HIGH-DENSITY-LIPOPROTEIN TURNOVER IN PATIENTS WITH HYPERTENSION

被引:25
|
作者
CHEN, YDI
SHEU, WHH
SWISLOCKI, ALM
REAVEN, GM
机构
[1] VET ADM MED CTR,CTR GERIATR RES EDUC & CLIN 182B,3801 MIRANDA AVE,PALO ALTO,CA 94304
[2] STANFORD UNIV,MED CTR,SCH MED,DEPT MED,STANFORD,CA 94305
关键词
HIGH DENSITY LIPOPROTEINS; HYPERINSULINEMIA; APOLIPOPROTEINS; BLOOD PRESSURE; ESSENTIAL HYPERTENSION; HIGH DENSITY LIPOPROTEIN KINETICS;
D O I
10.1161/01.HYP.17.3.386
中图分类号
R6 [外科学];
学科分类号
1002 ; 100210 ;
摘要
Although hyperinsulinemia and decreased high density lipoprotein cholesterol concentration can occur in patients with hypertension, there is no information available concerning the dynamic state of high density lipoprotein metabolism. To address this issue, we quantified high density lipoprotein turnover in 12 patients with mild hypertension and 11 matched subjects with normal blood pressure. Patients with high blood pressure had lower high density lipoprotein cholesterol concentrations. Fractional catabolic rates of I-125-apolipoprotein AI (apoAI)/high density lipoprotein were faster in patients with hypertension (0.36 +/- 0.02 versus 0.26 +/- 0.02 1/day, p < 0.001). Total synthetic rates of apoAI were also significantly greater in patients with high blood pressure (17.4 +/- 1.1 versus 13.2 +/- 0.6 mg/kg/day, p < 0.001). Although significant correlation was observed between blood pressure and fractional catabolic rate of I-125-apoAI/high density lipoprotein in the experimental population (r = 0.52, p < 0.01), no relation was found when patients with normal blood pressure or hypertension were considered separately. However, a highly significant positive correlation was found between I-125-apoAI/high density lipoprotein fractional catabolic rate and insulin concentration in the entire population (r = 0.72, p < 0.001). In conclusion, the patients with mild hypertension studied were hyperinsulinemic, had a faster fractional catabolic rate of I-125-apoAI/high density lipoprotein, and a lower high density lipoprotein-cholesterol concentration. It is suggested that the changes seen in high density lipoprotein-cholesterol concentration and I-125-apoAI/high density lipoprotein fractional catabolic rates were secondary to the hyperinsulinemia and not due to the high blood pressure per se.
引用
收藏
页码:386 / 393
页数:8
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