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Saudi Journal of Kidney Diseases and Transplantation
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ORIGINAL ARTICLE Table of Contents   
Year : 2012  |  Volume : 23  |  Issue : 5  |  Page : 993-999
Expression of angiotensin-converting enzyme mRNA gene in the kidneys of patients with glomerulonephrites

1 Department of Internal Medicine and Nephrology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
2 Department of Clinical Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt

Correspondence Address:
Alsayed Ahmed Alnahal
Department of Internal Medicine and Nephrology, Zagazig University, Zagazig
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1319-2442.100881

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A little is known about the behavior of the renin-angiotensin system (RAS) in glomerulo-nephritis (GN), although it is activated in other models of injury. To study renal angiotensin-converting enzyme (ACE) messenger ribonucleic acid (mRNA) gene expression in patients with GN to determine its role in the disease process and other factors that may influence the course of the disease and the prognosis, e.g. treatment with ACE inhibitor (ACEI) drugs, we studied 20 patients with GN allocated to two groups: ten patients received an ACEI drug and ten patients did not receive ACEI in addition to a control group of ten healthy subjects. Routine and special laboratory investigation, histopathological studies and quantitative polymerase chain reaction analysis for renal ACE mRNA were done for both the study and the control groups. There was a statistically significant increase in ACE mRNA gene expression in the GN groups than in control group, but no statistically significant difference in ACE mRNA gene expression between the patients group that received and the group that did not receive ACEI. A significant correlation was found between the ACE mRNA gene expression and the mean blood pressure, serum creatinine, blood urea nitrogen and 24-h urinary protein. In conclusion, a higher level of ACE mRNA gene expression in patients suffering from GN may suggest a role of the RAS in the process of GN, perhaps contributing to glomerular hypertrophy and matrix overproduction. The use of ACEI drugs possibly slows the rate of progression of renal failure and plays a role in controlling the pathophysiology.

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