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gastric adenocarcinoma

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https://www.readbyqxmd.com/read/28229187/-precursors-of-gastric-cancer-dysplasia-and-adenoma
#1
C Langner
Gastric cancer develops from preneoplastic and early neoplastic precursor lesions. In particular, the intestinal type according to the Lauren classification is driven by chronic inflammation and progresses via a chronic gastritis - atrophy/metaplasia - dysplasia - carcinoma sequence. Staging of the extent of atrophy (OLGA) or intestinal metaplasia (OLGIM) enables risk stratification and determines follow-up investigations according to the management of precancerous conditions and lesions in the stomach (MAPS) international guidelines...
February 22, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28226358/-laparoscopic-segmental-gastrectomy-for-early-gastric-cancer
#2
Lai Xu, Beizhan Niu, Xiyu Sun, Menghua Dai, Yi Xiao
OBJECTIVE: To investigate the feasibility of segmental pylorus-reservation gastrectomy in patients with early gastric cancer. METHOD: A retrospective cohort study on clinical data of 6 patients strictly met the criteria of early gastric cancer locating in the middle of the stomach undergoing laparoscopic segmental gastrectomy from January 2014 to April 2016 at Department of General Surgery, Peking Union Medical College Hospital was carried out. Preoperative clinical staging revealed T1N0M0 for all the cases...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28226357/-analysis-of-clinicopathological-characteristics-and-prognosis-on-42-patients-with-primary-gastric-adenosquamous-cell-carcinoma
#3
Bin Li, Lin Sun, Xiaona Wang, Jingyu Deng, Xuewei Ding, Xuejun Wang, Bin Ke, Li Zhang, Rupeng Zhang, Han Liang
OBJECTIVE: To investigate the clinicopathological characteristics, diagnosis, treatment and prognosis of patients with primary gastric adenosquamous cell carcinoma. METHODS: A total of 5 562 patients with gastric neoplasm were admitted in Tianjin Medical University Cancer Institute and Hospital from January 2001 to January 2011. Among them 42 patients were diagnosed as primary gastric adenosquamous cell carcinoma, accounting for 0.76% of all the patients. The clinicopathological and follow-up data of these 42 patients with primary gastric adenosquamous cell carcinoma were retrospectively analyzed, and Cox proportional hazard model was used to analyze the prognostic factors of gastric adenocarcinoma squamous cell carcinoma...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28226354/-prognostic-factors-of-lymph-node-negative-metastasis-gastric-cancer
#4
Ding Sun, Huimian Xu, Jinyu Huang
OBJECTIVE: To investigate the prognostic factors of patients with lymph node-negative metastasis gastric cancer (pN0). METHODS: Clinicopathological data of patients with pN0 gastric cancer who underwent radical operation at the Department of Surgical Oncology, The First Hospital of China Medical University from May 1980 to August 2012 were collected and analyzed retrospectively. INCLUSION CRITERIA: (1) Patients were diagnosed as gastric adenocarcinoma; (2) Postoperative pathology confirmed T1a to 4bN0M0 gastric cancer; (3) Total number of harvested lymph node was more than 15...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28224562/solitary-choroidal-metastasis-from-gastric-adenocarcinoma-a-case-report
#5
Masanari Shimada, Susumu Amaya, Hiroaki Sugita, Yuichiro Furutani, Yoshinori Munemoto, Takeshi Mitsui, Toshiro Tanahashi, Yuzo Kikuchi
BACKGROUND: Metastatic choroidal carcinomas that originated from the gastrointestinal tract are extremely rare. We report a case of suspected solitary choroidal metastasis from gastric adenocarcinoma. CASE PRESENTATION: The patient was a 60-year-old man who had undergone laparoscopic distal gastrectomy with D1+ lymphadenecetomy for gastric cancer. The clinical stage was T1bN0M0 (TNM classification), but the pathological stage was T4aN0M0 beyond expectation. Adjuvant chemotherapy with oral Tegafur, Gimeracil, Oteracil potassium (TS-1(®)) was initiated...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28224423/prognostic-significance-of-autophagy-related-proteins-expression-in-resected-human-gastric-adenocarcinoma
#6
Bing Qu, Lei Yao, Hua-Ling Ma, Hong-Lei Chen, Zhi Zhang, Jiang Xie
Gastric adenocarcinoma (GC) is one of the most common malignancies in the world and one of the most frequent causes of cancer-related death. Autophagy is a highly regulated catabolic pathway responsible for the degradation of long-lived proteins and damaged intracellular organelles. However, the mechanism and guiding significance of autophagy in the development and progression of GC have remained to be elucidated. This study aimed to explore the clinicopathological significances and prognostic values of autophagy-related proteins AMBRA1 and Beclin-1 in GC...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28224238/a-non-randomized-confirmatory-trial-of-an-expanded-indication-for-endoscopic-submucosal-dissection-for-intestinal-type-gastric-cancer-ct1a-the-japan-clinical-oncology-group-study-jcog0607
#7
Noriaki Hasuike, Hiroyuki Ono, Narikazu Boku, Junki Mizusawa, Kohei Takizawa, Haruhiko Fukuda, Ichiro Oda, Hisashi Doyama, Kazuhiro Kaneko, Shinichiro Hori, Hiroyasu Iishi, Yukinori Kurokawa, Manabu Muto
BACKGROUND: Endoscopic resection has been limited to intestinal-type gastric cancer (cT1a) with a low risk of lymph node metastasis (T1a ≤2 cm, without ulcers). This single-arm confirmatory trial evaluated the efficacy and safety of endoscopic submucosal dissection (ESD) for >2 cm ulcer-negative and ≤3 cm ulcer-positive intestinal-type gastric cancer (cT1a). METHODS: The eligibility criteria included endoscopically diagnosed cT1a, a single primary intestinal-type gastric adenocarcinoma, an ulcer-negative lesion of any size or a ≤3 cm ulcer-positive lesion, cN0M0, and no prior treatment...
