background: hla b27 is a sub class of human leukocyte antigen (hla) class i molecule. it was known as the first genetic risk factor associating with ankylosing spondylitis (as). allele frequency of hla-b27 alleles is different across populations. the present study is aimed to investigate the prevalence of hla-b27 in patients referred to danesh clinical laboratory during 2014 to 2015. methods an...

background: human leukocyte antigens (hla) are polymorphic cell surface proteins. distribution of hla alleles vary among different racial and ethnic populations in unrelated stem cell registries. determination of hla allele frequencies in different ethnic groups is useful for population genetic analyses. materials and methods: based on data available from the iranian stem cell donor registry, h...

Introduction: Sequential lymphomas involving both classical Hodgkin Lymphoma (cHL) and Primary Mediastinal B-cell have been previously reported but initial diagnosis of cHL followed by a distinct Diffuse Large B-Cell (DLBCL) or vice versa is an extremely rare phenomenon. Multiple etiological factors are involved in lymphoma pathogenesis. The major histocompatibility complex (MHC) has studied ex...

Background: A common Human Leukocyte Antigen (HLA) class II allele, DQβ1*03:01, seems to be associated with Bullous pemphigoid (BP) in Caucasians whereas previous studies in other ethnic groups showed other HLA class II alleles as genetic predisposing factors for BP. Objective: To investigate the association of HLA class II alleles and haplotypes with BP in Iranian population. Methods: Fifty pa...

Background: In addition to Human Leukocyte Antigens (HLA) compatibility, gene polymorphisms in cytokines might also be important in the quality of allogeneic immune response. Objective: To evaluate the influence of HLA-DR matching and a number of cytokine gene polymorphisms on acute rejection after living-unrelated donor (LURD) kidney transplantation. Methods: A total of 42 renal transplants pe...

Minor histocompatibility antigens (MiHAs) are polymorphic peptides on the cell surface derived from self-proteins that capable to induce an immune response during allogeneic hematopoietic stem cells transplantation. Their presentation occurs in context of certain major complex (HLA – human leucocyte antigen) alleles. One most common HLA alleles is HLA-A*02:01. Accordingly, for a significant num...

testing revealed that the patient was positive for HLA-DRB1*04, HLA-DRB1*12, HLA-DQB1*03, andHLA-DQB1*04. To best of our knowledge, this is first case fulminant T1DM reported to occurimmediately after COVID-19 infection.