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 ...
A titer is determined by repeating the positive test with serial dilutions until the test yields a negative result. The last dilution which yields a positive result (i.e., fluorescence observed under the microscope) is the titer that is reported.3 Here is an example: Serial Dilutions: 1:10...
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...
17、nAnti-ribPpositiveSLE18510(5.4%)|MCTD210SS550SSc660RA890HD1000Specificity310100%|靶抗原:表达为细胞周期依赖性(S期)三聚体(36kDa),是DNA多聚酶的辅因子并参与DNA修复调控检测:IIFT,Blot临床意义:SLE高特异性(阳性率37%),与肾脏和CNS及血小板减少相关慢性炎症性结缔组织病(CICTD)干燥综合症(SS)系统性...
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 ...
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...
Immunodominant epitope: The epitope on a molecule that induces a dominant, or most intense, immune response. The immunodominant epitope may elicit, for example, the greatest antibody titer during infection or immunization, as measured by, for example, the fraction of reactivity attributable to a cer...
1 Anti-NuclearAntibody(ANA) 1.ScreeningTest A.Referstoauto-antibodiestonuclear componentsofthecell B.Seeninawidevarietyofsystemicautoimmune diseases C.Usefulasdiagnosticmarkersandtomonitor thecourseofautoimmunediseases D.Canbefoundinlowtitersinhealthy ...
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(...
The diagnostic criteria for confirmed human granulocytic anaplasmosis are clinical signs and laboratory findings suggestive of granulocytic anaplasmosis together with (1) detection of morulae within neutrophils combined with a single positive reciprocal antibody titer to A. phagocytophilum of ...