Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados ArchiMer (1) Autor Cambon-bonavita, Marie-anne (1) Compere, P (1) Corbari, L (1) Gaill, F (1) Grandjean, F (1) Long, G (1) Zbinden, M (1) Mais... Palavra-chave Biomineralization (1) Deep sea (1) Fe oxides (1) Ferrihydrite (1) Ferrous ions (1) Microbial communities (1) Mid atlantic ridge (1) Minerals (1) Oxidizing bacteria (1) Trophic ecology (1) Mais... Tipo do documento Text (1) Ano 2008 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 25 Primeira ... 1 2 ... Última Propofol pretreatment attenuates lipopolysaccharide-induced acute lung injury in rats by activating the phosphoinositide-3-kinase/Akt pathway BJMBR Zhao,L.L.; Hu,G.C.; Zhu,S.S.; Li,J.F.; Liu,G.J.. The aim of this study was to investigate the effect of propofol pretreatment on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and the role of the phosphoinositide-3-kinase/protein kinase B (PI3K/Akt) pathway in this procedure. Survival was determined 48 h after LPS injection. At 1 h after LPS challenge, the lung wet- to dry-weight ratio was examined, and concentrations of protein, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) in bronchoalveolar lavage fluid (BALF) were determined using the bicinchoninic acid method or ELISA. Lung injury was assayed via lung histological examination. PI3K and p-Akt expression levels in the lung tissue were determined by Western blotting. Propofol pretreatment prolonged survival, decreased the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Acute lung injury; Propofol; Lipopolysaccharide; PI3K/Akt pathway. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001201062 Resistance to Antimicrobial Peptides in Vibrios ArchiMer Destoumieux-garzón, Delphine; Duperthuy, Marylise; Vanhove, Audrey; Schmitt, Paulina; Wai, Sun. Vibrios are associated with a broad diversity of hosts that produce antimicrobial peptides (AMPs) as part of their defense against microbial infections. In particular, vibrios colonize epithelia, which function as protective barriers and express AMPs as a first line of chemical defense against pathogens. Recent studies have shown they can also colonize phagocytes, key components of the animal immune system. Phagocytes infiltrate infected tissues and use AMPs to kill the phagocytosed microorganisms intracellularly, or deliver their antimicrobial content extracellularly to circumvent tissue infection. We review here the mechanisms by which vibrios have evolved the capacity to evade or resist the potent antimicrobial defenses of the immune cells or tissues... Tipo: Text Palavras-chave: Vibrio; Lipopolysaccharide; Outer membrane vesicle; Membrane transporter; Innate immunity; Defensin; Cathelicidin; Bactericidal/permeability-increasing protein. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00276/38767/37308.pdf The effect of bacterial lipopolysaccharide on gastric emptying in rats suffering from moderate renal insufficiency BJMBR Rigatto,S.Z.P.; Collares,E.F.. The objective of the present study was to evaluate the response of rats suffering from moderate renal insufficiency to bacterial lipopolysaccharide (LPS, or endotoxin). The study involved 48 eight-week-old male SPF Wistar rats (175-220 g) divided into two groups of 24 animals each. One group underwent 5/6 nephrectomy while the other was sham-operated. Two weeks after surgery, the animals were further divided into two subgroups of 12 animals each and were fasted for 20 h but with access to water ad libitum. One nephrectomized and one sham-treated subgroup received E. coli LPS (25 µg/kg, iv) while the other received a sterile, pyrogen-free saline solution. Gastric retention (GR) was determined 10 min after the orogastric infusion of a standard saline test... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gastric emptying; Lipopolysaccharide; Endotoxin; Renal insufficiency; Rats. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000400006 The reaction of dental pulp to Escherichia coli lipopolysaccharide and Enterococcus faecalis lipoteichoic acid BJM Oliveira,Laudimar Alves de; Barbosa,Sérgio Valmor. This research evaluates the effects of the lipopolysaccharides (LPS) from Escherichia coli and lipoteichoic acid (LTA) from Enterococcus faecalis on dental pulp. These molecules are components of the Gram-negative and Gram-positive bacteria cell wall, respectively. Ten dogs were used in the experiment. Inoculation in surgically opened pulp and coronal restoration with glass ionomer was the method chosen. The evaluation times were 1, 7, 15, 30 and 60 days. The results showed that the LPS and LTA, at 150 µg/ml, produced a negative interference in the pulp leading to destruction. LTA caused less damage than LPS. Tipo: Info:eu-repo/semantics/article Palavras-chave: Lipopolysaccharide; Endotoxin; Lipoteichoic acid; Dental pulp; Bacteria. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000200018 Total phenolic, flavonoid, alkaloid and iridoid content and preventive effect of Lider-7-tang on lipopolysaccharide-induced acute lung injury in rats BJMBR Erdenechimeg,Ch.; Guiqide,A.; Dejidmaa,B.; Chimedragchaa,Ch.; Purevsuren,S.. Lider-7-tang, a medicine used for the treatment of respiratory diseases especially pneumonia and fever in Mongolian Traditional Medicine, was selected for this phytochemical and pharmacological study. The objectives of the study were to determine total biological active substances and analyze the effects of Lider-7-tang treatment in rats with acute lung injury (ALI). Quantitative determination of the total active constituents (phenolic, flavonoid, iridoid and alkaloid) of the methanol extract of Lider-7-tang was performed using Folin-Ciocalteu reagent, aluminum chloride reagent, Trim-Hill reagent, and Bromocresol green reagent, respectively. A total of fifty 8–10-week-old male Wistar rats (200–240 g) were randomized into three groups: control group,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Traditional medicine; Lider-7-tang; Phenolic; Acute lung injury; Lipopolysaccharide. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200609 Registros recuperados: 25 Primeira ... 1 2 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco