نتایج جستجو برای: hla class i
تعداد نتایج: 1404625 فیلتر نتایج به سال:
Background : Ankylosing spondylitis (AS) represents a progressive and debilitating disease that affects approximately 0.9% worldwide. So far the precise mechanisms underlying the initiation and progression of AS is still unclear. Linkage between HLA-B27 and AS remains the strongest association between a human leukocyte antigen (HLA) class I molecule and disease. Despite intensive research, the ...
the human leukocyte antigen has become a key component in investigating the genetic relationships between populations. the aim of this study was to determine the genetic diversity of hla class i and ii alleles among zaboli ethnic group of south-east iran to establish a database for further investigations on ancestry and the genetic factors contributing to complex diseases in this region. unrela...
Background: Natural Killer (NK) cells, through mechanisms such as cytotoxicity and cytokine production, are among the first line of defence against infections. The ability of NK cytotoxicity is related to Killer cell immunoglobulin-like receptors (KIR) found on the cell surface. Interaction between KIRs and human leukocyte antigen (HLA) class I molecules regulate NK cells responses to eliminate...
A random sample of 500 healthy unrelated subjects from Esfahan province were HLA typed for A, 8 and C locus antigens. The lymphocytes were separated from 5 ml of whole peripheral blood and were typed for HLA _ A, 8 and C by using the standard two stage microlymphocytotoxicity NIH technique. The findings suggest that in the study population, frequency of HLA-Al' A2, A3, Ag HLA-8s, 83S and HLA-CW...
Background: Interaction between killer cell immunoglobulin-like receptors (KIR) and human leukocyte antigen (HLA) class I molecules is important for regulation of natural killer (NK) cell function. Objective: The aim of this study was to investigate the impact of compound KIR-HLA genotype on susceptibility to acute leukemia. Methods: Cohorts of Iranian patients with acute myeloid leukemia (AML;...
cd8+ t cells are thought to play an important role in protective immunity to tuberculosis. the major histocompatibility complex class i subtype hla-a*0201 is one of the most prevalent class i alleles, with a frequency of over 30% in most populations. hla-a*0201 transgenic, h-2db/mouse beta2-microglobulin double-knockout mice (hhd) which express human hla-a*0201 but no mouse class i, was shown t...
Objective: This study aimed to investigate the association between HLA alleles and visceral leishmaniasis (VL) in a sample of Iraqi patients. Methods: A total of 30 patients were studied, in addition to 20 age, gender and ethnicity matched controls. All subjects were genotyped by polymerase chain reaction-sequence specific primers (PCR-SSP) method. Results: For HLA-class I region (A and B loci)...
The association of HLA and disease varies in different populations. We have . studied the association of HLA class I in Iranian psoriatic patients, in order to compare this association with other reports. Fifty-one Iranian patients with psoriasis were HLA typed. The frequency of HLA antigens in patients and patient subgroups, based on clinical patterns, age of onset, family history and prov...
HLA-G is a nonclassical HLA class Ib, which is located on chromosome 6 (6p.21.3). In contrast to HLA class I molecules, HLA-G has restricted polymorphism. Expression of this molecule in the physiological conditions limits to certain tissues such as thymus, cornea, nail matrix, trophoblast and pancreas. Up to now, 50 alleles of HLA-G molecules have been discovered with 16 distinct functional pro...
چکید ه سابقه و هدف به‌دنبال انتقال خون، آنتیبادیهای ضد HLA وآنتی‌ژن‌های اختصاصی پلاکتی ایجاد می‌شوند که منجر به مشکلات مختلفی مانند مقاومت پلاکتی می‌گردند. به‌نظر می‌رسد بررسی آنتیبادیهای ضد HLA و آنتی‌ژن‌های اختصاصی پلاکتی در انتخاب و پایش روش درمانی مناسب، مفید باشد. هدف این مطالعه بررسی آنتیبادیهای ضد HLA و آنتی‌ژن‌های اختصاصی پلاکتی در بیماران مبتلا به اختلالات خونی(لوکمیای حاد...
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