In:
Clinical Chemistry, Oxford University Press (OUP), Vol. 52, No. 2 ( 2006-02-01), p. 300-303
Abstract:
Background: We examined the effect of atorvastatin on the expression of COX-2 in peripheral blood monocytes from patients with early stage of acute myocardial infarction (AMI), and the plasma C-reactive protein (CRP) concentrations were also examined. Methods: Patients with AMI (n = 40) and with stable coronary heart disease (CHD; n = 18) were registered, and patients with AMI were randomly separated to a group that received routine therapy (group A, n = 20) or to a group that received routine therapy plus atorvastatin at 20 mg/day (group B, n = 20) for a week. Peripheral blood monocytes from patients with AMI both before and after treatment and from patients with stable CHD were isolated and cultured for 24 h. COX-2 mRNA expression was analyzed by reverse transcription-PCR. We measured concentrations of CRP in plasma by ELISA. Results: COX-2 expression was activated in peripheral blood monocytes from patients with AMI [0.92 (0.13)] compared with patients with stable CHD [0.19 (0.08)] ; after a week of treatment, COX-2 expression in group B (reduced by 66%) was obviously lower than in group A (reduced by 24%; P & lt;0.05). Plasma concentrations of CRP from patients with AMI [43.3 (14.9) mg/L] were increased compared with those from patients with stable CHD [1.65 (0.78) mg/L; P & lt;0.05]; after a week of treatment, CRP concentrations in group B (reduced by 62%) were lower than in group A (reduced by 35%; P & lt;0.05). COX-2 expression in peripheral blood monocytes from patients with AMI was positively correlated with plasma CRP concentration (r = 0.662; P & lt;0.05). Conclusions: COX-2 may promote acute inflammatory process after AMI. Atorvastatin may improve the antiinflammatory effects through the COX-2 pathway.
Type of Medium:
Online Resource
ISSN:
0009-9147
,
1530-8561
DOI:
10.1373/clinchem.2005.057893
Language:
English
Publisher:
Oxford University Press (OUP)
Publication Date:
2006
