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Showing 2 results for Tumor Biomarkers
Measurement of APRIL serum levels as a tumor marker for diagnosis of pancreatic cancer
Amin Hassanzadeh Nemati , Seyed Kazem Bidoki ,
Volume 74, Issue 9 (12-2016)
Abstract

Background: Members of the tumor necrosis factor (TNF) superfamily of ligands and their receptors (TNFR) are critical regulators of the adaptive immune system. A proliferation inducing ligand (APRIL) is a member of tumor necrosis factor superfamily. APRIL was identified via database mining in 1998 by Hahne, et al. APRIL allows tumor cells to proliferate at a reasonable rate even in low serum. APRIL is abundantly expressed in many tumor cells and tumor tissues. Increasing level of APRIL expression related to replacement of -Arg-Lys-Arg-Arg- motif by -Ala-Lys-Arg-Ala- between amino acids 101-104 and thus abrogated APRIL processing. Previous studies have shown a correlation between APRIL expression with some autoimmune disease, breast cancer, stomach cancer, esophagus cancer and colorectal cancer. Herein, we explore correlation between serum APRIL with pancreatic cancer.

Methods: Our study is performed in digestive disease research institute (DDRI) of the Shariati Hospital in Tehran City and affiliated Hospital of Tehran University of Medical Sciences. In this study, concentrations of serum APRIL in sera (30 pancreatic cancer patients and 30 healthy controls) from November 2011 to November 2013 collected and level of a proliferation inducing ligand measured by ELISA technique. In this study used from SPSS software, version 22 (IBM SPSS, Armonk, NY, USA) to perform statistical data analysis.

Results: The case group measurement results compared with control groups results according to some characteristics such as age, smoking and, diabetes. ELISA analysis of APRIL measurements show that mean serum APRIL level of pancreatic cancer patients (7 ng/ml) was significantly higher than control group (5 ng/ml). The p-value of this study was 0.003.

Conclusion: Our results indicate that serum APRIL, as a potential biomarker, has a positive diagnosis and prognosis value for pancreatic cancer.

Investigation of the relationship between prostate specific antigen doubling time and the severity of a malignant tumor of the prostate
Solmaz Ohadian Moghadam , Erfan Amini , Mohsen Ayati , Hassan Jamshidian , Seyed Ali Moemeni , Farshad Sheybaee Moghaddam , Mohammad Reza Nowroozi ,
Volume 77, Issue 10 (1-2020)
Abstract
Background: Prostate cancer has been reported as a worldwide important kind of cancer and the second most common cause of cancer-related mortality among men. Prostate-specific antigen (PSA) serum level is one of the most important markers of prostate cancer diagnosis. While PSA level helps predict the risk of prostate cancer development, researchers still looking for ways to increase the accuracy of prognostic models. To increase the specificity of PSA and decrease of unnecessary biopsies and morbidity, PSA-related parameters such as PSA doubling time (PSADT) have been used. In this study, the relationship between this factor and the severity of prostate cancer was evaluated.
Methods: In this retrospective study, the data of patients who were subjected to transrectal ultrasound-guided (TRUS) biopsy of the prostate and referred to Imam Khomeini Hospital, Tehran, between 2009 and 2017 were reviewed. We enrolled the men with at least two consecutive elevated PSA level within three months to calculate PSADT. Based on the pathology report, primary and secondary Gleason score (GS) were determined. Correspondingly, considering GS, the patients were divided into two groups with high-grade and low-grade tumor (GS<7 considered as low-grade and GS>7 considered as high-grade tumor).
Results: Totally, 1712 cases of TRUS biopsy of the prostate were studied. Among them, 547 (32.3%) had prostate cancer, of whom 73 cases were eligible based on inclusion criteria and were consented to enroll in the study. According to the data obtained, we found a significant difference in PSADT between the two groups of patients with high-grade and low-grade malignancy (mean±SD PSADT, 9.8±14.2 vs. 16.1±14.9 respectively, P=0.004). Considering the seven months as the cut-off point for PSADT in determining malignancy, there was a significant difference between the two groups according to Fisher's exact test (P=0.01).
Conclusion: In our study, PSADT cut-off of 7 months provided the greatest accuracy for differentiation between low-grade and high-grade malignancy, and PSADT has acceptable accuracy for the diagnosis of high-grade tumors.

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