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https://www.readbyqxmd.com/read/29345408/the-effect-of-eradication-of-helicobacter-pylori-on-gastric-cancer-prevention-in-healthy-asymptomatic-populations
#1
Suh Eun Bae, Kee Don Choi, Jaewon Choe, Seon Ok Kim, Hee Kyong Na, Ji Young Choi, Ji Yong Ahn, Kee Wook Jung, JeongHoon Lee, Do Hoon Kim, Hye-Sook Chang, Ho June Song, Gin Hyug Lee, Hwoon-Yong Jung
BACKGROUND: Although many epidemiologic studies have evaluated the effect of Helicobacter pylori eradication on gastric cancer, the effect is still uncertain in general populations. We evaluated whether H. pylori eradication would affect the incidence of gastric cancer in healthy asymptomatic populations. MATERIALS AND METHODS: We performed a retrospective cohort study in 38 984 asymptomatic individuals, who underwent health screening examinations more than twice between 2005 and 2016...
January 18, 2018: Helicobacter
https://www.readbyqxmd.com/read/29342273/hypermethylation-of-eif4e-promoter-is-associated-with-early-onset-of-gastric-cancer
#2
Yuqiu Ge, Qin Wu, Gaoxiang Ma, Wei Shao, Hanting Liu, Qiang Zhang, Junyi Xin, Yao Xue, Mulong Du, Qinghong Zhao, Meilin Wang, Haiyan Chu, Zhengdong Zhang
Although gastric cancer (GC) in young adults (≤ 45 years) accounts for fewer than 10% of newly diagnosed cases, the young patients are more likely to have advanced disease at presentation compared with elderly patients. Previous studies have identified that the DNA methylation of genomes are different during aging. Our study aimed to explore the association between DNA methylation and the onset of GC. We applied Illumina HumanMethylation450 BeadChip to examine methylation expression profiles and compared methylation expression patterns in five early onset GC patients and seven elderly patients...
January 12, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29330337/role-of-germline-aberrations-affecting-ctnna1-map3k6-and-myd88-in-gastric-cancer-susceptibility
#3
Robbert D A Weren, Rachel S van der Post, Ingrid P Vogelaar, J Han van Krieken, Liesbeth Spruijt, Jan Lubinski, Anna Jakubowska, Urszula Teodorczyk, Cora M Aalfs, Liselotte P van Hest, Carla Oliveira, Eveline J Kamping, Hans K Schackert, Guglielmina N Ranzani, Encarna B Gómez García, Frederik J Hes, Elke Holinski-Feder, Maurizio Genuardi, Margreet G E M Ausems, Rolf H Sijmons, Anja Wagner, Lizet E van der Kolk, Annemieke Cats, Inga Bjørnevoll, Nicoline Hoogerbrugge, Marjolijn J L Ligtenberg
BACKGROUND: In approximately 10% of all gastric cancer (GC) cases, a heritable cause is suspected. A subset of these cases have a causative germline CDH1 mutation; however, in most cases the cause remains unknown. Our objective was to assess to what extent these remaining cases may be explained by germline mutations in the novel candidate GC predisposing genes CTNNA1, MAP3K6 or MYD88. METHODS: We sequenced a large cohort of unexplained young and/or familial patients with GC (n=286) without a CDH1germline mutation for germline variants affecting CTNNA1, MAP3K6 and MYD88 using a targeted next-generation sequencing approach based on single-molecule molecular inversion probes...
January 12, 2018: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29329569/effect-of-total-number-of-harvested-lymph-nodes-on-survival-outcomes-after-curative-resection-for-gastric-adenocarcinoma-findings-from-an-eastern-high-volume-gastric-cancer-center
#4
Shiela S Macalindong, Kwang Hee Kim, Byung-Ho Nam, Keun Won Ryu, Norihito Kubo, Ja Yeon Kim, Bang Wool Eom, Hong Man Yoon, Myeong-Cherl Kook, Il Ju Choi, Young Woo Kim
BACKGROUND: Greater lymph node retrieval in gastric cancer improves staging accuracy and may improve survival from increased clearance of nodal micrometastasis. This retrospective cohort study investigated if more lymph nodes removed in gastric cancer increases survival and if such effect is stage-specific due to differential risks of nodal micrometastasis and systemic disease. METHODS: The prospectively collected database of curatively resected gastric cancer patients in National Cancer Center, South Korea between 2000 and 2009 was reviewed...
