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Strana 1 od 226 výsledky
Protective effects of Myrica rubra flavonoids against hypoxia/reoxygenation-induced cardiomyocyte injury via the regulation of the PI3K/Akt/GSK3β pathway.
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Myrica rubra is well known for its delicious taste and high nutritional value. The present study investigated the potential protective effects and mechanisms of M. rubra flavonoids (MRF) extract on isoproterenol (ISO)‑induced myocardial injury in rats and hypoxia/reoxygenation (H/R) injury in H9c2
Neuroprotective effects of flavonoids on hypoxia-, glutamate-, and oxidative stress-induced retinal ganglion cell death.
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OBJECTIVE
This study was conducted to investigate the effect of flavonoids, a major family of antioxidants contained in foods, on retinal ganglion cell (RGC) death induced by hypoxia, excessive glutamate levels, and oxidative stress. Moreover, to assess the structure-activity relationships of
[Effects of scutellaria stem-leaf total flavonoids on cardiocyte apoptosis induced by hypoxia/reoxygenation].
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OBJECTIVE
To study the effect of Scutellaria baicalensis stem-leaf total flavonoids (SSTF) on cardiocyte apoptosis of neonatal rats induced by hypoxia/reoxygenation and its action of mechanism. METHODS Sixty one to two days old rats, male or female, were selected. Hypoxia/reoxygenation injured model
Hypoxia induces an increase in intestinal permeability and pulmonary arterial pressures in neonatal Holstein calves despite feeding the flavonoid rutin.
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The purposes of this study were to determine whether the naturally occurring flavonoid quercetin, as its glucorhamnoside rutin, reduces intestinal permeability and susceptibility to hypoxia-induced pulmonary hypertension in neonatal Holstein calves. A 2 × 2 between-subjects factorial design was
Specific inhibition of hypoxia-inducible factor (HIF)-1 alpha activation and of vascular endothelial growth factor (VEGF) production by flavonoids.
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Screening using a reporter under the control of the hypoxia-response element (HRE) identified several flavonoids and homoisoflavonoids that inhibit the activation of HRE under hypoxic conditions. Among various compounds, isorhamnetin, luteolin, quercetin, and methyl ophiopogonanone B (MOB) were
The flavonoid quercetin induces hypoxia-inducible factor-1alpha (HIF-1alpha) and inhibits cell proliferation by depleting intracellular iron.
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Quercetin, a flavonoid with anti-oxidant, metal chelating, kinase modulating and anti-proliferative properties, can induce hypoxia-inducible factor-1alpha (HIF-1alpha) in normoxia, but its mechanism of action has not been determined. In this study we characterized the induction of HIF-1alpha and the
The effects of doxycycline and micronized purified flavonoid fraction on human vein wall remodeling are not hypoxia-inducible factor pathway-dependent.
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BACKGROUND
Doxycycline and micronized purified flavonoid fraction (MPFF) modulate vein wall remodeling that may be associated with hypoxia in varicose veins (VVs), vein graft stenosis, and deep venous thrombosis. We recently reported that in vitro exposure of non-VV (NVVs) and VVs to hypoxic
Regulative effects of hawthorn leave flavonoids on cytotoxicity, NO and Ca2+ in hypoxia-treated human umbilical vein endothelial cells.
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OBJECTIVE
To evaluate the potential effect of HLF (Hawthorn leave flavonoids, w/w, 80% flavonoids) against thrombus formation, effect of HLF on hypoxia-treated human umbilical vein endothelial cell (HUVECs) was studied.
METHODS
The levels of cytotoxicity and NO upon HUVECs were studied by flow
Total Flavonoids from Carya cathayensis Sarg. Leaves Alleviate H9c2 Cells Hypoxia/Reoxygenation Injury via Effects on miR-21 Expression, PTEN/Akt, and the Bcl-2/Bax Pathway.
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This study aimed to investigate whether the total flavonoids (TFs) from Carya cathayensis Sarg. leaves alleviate hypoxia/reoxygenation (H/R) injury in H9c2 cardiomyocytes and to explore potential mechanisms. H9c2 cells pretreated with TFs for 24h were exposed to H/R treatment. The results
Flavonoids inhibit hypoxia-induced vascular endothelial growth factor expression by a HIF-1 independent mechanism.
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Flavonoids are a group of polyphenolic dietary compounds that have been proposed to possess chemopreventive properties against lung cancer. In this work we analyzed the effect of a group of 20 structurally related flavonoids, including flavones, flavonols and isoflavones, on the production of
Flavonoids from Radix Astragali induce the expression of erythropoietin in cultured cells: a signaling mediated via the accumulation of hypoxia-inducible factor-1α.
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Radix Astragali (RA) is commonly used as a health food supplement to reinforce the body vital energy. Flavonoids, including formononetin, ononin, calycosin, and calycosin-7-O-β-d-glucoside, are considered to be the major active ingredients within RA. Here, we provided different lines of evidence
[Protective Effect of Total Flavonoids from Carya cathayensis Leaf on Cultured H9C2 Cardiomyocytes During Hypoxia / Reoxygenation Injury].
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To study the protective effect of total flavonoids from Carya cathayensis leaf on cultured H9C2 cardimyocytes during hypoxia / reoxygenation( H / R) injury.
Co Cl2 was used to induce the H / R injury model in H9C2 cells at different concentrations,different H / R time. Total flavonoids from Carya
Efficacy of aqueous extract of Hippophae rhamnoides and its bio-active flavonoids against hypoxia-induced cell death.
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OBJECTIVE
To investigate the protective efficacy of aqueous extract of Hippophae rhamnoides against chronic hypoxic injury using primary rat hepatocytes.
METHODS
The extract was prepared using maceration method and characterized by its phenolic and flavonoid content and chemical antioxidant capacity
Protective effects of total flavonoids in Caragana against hypoxia/reoxygenation-induced injury in human brain microvascular endothelial cells.
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This study aimed to explore the protective effect of total flavonoids in Caragana against hypoxia/reoxygenation (H/R)-induced injury in human brain microvascular endothelial cells (BMECs). Human BMECs were selected and assigned into control, H/R, H/R+NMP, H/R+Low dose, H/R+Moderate dose, H/R+High
Protective effect of flavonoids and tocopherol in high altitude hypoxia in the rat: comparison with ascorbic acid.
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The mixture of flavonoids (silymarin) from Carduus Marianus (0.9 mg.g-1 body weight) and/or ascorbic acid (0.4 mg.g-1 body weight) were administered in the food to 21 day-old (b.w. 35-45 g) rats for one week. Then the animals were exposed, in a hypobaric chamber, to simulated altitude 8,000-12,000 m
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