title: [Sexual dimorphism in human medial raphe nuclei. Preliminary study with the Golgi cox method].
abstract: Brains from a female and a male newborn who died from an asphictic syndrome were examined to study the cytoarchitecture of the median raphe nucleus using the Golgi-Cox and morphometric methods. This nucleus is part of the serotonergic system. The morphometric analysis showed in the female newborn a significant increase of neurons. Also she had a higher proportion of ovoid and multipolar cells and a lower proportion of fusiform cells than the newborn male. Our findings suggest that this neuronal distribution may be the anatomical substrate for a serotonergic specific system in each sex.
authors.affiliation: Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile. mcordero@machi.med.uchile.cl
authors.forename: M E
authors.initials: ME
authors.lastname: Cordero
authors.forename: C Y
authors.initials: CY
authors.lastname: Valenzuela
authors.forename: R
authors.initials: R
authors.lastname: Torres
mesh_terms: D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009474:Neurons / Q000166:cytology*; D011903:Raphe Nuclei / Q000166:cytology*; D012727:Sex Characteristics; D013194:Staining and Labeling / Q000379:methods
vernacular_title: Dimorfismo sexual en el núcleo mediano del rafe humano. Estudio preliminar con el método de Golgi cox.