Başkent Üniversitesi Yayınları

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Author: search.filters.author.Daraie, MasumehSubject: search.filters.subject.FokI

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    Vitamin D Receptor Genotype in Pancreas Allograft: A Pilot Study
    (Başkent Üniversitesi, 2012-10) Rahsaz, Marjan; Esfandiari, Elaheh; Aghdaie, Mahdokht Hossein; Daraie, Masumeh; Karimi, Mohammad Hossein; Yaghubi, Ramin; Ayatollahi, Maryam; Geramizadeh, Bita; Nikeghbalian, Saman; Azarpira, Negar
    Objectives: Transplanting of pancreatic grafts is an established treatment for diabetes mellitus. Polymorphisms in genes, coding for proteins involved in an immune response, may influence immunologic and nonimmunologic mechanisms that lead to allograft loss. Vitamin D receptor agonists have been shown to increase long-term allograft survival in humans. Materials and Methods: Twenty-one pancreatic recipients transplanted in the Transplantation center of Shiraz University of Medical Sciences were selected and genotyped for the polymorphism of the vitamin D receptor genes (FokI), and the association of each genotype with acute rejection was evaluated. A control group of 100 unrelated otherwise healthy individuals, from the Iranian Blood Transfusion Organization were enrolled. The individuals were selected from Shiraz (a city located in Southern Iran), and the genotype frequency was compared with control group. Results: The overall prevalence acute rejection was 28% (6/21). In the genotype study, homozygous FF presented in 15 patients (71%), heterozygous Ff presented in 6 patients (29%), and no homozygous ff was identified. In the control group, there were 50% with FF, 48% with Ff, and 2% with the ff genotype identified. The only genotype that was detected in rejection group was FF, while the frequency of FF in the nonrejection group was 60%. Conclusions: This study examined several patients to determine whether the vitamin D receptor (FokI) genotype is involved in acute allograft rejection and requires deeper investigation.
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    Vitamin D Receptor Polymorphisms in Liver Transplant Recipients
    (Başkent Üniversitesi, 2010-12) Azarpira, Negar; Daraie, Masumeh; Geramizadeh, Bita; Salahi, Heshmatolah
    Objectives: Liver transplant is an established treatment for end-stage liver failure. Vitamin D has been shown to exert multiple immunomodulatory effects, which act through its own receptor (vitamin D receptor). In the present study, the association between Iranian patients with liver transplant and the polymorphism of vitamin D receptor FokI T>C (rs10735810) was investigated. Materials and Methods: The candidate gene locus was genotyped in 51 liver transplant recipients, and the association of each genotype with allograft acute rejection was evaluated. Results: In this study, we found no evidence to suggest that vitamin D receptor FokI polymorphism determines the incidence of acute rejection after liver transplant. The distribution of alleles was not different according to the underlying liver disease. Conclusions: Larger epidemiologic studies are needed to elucidate the importance of vitamin D receptor gene polymorphism in transplant recipients.