Purpose Indirect immunofluorescence (IIF) in Hep-2 cells is the standard screening test for antinuclear antibodies (ANA). Advances in this methodology have brought up a considerable increase in sensitivity and consequently a decrease in its specificity. This has resulted in an increasing number of positive tests in apparently healthy subjects. In particular, autoantibodies associated with the d...

OBJECTIVE To characterize antinuclear antibody (ANA) prevalence according to distinct assay methodologies in a pediatric cohort from Mexico City, and to further examine associations with age and sex. METHODS Serum ANA were measured by indirect immunofluorescence assay (IFA) and multiplex immunoassay in 114 children aged 9-17 years. IFA was considered positive at a cutoff titer of ≥1:80. Agree...

BACKGROUND Flow-based, multiplex bead arrays (MBA) have been developed for a variety of applications including the detection of antibodies to extractable nuclear antigens (ENA). It offers a rapid and sensitive method to assess multiple analyses in a single tube/well. PURPOSE To evaluate the Athena Multi-Lyte ANA Test System utilizes Luminex Corporation's MBA technology for the detection of an...

The incidence of autoimmune diseases is increasing. Antinuclear antibody (ANA) testing a critical tool for their diagnosis. However, ANA prevalence in healthy persons has increased over the last decades, especially among young people. health occurs low concentrations, with up to 50% some populations, which demands cutoff revision. This review deals origin and probable physiological or compensat...

This study of children with chronic arthritis confirms that patients at greatest risk for chronic iridocyclitis have a young age of onset and positive antinuclear antibodies (ANA). Children who are ANA negative have a low risk of iridocyclitis. When it occurs it is at a significantly older age. No child developing juvenile chronic arthritis over 9, even with positive ANA, had chronic iritis. Th...

In a comparative study of antinuclear antibodies (ANA) and immune complexes in the serum of 43 patients with systemic sclerosis (SS) ANA were detected by indirect immunofluorescence on Hep 2 cells and/or double immunodiffusion in 90% of patients, while immune complex assays were positive in 32% of patients. The immune complex assays were positive only in sera containing antibodies to Scl 70, n-...

AIM In our study, we investigated the levels of glutamic acid decarboxylase antibody (anti-GAD), islet cell antibody (ICA), thyroperoxidase antibody (anti-TPO), thyroglobulin antibody (anti-TG), antinuclear antibodies (FANA), antibodies to double-stranded DNA (anti-ds DNA), antibody to Sjögren syndrome A antigen (anti-SSA), antibody to Sjögren syndrome B antigen (anti-SSB), Smith antibody (anti...

OBJECTIVE To determine the impact of implant integrity on clinical symptoms and antibody status in women with silicone breast implants (SBIs). METHODS Ninety consecutive women were examined by means of magnetic resonance imaging (MRI) to assess the integrity of their silicone breast implants. The presence of silicone in the liver was estimated by (1)H localized stimulated echo acquisition mod...

OBJECTIVE To investigate patients with cancer for the frequency of IgG and IgM aCL and ANA in comparison to a group of age- and sex-matched controls. METHODS Serum levels of IgG and IgM anticardiolipin antibodies (aCL), antinuclear antibodies (ANA) and anticytoplasmic antibodies were evaluated in 145 cancer patients, including 20 patients with thromboembolic disease (TED) and compared with ag...

background: antinuclear antibodies (anas) in women with recurrent miscarriage have been reported. the presence of moderate to high titers of these antibodies represents an autoimmune condition that can endanger the health of the fetus in pregnant women. objective: in this study, we evaluated the prevalence of anas in iranian women with a history of two or more unexplained abortion. materials an...