January 12, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29302369/long-term-follow-up-for-type-2-diabetes-mellitus-after-gastrectomy-in-non-morbidly-obese-patients-with-gastric-cancer-the-legitimacy-of-onco-metabolic-surgery
#5
Tae-Hoon Lee, Chang Min Lee, Sungsoo Park, Do Hyun Jung, You Jin Jang, Jong-Han Kim, Seong-Heum Park, Young-Jae Mok
Purpose: This study primarily aimed to investigate the short- and long-term remission rates of type 2 diabetes (T2D) in patients who underwent surgical treatment for gastric cancer, especially patients who were non-obese, and secondarily to determine the potential factors associated with remission. Materials and Methods: We retrospectively reviewed the clinical records of patients with T2D who underwent radical gastrectomy for gastric cancer, from January 2008 to December 2012...
December 2017: Journal of Gastric Cancer
https://www.readbyqxmd.com/read/29294595/should-asymptomatic-young-men-with-iron-deficiency-anemia-necessarily-undergo-endoscopy
#6
Nam Hee Kim, Jung Ho Park, Dong Il Park, Chong Il Sohn, Kyuyong Choi, Yoon Suk Jung
Background/Aims: There has been no evidence for the necessity of endoscopy in asymptomatic young men with iron deficiency anemia (IDA). To determine whether endoscopy should be recommended in asymptomatic young men with IDA, we compared the prevalence of gastrointestinal (GI) lesions between young men (< 50 years) with IDA and those without IDA. Methods: We conducted a case-control study on asymptomatic young men aged < 50 years who underwent both esophagogastroduodenoscopy (EGD) and colonoscopy as part of a health checkup between 2010 and 2014...
January 5, 2018: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29285644/designation-of-fingerprint-glycopeptides-for-targeted-glycoproteomic-analysis-of-serum-haptoglobin-insights-into-gastric-cancer-biomarker-discovery
#7
Jua Lee, Serenus Hua, Sung Hyeon Lee, Myung Jin Oh, Jaekyung Yun, Jin Young Kim, Jae-Han Kim, Jung Hoe Kim, Hyun Joo An
Gastric cancer (GC) is one of the leading causes of cancer-related death worldwide, largely because of difficulties in early diagnosis. Despite accumulating evidence indicating that aberrant glycosylation is associated with GC, site-specific localization of the glycosylation to increase specificity and sensitivity for clinical use is still an analytical challenge. Here, we created an analytical platform with a targeted glycoproteomic approach for GC biomarker discovery. Unlike the conventional glycomic approach with untargeted mass spectrometric profiling of released glycan, our platform is characterized by three key features: it is a target-protein-specific, glycosylation-site-specific, and structure-specific platform with a one-shot enzyme reaction...
December 29, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29285394/c-c-motif-chemokine-receptors-in-gastric-cancer
#8
Hyewon Ryu, Seung Woo Baek, Ji Young Moon, In-Sook Jo, Nayoung Kim, Hyo Jin Lee
Gastric cancer is the fifth most common cancer and the third leading cause of cancer-associated mortality worldwide. Despite recent advances in molecular and clinical research, patients with gastric cancer at an advanced stage have a dismal prognosis and poor survival rates, and systemic treatment relies predominantly on traditional cytotoxic chemotherapy. To improve patients' quality of life and survival, an improved understanding of the complex molecular mechanisms involved in gastric cancer progression and treatment resistance, and of its clinical application in the development of novel targeted therapies, is urgently required...
