Valerian (herb) particular binding site. Hydrophilic extractions of the herb commonly sold over the counter, however, probably do not contain significant amounts of isovaltrate. Valerenic acid in valerian stimulates serotonin receptors as a partial agonist, including 5-HT which is implicated in the sleep-wake cycle. The chief constituent of valerian is a yellowish-green to brownish-yellow oil present in the dried root, varying in content from 0.5 to 2.0%. This variation in quantity may be determined by location; a dry, stony soil yields a root richer in oil than moist, fertile soil. The volatile oils that form the active ingredient are pungent, somewhat reminiscent
Valerian Stan cu degetele în urechi” and editorial by Cristian Tudor Popescu „Guvernul conduce reforma pe ultimul drum”; Magazine 22, 8-14 iulie 1997, „Compromis la Guvern/ Valerian Stan – Casele, demnitarii şi demnitatea”; România liberă, 19 iulie 1997, „Lista lui Stan/ Moşierii nu mai vin, i-a făcut regimul Iliescu/ 11.000 de hectare de terenuri agricole luate cu japca doar în 4 judeţe”; România liberă, 26 august, editorial by Octavian Paler „Bizareriile d-lui Ciorbea”; Evenimentul zilei, 28 august 1997, „Prin demiterea lui Valerian Stan, Guvernul rade incoruptibilii”; Adevărul, 28 august 1997, „Monstruoasa coaliţie l-a demis pe Valerian Stan”, editorial by Adrian Ursu; România