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- W4313332910 endingPage "109163" @default.
- W4313332910 startingPage "109163" @default.
- W4313332910 abstract "Curcumin is a phytochemical derived from the spice turmeric that is reported to have therapeutic effects. We are studying the enzyme steroid sulfatase (STS), which removes the sulfate group from inactive steroid hormones in peripheral tissues and we were interested in the effect of curcumin on STS activity due to its structural composition (polyphenolic). We sought to determine if curcumin affects STS activity in two model systems, rat liver and NIH-3T3 mouse fibroblast cells. STS assays were performed on tissue extracts of rat liver, and on NIH-3T3 microsomes and cells, with and without curcumin. Male and female rat liver extracts contained substantial amounts of STS activity, with males averaging higher (4-11 %) levels. Estradiol inhibited STS activity in livers of both sexes at 20 and 10 µM. Curcumin acted as a competitive inhibitor of STS activity in rat liver extracts, with a Ki of 19.8 µM in males and 9.3 µM in females. Curcumin also inhibited STS activity in NIH-3T3 microsomes at both 20 µM and 10 µM, and in whole NIH-3T3 cells at 20 µM. These data are the first to demonstrate STS inhibition by curcumin. Inhibition of STS results in lower active steroid hormone (estrogens and androgens) levels in tissues, possibly altering modulation of immune responses by these steroids." @default.
- W4313332910 created "2023-01-06" @default.
- W4313332910 creator A5028047018 @default.
- W4313332910 creator A5088519337 @default.
- W4313332910 date "2023-03-01" @default.
- W4313332910 modified "2023-10-18" @default.
- W4313332910 title "The phytochemical curcumin inhibits steroid sulfatase activity in rat liver tissue and NIH-3T3 mouse fibroblast cells" @default.
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- W4313332910 doi "https://doi.org/10.1016/j.steroids.2022.109163" @default.
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