Repeated ovarian hyperstimulation promotes depression-like behavior in female mice

Olga Goiana Martins Sampaio, Sacha Aubrey Alves Rodrigues Santos, Marina de Barros Mamede Vidal Damasceno, Larissa Brandão Joventino, Adriana Rolim Campos, Marcelo Borges Cavalcante
In: Hormones and Behavior · 2024 · vol. 164 , pp. 105589 · doi:10.1016/j.yhbeh.2024.105589 · PMID:38878492 · W4399662799
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Abstract

Controlled ovarian hyperstimulation (COH) is a common step for treating infertile couples undergoing assisted reproductive technologies and in female fertility preservation cycles. In some cases, undergoing multiple COHs is required for couples to conceive. Behavioral changes such as anxiety and depression can be caused by ovulation-inducing drugs. Sex steroids play a role in locomotor activity, behavioral changes, and nociception, specifically during fluctuations and sudden drops in estrogen levels. This study evaluated the effect of repeated ovarian hyperstimulation (ROH) on weight, locomotor activity, anxiety-like and depression-like behavior, and nociception in female mice. The animals were divided into two groups: control (placebo; Control) and treated (ROH; Treatment). Ovulation was induced once weekly for 10 consecutive weeks. Locomotor activity (open field test), anxiety-like behavior (elevated plus maze, hole board, and marble burying tests), depression-like behavior (splash and forced swim tests), and nociception (hot plate and Von Frey tests) were evaluated before and after ROH. Statistical analysis was conducted using two-way analysis of variance to evaluate the effects of ROH, age of mice, and their interaction. The results suggested that ROH contributed to weight gain, increased locomotor activity, and induced depression-like behavior in female mice. Furthermore, the age of the mouse contributed to weight gain, increased locomotor activity, and induced anxiety-like and depression-like behavior in female mice. ROH could change the behavior of female mice, particularly inducing depression-like behavior. Further studies are required to evaluate various COH protocols, specifically with drugs that prevent fluctuations and drastic drops in estrogen levels, such as aromatase inhibitors.

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