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screening gastric cancer

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https://www.readbyqxmd.com/read/27894325/identification-of-col1a1-and-col1a2-as-candidate-prognostic-factors-in-gastric-cancer
#1
Jun Li, Yuemin Ding, Aiqing Li
BACKGROUND: The role of type I collagen, composed of collagen type I alpha 1 (COL1A1) and collagen type I alpha 2 (COL1A2), has been studied in several cancers. However, the expression of COL1A1 and COL1A2 in malignant, premalignant, and normal gastric tissues and their clinical significances in gastric cancer have not been elucidated. METHODS: Real-time quantitative PCR was performed in 55 malignant, 27 premalignant, and 19 normal tissues to measure COL1A1 and COL1A2 messenger RNA (mRNA) expression, and the correlations between COL1A1 and COL1A2 expression and clinicopathological parameters and patients' survival rate were analyzed...
November 29, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27880784/cdh1-missense-variant-c-1679c-g-p-t560r-completely-disrupts-normal-splicing-through-creation-of-a-novel-5-splice-site
#2
Zarina Yelskaya, Ruben Bacares, Erin Salo-Mullen, Joshua Somar, Deborah A Lehrich, Grace-Ann Fasaye, Daniel G Coit, Laura H Tang, Zsofia K Stadler, Liying Zhang
Disease-causing germline mutations in CDH1 cause Hereditary Diffuse Gastric Cancer (HDGC). For patients who meet the HDGC screening criteria, the identification and classification of the sequence variants found in CDH1 are critical for risk management of patients. In this report, we describe a germline CDH1 c.1679C>G (p.T560R) variant identified in a 50 year old man who was diagnosed with gastric cancer with a strong family history of gastric cancer (one living brother was diagnosed with gastric cancer at 63 and another brother died of gastric cancer at 45)...
2016: PloS One
https://www.readbyqxmd.com/read/27875523/a-protein-fragment-derived-from-dna-topoisomerase-i-as-a-novel-tumour-associated-antigen-for-the-detection-of-early-stage-carcinoma
#3
Shang-Mian Yie, Shang-Rong Ye, Xiao-Li Ma, Ke Xie, Jian-Bo Zhang, Mei Cao, Xu He, Zhen-Bo Hu, Cheng-Lu Yang, Jia Zhang, Jie Zeng
BACKGROUND: The production of autoantibodies against tumour-associated antigens (TAAs) is believed to reflect greater immunologic reactivity in cancer patients and enhanced immune surveillance for cancer cells. Over the past few decades, a number of different TAAs and their corresponding autoantibodies have been investigated. However, positive frequency of autoantibody detection in cancer patients has been relatively low. Here we describe a novel TAA that was a fragment derived from human DNA-topoiomerase I and an autoantibody against the novel TAA with relatively high positive frequency in the sera of early-stage non-small-cell lung cancer (NSCLC), gastric cancer (GC), colorectal cancer (CRC) and oesophageal squamous cell carcinoma (ESCC)...
November 22, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27871067/the-lncrna-snhg5-mir-32-axis-regulates-gastric-cancer-cell-proliferation-and-migration-by-targeting-klf4
#4
Lianmei Zhao, Taotao Han, Yanshuang Li, Jiazeng Sun, Shang Zhang, Yanxin Liu, Baoen Shan, Dexian Zheng, Juan Shi
Long noncoding RNAs (lncRNAs) are emerging as important regulators in cellular processes, including the development, proliferation, and migration of cancer cells. We have demonstrated in a prior study that small nucleolar RNA host gene 5 (SNHG5) is dysregulated in gastric cancer (GC). To further explore the underlying mechanisms of SNGH5 function in the development of GC, in this study, we screened the microRNAs interacting with SNHG5 and elucidated their roles in GC. We showed that SNHG5 contains a putative miR-32-binding site and that deletion of this site abolishes the responsiveness to miR-32...
