Iga deficiency - Open Access .click

Results 81 to 90 of about 542,367 (279)

Autoantibodies to Joint‐Related Peptides Are Associated With Onset of Rheumatoid Arthritis in Presymptomatic Seronegative Individuals

Arthritis &Rheumatology, EarlyView.
Objective To identify autoantibodies in presymptomatic individuals that associate with the onset of rheumatoid arthritis (RA) and to distinguish early RA from osteoarthritis (OA), particularly in individuals lacking classic RA serologic markers. Methods We analyzed serum and plasma from three cohorts: presymptomatic individuals who later developed RA ...
Outi Sareila +12 more
wiley +1 more source

Systemic immunization against IgA in immunoglobulin deficiency

, 1993
SUMMARY The presence of scrum IgM and IgG antibodies against IgA is common among individuals with IgA deficiency. The route of immunization is still unknown, but it is possible that immunization occurs through the gut. We analysed anti-IgA
C I E SMITH +3 more
core +1 more source

Higher Complement C4 Gene Copy Number Constitutes a Shared Genetic Risk Factor for Giant Cell Arteritis and IgA Vasculitis

Arthritis &Rheumatology, EarlyView.
Objective Low copy number (CN) of complement C4 isoforms and high CN of retroviral HERV‐K elements are known risk factors for many immune‐mediated inflammatory diseases (IMIDs), often showing sex‐biased effects. Here, we assessed whether CN variation within the C4 gene contributes to giant cell arteritis (GCA) and IgA vasculitis (IgAV), two complex ...
Laura Martínez‐Gutiérrez +295 more
wiley +1 more source

Selective IgA deficiency and ankylosing spondylitis

, 1997
A man with an ankylosing spondylitis (AS) and selective IgA deficiency is described. There have been several reports in the literature indicating coexistence of AS with selective IgA deficiency.
Sebik, F. +6 more
core +1 more source

Differences in SARS‐CoV‐2 Antigen Persistence in Individuals With Systemic Autoimmune Rheumatic Diseases Compared to the General Population: A RECOVER‐Adult Cohort Study

Arthritis &Rheumatology, EarlyView.
Objective Individuals with systemic autoimmune rheumatic diseases (SARDs) are at risk for worse acute and post–acute COVID‐19 outcomes, though whether individuals with SARDs have longer persistence of viral antigens after COVID‐19 has not been studied.
Naomi J. Patel +18 more
wiley +1 more source

The Role of IgM Anti‐acetylated Protein Antibodies and B Cells in the Origin of Antimodified Protein Autoimmunity in Rheumatoid Arthritis

Arthritis &Rheumatology, EarlyView.
Objective Rheumatoid arthritis (RA) is characterized by anti‐modified protein antibodies (AMPAs), including anti‐citrullinated protein antibodies (ACPA), anti‐carbamylated protein antibodies (anti‐CarP), and anti‐acetylated protein antibodies (AAPA). In contrast to other AMPAs, AAPA IgM is found in healthy individuals, raising questions about its role ...
Aegli Athanasiadou +10 more
wiley +1 more source

Increased Plasma Microbial tDR‐1 in At‐Risk Individuals Is Associated With Decreased Conversion to Clinical Rheumatoid Arthritis and Reduces an In Vitro Macrophage Type 1 Interferon Response

Arthritis &Rheumatology, EarlyView.
Objective Microbial small RNAs can regulate human genes. Higher plasma concentrations of microbial transfer RNA (tRNA)‐derived RNA‐1 (tDR‐1) were previously associated with lower rheumatoid arthritis (RA) disease activity. This study examined whether tDR‐1 concentrations differ in anticyclic citrullinated peptide‐3 positive (CCP3+) at‐risk individuals (
Anastasiia Phothisane +11 more
wiley +1 more source

Various Expression Patterns of α1 and α2 Genes in IgA Deficiency

Allergology International, 2009
Background: IgA deficiency (IgAD) is the most common immunodeficiency, however the pathogenesis in most cases of IgAD is unknown. There are 2 subclasses of IgA, IgA1 and IgA2, and its heavy chains are encoded by 2 different genes, the α1 and α2 genes. To
Hiroko Suzuki +8 more
doaj +1 more source

CASTOR1 Regulates Humoral Immune Responses and Contributes to the Pathogenesis of Systemic Lupus Erythematosus

Arthritis &Rheumatology, EarlyView.
Objective CASTOR1 senses arginine and regulates mammalian target of rapamycin complex 1 (mTORC1), a central metabolic signaling molecule. This study aimed to elucidate the roles of CASTOR1 in humoral immune responses. Methods We analyzed human B cell transcriptomes from healthy controls and patients with systemic lupus erythematosus (SLE) via ...
Takeshi Kusuda +5 more
wiley +1 more source

Single‐cell RNA sequencing of peripheral blood defines two immunological subtypes of Sjögren's disease distinguished by anti‐SSA antibodies and aberrant B cell populations

Arthritis &Rheumatology, Accepted Article.
Objectives Sjögren's disease (SjD) is a heterogeneous autoimmune disorder characterized by substantial clinical and molecular diversity. This heterogeneity raises key questions regarding the existence of distinct pathogenic mechanisms underlying disease subtypes.
Geoffrey Urbanski +15 more
wiley +1 more source

humans
immunoglobulin a
3. good health

female
adult
male

child
dysgammaglobulinemia
child, preschool