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gastric cancer and early detection

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https://www.readbyqxmd.com/read/28424913/can-further-gastrectomy-be-avoided-in-patients-with-incomplete-endoscopic-resection
#1
Hee Sung Kim, Ji Yong Ahn, Seon Ok Kim, Byung Sik Kim
BACKGROUND: Endoscopic resection (ER) is a widely accepted treatment for patients with early gastric cancer (EGC) with no lymph node metastasis. Occasionally, however, additional surgery is needed due to an incomplete resection. The purpose of this study was to detect clinical factors which might identify patients at greater risk of additional surgery after ER and to suggest an alternative treatment strategy for these patients. METHODS: This study retrospectively analyzed 350 patients with gastric cancer who underwent radical gastrectomy and lymphadenectomy after ER in a single institution between July 2004 and July 2014...
April 19, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28421114/status-of-epstein-barr-virus-coinfection-with-helicobacter-pylori-in-gastric-cancer
#2
REVIEW
Shyam Singh, Hem Chandra Jha
Epstein-Barr virus is a ubiquitous human herpesvirus whose primary infection causes mononucleosis, Burkett's lymphoma, nasopharyngeal carcinoma, autoimmune diseases, and gastric cancer (GC). The persistent infection causes malignancies in lymph and epithelial cells. Helicobacter pylori causes gastritis in human with chronic inflammation. This chronic inflammation is thought to be the cause of genomic instability. About 45%-word population have a probability of having both pathogens, namely, H. pylori and EBV...
2017: Journal of Oncology
https://www.readbyqxmd.com/read/28418867/early-detection-of-gastric-cancer-using-global-genome-wide-and-irf4-elmo1-clip4-and-msc-dna-methylation-in-endoscopic-biopsies
#3
Francesca Pirini, Sassan Noazin, Martha H Jahuira-Arias, Sebastian Rodriguez-Torres, Leah Friess, Christina Michailidi, Jaime Cok, Juan Combe, Gloria Vargas, William Prado, Ethan Soudry, Jimena Pérez, Tikki Yudin, Andrea Mancinelli, Helen Unger, Carmen Ili-Gangas, Priscilla Brebi-Mieville, Douglas E Berg, Masamichi Hayashi, David Sidransky, Robert H Gilman, Rafael Guerrero-Preston
Clinically useful molecular tools to triage gastric cancer patients are not currently available. We aimed to develop a molecular tool to predict gastric cancer risk in endoscopy-driven biopsies obtained from high-risk gastric cancer clinics in low resource settings.We discovered and validated a DNA methylation biomarker panel in endoscopic samples obtained from 362 patients seen between 2004 and 2009 in three high-risk gastric cancer clinics in Lima, Perú, and validated it in 306 samples from the Cancer Genome Atlas project ("TCGA")...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415792/a-cd44-specific-peptide-rp-1-exhibits-capacities-of-assisting-diagnosis-and-predicting-prognosis-of-gastric-cancer
#4
Weiming Li, Huan Jia, Jichang Wang, Hao Guan, Yan Li, Dan Zhang, Yanan Tang, Thomas D Wang, Shaoying Lu
Early diagnosis and evaluation of prognosis are both crucial for preventing poor prognosis of patients with gastric cancer (GC), a leading cause of cancer-related deaths worldwide. Cluster of differentiation 44 (CD44), an indicator of cancer stem cells, can be specifically targeted by molecular probes and detected in tissues of GC in a large quantity. In current study we found that RP-1, a specific peptide binding to CD44 protein, exhibited the potentials of specific binding to CD44 high-expressing cancer cells both in vitro and in vivo, and the capacity of predicting prognosis of human GC in a microarray assay...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28389793/location-characteristics-of-early-gastric-cancer-treated-with-endoscopic-submucosal-dissection
#5
Dae Hwan Kang, Cheol Woong Choi, Hyung Wook Kim, Su Bum Park, Su Jin Kim, Hyeong Seok Nam, Dae Gon Ryu
BACKGROUND AND STUDY AIMS: The timely detection of early gastric cancer (EGC) is important in performing endoscopic submucosal dissection (ESD). We attempted to determine the location characteristics of regions where EGC is frequently detected and analyzed the EGC characteristics associated with that location. METHODS: We retrospectively reviewed the medical records of patients with EGC treated by ESD between November 2008 and August 2016. We retrospectively investigated and analyzed 647 EGC lesions...
