scholarly journals Serum Trefoil Factor 3 as a Protein Biomarker for the Diagnosis of Colorectal Cancer

2016 ◽  
Vol 16 (4) ◽  
pp. 440-445 ◽  
Author(s):  
Qiang Li ◽  
Keke Wang ◽  
Chang Su ◽  
Jieyu Fang
Keyword(s):  
Colorectal Cancer ◽  
Diagnostic Accuracy ◽  
Receiver Operating Characteristic ◽  
Carcinoembryonic Antigen ◽  
Operating Characteristic ◽  
Tnm Stage ◽  
Healthy Controls ◽  
Trefoil Factor ◽  
Trefoil Factor 3 ◽  
Receiver Operating

Colorectal cancer is one of the most frequent causes of cancer-related deaths worldwide. Thus, there is a need for timely diagnosis and effective treatment. Our aim in the present study was to detect the serum level of trefoil factor 3 protein and evaluate the diagnostic accuracy of trefoil factor 3 in patients with colorectal cancer. We collected serum samples from 204 participants (127 patients with colorectal cancer, 35 patients with polyps, and 42 healthy controls). The levels of serum trefoil factor 3 and carcinoembryonic antigen expression were measured by enzyme-linked immunosorbent assay. Receiver operating characteristic curves were plotted to calculate the diagnostic accuracy of trefoil factor 3 in patients with colorectal cancer. The serum levels of trefoil factor 3 in patients with colorectal cancer (6.66 ± 2.4 ng/mL; P < .00l) and polyps (3.86 ± 1.3 ng/mL; P < .00l) were significantly increased compared to healthy controls (2.09 ± 1.0 ng/mL). Moreover, the area under the receiver operating characteristic curve for trefoil factor 3 was greater than carcinoembryonic antigen (0.889 vs 0.715). At a cutoff value of 5.591 ng/mL, the diagnostic sensitivity, specificity, and likelihood ratio of serum trefoil factor 3 for colorectal cancer was 74.2%, 94.8%, and 14.25, respectively. Furthermore, the serum trefoil factor 3 levels in early colorectal cancer (TNM stage I, 3.67 ± 1.27 ng/mL) were significantly increased compared to healthy controls ( P < .001); however, there was no significant difference compared to patients with polyps ( P = .576). We observed that the serum trefoil factor 3 levels decreased after surgery (6.66 ± 2.4 vs 4.48 ± 1.80 ng/mL; P < .001). In addition, high serum trefoil factor 3 levels were associated with poor tumor differentiation and clinical TNM stage ( P < .05). In conclusion, serum trefoil factor 3 is a promising biomarker for the diagnosis of colorectal cancer and prognosis of patients.

scholarly journals A three-miRNA panel in serum as a noninvasive biomarker for colorectal cancer detection

2020 ◽  
Vol 35 (3) ◽  
pp. 74-82
Author(s):  
Xiqi Peng ◽  
Jingyao Wang ◽  
Chunduo Zhang ◽  
Kaihao Liu ◽  
Liwen Zhao ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Receiver Operating Characteristic ◽  
Cancer Detection ◽  
Operating Characteristic ◽  
Target Genes ◽  
Healthy Controls ◽  
Characteristic Analysis ◽  
Diagnostic Ability ◽  
Noninvasive Biomarker ◽  
Receiver Operating

Background: Circulating miRNAs have been proved to be promising biomarkers for disease detection in recent years. The present study aimed at exploring available serum miRNA biomarkers for the detection of colorectal cancer. Methods: A three-phase study was performed to select and validate candidate miRNAs with significant dysregulation in colorectal cancer using quantitative reverse transcription-polymerase chain reaction. This study recruited 137 colorectal cancer patients and 145 healthy controls. The diagnostic values of miRNAs were evaluated by receiver operating characteristic analysis. Bioinformatics analyses were utilized to predict target genes of miRNAs, and to conduct functional annotation and enrichment. Results: miR-30e-3p, miR-31-5p, miR-34b-3p and miR-146a-5p, miR-148a-3p and miR-192-5p were significantly dysregulated in colorectal cancer serum when compared with healthy controls. The panel composed of miR-30e-3p, miR-146a-5p, and miR-148a-3p exhibited strong diagnostic ability. The area under the receiver operating characteristic curve of the three-miRNA panel was 0.883, with a sensitivity of 0.800 and specificity of 0.787. Conclusion: The present study identified a three-miRNA panel in serum with a strong diagnostic ability of colorectal cancer, which may be able to serve as a novel noninvasive biomarker for colorectal cancer detection.

