moyer, Abraham Mathew, Thomas J McGarrity, Eileen M Gagliardi, Jennifer L Maranki, John M Levenick
AIM: To evaluate the efficacy and safety of liquid nitrogen cryotherapy as a primary or rescue treatment for BE, with and without dysplasia, or intramucosal adenocarcinoma (IMC). METHODS: This was a retrospective, single-center study carried out in a tertiary care center including 45 patients with BE who was treatment-naïve or who had persistent intestinal metaplasia (IM), dysplasia, or IMC despite prior therapy. Barrett's mucosa was resected via EMR when clinically appropriate, then patients underwent cryotherapy until eradication or until deemed to have failed treatment...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28978001/tenascin-c-and-fibronectin-in-normal-esophageal-mucosa-barrett-s-esophagus-dysplasia-and-adenocarcinoma
#11
Joni Leppänen, Sara Bogdanoff, Petri P Lehenkari, Juha Saarnio, Joonas H Kauppila, Tuomo J Karttunen, Heikki Huhta, Olli Helminen
BACKGROUND: Tenascin-C and fibronectin are adhesive glycoproteins modulating the structure of the extracellular matrix and cellular functions. Their expression and function in esophageal adenocarcinoma is poorly known. The aim of this study was to evaluate the expression of tenascin-C and fibronectin in esophageal adenocarcinoma and its precursor stages. RESULTS: Stromal tenascin-C and fibronectin expression were found in all evaluated lesion types. Expression of both molecules increased from gastric metaplasia towards adenocarcinoma (p<0...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28968998/identification-of-aqp3-and-cd24-as-biomarkers-for-carcinogenesis-of-gastric-intestinal-metaplasia
#12
Haijian Zhao, Jianfei Wen, Xuqiang Dong, Ruji He, Cheng Gao, Weiming Zhang, Zhihong Zhang, Lizong Shen
Gastric intestinal metaplasia (GIM) is a precancerous gastric carcinoma (GC) lesion with pivotal roles in carcinogenesis. CD24, LGR5 and Ki67 are expressed in GIM; we previously demonstrated that aquaporin 3 (AQP3) is expressed in goblet cells and is positively correlated with GIM severity. However, the relationships of AQP3 with GIM classification and with other proteins, and their roles in the transition from GIM to gastric carcinoma (GC) remain unknown. Sixteen patients with intestinal-type GC were enrolled in this study...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28958906/the-impact-of-advanced-endoscopic-imaging-on-barrett-s-esophagus-in-daily-clinical-practice
#13
Sabina Beg, Mussa Mensa, Mark Fullard, Elizabeth Finerty, Paul Richman, Anthony Leahy
BACKGROUND AND AIMS: Several advanced imaging techniques have been proposed to improve the visualization of dysplastic regions within Barrett's epithelium, with some evidence for the use of narrow-band imaging and acetic acid chromo-endoscopy. METHODS: We retrospectively analyzed consecutive cases of Barrett's esophagus, diagnosed using white-light endoscopy and confirmed histologically by the presence of intestinal metaplasia, between April 2007 and April 2010 in a large community hospital...
September 25, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28954045/low-prevalence-of-barrett-s-esophagus-in-a-risk-area-for-esophageal-cancer-in-south-of-brazil
#14
Diego Michelon DE Carli, Amanda Faria de Araujo, Renato Borges Fagundes
BACKGROUND: Barrett's esophagus a complication of gastroesophageal reflux disease (GERD) is a precursor of esophageal adenocarcinoma. The incidence of esophageal adenocarcinoma has been increasing in most Western countries. Rio Grande do Sul (RS), the Southernmost state of Brazil has the highest rates of esophageal cancer with low prevalence of esophageal adenocarcinoma. OBJECTIVE: To investigate the prevalence of Barrett's esophagus among patients underwent to upper gastrointestinal endoscopy in the last 5 years...
September 21, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28953255/metaplasia-in-the-stomach-precursor-of-gastric-cancer
#15
REVIEW
Hiroto Kinoshita, Yoku Hayakawa, Kazuhiko Koike
Despite a significant decrease in the incidence of gastric cancer in Western countries over the past century, gastric cancer is still one of the leading causes of cancer-related deaths worldwide. Most human gastric cancers develop after long-term Helicobacter pylori infection via the Correa pathway: the progression is from gastritis, atrophy, intestinal metaplasia, dysplasia, to cancer. However, it remains unclear whether metaplasia is a direct precursor of gastric cancer or merely a marker of high cancer risk...
