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Página 1 a partir de 355 resultados
Honokiol inhibits HIF pathway and hypoxia-induced expression of histone lysine demethylases.
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Hypoxia-inducible-factor (HIF)-mediated expression of pro-angiogenic genes under hypoxic conditions is the fundamental cause of pathological neovascularization in retinal ischemic diseases and cancers. Recent studies have shown that histone lysine demethylases (KDMs) play a key role in the
High methylation levels of histone H3 lysine 9 associated with activation of hypoxia-inducible factor 1α (HIF-1α) predict patients' worse prognosis in human hepatocellular carcinomas
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Although it is becoming increasingly apparent that histone methyltransferases and histone demethylases play crucial roles in the cellular response to hypoxia, the impact of hypoxic environments on global patterns of histone methylation is not well demonstrated. In this study, we try to detect the
Neuroprotective effect of L-lysine monohydrochloride on acute iterative anoxia in rats with quantitative analysis of electrocorticogram.
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Lysine is one of the indispensible amino acids and L-lysine monohydrochloride (LMH) is widely available to public as a nonprescription oral supplement. Potential clinical usefulness of oral LMH supplements has been indicated in stroke, hypertension, and seizure induced by pentylenetetrazole (PTZ),
Influence of prenatal hypoxia on brain development: effects on body weight, brain weight, DNA, protein, acetylcholinesterase, 3-quinuclidinyl benzilate binding, and in vivo incorporation of [14C]lysine into subcellular fractions.
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The influence of prenatal hypoxia on subsequent brain development in the young rat was investigated by examining body and brain weight, cerebral cortex wet weight, protein and DNA concentrations, acetylcholinesterase (AChE) activity, 3-quinuclidinyl benzilate (QNB)-binding levels, the relative
Uptake of lysine and incorporation into proteins of the cortex during a short-term hypoxia of neonatal rats.
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The uptake of [14C]lysine and its incorporation into proteins of the brain cortex was determined in vivo during a mild hypoxia (pO2 = 10.5-11.0 kPa) for short times up to 120 min in newborn rats. The uptake was relatively high within the first 15 min and was not altered by hypoxia. A diminished
Procollagen-lysine 2-oxoglutarate 5-dioxygenase 2 promotes hypoxia-induced glioma migration and invasion.
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Poor prognosis of glioblastoma multiforme is strongly associated with the ability of tumor cells to invade the brain parenchyma, which is believed to be the major factor responsible for glioblastoma recurrence. Therefore, identifying the molecular mechanisms driving invasion may lead to the
Protein lysine methylation in the regulation of anoxia tolerance in the red eared slider turtle, Trachemys scripta elegans.
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The red eared slider turtle (Trachemys scripta elegans) is a champion vertebrate facultative anaerobe, capable of surviving for several months under conditions of exceptionally low oxygen availability. The ability of the turtle to facilitate this impressive tolerance to oxygen restriction is
Hypoxia induced expression of histone lysine demethylases: implications in oxygen-dependent retinal neovascular diseases.
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Hypoxia inducible factor (HIF) plays a critical role in cellular adaptation to hypoxia by regulating the expression of essential genes. Pathological activation of this pathway leads to the expression of pro-angiogenic factors during the neovascularization in cancer and retinal diseases. Little is
Dynamic regulation of six histone H3 lysine (K) methyltransferases in response to prolonged anoxia exposure in a freshwater turtle.
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The importance of histone lysine methylation is well established in health, disease, early development, aging, and cancer. However, the potential role of histone H3 methylation in regulating gene expression in response to extended periods of oxygen deprivation (anoxia) in a natural, anoxia-tolerant
Acetylation of lysine 182 inhibits the ability of Mycobacterium tuberculosis DosR to bind DNA and regulate gene expression during hypoxia.
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The DosR regulon is believed to be a key factor in latency adaptation of Mycobacterium tuberculosis and is strongly induced by multiple stresses, including hypoxia. Previous studies have revealed reversible acetylation of the conserved core DNA-binding lysine residue 182 (K182) of DosR in M.
Crosstalk between lysine methylation and phosphorylation of ATG16L1 dictates the apoptosis of hypoxia/reoxygenation-induced cardiomyocytes.
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Post-translational modifications of autophagy-related (ATG) genes are necessary to modulate their functions. However, ATG protein methylation and its physiological role have not yet been elucidated. The methylation of non-histone proteins by SETD7, a SET domain-containing lysine methyltransferase,
The effect of insulin-loaded linear poly(ethylene glycol)-brush-like poly(l-lysine) block copolymer on renal ischemia/reperfusion-induced lung injury through downregulating hypoxia-inducible factor.
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The aim of this study was to observe the therapeutic effect of insulin-loaded linear poly(ethylene glycol)-brush-like poly(l-lysine) block copolymer poly(ethylene glycol)-b-(poly(ethylenediamine l-glutamate)-g-poly(l-lysine)) (PEG-b-(PELG-g-PLL) on renal ischemia/reperfusion-induced lung injury
Inhibition of histone/lysine acetyltransferase activity kills CoCl2-treated and hypoxia-exposed gastric cancer cells and reduces their invasiveness.
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Hypoxia enhances immortality and metastatic properties of solid tumors. Deregulation of histone acetylation has been associated with several metastatic cancers but its effect on hypoxic responses of cancer cells is not known. This study aimed at understanding the effectiveness of the
HDAC4 protein regulates HIF1α protein lysine acetylation and cancer cell response to hypoxia.
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Hypoxia-inducible factor 1 α (HIF1α) is an essential part of the HIF-1 transcriptional complex that regulates angiogenesis, cellular metabolism, and cancer development. In von Hippel-Lindau (VHL)-null kidney cancer cell lines, we reported previously that HIF1α proteins can be acetylated and
Hypoxia-Inducible Histone Lysine Demethylases: Impact on the Aging Process and Age-Related Diseases.
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Hypoxia is an environmental stress at high altitude and underground conditions but it is also present in many chronic age-related diseases, where blood flow into tissues is impaired. The oxygen-sensing system stimulates gene expression protecting tissues against hypoxic insults. Hypoxia stabilizes
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