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quercetin 3 glucuronide/възпаление
Линкът е запазен в клипборда
Страница 1 от 17 резултата
Effect of quercetin and its metabolites isorhamnetin and quercetin-3-glucuronide on inflammatory gene expression: role of miR-155.
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In the present study the effect of quercetin and its major metabolites quercetin-3-glucuronide (Q3G) and isorhamnetin on inflammatory gene expression was determined in murine RAW264.7 macrophages stimulated with lipopolysaccharide. Quercetin and isorhamnetin but not Q3G significantly decreased mRNA
Quercetin, but not its metabolite quercetin-3-glucuronide, exerts prophylactic immunostimulatory activity and therapeutic antiinflammatory effects on lipopolysaccharide-treated mouse peritoneal macrophages ex vivo.
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This study investigated the prophylactic or therapeutic effects of quercetin (Q) and its metabolite quercetin-3-glucuronide (Q3G) on lipopolysaccharide (LPS)-induced inflammation in mouse peritoneal macrophages ex vivo. Changes in pro- and antiinflammatory cytokine secretion profiles were
Quercetin oppositely regulates insulin-mediated glucose disposal in skeletal muscle under normal and inflammatory conditions: The dual roles of AMPK activation.
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METHODS
Quercetin is a dietary flavonoid whose role in the regulation of the activity of insulin remains controversial. Our study aimed to investigate how quercetin and its major metabolite quercetin-3-glucuronide (Q-3-G) regulate insulin-mediated glucose disposal in skeletal muscle under normal and
Quercetin intraperitoneal administration ameliorates lipopolysaccharide-induced systemic inflammation in mice.
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OBJECTIVE
The purpose of this study was to unravel pharmacological effects of quercetin (Q) on systemic inflammation in septic mice, and compare it to quercetin-3-glucuronide (Q3G), a major metabolite of Q.
METHODS
A suitable sepsis mouse model was first established using lipopolysaccharide (LPS)
Effect of quercetin conjugates on vascular permeability and expression of adhesion molecules.
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Quercetin and its glucosides exist in plant foods and are recovered in human plasma as glucuronide and sulfate conjugates. Quercetin and its conjugates show antioxidant activity in model experiments. It remains obscure, however, whether these conjugates retain these biological functions in vivo. We
Deconjugation kinetics of glucuronidated phase II flavonoid metabolites by beta-glucuronidase from neutrophils.
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Flavonoids are inactivated by phase II metabolism and occur in the body as glucuronides. Mammalian beta-glucuronidase released from neutrophils at inflammatory sites may be able to deconjugate and thus activate flavonoid glucuronides. We have studied deconjugation kinetics and pH optimum for four
Dose-response to 3 months of quercetin-containing supplements on metabolite and quercetin conjugate profile in adults.
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Quercetin, a flavonol in fruits and vegetables, has been demonstrated to have antioxidant, anti-inflammatory and immunomodulating influences. The purpose of the present study was to determine if quercetin, vitamin C and niacin supplements (Q-500 = 500 mg/d of quercetin, 125 mg/d of vitamin C and 5
Effects of physiological quercetin metabolites on interleukin-1β-induced inducible NOS expression.
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Cytokines released by inflammatory cells around the pancreatic islets are implicated in the pathogenesis of diabetes mellitus. Specifically, interleukin-1β (IL-1β) is known to be involved in islet β-cell damage by activation of nuclear factor-κB (NF-κB)-mediated inducible nitric oxide synthase
Quercetin and its principal metabolites, but not myricetin, oppose lipopolysaccharide-induced hyporesponsiveness of the porcine isolated coronary artery.
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OBJECTIVE
Quercetin is anti-inflammatory in macrophages by inhibiting lipopolysaccharide (LPS)-mediated increases in cytokine and nitric oxide production but there is little information regarding the corresponding effect on the vasculature. We have examined the effect of quercetin, and its principal
A comparative study of the effects of quercetin and its glucuronide and sulfate metabolites on human neutrophil function in vitro.
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Exposure of neutrophils to either lipopolysaccharide (LPS) or N-formyl-methionyl-leucyl-phenylalanine (fMLP) is associated with changes in the expression of cell adhesion molecules and elevation of intracellular calcium ions. Although dietary flavonoids are reported to possess anti-inflammatory
Physiologically relevant metabolites of quercetin have no effect on adhesion molecule or chemokine expression in human vascular smooth muscle cells.
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Dietary flavonoids have been shown to have a number of anti-inflammatory properties, including decreasing the expression of adhesion molecules. Flavonoids however, are metabolised during absorption and the forms reaching the systemic circulation are glucuronidated, sulfated and methylated. Most
A two-step ultra-high-performance liquid chromatography-quadrupole/time of flight mass spectrometry with mass defect filtering method for rapid identification of analogues from known components of different chemical structure types in Fructus Gardeniae-Fructus Forsythiae herb pair extract and in rat's blood.
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Fructus Gardeniae-Fructus Forsythiae herb pair is an herbal formula used extensively to treat inflammation and fever, but few systematic identification studies of the bioactive components have been reported. Herein, the unknown analogues in the first-step screening were rapidly identified from
Macrophage as a target of quercetin glucuronides in human atherosclerotic arteries: implication in the anti-atherosclerotic mechanism of dietary flavonoids.
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Epidemiological studies suggest that the consumption of flavonoid-rich diets decreases the risk of cardiovascular diseases. However, the target sites of flavonoids underlying the protective mechanism in vivo are not known. Quercetin represents antioxidative/anti-inflammatory flavonoids widely
Quercetin metabolites downregulate cyclooxygenase-2 transcription in human lymphocytes ex vivo but not in vivo.
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Flavonoids have the potential to modulate inflammation by inhibition of cyclooxygenase-2 (COX-2) transcription. In this study, we compared the effect of the human flavonoid plasma metabolites (quercetin 3'-sulfate, quercetin 3-glucuronide and 3'-methylquercetin 3-glucuronide) on expression of COX-2
Comparative effects of quercetin and its predominant human metabolites on adhesion molecule expression in activated human vascular endothelial cells.
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Adhesion of circulating monocytes to vascular endothelial cells, a critical step in both inflammation and atherosclerosis, is mediated by cross-linkage of adhesion molecules expressed on the surface of both cell types. Dietary flavonoids have been shown to have anti-inflammatory properties,
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