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- W1998518744 abstract "Many cortical and prefrontal functions show sex differences in their development, adult capacity, and dysfunction in disorders like schizophrenia. Correlations between circulating gonadal hormones and certain prefrontal functions have also been identified in humans and experimental animal models. Although multiple mechanisms may be involved, such hormone sensitivities/sex differences could be related to gonadal steroid actions on another regulator of cortical/prefrontal cortical function, the mesocortical dopamine system. Thus, although it is well known that perturbations in prefrontal dopamine signaling induce behavioral deficits, it is also known that several endpoints of these afferents are sensitive to gonadal steroids and/or are sexually dimorphic. This study explored possible substrates for this in two ways: by comparing the distributions of immunoreactivity for intracellular estrogen (alpha and beta) and androgen receptors among retrogradely labeled dopaminergic and nondopaminergic mesocortical neurons projecting to prefrontal, premotor, and primary motor cortices, areas in which male rat dopamine axons are differentially hormone-sensitive; and by comparing anatomical data in males and females. These analyses revealed region-, cell-, and sex-specific specializations in receptor localization that paralleled established patterns of mesocortical hormone sensitivity, including the androgen sensitivity of dopamine axons and dopamine-dependent functions in prefrontal cortex. It was also found that the proportions of dopamine neurons making up mesocortical projections were approximately 30% in males, whereas in females, significantly more constituent cells were dopaminergic. Together, these features may be part of the neurobiology giving mesocortical afferents their hormone sensitivities and/or sex differences in physiology, function, and dysfunction in disease." @default.
- W1998518744 created "2016-06-24" @default.
- W1998518744 creator A5000318351 @default.
- W1998518744 creator A5026943376 @default.
- W1998518744 date "2008-09-17" @default.
- W1998518744 modified "2023-09-30" @default.
- W1998518744 title "Region and Sex Differences in Constituent Dopamine Neurons and Immunoreactivity for Intracellular Estrogen and Androgen Receptors in Mesocortical Projections in Rats" @default.
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- W1998518744 doi "https://doi.org/10.1523/jneurosci.2637-08.2008" @default.
- W1998518744 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2613180" @default.
- W1998518744 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/18799684" @default.
- W1998518744 hasPublicationYear "2008" @default.
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