April 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28373470/clinical-significance-of-serum-p53-antibody-in-the-early-detection-and-poor-prognosis-of-gastric-cancer
#6
Masaki Kunizaki, Akiko Fukuda, Kouki Wakata, Tetsuro Tominaga, Takashi Nonaka, Takuro Miyazaki, Keitaro Matsumoto, Yorihisa Sumida, Shigekazu Hidaka, Toru Yasutake, Terumitsu Sawai, Ryuji Hamamoto, Atsushi Nanashima, Takeshi Nagayasu
BACKGROUND: The aim of this retrospective study was to evaluate the clinical relevance of serum p53 antibody (S-p53Ab) as a biomarker and to investigate whether its diagnostic value could be improved when combined with other biomarkers of gastric cancer (GC). PATIENTS AND METHODS: Serum samples were obtained preoperatively from 208 patients with histologically-confirmed GC, including 126 stage I patients (60.6%). Levels of S-p53Ab were assessed by a commercial laboratory using an anti-p53 detection kit...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28365944/mutual-information-network-based-support-vector-machine-strategy-identifies-salivary-biomarkers-in-gastric-cancer
#7
Yu-Gang Xu, Ming Cheng, Xia Zhang, Shi-Hai Sun, Wei-Min Bi
PURPOSE: To determine the vital salivary transcriptomic biomarkers for the early detection of gastric cancer via comparing classification efficiency of multiple candidate genes. METHODS: We firstly identified 5 kinds of candidate genes related to gastric cancer, including differential pathway genes (DPGs) based on the attract method, hub genes in differential pathways based on mutual information network (MIN) analysis, differentially expressed genes (DEGs) identified by Significance Analysis of Microarrays (SAM), informative genes (DEGs in differential pathways), and key genes (hub DEGs)...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28343837/gastrointestinal-cancers-screening-and-early-detection
#8
REVIEW
Joyce P Griffin-Sobel
OBJECTIVE: To present an overview of current practices in the screening and early detection of gastrointestinal cancers. DATA SOURCES: Literature reviews. CONCLUSION: Screening for gastrointestinal cancers is less than desirable, particularly in underserved populations. There are inadequate methods of screening for early detection of esophageal and gastric cancers. IMPLICATIONS FOR NURSING PRACTICE: Education of patients is needed to reinforce the importance of screening for gastrointestinal cancers...
March 23, 2017: Seminars in Oncology Nursing
https://www.readbyqxmd.com/read/28337366/natural-history-of-early-gastric-cancer-a-case-report-and-literature-review
#9
Tomohiro Iwai, Masao Yoshida, Hiroyuki Ono, Naomi Kakushima, Kohei Takizawa, Masaki Tanaka, Noboru Kawata, Sayo Ito, Kenichiro Imai, Kinichi Hotta, Hirotoshi Ishiwatari, Hiroyuki Matsubayashi
Early detection and treatment decrease the mortality rate associated with gastric cancer (GC). However, the natural history of GC remains unclear. An 85-year-old woman was referred to our hospital for evaluation of a gastric tumor. Esophagogastroduodenoscopy identified a 6 mm, flat-elevated lesion at the lesser curvature of the antrum. A biopsy specimen showed a well-differentiated tubular adenocarcinoma. The depth of the lesion was estimated to be intramucosal. Although the lesion met the indications for endoscopic resection, periodic endoscopic follow-up was performed due to the patient's advanced age and comorbidities...
March 2017: Journal of Gastric Cancer
https://www.readbyqxmd.com/read/28335260/a-label-free-microelectrode-array-based-on-one-step-synthesis-of-chitosan-multi-walled-carbon-nanotube-thionine-for-ultrasensitive-detection-of-carcinoembryonic-antigen
#10
Huiren Xu, Yang Wang, Li Wang, Yilin Song, Jinping Luo, Xinxia Cai
Carcinoembryonic antigen (CEA) has been an extensively used tumor marker responsible for clinical early diagnosis of cervical carcinomas, and pancreatic, colorectal, gastric and lung cancer. Combined with micro-electro mechanical system (MEMS) technology, it is important to develop a novel immune microelectrode array (MEA) not only for rapid analysis of serum samples, but also for cell detection in vitro and in vivo. In this work, we depict a simple approach to modify chitosan-multi-walled carbon nanotubes-thionine (CS-MWCNTs-THI) hybrid film through one-step electrochemical deposition and the CS-MWCNTs-THI hybrid films are successfully employed to immobilize anti-CEA for fabricating simple, label-free, and highly sensitive electro-chemical immune MEAs...
