نتایج جستجو برای: hla classib
تعداد نتایج: 40050 فیلتر نتایج به سال:
The human leukocyte antigen G (HLA-G) molecule exhibits limited tissue distribution, low polymorphism and alternative splicings that generate seven HLA-G isoforms. HLA-G exerts multiple immunoregulatory functions. Recent studies indicate an ectopic up-regulation in tumor cells that may favor their escape from anti-tumor immune responses. This study it is an effort to clarify the presence of HLA...
Background Alzheimer’s disease (AD), Parkinson’s (PD), Amyotrophic Lateral Sclerosis (ALS) and other neurodegenerative diseases are responsible for considerable morbidity mortality. With incidence rising with aging, these also represent a growing societal challenge. Pathophysiology involves accumulation of tau (neurofibrillary tangles) Amyloid-β-rich (amyloid plaques) aggregates in AD, α-synucl...
ناحیه غنی از ژن mhc با طولی حدود 6/3 مگا جفت باز بر روی بازوی کوتاه کروموزوم 6 قرار دارد. اکثر ژنهای این ناحیه در تنظیم پاسخهای ایمنی بدن نقش دارند. ناحیه mhc در مهرهداران غنیترین منبع پلیمورفیسم پروتئینها را تشکیل میدهد. این ناحیه به سه بخش به نامهای hla کلاس یک، دو و سه تقسیم میشود. ژنهای کلاس دو hla بسیار متنوع هستند و پروتئینهایی را کد میکنند که در عرضه آنتی ژنهای خارجی به سلولهای cd4+t نقش...
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...
مقدمه: hla کلاس iو iiنقش عمده ای در پاسخ ایمنی میزبان نسبت به ویروس نقص ایمنی انسانی (hiv) دارد بطوری که به عنوان یک عامل مهم در پیشرفت به سمت بیماری ایدز شناخته می شود. هدف مطالعه بررسی ارتباط انواع آلل های hlaمستعد کننده و پیشگیری کننده با سیر بیماری در افراد hiv مثبت در مقایسه با افراد سالم می باشد. روش بررسی: این بررسی بصورت مورد– شاهدی انجام شد، که hla کلاس i (hla-a-b) و کلاس ii (hla-dr, d...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید