Journal
JOURNAL OF PHARMACOLOGICAL SCIENCES
Volume 95, Issue 4, Pages 476-478Publisher
JAPANESE PHARMACOLOGICAL SOC
DOI: 10.1254/jphs.SCJ04005X
Keywords
soybean isoflavone; menopausal flushing; ovariectomy
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Hot flushes are one of the most frequent symptoms in menopausal women. We investigated effect of soybean isoflavones (Soyaflavone HG) on nifedipine-induced flushing in ovariectornized mice. Ovariectomy markedly aggravated nifedipine-induced increase in tail skin temperature. Soyaflavone HG (10 mg/kg, p.o., once a day for 5 days) inhibited nifedipine-induced flushing in ovariectomized mice. The inhibitory effect of Soyaflavone HG was significantly reversed by an estrogen-receptor antagonist, ICI 182,780, suggesting that Soyaflavone HG prevents nifedipine-induced flushing partially through estrogen receptors. We presented the experimental evidence suggesting that soybean isoflavones including Soyaflavone HG have the benefits for menopausal hot flushes.
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