scholarly journals Standard echocardiography versus handheld echocardiography for the detection of subclinical rheumatic heart disease: a systematic review and meta-analysis of diagnostic accuracy

BMJ Open ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. e038449
Author(s):  
Lisa Helen Telford ◽  
Leila Hussein Abdullahi ◽  
Eleanor Atieno Ochodo ◽  
Liesl Joanna Zuhlke ◽  
Mark Emmanuel Engel
Keyword(s):  
Systematic Review ◽  
Heart Disease ◽  
Diagnostic Accuracy ◽  
Receiver Operating Characteristic ◽  
Rheumatic Heart Disease ◽  
Operating Characteristic ◽  
Meta Analysis ◽  
Endemic Areas ◽  
Rheumatic Heart ◽  
Receiver Operating

ObjectiveTo summarise the accuracy of handheld echocardiography (HAND) which, if shown to be sufficiently similar to that of standard echocardiography (STAND), could usher in a new age of rheumatic heart disease (RHD) screening in endemic areas.DesignSystematic review and meta-analysis.Data sourcesPubMed, Scopus, EBSCOHost and ISI Web of Science were initially searched on 27 September 2017 and again on 3 March 2020 for studies published from 2012 onwards.Eligibility criteriaStudies assessing the accuracy of HAND compared with STAND when performed by an experienced cardiologist in conjunction with the 2012 World Heart Federation criteria among populations of children and adolescents living in endemic areas were included.Data extraction and synthesisTwo reviewers independently extracted data and assessed the methodological quality of included studies against review-specific Quality Assessment of Diagnostic Accuracy Studies (QUADAS)-2 criteria. A meta-analysis using the hierarchical summary receiver operating characteristic model was conducted to produce summary results of sensitivity and specificity. Forest plots and scatter plots in receiver operating characteristic space in combination with subgroup analyses were used to investigate heterogeneity. Publication bias was not investigated.ResultsSix studies (N=4208) were included in the analysis. For any RHD detection, the pooled results from six studies were as follows: sensitivity: 81.56% (95% CI 76.52% to 86.61%) and specificity: 89.75% (84.48% to 95.01%). Meta-analytical results from five of the six included studies were as follows: sensitivity: 91.06% (80.46% to 100%) and specificity: 91.96% (85.57% to 98.36%) for the detection of definite RHD only and sensitivity: 62.01% (31.80% to 92.22%) and specificity: 82.33% (65.15% to 99.52%) for the detection of borderline RHD only.ConclusionsHAND displayed good accuracy for detecting definite RHD only and modest accuracy for detecting any RHD but demonstrated poor accuracy for the detection of borderline RHD alone. Findings from this review provide some evidence for the potential of HAND to increase access to echocardiographic screening for RHD in resource-limited and remote settings; however, further research into feasibility and cost-effectiveness of wide-scale screening is still needed.PROSPERO registration numberCRD42016051261.

scholarly journals Platelet and Red Blood Cell Indices in Patients with Panic Disorder: A Receiver Operating Characteristic Analysis

2020 ◽  
Vol 11 (02) ◽  
pp. 261-266 ◽  
Author(s):  
Ramdas S. Ransing ◽  
Neha Gupta ◽  
Girish Agrawal ◽  
Nilima Mahapatro
Keyword(s):  
Panic Disorder ◽  
Blood Cell ◽  
Receiver Operating Characteristic ◽  
Red Blood Cell ◽  
Roc Curve ◽  
Operating Characteristic ◽  
Healthy Controls ◽  
Distribution Width ◽  
Rbc Indices ◽  
Receiver Operating

