5
Patrick Joyce
posted inMetascience
7 months ago

The experimenter's sex influences mouse behavior and responses to pharmacological interventions

Authors
Polymnia Georgiou,Panos Zanos
Ta-Chung M. Mou,Xiaoxian An,Danielle M. Gerhard,Dilyan I. Dryanovski,Liam E. Potter,Jaclyn N. Highland,Carleigh E. Jenne,Brent W. Stewart,Katherine Pultorak,Peixiong Yuan,Chris F. Powels,Jacqueline Lovett,Edna F. Pereira,Sarah M. Clark,Leonardo H. Tonelli,Ruin Moaddel,Carlos A. Zarate,Ronald S. Duman,Scott M. Thompson
+19 authors
,Todd D. Gould
Claim your profile to earn Research CoinRSC Coin

Abstract

Differential rodent responses to the sex of human experimenters could have far reaching consequences in preclinical studies. Here, we show that the sex of human experimenters affects mouse behaviours and responses to the rapid-acting antidepressant ketamine and its bioactive metabolite (2R,6R)-hydroxynorketamine. We found that mice manifest aversion to human male odours, preference to female odours, and increased susceptibility to stress when handled by male experimenters. This male induced aversion and stress susceptibility is mediated by the activation of brain corticotropin-releasing factor (CRF) neurons projecting from the entorhinal cortrex to hippocampal area CA1. We further establish that exposure to male scent prior to ketamine administration activates CRF neurons projecting from the entorhinal cortex to hippocampus, and that CRF is necessary and sufficient for ketamine’s in vivo and in vitro actions. Further understanding of the specific and quantitative contributions of the sex of human experimenters to different experimental outcomes in rodents may lead not only to reduced heterogeneity between studies, but also increased capability to uncover novel biological mechanisms.

Discussion2

Leave a comment or write a review

Paper PDF

Empty State
This academic paper hasn't been uploaded yet
Click the button below to add the paper