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	Provedor de dados BJMBR (1) BJB (1) Autor JUNQUEIRA,L. C. U. (1) KUEHNE,B. (1) Salomão,L.C. (1) Schwartz,C.A. (1) Schwartz,E.F. (1) Stucchi-Zucchi,A. (1) Mais... Palavra-chave Siphonops (2) Channel-forming toxins (1) Gymnophiona (1) Hemolysin (1) Ion channel (1) Lung (1) Skin secretion (1) Structure (1) Toxin (1) Trachea (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2003 (1) 2000 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Histology of the trachea and lung of Siphonops annulatus (Amphibia, Gymnophiona) BJB KUEHNE,B.; JUNQUEIRA,L. C. U.. The structure of the trachea and lung of Siphonops annulatus was studied in ten specimens of routinely fed animals. The trachea is constituted mainly by incomplete cartilage rings lined by a respiratory epithelium (ciliated and mucous cells) with variable morphology according to the region observed. A rich vascularization of this organ suggests its participation in blood-air gas exchange. The right lung in this species is developed and the left one is atrophied. This organ is constituted mainly by longitudinal septa formed by connective tissue, smooth muscle cells and blood capillaries. These structures are covered by pneumocytes of one type only, which present cytoplasmic particles that have been related with surfactant activity described in the lung of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gymnophiona; Siphonops; Trachea; Lung; Structure. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100019 Skin secretion of Siphonops paulensis (Gymnophiona, Amphibia) forms voltage-dependent ionic channels in lipid membranes BJMBR Schwartz,E.F.; Stucchi-Zucchi,A.; Schwartz,C.A.; Salomão,L.C.. The effect of the skin secretion of the amphibian Siphonops paulensis was investigated by monitoring the changes in conductance of an artificial planar lipid bilayer. Skin secretion was obtained by exposure of the animals to ether-saturated air, and then rinsing the animals with distilled water. Artificial lipid bilayers were obtained by spreading a solution of azolectin over an aperture of a Delrin cup inserted into a cut-away polyvinyl chloride block. In 9 of 12 experiments, the addition of the skin secretion to lipid bilayers displayed voltage-dependent channels with average unitary conductance of 258 ± 41.67 pS, rather than nonspecific changes in bilayer conductance. These channels were not sensitive to... Tipo: Info:eu-repo/semantics/other Palavras-chave: Siphonops; Toxin; Channel-forming toxins; Skin secretion; Ion channel; Hemolysin. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000900020 Registros recuperados: 2 Primeira ... 1 ... Última

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