Abstract Objective Panic disorder (PD) is associated with changes in platelet and red blood cell (RBC) indices. However, the diagnostic or predictive value of these indices is unknown. This study assessed the diagnostic and discriminating value of platelet and RBC indices in patients with PD. Materials and Methods In this cross-sectional study including patients with PD (n = 98) and healthy controls (n = 102), we compared the following blood indices: mean platelet volume (MPV), platelet distribution width (PDW), and RBC distribution width (RDW). The receiver operating characteristic (ROC) curve was used to calculate the area under the ROC curve (AUC), sensitivity, specificity, and likelihood ratio for the platelet and RBC indices. Results Statistically significant increase in PDW (17.01 ± 0.91 vs. 14.8 ± 2.06; p < 0.0001) and RDW (16.56 ± 2.32 vs. 15.12 ± 2.43; p < 0.0001) levels were observed in patients with PD. PDW and mean corpuscular hemoglobin concentration had larger AUC (0.89 and 0.74, respectively) and Youden’s index (0.65 and 0.39, respectively), indicating their higher predictive capacity as well as higher sensitivity in discriminating patients with PD from healthy controls. Conclusion PDW can be considered a “good” diagnostic or predictive marker in patients with PD.

scholarly journals Association between Levels of IgA Antibodies to Tissue Transglutaminase and Gliadin-Related Nonapeptides in Dermatitis Herpetiformis

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Justyna Gornowicz-Porowska ◽  
Monika Bowszyc-Dmochowska ◽  
Agnieszka Seraszek-Jaros ◽  
Elżbieta Kaczmarek ◽  
Marian Dmochowski
Keyword(s):  
Diagnostic Accuracy ◽  
Receiver Operating Characteristic ◽  
Causal Relationship ◽  
Operating Characteristic ◽  
Dermatitis Herpetiformis ◽  
Tissue Transglutaminase ◽  
Roc Curves ◽  
Healthy Controls ◽  
Iga Antibodies ◽  
Healthy Persons

Dermatitis herpetiformis (DH) is an autoimmunity-driven inflammatory blistering dermatosis associated with a gluten-dependent enteropathy. Tissue transglutaminase (tTG) and nonapeptides of gliadin (npG) are considered in its pathomechanism/diagnostics. Here, the diagnostic accuracy of anti-tTG/anti-npG IgA ELISAs in Slavic DH patients with active skin rash was assessed through creating receiver operating characteristic (ROC) curves, determining cutoff values, and calculating correlations between levels of anti-tTG/anti-npG IgA in DH, IgA/neutrophil-mediated non-DH patients and healthy persons. Altogether, sera from 80 Slavic individuals were examined. There were negligible differences between cutoff points obtained by the ELISAs manufacturer and those in this study. There were statistically significant correlations between levels of anti-tTG/anti-npG IgA in both DH group and the group of IgA/neutrophil-mediated non-DH dermatoses. There was no such correlation in healthy controls. It seems that IgA autoantibodies to tTG and npG in the IgA/neutrophil-mediated DH are produced in the coordinated way implying their causal relationship.

scholarly journals Diagnostic Accuracy of Non-invasive Laboratory-Based Fibrosis Scores in Predicting the Presence of Esophageal Varices in Liver Cirrhosis

2020 ◽  
Vol 9 (2) ◽  
pp. 54-59
Author(s):  
Rajesh Pandey ◽  
Rahul Pathak ◽  
Arun Gnawali ◽  
Prem Krishna Khadga ◽  
Sashi Sharma ◽  
...  
Keyword(s):  
Liver Cirrhosis ◽  
High Risk ◽  
Diagnostic Accuracy ◽  
Receiver Operating Characteristic ◽  
Esophageal Varices ◽  
Operating Characteristic ◽  
Cutoff Value ◽  
Non Invasive ◽  
Apri Score ◽  
Receiver Operating

Introduction: Non-invasive assessment of esophageal varices (EVs) may reduce endoscopic burden and cost. This study aimed to evaluate the diagnostic accuracy of non-invasive fibrosis scores (AAR, APRI, FIB-4, King and Lok scores) for the prediction of varices in liver cirrhosis. Methods: This prospective study included 100 liver cirrhosis patients who underwent screening endoscopy for EVs. AAR, APRI, FIB-4, King and Lok scores were assessed. The receiver operating characteristic curves (ROC) were plotted to measure and compare the performance of each score for predicting EVs and to obtain the corresponding optimal prediction value. Results: Of the 100 patients, 70 were males and 30 were females with a mean age of 54.05±11.58 years. Esophageal varices were found in 77 patients out of which 58.44% were high-risk varices. Platelet count and non-invasive fibrosis scores APRI, FIB-4, Lok and King were able to discriminate patients with and without varices. Using area under receiver operating characteristic curve (AUROC), these scores were found to have low to moderate diagnostic accuracy for the presence of EVs and high-risk EVs, where the APRI score had the highest AUROC (0.77 and 0.70) respectively. At a cutoff value > 1.4, APRI score had 90.9% sensitivity, 60.9% specificity and 84 % diagnostic accuracy in predicting the presence of varices, while it had 84.4% sensitivity, 45.5% specificity and 63% diagnostic accuracy in predicting the presence of highrisk varices, at a cutoff value > 2.02. Conclusion: APRI, AAR, FIB-4, King, and Lok scores had low to moderate diagnostic accuracy in predicting the presence of varices in liver cirrhosis. The APRI score can help select a patient for the endoscopy but cannot replace endoscopy for esophageal varices screening.

