Co-expression of VEGF-B and FLT-1 correlates with malignancy and prognosis of gastric cancer

2021 ◽  
Author(s):  
Yanpeng Ma ◽  
Wenyao Wang ◽  
Longlong Liu ◽  
Yang liu ◽  
Wei Bi
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Targeted Therapy ◽  
Correlation Analysis ◽  
Detailed Analysis ◽  
Poor Prognosis ◽  
Rank Correlation ◽  
Spearman’S Rank Correlation

Background: This study aims to investigate the correlation of VEGF-B and FLT-1 co-expression with the prognosis of gastric cancer (GC). Materials & methods: Primary GC samples and adjacent tissues were obtained from 96 patients. Results: Both VEGF-B and FLT-1 were testified to be upregulated in the human GC compared with adjacent tissues. Spearman’s rank correlation analysis indicated that VEGF-B and FLT-1 expression were correlated (r = 0.321, p = 0.0015). High VEGF-B and FLT-1 co-expression patients showed poor prognosis when compared with low VEGF-B and FLT-1 co-expression patients (p = 0.0169). Conclusion: The high co-expression of VEGF-B and FLT-1 in GC shows a poor prognosis of overall survival, and targeted therapy against the interaction between VEGF-B and FLT-1 is worth further detailed analysis.

Variation terminologique en francophonie. Élaboration d’un modèle d’analyse des facteurs d’implantation terminologique

2017 ◽  
Author(s):  
◽  
Minchai Kim
Keyword(s):  
Correlation Analysis ◽  
Statistical Tests ◽  
Rank Correlation ◽  
Decisive Role ◽  
European Countries ◽  
French Language ◽  
Hypothetical Model ◽  
Moderator Variables ◽  
Spearman’S Rank Correlation ◽  
Significant Difference

Our research aims to elucidate the factors that influence the terminological implantation of a term by proposing a new typology of those factors with a method revealing how their mechanism causes terminological variation in French-language ICT. We accomplish this through an analysis of four Francophone communities: France, Quebec, Belgium, and Switzerland. After establishing a new typology, which encompasses the terminological, socio-terminological, psycho-terminological, and extra-terminological factors, we propose a hypothetical model of their mechanism by introducing three statistical concepts—dependent, independent, and moderator variables—to elucidate these factors’ relationships. We verify our model in two steps. First, for the analysis of terminological and socio- terminological factors, we examine the relations between each factor and terminological implantation of 256 French ICT terms. For this, we begin by coding the terms according to a criterion established for each factor. We then carry out a correlation analysis with Spearman’s rank correlation. Second, we analyse the psycho-terminological and extra-terminological factors with statistical tests on the answers to our questionnaire, which show significant differences between these four linguistic communities. Our analysis confirms a significant difference between the three European countries and Quebec in the mechanism of the terminological implantation factors and we conclude that the psycho-terminological and extra-terminological factors play a decisive role in this difference, which we identify as diatopic.

scholarly journals Hyperprogressive disease during nivolumab or irinotecan treatment in patients with advanced gastric cancer

ESMO Open ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. e000488 ◽  
Author(s):  
Masahiko Aoki ◽  
Hirokazu Shoji ◽  
Kengo Nagashima ◽  
Hiroshi Imazeki ◽  
Takahiro Miyamoto ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Advanced Gastric Cancer ◽  
Survival Benefit ◽  
Poor Prognosis ◽  
Tumour Growth ◽  
Progression Free Survival ◽  
Free Survival ◽  
Prior Therapy ◽  
Hyperprogressive Disease

BackgroundNivolumab showed a survival benefit for advanced gastric cancer (AGC). However, an acceleration of tumour growth during immunotherapy, (hyperprogressive disease, HPD) has been reported in various cancers. This study reviewed the HPD in patients with AGC treated with nivolumab or irinotecan.MethodsThe subjects of this retrospective study were patients with AGC with measurable lesions, and their tumour growth rates (TGR) during nivolumab or irinotecan were compared with those during prior therapy. HPD was defined as an increase in TGR more than twofold.Results34 and 66 patients received nivolumab and irinotecan in third or later line between June 2009 and September 2018 at our hospital; 22 patients receiving nivolumab had prior treatment with irinotecan, and one patient received irinotecan after nivolumab. Nivolumab and irinotecan showed no differences in disease control rates (38.2% and 34.8%) and in progression-free survival (PFS) (HR 1.1, 95% CI 0.7 to 1.6, p=0.802). The incidence of HPD was slightly higher after nivolumab (29.4%) than after irinotecan (13.5%) (p=0.0656), showing no differences in background between the patients with and without HPD. Compared between HPD and PD other than HPD after nivolumab, the HRs for PFS and overall survival (OS) were 1.1 (95% CI 0.5 to 2.7; p=0.756), and 2.1 (95% CI 0.7 to 5.8; p=0.168), but such clear difference in OS was not observed after irinotecan.ConclusionsHPD was observed more frequently after nivolumab compared with irinotecan, which was associated with a poor prognosis after nivolumab but not so clearly after irinotecan.

