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Chlamydia pneumoniae accompanied by inflammation is associated with the progression of atherosclerosis in CAPD patients: a prospective study for 3 years

Authors
 Dong Ki Kim  ;  Hyun Jin Kim  ;  Seung Hyeok Han  ;  Jung Eun Lee  ;  Sung Jin Moon  ;  Beom Seok Kim  ;  Shin-Wook Kang  ;  Kyu Hun Choi  ;  Ho Yung Lee  ;  Dae-Suk Han 
Citation
 NEPHROLOGY DIALYSIS TRANSPLANTATION, Vol.23(3) : 1011-1018, 2008 
Journal Title
NEPHROLOGY DIALYSIS TRANSPLANTATION
ISSN
 0931-0509 
Issue Date
2008
MeSH
Adult ; Aged ; Antibodies, Bacterial/blood ; Atherosclerosis/microbiology* ; Atherosclerosis/pathology ; Carotid Artery, Common/diagnostic imaging ; Carotid Artery, Common/pathology ; Chlamydophila Infections/complications* ; Chlamydophila Infections/immunology ; Chlamydophila Infections/pathology ; Chlamydophila pneumoniae*/immunology ; Disease Progression ; Female ; Humans ; Immunoglobulin A/blood ; Inflammation/blood ; Inflammation/complications* ; Inflammation/pathology ; Interleukin-6/blood ; Kidney Failure, Chronic/therapy* ; Longitudinal Studies ; Male ; Middle Aged ; Multivariate Analysis ; Peritoneal Dialysis, Continuous Ambulatory* ; Prospective Studies ; Risk Factors ; Tunica Intima/diagnostic imaging ; Tunica Intima/pathology ; Tunica Media/diagnostic imaging ; Tunica Media/pathology ; Ultrasonography'
Keywords
atherosclerosis ; Chlamydia pneumoniae ; inflammation ; intima-media thickness
Abstract
BACKGROUND: The causes of accelerated atherosclerosis in end-stage renal disease (ESRD) patients are unknown, although recent studies have suggested that Chlamydia pneumoniae (Cp) infection and inflammation might be contributing factors. We aimed to evaluate the association of carotid atherosclerosis progression with Cp infection and inflammation in patients undergoing peritoneal dialysis (PD).

METHODS: This is a prospective observational study. A total of 52 non-diabetic prevalent PD patients were included. The intima-media thickness of a common carotid artery (CCA-IMT) was measured at baseline and after 36 months by B-mode ultrasonography. Serum antibodies to Cp and inflammatory markers were obtained at the time of initial measurement of the CCA-IMT.

RESULTS: CCA-IMT progressors (deltaCCA-IMT > or = 0.015 mm/year) had a higher prevalence of seropositivity for Cp IgA antibody, a higher level of Cp IgA antibodies indices, log IL-(interleukin-)6, and intercellular adhesion molecule-1 (ICAM-1) compared to the non-progressors (deltaCCA-IMT < 0.015 mm/year). On multivariate analysis, Cp IgA index and log IL-6 were independent risk a factors for CCA-IMT progression. Also, Cp IgA index had independent positive correlation with the magnitude of annual deltaCCA-IMT. Cp IgA antibody seropositive patients showed significantly higher mean annual deltaCCA-IMT than seronegative patients. Moreover, patients with both positive Cp IgA antibodies and elevated IL-6 above the median level showed higher deltaCCA-IMT than those with either factor alone.

CONCLUSIONS: Our data showed that Cp and inflammation were significant risk factors of CCA-IMT change in PD patients. This study strengthens evidence that Cp is involved in the pathogenesis of atherosclerosis and also suggests that the effect of Cp infection under high inflammatory status might be a risk factor for progression of atherosclerosis.
Files in This Item:
T200800118.pdf Download
DOI
10.1093/ndt/gfm696
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Shin Wook(강신욱) ORCID logo https://orcid.org/0000-0002-5677-4756
Kim, Dong Ki(김동기)
Kim, Beom Seok(김범석) ORCID logo https://orcid.org/0000-0002-5732-2583
Kim, Hyun Jin(김현진)
Moon, Sung Jin(문성진)
Lee, Jung Eun(이정은) ORCID logo https://orcid.org/0000-0003-0917-2872
Lee, Ho Yung(이호영)
Choi, Kyu Hun(최규헌) ORCID logo https://orcid.org/0000-0003-0095-9011
Han, Dae Suk(한대석)
Han, Seung Hyeok(한승혁) ORCID logo https://orcid.org/0000-0001-7923-5635
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106245
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