Volume 23, Issue 4 (7-2019)                   IBJ 2019, 23(4): 297-302 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Alikhani M, Shafaie E, Mirabzadeh Ardakani E, Esmaeili M, Saberi S, Hatefi M et al . The Inhibitory Effect of Mouse Gastric DNA on Amplification of Helicobacter pylori Genomic DNA in Quantitative PCR. IBJ 2019; 23 (4) :297-302
URL: http://ibj.pasteur.ac.ir/article-1-2494-en.html
Abstract:  
Background: Quantitation of Helicobacter pylori (Hp) in the gastric tissue is essential for assessment of vaccination/therapeutic regimens. Methods & Results: Here, the inhibitory effect of mouse gastric DNA (MgDNA) on amplification of Hp genomic DNA (HpDNA) was evaluated by spiking HpDNA with serial dilutions of MgDNA, which yielded concentrations of >10 ng/µl and >0.63-10 ng/µl of MgDNA, as inhibition and interference zones, respectively. Mice were then inoculated with varying doses of Hp and assessed at the inhibition-free concentration of 0.63 ng/µl. The average Hp copy numbers per microgram of gastric tissue discriminated mice having received high vs. low dose inoculums (p < 0.001). Secondly, Hp copy numbers were quantitated in immunized mice, which demonstrated significantly lower numbers, in reference to controls (p = 0.006). Conclusion: Our method, bypassing the inhibition and/or interference imposed by MgDNA, was able to quantitate gastric tissue-colonizing Hp, segregating mice inoculated with low vs. high doses of Hp, as well as those immunized from controls.
Type of Study: Short Communication | Subject: Related Fields

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Iranian Biomedical Journal

Designed & Developed by : Yektaweb