What question did this study set out to answer?

To develop and evaluate a highly sensitive and specific PCR-based assay targeting the 47-kDa membrane immunogen gene for the detection of Treponema pallidum.

January 1, 1991Journal of Clinical MicrobiologyOpen Access

Sensitive detection of Treponema pallidum by using the polymerase chain reaction

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Authors

JBJennifer M. BurstainUniversity of Washington EGE. GrimprelSorbonne Université SLSheila A. LukehartUniversity of Washington

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Implication

Diagnostic assay evaluation demonstrates sensitive detection of Treponema pallidum DNA in clinical fluids and tissues, indicating potential utility for syphilis diagnosis and pathogenesis research.

Key Points

To develop and evaluate a highly sensitive and specific PCR-based assay targeting the 47-kDa membrane immunogen gene for the detection of Treponema pallidum.
Amplified a 658-bp segment of the gene encoding the 47-kDa membrane immunogen of T. pallidum, followed by confirmation via DNA-DNA hybridization with a 496-bp internal probe.
Tested assay analytical sensitivity against purified bacterial DNA and quantified treponeme suspensions.
Evaluated diagnostic specificity using human DNA, related spirochetes (including Borrelia burgdorferi), various pathogens, and clinical specimens (serum, cerebrospinal fluid, amniotic fluid, and paraffin-embedded tissue).
The PCR assay detected approximately 0.01 pg of purified T. pallidum DNA, reliably identifying suspensions containing 10 or more treponemes as well as select single-organism suspensions.
Specific amplification was achieved for T. pallidum subsp. pallidum and T. pallidum subsp. pertenue, with no cross-reactivity observed against human DNA or other examined pathogens.
T. pallidum DNA was successfully detected in patient serum, cerebrospinal fluid, amniotic fluid, and paraffin-embedded tissues, while yielding negative results across all nonsyphilitic control samples.

Cite This Study

Burstain et al. (1991) studied this question.

synapsesocial.com/papers/6a6ef52f6c240de38cdb6015 https://doi.org/10.1128/jcm.29.1.62-69.1991

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Implication

Diagnostic assay evaluation demonstrates sensitive detection of Treponema pallidum DNA in clinical fluids and tissues, indicating potential utility for syphilis diagnosis and pathogenesis research.

Sensitive detection of Treponema pallidum by using the polymerase chain reaction

Discussion

Member takes

Implication

Key Points

Cite This Study

Sensitive detection of Treponema pallidum by using the polymerase chain reaction

Discussion

Member takes

Implication

Key Points

Cite This Study

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