Folia Medica Indonesiana
ISSN 0303-7932
Vol. 48 / No. 2 / Published : 2012-04
Order : 3, and page :54 - 57
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Original Article :
Soot particulate exposure increases cd54/intercellular adhesion molecule-1 (icam-1) expression in cardiovascular disorder
Author :
- Meity Ardiana*1
- M. Aminuddin*2
- Dosen Fakultas Kedokteran
- Dosen Fakultas Kedokteran
Abstract :
Exposure of air pollution has become a risk factor for cardiovascular disease. One mechanism thought to contribute is oxidative stress, which will increase the reactive oxygen species resulting in release of pro-inflammatory cytokines and increased expression of adhesion molecules such as intercellular adhesion molecule-1 (ICAM-1). The aim of this study was to describe the effects of soot particulate (carbon black powder) exposures on ICAM-1 expressions in mechanism of cardiovascular disorders. Experiments were performed on white female rats (Rattus novergicus) divided into 3 groups: control group (P0) (n=12), without exposure to soot particulate; an treatment group 1 (P1) (n=12), exposed to soot particulate concentration of 532 mg/m3 one hour/day for 30 days; and an treatment group 2 (P2) (n=12), exposed to soot particulate concentration of 1064 mg/m3 one hour/day for 30 days. Immunohistochemical staining was used to quantify the expression of ICAM-1 in cardiac tissues. We quantified the expressions of ICAM-1 with the number of immunoreactive cells in 5 fields of view. The mean ICAM-1 expressions were different between P0, P1 and P2 (4.9, 21.47, 36.33). Expression of ICAM-1 was statistically significant between three groups (p=0,001). The increase ofICAM-1 expression in P0 compared to P1 (p=0,019), P0 compared to P2(p=0,000) and P1 compared to P2 (p=0.045) were significant. Exposures to soot particulate matter increased the ICAM-1 expression in subjects significantly. Our findings suggest a key role of activation inflammatory pathway in response to soot particulate exposure in cardiovascular disease.
Keyword :
soot particulate, cardiovascular disorders, oxidative stress, ICAM-1,
References :
Bind MA, Baccarelli A, Zanobetti A, Tarantini L, Suh H, Vokonas P, Schwartz J,(2012) Air pollution and markers of coagulation, inflammation, and endothelial function: associations and epigene-environment interactions in an elderly cohort - : Epidemiology
Alfaro-Moreno E, Garcia-Cuellar C, De-Vizcaya-Ruiz A, Rojas-Bracho L, Osornio-Vargas AR,(2010) Cellular mechanisms behind particulate matter air pollution-related health effects. In: Gurjar BR, Molina LT, Ojha CSP (eds). Air Pollution Health and Environmental Impacts Boca Raton : CRC Press
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