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在一项长期的预期性研究中,作者们比较了一种含有30μg乙炔雌二醇和150μg左旋18甲基炔诺酮的复方口服避孕药(OC)和一种约每天释放左旋18甲基炔诺酮290μg和180μg雌二醇的阴道避孕环(CVR),对脂蛋白和阿朴脂蛋白(apo)的效应。这两种治疗引起了明显不同的结果。在OC组中,脂蛋白—脂质浓度仅显示较小的改变,而阿朴脂蛋白(apo)B和A-1的浓度则增加了大约15%。相反,在用CVR治疗的过程中,高密度脂蛋白(HDL)中的
In a long-term prospective study, the authors compared a compound oral contraceptive (OC) containing 30 μg ethinyl estradiol and 150 μg levonorgestrel 18 and a daily oral release of levonorgestrel 18 Vaginal Contraceptive ring (CVR) of ketone 290 μg and 180 μg estradiol, effects on lipoproteins and apolipoproteins (apo). Both treatments caused apparently different results. In the OC group, the lipoprotein-lipid concentration showed only minor changes, whereas the concentrations of apolipoprotein B and A-1 increased by approximately 15%. In contrast, high-density lipoprotein (HDL) is involved in the treatment with CVR