scholarly journals Analysis of Eyelid Blink Characteristics in Patients with Ptosis Using a Smartphone Camera

2021 ◽  
Vol 62 (7) ◽  
pp. 873-880
Author(s):  
Taesung Joo ◽  
Jin-Ho Joo ◽  
In-Ki Park ◽  
Jae-Ho Shin
Keyword(s):  
Receiver Operating Characteristic ◽  
Roc Curve ◽  
Healthy Subjects ◽  
Operating Characteristic ◽  
Control Group ◽  
Palpebral Fissure ◽  
Blink Rate ◽  
Healthy Controls ◽  
Healthy Control ◽  
Receiver Operating

Purpose: To compare eyelid blink characteristics between patients with ptosis and healthy controls using a smartphone camera. Methods: The ptosis group consisted of 20 senile aponeurotic ptosis patients with margin reflex distance1 ≤2.5 mm and the control group consisted of 10 healthy subjects without ptosis. The ptosis group was further divided into two groups based on an age cutoff of 70 years. Palpebral fissure height, levator function, margin reflex distance1, inter-blink interval, blink duration, blink rate, and blink velocity were measured and compared between the three groups based on photographs of the eyelids and videos of blinking taken with a smartphone camera. Results: The palpebral fissure height, levator function, margin reflex distance1, and blink velocity were lower in the ptosis groups than in the control group but these values did not differ between the two ptosis groups. The palpebral fissure height, levator function, and margin reflex distance1 were correlated with blink velocity. In the receiver operating characteristic (ROC) curve of blink velocity, the area under the receiver operating characteristic (AUROC) curve value was as high as 0.969 and the cut-off value was 32.36 mm/s. Conclusions: It is possible to analyze eyelid blink characteristics using a smartphone camera and the results confirmed that palpebral fissure height, levator function, margin reflex distance1, and blink velocity were lower in the senile aponeurotic ptosis group than in the healthy control group and were unaffected by age. Additionally, blink velocity is valuable for diagnosis of ptosis due to the correlation between the degree of ptosis, blink velocity, and the ROC curve of blink velocity.

scholarly journals 215 Assessment of the Diagnostic Sensitivity and Specificity of Pain Biomarkers in Cattle Using Receiver Operating Characteristic Curves

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 7-8
Author(s):  
Miriam S Martin ◽  
Michael Kleinhenz ◽  
Karen Schwartzkopf-Genswein ◽  
Johann Coetzee
Keyword(s):  
Diagnostic Accuracy ◽  
Receiver Operating Characteristic ◽  
Sensitivity And Specificity ◽  
Predictive Value ◽  
Roc Analysis ◽  
Operating Characteristic ◽  
Diagnostic Sensitivity ◽  
Diagnostic Sensitivity And Specificity ◽  
Good Diagnostic Accuracy ◽  
Receiver Operating

Abstract Biomarkers are commonly used to assess pain and analgesic drug efficacy in livestock. However, the diagnostic sensitivity and specificity of these biomarkers for different pain conditions over time have not been described. Receiver operating characteristic (ROC) curves are graphical plots that illustrate the diagnostic ability of a test as its discrimination threshold is varied. The objective of this analysis was to use area under the curve (AUC) values derived from ROC analysis to assess the predictive value of pain biomarkers at specific timepoints. The biomarkers included in the analysis were blood cortisol, salivary cortisol, hair cortisol, infrared thermography (IRT), mechanical nociceptive threshold (MNT), substance P, and outcomes from a pressure/force measurement system and visual analog scale. A total sample size of 7,992 biomarker outcomes were collected from 6 pain studies involving pain associated with castration, dehorning, lameness, and surgery were included in the analysis. Each study consisted of three treatments; pain, no pain, and analgesia. All statistics were performed using statistical software (JMP Pro 14.0, SAS Institute, Inc., Cary, NC). Results comparing analgesia verses pain yielded good diagnostic accuracy (AUC &gt; 0.7; 95% CI: 0.40 to 0.99) for blood cortisol (timepoints 1.5, 2, and 6 hours); IRT (timepoints 6, 8, 12, and 72 hours); and MNT (timepoints 6, 25, and 49 hours). These results indicate that ROC analysis can be a useful indicator of the predictive value of pain biomarkers and certain timepoints seem to yield good diagnostic accuracy while many do not.

