scholarly journals Identifying Factors Affecting Cancer-related Death in Patients with Adenocarcinoma Gastric Cancer; An Analysis in the Presence of Competing Risks

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Malihe Safari ◽  
Hossein Mahjub ◽  
Habib Esmaeili ◽  
Mohamad Abasi ◽  
Ghodratollah Roshanaei

Background: Adenocarcinoma is the most common type of gastric cancer that has shorter survival than other types of gastric cancer. The death of patients with this type of cancer may be due to the progression of cancer or other related causes. Objectives: The aim of this study is to determine the factors affecting death due to the cancer progression in gastric cancer patients with the diagnosis of adenocarcinoma, using competing risk models. Methods: This retrospective cohort study was performed on 306 gastric cancer patients diagnosed with adenocarcinoma referring to Imam Khomeini clinic in Hamadan from 2002 to 2017. Death due to the cancer progression was considered an interest event and death due to without progression as a competing event. To determine the effect of covariates on hazard, the cause-specific and subdistribution hazard regression models were used. Data analysis was performed, using R3.6.1 software and cmprsk and survival packages. Results: The mean (SD) age of patients was 62.3 (12.5) years and 74.3% were male. The effect of the stage, the number of involved lymphomas, and the type of treatment were significant on the hazard of death due to the disease progression in both cause-specific and subdistribution hazard models. Conclusions: The results showed that most deaths occur in the first 3 years of follow-up. The higher stage and higher number of lymph nodes have increased the hazard of death but supplementary treatment significantly decreased the hazard of death due to cancer progression in adenocarcinoma gastric cancer patients in both competing risk models.

2021 ◽  
Vol 161 ◽  
pp. S1011-S1012
Author(s):  
F. Kraja ◽  
J. Dervishi ◽  
A. Hoti ◽  
E. Karaulli ◽  
I. Akshija ◽  
...  

BMC Cancer ◽  
2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Wang-Yang Pu ◽  
Rong Zhang ◽  
Li Xiao ◽  
Yong-You Wu ◽  
Wei Gong ◽  
...  

1981 ◽  
Vol 14 (10) ◽  
pp. 1409-1413
Author(s):  
Hideaki NISHIDOI ◽  
Osamu KIMURA ◽  
Tsuneyuki OKAMOTO ◽  
Hideaki TAMURA ◽  
Nobuaki KAIBARA ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Jun Wang ◽  
Zhigang He ◽  
Bo Sun ◽  
Wenhai Huang ◽  
Jianbin Xiang ◽  
...  

Pleckstrin-2 (PLEK2) is a crucial mediator of cytoskeletal reorganization. However, the potential roles of PLEK2 in gastric cancer are still unknown. PLEK2 expression in gastric cancer was examined by western blotting and real-time PCR. Survival analysis was utilized to test the clinical impacts of the levels of PLEK2 in gastric cancer patients. In vitro and in vivo studies were used to estimate the potential roles played by PLEK2 in modulating gastric cancer proliferation, self-renewal, and tumourigenicity. Bioinformatics approaches were used to monitor the effect of PLEK2 on epithelial-mesenchymal transition (EMT) signalling pathways. PLEK2 expression was significantly upregulated in gastric cancer as compared with nontumour samples. Kaplan-Meier plotter analysis revealed that gastric cancer patients with higher PLEK2 levels had substantially poorer overall survival compared with gastric cancer patients with lower PLEK2 levels. The upregulation or downregulation of PLEK2 in gastric cancer cell lines effectively enhanced or inhibited cell proliferation and proinvasive behaviour, respectively. Additionally, we also found that PLEK2 enhanced EMT through downregulating E-cadherin expression and upregulating Vimentin expression. Our findings demonstrated that PLEK2 plays a potential role in gastric cancer and may be a novel therapeutic target for gastric cancer.


2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Shu-Bei Wang ◽  
Wei-Xiang Qi ◽  
Jia-Yi Chen ◽  
Cheng Xu ◽  
Youlia M. Kirova ◽  
...  

