Browsing by Author "Van Breemen, R. B."
Now showing items 1-8 of 8
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Black cohosh (Cimicifuga racemosa L.) protects against menadione-induced DNA damage through scavenging of reactive oxygen species: Bioassay-directed isolation and characterization of active principles
Burdette, J. E.; Chen, S. -N; Lu, Z. -Z; Xu, H.; White, B. E. P.; Fabricant, D. S.; Liu, J.; Fong, H. H. S.; Farnsworth, N. R.; Constantinou, Andreas I.; Van Breemen, R. B.; Pezzuto, J. M.; Bolton, J. L. (2002)The roots/rhizomes of Cimicifuga racemosa L. (Nutt.) (black cohosh) have traditionally been used to treat menopausal symptoms through an unknown mechanism of action. In an effort to determine if black cohosh had additional ...
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Chemopreventive effects of soy protein and purified soy isoflavones on DMBA-induced mammary tumors in female Sprague-Dawley rats
Constantinou, Andreas I.; Lantvit, D.; Hawthorne, M.; Xu, X.; Van Breemen, R. B.; Pezzuto, J. M. (2001)There are conflicting reports on the effect of soy and its components on mammary carcinogenesis in adult female rats, mainly because of different rodent models that are used in chemoprevention studies. The present study ...
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Evaluation of estrogenic activity of plant extracts for the potential treatment of menopausal symptoms
Liu, J.; Burdette, J. E.; Xu, H.; Gu, C.; Van Breemen, R. B.; Bhat, K. P. L.; Booth, N.; Constantinou, Andreas I.; Pezzuto, J. M.; Fong, H. H. S.; Farnsworth, N. R.; Bolton, J. L. (2001)Eight botanical preparations that are commonly used for the treatment of menopausal symptoms were tested for estrogenic activity. Methanol extracts of red clover (Trifolium pratense L.), chasteberry (Vitex agnus-castus ...
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A metabolite of equine estrogens, 4-hydroxyequilenin, induces DNA damage and apoptosis in breast cancer cell lines
Chen, Y.; Liu, X.; Pisha, E.; Constantinou, Andreas I.; Hua, Y.; Shen, L.; Van Breemen, R. B.; Elguindi, E. C.; Blond, S. Y.; Zhang, Fengwangdong; Bolton, J. L. (2000)Estrogen replacement therapy has been correlated with an increased risk of developing breast or endometrial cancer. 4-Hydroxyequilenin (4-OHEN) is a catechol metabolite of equilenin which is a minor component of the estrogen ...
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Solubilization and stabilization of carotenoids using micelles: Delivery of lycopene to cells in culture
Xu, X.; Wang, Y.; Constantinou, Andreas I.; Stacewicz-Sapuntzakis, M.; Bowen, P. E.; Van Breemen, R. B. (1999)The use of the organic cosolvents tetrahydrofuran and dimethylsulfoxide was found to be unsuitable for prostate tumor cell cultures because of solvent cytotoxicity and the poor solubility and instability of lycopene. For ...
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The soy isoflavone daidzein improves the capacity of tamoxifen to prevent mammary tumours
Constantinou, Andreas I.; White, B. E. P.; Tonetti, D.; Yang, Y.; Liang, W.; Li, W.; Van Breemen, R. B. (2005)The aim of this study was to determine how the efficacy of tamoxifen is affected when combined with soy isoflavones. To address this, female Sprague-Dawley rats were placed on diets supplemented with tamoxifen, genistein, ...
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Soy protein isolate prevents chemically-induced rat mammary tumors
Constantinou, Andreas I.; Morgan Lucas, L.; Lantvit, D.; Hawthorne, M.; Xu, X.; Chu, W. N.; Jeffery, E. H.; Christov, K.; Van Breemen, R. B.; Pezzuto, J. M. (2002)purified daidzein at 200 mg/kg diet
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Trifolium pratense (red clover) exhibits estrogenic effects in vivo in ovariectomized sprague-dawley rats
Burdette, J. E.; Liu, J.; Lantvit, D.; Lim, E.; Booth, N.; Bhat, K. P. L.; Hedayat, S.; Van Breemen, R. B.; Constantinou, Andreas I.; Pezzuto, J. M.; Farnsworth, N. R.; Bolton, J. L. (2002)Studies were conducted using an ovariectomized rat model to determine the estrogenic and antiestrogenic activity of Trifolium pratense L. (red clover) extracts. A red clover extract, standardized to contain 15% isoflavones ...