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  • Title: Low prevalence of Chlamydia pneumoniae in atherectomy specimens from patients with coronary heart disease.
    Author: Jantos CA, Nesseler A, Waas W, Baumgärtner W, Tillmanns H, Haberbosch W.
    Journal: Clin Infect Dis; 1999 May; 28(5):988-92. PubMed ID: 10452622.
    Abstract:
    Coronary atherectomy specimens from 50 patients with coronary heart disease were examined for the presence of Chlamydia pneumoniae by two different methods of polymerase chain reaction (PCR) and by in situ hybridization. C. pneumoniae DNA was detected by PCR in atherosclerotic plaques of four patients (8%). Two patients' coronary atheromas were positive, both by a single-step 16S rRNA-based PCR and by an omp1-based nested PCR. The other two patients' specimens were positive only by the nested PCR. In contrast, C. pneumoniae was not detected by in situ hybridization in any of the cardiovascular tissues tested. Of three patients with evidence of C. pneumoniae in coronary atheromas, two had an antibody titer of 1:32 and the third had no specific antibodies detectable. Results of this study demonstrate a low prevalence of C. pneumoniae DNA in coronary atheromas. These findings do not support the hypothesis that the organism plays a major role in atherogenesis.
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