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14670-e14670
Author(s):  
Metin Ozkan ◽  
Esra Ermis Turak ◽  
Halit Karaca ◽  
Mevlude Inanc ◽  
Veli Berk ◽  
...  

e14670 Background: HER-2 and Topo-2A genes are settled on a chromosome 17 and their co-amplification rates are high. In this study, early gastric cancer patients who received adjuvant chemo-radiotherapy and chemotherapy were evaluated with HER-2 and Topo-2A expression in association with clinical and histopathologic findings. Methods: A total of 103 gastric cancer patients were included the study. The HER-2 and Topo-2A levels were measured by immunohistochemistry in postoperative tumor materials. A standard evaluation method was admitted for HER-2 positivity, while Topo-2A nuclear staining 3+ and 4+ were considered as overexpression. Those with level 2+ or 3+ of HER-2, the FISH test were attempted. Results: The median follow-up was 19 months (ranges 2–70 months). Forty-six patients (44%) relapsed during follow-up whereas 60 patients (58%) had died. The median overall survival (mOS) was 23 months. Histopathologies of HER-2 positive patients were intestinal type in 7 (87.5%) and diffuse type in one (12.5%) patient. In the follow-up period 4 patients (50%) were died (mOS was 17 months in this group). Median overall survival was 23 months in HER-2 negative group (p=0.6). Histopathologies of Topo-2A positive patients were intestinal type in 9 (64.2%) and diffuse type in 5 (35.8%) patient. In the follow-up period 8 patients (57%) were died (mOS was 22 months in this group). Median overall survival was 23 months in Topo-2A negative group (p=0.8). Three patients (37.5%) who had HER-2 positive histopathologies also had Topo-2A positivity. Conclusions: Overexpression rates of HER-2 in gastric cancer were reported 6.8-34%. Racial differences and different scoring techniques thought to be impact the results. Co-amplification rate of HER-2 and Topo-2A was reported 34% in gastric cancer. In our study HER-2 and Topo-2A overexpression rates were 7.7% and 13.6% respectively and co-amplification of HER-2 with Topo-2A rate was 37.5% is also similar to the other studies. Stages of patients with HER-2 and Topo-2A overexpression were similar to the distribution of the overall patients. While intestinal subtypes showed a higher rate of HER-2 overexpression, the median survival times tend to be shorter in HER-2 positive patients.


2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 295-295
Author(s):  
Yusuke Shimodaira ◽  
Sachie Koike ◽  
Yusuke Takahashi ◽  
Masao Okada ◽  
Kaori Hayashibara ◽  
...  

295 Background: Several biomarkers based on serum chemistry have been reported to be associated with the prognosis of several types of cancers. This retrospective study aimed to investigate the prognostic value of preoperative mGPS and NLR after curative resection for gastric cancer. Methods: A total of 295 patients who underwent curative gastrectomy for primary gastric cancer at our institution from January 2013 to December 2017 were enrolled in this study. The mGPS was calculated by CRP and Alb using standard thresholds ( > 0.5 mg/dL for CRP and < 3.5 g/dL for Alb). The NLR was defined as absolute neutrophil count divided by absolute lymphocyte count. The survival curves of patients stratified by each parameter were plotted by the Kaplan-Meier method and compared by log-rank test. Multivariate Cox proportional hazards regression models were used to select parameters independently correlated with prognosis. Results: The median follow-up time was 36.7 months, and 29 patients died during follow-up. The estimated 5-year survival rate was 83.1%. Results from the univariate analyses showed mGPS2 (CRP > 0.5 mg/dL and Alb < 3.5 g/dL) was associated with poor survival while NLR and NLRc was not (P < 0.001, P = 0.506, and P = 0.423, respectively). In the multivariate analyses, the mGPS2 was identified as an independent predictive factor for OS in gastric cancer patients after curative resection (HR: 2.624; 95% CI: 1.058-6.505; P = 0.037). Conclusions: Preoperative mGPS2 was associated with worse survival after curative resection of gastric cancer patients. Based on our study, those with mPGS2 may be warranted to receive additional therapy or nutritional support to acquire better survival.