February 21, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28223233/unravelling-the-pharmacologic-opportunities-and-future-directions-for-targeted-therapies-in-gastro-intestinal-cancers-part-1-gi-carcinomas
#8
REVIEW
Cindy Neuzillet, Benoît Rousseau, Hemant Kocher, Philippe Bourget, Christophe Tournigand
Until the 1990s, cytotoxic chemotherapy has been the cornerstone of medical therapy for gastrointestinal (GI) cancers. Better understanding of the molecular biology of cancer cell has led to the therapeutic revolution of targeted therapies, i.e. monoclonal antibodies or small molecule inhibitors directed against proteins that are specifically overexpressed or mutated in cancer cells. These agents being more specific to cancer cells were expected to be less toxic than cytotoxic agents. Targeted agents have provided clinical benefit in many GI cancer types...
February 13, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28218227/p190-bcr-abl-chronic-myeloid-leukemia-following-a-course-of-s-1-plus-oxaliplatin-therapy-for-advanced-gastric-adenocarcinoma
#9
Hua Wang, Zhi-Yong Wang, Chun-Hong Xin, Ying-Hui Shang, Rui Jing, Fa-Hong Yan, Si-Zhou Feng
No abstract text is available yet for this article.
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28218204/all-that-glitters-is-not-gold-gastric-adenocarcinoma-with-medullary-pattern-presenting-as-submucosal-lesion
#10
Moaz M Choudhary, Sami Samiullah, Hadi Bhurgri, Mark A Galan, Sushil Ahlawat
No abstract text is available yet for this article.
January 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28216894/cytotoxic-activities-of-naturally-occurring-oleanane-ursane-and-lupane-type-triterpenes-on-hepg2-and-ags-cells
#11
Heejung Yang, Hyun Woo Kim, Young Choong Kim, Sang Hyun Sung
BACKGROUND: It is well known that the naturally occurring modified triterpenes in plants have a wide diversity of chemical structures and biological functions. The lupane-, oleanane-, and ursane-type triterpenes are the three major members of natural triterpenes with a wide range of biological properties. A systematic approach is necessary to review their structures and biological activities according to the backbones and the different substituents. OBJECTIVE: Thirty lupane-(L1-7), oleanane-(O1-14), and ursane-type (U1-9) triterpenes with structural diversity were examined to evaluate their cytotoxic activities against two cancer cell lines, human hepatocellular carcinoma (HepG2) and AGS cells...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28215587/surface-expression-of-helicobacter-pylori-hpaa-adhesion-antigen-on-vibrio-cholerae-enhanced-by-co-expressed-enterotoxigenic-escherichia-coli-fimbrial-antigens
#12
Joshua Tobias, Michael Lebens, Sun Nyunt Wai, Jan Holmgren, Ann-Mari Svennerholm
Helicobacter pylori infection can cause peptic ulceration and is associated with gastric adenocarcinoma. This study aimed to construct and characterize a non-virulent Vibrio cholerae O1 strain, which grows more rapidly than H. pylori, as vector for H. pylori antigens for possible use as a vaccine strain against H. pylori. This was done by recombinant expression of the H. pylori adhesion antigen HpaA alone or, as a proof of principle, together with different colonization factor (CF) antigens of enterotoxigenic Escherichia coli (ETEC) which may enhance immune responses against HpaA...
