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  • Title: Early detection of Schistosoma mansoni infection by touchdown PCR in a mouse model.
    Author: Suzuki T, Osada Y, Kumagai T, Hamada A, Okuzawa E, Kanazawa T.
    Journal: Parasitol Int; 2006 Sep; 55(3):213-8. PubMed ID: 16822708.
    Abstract:
    A detection assay for Schistosoma mansoni DNA in mouse serum samples based on touchdown PCR was developed and evaluated. The serum samples could be assayed directly without the need to extract DNA. No cross reactions between S. mansoni and related species inducing human schistosomiasis were observed. After the infection, mouse sera and feces were collected for 8 weeks. Anti-worm antigen IgG and anti-soluble egg antigen IgG were detected in the sera at 6 weeks post-infection by ELISA. The parasite's eggs were detected in the feces at 8 weeks. In contrast, S. mansoni DNA was detected in the sera at 2 weeks post-infection. These data suggest that touchdown PCR is a potential tool for the early diagnosis of S. mansoni infection.
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