نتایج جستجو برای: soy isoflavone extract
تعداد نتایج: 187159 فیلتر نتایج به سال:
Isoflavones and lignans are soy phytoestrogens that have been suggested to be anticarcinogenic. The mechanisms by which they exert cancer-preventive effects may involve modulation of estrogen synthesis and metabolism. To evaluate this hypothesis, a randomized, cross-over soy isoflavone feeding study was performed in 12 healthy premenopausal women. The study consisted of three diet periods, each...
This study examines the timing of menarche in relation to infant-feeding methods, specifically addressing the potential effects of soy isoflavone exposure through soy-based infant feeding. Subjects were participants in the Avon Longitudinal Study of Parents and Children (ALSPAC). Mothers were enrolled during pregnancy and their children have been followed prospectively. Early-life feeding regim...
Two experiments were conducted to determine the effect of soy isoflavones on growth, meat quality, and carcass traits of growing-finishing pigs. In Exp. 1, 36 barrows (initial and final BW, 26 and 113 kg, respectively) were used and each treatment was replicated four times with three pigs each. The dietary treatments were 1) corn-soybean meal (C-SBM), 2) corn-soy protein concentrate (low isofla...
Soybeans and soy-based products contain isoflavones which can be used for nutraceutical medical applications. In soybeans in unfermented soy foods, are normally present as glycosides. Isoflavone glycosides enzymatically converted to isoflavone aglycones, thus releasing the sugar molecule. The effective absorption of humans requires bioconversion aglycones through activity enzyme β-glucosidase. ...
BACKGROUND The soy isoflavones genistein and daidzein are found in blood and tissues as aglycones, glucuronides, and sulfates. Isoflavone conjugates may serve as sources of aglycones at specific target tissues and may have bioactivity. Yet, very little is known about the plasma pharmacokinetics of isoflavone conjugates after soy ingestion. OBJECTIVE The objective of this study was to determin...
In a controlled feeding study, the effects of substituting 25 g soy protein for meat on calcium retention and bone biomarkers were determined. Postmenopausal women (n = 13) ate two diets that were similar, except that, in one diet, 25 g high-isoflavone soy protein (SOY) was substituted for an equivalent amount of meat protein (control diet), for 7 wk each in a randomized crossover design. After...
BACKGROUND Hormonal effects of soy and isoflavones have been investigated in numerous trials with equivocal findings. We aimed to systematically assess the effects of soy and isoflavones on circulating estrogen and other hormones in pre- and post-menopausal women. METHODS The Cochrane Library, MEDLINE and EMBASE (plus reviews and experts) were searched to December 2007. Inclusion of randomized ...
BACKGROUND Postmenopausal women are at risk of cardiovascular disease (CVD) as a result of unfavorable blood lipid profiles and increased oxidative stress. Soy protein consumption may help protect against these risk factors. OBJECTIVE Our objective was to ascertain the effect of the soy protein components isoflavones and phytate on CVD risk in postmenopausal women. DESIGN In a double-blind ...
Isoflavones are found in leguminous plants, especially soybeans. They have a structural similarity to natural estrogens, which enables them to bind to estrogen receptors and elicit biological activities similar to natural estrogens. They have been suggested to be beneficial for the prevention and therapy of hormone-dependent diseases. After soy products are consumed, the bacteria of the intesti...
BACKGROUND Whether soy food consumption may protect against coronary heart disease (CHD) remains controversial. No previous study has used biomarkers of soy intake in assessing the relationship between soy consumption and CHD. Biomarkers that reflect both intake and metabolism may be more informative than self-reports of dietary intake. METHODS We examined associations of urinary isoflavonoid...
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