January 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29285287/mertk-inhibition-by-rxdx-106-in-mertk-activated-gastric-cancer-cell-lines
#9
Jung Eun Kim, Youjin Kim, Gary Li, Seung Tae Kim, Kyung Kim, Se Hoon Park, Joon Oh Park, Young Suk Park, Ho Yeong Lim, Hyuk Lee, Tae Sung Sohn, Kyoung-Mee Kim, Won Ki Kang, Jeeyun Lee
RXDX-106 is a potent and selective type II pseudo-irreversible (slow off-rate) inhibitor of TYRO3, AXL, MER and c-MET. MER tyrosine kinase (MerTK) is expressed in a variety of malignancies, including gastric cancer (GC). The oncogenic potential of MerTK is supported by various lines of evidence. First, we surveyed 10 GC cell lines for MerTK protein overexpression and MerTk phosphorylation. We next evaluated the change of downstream signaling molecules including (p)-ERK and (p)-AKT, following RXDX-106 treatment...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29282635/endoscopic-submucosal-dissection-of-early-gastric-cancer-in-patients-with-liver-cirrhosis
#10
Won Hyeok Choe, Jeong Hwan Kim, Jung Ho Park, Heung Up Kim, Dae Hyeon Cho, Sang Pyo Lee, Tae Yoon Lee, Sun-Young Lee, In Kyung Sung, Hyung Seok Park, Chan Sup Shim
BACKGROUND AND OBJECTIVES: Endoscopic submucosal dissection (ESD) has become widely accepted method for treating early gastric cancer (EGC), but little is known about its role in patients with liver cirrhosis (LC). The aims of this study were to evaluate the outcomes of ESD in treating EGC in patients with LC. METHODS: The multicenter retrospective study identified 43 patients with chronic hepatitis B (CHB)-related cirrhosis undergoing ESD for treating EGC. The patients (LC group) were subdivided into two groups based on their Child-Pugh classification (CP-class): 32 with CP-class A (LC-A) and 11 with CP-class B (LC-B)...
December 27, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29277785/establishment-of-a-patient-derived-xenograft-for-development-of-personalized-her2-targeting-therapy-in-gastric-cancer
#11
Seol Hwa Shin, Seok Soon Park, Eun Jin Ju, Jin Park, Eun Jeong Ko, Jung Jin Hwang, Young-Ah Suh, Se Jin Jang, Jung Shin Lee, Bong-Kook Ko, Kyu-Tae Kim, Jong-Seo Lee, Si Yeol Song, Seong-Yun Jeong, Eun Kyung Choi
BACKGROUND/AIM: To maximize success rate for development of HER2-targeted therapeutics, patient-derived xenograft (PDX) models reflecting HER2-positive gastric cancer (HER2+ GC) patients were established. MATERIALS AND METHODS: GC tissues obtained from surgery of GC patients were implanted into immune-deficient mice, and tumor tissue of HER2+ PDXs were verified of the patient-mimic HER2 expression by immunohistochemistry and explored for the feasibility by testing with Herceptin, the approved therapeutics and novel HER2 antibody therapeutics being developed...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29261768/the-longest-diameter-of-tumor-as-a-parameter-of-endoscopic-resection-in-early-gastric-cancer-in-comparison-with-tumor-area
#12
Yoo Jin Um, Hae Won Kim, Da Hyun Jung, Jie-Hyun Kim, Jae Jun Park, Young Hoon Youn, Hyojin Park, Jong Won Kim, Seung Ho Choi, Sung Hoon Noh
BACKGROUND AND AIM: Tumor burden is important to predict clinical behaviors of cancer such as lymph node metastasis (LNM). Tumor size has been used as a parameter of tumor burden such as indication of endoscopic resection in early gastric cancer (EGC) to predict LNM. Thus, we aimed to investigate whether tumor area can be more helpful to predict clinical behaviors than longest diameter of tumor in EGC. PATIENTS AND METHODS: 3,059 patients who underwent gastrectomy for EGC were reviewed retrospectively...
