Macro- and microstructure of the superior cervical ganglion in dogs, cats and horses during maturation

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dc.contributor.authorFioretto, Emerson Ticona
dc.contributor.authorde Abreu, Rogerio Navarro
dc.contributor.authorde Souza Castro, Marcelo Fernandes
dc.contributor.authorGuidi, Wanderley Lima
dc.contributor.authorCoppi Maciel Ribeiro, Antonio Augusto
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUNIFEOB Fundação Ensino Octavio Bastos
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:22:55Z
dc.date.available2014-05-20T15:22:55Z
dc.date.issued2007-01-01
dc.description.abstractThe superior cervical ganglion (SCG) provides sympathetic input to the head and neck, its relation with mandible, submandibular glands, eyes (second and third order control) and pineal gland being demonstrated in laboratory animals. In addition, the SCG's role in some neuropathies can be clearly seen in Horner's syndrome. In spite of several studies published involving rats and mice, there is little morphological descriptive and comparative data of SCG from large mammals. Thus, we investigated the SCG's macro- and microstructural organization in medium (dogs and cats) and large animals (horses) during a very specific period of the post-natal development, namely maturation (from young to adults). The SCG of dogs, cats and horses were spindle shaped and located deeply into the bifurcation of the common carotid artery, close to the distal vagus ganglion and more related to the internal carotid artery in dogs and horses, and to the occipital artery in cats. As to macromorphometrical data, that is ganglion length, there was a 23.6% increase from young to adult dogs, a 1.8% increase from young to adult cats and finally a 34% increase from young to adult horses. Histologically, the SCG's microstructure was quite similar between young and adult animals and among the 3 species. The SCG was divided into distinct compartments (ganglion units) by capsular septa of connective tissue. Inside each ganglion unit the most prominent cellular elements were ganglion neurons, glial cells and small intensely fluorescent cells, comprising the ganglion's morphological triad. Given this morphological arrangement, that is a summation of all ganglion units, SCG from dogs, cats and horses are better characterized as a ganglion complex rather than following the classical ganglion concept. During maturation (from young to adults) there was a 32.7% increase in the SCG's connective capsule in dogs, a 25.8% increase in cats and a 33.2% increase in horses. There was an age-related increase in the neuronal profile size in the SCG from young to adult animals, that is a 1.6-fold, 1.9-fold and 1.6-fold increase in dogs, cats and horses, respectively. on the other hand, there was an age-related decrease in the nuclear profile size of SCG neurons from young to adult animals (0.9-fold, 0.7-fold and 0.8-fold in dogs, cats and horses, respectively). Ganglion connective capsule is composed of 2 or 3 layers of collagen fibres in juxtaposition and, as observed in light microscopy and independently of the animal's age, ganglion neurons were organised in ganglionic units containing the same morphological triad seen in light microscopy. Copyright (c) 2007 S. Karger AG, Basel.en
dc.description.affiliationUniv São Paulo, Coll Vet Med, Dept Surg, São Paulo, Brazil
dc.description.affiliationUNIFEOB Fundação Ensino Octavio Bastos, Sao Joao da Boa Vista, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Hlth Sci, São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Hlth Sci, São Paulo, Brazil
dc.format.extent129-140
dc.identifierhttp://dx.doi.org/10.1159/000103015
dc.identifier.citationCells Tissues Organs. Basel: Karger, v. 186, n. 2, p. 129-140, 2007.
dc.identifier.doi10.1159/000103015
dc.identifier.issn1422-6405
dc.identifier.urihttp://hdl.handle.net/11449/33818
dc.identifier.wosWOS:000248656100005
dc.language.isoeng
dc.publisherKarger
dc.relation.ispartofCells Tissues Organs
dc.relation.ispartofjcr1.275
dc.relation.ispartofsjr0,572
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectsuperior cervical ganglionpt
dc.subjectmaturationpt
dc.subjectpost-natalpt
dc.subjectdevelopmentpt
dc.titleMacro- and microstructure of the superior cervical ganglion in dogs, cats and horses during maturationen
dc.typeArtigo
dcterms.licensehttp://www.karger.com/Services/RightsPermissions
dcterms.rightsHolderKarger

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