<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_1905-7415.1000.522_s_001_w2aab3b7b7b1b6b1aab1c17b1Aa"><h3>Background</h3><p><italic>Chlamydia pneumoniae</italic> infection is associated with coronary and carotid atherosclerosis. The prevalence of chlamydia infection varies from one country to another. Prevalence is related to socioeconomic status and sites of atherosclerosis differ between different ethnicities.</p></sec><sec id="j_1905-7415.1000.522_s_002_w2aab3b7b7b1b6b1aab1c17b2Aa"><h3>Objectives</h3><p>To study the association between chlamydia infections and cervicocerebral atherosclerosis in Thai patients.</p></sec><sec id="j_1905-7415.1000.522_s_003_w2aab3b7b7b1b6b1aab1c17b3Aa"><h3>Methods</h3><p>In this observational case-control study, patients with significant extracranial carotid artery or intracranial artery stenosis by ultrasound and magnetic resonance angiography (MRA) were studied and compared with an age- and sex-matched group of control participants without evidence of carotid stenosis by ultrasound. Antibodies to <italic>C. pneumoniae</italic> were studied by microimmunofluorescence. IgG titer ≥1:64 or IgA titer ≥ 1:16 were considered positive.</p></sec><sec id="j_1905-7415.1000.522_s_004_w2aab3b7b7b1b6b1aab1c17b4Aa"><h3>Results</h3><p>We included 75 patient participants in the case group with evidence of significant carotid or intracranial stenosis and 75 control participants. IgA seropositivity for <italic>C. pneumoniae</italic> was found in 12 patients in the case group (16%) and 1 control participant (1.3%) (OR 14.1; <italic>P</italic> = 0.001). In the case group, 43 patients participants (57%) and 40 (53%) control participants were seropositive for <italic>C. pneumoniae</italic> IgG (OR 1.18; <italic>P</italic> = 0.62). Multivariate analysis revealed that IgA seropositivity was significantly associated with both cervical and intracranial cerebral atherosclerosis independent of other vascular risk factors.</p></sec><sec id="j_1905-7415.1000.522_s_005_w2aab3b7b7b1b6b1aab1c17b5Aa"><h3>Conclusions</h3><p><italic>C. pneumoniae</italic> IgA seropositivity is associated with cervicocerebral atherosclerosis in Thai patients. This association is independent of other vascular risk factors and is present in almost all subgroups including those with extracranial carotid, intracranial artery, and combined stenoses.</p></sec></abstract>

BackgroundChlamydia pneumoniae infection is associated with coronary and carotid atherosclerosis. The prevalence of chlamydia infection varies from one country to another. Prevalence is related to socioeconomic status and sites of atherosclerosis differ between different ethnicities.ObjectivesTo study the association between chlamydia infections and cervicocerebral atherosclerosis in Thai patients.MethodsIn this observational case-control study, patients with significant extracranial carotid artery or intracranial artery stenosis by ultrasound and magnetic resonance angiography (MRA) were studied and compared with an age- and sex-matched group of control participants without evidence of carotid stenosis by ultrasound. Antibodies to C. pneumoniae were studied by microimmunofluorescence. IgG titer ≥1:64 or IgA titer ≥ 1:16 were considered positive.ResultsWe included 75 patient participants in the case group with evidence of significant carotid or intracranial stenosis and 75 control participants. IgA seropositivity for C. pneumoniae was found in 12 patients in the case group (16%) and 1 control participant (1.3%) (OR 14.1; P = 0.001). In the case group, 43 patients participants (57%) and 40 (53%) control participants were seropositive for C. pneumoniae IgG (OR 1.18; P = 0.62). Multivariate analysis revealed that IgA seropositivity was significantly associated with both cervical and intracranial cerebral atherosclerosis independent of other vascular risk factors.ConclusionsC. pneumoniae IgA seropositivity is associated with cervicocerebral atherosclerosis in Thai patients. This association is independent of other vascular risk factors and is present in almost all subgroups including those with extracranial carotid, intracranial artery, and combined stenoses.

Association between <italic>Chlamydia pneumoniae</italic> infection and atherosclerosis of cervical or intracranial cerebral vessels in Thai patients

Division of Neurology, Department of Medicine, Faculty of Medicine

Asian Biomedicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Association between  infection and atherosclerosis of cervical or intracranial cerebral vessels in Thai patients

BackgroundChlamydia pneumoniae infection is associated with coronary and carotid atherosclerosis. The prevalence of chlamydia infection varies from one country...

Association between Chlamydia pneumoniae infection and atherosclerosis of cervical or intracranial cerebral vessels in Thai patients

Article Category: Brief Communication (Original)

Published Online: Mar 31, 2017

Page range: s57 - s62

DOI: https://doi.org/10.5372/1905-7415.1000.522

Keywords
Atherrosclerosis, cerrical, chlamydia pneumonia, intracranial vessels

© 2016 Napasri N. Chaisinanunkul, Tanittha Chatsuwan, Nijasri C. Suwanwela

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Association between Chlamydia pneumoniae infection and atherosclerosis of cervical or intracranial cerebral vessels in Thai patients

Article Category: Brief Communication (Original)

Published Online: Mar 31, 2017

Page range: s57 - s62

DOI: https://doi.org/10.5372/1905-7415.1000.522

KeywordsAtherrosclerosis, cerrical, chlamydia pneumonia, intracranial vessels

© 2016 Napasri N. Chaisinanunkul, Tanittha Chatsuwan, Nijasri C. Suwanwela

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Atherrosclerosis, cerrical, chlamydia pneumonia, intracranial vessels