scholarly journals Identification of plasma lipid species as promising diagnostic markers for prostate cancer

2020 ◽  
Vol 20 (S9) ◽  
Author(s):  
Xiaoli Chen ◽  
Yong Zhu ◽  
Mayumi Jijiwa ◽  
Masaki Nasu ◽  
Junmei Ai ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Plasma Lipid ◽  
Diagnostic Value ◽  
Detection Methods ◽  
Control Group ◽  
Predictive Values ◽  
Kegg Pathway Database ◽  
Cancer Group ◽  
Lipid Species ◽  
Potential Biomarkers

Abstract Background Prostate cancer is a very common and highly fatal in men. Current non-invasive detection methods like serum biomarker are unsatisfactory. Biomarkers with high accuracy for diagnostic of prostate cancer are urgently needed. Many lipid species have been found related to various cancers. The purpose of our study is to explore the diagnostic value of lipids for prostate cancer. Results Using triple quadruple liquid chromatography electrospray ionization tandem mass spectrometry, we performed lipidomics profiling of 367 lipids on a total 114 plasma samples from 30 patients with prostate cancer, 38 patients with benign prostatic hyperplasia (BPH), and 46 male healthy controls to evaluate the lipids as potential biomarkers in the diagnosis of prostate cancer. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway database was used to construct the potential mechanism pathway. After statistical analysis, five lipids were identified as a panel of potential biomarkers for the detection of prostate cancer between prostate cancer group and the BPH group; the sensitivity, specificity, and area under curve (AUC) of the combination of these five lipids were 73.3, 81.6%, and 0.800, respectively. We also identified another panel of five lipids in distinguishing between prostate cancer group and the control group with predictive values of sensitivity at 76.7%, specificity at 80.4%, and AUC at 0.836, respectively. The glycerophospholipid metabolism pathway of the selected lipids was considered as the target pathway. Conclusions Our study indicated that the identified plasma lipid biomarkers have potential in the diagnosis of prostate cancer.

scholarly journals Prostate-Specific antigen value and micro RNAs as potential diagnostic biomarkers for prostate cancer

2021 ◽  
Vol 8 (2) ◽  
pp. 107-113
Author(s):  
Aydemir Asdemir ◽  
Sevgi Durna Dastan ◽  
Esat Korgali ◽  
Tugba Yildiz Asdemir ◽  
Huseyin Saygin ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Specific Antigen ◽  
Diagnostic Value ◽  
Micro Rna ◽  
Control Group ◽  
Diagnostic Biomarkers ◽  
Expression Levels ◽  
Non Invasive ◽  
Cancer Group ◽  
Micro Rnas

Objective: It is necessary to provide PSA alternatives or methods that can be used in conjunction with PSA to regress complications rising from negative biopsies and to increase diagnostic value. Patients and Methods: The study is consisting of 59 men as the sample group. Blood samples from the individuals are grouped as prostate cancer and BPH (benign prostatic hyperplasia) groups. 27 prostate cancer patients whom some of them also operated are assembled in the patients group and the other 32 individuals are grouped as BPH group. Micro RNA expression levels evaluated by RT-PCR. Results: Prostate cancer group when compared with the control group, it is observed that expression levels of miRNA-221 and miRNA-432 increased while expression levels of miRNA-17-5p, miRNA-30c, miRNA-107, miRNA-141, miRNA-145, miRNA-181a-2, miRNA-331-3p, miRNA-574-3p decreased and expression levels of miRNA-21 and miRNA-375 are quite similar between the groups. Conclusion: The prospect of strong and sensitive serum miRNA expression levels in prostate cancer cases which are easily detectable by non-invasive methods as biomarkers is a promising field of study. Nevertheless, it is currently necessary to work in conjunction with both tissue and serum to enhance both sensitivity and specificity of miRNAs as biomarkers. As such, expression levels of the same miRNAs in tissue and serum provide different expression values which in turn make it difficult to indicate a common biomarker.

scholarly journals Evaluation of Diagnostic Value in Using a Panel of Multiple Tumor-Associated Antigens for Immunodiagnosis of Cancer

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Peng Wang ◽  
Chunhua Song ◽  
Weihong Xie ◽  
Hua Ye ◽  
Kaijuan Wang ◽  
...  
Keyword(s):  
Negative Likelihood Ratio ◽  
Cyclin B1 ◽  
Diagnostic Value ◽  
Antibody Detection ◽  
Enzyme Linked Immunosorbent Assay ◽  
Predictive Values ◽  
Multiple Tumor ◽  
Tumor Associated Antigens ◽  
Cancer Group ◽  
Kappa Value

