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  • Title: [Detection of human parvovirus B19 nonstructural protein DNA by nested- polymerase chain reaction in pregnant women].
    Author: Qiao FY, Huang YM, Li ZQ, Liu HY, Tang HJ.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2004 Feb; 39(2):86-90. PubMed ID: 15059582.
    Abstract:
    OBJECTIVE: To explore the sensitivity and specificity of the new nested-polymerase chain reaction (nested-PCR) assay in the detection of human parvovirus B19 (HPV B19) nonstructural protein DNA and the applicability of this technique in detecting the gravida infected with parvovirus B19. METHODS: Evaluating the new nested-polymerase chain reaction assay by routine process, and compared with the general nested-PCR in detecting structural protein DNA. Then, the two techniques were used to detect human parvovirus B19 structural protein and nonstructural protein DNA in gravida serum and pregnant tissue of 30 cases. RESULTS: The sensitivity of the new method was 0.005 fg which was similar to the general nested-polymerase chain reaction assay, and the detection results of other viruses and human genome DNA were all negative. The positive rates of structural protein DNA and nonstructural protein DNA in gravida sera were 26.7% and 33.3%, respectively. And the difference was non significant in statistics. At the same time, both of these two positive rates in placenta and villus were 26.7%. CONCLUSIONS: The new nested-polymerase chain reaction assay was a sensitive, specific and convenient method in detecting human parvovirus B19 infection, and the detection of nonstructural protein DNA paves the way for the following study on the disease mechanisms of B19.
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