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| Viana,Diego Carvalho; Rui,Leandro Almeida; Santos,Amilton Cesar dos; Miglino,Maria Angélica; Assis Neto,Antônio Chaves de; Araujo,Lianne Polliane Fernandes; Oliveira,Antonia Santos; Sousa,Alana Lislea. |
| This study aimed to characterize the morphology of the vas deferens ofKinosteron scorpioides by macroscopic and microscopic analysis. Were used 20 adult male jurarás collected at regular intervals during the year and divided into four experimental groups in the rainy and dry seasons, being processed for light microscopy, scanning electron microscopy and transmission electron microscopy. Morphometry for tubular and luminal diameters and epithelial height were also performed. On rainy season, vas deferens presented pseudostratified epithelium with cylindrical cells, spermatozoids and milky fluid in the lumen, with cytoplasmic organelles and lipid vesicles. On dry season, epithelium was pseudostratified with cuboid cells, with cellular debris and no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Kinosternon; Reproduction; Vas deferens; Morphometry; Ultrastructural. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300114 |
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| Campos,M.; Morais,P.L.; Pupo,A.S.. |
| Gonadal hormones regulate the expression of alpha1-adrenoceptor subtypes in several tissues. The present study was carried out to determine whether or not cyproterone acetate, an anti-androgenic agent, regulates the alpha1-adrenoceptor subtypes that mediate contractions of the rat vas deferens in response to noradrenaline. The actions of subtype selective alpha1-antagonists were investigated in vas deferens from control and cyproterone acetate-treated rats (10 mg/day, sc, for 7 days). Prazosin (pA2 ~9.5), phentolamine (pA2 ~8.3) and yohimbine (pA2 ~6.7) presented competitive antagonism consistent with activation of alpha1-adrenoceptors in vas deferens from both control and treated rats. The pA2 values estimated for WB 4101 (~9.5), benoxathian (~9.7),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alpha1-adrenoceptors; Vas deferens; Cyproterone acetate. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100015 |
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