نتایج جستجو برای: eliza avidity
تعداد نتایج: 3917 فیلتر نتایج به سال:
زمینه و هدف: توکسوپلاسماگوندی(toxoplasma gondii) عامل توکسوپلاسموز، تک یاخته ای است درون سلولی اجباری که قدرت آلوده کردن اکثر مهره داران خونگرم را دارد. چنانچه مادری در حین بارداری به عفونت مبتلا شود، ممکن است انگل پس از عبور از جفت لطمات و آسیب های مختلفی را بر جنین وارد کند. هدف از انجام این مطالعه، بررسی مقایسه ای روش های سرولوژیک اندازه گیریigg و igm ضد انگل در مادران باردار، و همچنین آزمای...
Diagnosis of acute hepatitis A virus (HAV) infection is based on the detection of HAV immunoglobulin M (IgM). However, IgM could be detected due to nonspecific polyclonal activation of the immune system. An avidity test for anti-HAV IgG was developed to distinguish acute infection, where low-avidity antibodies are detected, from immune reactivation. The assay was tested on 104 samples, includin...
INTRODUCTION Cross-sectional methods can be used to estimate HIV incidence for surveillance and prevention studies. We evaluated assays and multi-assay algorithms (MAAs) for incidence estimation in subtype C settings. METHODS We analysed samples from individuals with subtype C infection with known duration of infection (2442 samples from 278 adults; 0.1 to 9.9 years after seroconversion). MAA...
Many pneumococcal capsular polysaccharides (PSs) are similar in structure, and a pneumococcal antibody often binds to all of the PSs with a similar structure. Yet, these cross-reactive antibodies may bind to the structurally related pneumococcal capsular PSs with an avidity too low to be effective. If memory B cells producing such weakly cross-reactive antibodies are elicited with pneumococcal ...
In order to identify pathogenic correlates of refractory rheumatoid arthritis (RA), antibodies against anti-cyclic citrullinated protein (ACPAs) were investigated in RA patients in whom the dysregulated immune system had been ablated by high-dose chemotherapy (HDC) and autologous haematopoietic stem cell transplantation (HSCT). Six patients with refractory RA were extensively characterized in t...
An indirect immunofluorescent assay (Euroimmun AG, Luebeck, Germany) was used to investigate the avidity of immunoglobulin G (IgG), IgM, IgA, and total Ig (IgGAM) antibody responses to severe acute respiratory syndrome coronavirus (SARS CoV) infections. Serial serum samples from eight patients collected during the first, third, and ninth months after the onset of infection were evaluated. It wa...
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