ArticleRespiratory physiology & neurobiology2024
Evaluation of sex-based differences in central control of breathing in American bullfrogs.
Article in Respiratory physiology & neurobiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The neural control of breathing exhibits sex differences. There is now a large effort to account for biological sex in mammalian research, but the degree to which ectothermic vertebrates exhibit sex differences in the central control of breathing is not well-established. Therefore, we compared respiratory-related neural activity in brainstem-spinal cord preparations from female and male bullfrogs to determine if important aspects of the central control of breathing vary with sex. We found that the breathing pattern was similar across males and females, but baseline frequency of the respiratory network was faster in females. The magnitude of the central response to hypercapnia was similar across sexes, but the time to reach maximum burst rate occurred more slowly in females. These results suggest that sex differences may account for variation in traits associated with the control of breathing and that future work should carefully account for sex of the animal in analysis.
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