To determine whether a panel of multiple tumor-associated antigens (TAAs) would enhance antibody detection, the diagnostic value of autoantibodies to a panel of multiple TAAs in cancer has been evaluated. The TAAs used in this study was composed of eight TAAs including Imp1, p62, Koc, p53, C-myc, Cyclin B1, Survivin, and p16 full-length recombinant proteins. Enzyme-linked immunosorbent assay and immunoblotting were used to detect antibodies in 304 cancer sera and also 58 sera from normal individuals. The antibody frequency to any individual TAA in cancer was variable but rarely exceeded 20%. With the successive addition of TAAs to a final combination of total of eight antigens, there was a stepwise increase of positive antibody reactions reaching a sensitivity of 63.5% and a specificity of 86.2% in the combined cancer group. In different types of cancer, the ranges of positive and negative likelihood ratio were 4.07–4.76 and 0.39–0.51, respectively, and the ranges of positive and negative predictive values were 74.2–88.7% and 58.8–75.8%, respectively. Agreement rate and Kappa value were 67.1% and 0.51, respectively. These results further support our previous hypothesis that detection of anti-TAAs autoantibodies for diagnosis of certain type of cancer can be enhanced by using a miniarray of several TAAs.

scholarly journals Diagnostic value of serum IgG by Eliza to detecting Mycobacterium tuberculosis, Original Article

2021 ◽  
Vol 9 (1) ◽  
pp. 29-29
Author(s):  
Mehdi Haghdoost ◽  
Parisa Alizadeh Nazmi ◽  
Hamid Owaysee Osquee
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Pulmonary Tuberculosis ◽  
Immunoglobulin G ◽  
Diagnostic Value ◽  
World Health ◽  
Control Group ◽  
Reference Laboratory ◽  
Predictive Values ◽  
Serum Igg ◽  
Significant Difference

Introduction: In developing countries, which is an endemic region in terms of tuberculosis, there is an urgent need for fast, accurate, and inexpensive serological testing. The aim of this study was to determine the diagnostic value of patient serum IgG antibodies by ELISA in the diagnosis of Mycobacterium tuberculosis. Method: This case-control study was performed on patients with pulmonary tuberculosis in 2017-2020. After selecting the case (n = 30) and control (n = 30) subjects according to inclusion criteria, their blood samples were obtained and analyzed in the reference laboratory by standard kits for immunoglobulin G against 16, 36, and 40 kDa antigens of mycobacterium tuberculosis. Results: The mean age of the subjects was 47.07 (15.57%). The majority of participants were 46 (51.1%) women. There was no significant difference between the two groups regarding sex and age. serological examination of patients with pulmonary tuberculosis showed 25 positive results and only 4 of the control group had a positive result. Sensitivity, specificity, positive and negative predictive values of serology test were 83.3%, 86.67%, 86.20% and 87.88% respectively. Conclusion: Despite the acceptable sensitivity of the serologic immunoglobulin G test, according to the statement of World health organization (WHO), it did not possess an acceptable specificity. It is recommended that a a wider range of different antigens to be studied also it is essential to evaluate the diagnostic value of the other immunoglobulins inpatient in different stages of the disease.

Metformin protects against diabetes–induced heart injury and dunning prostate cancer model

2020 ◽  
pp. 096032712094745
Author(s):  
BB Bayrak ◽  
P Koroglu ◽  
O Karabulut Bulan ◽  
R Yanardag
Keyword(s):  
Prostate Cancer ◽  
Tissue Damage ◽  
Total Antioxidant Status ◽  
Experimental Period ◽  
Heart Tissue ◽  
Diabetic Rats ◽  
Control Group ◽  
Cancer Group ◽  
Total Antioxidant

