Excess neonatal testosterone causes male-specific social and fear memory deficits in wild-type mice.
| Autor: | Quiñones-Labernik P; Department of Neuroscience and Pharmacology, University of Iowa, Iowa City, IA, United States., Blocklinger KL; Carver College of Medicine, University of Iowa, Iowa City, IA, United States., Bruce MR; Temple University, Philadelphia, PA, United States., Ferri SL; Department of Pediatrics, University of Iowa, Iowa City, IA, United States. |
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| Jazyk: | angličtina |
| Zdroj: | BioRxiv : the preprint server for biology [bioRxiv] 2024 Mar 19. Date of Electronic Publication: 2024 Mar 19. |
| DOI: | 10.1101/2023.10.18.562939 |
| Abstrakt: | Neurodevelopmental disorders (ND) disproportionately affect males compared to females, and Autism Spectrum Disorder (ASD) in particular exhibits a 4:1 male bias. The biological mechanisms of this female protection or male susceptibility have not been identified. There is some evidence to suggest that fetal/neonatal gonadal hormones, which play pivotal roles in many aspects of development, may contribute. Here, we investigate the role of testosterone administration during a critical period of development, and its effects on social approach and fear learning in C57BL/6J wildtype mice. Male, but not female mice treated with testosterone on the day of birth (PN0) exhibited deficits in both social behavior and contextual fear conditioning, whereas mice treated with the same dose of testosterone on postnatal day 18 (PN18) did not display such impairments. Testosterone administration did not induce anxiogenic effects or lead to changes in body weight compared to the vehicle-treated group. These impairmeants are relevant to ND and may help identify novel treatment targets. Competing Interests: Additional Information The authors declare no competing interests. |
| Databáze: | MEDLINE |
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