Hamidreza Jamaati1, Naghmeh Bahrami2, Mahya Daustany3, Payam Tabarsi4, Behrooz Farzanegan5, Seyed Mohammadreza Hashemian1, Abdolreza Mohamadnia6. 1. Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Craniomaxillofacial Research center, Tehran University of Medical Sciences, Tehran, Iran. Oral and Maxillofacial Surgery Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran. 3. Department of Biotechnology, Faculty of Sciences, Islamic Azad University, Tehran, Iran. 4. Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran. 5. Tracheal Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran. 6. Virology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran. Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract
BACKGROUND: Infectious diseases such as ventilator- associated pneumonia (VAP) are one of the serious problems in intensive care units (ICU) of hospitals. To date, there has been no appropriate clinical and diagnostic marker for early detection of this disease. In this study, expression of PIK3R3 and ATp2A1 genes in patients with VAP were assessed to be used as biomarkers to identify and confirm the disease. METHODS: This study was conducted by using peripheral blood samples of 60 individuals, including 30 patients with VAP and 30 healthy volunteers. First, the peripheral blood samples were taken and then RNA was extracted and converted into cDNA. Finally, the assessment of genes was performed by Real-time PCR. RESULTS: In peripheral blood samples, 46.6% and 30% were positive for PIK3R3 expression in patients and healthy groups, respectively. The ATp2A1 expression in patients and healthy controls were found 40% and 23.3%, respectively. Comparing the ΔCT obtained for the PIK3R3 and ATp2A1 genes showed statistically significant differences between the two groups of patients and healthy subjects (p=0.042, p=0.036). CONCLUSION: ATp2A1 and PIK3R3 may be used as biomarkers for early detection of VAP disease. However, further studies are required.
BACKGROUND: Infectious diseases such as ventilator- associated pneumonia (VAP) are one of the serious problems in intensive care units (ICU) of hospitals. To date, there has been no appropriate clinical and diagnostic marker for early detection of this disease. In this study, expression of PIK3R3 and ATp2A1 genes in patients with VAP were assessed to be used as biomarkers to identify and confirm the disease. METHODS: This study was conducted by using peripheral blood samples of 60 individuals, including 30 patients with VAP and 30 healthy volunteers. First, the peripheral blood samples were taken and then RNA was extracted and converted into cDNA. Finally, the assessment of genes was performed by Real-time PCR. RESULTS: In peripheral blood samples, 46.6% and 30% were positive for PIK3R3 expression in patients and healthy groups, respectively. The ATp2A1 expression in patients and healthy controls were found 40% and 23.3%, respectively. Comparing the ΔCT obtained for the PIK3R3 and ATp2A1 genes showed statistically significant differences between the two groups of patients and healthy subjects (p=0.042, p=0.036). CONCLUSION: ATp2A1 and PIK3R3 may be used as biomarkers for early detection of VAP disease. However, further studies are required.
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