Determination of Oenothein B as the Active 5-α-Reductase-Inhibiting Principle of the Folk Medicine Epilobium parviflorum

Determination of Oenothein B as the Active 5-α-Reductase-Inhibiting Principle of the Folk Medicine Epilobium parviflorum Quaternary Alkaloids of<i>Tinospora capillipes</i> A New Bisabolene Epoxide from <i>Tussilago</i> <i>farfara</i>, and Inhibition of Nitric Oxide Synthesis in LPS-Activated Macrophages Pyrano-isoflavones with erectile-dysfunction activity from Eriosema kraussianum Potent Inhibition of Human Phosphodiesterase-5 by Icariin Derivatives 2-Phenoxychromones and Prenylflavonoids from <i>Epimedium koreanum</i> and Their Inhibitory Effects on LPS-Induced Nitric Oxide and Interleukin-1β Production Isolation of Two Flavonoids from <i>Tanacetum microphyllum</i> as PMA-Induced Ear Edema Inhibitors Indole Alkaloids from Hosta plantaginea and Inhibition of Steroid 5α-Reductase Activities In Vitro New Prenylflavones from the Leaves of <i>Epimedium sagittatum</i> Hyperinols A and B, Chymotrypsin Inhibiting Triterpenes from Hypericum oblongifolium