Pyotr A Kisselev

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Commercially available St. John's wort (Hypericum perforatum) preparations and some of their main constituents (hypericin, pseudohypericin, hyperforin, rutin, and quercetin) were examined for their potential to inhibit carcinogen activation by human cytochrome P450 1A1 (CYP1A1). We used a reconstituted system consisting of purified human CYP1A1, purified(More)
To explore the underlying mechanism of cancer cell growth inhibition by brassinosteroids (BS), reactive oxygen species (ROS) generation under treatment with 28-homocastasterone and its synthetic derivatives (22S,23S)-28-homocastasterone was measured in A549 human lung adenocarcinoma cells. BS induced ROS generation in A549 cells and their growth in a time(More)
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