Coinfection with Mycoplasma Pneumoniae and Chlamydia Pneumoniae in ruptured plaques associated with acute myocardial infarction

OBJECTIVE: To study atheromas, Mycoplasma pneumoniae (M. pneumoniae), and Chlamydia pneumoniae (C. pneumoniae). METHODS: C. pneumoniae was studied with immunohistochemistry and M. pneumoniae with in situ hybridization (ISH), in segments of coronary arteries (SCA) as follows: group A - thrombosed ruptured plaques (TRP) of 23 patients who died due to acute myocardial infarction (AMI); group B - 23 nonruptured plaques (NRP) of group A patients; group C - NRP of 11 coronary patients who did not die due to AMI; and group D - 11 SCA from patients with dilated cardiomyopathy or Chagas' disease without atherosclerosis. RESULTS: The mean number of C. pneumoniae+ cells/400x in groups A, B, C, and D was, respectively, 3.3±3.6; 1.0±1.3; 1.2±2.4; and 0.4±0.3; and the percentage of M. pneumoniae area was, respectively, 3.9±3.5; 1.5± 1.6; 0.9±0.9; and 0.4±0.2. More M. pneumoniae and C. pneumoniae were found in of group A than in group B (P<0.01). Good correlation was seen between the area of the vessel and the M. pneumoniae area in the plaque (r = 0.46; P=0.001) and between C. pneumoniae+ cells and CD4+ T lymphocytes (r = 0.42; P<0.01). The number of C. pneumoniae+ cells correlated with CD20+ B cells (r=0.48; P<0.01). CONCLUSION: M. pneumoniae and C. pneumoniae are more frequently found in TRP correlate with the intensity of the inflammation and diameter of the vessel (positive remodeling)..

Medienart:

E-Artikel

Erscheinungsjahr:

2003

Erschienen:

2003

Enthalten in:

Zur Gesamtaufnahme - volume:81

Enthalten in:

Arquivos Brasileiros de Cardiologia - 81(2003), 1, Seite 12-22

Sprache:

Englisch ; Portugiesisch

Beteiligte Personen:

Maria de Lourdes Higuchi [VerfasserIn]
Marcia Martins Reis [VerfasserIn]
Nádia Vieira Sambiase [VerfasserIn]
Suely Aparecida Pinheiro Palomino [VerfasserIn]
Jussara Bianchi Castelli [VerfasserIn]
Paulo Sampaio Gutierrez [VerfasserIn]
Vera Demarchi Aiello [VerfasserIn]
José Antonio Franchini Ramires [VerfasserIn]

Links:

doi.org [kostenfrei]
doaj.org [kostenfrei]
www.scielo.br [kostenfrei]
Journal toc [kostenfrei]
Journal toc [kostenfrei]

Themen:

Acute myocardial infarction
Chlamydia pneumoniae
Diseases of the circulatory (Cardiovascular) system
Mycoplasma pneumoniae

doi:

10.1590/S0066-782X2003000900001

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

DOAJ039608352