Standing out in the field of IgY Immunotechnology

  • Home
    Home A full collection of all the Research Archive entries.
  • Years
    Years Sort entries by year.
  • Tags
    Tags Displays a list of tags that have been used in the blog.
  • Archives
    Archives Contains a list of research entries that were created previously.

Evaluation of an IgY-Based Immunomagnetic Enzyme-Linked Immunosorbent Assay System for Detection of Circulating Schistosoma japonicum Antigen in Serum Samples from Patients in China.

Posted by on in 2011
  • Font size: Larger Smaller
  • Hits: 1437
  • Print

Department of Parasitology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Department of Parasitology, Anhui Medical University, Hefei, People's Republic of China; Key Laboratory of Antibody Technology of the Ministry of Health, Nanjing Medical University, Nanjing, People's Republic of China; Institute of Schistosomiasis Control, Wuhan Center of Disease Control, Wuhan, People's Republic of China.

Abstract

Abstract. We have developed a novel egg yolk antibody (IgY)-coated magnetic beads antigen-capture immunoassay for detection of a circulating antigen of Schistosoma japonicum in serum samples of patients in schistosomiasis-endemic areas of China. This IgY-based immunomagnetic bead enzyme-linked immunosorbent assay (IgY-IMB-ELISA) uses polyclonal IgY-coated magnetic beads as a capture antibody, and a monoclonal IgG as a detection antibody. The sensitivity of the magnetic immunoassay was 100% (40 of 40) in cases of acute infection and 91.5% (107 of 117) in chronic cases of schistosomiasis, and no positive reaction was found in 0 of 49 healthy persons. Cross-reactivity was 3.3% (1 of 33) with clonorchiasis and 0% (0 of 20) with paragonimiasis. There was a significant correlation between ELISA absorbance value and egg count (eggs per gram feces) and a correlation coefficient of 0.88 in a small sample of 14 patients. The results demonstrated that the IgY-IMB-ELISA is a sensitive and specific assay for detection of human schistosomiasis japonica.

PMID:
22144443
[PubMed - in process]
PMCID: PMC3225151
[Available on 2012/12/1]
Last modified on