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Year : 2019  |  Volume : 18  |  Issue : 2  |  Page : 97-102

Immunohistochemical evaluation of renal allograft biopsies from a sample of iraqi renal transplant recipients

1 Department of Microbiology, Al-Mustansiriyah College of Medicine, Baghdad, Iraq
2 Department of Histopathology, Al-Yarmouk Teaching Hospital, Baghdad, Iraq

Correspondence Address:
Dr. Taha Yaseen Al-Azzawi
No. 50, Street No. 51, Al-Mansour, Baghdad
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/MJ.MJ_11_19

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Context: Renal transplantation is the best treatment for end-stage renal disease, although some complication may arise after transplantation including transplant rejection and infection, each of the two can occur oppositely to the other since the insufficiently suppressed immune system can still attack the graft while excessively suppressed immune system may allow latent virus to reactivate. The best way to diagnose both of the conditions is by immunohistochemical staining using monoclonal antibodies specific for BK virus and C4d. Aims: This study aims to investigate the frequency of antibody-mediated rejection (AMR) and BK virus nephropathy (BKVN) in renal allograft biopsies in Iraq. Settings and Design: The study encompassed 53 renal transplant recipients who developed signs of renal dysfunction. Subjects and Methods: Renal allograft biopsies were collected from centre of nephrology and kidney transplantation and AL-Yarmouk teaching hospital in Baghdad from January to September 2017, biopsies were embedded, sectioned, fixed on slides and stained with hematoxylin and eosin and monoclonal antibodies specific for C4d and BK virus. Statistical Analysis Used: Data were tested using Chi-square test; the analysis was conducted using the available SPSS-24 Package. Results: Samples were obtained from 38 males and 15 females in whom their mean age was 36.0 ± 13.8 years, the average time between transplantation and biopsy was 33.5 ± 22.5 months, and there was 31 donation from related donor and 22 from unrelated donor. The frequency of BKVN was 1.8% and the frequency of AMR was 52%. Conclusions: Using immunostaining of renal allograft biopsies using anti-BKV antibodies and anti-C4d help in identifying the causes of renal impairment after transplantation that otherwise remain hidden.

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