2017: PloS One
https://www.readbyqxmd.com/read/29259270/ifn%C3%AE-induces-pd-l1-overexpression-by-jak2-stat1-irf-1-signaling-in-ebv-positive-gastric-carcinoma
#13
Ji Wook Moon, Su-Kang Kong, Byung Soo Kim, Hyun Ji Kim, Hyangsoon Lim, Kyeonga Noh, Younghye Kim, Jung-Woo Choi, Ju-Han Lee, Young-Sik Kim
Programmed death-ligand 1 (PD-L1) acts as an immune checkpoint inhibitor in various cancers. PD-L1 is known to be more frequently expressed in EBV (+) gastric cancer (GC). However, the mechanisms underlying the regulation of PD-L1 expression in EBV (+) GC remain unclear. We investigated the basal and inducible PD-L1 expressions in GC cells. PD-L1 expression was upregulated upon treatment with IFNγ in both EBV (-) and EBV (+) GC cells. Upon stimulation with the same concentration of IFNγ for 24 h, EBV (+) SNU-719 cells showed dramatically higher PD-L1 expression levels by activating JAK2/STAT1/IRF-1 signaling than those of EBV (-) AGS cells...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29246904/homologous-recombination-deficiency-and-platinum-based-therapy-outcomes-in-advanced-breast-cancer
#14
Eric Y Zhao, Yaoqing Shen, Erin Pleasance, Katayoon Kasaian, Sreeja Leelakumari, Martin Jones, Pinaki Bose, Carolyn Ch'ng, Caralyn Reisle, Peter Eirew, Richard Corbett, Karen L Mungall, Nina Thiessen, Yussanne Ma, Jacqueline E Schein, Andrew J Mungall, Yongjun Zhao, Richard A Moore, Wendie Den Brok, Sheridan Wilson, Diego Villa, Tamara Shenkier, Caroline Lohrisch, Stephen Chia, Stephen Yip, Karen Gelmon, Howard Lim, Daniel Renouf, Sophie Sun, Kasmintan A Schrader, Sean Young, Ian Bosdet, Aly Karsan, Janessa Laskin, Marco A Marra, Steven J M Jones
Purpose: Recent studies have identified mutation signatures of homologous recombination deficiency (HRD) in over 20% of breast cancers, as well as pancreatic, ovarian, and gastric cancers. There is an urgent need to understand the clinical implications of HRD signatures. Whereas BRCA1/2 mutations confer sensitivity to platinum-based chemotherapies, it is not yet clear whether mutation signatures can independently predict platinum response.Experimental Design: In this observational study, we sequenced tumor whole genomes (100× depth) and matched normals (60×) of 93 advanced-stage breast cancers (33 platinum-treated)...
December 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29234547/testicular-cancer-presenting-as-gastric-variceal-hemorrhage
#15
Carlos Eduardo Salazar-Mejía, David Hernández-Barajas, Edio Llerena-Hernández, José Luis González-Vela, María Inés Contreras-Salcido, Adriana González-Gutiérrez, Omar David Borjas-Almaguer, Luis Alberto Pérez-Arredondo, Blanca Otilia Wimer-Castillo
Testicular cancer is the most common solid malignancy affecting males between the ages of 15 and 35. The symptomatology caused by this tumor varies according to the site of metastasis. We present the case of a 26-year-old male who arrived to the emergency department with hematemesis. He had no previous medical history. On arrival, we noted enlargement of the left scrotal sac. There was also a mass in the left scrotum which provoked displacement of the penis and right testis. The serum alpha-fetoprotein level was 17,090 ng/mL, lactate dehydrogenase was 1480 U/L, and human chorionic gonadotropin was 287...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/29228595/age-specific-impact-on-the-survival-of-gastric-cancer-patients-with-distant-metastasis-an-analysis-of-seer-database
#16
Xinxing Li, Weijun Wang, Canping Ruan, Yi Wang, Haolu Wang, Xiaowen Liang, Yanping Sun, Zhiqian Hu
