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Abstract：
OBJECTIVE: Phytosterols have been proposed to be atherogenic. This research investigates whether plasma concentrations of phytosterols correlate with the manifestation of coronary heart disease.
RESULTS: The CORA study compares clinical, biochemical, and lifestyle factors in consecutive pre- and postmenopausal women with incident coronary heart disease to those in age-matched population-based controls. Controls (n=231) had significantly higher plasma concentrations of the major phytosterol species than cases (n=186) (4.649mg/l vs. 4.092mg/l; p<0.001). Cases had a higher dietary intake of phytosterols, but the ratio of lathosterol over sitosterol did not significantly differ. Phytosterols correlated with cholesterol concentrations of LDL and HDL, the phytosterol-carrying lipoproteins. The age-adjusted odds ratio for the association of total phytosterols and risk of coronary heart disease was 0.69 per 5mg/dl (95% CI 0.46-0.99). After adjustment for LDL- and HDL-cholesterol the odds ratio approached 1 (0.89; 95% CI 0.61-1.30), which was reached after additional adjustment for major risk factors, particularly those reflecting the metabolic syndrome (1.05; 95% CI 0.64-1.97).
CONCLUSIONS: Healthy controls had higher unadjusted concentrations of plasma phytosterols, but the adjusted odds ratio for coronary heart disease did not point to an impact of plasma phytosterols on coronary heart disease.
RESULTS: The CORA study compares clinical, biochemical, and lifestyle factors in consecutive pre- and postmenopausal women with incident coronary heart disease to those in age-matched population-based controls. Controls (n=231) had significantly higher plasma concentrations of the major phytosterol species than cases (n=186) (4.649mg/l vs. 4.092mg/l; p<0.001). Cases had a higher dietary intake of phytosterols, but the ratio of lathosterol over sitosterol did not significantly differ. Phytosterols correlated with cholesterol concentrations of LDL and HDL, the phytosterol-carrying lipoproteins. The age-adjusted odds ratio for the association of total phytosterols and risk of coronary heart disease was 0.69 per 5mg/dl (95% CI 0.46-0.99). After adjustment for LDL- and HDL-cholesterol the odds ratio approached 1 (0.89; 95% CI 0.61-1.30), which was reached after additional adjustment for major risk factors, particularly those reflecting the metabolic syndrome (1.05; 95% CI 0.64-1.97).
CONCLUSIONS: Healthy controls had higher unadjusted concentrations of plasma phytosterols, but the adjusted odds ratio for coronary heart disease did not point to an impact of plasma phytosterols on coronary heart disease.
摘要：
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