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Chinese Journal of Virology ; (6): 33-39, 2010.
Artigo em Chinês | WPRIM | ID: wpr-297921

RESUMO

The primers and probes for the Real-time RT-PCR were designed based on the multiple sequence (swine and humans HEV strains) alignments of the ORF3 region of genotype 4 HEV. A rapid, sensitive and stable TaqMan Real-time RT-PCR assay was established, and its specificity and sensitivity were assessed, and comparison of the Real-time RT-PCR with conventional and nested RT-PCR was performed. The results found that the crossing points showed linearly proportional to the logarithm of the input copy number. The correlation coefficient (R2) and the slope value of the standard curves with plasmid DNA were 0.994 and -3.312, respectively. The efficiency (E) of the PCR was 100%. Coefficients of variation values of the different diluted plasmid DNA were low in the same or different repeated experimental group. In addition, the assay was able to correctly detect genotype 4 HEV RNA from swine fecal samples. The sensitivity of established assay was 100-fold higher than that of conventional RT-PCR and 10-fold higher than nested RT-PCR.


Assuntos
Animais , Humanos , Primers do DNA , Genética , Reservatórios de Doenças , Virologia , Fezes , Virologia , Fluorescência , Genótipo , Hepatite E , Virologia , Vírus da Hepatite E , Classificação , Genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Métodos , Sensibilidade e Especificidade , Suínos , Virologia
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