UPLC-MS based plasma metabolomics and lipidomics reveal alterations associated with IgG4-related disease

Rheumatology ◽  
2020 ◽  
Author(s):  
Yiyi Gong ◽  
Panpan Zhang ◽  
Zheng Liu ◽  
Jieqiong Li ◽  
Hui Lu ◽  
...  
Keyword(s):  
Receiver Operating Characteristic ◽  
Operating Characteristic ◽  
Clinical Parameters ◽  
Healthy Controls ◽  
Uridine Diphosphate ◽  
Newly Diagnosed ◽  
Related Disease ◽  
Igg4 Related Disease ◽  
Metabolomic Profiling ◽  
Receiver Operating

Abstract Objective The pathogenesis of IgG4-related disease (IgG4-RD) remains unclear. Metabolomic profiling of IgG4-RD patients offers an opportunity to identify novel pathophysiological targets and biomarkers. This study aims to identify potential plasma biomarkers associated with IgG4-RD. Methods Thirty newly diagnosed IgG4-RD patients, age-matched healthy controls and post-treated IgG4-RD patients were enrolled. Patients’ clinical data, laboratory parameters and plasma were collected. Plasma was measured for ultraperformance liquid chromatography-tandem mass spectrometry based metabolomics and lipidomics profiling. Multivariate and univariate statistical analyses were conducted to identify potential biomarkers. The receiver operating characteristic and the correlations between biomarkers and clinical parameters were investigated. Results The plasma metabolites are altered among healthy controls, newly diagnosed IgG4-RD and post-treated IgG4-RD groups. Of the identified features, eight metabolites were significantly perturbed in the IgG4-RD group, including glyceric acid 1,3-biphosphate (1,3-BPG), uridine triphosphate (UTP), uridine diphosphate glucose (UDP-Glc) or uridine diphosphate galactose (UDP-Gal), lysophospholipids, linoleic acid derivatives and ceramides. Receiver operating characteristic analysis indicated that UTP, UDP-Glc/UDP-Gal and LysoPC (18:1) had high sensitivity and specificity in diagnosis of IgG4-RD. A Pearson correlation analysis showed that 1,3-BPG and UTP were strongly correlated with clinical parameters. Conclusion IgG4-RD patients have a unique plasma metabolomic profile compared with healthy controls. Our study suggested that metabolomic profiling may provide important insights into pathophysiology and testable biomarkers for diagnosis of IgG4-RD.

Receiver-operating characteristic (ROC) plots: a fundamental evaluation tool in clinical medicine

1993 ◽  
Vol 39 (4) ◽  
pp. 561-577 ◽  
Author(s):  
M H Zweig ◽  
G Campbell
Keyword(s):  
Diagnostic Accuracy ◽  
Receiver Operating Characteristic ◽  
Operating Characteristic ◽  
Clinical Medicine ◽  
Clinical Performance ◽  
Function Analysis ◽  
Operating Conditions ◽  
Diagnostic Tools ◽  
Evaluation Tool ◽  
Receiver Operating

Abstract The clinical performance of a laboratory test can be described in terms of diagnostic accuracy, or the ability to correctly classify subjects into clinically relevant subgroups. Diagnostic accuracy refers to the quality of the information provided by the classification device and should be distinguished from the usefulness, or actual practical value, of the information. Receiver-operating characteristic (ROC) plots provide a pure index of accuracy by demonstrating the limits of a test's ability to discriminate between alternative states of health over the complete spectrum of operating conditions. Furthermore, ROC plots occupy a central or unifying position in the process of assessing and using diagnostic tools. Once the plot is generated, a user can readily go on to many other activities such as performing quantitative ROC analysis and comparisons of tests, using likelihood ratio to revise the probability of disease in individual subjects, selecting decision thresholds, using logistic-regression analysis, using discriminant-function analysis, or incorporating the tool into a clinical strategy by using decision analysis.

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