Development and clinical evaluation of a polymerase chain reaction test for detection of Chlamydia trachomatis.
AUTOR(ES)
Ossewaarde, J M
RESUMO
A polymerase chain reaction (PCR) for the detection of Chlamydia trachomatis was developed and evaluated. Two primer-probe sets were designed; one detected a specific sequence of the plasmid, and the other detected the gene encoding the major outer membrane protein. Both sets reacted species specifically and amplified sequences from all human serovars. A simple protocol was used for sample pretreatment. The PCR was optimized by addition of tetramethylammonium chloride and bovine serum albumin. The results of the PCR with the plasmid primer-probe set were compared with those of culture and the Chlamydiazyme and Gen-Probe PACE 2 tests for urogenital specimens from 220 patients. The rates of prevalence of infection with C. trachomatis were 22.7, 16.4, 15.0, and 14.5%, respectively. The sensitivities of the Chlamydiazyme and Gen-Probe PACE 2 assays compared with culture were 66.7 and 61.1%, respectively, and their sensitivities compared with PCR were 60.0 and 60.0%, respectively. The sensitivity of culture compared with PCR was 70.0%. Forty-eight of the 50 specimens positive by PCR with the plasmid primer-probe set could be confirmed by PCR with the major outer membrane protein primer-probe set or culture. It is concluded that the PCR is the most sensitive technique for laboratory detection of C. trachomatis.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=265455Documentos Relacionados
- Use of polymerase chain reaction for detection of Chlamydia trachomatis.
- Use of polymerase chain reaction for detection of Chlamydia trachomatis.
- Evaluation of the sensitivity and specificity of a ligase chain reaction test kit for the detection of Chlamydia trachomatis.
- Clinical evaluation of a new polymerase chain reaction assay for detection of Chlamydia trachomatis in endocervical specimens.
- Evaluation of a microdot immunofluorescent antigen detection test for Chlamydia trachomatis.