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L’estetrolo (E4): caratteristiche e peculiarità per l’uso terapeutico in età fertile ed in menopausa


ABSTRACT
{ITA} Gli estrogeni sono ormoni fondamentali per il mantenimento della salute femminile a tutte le età, inoltre i loro derivati sintetici sono largamente utilizzati sia a scopo contraccettivo che come terapia ormonale sostitutiva. Nell’essere umano troviamo quattro tipi di estrogeni: Estrone (E1), estradiolo (E2), Estriolo (E3) ed estetrolo (E4). L’ E4 è uno steroide sintetizzato dal fegato fetale durante la gravidanza ed è stato recentemente studiato al fine di poterlo utilizzare per le terapie ormonali. Sembra infatti essere un valido alleato, grazie alla sua capacità agonista specifica sui recettori estrogenici nucleari alfa (ERα), per lo sviluppo di terapie contraccettive ed eventuali terapie ormonali sostitutive con minori effetti collaterali rispetto a trattamenti con etinil estradiolo. Questa review ha lo scopo di analizzare meglio le caratteristiche di questo estrogeno valutando i suoi possibili utilizzi clinici.

{ENG} Estrogens play a key role in women health at all ages and their derivatives are widely used to develop contraceptive pills and all forms of hormonal replacement treatments. There are four types of estrogens naturally expressed in humans: estrone (E1), estradiol (E2), estriol (E3) and estetrol (E4).
Estetrol (E4) is a steroid produced by the fetal liver during pregnancy. Lately it has been the main focus of research so that to use it for contraception as well as replacement treatment. E4 binds selectively nuclear estrogen receptors alpha (ERα) and represents a valid choice for contraception and hormone replacement therapies during menopause as it appears to have less side effects than ethynil estradiol. This review analyses the characteristics of E4 and evaluates its clinical applications.


I prossimi appuntamenti Aige

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Le alterazioni del ciclo riproduttivo
12 Feb⁠–17 Giu  

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12° Corso Strategie integrative, neuro-attive, e terapie ormonali in Ginecologia Endocrinologica
13 Dic⁠–14 Dic  

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