2021 ◽  
Vol 10 (16) ◽  
pp. 3557
Author(s):  
Ju-Hee Lee ◽  
Sung-Joon Kwon ◽  
Mimi Kim ◽  
Bo-Kyeong Kang

We aimed to determine the frequency and clinical significance of ascites that developed during the follow-up period in patients who underwent curative resection for gastric cancer. The study included 577 patients with gastric cancer who underwent curative gastrectomy. Among them, 184 showed ascites in postoperative follow-up images. Benign ascites was observed in 131 of 490 patients without recurrence, 48 patients (of 87) with recurrence had malignancy-related ascites, and the remaining 5 patients had ascites only prior to recurrence. In most patients without recurrence (97.7%) and in 50% of patients with malignancy-related ascites, the ascites was small in volume and located in the pelvic cavity at the time that it was first identified. However, with the exception of nine patients, malignancy-related pelvic ascites occurred simultaneously or after obvious recurrence. Of those nine patients who had minimal pelvic ascites before obvious recurrence, only one had a clear association with a malignancy-related ascites. In the multivariate analysis, an age of ≤45 was the only independent risk factor for the occurrence of benign ascites. A small volume of pelvic ascites fluid is common in young gastric cancer patients who do not have recurrence after gastrectomy, regardless of sex. It is rare for ascites to be the first manifestation of recurrence.


2021 ◽  
Vol 28 ◽  
pp. 107327482110418
Author(s):  
Yan-Ping Wang ◽  
Ting Wei ◽  
Xiao Ma ◽  
Xiao-Liang Zhu ◽  
Long-Fei Ren ◽  
...  

Background Although  Helicobacter pylori (Hp) as high risk factor for gastric cancer have been investigated from human trial, present data is inadequate to explain the effect of Hp on the changes of metabolic phenotype of gastric cancer in different stages. Purpose Herein, plasma of human superficial gastritis (Hp negative and positive), early gastric cancer and advanced gastric cancer analyzed by UPLC-HDMS metabolomics can not only reveal metabolic phenotype changes in patients with gastric cancer of different degrees (30 Hp negative, 30 Hp positive, 20 early gastric cancer patients, and 10 advanced gastric cancer patients), but also auxiliarily diagnose gastric cancer. Results Combined with multivariate statistical analysis, the results represented biomarkers different from Hp negative, Hp positive, and the alterations of metabolic phenotype of gastric cancer patients. Forty-three metabolites are involved in amino acid metabolism, and lipid and fatty acid metabolism pathways in the process of cancer occurrence, especially 2 biomarkers glycerophosphocholine and neopterin, were screened in this study. Neopterin was consistently increased with gastric cancer progression and glycerophosphocholine tended to consistently decrease from Hp negative to advanced gastric cancer. Conclusion This method could be used for the development of rapid targeted methods for biomarker identification and a potential diagnosis of gastric cancer.


2021 ◽  
Author(s):  
Jin Zheng ◽  
Weibin Shi

Abstract Background Peritoneal metastasis is a critical way of metastasis for gastric cancer, patients with which tend to have poor prognosis. Laparoscopy or laparotomy is still major approach to diagnose peritoneal metastasis presently. This study was aimed to explore the factors affecting peritoneal metastasis of gastric cancer and establish a nomogram to predict that preoperatively. Methods 1002 gastric cancer patients who underwent surgery without distant organ metastasis was collected in the study. The nomogram was built with variables selected by univariate logistical regression and LASSO, and evaluated with internal and external validation ROC curve.Results Three factors including carbohydrate antigen 125, carbohydrate antigen 242 and serosal invasion or not of primary tumor were enrolled in the nomogram. The AUC value was0.922 (95%CI 0.897~0.947) in internal validation and 0.934 (95%CI 0.852~1.000) in external validation. Conclusions This study developed a nomogram with risk factors easily accessible before surgery in patients with gastric cancer, which can predict the probability of peritoneal metastasis well and would be helpful for clinicians to make appropriate therapy strategies.


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