当前位置： SCI文献检索 > JOURNAL OF CLINICAL MICROBIOLOGY期刊下所有文献 > Detection of immune-complex-dissociated nonstructural-1 antigen in patients with acute dengue virus infections.

Detection of immune-complex-dissociated nonstructural-1 antigen in patients with acute dengue virus infections.

Abstract：

:Accurate and timely diagnosis of dengue virus (DEN) infections is essential for the differential diagnosis of patients with febrile illness and hemorrhagic fever. In the present study, the diagnostic value of a newly developed immune-complex dissociated nonstructural-1 (NS-1) antigen dot blot immunoassay (DBI) was compared to a commercially available DEN antigen detection kit (denKEY Blue kit; Globio Co., Beverly, Mass.) and a reverse transcription-PCR (RT-PCR) kit. Serial serum or plasma samples (n = 181) obtained from 55 acute DEN-infected patients were used. In samples obtained from 32 of these 55 DEN-infected patients, viral RNA could be detected by RT-PCR. DEN antigen was detected in only 10 of these 55 patient samples by using the denKEY kit. When these samples were treated with acid to release the immune-complex-associated NS-1 antigen for detection by DBI, 43 of these 55 patients were found to be positive for DEN NS-1 antigen. In nondissociated samples, 22 of these patients were found to be positive by the DBI. In the presence of DEN-specific immunoglobulin M antibodies, both viral RNA and DEN (NS-1) antigen could be detected. The number of positive samples identified by RT-PCR and DBI from these patients with primary DEN infections varied between 28 and 78%. In secondary DEN infections, the number of samples that tested positive by the DBI after immune-complex dissociation (DIS-DBI) was 25% higher than the number of samples that tested positive by RT-PCR and was 35% higher than that determined by nondissociated antigen (NDIS-DBI) detection. We conclude that the denKEY kit has limited diagnostic value for acute DEN infections compared to the RT-PCR and the NDIS-DBI and DIS-DBI methods. We clearly demonstrate that in secondary DEN infections the dissociation of NS-1 immune complexes is essential for early diagnosis of DEN infections.

journal_name

J Clin Microbiol

journal_title

Journal of clinical microbiology

authors

Koraka P,Burghoorn-Maas CP,Falconar A,Setiati TE,Djamiatun K,Groen J,Osterhaus AD

doi

10.1128/jcm.41.9.4154-4159.2003

subject

Has Abstract

pub_date

2003-09-01 00:00:00

pages

4154-9

issue

eissn

0095-1137

issn

1098-660X

journal_volume

pub_type

杂志文章

在线工具

Detection of immune-complex-dissociated nonstructural-1 antigen in patients with acute dengue virus infections.