Norethindrone acetate enhances the antiatherogenic effect of 17beta-estradiol: a secondary prevention study of aortic atherosclerosis in ovariectomized cholesterol-fed rabbits.
Norethindrone acetate enhances the antiatherogenic effect of 17beta-estradiol: a secondary prevention study of aortic atherosclerosis in ovariectomized cholesterol-fed rabbits.
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醋酸炔诺酮增强 17β-雌二醇的抗动脉粥样硬化作用:一项对卵巢切除胆固醇喂养的兔子主动脉粥样硬化的二级预防研究。
DOI:
10.1161/01.atv.18.6.902
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
C. Christiansen
中科院分区:
文献类型:
--
作者:
P. Alexandersen;J. Haarbo;I. Sandholdt;M. Shalmi;H. Lawaetz;C. Christiansen
The influence of progestogens in combination with 17beta-estradiol (E2) on cardiovascular disease remains controversial. This study investigated the effect of norethindrone acetate (NETA) combined with E2 on aortic atherosclerosis. Eighty mature female rabbits were ovariectomized, then fed a cholesterol-rich diet (240 mg/d) for 14 weeks to induce aortic atherosclerosis. They were randomized to four equally large groups for the following 38-week intervention period. One group received placebo, another group oral E2 4 mg daily (E2), and the last two groups oral E2 4 mg daily combined with either NETA 1 mg (E2NETA1) or NETA 3 mg (E2NETA3). The cholesterol intake was reduced to a "maintenance" level of 80 mg/d during the intervention period. Total serum cholesterol and ultracentrifuged lipoproteins were analyzed enzymatically throughout the study. The cholesterol content in the aortic wall was 2.76+/-0.44 micromol/cm2 (mean+/-SEM) in the E2NETA1 group, 1.77+/-0.37 micromol/cm2 in the E2NETA3 group, 5.46+/-0.77 micromol/cm2 in the E2 group, and 7.20+/-0.94 micromol/cm2 in the placebo group (ANOVA P<0.0001). The difference (in the aortic cholesterol accumulation) between the E2 and each of the combined E2/NETA groups was statistically significant (P<0.01) but could only partly be explained by the differences in serum lipids and lipoproteins. In conclusion, NETA enhances the antiatherogenic effect of E2 in cholesterol-fed rabbits. This effect is only partially mediated through changes in serum lipids and lipoproteins.
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DOI:
10.1161/01.atv.10.6.1051
发表时间:
1990-11-01
期刊:
ARTERIOSCLEROSIS
影响因子:
--
作者:
ADAMS, MR;KAPLAN, JR;CLARKSON, TB
通讯作者:
CLARKSON, TB
影响因子:
8.7
作者:
Adams, MR;Register, TC;Williams, JK
通讯作者:
Williams, JK
影响因子:
158.5
作者:
Grodstein, F;Stampfer, MJ;Hennekens, CH
通讯作者:
Hennekens, CH
影响因子:
158.5
作者:
COLDITZ, GA;WILLETT, WC;HENNEKENS, CH
通讯作者:
HENNEKENS, CH
DOI:
10.1172/jci115526
发表时间:
1991
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Wagner,JD;Clarkson,TB;StClair,RW;Schwenke,DC;Shively,CA;Adams,MR
通讯作者:
Adams,MR