Correlation between overall survival and other endpoints in clinical trials of second-line chemotherapy for patients with advanced gastric cancer.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 4067-4067
Author(s):  
Kohei Shitara ◽  
Keitaro Matsuo ◽  
Kei Muro ◽  
Atsushi Ohtsu
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Advanced Gastric Cancer ◽  
Rank Correlation ◽  
Progression Free Survival ◽  
Second Line ◽  
Second Line Chemotherapy ◽  
Randomized Studies ◽  
Low Correlation ◽  
Line Chemotherapy

4067 Background: The correlation between progression-free survival (PFS) or time to progression (TTP) and overall survival (OS) has been evaluated in patients with advanced gastric cancer (AGC) who received first-line chemotherapy (Shitara, K et al. Invest New Drug 2011; Shitara K and Burzykowski T, et al, ASCO 2011). However, no corresponding analysis had been done in patients who underwent second-line chemotherapy for AGC. Methods: We evaluated the potential of PFS, TTP, response rate (RR), or disease control rate (DCR) to act as surrogates for OS in phase II and III trials of second-line chemotherapy for AGC by comprehensive literature-based analysis. Correlations between each endpoint and OS were evaluated by Spearman rank correlation coefficient (ρ). Subgroup analyses by trial region or type of failure to previous chemotherapy were also conducted. Results: Fifty-six trials, including four randomized studies, were selected for analysis and covered a total of 61 treatment arms and 3,038 patients; 34 studies were conducted in Asia, 20 studies in Non-Asian countries, and two studies in both regions. Median PFS were similar in Asian and Non-Asian trials (3.0 vs. 3.3 months). In contrast, median OS tended to be longer in Asian vs. Non-Asian trials (8.0 vs. 6.0 months; p<0.01). Median PFS/TTP and OS showed a moderate correlation with ρ of 0.51 (95% CI, 0.31-0.73). Correlation tended to be higher in PFS (ρ = 0.62) than TTP (ρ = 0.29) and higher in non-Asian trials (ρ = 0.73) than Asian trials (ρ = 0.32). Correlation between PFS/TTP and OS among the trials in which eligibility required failure to previous fluorouracil and cisplatin also showed low correlation (ρ = 0.48). The RR and DCR also did not show high correlation with OS (ρ = 0.30 for RR; 95% CI 0.04-0.56; ρ = 0.53 for DCR; 95% CI 0.31-0.75). The hazard ratio (HR) of PFS and OS in each arms of the four randomized studies showed a low correlation with ρ of 0.10. Conclusions: Our results indicate that PFS/TTP, RR, and DCR did not correlate sufficiently with OS to be used as surrogate endpoints in patients with AGC who underwent second-line chemotherapy. Further research is needed based on individual patient data from ongoing randomized trials.

scholarly journals Identification of MATN3 as a Novel Prognostic Biomarker for Gastric Cancer through Comprehensive TCGA and GEO Data Mining

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Pan Wang ◽  
Wei-sheng Xiao ◽  
Yue-hua Li ◽  
Xiao-ping Wu ◽  
Hong-bo Zhu ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Poor Prognosis ◽  
Prognostic Value ◽  
Prognostic Biomarker ◽  
Meta Analysis ◽  
Progression Free Survival ◽  
Free Survival ◽  
The World ◽  
Diagnostic And Prognostic Value

Gastric cancer (GC) is still a vital malignant cancer across the world with unsatisfactory prognostic results. Matrilin-3 (MATN3) is a member of the extracellular matrix (ECM) protein family. The present research intends to explore the expression level of MATN3 in patients with GC and to explore the prognosis significance of MATN3. In this study, we observed that the MATN3 expression was remarkably upregulated in GC samples in contrast to noncancer samples. Clinical analyses unveiled that high MATN3 expression was related to age, tumor status, and clinical stages. Survival analyses unveiled that patients with high MATN3 expression displayed a poorer overall survival and progression-free survival than those with low MATN3 expression. The AUC of the relevant ROC curve for 1 year, 3 years, and 5 years of survival is 0.571, 0.596, and 0.720, separately. Multivariate assays revealed that MATN3 expression and stage were independent predictors of poor prognosis of GC patients. A meta-analysis unveiled that high MATN3 expression was tightly associated with better overall survival. Overall, our data indicated that MATN3 may have a diagnostic and prognostic value for patients with advanced gastric cancer and assist to improve clinical outcomes for GC patients.

