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| Signorini-Souza,Isadora de Lourdes; Palacio-Cortés,Angela Maria; Beltrão-Graboski,Tiago; Richardi,Vinicius Sobrinho; Fávaro,Luis Fernando; Navarro-Silva,Mário Antônio. |
| Abstract Histological effects of polybrominated diphenyl ethers (PBDEs) were observed in Chironomus sancticaroli larvae which underwent acute exposure. 2,2′,4-triBDE (BDE-17), 2,2′,4,4′-tetraBDE (BDE-47) and 2,2′,4,4′,5-pentaBDE (BDE-99) were evaluated at 0.5, 2.0 and 20 μg L-1. Cytoplasm vacuolisation of oenocytes was observed in the larvae exposed to BDE-17 and BDE-47. Cuénot cells were disrupted at the brush border as an effect of the three evaluated congeners highlighting BDE-47 at 2.0 μg L-1; 60% of larvae displayed this disruption. The midgut showed changes in the morphology of apex cells located next to the lumen of region I exposed to BDE-17 and BDE-47, while BDE-99 induced a narrowing of the lumen diameter. Significant cytoplasm vacuolisation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cuénot cells; Flame retardants; Midge; Oenocytes; Salivary glands. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100204 |
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| Toomsan,Yanyong; Chomphoo,Surang; Pakkarato,Sawetree; Watanabe,Masahiko; Kondo,Hisatake; Hipkaeo,Wiphawi. |
| According to recent studies, it is highly possible that the occurrence of vesicular inhibitory amino acid transporter (VIAAT) is a good marker of GABA-signaling not only in the brain, but also in extra-brain tissue cells containing GABA and GAD. In view of this, the present study was attempted to localize VIAAT-immunoreactivity in the submandibular gland of mice. In the present study, the submandibular glands of male mice at various postnatal developmental stages were examined for detailed localization of VIAAT-immunoreactivity in immunohistochemistry at light microscopic level. The immunoreactivity for VIAAT was localized in epithelial cells of proximal and distal excretory ducts with the striated portion more intensely immunopositive at young postnatal... |
| Tipo: Journal article |
Palavras-chave: VIATT-immunoreactivity; GABA; Salivary glands; Arteriolar smooth muscle. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100019 |
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| Lamy,E.; Baptista,E.S.; Coelho,A.V.; Silva,F. Capela e. |
| In order to study the effects of tannins at histomorphological level, mice were either fed with three structurally different types of tannins (tannic acid, chestnut, and quebracho) or treated with isoproterenol, during 10 days. Acini of parotid and submandibular glands increased significantly, being the increase higher for parotid compared to submandibular glands, and higher in the quebracho compared with the other tannin groups. Sublingual acinar size also increased after tannin consumption, by opposition to isoproterenol-treated animals. The results present evidences that the effects produced by tannins are dependent on their structure. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mice; Condensed tannin; Hydrolysable tannin; Isoproterenol; Salivary glands; Histology. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000400012 |
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| Queiroz,P.J.B.; Queiroz,T.D.; Magalhães,P.L.; Borges,N.C.; Martins,D.B.; Moura,V.M.B.D.; Silva,L.A.F.. |
| ABSTRACT A 9-year-old Girolando dairy cow, weighing 400kg, with a history of increased volume in the right parotid region, which extended to the submandibular region, was assisted. Fine needle aspiration cytology was performed, and the cytological findings were consistent with malignant neoplasm of epithelial origin (carcinoma). Because of the unfavorable prognosis, the animal was euthanized and submitted to an anatomopathological examination. Samples of the increased parotid and affected lymph nodes were collected for histopathological evaluation. The microscopic changes were accentuated features of anaplasia, moderate cell proliferation, atypical mitotic figures, and necrosis. Stroma ranged from delicate to scirrhous, and the tumor boundaries were not... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Cattle; Cytology; Immunohistochemistry; Malignant neoplasms; Salivary glands. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000300758 |
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