Salicylate Compounds
Mostrando 13-24 de 57 artigos, teses e dissertações.
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13. Estudo fisico-quimico do transporte de especies quimicas atraves de membranas liquidas hidrofobicas em tempo real
Transport processes of variated chemical species - potassium ions, amino acids and vitamins - through hidrophobic liquid membranes was studied using BLM (bulk liquid membrane) method. UV - Vis spectroscopy was used in all cases to quantify the tranported species. It was not possible to use univariate calibration in cases of simultaneous transport because the
Publicado em: 2000
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14. Construção e avaliação de biossensor amperometrico para salicilato usando salicilato hidroxilase imobilizada em matriz de polipirrol com glutaraldeido
This thesis describes the construction of a biosensor for the salicylate determination in blood serum, based on the enzyme salicylate hydroxylase (EC 1.14.13.1), which was electrochemically immobilized onto a polypyrrole polymeric support with glutaraldehyde, to improve the biosensor lifetime, employing a glassy carbon-working electrode as sensor base. The h
Publicado em: 1999
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15. Expression of the Nitroarene Dioxygenase Genes in Comamonas sp. Strain JS765 and Acidovorax sp. Strain JS42 Is Induced by Multiple Aromatic Compounds
This work reports a genetic analysis of the expression of nitrobenzene dioxygenase (NBDO) in Comamonas sp. strain JS765 and 2-nitrotoluene dioxygenase (2NTDO) in Acidovorax sp. strain JS42. Strains JS765 and JS42 possess identical LysR-type regulatory proteins, NbzR and NtdR, respectively. NbzR/NtdR is homologous to NahR, the positive salicylate-responsive t
American Society for Microbiology.
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16. Potentiation by salicylate and salicyl alcohol of cadmium toxicity and accumulation in Escherichia coli.
The toxicity of Cd2+ in Escherichia coli K-12 was potentiated by salicylate and several related compounds. The efficiency of plating on Luria broth plates was reduced by more than 10(5)-fold when 10 mM salicylate and 200 microM CdCl2 were present simultaneously but was unaffected when either compound was present by itself. Synergistic effects were found at p
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17. Ion Channel-Forming Alamethicin Is a Potent Elicitor of Volatile Biosynthesis and Tendril Coiling. Cross Talk between Jasmonate and Salicylate Signaling in Lima Bean1
Alamethicin (ALA), a voltage-gated, ion channel-forming peptide mixture from Trichoderma viride, is a potent elicitor of the biosynthesis of volatile compounds in lima bean (Phaseolus lunatus). Unlike elicitation with jasmonic acid or herbivore damage, the blend of substances emitted comprises only the two homoterpenes, 4,11-dimethylnona-1,3,7-triene an
American Society of Plant Physiologists.
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18. Common induction and regulation of biphenyl, xylene/toluene, and salicylate catabolism in Pseudomonas paucimobilis.
A strain of Pseudomonas paucimobilis (strain Q1) capable of utilizing biphenyl was isolated from soil. This strain grew not only on substituted biphenyls, but also on salicylate, xylene or toluene or both (xylene/toluene), and substituted benzoates. Evidence is presented that the catabolism of biphenyl, xylene/toluene, and salicylate is regulated by a common
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19. Renal accumulation of salicylate and phenacetin: possible mechanisms in the nephropathy of analgesic abuse
Since either aspirin or phenacetin might be causative in the nephropathy of analgesic abuse, studies were designed to examine the renal accumulation and distribution of the major metabolic products of these compounds, salicylate and N-acetyl-p-aminophenol (APAP) respectively, in dogs. Nineteen hydropenic animals were studied, of which seven were given phenac
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20. Salicylate induction of antibiotic resistance in Escherichia coli: activation of the mar operon and a mar-independent pathway.
Since the growth of wild-type Escherichia coli in salicylate results in a multiple antibiotic resistance phenotype similar to that of constitutive mutants (Mar) of the chromosomal mar locus, the effect of salicylate on the expression of the marRAB operon was investigated. The amount of RNA hybridizing with a mar-specific DNA probe was 5 to 10 times higher in
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21. Penetration of naproxen and salicylate into inflammatory exudates in the rat.
Acute inflammation was induced in rats by subcutaneous implantation of plastic sponges, and the penetration of salicylate and naproxen into the inflammatory exudate was studied after oral dosing with these compounds. The penetration of intravenously administered 22Na and 125I-albumin was also studied. It was found that salicylate and 22Na penetrated very rap
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22. Salicylate induces an antibiotic efflux pump in Burkholderia cepacia complex genomovar III (B. cenocepacia)
An antibiotic efflux gene cluster that confers resistance to chloramphenicol, trimethoprim, and ciprofloxacin has been identified in Burkholderia cenocepacia (genomovar III), an important cystic fibrosis pathogen. Five open reading frames have been identified in the cluster. There is apparently a single transcriptional unit, with llpE encoding a lipase-like
American Society for Clinical Investigation.
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23. Action of salicylate on membrane capacitance of outer hair cells from the guinea-pig cochlea.
1. The effect of salicylate on membrane capacitance and intracellular pH has been measured in isolated outer hair cells (OHCs) during whole cell recording. Cell membrane capacitance was measured using a lock-in amplifier technique. 2. Salicylate applied in the bath reduced the fast charge movement, equivalent to a voltage-dependent membrane capacitance, pres
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24. Catabolism of aromatic acids in Trichosporon cutaneum.
Trichosporon cutaneum readily metabolized protocatechuate, homoprotocatechuate, and gentisate, but lacked ring fission dioxygenases for these compounds. Benzoic, salicylic, 2,3-dihydroxybenzoic, and gentisic acids were converted into beta-ketoadipic acid before entry into the Krebs cycle. Benzoic acid gave rise successively to 4-hydroxybenzoic acid, protocat