In this study, both diabetes and Dunning prostate cancer were induced for the first time in Copenhagen rats in vivo. Thus, the effects of metformin against heart tissue damage of these rats were investigated by biochemical methods. Dunning prostate cancer was induced in Copenhagen rats using high metastatic MAT-LyLu cells. The rats were divided as follows: Control group: only injected with 0.9% NaCl for 14 days; Diabetic group: only injected single dose of streptozotocin (STZ) (65 mg/kg); Cancer group: subcutaneously (s.c) inoculated with 2 x 104 MAT-LyLu cells only; Diabetic + cancer (DC) group: inoculated with 2 x 104 MAT-LyLu cells and STZ injection, Cancer + metformin (CM) group: injected with metformin for 14 days after Mat-LyLu cells application; Diabetic + cancer + metformin (DCM) group: metformin administered for 14 days together with STZ and Mat-LyLu cells. At the end of the experimental period, heart tissues were taken. Reduced glutathione and total antioxidant status levels in heart tissues were decreased, whereas lipid peroxidation, advanced oxidized protein products, nitric oxide, homocysteine, and reactive oxygen species levels, total oxidant status and catalase, superoxide dismutase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase, alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase and xanthine oxidase activities increased in the diabetic, cancer and DC groups. Treatment with metformin reversed these effects. In conclusion, the present study shows that metformin has a protective effect against heart tissue damage in STZ-induced diabetic rats with Dunning prostate cancer.

Diagnostic performance of microRNAs in the circulation in differential diagnosis of BPH, chronic prostatitis and prostate cancer

2018 ◽  
Vol 44 (4) ◽  
pp. 417-425 ◽  
Author(s):  
Yakup Dülgeroğlu ◽  
Onur Eroğlu
Keyword(s):  
Prostate Cancer ◽  
Chronic Prostatitis ◽  
Diagnostic Performance ◽  
Serum Levels ◽  
Diagnostic Value ◽  
Prostatic Hyperplasia ◽  
Qrt Pcr ◽  
Cancer Group ◽  
Diagnostic Potential ◽  
Specificity And Sensitivity

Abstract Background In this study, the objective was to evaluate the diagnostic performance of some miRNAs, which were shown to have a diagnostic value for prostate cancer (PCa), and the effect of chronic prostatitis in distinguishing benign prostatic hyperplasia (BPH) and PCa. Materials and methods Serum levels of 11 miRNAs were investigated in BPH, chronic prostatitis and PCa patients. Measurements were performed using qRT-PCR. Results In the analysis, serum levels of miR-375, -125b-5p, -30c-5p, -26b-5p, and let-7c-5p were downregulated in cancer compared with non-cancer group and AUCs of these miRNAs in distinguishing PCa group from non-cancer group were calculated as 0.781, 0.782, 0.762, 0.874, and 0.845, respectively. AUC of the combination of miR-375 and miR-26b-5p in distinguishing PCa group from non-cancer group was 0.891, AUC of these two miRNAs in distinguishing PCa group from BPH group was 0.944. Conclusion In our study, 11 miRNAs were studied and 5 of these miRNAs were considered as biomarker candidates as these miRNAs, individually or combined, could be used to distinguish PCa from benign conditions. Furthermore, a higher specificity and sensitivity were obtained in distinguishing BPH and PCa when data for diagnostic potential of miRNAs were analyzed without including chronic prostatic group.

scholarly journals PP13 and PAPP-A in the First and Second Trimesters: Predictive Factors for Preeclampsia?

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Narges Moslemi Zadeh ◽  
Farshad Naghshvar ◽  
Sepideh Peyvandi ◽  
Parand Gheshlaghi ◽  
Sara Ehetshami
Keyword(s):  
Early Diagnosis ◽  
Predictive Factors ◽  
Statistical Tests ◽  
Protein A ◽  
Serum Levels ◽  
Diagnostic Value ◽  
Control Group ◽  
Case Group ◽  
Predictive Values ◽  
Sensitivity Specificity

Background. Preeclampsia affects 5-6% of all pregnancies. Predictive factors of preeclampsia can be helpful in early diagnosis of this disease. In this study the predictive values of biochemical markers placenta protein 13 (PP13) and pregnancy-associated plasma protein A (PAPP-A) have been assessed in early diagnosis of preeclampsia. Methods. This case-control study was conducted on 1500 women who presented to a healthcare center of Sari, Iran, between 2010 and 2011. Blood samples were drawn in weeks 11–13 and 24–28 of pregnancy. Of them who developed preeclampsia were considered as case group. A control group consisted of similar women regarding mean age, body mass index (BMI), and pregnancy age. PAPP-A and PP13 serum levels were measured. Data were analyzed using proper statistical tests. Results. PAPP-A and PP13 serum levels were significantly lower in both the first and second trimesters in women who developed preeclampsia (P<0.001). The cumulative value of all four variables with cut-off point of 238.5 has sensitivity, specificity of 91.0%, and undercurve surface of 0.968 which is the most diagnostic value for preeclampsia. Conclusion. It is possible to advantage measuring of PAPP-A and PP13 in the first and second trimesters especially their cumulative values in both trimesters for prediction of the incidence of preeclampsia.

