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Comparing the Expression Levels of Mrna for Mmp-7 in Gastric Mucosa of Patients With H. Pylori Infection and Uninfected Patients



Sadeghiani M1 ; Shahi H1 ; Bagheri N2 ; Reiisi S3 ; Rahimian G4 ; Rashidii R4 ; Shafigheardestani M4 ; Chaleshtori MH5 ; Rafieiankopaei M6 ; Ramezani G7 ; Fatollahi F7 ; Shahverdi E7 ; Shirzad H5
Authors
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Authors Affiliations
  1. 1. Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
  2. 2. School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Genetics, Faculty of Basic Sciences, University of Shahrekord, Shahrekord, Iran
  4. 4. Department of Gastroenterology, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
  5. 5. Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
  6. 6. Medicinal Plants Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
  7. 7. Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran

Source: Journal of Mazandaran University of Medical Sciences Published:2016

Abstract

Background and purpose: The expression of growth factors, proteolytic enzymes, fibrogenic factors, and cytokines are altered in Helicobacter pylori (H. pylori) infected gastric mucosa. Matrix metalloproteinases (MMP) are a family of zinc-dependent homologous enzymes digesting most of the components of the extracellular matrix and basement membrane and are involved in remodeling and functioning of the biological processes. The purpose of this study was to compare gene expression of matrix metalloproteinase-7 (MMP-7) in patients with H. pylori-infected and uninfected individuals with gastrointestinal diseases. Materials and methods: This study was conducted in 50 H. pylori-negative patients and 50 H. pylori-positive patients being admitted to Shahrekord Hajar Hospital due to gastrointestinal diseases in 2014. The participants’ demographic information was collected and sampling was done. First DNA was extracted, and then PCR was performed to check for the presence of 16sRNA and UreC. The RNA from each sample was also extracted and cDNA was prepared. Afterwards, the expression of MMP-7 was measured by real time-PCR using specific primers and probes. Results: MMP-7 mRNA expression was significantly higher in biopsies of H. pylori-infected patients compared to that in H. pylori-uninfected patients (P<0.0001). Conclusion: Increased expression of MMP-7 can be effective in inflammatory response and development of the disease. It could be used as a key marker for early diagnosis of gastrointestinal diseases and gastric cancer. © 2016, Mazandaran University of Medical Sciences. Engineering. All rights reserved.