Four trials that were not combined in meta-analyses suggested that extracts with high ( > 30 mg/d ) levels of genistein consistently reduced the frequency of hot flushes .
BACKGROUND Vasomotor symptoms , such as hot flushes and night sweats , are very common during the menopausal transition .
Hormone therapy has traditionally been used as a highly effective treatment , but concerns about increased risk of some chronic diseases have markedly increased the interest of women in alternative treatments .
Some of the most popular of these treatments are foods or supplements enriched with phytoestrogens-plant-derived chemicals that have estrogenic action .
OBJECTIVES To assess the efficacy , safety and acceptability of food products , extracts and dietary supplements containing high levels of phytoestrogens when compared with no treatment , placebo or hormone therapy for the amelioration of vasomotor menopausal symptoms ( such as hot flushes and night sweats ) in perimenopausal and postmenopausal women .
Benefits of soy germ isoflavones in postmenopausal women with contraindication for conventional hormone replacement therapy.
OBJECTIVE To evaluate the effects of isoflavones on vasomotor symptoms and blood lipids in postmenopausal women with contraindication for conventional hormone replacement therapy ( HRT ) . METHODS This prospect i ve , double-blind and placebo-controlled study included 50 postmenopausal women r and omly divided into two groups : 25 women on soy germ isoflavones ( 60 mg per day , capsules ) and 25 women on placebo .  Inclusion criteria included : non-vegetarian , non-asian women whose last menstruation date d at least 12 months prior to the beginning of the study , with FSH > 40 mIU/ml , hot flushes and contraindication for HRT , not using tamoxifen or antibiotic and no disease of the gastrointestinal tract . For 6 months , the Kupperman menopausal index ( KMI ) , the vaginal cytological maturation value ( MV ) and both hormonal and lipid profiles were assessed . The t-test and analysis of variance ( ANOVA ) were employed to compare the two groups . RESULTS In both groups , a decreased KI rate was observed . However , isoflavone was significantly superior to placebo in reducing hot flushes ( 44 % versus 10 % , respectively ) ( P < 0.05 ) . After 6 months , the isoflavone group showed increased estradiol levels with unchanged FSH , LH , and vaginal cytology , and a reduction of 11.8 % in LDL and an increase of 27.3 % in HDL ( P < 0.05 ) . In the placebo group , just a reduction in MV was observed after 6 months ( P < 0.05 ) . CONCLUSIONS Soy germ isoflavone exerted favorable effects on vasomotor symptoms and lipid profile , showing itself to be an interesting alternative therapy for the postmenopausal women with contraindication for conventional HRT
Four trials that were not combined in meta-analyses suggested that extracts with high ( > 30 mg/d ) levels of genistein consistently reduced the frequency of hot flushes .
BACKGROUND Vasomotor symptoms , such as hot flushes and night sweats , are very common during the menopausal transition .
Hormone therapy has traditionally been used as a highly effective treatment , but concerns about increased risk of some chronic diseases have markedly increased the interest of women in alternative treatments .
Some of the most popular of these treatments are foods or supplements enriched with phytoestrogens-plant-derived chemicals that have estrogenic action .
OBJECTIVES To assess the efficacy , safety and acceptability of food products , extracts and dietary supplements containing high levels of phytoestrogens when compared with no treatment , placebo or hormone therapy for the amelioration of vasomotor menopausal symptoms ( such as hot flushes and night sweats ) in perimenopausal and postmenopausal women .