Endotoxin
Mostrando 13-24 de 1562 artigos, teses e dissertações.
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13. Limewater and Polymyxin B Associated with NaOCl for Endotoxin Detoxification in Root Canal with Necrotic Pulp
Resumo Este estudo clínico investigou os efeitos do tratamento endodôntico com uso de diferentes irrigantes (NaOCl + água de cal e NaOCl + polimixina B) e medicação intracanal sobre endotoxinas em dentes com infecção endodôntica primária e presença de lesão periapical visível radiograficamente. Foram selecionados para o estudo trinta e três dent
Braz. Dent. J.. Publicado em: 2016-10
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14. Membrane adsorber for endotoxin removal
RESUMO A superfície de membranas planas de nylon foi modificada utilizando-se bisoxirano como espaçador e poli(álcool vinílico) para recobrimento das membranas. O aminoácido histidina foi utilizado como ligante para endotoxinas, visando à sua aplicação na remoção de endotoxinas a partir de soluções aquosas. São discutidas as etapas de caracteriz
Braz. J. Pharm. Sci.. Publicado em: 2016-03
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15. QMix® irrigant reduces lipopolysacharide (LPS) levels in an in vitro model
AbstractThe presence of endotoxin inside the root canal has been associated with periapical inflammation, bone resorption and symptomatic conditions.Objectives To determine, in vitro, the effect of QMix® and other three root canal irrigants in reducing the endotoxin content in root canals.Material and Methods Root canals of single-rooted teeth were prepared
J. Appl. Oral Sci.. Publicado em: 2015-08
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16. Are bovine teeth a suitable substitute for human teeth in in vitro studies to assess endotoxin load in root canals?
The present study aimed to determine the feasibility of using bovine teeth as a suitable alternative for human teeth, in experiments involving in vitro endotoxin contamination. Twenty bovine central incisors and 20 human single-root premolars had their dental crowns removed and root lengths set at 16 mm. Root canals were prepared up to #60 K-file size and st
Braz. oral res.. Publicado em: 03/07/2015
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17. Exposure of periodontal ligament progenitor cells to lipopolysaccharide from Escherichia coli changes osteoblast differentiation pattern
Periodontal ligament mesenchymal stem cells (PDLMSCs) are an important alternative source of adult stem cells and may be applied for periodontal tissue regeneration, neuroregenerative medicine, and heart valve tissue engineering. However, little is known about the impact of bacterial toxins on the biological properties of PDLSMSCs, including self-renewal, di
J. Appl. Oral Sci.. Publicado em: 2015-04
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18. A titration model for evaluating calcium hydroxide removal techniques
Objective Calcium hydroxide (Ca(OH)2) has been used in endodontics as an intracanal medicament due to its antimicrobial effects and its ability to inactivate bacterial endotoxin. The inability to totally remove this intracanal medicament from the root canal system, however, may interfere with the setting of eugenol-based sealers or inhibit bonding of resin
J. Appl. Oral Sci.. Publicado em: 2015-02
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19. Role of high mobility group box-1 and protection of growth hormone and somatostatin in severe acute pancreatitis
In this study, we investigated the potential role of high-mobility group box 1 (HMGB1) in severe acute pancreatitis (SAP) and the effects of growth hormone (G) and somatostatin (S) in SAP rats. The rats were randomly divided into 6 groups of 20 each: sham-operated, SAP, SAP+saline, SAP+G, SAP+S and SAP+G+S. Ileum and pancreas tissues of rats in each group we
Braz J Med Biol Res. Publicado em: 12/09/2014
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20. Monitoring the effectiveness of root canal procedures on endotoxin levels found in teeth with chronic apical periodontitis
Objective: The aim of this study was to monitor the effectiveness of root canal procedures by using different irrigants and intracanal medication on endotoxin levels found in root canals of teeth with chronic apical periodontitis. Material and Methods: Thirty root canals of teeth with pulpal necrosis associated with periapical lesions were selected and ra
J. Appl. Oral Sci.. Publicado em: 29/07/2014
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21. Mesenteric lymph reperfusion after superior mesenteric artery occlusion shock exacerbates endotoxin translocation in brain
PURPOSE: To determine the role of mesenteric lymph reperfusion (MLR) on endotoxin translocation in brain to discuss the mechanism of brain injury subjected to superior mesenteric artery occlusion (SMAO) shock. METHODS: Twenty-four rats were randomly assigned to MLR, SMAO, MLR+SMAO and sham groups. MLR was performed by clamping the mesenteric lymph duct (MLD
Acta Cir. Bras.. Publicado em: 2014-06
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22. Mesenteric lymph reperfusion exacerbates spleen injury caused by superior mesenteric artery occlusion shock
The intestinal lymph pathway plays an important role in the pathogenesis of organ injury following superior mesenteric artery occlusion (SMAO) shock. We hypothesized that mesenteric lymph reperfusion (MLR) is a major cause of spleen injury after SMAO shock. To test this hypothesis, SMAO shock was induced in Wistar rats by clamping the superior mesenteric art
Braz J Med Biol Res. Publicado em: 15/04/2014
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23. Edaravone protects endotoxin-induced liver injury by inhibiting apoptosis and reducing proinflammatory cytokines
Studies have shown that edaravone may prevent liver injury. This study aimed to investigate the effects of edaravone on the liver injury induced by D-galactosamine (GalN) and lipopolysaccharide (LPS) in female BALB/c mice. Edaravone was injected into mice 30 min before and 4 h after GalN/LPS injection. The survival rate was determined within the first 24 h.
Braz J Med Biol Res. Publicado em: 29/01/2014
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24. Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium
In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman design used to evaluate the effects of eight medium components on delta-endotoxin production showed that starch, soya bean and sodium chl
Braz. J. Microbiol.. Publicado em: 2013-09