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Provedor de dados:  77
País:  Chile
Título:  Localization of Cannabinoid Receptor 1 (CB1) in Submandibular and Sublingual Salivary Glands of Mice throughout Postnatal Development
Autores:  Hipkaeo,Wiphawi
Watanabe,Masahiko
Kondo,Hisatake
Data:  2015-06-01
Ano:  2015
Palavras-chave:  Cannabinoid receptor 1
Immunohistochemistry
Submandibular gland
Sublingual gland
Postnatal mice
Resumo:  In view of the fact that human marijuana users often show dry mouth symptom, the present study was attempted to examine the localization of CB1, which was originally identified in brain, in the submandibular and sublingual salivary glands of postnatal developing male mice by immunohistochemistry. In submandibular gland, CB1-immunoreactivity was positive in a majority of acinar cells in forms of granular appearance in their apical cytoplasm, while it was negative in the ducts at newborn stage. The immunoreactivity decreased in the acinar cells at P1W and no immunoreactivity was detected in the acinar cells at P3W and thereafter. The immunoreactivity was positive in ductal cells at P3W and it remained positive thereafter until P8W stage. The immunoreaction was distinct on the apical plasmalemma of the intercalated ductal cells, while it was distinct on the basal plasmalemma of the granular convoluted ductal cells. The enhanced immunostaining on the lateral plasmalemma of the granular ductal cells was discerned only on P6W. In sublingual gland, CB1-immunoreactivity was detected in the demilune acinar cells and ductal cells only on P4W. Furthermore, CB1-immunoreactivity was shown to occur in the salivary ganglionic neurons, suggesting the CB1-inhibitory action in the saliva secretion through the parasympathetic nervous transmission.
Tipo:  Journal article
Idioma:  Inglês
Identificador:  http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200044
Editor:  Sociedad Chilena de Anatomía
Formato:  text/html
Fonte:  International Journal of Morphology v.33 n.2 2015
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