Ultrasonography-Guided Core Needle Biopsy Diagnostic Value in Breast Lump Assessment: An Experience From the Middle East

2020 ◽  
Vol 37 (1) ◽  
pp. 5-11
Author(s):  
Ahmed Hussein Al-Ismaeel ◽  
Ahmed Nugud ◽  
Assmaa Nugud ◽  
Shomous Nugud
Keyword(s):  
Sensitivity And Specificity ◽  
Core Needle Biopsy ◽  
Needle Biopsy ◽  
Ductal Carcinoma ◽  
Diagnostic Value ◽  
Management Plan ◽  
Detection Methods ◽  
Predictive Values ◽  
Core Needle ◽  
Tertiary Center

Objective: Breast cancer is a leading cause of mortality in industrialized and developing countries. Mammography and a core needle biopsy are among the detection methods that are used to diagnose and confirm tumor subtypes. Methods: A retrospective, noninterventional observational study was conducted in a tertiary center between January 2009 and December 2014. A total of 265 patients underwent ultrasonography (US)–guided core needle biopsy (CNB). A cohort of 147 patients met the inclusion criteria and data were subsequently extracted from their medical records. Results: From this cohort, US-CNB detected malignant lesions in 109 patients, with a total sensitivity and specificity for malignancy at 96.33% and 75.10%, respectively. The most frequent malignant tumor diagnosed with US-CNB was invasive ductal carcinoma. The most common benign masses detected were 38 (32.1%) fibroadenomas and fat necrosis. The positive and negative predictive values for US-CNB were 92.4% and 87.5%, respectively. Conclusion: The findings would suggest that the use of US-CNB could play a major role in the identification and management of the breast lesions. It could also redeem any biopsy errors or operator inexperience. Sensitivity and specificity in detecting tumors, malignant or benign, using US-CNB could aid in efforts to provide an appropriate medical management plan.

scholarly journals The Diagnostic Significance of PDGF, EphA7, CCR5, and CCL5 Levels in Colorectal Cancer

Biomolecules ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 464 ◽  
Author(s):  
Üçüncü ◽  
Serilmez ◽  
Sarı ◽  
Bademler ◽  
Karabulut
Keyword(s):  
Colorectal Cancer ◽  
Early Diagnosis ◽  
Colorectal Carcinoma ◽  
Area Under The Curve ◽  
Control Group ◽  
Healthy Controls ◽  
Diagnostic Significance ◽  
Predictive Values ◽  
Sensitivity Specificity ◽  
Potential Biomarkers

In this study, we compared the levels of C-C chemokine receptor type 5 (CCR5), C-C motif chemokine ligand 5 (CCL5), platelet-derived growth factor (PDGF), and EphrinA7 (EphA7) in patients with colorectal carcinoma and healthy controls in order to investigate the significance and usability of these potential biomarkers in early diagnosis of colorectal cancer. The study included 70 colorectal carcinoma patients and 40 healthy individuals. The CCR5, CCL5, PDGF, and EphA7 levels were measured using ELISA in blood samples. PDGF-BB, EphA7, CCR5, and CCL5 levels of the patients with colorectal carcinoma were significantly higher compared to the control group (p < 0.001 for each comparison). Our logistic regression analysis (the area under the curve was 0.958) supports the notion that PDGF-BB, EphA7, and CCL5 are potential biomarkers for the diagnosis of colon cancer. The sensitivity, specificity, and positive and negative predictive values were found to be 87.9%, 87.5%, 92.1%, and 81.4%, respectively. To our knowledge, this is the first study that investigates the relationship between colorectal carcinoma and the four biomarkers CCL5, CCR5, PDGF, and EphA7. The significantly elevated levels of all these parameters in the patient group compared to the healthy controls indicate that they can be used for the early diagnosis of colorectal carcinoma.

