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Showing 2 results for Harzandi
Sayeneh Khodadadi, Ashraf Mohabati Mobarez, Naser Harzandi , Bahman Tabaraei , Nima Khoramabadi, Amir Bakhtiyari , Hanyieh Aghababa ,
Volume 12, Issue 1 (spring 2012)
Abstract
Background & Objectives: The identification of Brucella spp. antigens with the capacity to elicit a protective immune response is of the great interest for the researchers. So, characterization and assessment of diverse antigens of Brucella need to be evaluated. In this study, we report the cloning and expression of the gene coding for 31 KDa OMP (OMP31) of Brucella melitensis 16M. Methods: Brucella melitensis Omp31 gene was amplified with specific primers, cloned into pJET1/2 and subsequently subcloned in pET28a (+) vector. Both these recombinant plasmids were sequenced and then after, expression of recombinant protein was induced by 1mM IPTG. Western blot analysis was also performed by polyclonal rabbit antiserum. Results: Omp31 successfully was cloned in both plasmid vectors. The recombinant Omp31 was expressed in E.coli host and purified with significant yield. Western blot results along with those of sequencing ensured accurate production of recombinant omp31 and retaining of its partial epitopes. Conclusion: Our results show that, an expression host such as E. coli is suitable for omp31 production.
Zahra Ashouri Saheli, Mohammad Shenagari , Naser Harzandi , Ali Monfared,
Volume 19, Issue 2 (summer 2019)
Abstract
Background & objectives: Immunosuppressive drugs that are used for decreasing risk of acute rejection and renal graft loss can lead to reactivation of latent viruses for example BKV and JCV in either renal allograft or recipients. These viruses can lead to renal graft loss. The purpose of this study was to evaluate the quality and quantity of the genome of these two viruses in the renal recipients’ plasmas for early detection.
Methods: In this retrospective descriptive study, at first, DNA extraction test was performed on 102 plasma samples of renal allograft recipients. And then, BKV and JCV DNAs were detected and quantified by Real-Time PCR.
Results: Fifty four (52.94%) BKV DNA positive and 26 (25.50%) JCV DNA positive were found in 102 recipient plasma samples. Linear range of measurements for BKV and JCV DNAs were within the range of 10 7-0.596 copies/ µl and 10 7-0.528 copies/ µl respectively. After calculation of genes amounts based on copy/ml in the plasmas, numbers and percent of positive cases were highlighted in the four categories. BKV and JCV DNA (Co-infection) were detected in 22 (21.56%) plasma samples.
Conclusion: Real-time PCR is a quantitative and qualitative PCR method that can detect genome of any type of organisms and their amounts (even in trace amounts), so using of this method is very important for early detection of viruses which can cause diseases and graft rejection in renal transplant recipients.
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