Effects of the Phytoestrogen Genistein on the Circulating Soluble Receptor Activator of Nuclear Factor κB Ligand-Osteoprotegerin System in Early Postmenopausal Women

We investigated the serum levels of both receptor activator of nuclear factor κB ligand (RANKL) and its decoy receptor osteoprotegerin (OPG) in postmenopausal healthy women after a 1-yr therapy with genistein, (n = 30; 54 mg/d), hormone replacement therapy (n = 30; 1 mg/d 17β-estradiol combined with...

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Veröffentlicht in:The journal of clinical endocrinology and metabolism 2004-01, Vol.89 (1), p.188-192
Hauptverfasser: Crisafulli, Alessandra, Altavilla, Domenica, Squadrito, Giovanni, Romeo, Adolfo, Adamo, Elena B., Marini, Rolando, Inferrera, Maria A., Marini, Herbert, Bitto, Alessandra, D’anna, Rosario, Corrado, Francesco, Bartolone, Sebastiano, Frisina, Nicola, Squadrito, Francesco
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Sprache:eng
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Zusammenfassung:We investigated the serum levels of both receptor activator of nuclear factor κB ligand (RANKL) and its decoy receptor osteoprotegerin (OPG) in postmenopausal healthy women after a 1-yr therapy with genistein, (n = 30; 54 mg/d), hormone replacement therapy (n = 30; 1 mg/d 17β-estradiol combined with norethisterone acetate) and placebo (n = 30). By comparison with placebo, the soluble RANKL (sRANKL)/OPG ratio was lower in the genistein group (−69 ± 7%; P < 0.01 vs. placebo 81 ± 24%) and in hormone replacement therapy-treated women (−11 ± 2%; P < 0.01 vs. placebo). A positive correlation (r = 0.63; P < 0.01) was found between 1-yr percentage change in sRANKL/OPG ratio and 1-yr change in urinary deoxypyridinoline, a bone resorption marker. A negative correlation was observed between 1-yr percentage change in sRANKL/OPG ratio and 1-yr change in femoral neck bone mineral density (r = −0.7; P < 0.01). Our findings suggest that the sRANKL-OPG system may mediate the beneficial effects of genistein on bone remodeling in postmenopausal women.
ISSN:0021-972X
1945-7197
DOI:10.1210/jc.2003-030891