July 11, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28321154/host-pathogen-interactions-in-helicobacter-pylori-related-gastric-cancer
#11
EDITORIAL
Magdalena Chmiela, Zuzanna Karwowska, Weronika Gonciarz, Bujana Allushi, Paweł Stączek
Helicobacter pylori (H. pylori), discovered in 1982, is a microaerophilic, spiral-shaped gram-negative bacterium that is able to colonize the human stomach. Nearly half of the world's population is infected by this pathogen. Its ability to induce gastritis, peptic ulcers, gastric cancer and mucosa-associated lymphoid tissue lymphoma has been confirmed. The susceptibility of an individual to these clinical outcomes is multifactorial and depends on H. pylori virulence, environmental factors, the genetic susceptibility of the host and the reactivity of the host immune system...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28321054/efficacy-of-the-kyoto-classification-of-gastritis-in-identifying-patients-at-high-risk-for-gastric-cancer
#12
Mitsushige Sugimoto, Hiromitsu Ban, Hitomi Ichikawa, Shu Sahara, Taketo Otsuka, Osamu Inatomi, Shigeki Bamba, Takahisa Furuta, Akira Andoh
Objective The Kyoto gastritis classification categorizes the endoscopic characteristics of Helicobacter pylori (H. pylori) infection-associated gastritis and identifies patterns associated with a high risk of gastric cancer. We investigated its efficacy, comparing scores in patients with H. pylori-associated gastritis and with gastric cancer. Methods A total of 1,200 patients with H. pylori-positive gastritis alone (n=932), early-stage H. pylori-positive gastric cancer (n=189), and successfully treated H. pylori-negative cancer (n=79) were endoscopically graded according to the Kyoto gastritis classification for atrophy, intestinal metaplasia, fold hypertrophy, nodularity, and diffuse redness...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28319413/aberrant-promoter-hypermethylation-of-p16-survivin-and-retinoblastoma-in-gastric-cancer
#13
L Guo, C Huang, Q J Ji
BACKGROUND: Gastric cancer is common and can be found throughout the world. Notoriously like other cancers, gastric cancer is a consequence of cellular regulation disorder. Epigenetics, including many oncogenes or tumour suppressor genes, can provide some clues for this kind of disorder. DNA methylation, especially promoter methylation, which causes the silence/decrease of tumour related genes, has become a focus in various tumour types. The aim of this study was to investigate promoter methylation of certain genes: p16, survivin, retinoblastoma (Rb), all of which have been regarded as genes related to gastric cancer...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28300576/clinical-significance-of-spasmolytic-polypeptide-expressing-metaplasia-and-intestinal-metaplasia-in-ebv-associated-and-ebv-negative-gastric-cancer
#14
Yu Zhang, Jian-Ning Chen, Min Dong, Zhi-Gang Zhang, Yi-Wang Zhang, Jun-Yan Wu, Hong Du, Hai-Gang Li, Yan Huang, Chun-Kui Shao
Spasmolytic polypeptide-expressing metaplasia (SPEM) and intestinal metaplasia (IM) have been recognized as neoplastic precursors in gastric carcinogenesis. We explored the relationship between SPEM and IM in Epstein-Barr virus-associated (EBVaGC) and Epstein-Barr virus-negative (EBVnGC) gastric cancer. 64 EBVaGC and 154 EBVnGC patients were included. EBV-positivity was identified using EBER-1 in situ hybridization. SPEM was sub-classified into absent, early and advanced SPEM. Acute and chronic inflammation was graded as absent, mild, moderate and marked...
March 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28288471/early-stage-gastric-cancer-can-be-found-in-improved-atrophic-mucosa-over-time-from-successful-helicobacter-pylori-eradication
#15
Atsushi Majima, Osamu Handa, Yuji Naito, Osamu Dohi, Tetsuya Okayama, Naohisa Yoshida, Kazuhiro Kamada, Kazuhiro Katada, Kazuhiko Uchiyama, Takeshi Ishikawa, Tomohisa Takagi, Hideyuki Konishi, Nobuaki Yagi, Yoshito Itoh
BACKGROUND/AIMS: Early-stage gastric cancer (EGC) is detected even after successful Helicobacter pylori eradication. This study is aimed at clarifying the clinicopathological characteristics of EGC detected after successful H. pylori eradication. METHODS: This retrospective study analyzed 57 cases of EGC detected after successful H. pylori eradication and resected endoscopically at Kyoto Prefectural University of Medicine, between January 2009 and June 2014. Clinicopathological findings of 57 cases (H...
