2002
DOI: 10.1016/s0001-706x(01)00196-6
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Follow-up of experimental chronic Chagas' disease in dogs: use of polymerase chain reaction (PCR) compared with parasitological and serological methods

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Cited by 47 publications
(46 citation statements)
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References 31 publications
(49 reference statements)
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“…These results, together with those run with DNA from Leishmania amazonensis, L. braziliensis and L. chagasii, corroborated the specificity of our amplification system. Nevertheless, all negative filter paper samples revealed the 144 bp DNA fragment after addition of T. cruzi DNA thus confirming the inexistence of amplification inhibitor factors what was crucial to rule out the presence of inhibitors, that have already been reported by Breniere et al (1995) who used the same boiling procedure of the present study, and Araújo et al (2002) who used a more complex extraction procedure with phenol-chloroform extractions. Dorn et al (1999;2001) have associated amplification inhibition to the type of biological sample, suggesting that digestive tract samples, especially stomach contents are more prone to inhibit PCR.…”
Section: Discussionsupporting
confidence: 87%
“…These results, together with those run with DNA from Leishmania amazonensis, L. braziliensis and L. chagasii, corroborated the specificity of our amplification system. Nevertheless, all negative filter paper samples revealed the 144 bp DNA fragment after addition of T. cruzi DNA thus confirming the inexistence of amplification inhibitor factors what was crucial to rule out the presence of inhibitors, that have already been reported by Breniere et al (1995) who used the same boiling procedure of the present study, and Araújo et al (2002) who used a more complex extraction procedure with phenol-chloroform extractions. Dorn et al (1999;2001) have associated amplification inhibition to the type of biological sample, suggesting that digestive tract samples, especially stomach contents are more prone to inhibit PCR.…”
Section: Discussionsupporting
confidence: 87%
“…The values observed with this technique, in experimental studies with dogs, reached more than 90% using blood or others tissues (ARAÚJO et al, 2002;VELOSO et al, 2008). Veloso et al (2008) obtained the highest levels in identifying parasitized experimentally infected Beagle dogs that were in the acute phase of infection, when the parasitemia levels were high.…”
Section: Resultsmentioning
confidence: 87%
“…In the present study, the statistical analysis confirms the low sensitivity of hemoculture and the high specificity and sensitivity of PCR in T. cruzi detection, thus corroborating the studies by Araújo et al (2002), who found 100% positivity for PCR and only 22% for blood culture for experimentally infected dogs in 2002.…”
Section: Artigosupporting
confidence: 91%