نتایج جستجو برای: hla antibodies
تعداد نتایج: 196855 فیلتر نتایج به سال:
BACKGROUND/AIMS The frequency of HLA markers associated with rapid progression to AIDS was evaluated in Brazilian patients with AIDS exhibiting or not toxoplasmic retinochoroiditis (TRC). METHODS 98 AIDS patients (25 with TRC, 43 with anti-T. gondii antibodies but without TCR, and 30 without anti-T. gondii antibodies and without TCR) were studied. RESULTS The HLA-B35 was significantly incre...
Erythropoietin (EPO) was first known as a factor for red blood cell proliferation and differentiation. Recent studies show the effects of EPO on immune system. In this study the antihuman leukocyte antibody (anti-HLA) titer were determined in five groups of rats, which had been sensitized with human lymphocyte. Also, the effects of stimulation's frequency and dose of recombinant human erythropo...
BACKGROUND Chronic humoral rejection is a progressive form of graft injury, with defined diagnostic criteria, the crucial one being the evidence of circulating anti-donor antibodies. These antibodies are mainly directed against human leucocyte antigens (HLA), but other targets have also been described. We previously reported that antibodies against the Glutathione S-transferase T1 (GSTT1) enzym...
β2m: β2-Microglobulin; β2m-free HC: β2m-free Heavy Chain; CTL: CD8+ Cytotoxic T Lymphocytes; DSA: Donor Specific Antibodies; HC: Heavy Chain Polypeptide; HLA: Human Leukocyte Antigens; HLA-I: Human Leukocyte Antigen Class I; HLA-II: Human Leukocyte Antigen Class II; IFNγ: Interferon-γ; kDa: kilodalton; MHC: Major Histocompatibility Complex; MMP: Matrix Metalloproteinase; rHLA: Recombinant HLA; ...
The development of anti-donor humoral responses after transplantation associates with higher risks for acute rejection and 1-year graft survival in adults, but the influence of humoral immunity on transplant outcomes in children is not well understood. Here, we studied the evolution of humoral immunity in low-risk pediatric patients during the first 2 years after renal transplantation. Using da...
BACKGOUND: The prevalence of rheumatoid arthritis (RA) and its specific autoantibodies varies in different populations. This variability depends on the genetic polymorphism immune response genes among which HLA system plays a major role. AIM: We conducted preliminary study distribution HLA-DRB1 HLA-DQB1 first field level alleles sample 100 Albanian patients with RA. METHODS: In this context, we...
in addition to ultrasonographic monitoring of folliculogenesis, urinary luteinizing hormone testing, luteal phase endometrial biopsy, serum antiphospholipid antibodies, etc., immunologic tests are recently being used to evaluate reproductive disorders. in this study, sharing of hla-a, b, c and dr antigens and the presence of antipaternal cytotoxic antibody (apca) was assessed using microcytotox...
Clinical studies have demonstrated that HLA-DP-specific antibodies can be detrimental to a transplanted kidney. The number of patients affected is proportional to the frequency of DP antibodies. We determined the frequency of HLA-DP-specific antibodies en toto and in the absence of cross-reactive DR antibodies. Of 650 waitlisted renal patients, 271 (42%) were reactive with HLA-DP antigens in so...
HLA mismatching is an important risk factor for antibody-mediated rejection and transplant failure. With the realization HLA antibodies recognize epitopes rather than antigens, it has become apparent that donor-recipient compatibility should be assessed at the epitope level. Recent developments have increased our understanding of the structural basis of HLA antigenicity, i.e., the reactivity wi...
Rheumatoid arthritis (RA) is associated with HLA-DRB1 genes encoding a five amino acid basic motive, the shared epitope SE). Each genotype defines specific risk of developing RA. RA preceded by emergence anti citrullinated protein antibodies (ACPAs). Citrullin neutral version arginin, acid, formed after post translational modification Peptidyl Arginyl Deiminases (PADs). are also ACPAs. Two mode...
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