نتایج جستجو برای: hypoxia preconditioning
تعداد نتایج: 67287 فیلتر نتایج به سال:
Our objective was to determine whether human diabetic myocardium is amenable to the cardioprotective actions of ischaemic preconditioning. Human right atrial appendages were harvested from diabetic and non-diabetic patients undergoing elective coronary artery bypass graft surgery. The atrial trabeculae were isolated and subjected to 90 min. of hypoxia followed by 120 min. of reoxygenation, foll...
Injured peripheral neurons successfully activate a proregenerative transcriptional program to enable axon regeneration and functional recovery. How transcriptional regulators coordinate the expression of such program remains unclear. Here we show that hypoxia-inducible factor 1α (HIF-1α) controls multiple injury-induced genes in sensory neurons and contribute to the preconditioning lesion effec...
Perinatal hypoxia-ischemia (HI) results in brain injury, whereas mild hypoxic episodes result in preconditioning, which can significantly reduce the vulnerability of the brain to subsequent severe hypoxia-ischemia. Hypoxic-preconditioning (PC) has been shown to enhance cell survival and differentiation of progenitor cells in the central nervous system (CNS). The purpose of this study was to det...
Nucleoside transporters (NTs) comprise 2 widely expressed families, the equilibrative nucleoside transporters (diffusion-limited channels) and concentrative nucleoside transporters (sodium-dependent transporters). Because of their anatomic position at the blood-tissue interface, vascular NTs are in an ideal position to influence vascular nucleoside levels, particularly adenosine, which among ot...
BACKGROUND AND PURPOSE The small ubiquitin-like modifier (SUMO), a ubiquitin-like protein involved in posttranslational protein modifications, is activated by several conditions, such as heat stress, hypoxia, and hibernation and confers neuroprotection. Sumoylation enzymes and substrates are expressed also at the plasma membrane level. Among the numerous plasma membrane proteins controlling ion...
Rapid induction of soldiers to high altitude under emergency situation may lead higher incidence acute mountain sickness (AMS) and other illness. Intermittent Hypoxia Training (IHT) at sea level before going is an approach for rapid acclimatisation. This be helpful reduce the occurrence AMS leads better acclimatisation in shorter duration. The present study evaluates role biochemical markers af...
RATIONALE The effectiveness of transplanted bone marrow mesenchymal stem cells (MSCs) for cardiac repair has been limited; thus, strategies for optimizing stem-cell-based myocardial therapy are needed. OBJECTIVE The present study was designed to test our central hypothesis that hypoxia-preconditioned MSCs (HP-MSCs) are more effective than MSCs cultured under ambient oxygen levels for the trea...
Astragaloside IV exerts beneficial effects on hypoxia/reoxygenation-induced cardiomyocyte injury. However, the exact mechanisms needs further disclosed. This study was designed to investigate the role of PKCβ/Egr-1 pathway in the protective effect of Astragaloside IV on hypoxia/reoxygenation injury. Exposed under hypoxia/reoxygenation condition, the primary cultured neonatal rat cardiac myocyte...
BACKGROUND To explore the effect of hypoxic preconditioning on the JAK/STAT3 signaling pathway and its effect on trophoblast cell viability and angiogenesis in preeclampsia (PE). MATERIAL AND METHODS Placental tissues from normal pregnant women and PE patients were collected to detect the expression levels of JAK and STAT3. Trophoblast cells separated from the PE patients were assigned to 4 gro...
OBJECTIVE Developed tension in guinea-pig papillary muscles is depressed by prolonged hypoxia; subsequent reoxygenation leads to a partial recovery that stabilizes after an early period of arrhythmia. We have investigated whether hypoxic preconditioning in these muscles (1) improves the recovery of developed tension, (2) protects against arrhythmia, and (3) causes other significant electromecha...
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