February 16, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28215096/colonic-obstruction-secondary-to-sigmoid-fecaloma-endoscopically-resolved-with-coca-cola%C3%A2
#13
Guillermo Ontanilla Clavijo, Rafael León Montañés, Yolanda Sánchez Torrijos, Teófilo López Ruiz, Juan Manuel Bozada García
BACKGROUND: Colonic obstruction is a relatively common condition in emergency care, with a mortality rate of up to 20%. In 90% of cases it results from colonic or rectal adenocarcinoma, volvulus, or stenosis secondary to diverticular disease. When fecal impaction is the underlying cause, the condition is usually managed conservatively, but may on occasion become complicated and even require surgical intervention. Based on the proven efficacy of Coca-Cola® to dissolve gastric phytobezoars, we report a case of colonic obstruction secondary to sigmoid fecaloma...
February 20, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28211946/extra-ampullary-duodenal-adenoma-a-clinicopathological-study
#14
Kazunori Hijikata, Tetsuo Nemoto, Yoshinori Igarashi, Kazutoshi Shibuya
AIM: Extra-ampullary duodenal adenoma (EADA) is a rare condition with poorly described clinicopathological details. In this study, we aimed to clinicopathologically characterize EADA. METHODS AND RESULTS: We performed a retrospective review of 44 serial cases of EADA. Each EADA was categorized as either gastric-type (n=5) or intestinal-type (n=39). All gastric-type adenomas were located in the first portion of the duodenum and exhibited a pedunculated shape. Gastric-type adenomas were classified into two subtypes: a pyloric gland type and a foveolar type...
February 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28211282/signet-ring-cell-carcinoma-of-the-jejunum-an-uncommon-finding-within-the-reach-of-capsule-endoscopy
#15
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
https://www.readbyqxmd.com/read/28210017/influence-of-prognostic-factors-for-recurrence-of-adenocarcinoma-of-the-stomach
#16
Indira Mehmedagic, Sefik Hasukic, Mirha Agic, Nedzad Kadric, Ismar Hasukic
INTRODUCTION: Gastric cancer is the second most important neoplasm in the world. Surgical resection is the treatment of choice for gastric cancer, and recognized by the International Union against Cancer (International Union Against Cancer - UICC) TNM classification of the parameters of the tumor and lymph node. Prognostic factors related to characteristics of the tumor by histopathologic findings have an impact on the planning of the operation. According to the results of most studies it is possible to predict survival and recurrence based on histological type and TNM classification of tumors on the one hand and the surgical procedure on the other...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28209611/genetic-manipulation-of-helicobacter-pylori-virulence-function-by-host-carcinogenic-phenotypes
#17
Giovanni Suarez, Judith Romero-Gallo, Johanna C Sierra, M Blanca Piazuelo, Uma Krishna, Martin Alonso Gomez, Keith T Wilson, Richard M Peek
Helicobacter pylori is the strongest risk factor for gastric adenocarcinoma, yet only a minority of infected persons ever develop this malignancy. One cancer-linked locus is the cag type 4 secretion system (cagT4SS), which translocates an oncoprotein into host cells. A structural component of the cagT4SS is CagY, which become rapidly altered during in vivo adaptation in mice and rhesus monkeys, rendering the cagT4SS nonfunctional; however, these models rarely develop gastric cancer. We previously demonstrated that the H...
February 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28207537/lymph-node-dissection-for-siewert-ii-esophagogastric-junction-adenocarcinoma-a-retrospective-study-of-3-surgical-procedures
#18
Xiao-Feng Duan, Jie Yue, Peng Tang, Xiao-Bin Shang, Hong-Jing Jiang, Zhen-Tao Yu
The present study was aimed to investigate the application of right thansthoracic Ivor-Lewis (IL), left transthoracic (LTT), and left thoracoabdominal (LTA) approach in Siewert type II adenocarcinoma of esophagogastric junction (AEG).The data of 196 patients with Siewert type II AEG received surgical resection in our cancer center between January 2014 and April 2016 was retrospectively analyzed. Finally, 136 patients met the inclusion criteria were enrolled in the study and divided into the IL (47 cases), LTT (51 cases), and LTA group (38 cases)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28206968/intratumoral-lactate-metabolism-in-barrett-s-esophagus-and-adenocarcinoma
#19
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/28205057/comparative-effectiveness-of-adjuvant-chemoradiotherapy-after-gastrectomy-among-older-patients-with-gastric-adenocarcinoma-a-seer-medicare-study
#20
Jennifer M Yeh, Angela C Tramontano, Chin Hur, Deborah Schrag
BACKGROUND: Since the INT-0116 trial reported a survival advantage, postoperative chemoradiotherapy (CRT) has been a care standard for US patients in whom gastric adenocarcinoma has been diagnosed. We sought to estimate the association between treatment and survival among the older US Medicare population. METHODS: This is a retrospective cohort study of Medicare beneficiaries aged 65-79 years with stage IB-III gastric adenocarcinoma diagnosed between 2002 and 2009 in a Surveillance, Epidemiology, and End Results region...
February 15, 2017: Gastric Cancer
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