Selective estrogen receptor modulators regulate dendritic spine plasticity in the hippocampus of male rats
Some selective estrogen receptor modulators, such as raloxifene and tamoxifen, are neuroprotective and reduce brain inflammation in several experimental models of neurodegeneration. In addition, raloxifene and tamoxifen counteract cognitive deficits caused by gonadal hormone deprivation in male rats...
| Publié dans: | Neural plasticity. - 1998. - 2012(2012) vom: 28., Seite 309494 |
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| Auteur principal: | |
| Autres auteurs: | , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2012
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| Accès à la collection: | Neural plasticity |
| Sujets: | Journal Article Research Support, Non-U.S. Gov't Receptors, Estrogen Selective Estrogen Receptor Modulators Tamoxifen 094ZI81Y45 Raloxifene Hydrochloride 4F86W47BR6 |
| Résumé: | Some selective estrogen receptor modulators, such as raloxifene and tamoxifen, are neuroprotective and reduce brain inflammation in several experimental models of neurodegeneration. In addition, raloxifene and tamoxifen counteract cognitive deficits caused by gonadal hormone deprivation in male rats. In this study, we have explored whether raloxifene and tamoxifen may regulate the number and geometry of dendritic spines in CA1 pyramidal neurons of the rat hippocampus. Young adult male rats were injected with raloxifene (1 mg/kg), tamoxifen (1 mg/kg), or vehicle and killed 24 h after the injection. Animals treated with raloxifene or tamoxifen showed an increased numerical density of dendritic spines in CA1 pyramidal neurons compared to animals treated with vehicle. Raloxifene and tamoxifen had also specific effects in the morphology of spines. These findings suggest that raloxifene and tamoxifen may influence the processing of information by hippocampal pyramidal neurons by affecting the number and shape of dendritic spines |
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| Description: | Date Completed 27.03.2012 Date Revised 29.04.2023 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1687-5443 |
| DOI: | 10.1155/2012/309494 |