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Updated: Sep 1, 2025

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
Published on: January 10, 2025
Modeling hormonal contraception in female rats: A framework for studies in behavioral neurobiology
Jesse M Lacasse1, Eamonn Gomez-Perales1, Wayne G Brake1
1Centre for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montréal H4B 1R6, Canada.
Abstract:
Research on hormonal contraceptives (HC) in animal models is lacking, and as a result, so is our understanding of the impact of HC on the brain and behavior. Here, we provide a review of the pharmacology of HC, as well as the methodology and best practices for designing a model of HC in female rats. We outline specific methodological considerations regarding dosing, route of administration, exposure time/timing, and selecting a control group. We also provide a framework outlining important levels of analysis for thinking about the impact of HC on behavioral and neurobiological outcomes. The purpose of this review is to equip researchers with foundational knowledge, and some basic elements of experimental design for future studies investigating the impact of HC on the brain and behavior of female rats.

