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Localization of Total Proteins and Lactate Dehydrogenase in Hamster Epididymis International Journal of Morphology
Beu,Celia C. L.; Orsi,Antonio M; Domeniconi,Raquel F; Novelli,Ethel L. B..
The concentration of total protein measured by photocolorimetric methodology and reported as units per 100 mg of tissue decreased from the initial segment to the cauda epididymidis of the Golden hamster, being significant the numeric difference observed between these two regions. This observation was related with an increased synthesis and secretion of proteins to the lumen in proximal segments of the epididymidis duct, mainly in initial segment, as proposed for other rodents. LDH activity was higher in initial segment and distal cauda than in the caput and corpus epididymidis, although no significant differences in mean values had been observed. The high LDH activity observed in initial segment and cauda epididymidis of hamster had been related to an...
Tipo: Journal article Palavras-chave: Total protein; LDH; Tissue localization; Epididymis; Hamster.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200003
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Structure and Histophysiological Considerations on the Arterial Wall of the Dog International Journal of Morphology
Orsi,Antonio M; Domeniconi,Raquel F; Mello,Josiane M. de; Spilla,Caio S. G.
This paper described the architecture of the dog aortic arterial wall focused in the ascendant; thoracic descendent, and abdominal parts of the aorta. Furthermore, in this study we analyzed the wall structure of the right external iliac artery and the left vertebral artery of dog aiming to compare their architectural patterns with the aortic wall mainly in abdominal aortic part, which was structured by a mixed muscular and connective matrix equilibrated elements. The variables analyzed were the thickness of each mural layer; the number of elastic lamellae, mainly localized into the medial layer structure, and the diameters of each aortic segment. The aortic structure showed a typical elastic pattern in the ascendant and descendant thoracic parts, but in...
Tipo: Journal article Palavras-chave: Artery; Mural structure; Histophysiology; Dog.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300013
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Vas Deferens Surface Epithelium of Agouti paca: Fine Structural Features International Journal of Morphology
Orsi,Antonio M; Simões,Karina; Domeniconi,Raquel F; da Cruz,Claudinei; Machado,Márcia R. F; Filho,Joffre G.
The surface epithelium of the vas deferens of Agouti paca, a wild and large South American rodent, was basically formed by principal and basal cells being only the principal cells related to endocytosis processes and also secretion taking base on their cytoplasmic ultrastructural features. Principal cell of vas deferens epithelium were characterized mainly by presence of vesicles with several shapes, sizes and internalized content at their apical cytoplasm occurring smaller pits and pale small vesicles seen next to the apical brush border of microvillus. Moreover, coated vesicles, smooth surface vesicles and great vesicles; multivesicular bodies, endosomes and lysosomes were seen. Presence of an apocrine secretory apparatus was also viewed, showing apical...
Tipo: Journal article Palavras-chave: Vas deferens epithelium; Fine structure; Histophysiology; South American rodent.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000100016
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