Abstract:
BACKGROUND:Recent findings suggest a causative role of infections in the pathogenesis of atherosclerosis. In hypothesizing an association between infectious agents and the development of atherosclerosis, we would expect a correlation to the extent of atherosclerosis. Moreover, this effect could be multiplied by the number of pathogens to which an individual had been exposed. METHODS AND RESULTS:In 572 patients, IgG or IgA antibodies to herpes simplex virus 1 and 2, cytomegalovirus, Epstein-Barr virus, Hemophilus influenzae, Chlamydia pneumoniae, Mycoplasma pneumoniae, and Helicobacter pylori were measured. The extent of atherosclerosis was determined by coronary angiography, carotid duplex sonography, and evaluation of the ankle-arm index. Elevated IgA antibodies against C pneumoniae (P<0.04) and IgG antibodies against H pylori (P<0.02), cytomegalovirus (P<0.05), and herpes simplex virus 2 (P<0.01) were associated with advanced atherosclerosis (> or =2 vascular regions), adjusted for age, sex, cardiovascular risk factors, and highly sensitive C-reactive protein. Infectious burden divided into 0 to 3, 4 to 5, and 6 to 8 seropositivities was significantly associated with advanced atherosclerosis, with an odds ratio (95% CI) of 1.8 (1.2 to 2.6) for 4 to 5 (P<0.01) and 2.5 (1.2 to 5.1) for 6 to 8 seropositivities (P<0.02) (adjusted). After a mean follow-up of 3.2 years, cardiovascular mortality rate was 7.0% in patients with advanced atherosclerosis and seropositive for 0 to 3 pathogens compared with 20.0% in those seropositive for 6 to 8 pathogens. CONCLUSIONS:Our results support the hypothesis that infectious agents are involved in the development of atherosclerosis. We showed a significant association between infectious burden and the extent of atherosclerosis. Moreover, the risk for future death was increased by the number of infectious pathogens, especially in patients with advanced atherosclerosis.
journal_name
Circulationjournal_title
Circulationauthors
Espinola-Klein C,Rupprecht HJ,Blankenberg S,Bickel C,Kopp H,Rippin G,Victor A,Hafner G,Schlumberger W,Meyer J,AtheroGene Investigators.doi
10.1161/hc0102.101362subject
Has Abstractpub_date
2002-01-01 00:00:00pages
15-21issue
1eissn
0009-7322issn
1524-4539journal_volume
105pub_type
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