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This study reports the development of novel 4-amido-Δ4,6-steroids as potential inhibitors of 5α-reductase, showing promising in vitro results for conditions like acne and benign prostatic cancer.

This study found that ethanol and petroleum ether extracts of Tridax procumbens roots demonstrated significant antibacterial activity against various bacterial strains compared to benzene extracts.

This study reviews the potential of dibenzo derivatives as safer cancer treatments but finds conflicting evidence about their effectiveness, possibly due to structural differences among the compounds, and reports no new results.

This invention reports piperazine derivatives as potent inhibitors of type 3 17β-hydroxysteroid dehydrogenase, suggesting potential therapeutic applications in treating prostate cancer, acne, and androgenic alopecia.

This study identified various secondary metabolites such as terpenes, phenolic acids, and flavonoids in plants mentioned by Ibnu Sina for hair cosmetic applications.

In this study, researchers isolated new compounds from the plant *Calanthe cardioglossa* and found that five of these compounds, particularly calancardin B, significantly reduced TNF-α levels in immune cells relevant to multiple sclerosis, suggesting potential for immunomodulatory effects.

This study found that the EtOAc extract of Tridax procumbens aerial parts significantly inhibited rat paw edema and COX enzyme activity, suggesting its potential anti-inflammatory properties.

This study found that terpene compound concentrations in coniferous tree leaves were generally highest in spring and summer, suggesting these seasons are most effective for extracting essential oils.

This study analyzed the ethanol extract of pacing tawar leaves and found it contains alkaloids, saponins, tannins, and steroids but not flavonoids, suggesting potential for use in natural medicinal products.

In this study, researchers successfully synthesized a rigid 3a-arylhexahydropentalene-1,6-dione from the easily accessible starting material cyclopent-2-en-1-one, highlighting a structural motif common in natural products and pharmaceuticals.

This study identified seven compounds from Cercidiphyllum japonicum twig extracts, including a newly discovered flavonoid, marking the first time these specific compounds have been isolated from this genus.

This study successfully synthesized novel cercidin analogues from Cercidophyllum japonicum, confirming their structure via NMR data. The researchers suggest these compounds could facilitate future antibiotic development by advancing structure-activity-relationship studies.

This study identified compounds from Laportea bulbifera with potential inhibitory effects on human steroid 5α-reductase 2, suggesting their application in treating benign prostatic hyperplasia.

This study found that compound 4 from Urtica triangularis subsp. pinnatifida exhibited stronger anti-BPH activity against BPH-1 cells with an IC50 of 79.75 μM compared to finasteride's IC50 of 91.8 μM, while compounds 1, 2, and 5 showed moderate activity.

This study suggests that certain Dibenzo derivatives may be promising candidates for prostate cancer treatment due to their potential interactions with the androgen receptor and 5α-reductase enzyme.

This study reported that phytochemicals SA-4 and SA-6 from Tridax procumbens exhibited a dose-related immunostimulatory effect on mice, suggesting their potential as immunostimulators.

This study found that several synthesized pregnane derivatives exhibited significant inhibitory effects on testosterone conversion to dihydrotestosterone and reduced related androgenic parameters in multiple pharmacological models.

This review discusses the phytoconstituents and biological properties of T. orientalis and T. occidentalis, but reports no new clinical results.

This study investigated the cytotoxic effects of DHA derivatives on cancer cell lines and found that didocosahexaenoin was the most potent, inducing apoptosis and producing reactive oxygen species in PC3 prostate carcinoma cells.

This study identified over 40 phytochemical compounds in the leaves and flowers of Bituminaria bituminosa, predominantly glycosylated flavonoids from apigenin, using advanced chromatographic techniques.

This review discusses the use of terpenes and invasomes as permeation enhancers for transdermal drug delivery, focusing on their potential applications in pharmaceutical formulations, but it reports no new experimental results.

This study explored the in vitro skin penetration of two compounds from Tectona grandis leaf extract used for standardization and found that compound 1 penetrates more efficiently than compound 2, especially with a propylene glycol enhancer.

This study found that several new pregnane derivatives, especially steroids 16 and 19, demonstrated higher antiandrogenic activity on male hamster models than the commonly used finasteride.

This study found that skin exposure to toluene diisocyanate in mice creates immune-recognition reservoirs in the skin's stratum corneum and hair follicles, potentially leading to sensitization and allergic reactions.

In this study, the wood essential oil of *Juniperus morrisonicola* exhibited significant anti-inflammatory activity, notably inhibiting nitric oxide production in stimulated macrophages, and showed cytotoxic effects against liver cancer cells, suggesting its potential for drug development and eco-friendly applications.

This review synthesizes research on hederagenin's anticancer and anti-inflammatory potential, emphasizing chemical modifications to enhance its bioactivity, but reports no new experimental findings.

This study identified that the biosynthetic pathways for coumestans in Eclipta prostrata are derived from acetate and shikimate pathways, while phenylpropanoid biosynthesis is exclusively from the shikimate pathway.

This study identified two potent 5α-reductase inhibitors from Tectona grandis leaves, and suggests that ethanol is a preferable solvent for extracting these compounds, which are potential ingredients for hair loss treatments.

This study found that essential oils from Hedychium spicatum showed anti-inflammatory, antinociceptive, antipyretic, and antioxidant activities, with site-specific variations in their effectiveness.

In this chemical investigation, cyclospongiaquinone 1 from the sponge Verongula cf. rigida showed strong steroid 5α-reductase inhibitory activity, comparable to that of finasteride.