Pro léčbu klimakterického syndromu existuje kromě standardní hormonální léčby i možnost léčby nehormonální, což bývá opomíjeno. Významnou roli v ní mají fytoestrogeny. Byť nebyl dosud prokázán vliv podávání fytoestrogenů na dlouhodobé změny v důsledku estrogenního deficitu, jejich podávání jednoznačně zmírňuje projevy akutního nedostatku estrogenů. Článek přináší stručný přehled možností nehormonální léčby především se zaměřením na užití fytoestrogenů., Besides hormone replacement therapy we can use nonhormonal therapy for acute climacteric syndrome. The nonhormonal farmacotherapy is based on fytoestrogens. The influence of fytoestrogens on long term changes from estrogen deficinency has not been confirmed. On opossite side the effect on acute climacteric syndrome is clear. Short overview of possible nonhormonal solution is given with focus on fytoestrogenes., and Tomáš Fait
Extracts of Helleborus roots were traditionally used in the Balkan area for their analgesic action. We report that the pure natural product MCS-18 isolated from this source is a potent, specific and reversible antagonist of the capsaicin receptor, TRPV1, expressed in rat dorsal root ganglion (DRG) neurons. TRPV1 is a nonselective cation channel expressed in a subset of cutaneous and visceral sensory nerve endings and activated by noxious heat, acidity and fatty acid metabolites of arachidonic acid, with a decisive role in inflammatory heat hyperalgesia. MCS-18 inhibited the increase in intracellular calcium concentration evoked in DRG neurons by capsaicin (300 nM) and low pH (5.5) but not by heat (43 ºC). The substance had no effect on the responses mediated by acid-sensing ion channels (ASICs) or the irritant receptor TRPA1. Whole-cell patch-clamp was used to confirm the inhibition of capsaicin-induced currents by MCS-18 which was dose-dependent. The mechanism of inhibition does not require an intact cell, as capsaicin-induced currents were also inhibited in the excised outside-out configuration. The antagonism of the capsaicin and proton action on native TRPV1 by MCS-18 may be of interest for pain therapy., C. Neacsu ... [et al.]., and Obsahuje bibliografii a bibliografické odkazy