March 14, 2017: Digestion
https://www.readbyqxmd.com/read/28283849/long-term-outcome-after-endoscopic-submucosal-dissection-for-early-gastric-cancer-in-non-neoplastic-pathology-results
#16
Yong Hwan Kwon, Seong Woo Jeon, Su Youn Nam, Hyun Seok Lee, Jeong Shik Kim, Ji Young Park
BACKGROUND: After endoscopic submucosal dissection (ESD) for early gastric cancer (EGC), negative pathological findings cause concern about the adequacy of the procedure and local recurrence after ESD. AIM: To investigate the incidence of local recurrence in cases with negative pathological findings after ESD for EGC and pathologically complete resection (CR) during long-term follow-up. METHODS: We reviewed 453 patients who underwent ESD for ECG from January 2007 to December 2010, respectively...
May 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28271094/clinical-outcomes-of-gastric-polyps-and-neoplasms-in-patients-with-familial-adenomatous-polyposis
#17
Keiko Nakamura, Satoru Nonaka, Takeshi Nakajima, Tatsuo Yachida, Seiichiro Abe, Taku Sakamoto, Haruhisa Suzuki, Shigetaka Yoshinaga, Ichiro Oda, Takahisa Matsuda, Shigeki Sekine, Yukihide Kanemitsu, Hitoshi Katai, Yutaka Saito, Seiichi Hirota
Background and study aims Familial adenomatous polyposis (FAP) is an autosomal dominant syndrome caused by a germline mutation in the adenomatous polyposis coli (APC) gene, characterized by the presence of more than 100 adenomatous polyps in the colorectum. The upper gastrointestinal tract is an extracolonic site for malignancy in patients with FAP. The frequency of death in Japanese patients with FAP because of gastric cancer is 2.8 % and that because of colon cancer is 60.6 %. Few studies have reported upper gastrointestinal diseases in patients with FAP...
March 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28251999/the-serum-pepsinogen-test-as-a-predictor-of-kazakh-gastric-cancer
#18
Wei Juan Cai, Liang Yin, Qiang Kang, Zu Chen Zeng, Shao Liang Wang, Jiang Cheng
Gastric cancer (GC) is one of the most common malignant tumors and the Kazakh population in Xinjiang has been reported to be one of the highest incidence of GC in the world. Serum pepsinogen (PG) test provides a valuable method for detecting GC, but little study about the role of PG in Kazakh GC. Therefore, we aimed to investigate the role of PG in Kazakh GC and to elucidate the usefulness of the serum PG test method. The serum PG concentration were measured using the flow fluorescence assay and ELISA methods in patients with superficial gastritis, atrophic gastritis and GC...
March 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28243814/dna-diagnosis-of-peritoneal-fluid-cytology-test-by-cdo1-promoter-dna-hypermethylation-in-gastric-cancer
#19
Hideki Ushiku, Keishi Yamashita, Akira Ema, Naoko Minatani, Mariko Kikuchi, Ken Kojo, Keigo Yokoi, Toshimichi Tanaka, Nobuyuki Nishizawa, Satoru Ishii, Kei Hosoda, Hiromitsu Moriya, Hiroaki Mieno, Natsuya Katada, Shiro Kikuchi, Hiroshi Katoh, Masahiko Watanabe
BACKGROUND: Minimal residual disease of the peritoneum is challenging for early cancer detection in gastric cancer (GC). Utility of PCR amplification of cancer-derived DNA has been considered feasible due to its molecular stability, however such markers have never been available in GC clinics. We recently discovered cancer-specific methylation of CDO1 gene in GC, and investigated the clinical potential to detect the minimal residual disease. METHODS: One hundred and two GC patients were investigated for peritoneal fluid cytology test (CY), and detection level of the promoter DNA methylation of CDO1 gene was assessed by quantitative methylation specific PCR (Q-MSP) in the sediments (DNA CY)...
February 27, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28211282/signet-ring-cell-carcinoma-of-the-jejunum-an-uncommon-finding-within-the-reach-of-capsule-endoscopy
#20
José Francisco Juanmartiñena, Marta Montes, Ignacio Fernández-Urién
An 80 year-old female presented with ductal breast carcinoma (stage II) three years ago, complained of asthenia and iron-deficiency anemia. No diagnosis was obtained after conventional endoscopy and iron supplements were indicated. Ten months later visible digestive hemorrhage was presented. Upper and lower endoscopy was repeated but non-diagnosis was obtained. Thus, video capsule endoscopy was indicated identifying a stenotic lesion arising in the mucosa of distal jejunum. Histopathological examination revealed a poorly mucinous differentiated signet-ring cell adenocarcinoma with an intense peri-tumoral lymphoid (Crohn´s-like lymphoid reaction) and lympho-vascular infiltration with no nodal metastases (pT3N0;7ª edition TNM classification)...
February 2017: Revista Española de Enfermedades Digestivas
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