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Cerca | Lliura | Ajuda | Servei de Biblioteques | Sobre el DDD | Català English Español | |||||||||
| Pàgina inicial > Articles > Articles publicats > The role of Fezolinetant in fear memory consolidation |
| Data: | 2025 |
| Resum: | Modulation of fear memories has important implications for the treatment of different psychiatric disorders including fear-based disorders such as posttraumatic stress disorder (PTSD). The Tachykinin2 (Tac2)/Neurokinin B (NkB)/neurokinin 3 receptor (Nk3R) pathway is a potential candidate for treating fear-based disorders built on animal and human studies. Here we demonstrate that the Nk3R antagonist Fezolinetant presents sex-divergent effects in the processing of fear memories in mice exposed to cued-fear conditioning. Fezolinetant (1 and 10 mg/kg, intraperitoneally (i. p. )) administered 30 min after the fear acquisition impairs the fear memory consolidation in male mice, as measured by fear expression 24 h later, showing no effects in naturally cycling female mice, with no monitoring the estrous cycle. However, when the estrous cycle was monitored, Fezolinetant (1 and 10 mg/kg, i. p. ) enhanced fear memory consolidation during the proestrus phase, which suggests an effect dependent on high levels of the sex hormones estradiol and/or progesterone. Considering that Fezolinetant is currently a treatment for hot flashes in menopausal women, our results could be rapidly translated into clinical trials focused on treating or preventing fear-based disorders. Thus, these findings support the role of Tac2/NkB/Nk3R in fear memory consolidation and emphasize the importance of considering sex differences in the neurobiology of memory-related processes. |
| Ajuts: | Instituto de Salud Carlos III AC19/00077 Agencia Estatal de Investigación PID2020-112705RB-I00 Agencia Estatal de Investigación PID2023-146521OB-I00 Generalitat de Catalunya 2023/SGR-00152 |
| Nota: | Altres ajuts: acords transformatius de la UAB |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Matèria: | Cued-fear conditioning ; Memory processing ; Sex differences ; Proestrus |
| Publicat a: | Brain Research, Vol. 1865 (October 2025) , art. 149879, ISSN 1872-6240 |
6 p, 3.0 MB |