Forty-nine percent of the ANA tests were positive at a titer of 1:80 or greater; slightly more women (51%) had a positive ANA (鈮 1:80) than did men (43%). 54.5% of the positive ANA in women were 1:320 or greater vs. 41.6% in men (p<0.0001). In 118 patients with a ...
Antinuclear antibody indirect immunofluorescence (ANA IF) positive using cytobead ANA with a homogenous pattern and cytoplasmic speckled titer 1/80. Confirmation beads showed positive of dsDNA only. ANA profile showed positive antinucleosome, antihistone, and AMA-M2, and also increased anti...
A positive ANA test is reported as a titer, indicating the concentration of antibodies in the blood, expressed as a ratio (for example, 1:40, 1:80, 1:160). Generally, a titer of 1:40 or higher is considered positive, but the exact cutoff to call a test positive may vary among labo...
First, we have analyzed agreement (kappa index) between qualitative (positive or negative) results obtained with both assays using various cut-off. Then, IFA-ANA titers were considered. Box plots show that when IFA titer increases, COBAS-ANA value does Discussion We evaluated -precision, response...
low.The false-positive rate for any rheumatic disease was 72%in patients 65 years old or younger, and 90%in patients older than 65 years.Even ANAs that were positive at a titer of 1:320 or greater were more likely to be falsely positive (55%) than indicative of any rheumatic disease(...
METHODS:We studied 68 patients with RPL and 60 healthy controls from September 2005 to May 2012. All subjects were tested for ANA by immunofluorescence testing, and a titer of 1: 80 and above was considered positive. We compared the pregnancy outcome between the ANA positive and ANA negative ...
(1) detection of morulae withinneutrophilscombined with a single positive reciprocal antibody titer toA. phagocytophilumof at least 80; (2) a fourfold increase or decrease in the antibodytiter within 4 weeks; (3) a positive PCR test result using specificA. phagocytophilumprimers; o...
HBcAb and HBeAg.The positive rate of ANA was compared in HBV activity group with non-active group,and compared the positive rate of such HBV inspective items in ANA positive group with the ANA negative group,conducted the correlation analysis of ANA andHBV inspective items,then compare the ANA...
(Richet). After adult emergence,Wolbachiainfection status was assessed bywspand16S rRNAbased PCR assays using the specific primers described above. DNA extracted from individuals of the Af-Cast-1 and Af-Cast-2A. fraterculusstrains reared without antibiotic treatment was used as a positive control....
When the IgG antibody titer cut-off was set at 1:80 or higher, up to 92% were positive 4 weeks after the onset of symptoms, which lasted for 3 months. Even when the antibody titer cut-off values were set at 1:256 for IgM or 1:320 for IgG, they were positive for 3 months after...