scholarly journals Incidence and Prognostic significance of Signet Ring Cell Histology in Gastric Cancer. A cross sectional study from Turkey: Pure Signet Ring Cell Histology in Gastric Cancer

2020 ◽  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Poor Prognosis ◽  
Prognostic Significance ◽  
Good Prognosis ◽  
Signet Ring Cell ◽  
Stage I ◽  
Stage Iii ◽  
Signet Ring ◽  
Ring Cell

Purpose: The present study aims to evaluate the incidence of signet ring cell (SRC) histology in patients with gastric cancer and its prognostic significance on the disease stage. Methods: Between November 2006 and September 2019, 309 patients were reviewed retrospectively in Kartal Koşuyolu High Specialization Training and Research Hospital Gastroenterology Surgery clinic in Turkey and the clinicopathological features and survival status were examined in the presence of ring cell histology. Results: Of the patients, 71.4% had gastric cancer with a non-SRC histology and 28.6% had an SRC histology. The presence of an SRC histology was found to be associated with young age (p=0.007), advanced depth of wall invasion (p=0.001), number of positive lymph nodes (p=0.022) and presence of vascular invasion (p=0.044). The presence of an SRC histology was associated with good prognosis in patients with stage I gastric cancer (p=0.045), but with poor prognosis in patients with stage III disease (p=0.034). The study found no significant association between stage II disease and overall survival. Conclusions: The present study found survival to be associated with good prognosis in stage I, and poor prognosis in stage III among patients with gastric cancer with SRC histology. No prognostic significance could be established for overall survival.

scholarly journals The Russian schoolchildren's digital reading: Factors affecting medium preferences and self-evaluation of digital reading practice

2020 ◽  
Vol 10 (6) ◽  
pp. 252-272
Author(s):  
Maria Yuryevna Lebedeva ◽  
◽  
Kseniya Petrovna Vergeles ◽  
Olga Fedorovna Kupreshchenko ◽  
Lyudmila Yuryevna Zhiltsova ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Rank Correlation ◽  
Self Report ◽  
Rank Test ◽  
Subjective Perception ◽  
Digital Reading ◽  
Reading Practice ◽  
Factors Affecting ◽  
Self Evaluation ◽  
Spearman’S Rank Correlation

Introduction. While the importance of digital reading in modern education is constantly increasing, there are some knowledge gaps in investigating reading patterns (reading digital and print texts). There is still little scientific understanding of how Russian schoolchildren choose the medium of reading and how children assess their reading behavior in the digital environment. The purpose of the article is to reveal the factors that influence Russian schoolchildren’s choice of a reading medium, as well as the features of their self-evaluation of digital reading practices. Materials and Methods. To achieve the goal of the study we used the following methods: a questionnaire, statistical data processing, including t-test, correlation analysis using Spearman's rank correlation coefficient (rs) for ordinal variables and Pearson's coefficient (rp) for quantitative variables, comparative analysis based on the Mann-Whitney rank test for nonparametric data and ordinal scales, ANOVA. Results. During the research a questionnaire consisting of three blocks of questions was developed, tested and distributed among the target audience. 568 students of grades 5-11 from 54 regions of the Russian Federation took part in the survey. Correlation analysis of the data made it possible to reveal some factors which influence the Russian schoolchildren’s choice of the reading medium - digital or printed. Furthermore, the authors identified the features of schoolchildren’s subjective perception of digital reading and the factors determining this perception. Conclusions. The study identified factors which significantly affect the Russian children’s preference to read digitally: the type of text, the purpose of reading, the respondents’ age, their attitude to reading and the level of reading proficiency (according to self-report data). Children’s self-evaluation of digital reading showed that they identify both negative (increased fatigue, decreased interest in reading, etc.) and positive aspects of reading digital texts (efficiency of search reading). Keywords Reading; Digital reading; Reading medium; Preferences of reading medium; Reading self-evaluation; Reading practice; Russian schoolchildren

scholarly journals Clinicopathologic Relevance of Claudin 18.2 Expression in Gastric Cancer: A Meta-Analysis