November 21, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27853354/development-of-novel-her2-inhibitors-against-gastric-cancer-derived-from-flavonoid-source-of-syzygium-alternifolium-through-molecular-dynamics-and-pharmacophore-based-screening
#5
Tirumalasetty Muni Chandra Babu, Aluru Rammohan, Vijaya Bhaskar Baki, Savita Devi, Duvvuru Gunasekar, Wudayagiri Rajendra
Continuous usage of synthetic chemotherapeutic drugs causes adverse effects, which prompted for the development of alternative therapeutics for gastric cancer from natural source. This study was carried out with a specific aim to screen gastroprotective compounds from the fruits of Syzygium alternifolium (Myrtaceae). Three flavonoids, namely, 1) 5-hydroxy-7,4'-dimethoxy-6,8-di-C-methylflavone, 2) kaempferol-3-O-β-d-glucopyranoside, and 3) kaempferol-3-O-α-l-rhamnopyranoside were isolated from the above medicinal plant by employing silica gel column chromatography and are characterized by NMR techniques...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27833855/overexpression-of-klhl23-protein-from-read-through-transcription-of-phospho2-klhl23-in-gastric-cancer-increases-cell-proliferation
#6
Eun-Seok Choi, Hanna Lee, Chang-Hun Lee, Sung-Ho Goh
Gene fusion, as a prototypical pathognomonic mutation, contributes to genome complexity, and the cis-transcription-induced gene fusions generated by read-through transcription of adjacent genes have been found to be important for tumor development. We screened read-through transcription events from stomach adenocarcinoma RNA-seq data and selected three candidates PHOSPHO2-KLHL23, RPL17-C18orf32, and PRR5-ARHGAP8, to assess their biological role in gastric cancer. The expression of all three read-through fusion transcripts was confirmed in gastric cancer cell lines and paired normal/tumor gastric cancer tissues by real-time quantitative reverse transcription polymerase chain reaction and their expression was found to be significantly higher in the tumor (P < 0...
November 2016: FEBS Open Bio
https://www.readbyqxmd.com/read/27832499/cancer-screening-behaviors-and-risk-perceptions-among-family-members-of-colorectal-cancer-patients-with-unexplained-mismatch-repair-deficiency
#7
Lior H Katz, Shailesh Advani, Allison M Burton-Chase, Bryan Fellman, Katrina M Polivka, Ying Yuan, Patrick M Lynch, Susan K Peterson
Communication gaps in families with unexplained mismatch repair (MMR) deficiency (UMMRD) could negatively impact the screening behaviors of relatives of individual with UMMRD. We evaluated cancer risk perception, screening behaviors, and family communication among relatives of colorectal cancer (CRC) patients with UMMRD. Fifty-one family members of 17 probands with UMMRD completed a questionnaire about cancer risk perception, adherence to Lynch syndrome (LS) screening recommendations, and communication with relatives...
November 10, 2016: Familial Cancer
https://www.readbyqxmd.com/read/27829861/itraq-based-proteomic-analysis-of-ginsenoside-f2-on-human-gastric-carcinoma-cells-sgc7901
#8
Qian Mao, Pin-Hu Zhang, Jie Yang, Jin-Di Xu, Ming Kong, Hong Shen, He Zhu, Min Bai, Li Zhou, Guang-Fu Li, Qiang Wang, Song-Lin Li
Ginsenoside F2 (F2), a protopanaxdiol type of saponin, was reported to inhibit human gastric cancer cells SGC7901. To better understand the molecular mechanisms of F2, an iTRAQ-based proteomics approach was applied to define protein expression profiles in SGC7901 cells in response to lower dose (20 μM) and shorter duration (12 hour) of F2 treatment, compared with previous study. 205 proteins were screened in terms of the change in their expression level which met our predefined criteria. Further bioinformatics and experiments demonstrated that F2 treatment downregulated PRR5 and RPS15 and upregulated RPL26, which are implicated in ribosomal protein-p53 signaling pathway...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27829519/synthesis-biological-evaluation-qsar-and-molecular-dynamics-simulation-studies-of-potential-fibroblast-growth-factor-receptor-1-inhibitors-for-the-treatment-of-gastric-cancer
#9
Shilong Ying, Xiaojing Du, Weitao Fu, Di Yun, Liping Chen, Yuepiao Cai, Qing Xu, Jianzhang Wu, Wulan Li, Guang Liang
Accumulating evidence suggests that fibroblast growth factor receptor 1 (FGFR1) is an attractive target in gastric cancer therapy. Based on our previous discovery of two non-ATP competitive FGFR1 inhibitors, A114 and A117, we designed and screened a series of compounds with the framework of bisaryl-1,4-dien-3-one. Among them, D12 and D15 exhibited the most potent FGFR1 inhibitory activity, which was ATP-independent. Furthermore, a quantitative structure-activity relationship analysis of 41 analogs demonstrated that the specific structural substitutions alter their bioactivities...
November 1, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27821077/a-case-series-of-intestinal-adenomatous-polyposis-of-unidentified-etiology-a-late-effect-of-irradiation
#10
Lisanne Sara Rigter, Frank G J Kallenberg, Barbara Bastiaansen, Theo A M van Os, Floor E van Leeuwen, Monique Esther van Leerdam, Evelien Dekker
BACKGROUND: In a large number of patients with multiple gastrointestinal adenomatous polyps, no causal germline mutation can be found. Non-genetic factors may contribute to the development of adenomatous polyps in these unexplained polyposis patients. In the development of gastrointestinal cancer, prior exposure to abdominal radiotherapy has been identified as such a factor, as it increases the gastrointestinal cancer risk in cancer survivors. A relationship of radiotherapy with intestinal polyposis, however, has not yet been described...
