Phytoestrogen α-zearalanol inhibits atherogenesis and improves lipid profile in ovariectomized cholesterol-fed rabbits

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• 作者：Dr. Shunling Dai (1)
  Jinhong Duan (1) (3)
  Yuan Lu (1)
  Yihua Zhang (1)
  Jinxuan Cheng (1)
  Dr. Jun Ren (1) (3)
  Xiaoyuan Zhao (5)
  Yunqing Wu (1)
  Yue Yu (1)
  Pingping Zuo (1)
  Yiyong Wu (6)
  Qinsheng Ge (7)
  
• 关键词：Phytoestrogen ; estrogen ; zearalenone ; atherosclerosis ; lipid profile
• 刊名：Endocrine
• 出版年：2004
• 出版时间：November 2004
• 年：2004
• 卷：25
• 期：2
• 页码：121-129
• 全文大小：306KB
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• 作者单位：Dr. Shunling Dai (1)
  Jinhong Duan (1) (3)
  Yuan Lu (1)
  Yihua Zhang (1)
  Jinxuan Cheng (1)
  Dr. Jun Ren (1) (3)
  Xiaoyuan Zhao (5)
  Yunqing Wu (1)
  Yue Yu (1)
  Pingping Zuo (1)
  Yiyong Wu (6)
  Qinsheng Ge (7)
  
  1. Faculty of Basic Medicine, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, 100005, Beijing, P.R. China
  3. University of Wyoming College of Health Sciences, 82071-3375, Laramie, WY, USA
  5. Capital Institute of Pediatrics, 100021, Beijing, P.R. China
  6. Department of Obstetric and Gynecology, Beijing Hospital, Beijing, 100730, P.R. China
  7. Department of Obstetric and Gynecology, Peking Union Medical College Hospital, 100730, Beijing, P.R. China
  

文摘

Although favorable effects of estrogen replacement therapy on atherosclerosis have been recognized, the benefit versus risk of estrogen replacement on overall cardiovascular health remains controversial. The main adverse effect jeopardizing the clinical usage of estrogen is the increased risk of breast and endometrial cancer. Zearalenone (ZEN) is a universal endogenous hormone possessing estrogen-like effects and facilitating plant growth. α-Zearalanol (α-ZAL), a new phytoestrogen, is a reductive product of ZEN. Our preliminary evidence suggested that α-ZAL is anti-atherosclerotic. The aim of this study was to examine the effect of α-ZAL on atherosclerotic formation and serum lipid profile. Adult female nulliparous rabbits were ovariectomized or sham-operated and fed a high-cholesterol diet with different doses of α-ZAL or 17β-estradiol for 12 wk. The aortic intimal atherosclerotic plaque was significantly larger in the cholesterol-fed group compared to control and sham groups. α-ZAL and 17β-estradiol treatments significantly reduced plaque formation and improved serum profile of lipid (TC, TG, HDL-C, and LDL-C) and lipoprotein (ApoAl and ApoB). Both α-ZAL and 17β-estradiol reconciled ovariectomy-induced uterine atrophy, although α-ZAL was significantly less potent than 17β-estradiol in stimulating uterine growth. Our findings indicate that the phytoestrogen α-ZAL has an important anti-atherogenic property, analogous to that of estrogen.