OBJECTIVES To investigate clinical features of celiac disease (CD) and their association with risk factors for CD in a genetic risk birth cohort. METHODS Children from 6 clinical centers in 4 countries positive for HLA-DR3-DQ2 or DR4-DQ8 were annually screened for tissue transglutaminase antibodies (tTGA) and assessed for symptoms by questionnaires. Associations of symptoms with anthropometri...

BACKGROUND Of antigen-presenting cells (APCs) expressing HLA-DQ molecules in the celiac disease (CD) lesion, CD11c(+) dendritic cells (DCs) co-expressing the monocyte marker CD14 are increased, whereas other DC subsets (CD1c(+) or CD103(+)) and CD163(+)CD11c(-) macrophages are all decreased. It is unclear whether these changes result from chronic inflammation or whether they represent early eve...

Article is devoted to the review of literature data, and also the analysis of results of own researches concerning genetics, molecular genetics and immunological violations at various forms of the autoimmune diabetes (DM) including classical T1DM, LADA type and an autoimmune polyglandular syndrome of 1 type (APS1). In case of T1DM more than 80% of patients are carriers of one or two strongest p...

OBJECTIVES AND STUDY In the development of Celiac Disease (CD) both genetic and environmental factors play a crucial role. The Human Leukocyte Antigen (HLA)-DQ2 and HLA-DQ8 loci are strongly related to the disease and are necessary but not sufficient for the development of CD. Therefore, increasing interest lies in examining the mechanisms of CD onset from the early beginning. Differences in se...

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...

conclusions our investigation demonstrated that there is a highly significant association between the studied alleles and t1d. it can be construed that haplotype hla-dr3-dq2 has a very modest effect with respect to the risk of t1d. patients and methods this study was a case-control study. the number of samples was determined using the cochran formula. eighty unrelated t1d patients, including 42...

BACKGROUND Presentation of citrullinated neo-epitopes by HLA-DRB1 molecules that carry the shared epitope (SE) sequence was proposed to explain the association between HLA and seropositive RA. Although it is shown that several HLA-DRB1-SE molecules display enhanced binding affinities for citrullinated ligands, the ability of other HLA molecules to present citrullinated epitopes has not been inv...

BACKGROUND AND OBJECTIVE Almost 100% individuals with coeliac disease (CD) are carriers of the human leucocyte antigen (HLA) DQ2/DQ8 alleles. Earlier studies have, however, failed to consider the HLA system when estimating heritability in CD, thus violating an underlying assumption of heritability analysis. We examined the heritability of CD in a large population-based sample of twins, consider...

In diseases with a strong association with an HLA haplotype, identification of relevant T cell epitopes may allow alteration of the pathologic process. In this report we use a reverse immunogenetic approach to predict possible HLA class II-restricted T cell epitopes by using complete pool sequencing data. Data from HLA-DR2(B1*1501), -DR3(B1*0301), -DQ2(A1*0501, B1*0201), and -DQ8(A1*0301, B1*03...

Coeliac disease (CD) is a common autoimmune disorder characterized by an immune response to ingested gluten and has a strong HLA association with HLA-DQ2 and HLA-DQ8, but as human HLA-DQ risk factors do not explain the entire genetic susceptibility to gluten intolerance. Our aim was to investigate whether HLA-G, a gene located in the MHC class I region, and with important role in the induction ...