OBJECTIVE Specific alleles of non-HLA genes INS, CTLA-4, and PTPN22 have been associated with type 1 diabetes. We examined whether some of these alleles influence development of islet autoimmunity or progression from persistent islet autoimmunity to type 1 diabetes in children with high-risk HLA-DR,DQ genotypes. RESEARCH DESIGN AND METHODS Since 1993, the Diabetes Autoimmunity Study in the Yo...

Type 1A diabetes (T1D) is an autoimmune disorder the risk of which is increased by specific HLA DR/DQ alleles [e.g., DRB1*03-DQB1*0201 (DR3) or DRB1*04-DQB1*0302 (DR4)]. The genotype associated with the highest risk for T1D is the DR3/4-DQ8 (DQ8 is DQA1*0301, DQB1*0302) heterozygous genotype. We determined HLA-DR and -DQ genotypes at birth and analyzed DR3/4-DQ8 siblings of patients with T1D fo...

The frequency of the HLA-DR4-DQ4 haplotype (DRB1(*)0405-DQA1(*)0302-DQB1(*)0401) is significantly increased in Japanese patients with rheumatoid arthritis (RA) and DRB1(*)0405-binding peptide motifs were identified in our previous studies. To clarify the DQ4-binding peptide motifs, the primary structure of DQ4-binding peptides was determined by affinity-based selection of a phage random peptide...

Abstract Introduction As of late 2019, a new viral variant that causes respiratory infection has concerned humanity: SARS-CoV-2. The following year, the COVID-19 pandemic was declared by World Health Organization. spread virus across country borders led to implementation security measures contain infections. confinement during helped minimize infections, but it affected people's mental health, ...

OBJECTIVE To evaluate the clinical usefulness of genomic HLA typing during the first five years of established rheumatoid arthritis (RA). METHODS The HLA-DRB and -DQB alleles were determined by restriction length polymorphisms and polymerase chain reaction amplification with sequence specific primers in 99 Swedish patients with RA. Clinical features after two and five years disease duration w...

OBJECTIVE Ketosis-prone diabetes (KPD) comprises four subgroups based on the presence or absence of beta-cell autoantibodies (A+ or A-) and beta-cell functional reserve (beta+ or beta-). Genetic factors could contribute to their distinctive phenotypes. Our aim was to specify the role of HLA class II alleles associated with susceptibility or resistance to autoimmune type 1 diabetes in determinin...

The objective of this project was to develop and apply fundamentally based experimental andcomputational methodologies that can lead to the design of improved supercritical fuel/catalyst/heatexchanger systems for cooling hypersonic vehicles. This project was a multi-team effort involvingresearchers at the University of Delaware, United Technologies Research Center, and the Colorado<...

Among all of the genetic factors associated with multiple sclerosis (MS) susceptibility, MHC class II molecules have the strongest association. Although a direct role of DR alleles in MS have been confirmed, it has been difficult to understand the role of DQ alleles in disease pathogenesis due to strong linkage disequilibrium with certain DR alleles. Population studies have indicated that DQ al...

PURPOSE To identify any possible determinants in the development of uveitis in leprosy patients. METHODS Human leukocyte antigen (HLA) class I and II antigen, and HLA class II genotypings were analyzed among Japanese leprosy patients. Ninety-three unrelated Japanese leprosy patients (46 patients with a history of uveitis and 47 patients without uveitis) and 114 healthy control subjects were i...

INTRODUCTION Autoimmune diabetes has different clinical manifestations related to the age at onset. It is divided into several subtypes, including "classical" type 1 diabetes (T1D) and latent autoimmune diabetes in adults (LADA). The LADA is considered a slowly progressing subtype of autoimmune diabetes, although the clinical picture is more similar to type 2 diabetes. MATERIAL AND METHODS Th...