Effects of the phytoestrogen genistein on some predictors of cardiovascular risk in osteopenic, postmenopausal women: a two-year randomized, double-blind, placebo-controlled study.
Abstract | CONTEXT: OBJECTIVE: Our objective was to assess the effects of genistein administration (54 mg/d) on some predictors of cardiovascular risk in osteopenic, postmenopausal women. DESIGN AND SETTING: We conducted a randomized, double-blind, placebo-controlled trial at three Italian university medical centers. INTERVENTION: After a 4-wk stabilization on a standard isocaloric, fat-reduced diet, participants were randomly assigned to receive genistein (n = 198) or placebo (n = 191) daily for 24 months. Both intervention and placebo contained calcium and vitamin D(3). OUTCOME MEASURES: RESULTS: Compared with placebo, genistein significantly reduced fasting glucose and insulin as well as homeostasis model assessment for insulin resistance after both 12 and 24 months of treatment. By contrast, genistein administration did not affect blood lipid levels although fibrinogen, F2-isoprostanes, soluble intercellular adhesion molecule-1, and soluble vascular cellular adhesion molecule-1 decreased significantly compared with placebo after 24 months. Serum osteoprotegerin was higher in the genistein group compared with placebo. At 24 months, the genistein group showed no change in endometrial thickness compared with placebo. Most treatment-related adverse events were moderate and composed of gastrointestinal side effects [ genistein, n = 37 (19%); placebo, n = 15 (8%)]. CONCLUSIONS: These results suggest that 54 mg genistein plus calcium, vitamin D(3), and a healthy diet was associated with favorable effects on both glycemic control and some cardiovascular risk markers in a cohort of osteopenic, postmenopausal women.
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Authors | Marco Atteritano, Herbert Marini, Letteria Minutoli, Francesca Polito, Alessandra Bitto, Domenica Altavilla, Susanna Mazzaferro, Rosario D'Anna, Maria Letizia Cannata, Agostino Gaudio, Alessia Frisina, Nicola Frisina, Francesco Corrado, Francesco Cancellieri, Carla Lubrano, Michele Bonaiuto, Elena Bianca Adamo, Francesco Squadrito |
Journal | The Journal of clinical endocrinology and metabolism
(J Clin Endocrinol Metab)
Vol. 92
Issue 8
Pg. 3068-75
(Aug 2007)
ISSN: 0021-972X [Print] United States |
PMID | 17682090
(Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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Chemical References |
- Biomarkers
- Blood Glucose
- Insulin
- Isoprostanes
- Lipids
- Osteoprotegerin
- Vascular Cell Adhesion Molecule-1
- Intercellular Adhesion Molecule-1
- Fibrinogen
- Genistein
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Topics |
- Aged
- Biomarkers
- Blood Glucose
(metabolism)
- Bone Density
- Bone Diseases, Metabolic
(blood, complications)
- Cardiovascular Diseases
(blood, prevention & control)
- Diet
- Double-Blind Method
- Female
- Fibrinogen
(metabolism)
- Genistein
(adverse effects, therapeutic use)
- Humans
- Insulin
(blood)
- Intercellular Adhesion Molecule-1
(blood)
- Isoprostanes
(blood)
- Lipids
(blood)
- Middle Aged
- Osteoprotegerin
(blood)
- Postmenopause
(physiology)
- Risk Factors
- Treatment Outcome
- Ultrasonography
- Uterus
(diagnostic imaging)
- Vascular Cell Adhesion Molecule-1
(blood)
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