نتایج جستجو برای: enzyme linked immunospot assay
تعداد نتایج: 620627 فیلتر نتایج به سال:
BACKGROUND We report the first-in-human safety and immunogenicity assessment of a prototype hexon chimeric adenovirus (Ad) serotype 5 (Ad5) vector containing the hexon hypervariable regions of Ad serotype 48 (Ad48) and expressing human immunodeficiency virus (HIV) type 1 EnvA. METHODS Forty-eight Ad5 and Ad48 seronegative, HIV-uninfected subjects were enrolled in a randomized, double-blind, p...
The diagnosis of trypanosomosis in animals with low parasitaemia is hampered by low diagnostic sensitivity of traditional detection methods. An immunodiagnostic method based on a direct sandwich enzyme-linked immunosorbent assay (ELISA), using monoclonal antibodies, has been examined in a number of African laboratories for its suitability for monitoring tsetse control and eradication programmes...
The purified protein derivative (PPD) skin test for Mycobacterium tuberculosis infection lacks specificity. We assessed 2 more specific M. tuberculosis antigens (ESAT-6 and CFP-10) by enzyme-linked immunospot assay (ELISPOT) compared with PPD by ELISPOT and skin test in The Gambia. Of 735 household contacts of 130 sputum smear-positive tuberculosis cases, 476 (65%) tested positive by PPD ELISPO...
Anti-neutrophil cytoplasm antibodies (ANCA) are useful diagnostic markers in a range of small vessel vasculitides. While non-specific ANCA have been reported in association with a variety of autoimmune, haematological and infectious conditions, the combination of a cytoplasmic staining pattern on indirect immunofluorescence (IIF) of human neutrophils, with antibodies specific for proteinase 3 (...
The purpose of this study was to determine whether individual milk samples can replace serum samples for the detection of bovine herpesvirus 1 (BHV1) glycoprotein E (gE)-specific antibodies. Serum and milk samples were collected at the same time from cattle in BHV1-free herds, cattle in unvaccinated herds, and cattle in herds that were vaccinated twice with a BHV1 marker vaccine. The samples we...
Basal cell carcinomas (BCCs) are driven by abnormal hedgehog signaling and highly overexpress several hedgehog target genes. We report here our use of one of these target genes, hedgehog-interacting protein (Hip1), as a tumor-associated antigen for immunoprevention of BCCs in Ptch1+/- mice treated with ionizing radiation. Hip1 mRNA is expressed in adult mouse tissues at levels considerably lowe...
We recently set up a gamma interferon (IFN-gamma) enzyme-linked immunospot assay (ELISPOT), using selected early secreted antigenic target 6 (ESAT-6) peptides, that appears specific for active tuberculosis (A-TB). However, ELISPOT is difficult to automate. Thus, the objective of this study was to determine if the same selected peptides may be used in a technique more suitable for routine work i...
The pattern of epidemic meningococcal disease in the African meningitis belt may be influenced by the background level of population immunity but this has been measured infrequently. A standardised enzyme-linked immunosorbent assay (ELISA) for measuring meningococcal serogroup A IgG antibodies was established at five centres within the meningitis belt. Antibody concentrations were then measured...
A rabbit homologous polyclonal antiserum to the 104-kilodalton hemolysin of Actinobacillus pleuropneumoniae serotype 1 strain CM-5 was specifically produced and used in an antigen capture enzyme-linked immunosorbent assay (ELISA) to detect swine serum antibodies to this potentially important virulence factor. Sera from pigs experimentally infected with the most common disease-producing serotype...
there are many studies related to the production of a elisa kit for diagnosing virus infections. however, production of most kits depends on purification of whole virus particles, which involves the use of costly equipment and reagents. the purpose of this study was to check out if the anti-cp42 antibodies could be used as a diagnostic assay for detection of grapevine fanleaf virus (gflv). in t...
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