scholarly journals Development and validation of a machine learning-based predictive model to improve the prediction of inguinal status of anal cancer patients: A preliminary report

Oncotarget ◽  
2016 ◽  
Vol 8 (65) ◽  
pp. 108509-108521 ◽  
Author(s):  
Berardino De Bari ◽  
Mauro Vallati ◽  
Roberto Gatta ◽  
Laëtitia Lestrade ◽  
Stefania Manfrida ◽  
...  
2017 ◽  
Vol 7 (1) ◽  
Author(s):  
José M. Lezcano-Valverde ◽  
Fernando Salazar ◽  
Leticia León ◽  
Esther Toledano ◽  
Juan A. Jover ◽  
...  

2021 ◽  
Vol 8 ◽  
Author(s):  
Yun Han ◽  
Bo Wang ◽  
Jinjin Zhang ◽  
Su Zhou ◽  
Jun Dai ◽  
...  

Background: Population-based data on the risk assessment of newly diagnosed cervical cancer patients' bone metastasis (CCBM) are lacking. This study aimed to develop various predictive models to assess the risk of bone metastasis via machine learning algorithms.Materials and Methods: We retrospectively reviewed the CCBM patients from the Surveillance, Epidemiology, and End Results (SEER) database of the National Cancer Institute to risk factors of the presence of bone metastasis. Clinical usefulness was assessed by Akaike information criteria (AIC) and multiple machine learning algorithms based predictive models. Concordance index (C-index) and receiver operating characteristic (ROC) curve were used to define the predictive and discriminatory capacity of predictive models.Results: A total of 16 candidate variables were included to develop predictive models for bone metastasis by machine learning. The areas under the ROC curve (AUCs) of the random forest model (RF), generalized linear model (GL), support vector machine (SVM), eXtreme Gradient Boosting (XGBoost), artificial neutral network (ANN), decision tree (DT), and naive bayesian model (NBM) ranged from 0.85 to 0.93. The RF model with 10 variables was developed as the optimal predictive model. The weight of variables indicated the top seven factors were organ-site metastasis (liver, brain, and lung), TNM stage and age.Conclusions: Multiple machine learning based predictive models were developed to identify risk of bone metastasis in cervical cancer patients. By incorporating clinical characteristics and other candidate variables showed robust risk stratification for CCBM patients, and the RF predictive model performed best among these predictive models.


2004 ◽  
Vol 6 (1) ◽  
pp. 8 ◽  
Author(s):  
Masuro Motoi ◽  
Ken-Ichi Ishibashi ◽  
Osamu Mizukami ◽  
Noriko N. Miura ◽  
Yoshiyuki Adachi ◽  
...  

2021 ◽  
Vol 22 (13) ◽  
pp. 6972
Author(s):  
Ilona Sadok ◽  
Katarzyna Jędruchniewicz ◽  
Karol Rawicz-Pruszyński ◽  
Magdalena Staniszewska

Metabolites and enzymes involved in the kynurenine pathway (KP) are highly promising targets for cancer treatment, including gastrointestinal tract diseases. Thus, accurate quantification of these compounds in body fluids becomes increasingly important. The aim of this study was the development and validation of the UHPLC-ESI-MS/MS methods for targeted quantification of biologically important KP substrates (tryptophan and nicotinamide) and metabolites(kynurenines) in samples of serum and peritoneal fluid from gastric cancer patients. The serum samples were simply pretreated with trichloroacetic acid to precipitate proteins. The peritoneal fluid was purified by solid-phase extraction before analysis. Validation was carried out for both matrices independently. Analysis of the samples from gastric cancer patients showed different accumulations of tryptophan and its metabolites in different biofluids of the same patient. The protocols will be used for the evaluation of tryptophan and kynurenines in blood and peritoneal fluid to determine correlation with the clinicopathological status of gastric cancer or the disease’s prognosis.


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