actaea cimicifuga/krabbamein

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Actaea racemosa L. extract inhibits steroid sulfation in human breast cancer cells: Effects on androgen formation

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Background: Actaea racemosa L., also known as black cohosh, is a popular herb commonly used for the treatment of menopausal symptoms. Because of its purported estrogenic activity, black cohosh root extract (BCE) may trigger breast cancer

Ethanolic extracts of black cohosh (Actaea racemosa) inhibit growth and oestradiol synthesis from oestrone sulphate in breast cancer cells.

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Extracts of black cohosh (Actaea racemosa) and soy are used as 'natural' alternatives to conventional hormone replacement therapy (HRT) and there is some evidence that soy may protect against breast cancer by inhibiting the production of active oestrogens. This study compares the action of ethanolic

Actein ameliorates hepatobiliary cancer through stemness and p53 signaling regulation.

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Actein is isolated from the rthizomes of Cimicifuga foetida, which is a triterpene glycoside, displaying suppressive effects on breast cancer cells proliferation. However, the effects of actein treatment on liver injury, tending to cancer, have little to be known. Thus, the study is conducted to

Black cohosh (Cimicifuga racemosa [L.] Nutt.): safety and efficacy for cancer patients.

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OBJECTIVE Black cohosh is commonly used to treat hot flashes and other symptoms associated with menopause. It is thought to have multiple mechanisms of action, including potential phytoestrogenic properties. This has caused some concern about its use by patients with hormone-sensitive cancer. This

Petasiphenone, a phenol isolated from Cimicifuga racemosa, in vitro inhibits proliferation of the human prostate cancer cell line LNCaP.

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Extracts of Cimicifuga racemosa (L.) Nutt. (syn.: Actaea racemosa L.) (CR) inhibit the proliferation of the human prostate cancer cell line LNCaP. Recently, the phenylpropanoid ester 3,4-dihydroxyphenacyl caffeate (petasiphenone, 1) was isolated from CR. This substance is a structural homologue to

Lack of promotion of estrogen-dependent mammary gland tumors in vivo by an isopropanolic Cimicifuga racemosa extract.

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Cimicifuga racemosa (CR) is widely used in the treatment of menopausal symptoms. Mechanistic studies suggest that unlike hormone-replacement therapy, CR does not stimulate estrogen-receptor positive breast cancer cells. To evaluate CR safety, we performed an in vivo investigation of a clinically

[Estrogenicity of black cohosh (Cimicifuga racemosa) and its effect on estrogen receptor level in human breast cancer MCF-7 cells].

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The estrogenicity of Black Cohosh (Cimicifuga racemosa, CR) was tested in vivo and in vitro and its effect on estrogen receptor (ER) level of human breast cancer MCF-7 cells were investigated. Based on the body weight of animals, 75, 150 and 300 mg/kg of CR were administered by tube feeding to

Nutritional approaches to late toxicities of adjuvant chemotherapy in breast cancer survivors.

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Adjuvant chemotherapy of breast cancer reduces recurrence rates and prolongs survival at the cost of both acute and chronic toxicities. Breast cancer survivors who have received adjuvant chemotherapy may suffer from late effects of chemotherapy including congestive heart failure, neuropathy,

The effects of black cohosh on the regulation of estrogen receptor (ERα) and progesterone receptor (PR) in breast cancer cells.

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The North American plant Cimicifuga racemosa, also known as black cohosh (BC), is a herb that recently has gained attention for its hormonal effects. As the usage of hormone replacement therapy is declining due to its adverse effects in women with cancer, many are turning to herbal remedies like BC

Cimicifoetisides A and B, two cytotoxic cycloartane triterpenoid glycosides from the rhizomes of Cimicifuga foetida, inhibit proliferation of cancer cells.

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Two new cycloartane-type triterpene glycosides, namely cimicifoetisides A (1) and B (2), along with seven known compounds cimigenol, 25-O-acetylcimigenol, cimigenol 3-O-beta-D-xylopyranoside, 12beta-hydroxycimigenol 3-O-beta-D-xylopyranoside, cimigenol 3-O-alpha-L-arabinopyranoside,

Evaluation of cell death caused by triterpene glycosides and phenolic substances from Cimicifuga racemosa extract in human MCF-7 breast cancer cells.

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We previously reported that the antiproliferative effect of an isopropanolic-aqueous extract of black cohosh (iCR) on MCF-7 estrogen-responsive breast cancer cell line was due to the induction of apoptosis. Here we address the question to what extent apoptosis induction can be ascribed to one of the

Phytoestrogens in botanical dietary supplements: implications for cancer.

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Phytoestrogens are plant constituents that possess either estrogenic or antiestrogenic activity. Although their activities are weak as compared with human endogenous estrogens, the consumption of phytoestrogens may have clinically significant consequences. A number of botanicals, or the compounds

New potential beneficial effects of actein, a triterpene glycoside isolated from Cimicifuga species, in breast cancer treatment.

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Actein is a triterpene glycoside isolated from the rhizomes of Cimicifuga foetida (Chinese herb "shengma") which could inhibit the growth of breast cancer cells. Nevertheless, the effect of actein on angiogenesis, which is an essential step for tumor growth and metastasis, has never been reported.

Chemical Constituents from Cimicifuga dahurica and Their Anti-Proliferative Effects on MCF-7 Breast Cancer Cells.

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This study was designed to search for novel anti-cancer compounds from natural plants. The 70% ethanolic extract from the rizhomes of Cimicifuga dahurica (Turcz.) Maxim. (Ranunculaceae) was found to possess significant in vitro anti-proliferative effects on MCF-7 breast cancer cells. A phytochemical

Iron oxide magnetic nanoparticles combined with actein suppress non-small-cell lung cancer growth in a p53-dependent manner.

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Actein (AT) is a triterpene glycoside isolated from the rhizomes of Cimicifuga foetida that has been investigated for its antitumor effects. AT treatment leads to apoptosis in various cell types, including breast cancer cells, by regulating different signaling pathways. Iron oxide (Fe3O4) magnetic

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