4 hydroxyanisole/krūties vėžys

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Antioxidant butylated hydroxyanisole inhibits estrogen-induced breast carcinogenesis in female ACI rats.

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Exposure to estrogens is suggested to be a risk factor in human breast cancer development. The mechanisms underlying estrogen-induced cancer have not been fully elucidated. Both estrogen receptor (ER)-mediated proliferative processes and ER-independent generation of oxidative stress are suggested to

Estrogenic and anti-estrogenic activity of butylparaben, butylated hydroxyanisole, butylated hydroxytoluene and propyl gallate and their binary mixtures on two estrogen responsive cell lines (T47D-Kbluc, MCF-7).

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The estrogenic and anti-estrogenic effects of butylparaben (BuPB), butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and propyl gallate (PG) were evaluated for individual compounds as well as for binary mixtures, using an estrogen-dependent reporter gene assay in T47D-Kbluc breast

Superoxide dismutase 3 is induced by antioxidants, inhibits oxidative DNA damage and is associated with inhibition of estrogen-induced breast cancer.

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Epidemiological data and studies in rodent models strongly support the role of estrogens in the development of breast cancers. Oxidative stress has been implicated in this carcinogenic process. We have recently demonstrated that antioxidants vitamin C or butylated hydroxyanisole (BHA) severely

Induction of NAD(P)H-quinone oxidoreductase 1 by antioxidants in female ACI rats is associated with decrease in oxidative DNA damage and inhibition of estrogen-induced breast cancer.

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Exact mechanisms underlying the initiation and progression of estrogen-related cancers are not clear. Literature, evidence and our studies strongly support the role of estrogen metabolism-mediated oxidative stress in estrogen-induced breast carcinogenesis. We have recently demonstrated that

Antioxidant-mediated up-regulation of OGG1 via NRF2 induction is associated with inhibition of oxidative DNA damage in estrogen-induced breast cancer.

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BACKGROUND Estrogen metabolism-mediated oxidative stress is suggested to play an important role in estrogen-induced breast carcinogenesis. We have earlier demonstrated that antioxidants, vitamin C (Vit C) and butylated hydroxyanisole (BHA) inhibit 17β-estradiol (E2)-mediated oxidative stress and

Antioxidant and anticancer activity of 3,5-dihydroxy-4-isopropylstilbene produced by Bacillus sp. N strain isolated from entomopathogenic nematode.

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3,5-Dihydroxy-4-isopropylstilbene is a natural phytoalexin and was first identified as bacterial secondary metabolites. The aim of this study is to investigate in vitro antioxidant and anticancer activity of 3,5-dihydroxy-4-isopropystilbene purified from the cell free culture filtrate of Bacillus

Induction of a human carbonyl reductase gene located on chromosome 21.

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Carbonyl reductase (EC 1.1.1.184) belongs to the group of enzymes called aldo-keto reductases. It is a NADPH-dependent cytosolic protein with specificity for many carbonyl compounds including the antitumor anthracycline antibiotics, daunorubicin and doxorubicin. Human carbonyl reductase was cloned

In vitro antiproliferative effects on human tumor cell lines of extracts from the Bangladeshi medicinal plant Aegle marmelos Correa.

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In the present paper we show that extracts from Aegle marmelos Correa are able to inhibit the in vitro proliferation of human tumor cell lines, including the leukemic K562, T-lymphoid Jurkat, B-lymphoid Raji, erythroleukemic HEL, melanoma Colo38, and breast cancer MCF7 and MDA-MB-231 cell lines.

Enhancement of nitric oxide and superoxide generations by alpha-tocopheryl succinate and its apoptotic and anticancer effects.

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Tocopheryl succinate (TS), a succinyl ester of alpha-tocopherol (alpha-T), has been reported to have various biological activities. In this communication, we review the current findings about TS including our recent studies of its effects on nitric oxide (NO) and superoxide (O2-) generations

Isolation, characterization, and bioactivities of compounds from Fuscoporia torulosa mushroom.

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Chromatographic purification of Fuscoporia torulosa extracts resulted in the isolation and characterization of a new steroid, 5α,8α-epidioxyergosta-6,22-dien-3β-il-palmitate (1) and 10 known compounds (2-11). The structures of compounds were elucidated by IR, NMR, MS analyses, and comparison with

Polyunsaturated fatty acid-induced cytotoxicity against tumor cells and its relationship to lipid peroxidation.

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The contribution of lipid peroxidation to the killing of human breast cancer cells by gamma-linolenate (GLA) was examined. Other fatty acids of different cytotoxic potential containing 2, 4, 5, and 6 double bonds were also tested for comparison. It was found that the cytotoxic potential varied with

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