Metabolomics reveals highly regional specificity of cerebral sexual dimorphism in mice

MetaThinking people small AdobeStock 296800602bolomics is a powerful tool for studying the differences between individuals or groups. In the paper by Chabrun et al., the cerebral sexual dimorphism in mice was observed with a high degree of regional specificity using targeted metabolomics techniques.
Overall, it was found that female mice showed higher levels of threonine and tryptophan across different brain regions, while male mice have higher levels of hydroxyproline, creatinine, and hexoses. These results correlate well with previous findings on sexual dimorphism measured in serum. There are also other and more pronounced differences in the metabolome of the investigated brain regions (brain stem, frontal cortex, and cerebellum), which the authors explain in detail. Going forward, these results should help increase the understanding of physiological differences and expression of neurological diseases between sexes.
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Floris Chabrun, Xavier Dieu, Guillaume Rousseau, Stéphanie Chupina, Franck Letournel, Vincent Procaccio, Dominique Bonneau, Guy Lenaers, Gilles Simard, Delphine Mirebeau-Prunier, Juan Manuel Chao de la Barca, Pascal Reynier. Metabolomics reveals highly regional specificity of cerebral sexual dimorphism in miceProgress in Neurobiology 2019, https://doi.org/10.1016/j.pneurobio.2019.101698

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