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Chlamydia pneumoniae in patients undergoing surgery for thoracic aortic disease
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Friman, infektion)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Genetics and Pathology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Friman, infektion)
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2002 (English)In: Scandinavian Cardiovascular Journal, ISSN 1401-7431, E-ISSN 1651-2006, Vol. 36, no 6, 329-335 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: To investigate if Chlamydia pneumoniae is present in the wall of the thoracic aorta in patients operated on for aneurysm or aortic dissection.

DESIGN: Consecutive patients undergoing surgery for thoracic aortic aneurysm (TAA, 32 patients) and for aortic dissection (6 patients) were included in this prospective study. Tissue samples from the aorta were analysed for the presence of C. pneumoniae by polymerase chain reaction (PCR), histopathology, immunohistochemistry and in one aortic tissue sample C. pneumoniae was verified by electron microscopy and immunogold labelling technique. Cultured Hep 2 cells infected with C. pneumoniae were used as a positive control for electron microscopy. Sera for microimmunofluorescence were obtained in 36/38 and throat swabs for C. pneumoniae PCR in 17/38 patients.

RESULTS: Chlamydia pneumoniae was detected by PCR in 4 of 32 TAA tissue samples (12%) and in 0 of 6 patients operated on for aortic dissection. Chlamydia pneumoniae inclusion bodies in one of the PCR positive tissue samples were verified by electron microscopy. IgG antibodies to C. pneumoniae were present in 17/31 (55%) and IgA in 15/31 (48%) of the TAA patients and in none of five tested patients with dissection. None of the tested throat swabs was positive.

CONCLUSION: In this study we report the presence of C. pneumoniae by PCR and electron microscopy in the wall of TAA. A high prevalence of serum IgA antibodies to C. pneumoniae was found in TAA patients. In contrast no signs of C. pneumoniae were detected in patients with thoracic aortic dissection.

Place, publisher, year, edition, pages
2002. Vol. 36, no 6, 329-335 p.
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-64409DOI: 10.1080/140174302762659030PubMedID: 12626198OAI: oai:DiVA.org:uu-64409DiVA: diva2:92320
Available from: 2007-04-20 Created: 2007-04-20 Last updated: 2017-11-30Bibliographically approved

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Lukinius, AgnetaFriman, GöranThelin, Stefan

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