Serum total 8-iso-prostaglandin F2alpha: a new and independent predictor of peripheral arterial disease.
OBJECTIVE
Circulating 8-iso-prostaglandin F 2alpha (8-iso-PGF 2alpha ) has been proposed as new indicator of oxidative stress, which is involved in the pathophysiologic changes of atherosclerosis. We proposed to test the hypothesis that 8-iso-PGF 2alpha is an independent predictor of symptomatic peripheral arterial disease (PAD).


METHODS
A case-control study in 100 patients with symptomatic PAD and 100 control subjects matched for age, sex, and diabetes mellitus was conducted. Smokers and subjects using lipid-lowering drugs were excluded. Serum total 8-iso-PGF 2alpha was quantified with an enzyme immunoassay.


RESULTS
Median 8-iso-PGF 2alpha was higher in patients with PAD than in control subjects (63 vs 42 pg/mL; P = .001). Logistic regression with hypertension, body mass index, and creatinine, low-density lipoprotein (LDL) cholesterol, triglyceride, high-sensitivity C-reactive protein (hs-CRP), 8-iso-PGF 2alpha , and total homocysteine concentrations as independent variables and case-control status as dependent variable revealed significant odds ratios (OR) for hypertension (OR, 3.74; 95% confidence interval [CI], 1.85-7.53), low-density lipoprotein cholesterol (OR, 1.16, for an increment of 10 mg/dL; 95% CI, 1.07-1.27), high-sensitivity C-reactive protein (OR, 1.02, for an increment of 1 mg/L; 95% CI, 1.00-1.03), and 8-iso-PGF 2alpha (OR, 1.11, for an increment of 10 pg/mL; 95% CI, 1.03-1.20).


CONCLUSIONS
Serum total 8-iso-PGF 2alpha was an independent predictor of PAD in the population studied. This finding supports the hypothesis that 8-iso-PGF 2alpha is a risk marker for PAD. Our results indicate increased systemic oxidative stress in patients with PAD.
Department of Laboratory Medicine, Konventhospital Barmherize Brueder Linz, Austria. thomas.mueller@bblinz.at
T
T
Mueller
B
B
Dieplinger
A
A
Gegenhuber
D
D
Haidinger
N
N
Schmid
N
N
Roth
F
F
Ebner
M
M
Landl
W
W
Poelz
M
M
Haltmayer
D000368:Aged; D000369:Aged, 80 and over; D001161:Arteriosclerosis / Q000097:blood* / Q000378:metabolism; D015415:Biomarkers / Q000097:blood; D016022:Case-Control Studies; D015237:Dinoprost / Q000031:analogs & derivatives / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018384:Oxidative Stress / Q000502:physiology; D016491:Peripheral Vascular Diseases / Q000097:blood* / Q000378:metabolism; D011237:Predictive Value of Tests
D015415:Biomarkers; C075750:8-epi-prostaglandin F2alpha; D015237:Dinoprost