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dc.contributor.author
Filippa, Veronica Palmira
dc.contributor.author
Acosta, Mariano
dc.contributor.author
Mohamed, Fabian Heber
dc.date.available
2024-09-05T14:41:30Z
dc.date.issued
2012-06-28
dc.identifier.citation
Filippa, Veronica Palmira; Acosta, Mariano; Mohamed, Fabian Heber; Cellular associations of pituitary gonadotrophs in a rodent (Lagostomus maximus maximus) with photoperiod-dependent reproduction; Elsevier; Tissue & Cell; 44; 6; 28-6-2012; 351-357
dc.identifier.issn
0040-8166
dc.identifier.uri
http://hdl.handle.net/11336/243666
dc.description.abstract
The morphological characteristics and percentage of the cellular associations between gonadotrophs (LH- and FSH-secreting cells) and other cellular types were studied in pituitary pars distalis of adult male viscachas (Lagostomus maximus maximus) by double immunohistochemistry using specific anti-bodies to LH, FSH, PRL, GH, ACTH, TSH and S-100 protein (by folliculostellate cells; FSC), during long and short photoperiods. Bihormonal gonadotrophs were observed in ventro-medial and dorsal regions, interspersed between monohormonal gonadotrophs, and their number increased in short photoperiod. LH- and FSH-gonadotrophs were found around lactotrophs, enclosed by somatotrophs in the dorsal region, and associated with irregular corticotrophs. Gonadotrophs and thyrotrophs were associated along blood vessels and follicular structures. The cytoplasmic prolongations of FSC were in contact with both gonadotrophs. The percentage of LH-FSH, LH-ACTH, LH-FSC, FSH-LH, FSH-PRL, FSH-GH, FSH-ACTH, FSH-TSH and FSH-FSC associations decreased, whereas LH-PRL increased in short as compared to long photoperiod. The most abundant associations were LH-GH and LH-TSH during long photoperiod, but LH-GH and LH-PRL during short photoperiod. FSH-GH and FSH-PRL were the most numerous associations, and LH-FSC and FSH-FSC were the less abundant ones in both photoperiods. These results provide the morphological evidence for specific cellular associations between gonadotrophs and other cellular types of viscacha pituitary.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
LAGOSTOMUS
dc.subject
GONADOTROPHS
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CELLULAR ASSOCIATIONS
dc.subject
PHOTOPERIOD
dc.subject
IMMUNOHISTOCHEMISTRY
dc.subject.classification
Anatomía y Morfología
dc.subject.classification
Medicina Básica
dc.subject.classification
CIENCIAS MÉDICAS Y DE LA SALUD
dc.title
Cellular associations of pituitary gonadotrophs in a rodent (Lagostomus maximus maximus) with photoperiod-dependent reproduction
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-26T10:49:59Z
dc.journal.volume
44
dc.journal.number
6
dc.journal.pagination
351-357
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Filippa, Veronica Palmira. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
dc.description.fil
Fil: Acosta, Mariano. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
dc.description.fil
Fil: Mohamed, Fabian Heber. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina
dc.journal.title
Tissue & Cell
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.tice.2012.05.003
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0040816612000614
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