phenolic/hypoxia

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Hypoxia-inducible factor 1alpha- mediated resistance to phenolic anticancer.

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BACKGROUND Phenolic compounds EGCG [(-)-epigallocatechin-3-gallate], resveratrol (3,4',5-trihydroxy-trans-stilbene) and capsaicin (trans-8-methyl-N-vanillyl-6-nonenamide) are worth investigating for clinical application in cancer prevention and chemotherapy. Hypoxia-induced drug resistance is a

Antioxidant potential, total phenolic and total flavonoid contents of Rhododendron anthopogonoides and its protective effect on hypoxia-induced injury in PC12 cells.

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BACKGROUND Rhododendron anthopogonoides Maxim, a kind of traditional Tibetan medicine, has been used to remove body heat, body detoxification, cough, asthma, stomachic and swelling, eliminate abundant phlegm and inflammatory for a long time. In the present study, the total phenols and total

Protective effects of gastrodin on hypoxia-induced toxicity in primary cultures of rat cortical neurons.

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The phenolic glucoside gastrodin is the main component extracted from the rhizome of Gastrodia elata (Orchidaceae), a Chinese herbal medicine, which has long been used for treating dizziness, epilepsy, stroke and dementia. The present study aims to investigate the effect of gastrodin on

Brazilian Pampa Biome Honey Protects Against Mortality, Locomotor Deficits and Oxidative Stress Induced by Hypoxia/Reperfusion in Adult Drosophila melanogaster.

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We aimed to investigate the potential beneficial effects of the Brazilian Pampa biome honey in a Drosophila-based hypoxia model. Adult flies were reared in standard medium in the presence or absence of honey (at a final concentration of 10 % in medium). Then, control flies (4 % sucrose in medium)

Hypoxia impairs conjugation and elimination of harmol in the isolated perfused rat liver.

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Although studies in isolated hepatocytes have demonstrated that hypoxia adversely affects drug conjugation, the impact of hypoxia on drug elimination by conjugation in the intact liver has not been defined. This study in the isolated perfused rat liver examines the effect of acute hypoxia on the

Humic acid and moderate hypoxia alter oxidative and physiological parameters in different tissues of silver catfish (Rhamdia quelen).

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Aquatic animals are naturally exposed simultaneously to environments with different concentrations of humic acid (HA) and seasonal or daily variations of dissolved oxygen (DO) levels. This study investigated the effects of simultaneous exposure to different HA and DO levels on plasma ion levels and

Resveratrol inhibits hypoxia-induced proliferation and migration of pulmonary artery vascular smooth muscle cells by inhibiting the phosphoinositide 3-kinase/protein kinase B signaling pathway.

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Hypoxia is a risk factor for severe chronic obstructive pulmonary disease, which aggravates the disease and may cause mortality by inducing hypoxic pulmonary hypertension (HPH). Proliferation and migration of pulmonary artery smooth muscle cells (PASMCs) may mediate this effect. Resveratrol is a

Honey protects against wings posture error and molecular changes related to mitochondrial pathways induced by hypoxia/reoxygenation in adult Drosophila melanogaster.

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We conducted an investigation to evaluate the effects of Brazilian Pampa biome honey and its major phenolic compounds on the development of an erected wings posture phenotype and related mitochondrial aspects induced by Hypoxia/Reoxygenation (H/R) in Drosophila melanogaster. Flies were pre-treated

Mg-Phenolic Network Strategy for Enhancing Corrosion Resistance and Osteocompatibility of Degradable Magnesium Alloys.

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Magnesium-based alloys are the most widely used materials for degradable metallic implants and have considerable potential for bone applications owing to their excellent stimulating effect on osteogenesis. However, their high corrosion rate limits their structural stability and causes oxygen

Modifying rates of reductive elimination of leaving groups from indolequinone prodrugs: a key factor in controlling hypoxia-selective drug release.

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3-(4-Methylcoumarin-7-yloxy)methylindole-4,7-diones were synthesised as model prodrugs in order to investigate the correlation between rates of reductive elimination from the (indolyl-3-yl)methyl position with reductive metabolism by hypoxic tumor cells and NADPH: cytochrome P450. Rates of

Resveratrol protects rat striatal slices against anoxia-induced dopamine release.

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Incubation of rat striatal slices in anoxic medium caused significant alterations in dopamine (DA) and 3,4-dihydroxyphenylacetic acid (DOPAC) outputs; while DA release increased several times, 50% decline in DOPAC output was observed under this condition. Tissue ATP level, on the other hand, was

Interleukin-17 limits hypoxia-inducible factor 1α and development of hypoxic granulomas during tuberculosis.

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Mycobacterium tuberculosis (Mtb) is a global health threat, compounded by the emergence of drug-resistant strains. A hallmark of pulmonary tuberculosis (TB) is the formation of hypoxic necrotic granulomas, which upon disintegration, release infectious Mtb. Furthermore, hypoxic necrotic granulomas

Curcumin protects rat heart mitochondria against anoxia-reoxygenation induced oxidative injury.

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It is an important therapeutic strategy to protect mitochondria from oxidative stress, especially during ischemia-reperfusion. Curcumin is a naturally occurring phenolic compound isolated as a yellow pigment from turmeric (Curcuma longa). This compound has received much attention due to its

Conditioning of Roots with Hypoxia Increases Aluminum and Acid Stress Tolerance by Mitigating Activation of K+ Efflux Channels by ROS in Barley: Insights into Cross-Tolerance Mechanisms.

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Aluminum (Al) is prevalent in soils, but Al toxicity is manifested only under acid conditions. It causes severe damages to the root system. Short-term waterlogging stress can occur simultaneously with Al toxicity in areas with high rainfall or an inappropriate irrigation pattern. Barley (Hordeum

Evidence of root zone hypoxia in Brassica rapa L. grown in microgravity.

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A series of experiments was conducted aboard the U.S. space shuttle and the Mir space station to evaluate microgravity-induced root zone hypoxia in rapid-cycling Brassica (Brassica rapa L.), using both root and foliar indicators of low-oxygen stress to the root zone. Root systems from two groups of

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