The age-specific impact on the survival of gastric cancer patients with distant metastasis is still unclear. In this study, we identified 11, 299 gastric cancer patients with distant metastasis between 2004 and 2013 from Surveillance, Epidemiology, and End Results population-based dataset. Patients were divided into young (≤60) and elderly groups (>60). Kaplan-Meier methods and multivariable Cox regression were used for the analysis of long-term survival outcomes and risk factors. There were significant differences between the two groups in terms of race, primary site, grade, histologic type, surgery, marital status and clinical T stage (P<0...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228560/mertk-is-a-novel-therapeutic-target-in-gastric-cancer
#17
Jun Ho Yi, Jiryeon Jang, Jeonghee Cho, In-Gu Do, Mineui Hong, Seung Tae Kim, Kyoung-Mee Kim, Sujin Lee, Se Hoon Park, Joon Oh Park, Young Suk Park, Won Ki Kang, Ho Yeong Lim, Jeeyun Lee
Introduction: The role of MerTK has not been assessed in gastric cancer (GC). The aim of this study was to identify a subgroup of GC patients with MerTK tumor overexpression, and to evaluate MerTK as a potential therapeutic target in this disease. Methods: Protein and mRNA expression of MerTK were evaluated, and other various in vitro analyses including shRNA transfection, cell cycle anslysis, MTS assay and colony forming assay were carried out with GC cell lines and GC patient-derived cells (PDCs)...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29226597/prognostic-significance-of-interim-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-volumetric-parameters-in-metastatic-or-recurrent-gastric-cancer
#18
Suk-Young Lee, Hyo Jung Seo, Sungeun Kim, Jae Seon Eo, Sang Cheul Oh
AIM: To evaluate the prognostic role of interim analysis of 18F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET/CT) volumetric parameters in patients with recurrent or metastatic advanced gastric cancer (AGC) treated with fluoropyrimidine-based palliative chemotherapy. METHODS: Forty-four patients who underwent baseline and interim PET/CT scanning during palliative chemotherapy were analyzed retrospectively. Initial and change of metabolic parameters (MP) - metabolic tumor volume (MTV), tumor lesion glycolysis (TLG) and maximum and mean standardized uptake values (SUV) were measured with PET/CT...
December 10, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29216250/a-randomized-controlled-trial-of-roux-en-y-gastrojejunostomy-vs-gastroduodenostomy-with-respect-to-the-improvement-of-type-2-diabetes-mellitus-after-distal-gastrectomy-in-gastric-cancer-patients
#19
RANDOMIZED CONTROLLED TRIAL
Yoon Young Choi, Sung Hoon Noh, Ji Yeong An
The purpose of this study is to compare the effect of diabetes control induced by Roux-en-Y gastrojejunostomy(RY) vs Billroth-I reconstruction(BI) after distal gastrectomy in patients with early gastric cancer(EGC) and type 2 diabetes(T2DM). Forty EGC patients with T2DM, aged 20-80 years, who were expected to undergo curative distal gastrectomy were randomized 1:1 to RY(n = 20) or BI(n = 20). Diabetes medication status, biochemical and hormonal data including blood glucose, HbA1c, insulin, C-peptide, HOMA-IR, ghrelin, leptin, GLP-1, PYY, and GIP were evaluated for 12 months after surgery...
2017: PloS One
https://www.readbyqxmd.com/read/29202657/a-case-of-gastric-cancer-metastasis-to-the-breast-in-a-female-with-brca2-germline-mutation-and-literature-review
#20
Audrius Dulskas, Mahdi Al Bandar, Yoon Young Choi, Su-Jin Shin, Seung-Hoon Beom, Taeil Son, Hyung-Il Kim, Jae-Ho Cheong, Woo Jin Hyung, Sung Hoon Noh
INTRODUCTION: Gastric cancer is a deadly disease. Common sites of distant metastasis of gastric cancer are the peritoneum, liver, lymph nodes, and lung. The breast is a rare site of metastasis in gastric cancer which occurs in males dominantly. PATIENTS AND METHODS: Here, we report the first case of metastatic gastric cancer to the breast in a patient with the breast cancer 2 (BRCA2) germline mutation. A 34-year-old female was admitted to the hospital with dyspepsia and a palpable mass in the left breast...
December 5, 2017: Acta Chirurgica Belgica
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