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| Registros recuperados: 10 | |
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| LÓPEZ-SOLÍS,REMIGIO; PUENTE,MARGARITA; DURÁN,VIVIANA; MORALES-BOZO,IRENE; KEMMERLING,ULRIKE; PARDO,RODRIGO; WENK,CAROLINA. |
| Mouse salivary secretion provoked by single or multiple oral administrations of the cholinergic agent pilocarpine was characterized. An accessory ad hoc device, manipulated by a single operator, was used to collect saliva from various mice simultaneously. A single challenge by pilocarpine in the range 40-400 µg provoked a dose-dependent secretory response. The secretory response lasted for about 40 minutes and was constituted by four clearly defined stages, namely: lag (5-10 min), maximal flow (10 min), slowering (15-20 min) and postsecretory rest. In this response, usual parameters were: maximal flow rate, 30-40 µl/min; total volume of saliva, 250-350 µl/mouse and total salivary protein, about 700 µg/mouse. Temporal desensitization of the secretory... |
| Tipo: Journal article |
Palavras-chave: Mouse; Saliva; Secretion; Pilocarpine; Polypeptides. |
| Ano: 2001 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000000023 |
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| RODRIGUES,JEAN FÁBIO TORRES; FERRO,ELOISA AMÁLIA VIEIRA. |
| This study describes changes in the pattern of microridges, keratinization, desquamation, secretion, leukocyte infiltration as well as the increasing number of mitotic cells in the vaginal epithelium of Calomys callosus during the oestrous cycle. In proestrus, the epithelium is squamous and stratified with a fine layer of keratin and it is overlain by secretory prismatic cells. In oestrous, the epithelium is squamous, stratified and keratinized. In metoestrus, the epithelium is squamous and stratified with loss of the keratin layer. A leukocyte infiltration, extending from the base to the surface of the epithelial layer is also present. At the end of this phase, the surface cells start to become PAS-positive. In dioestrus, the epithelium is stratified. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oestrous cycle; Vaginal epithelium; Calomys callosus; Keratinization; Secretion; Leukocyte infiltration. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081998000300018 |
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| Schumann,Wolfgang; Ferreira,Luis Carlos S.. |
| Attempts to obtain a recombinant protein using prokaryotic expression systems can go from a rewarding and rather fast procedure to a frustrating time-consuming experience. In most cases production of heterologous proteins in Escherichia coli K12 strains has remained an empirical exercise in which different systems are tested without a careful insight into the various factors affecting adequate expression of the encoded protein. The present review will deal with E. coli as protein factory and will cover some of the aspects related to transcriptional and translational expression signals, factors affecting protein stability and solubility and targeting of proteins to different cell compartments. Based on the knowledge accumulated over the last decade, we... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Expression vectors; Secretion; Molecular chaperones. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300022 |
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| Haddad,A.. |
| The efficiency and reliability of radioactive fucose as a specific label for newly synthesized glycoproteins were investigated. Young adult male rabbits were injected intravitreally with [3H]-fucose, [3H]-galactose, [3H]-mannose, N-acetyl-[3H]-glucosamine or N-acetyl-[3H]-mannosamine, and killed 40 h after injection. In another series of experiments rabbits were injected with either [3H]-fucose or several tritiated amino acids and the specific activity of the vitreous proteins was determined. Vitreous samples were also processed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and histological sections of retina, ciliary body and lens (the eye components around the vitreous body) were processed for radioautography. The specific... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycoprotein; Fucose; Radioautography; Secretion; Vitreous body. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000200004 |
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| Freitas,D.A.; Leclerc,S.; Miyoshi,A.; Oliveira,S.C.; Sommer,P.S.M.; Rodrigues,L.; Correa Junior,A.; Gautier,M.; Langella,P.; Azevedo,V.A.; Le Loir,Y.. |
| Lactococcus lactis, the model lactic acid bacterium, is a good candidate for heterologous protein production in both foodstuffs and the digestive tract. We attempted to produce Streptomyces tendae antifungal protein 1 (Afp1) in L. lactis with the objective of constructing a strain able to limit fungal growth. Since Afp1 activity requires disulfide bond (DSB) formation and since intracellular redox conditions are reportedly unfavorable for DSB formation in prokaryotes, Afp1 was produced as a secreted form. An inducible expression-secretion system was used to drive Afp1 secretion by L. lactis; Afp1 was fused or not with LEISSTCDA, a synthetic propeptide (LEISS) that has been described to be a secretion enhancer. Production of Afp1 alone was not achieved, but... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactococcus lactis; Antifungal protein; Secretion; Streptomyces tendae antifungal protein 1. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001100004 |
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| Registros recuperados: 10 | |
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