November 8, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27818928/effect-of-hydrogen-bond-formation-replacement-on-solubility-characteristics-gastric-permeation-and-pharmacokinetics-of-curcumin-by-application-of-powder-solution-technology
#11
Vijay Sharma, Kamla Pathak
The present research aimed to improve the dissolution rate and bioavailability of curcumin using the potential of liquisolid technology. Twelve drug-loaded liquisolid systems (LS-1 to LS-12) were prepared using different vehicles (PEG 200, PEG 400 and Tween 80) and curcumin concentrations in vehicle (40%, 50%, 60% and 70%, w/w). The carrier [microcrystalline cellulose (MCC) PH102] to coat (Aerosil(®)) ratio was 20 in all formulations. The systems were screened for pre-compression properties before being compressed to liquisolid tablets (LT-1 to LT-12)...
November 2016: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/27811012/her2-status-in-advanced-or-metastatic-gastric-esophageal-or-gastro-esophageal-adenocarcinoma-for-entry-to-the-trio-013-logic-trial-of-lapatinib
#12
Michael F Press, Catherine E Ellis, Robert C Gagnon, Tobias J Grob, Marc Buyse, Ivonne Villalobos, Zhiyong Liang, Shafei Wu, Yung-Jue Bang, Shu-Kui Qin, Hyun Cheol Chung, Jianming Xu, Joon Oh Park, Krzysztof Jeziorski, Karen Afenjar, Yanling Ma, Monica C Estrada, Douglas M Robinson, Stefan J Scherer, Guido Sauter, J Randolph Hecht, Dennis J Slamon
HER2/ERBB2 status is used to select patients for HER2-targeted therapy. HER2/ERBB2 amplification/overexpression of upper gastrointestinal (UGI) adenocarcinomas was determined locally or in two central laboratories to select patients for the TRIO-013/LOGiC trial of chemotherapy with or without lapatinib. Patients selected locally had central laboratory confirmation of HER2-amplification for inclusion in the primary efficacy population. HER2 was assessed with PathVysion or IQ PharmDx fluorescence in situ hybridization (FISH) and HercepTest immunohistochemistry assays...
November 3, 2016: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/27798873/a-panel-of-serum-biomarkers-gastropanel%C3%A2-in-non-invasive-diagnosis-of-atrophic-gastritis-systematic-review-and-meta-analysis
#13
Kari Syrjänen
BACKGROUND/AIM: To meet the increasing demand of non-invasive tests for screening of gastric cancer (GC) risk, biomarker panel (GastroPanel®) (GP) was designed by Biohit Oyj as the first serological test for stomach health. The aim of the present study was to perform a systematic review and meta-analysis of all studies on GP in diagnosis of atrophic gastritis (AG). MATERIALS AND METHODS: Studies were eligible, if i) GP was used to diagnose biopsy-confirmed AG of the corpus (AGC) and/or antrum (AGA) and ii) exact numbers were available to enable calculating sensitivity (SE) and specificity (SP)...
October 2016: Anticancer Research
https://www.readbyqxmd.com/read/27797257/diagnostic-power-of-blood-parameters-as-screening-markers-in-gastric-cancer-patients
#14
Lukasz Pietrzyk, Zbigniew Plewa, Marta Denisow-Pietrzyk, Remigiusz Zebrowski, Kamil Torres
BACKGROUND: Gastric cancer (GC) is the fifth most common cancer worldwide. Since development is usually asymptomatic, it is generally diagnosed at an advanced stage. The value of screening in patients with nonspecific symptoms for GC is controversial. AIM: The study aimed to evaluate whether hematological parameters (platelet count (PC), mean platelet volume (MPV), MPV/PC ratio, red blood cell distribution width (RDW), neutrophil to lymphocyte ratio (NLR), and platelet to lymphocyte ratio (PLR)) are useful markers to differentiate between gastric cancer patients and healthy individuals...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27785709/alcoholic-liver-disease-is-associated-with-an-increased-risk-of-gastric-cancer
#15
Tae Hoon Ha, Byeong Gwan Kim, Donghyong Jeong, Sohee Oh, Won Kim, Yong Jin Jung, Dong Won Ahn, Ji Bong Jeong, Ji Won Kim, Kook Lae Lee, Seong-Joon Koh
BACKGROUND: Little information is available regarding the relationship between alcoholic liver diseases (ALD) and the development of gastric neoplasia. AIM: The aim of this study was to examine whether ALD is associated with the increased risk of gastric neoplasia. METHODS: We reviewed the medical records 514 patients diagnosed with ALD at Seoul Metropolitan Government Boramae Hospital between January 2000 and December 2011. Control subjects were selected by using propensity score matching (age, sex, and body mass index) from 8190 members of the general population who underwent EGD for screening for gastric neoplasia at Boramae Health Promotion Center during the study period...