Serum carbohydrate sulfotransferase 7 in lung cancer and non-malignant pulmonary inflammations

2018 ◽  
Vol 56 (8) ◽  
pp. 1328-1335 ◽  
Author(s):  
Željko Debeljak ◽  
Sandra Dundović ◽  
Sonja Badovinac ◽  
Sanja Mandić ◽  
Miroslav Samaržija ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Neuron Specific Enolase ◽  
Diagnostic Value ◽  
Control Group ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Biomarker Panel ◽  
Cancer Group ◽  
Machine Learning Approach ◽  
Roc Area

Abstract Background: Carbohydrate sulfotransferases (CHST) were shown to be involved in carcinogenesis. The aim of the study was to assess the diagnostic value of serum CHST7 concentration in differentiation between lung cancer and non-malignant pulmonary inflammations. Methods: Clinical case-control study involving 125 participants was conducted: the control group containing cases of pneumonia and chronic obstructive pulmonary disease was compared to the lung cancer group composed of primary and metastatic cancers. Serum concentrations of CHST7 and routinely used markers including carcinoembryonic antigen (CEA), cytokeratin fragment 21-1 (CYFRA 21-1) and neuron-specific enolase (NSE) were determined for each participant using immunochemical methods. Statistical association, receiver operating characteristic (ROC) analysis and cross-validation were used for the evaluation of CHST7 either as a standalone biomarker or as a part of a biomarker panel. Results: In comparison to the control group, serum CHST7 was elevated in lung cancer (p<0.001), but no differences between the overall stages of primary cancers were detected (p=0.828). The differentiation performance in terms of ROC area under curve (AUC) was 0.848 making CHST7 superior biomarker to the NSE (p=0.031). In comparison to CEA and CYFRA 21-1, the performance differences were not detected. CHST7 was not correlated to other biomarkers, and its addition to the routine biomarker panel significantly improved the cross-validated accuracy (85.6% vs. 75.2%) and ROC AUC (p=0.004) of the differentiation using a machine learning approach. Conclusions: Serum CHST7 is a promising biomarker for the differentiation between lung cancer and non-malignant pulmonary inflammations.

scholarly journals Estimation of the Diagnostic Value of the Shape of Trigeminal Nerves and Their Neurovascular Relationships in the Diagnosis of Trigeminal Neuralgia

2020 ◽  
Vol 100 (6) ◽  
pp. 339-346
Author(s):  
A. V. Bakunovich ◽  
V. E. Sinitsyn ◽  
E. A. Mershina ◽  
Yu. A. Grigoryan
Keyword(s):  
Trigeminal Neuralgia ◽  
Reference Point ◽  
Diagnostic Value ◽  
Reference Points ◽  
Control Group ◽  
Cross Sectional ◽  
Predictive Values ◽  
Anatomical Characteristics ◽  
The Cross ◽  
Trigeminal Nerves

Objective: to estimate the diagnostic value of the anatomical characteristics of the intracisternal portions of the trigeminal nerves and adjacent arteries in diagnosing classical trigeminal neuralgia (TN).Material and methods. Fast Imaging Employing Steady-state Acquisition (FIESTA) using an isotropic MRI sequence was used to analyze the anatomical characteristics of the intracisternal portions of the trigeminal nerves and adjacent arteries in 133 patients, including 86 patients aged 55±11 years with clinically and surgically verified TN and in 47 patients aged 51±16 years in the control group. The investigators measured the cross-sectional areas of the trigeminal nerves at 5 mm from the pons cerebelli, the ratio of the largest-to-smallest nerve diameters at similar points, the distance to the adjacent arteries, and that between the closest neurovascular contact (NVC) point and the pons cerebelli. Characteristic curves (CC) were constructed and reference points with the highest specificity were selected with an acceptable sensitivity level for all parameters. Positive and negative predictive values (PPV and NPV, respectively) are determined for each reference point.Results. The area under the CC was equal to 0.77 for the ratio to the diameters of the trigeminal nerves near the pons cerebelli. At a reference point of 1.89, the sensitivity/specificity (Se/Sp) ratio was 0.57/0.82 with a PPV of 0.74 and an NPV of 0.83. The area under the curve for the cross-sectional areas of the trigeminal nerves at the pons cerebelli was 0.76. The reference point with an area of 3.65 mm2 yielded a Se/Sp ratio of 0.52/0.8 with a PPV of 0.51 and an NPV of 0.91. The distance to the adjacent artery gave an area under the CC of 0.72. The Se/Sp ratio at a reference point of 1.65 mm turned out to be 0.53/0.789 at a PPV of 0.55 and an NPV of 0.92. The area under the CC for the distances between the NVC point and the pons cerebelli was 0.75. The reference point of 4.05 mm with a Se/Sp index of 0.6/0.78 was characterized by a PPV of 0.77 and an NPV of 0.94.Conclusion. All the analyzed anatomical parameters showed an acceptable diagnostic value in diagnosing TN. Certain reference values of the parameters can be used to diagnose TN with the highest acceptable specificity at the maximum NPV to reduce frequent false-positive results. 

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