Sterols

Prednisolone is a synthetic corticosteroid, which is a derivative of the natural hormone cortisol. It is derived from the modification of the corticosteroid structure to enhance its anti-inflammatory and immunosuppressive properties. The mode of action of prednisolone involves binding to glucocorticoid receptors, leading to the modulation of gene expression. This results in the suppression of pro-inflammatory cytokines and the inhibition of various immune responses.

Phytoestrogen with anti-cancer properties

9,10-Secocholesta-5,7,10(19)-trien-3beta-ol is a secosteroid compound, which is predominantly derived from the photochemical conversion of 7-dehydrocholesterol in the skin upon exposure to ultraviolet B radiation. This compound undergoes a series of hepatic and renal hydroxylations to form active vitamin D metabolites, such as calcitriol. These active forms modulate calcium and phosphate homeostasis through a nuclear receptor-mediated mechanism that governs gene expression relevant to mineral metabolism.

Pregnenolone acetate is a synthetic compound classified as a steroidal hormone precursor. It is derived from pregnenolone, which is a naturally occurring steroid hormone in the body. Pregnenolone is primarily synthesized from cholesterol, a fundamental component upon which steroidogenesis is based. The acetate form is an ester derivative, which can enhance stability and bioavailability.

Polyphyllin B (Formosanin C) is a natural saponin compound, which is derived from the rhizomes of plants in the genus Paris, particularly Paris polyphylla. Known for its biological activity, Polyphyllin B functions primarily by disrupting cellular membranes and inducing apoptosis in cancer cells through various signaling pathways, including the mitochondrial pathway. This mechanism is attributed to its ability to interfere with cancer cell proliferation and promote cell death, making it a compound of interest in oncological research.

Halcinonide is a potent topical corticosteroid, which is a synthetically derived compound from hydrocortisone. It operates by penetrating the cell membranes and binding to cytoplasmic receptors, leading to a subsequent translocation to the nucleus where it modulates genetic expression. This action results in diminished synthesis of pro-inflammatory cytokines, thereby exerting strong anti-inflammatory, antipruritic, and vasoconstrictive effects.

1-Dehydroepiandrosterone is a steroid hormone and a metabolic intermediate in the biosynthesis of androgen and estrogen sex steroids, which is derived from cholesterol in the adrenal glands, gonads, and brain. Acting primarily as a prohormone, it facilitates the synthesis of active steroid hormones by serving as a precursor molecule that undergoes enzymatic conversion into potent androgens like testosterone and dihydrotestosterone, as well as estrogens such as estradiol within peripheral tissues.

Pregna-4,8-diene-3,20-dione is a synthetic corticosteroid, which is an analog of naturally occurring hormones produced by the adrenal cortex. This compound is synthesized through complex chemical pathways utilizing steroidal intermediates to produce a substance with potent biological activity. The mode of action of Pregna-4,8-diene-3,20-dione involves its ability to alter the transcription of certain genes by binding to glucocorticoid receptors. This interaction induces the synthesis of proteins that inhibit the inflammatory response and suppress the immune system.

Formononetin-7-acetate is a naturally-derived isoflavonoid, which is a product of acetylation of formononetin, predominantly sourced from red clover and other leguminous plants. Its mode of action involves mimicking the effects of estrogens by binding to estrogen receptors, though with less potency than endogenous estrogens. This interaction may lead to modulation of various estrogen-mediated physiological processes.