September 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28947866/factors-associated-with-gastric-adenocarcinoma-and-dysplasia-in-patients-with-chronic-gastritis-a-population-based-study
#16
Jie Xing, Li Min, Shengtao Zhu, Hao Zhang, Yu Zhao, Hengcun Li, Zheng Zhang, Peng Li, Shutian Zhang
OBJECTIVE: Gastric cancer (GC) is one of the leading causes of death in China and other Asian countries. Recently, gastric endoscopy has become the main approach for GC screening, but the identification of high-risk individuals remains a challenge in GC screening programs. METHODS: There were 7,302 patients with chronic gastritis involved in this study. Endoscopic examinations were performed, and their demographic characteristics and lifestyle data were collected...
August 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28946145/impact-of-cyclooxygenase-2-1195-g-carrier-genotype-associated-with-intestinal-metaplasia-and-endoscopic-findings-based-on-kyoto-classification
#17
Yasuhiro Kodaka, Seiji Futagami, Atsushi Tatsuguchi, Hiroshi Yamawaki, Hitomi Sato, Satomi Hashimoto, Tetsuro Kawagoe, Nobue Ueki, Hiroyuki Nagoya, Yuuta Maruki, Kazumasa Miyake, Katya Gudis, Choitsu Sakamoto, Katsuhiko Iwakiri
BACKGROUND/AIMS: We aimed to clarify whether cyclooxygenase-2 (COX-2) and microsomal prostaglandin E synthase-1 (mPGES-1) genotypes were associated with certain histological findings and endoscopical appearances based on Kyoto classification. METHODS: We enrolled 285 Helicobacter pylori-infected gastritis patients. Genotypes of COX-2 1195, COX-2 1290, mPGES-1, interleukin-1β (IL-1β) 511 and tumour necrosis factor-α (TNF-α) 308 were analyzed. Genotyping was performed by polymerase chain reaction...
September 26, 2017: Digestion
https://www.readbyqxmd.com/read/28941013/deoxycholic-acid-promotes-development-of-gastroesophageal-reflux-disease-and-barrett-s-oesophagus-by-modulating-integrin-%C3%AE-v-trafficking
#18
David O Prichard, Anne Marie Byrne, James O Murphy, John V Reynolds, Jacintha O'Sullivan, Ronan Feighery, Brendan Doyle, Osama Sharaf Eldin, Stephen P Finn, Aoife Maguire, Deirdre Duff, Dermot P Kelleher, Aideen Long
The fundamental mechanisms underlying erosive oesophagitis and subsequent development of Barrett's oesophagus (BO) are poorly understood. Here, we investigated the contribution of specific components of the gastric refluxate on adhesion molecules involved in epithelial barrier maintenance. Cell line models of squamous epithelium (HET-1A) and BO (QH) were used to examine the effects of bile acids on cell adhesion to extracellular matrix proteins (Collagen, laminin, vitronectin, fibronectin) and expression of integrin ligands (α3 , α4, α5 , α6 and αν )...
September 22, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28940945/effect-of-biopsy-site-on-detection-of-gastric-cancer-high-risk-groups-by-olga-and-olgim-stages
#19
Young-Il Kim, Myeong-Cherl Kook, Soo-Jeong Cho, Jong Yeul Lee, Chan Gyoo Kim, Jungnam Joo, Il Ju Choi
BACKGROUND/AIMS: The operative link for gastritis assessment (OLGA) and operative link on gastric intestinal metaplasia assessment (OLGIM) staging systems are recommended to assess the severity of gastritis, but the optimal biopsy sites have not been clearly defined. We aimed to investigate whether the scoring of the OLGA and OLGIM stages was affected by the use of different biopsy sites. METHODS: Between 2014 and 2015, to determine OLGA and OLGIM stages, seven biopsy samples were obtained from the antrum (lesser and greater curvatures [LG] of the antrum and lesser curvature of the angle) and corpus (LG and anterior and posterior walls [AP]) in 247 patients diagnosed with gastritis, gastric adenoma, or adenocarcinoma...
September 22, 2017: Helicobacter
https://www.readbyqxmd.com/read/28936790/favorable-results-from-a-prospective-evaluation-of-200-patients-with-large-hiatal-hernias-undergoing-linx-magnetic-sphincter-augmentation
#20
F P Buckley, Reginald C W Bell, Kate Freeman, Stephanie Doggett, Rachel Heidrick
INTRODUCTION: Magnetic sphincter augmentation (MSA) of the lower esophageal sphincter restores the antireflux barrier in patients with hiatal hernias ≤3 cm. We performed a prospective study in patients undergoing MSA with the LINX device during repair of paraesophageal and hernias over 3 cm axial component. METHODS AND PROCEDURES: Multicenter, prospective study of consecutive patients treated with MSA at the time of repair of hiatal hernias >3 cm. RESULTS: 200 patients (110 female) were treated between March 2014 and February 2017 via laparoscopic hernia repair and MSA...
September 21, 2017: Surgical Endoscopy
keyword
keyword
24143
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"