2021 ◽  
Vol 11 ◽  
Author(s):  
Bogdan Silviu Ungureanu ◽  
Cristian-Virgil Lungulescu ◽  
Daniel Pirici ◽  
Adina Turcu-Stiolica ◽  
Dan Ionut Gheonea ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Targeted Therapy ◽  
Odds Ratio ◽  
Web Of Science ◽  
Meta Analysis ◽  
Pathological Features ◽  
Potential Efficacy ◽  
The Relationship ◽  
Review Manager

An increasing number of tumor markers have been discovered to have potential efficacy as diagnostic and prognostic tools in gastric cancer. We aimed to assess putative correlations between claudin 18.2 expression and pathological or prognosis features in patients with gastric cancer. MEDLINE, Web of Science, EBSCO, and ClinicalTrials.gov were used to search for relevant studies from their inception to 30 October 2020. Finally, a total of six articles were included in this meta-analysis. Review Manager 5 software was applied to examine the heterogeneity among the studies and to calculate the odds ratio with 95% CI by selecting corresponding models, in evaluating the strength of the relationship. Publication bias test was also conducted. No bias and no significant correlations were found between CLDN 18.2 and TNM stages, Lauren classification, HER2, grading, or overall survival. This meta-analysis expounded that the relationship with CLDN 18.2 and pathological features depends on the percentage of staining of tumor cells for which CLDN 18.2 is considered positive. Our pooled outcomes suggest that targeted therapy for CLDN 18.2 could be effective if certain criteria were established.

scholarly journals Current Views On The Pathogenesis Of The Parietal-Visceral Pathway Of Gastric Cancer Metastasis

2021 ◽  
Vol 03 (03) ◽  
pp. 94-103
Author(s):  
Mirdjalol Dehkanovich Djuraev ◽  
◽  
Nodir Maxammatkulovich Rahimov ◽  
Mavluda Nigmatovna Karimova ◽  
Shakhnoza Shavkatovna Shakhanova ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Targeted Therapy ◽  
Molecular Biology ◽  
Cellular Immunity ◽  
Cancer Metastasis ◽  
Treatment Options ◽  
Peritoneal Metastases ◽  
Signalling Pathways ◽  
Recent Experience

Metastases to the peritoneum occur in 55-60% of patients with gastric cancer and are associated with a 5-year overall survival of 2%. Treatment options for these patients are limited, and targeted therapy or immunotherapy is not available. Rational therapeutic targets have yet to be found.In this review, we present the published literature and our own recent experience in molecular biology to identify important molecules and signalling pathways as well as cellular immunity involved in GC peritoneal metastases.

scholarly journals Preoperative Anemia or Low Hemoglobin Predicts Poor Prognosis in Gastric Cancer Patients: A Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Xuan-zhang Huang ◽  
Yu-chong Yang ◽  
You Chen ◽  
Cong-cong Wu ◽  
Rui-fang Lin ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Poor Prognosis ◽  
Prognostic Value ◽  
Disease Free Survival ◽  
Preoperative Anemia ◽  
Free Survival ◽  
Effect Model ◽  
Gastric Cancer Patients ◽  
Disease Free

Background. The prognostic value of preoperative anemia in gastric cancer remains unclear. Therefore, the purpose of the present study is to evaluate the prognostic value of preoperative anemia in gastric cancer. Methods. We searched Embase and PubMed databases for relevant studies from inception to March 2018. The prognostic value of preoperative anemia in gastric cancer was determined by calculating the hazard ratio (HR) and the corresponding 95% confidence interval (CI) as effect measures. A random effect model was used in cases in which there was significant heterogeneity; otherwise, a fixed effect model was used. Statistical analyses were performed using Stata software. Results. Seventeen studies involving 13,154 gastric cancer patients were included. The estimated rate of preoperative anemia was 36% (95%CI=27-44%). The overall survival of preoperative anemia was poor (HR=1.33, 95%CI=1.21-1.45). Moreover, disease-free survival was significantly lower in patients with preoperative anemia compared with those without this condition (HR=1.62, 95%CI=1.13-2.32). These findings were corroborated by the results of subgroup analyses. Conclusions. The results indicate that preoperative anemia predicts poor prognosis in gastric cancer, including overall survival and disease-free survival. Therefore, preoperative anemia may be a convenient and cost-effective blood-derived prognostic marker for gastric cancer.

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