October 26, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27785057/downregulation-of-aldob-is-associated-with-poor-prognosis-of-patients-with-gastric-cancer
#16
Jun He, Yi Jin, Yuan Chen, Hai-Bo Yao, Ying-Jie Xia, Ying-Yu Ma, Wei Wang, Qin-Shu Shao
OBJECTIVES: To examine the expression of ALDOB in gastric cancer (GC) tissue and to reveal its potential clinicopathological and prognostic significance. MATERIALS AND METHODS: We screened for genes that were differentially expressed between GC and nontumor tissues using a microarray, specifically the Affymetrix U133 Plus 2.0 Array platform. We then verified the transcriptional and translational levels of ALDOB by performing quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry (IHC)...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27783407/efficient-pkc-inhibitor-screening-achieved-using-a-quantitative-ce-lif-assay
#17
Binh Thanh Nguyen, Min Park, Jae-Chul Pyun, Young Sook Yoo, Min-Jung Kang
An assay for protein kinase C delta (PKCδ) activity based on the quantification of a synthetic substrate using capillary electrophoresis with laser-induced fluorescence detection was developed. The peptides labeled with fluorescein isothiocyanate F-ERK (where ERK is extracellular signal-regulated kinase) and the phosphorylated form, P-F-ERK, were utilized for the method development and validation. The migration time of F-ERK and P-F-ERK were 6.3 ± 0.1 and 8.7 ± 0.2 min, respectively. LOD and LOQ values of F-ERK were 2 and 6 ng/mL and those of P-F-ERK were 4 and 12 ng/mL...
October 26, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27781256/-expression-of-tumor-necrosis-factor-like-weak-inducer-of-apoptosis-in-patients-with-gastric-cancer-and-its-relationship-with-nutritional-status
#18
Hang Lu, Yuanshui Sun
OBJECTIVE: To investigate the expression of tumor necrosis factor-like weak inducer of apoptosis (TWEAK) in the serum and the rectus abdominis muscle in patients with gastric cancer and its relationship with the nutritional status. Method Clinical data of 102 patients with gastric cancer (gastric cancer group) and 53 patients with benign abdominal disease (control group) who were admitted to Zhejiang Province People's Hospital from January 2008 to October 2013 were analyzed retrospectively...
October 25, 2016: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27780852/high-throughput-screening-identifies-mir-451-as-a-pleiotropic-modulator-that-suppresses-gastric-cancer-metastasis
#19
Wendao You, Liang Xu, Xing Zhang, Huan Zou, Dongtao Shi, Hanshuo Zhang, Juan Li, Weichang Chen, Rui Li
MicroRNAs (miRNAs) are globally dysregulated in human carcinomas. However, the specific miRNAs that mediate gastric cancer metastasis have not been identified. We identified 100 miRNAs that are dysregulated in gastric cancer and used a self-assembled cell microarray method to systematically evaluate their capacity to regulate cell migration. MiR-451, which is down-regulated in human gastric cancer samples, potently modulated multiple metastatic phenotypes including cell migration, invasion, proliferation, and epithelial-mesenchymal transition...
October 25, 2016: Journal of Laboratory Automation
https://www.readbyqxmd.com/read/27769562/concomitant-bismuth-quadruple-and-14-day-triple-therapy-in-the-first-line-treatment-of-helicobacter-pylori-a-multicentre-open-label-randomised-trial
#20
Jyh-Ming Liou, Yu-Jen Fang, Chieh-Chang Chen, Ming-Jong Bair, Chi-Yang Chang, Yi-Chia Lee, Mei-Jyh Chen, Chien-Chuan Chen, Cheng-Hao Tseng, Yao-Chun Hsu, Ji-Yuh Lee, Tsung-Hua Yang, Jiing-Chyuan Luo, Chun-Chao Chang, Chi-Yi Chen, Po-Yueh Chen, Chia-Tung Shun, Wen-Feng Hsu, Wen-Hao Hu, Yen-Nien Chen, Bor-Shyang Sheu, Jaw-Town Lin, Jeng-Yih Wu, Emad M El-Omar, Ming-Shiang Wu
BACKGROUND: Whether concomitant therapy is superior to bismuth quadruple therapy or 14-day triple therapy for the first-line treatment of Helicobacter pylori infection remains poorly understood. We aimed to compare the efficacy and safety of 10-day concomitant therapy, 10-day bismuth quadruple therapy, and 14-day triple therapy in the first-line treatment of H pylori. METHODS: In this multicentre, open-label, randomised trial, we recruited adult patients (aged >20 years) with H pylori infection from nine medical centres in Taiwan...
November 12, 2016: Lancet
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