Dioxygenase
Mostrando 1-12 de 639 artigos, teses e dissertações.
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1. Indoleamine-2,3-dioxygenase-related anti-inflammatory effects of 3-aminobenzamide and infliximab in experimental colitis
SUMMARY OBJECTIVE: This study aimed to investigate the presence of indoleamine-2,3-dioxygenase and bacterial translocation after the administration of 3-aminobenzamide and infliximab in the TNBS model of rat colitis. METHODS: The study group was divided into five categories as follows: group 1: (control), group 2: colitis+saline, group 3: colitis+3-aminobe
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. The Incidence of Transient Neonatal Tyrosinemia Within a Mexican Population
Abstract Transient neonatal tyrosinemia (TNT) is a form of hypertyrosinemia produced by the immaturity of 4-hydroxyphenylpyruvate dioxygenase (4-HPPD), a high intake of phenylalanine and tyrosine, and a relative ascorbic acid deficiency. Our objectives are to determine the incidence of TNT in Mexican newborns and to correlate it based on their sex, gestation
J. inborn errors metab. screen.. Publicado em: 16/05/2019
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3. Characterization of dioxygenases and biosurfactants produced by crude oil degrading soil bacteria
ABSTRACT Role of microbes in bioremediation of oil spills has become inevitable owing to their eco friendly nature. This study focused on the isolation and characterization of bacterial strains with superior oil degrading potential from crude-oil contaminated soil. Three such bacterial strains were selected and subsequently identified by 16S rRNA gene sequen
Braz. J. Microbiol.. Publicado em: 2017-12
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4. Degradation of monoaromatics by Bacillus pumilus MVSV3
ABSTRACT Monoaromatics, such as benzene, toluene, ethylbenzene and xylene (BTEX), are simple aromatic compound that are highly toxic due to their high solubility nature. Many chemical and physical methods for their degradation and breakup into nontoxic products are available, but still use of microorganism is preferred over these processes. In this present s
Braz. arch. biol. technol.. Publicado em: 22/06/2017
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5. Phenol degradation and genotypic analysis of dioxygenase genes in bacteria isolated from sediments
Abstract The aerobic degradation of aromatic compounds by bacteria is performed by dioxygenases. To show some characteristic patterns of the dioxygenase genotype and its degradation specificities, twenty-nine gram-negative bacterial cultures were obtained from sediment contaminated with phenolic compounds in Wuhan, China. The isolates were phylogenetically d
Braz. J. Microbiol.. Publicado em: 2017-06
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6. Vascular endothelial growth factor-A enhances indoleamine 2,3-dioxygenase expression by dendritic cells and subsequently impacts lymphocyte proliferation
Dendritic cells (DCs) are antigen (Ag)-presenting cells that activate and stimulate effective immune responses by T cells, but can also act as negative regulators of these responses and thus play important roles in immune regulation. Pro-angiogenic vascular endothelial growth factor (VEGF) has been shown to cause defective DC differentiation and maturation.
Mem. Inst. Oswaldo Cruz. Publicado em: 09/10/2013
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7. The effects of trace elements, cations, and environmental conditions on protocatechuate 3,4-dioxygenase activity
Phenanthracene is a highly toxic organic compound capable of contaminating water and soils, and biodegradation is an important tool for remediating polluted environments. This study aimed to evaluate the effects of trace elements, cations, and environmental conditions on the activity of the protocatechol 3,4-dioxygenase (P3,4O) enzyme produced by the isolate
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-04
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8. Properties of catechol 1,2-dioxygenase in the cell free extract and immobilized extract of Mycobacterium fortuitum
Polycyclic aromatic hydrocarbons (PAH) are carcinogenic compounds which contaminate water and soil, and the enzymes can be used for bioremediation of these environments. This study aimed to evaluate some environmental conditions that affect the production and activity of the catechol 1,2-dioxygenase (C12O) by Mycobacterium fortuitum in the cell free and immo
Braz. J. Microbiol.. Publicado em: 2013
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9. Estudos da correlação estrutura-função da enzima Clorocatecol 1,2-Dioxigenase de Pseudomonas putida / Studies of the structure-function correlation of the chlorocatechol 1,2-dioxygenase enzyme from Pseudomonas putida
O intenso uso de compostos orgânicos em conjunto com o grande avanço industrial culminou em um enorme acúmulo de poluentes orgânicos no meio ambiente. Dentre estes poluentes têm-se destacado a presença de hidrocarbonetos aromáticos altamente tóxicos e resistentes à degradação física, química, fotolítica e biológica. Desta maneira, uma nova for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/02/2012
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10. Enzymatic activity of catechol 1,2-dioxygenase and catechol 2,3-dioxygenase produced by Gordonia polyisoprenivorans
This study aimed to evaluate the environmental conditions for enzyme activity of catechol 1,2-dioxygenase (C1,2O) and catechol 2,3-dioxygenase (C2,3O) produced by Gordonia polyisoprenivorans in cell-free and immobilized extracts. The optimum conditions of pH, temperature, time course and effect of ions for enzyme activity were determined. Peak activity of C1
Quím. Nova. Publicado em: 2012
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11. Nível de expressão tumoral da indoleamine 2,3-dioxigenase (IDO) como marcador biológico e preditor de metástase em pacientes com tumor carcinoide típico broncopulmonar / Tumor Expression Level of Indoleamine 2,3 dioxygenase as Biological Marker and Metastasis Predictor in Patients with Typical Bronchopulmonary Carcinoid Tumors
Os tumores carcinoides típicos broncopulmonares (TCTB) são considerados neoplasias bem diferenciadas e as menos agressivas dentro do espectro dos tumores neuroendócrinos. Entretanto, metástases linfonodais e hematogênicas tem sido encontradas em número considerável de casos e não existem, até o momento, estudos relacionados aos mecanismos de escape
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2011
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12. Beauveria bassiana: quercetinase production and genetic diversity
Beauveria bassiana genetic diversity and ability to synthesize quercetin 2,3-dioxygenase (quercetinase) were analyzed. B. bassiana isolates, obtained from Brazilian soil samples, produced quercetinase after induction using 0.5 g/L quercetin. B. bassiana ATCC 7159 (29.6 nmol/mL/min) and isolate IP 11 (27.5 nmol/ml/min) showed the best performances and IP 3a (
Brazilian Journal of Microbiology. Publicado em: 2011-03