brain injuries that caused by strokes (result of intra partum ischemia) are a frequent cause of prenatal mortality and morbidity with limited therapeutic options. transplanting human mesenchymal stem cells (hmscs) indicates improvement in hypoxic ischemic brain injury (hibd) by secretion growth factor stimulating repair processes (hmscs) known as multi potent cells which isolated from bone marr...

Hypoxia is considered to be a stressful physiological condition, which may occur during labor and the later stages of pregnancy as result of, among other reasons, an aged placenta. Therefore, when gestation or prolonged, low oxygen supply tissues last for minutes, newborns present breathing problems require resuscitation maneuvers. As result, poor circulating cells longer periods time, leading ...

OBJECTIVES The main aim of this review was to evaluate the effectiveness of hypoxic training on the modulation of cardiometabolic risk factors. DESIGN Literature review. METHODS An electronic search encompassing five databases (PUBMED, EMBASE, MEDLINE, CINAHL, and SPORTDiscus) was conducted. A total of 2138 articles were retrieved. After excluding non-relevant articles, duplications and out...

Transcriptional regulation of gene expression by hypoxia is an important, but yet only marginally characterized mechanism by which organisms adapt to low oxygen concentrations. The human hepatoma cell line HepG2 is a widely used model for studying hypoxic induction of the hematopoietic growth factor erythropoietin. In an attempt to identify additional genes expressed in HepG2 cells during hypox...

OBJECTIVE The postoperative course of cyanotic children is generally more complicated than that of acyanotic children. A possible reason is reoxygenation injury at the beginning of cardiopulmonary bypass. In this study we tested the hypothesis that reoxygenation of chronically hypoxic hearts is worse than that of normoxic hearts. METHODS Two groups of rats (n = 9 each) were exposed to either ...

The role of a transmembrane calcium influx in hypoxic pulmonary vasoconstriction was studied in isolated, blood-perfused, rat lungs. We reasoned that, if the influx of extracellular calcium mediated the hypoxic mechanism, pressor responses to alveolar hypoxia (2.5% O2) would be susceptible to inhibition by the calcium antagonists verapamil (2 X 10(-5) to 2 X 10(-1) mM) and SKF 525A (2.6 to 260 ...

Persistent hypoxia can cause pulmonary arterial hypertension (PAH) that may be associated with significant remodeling of the pulmonary arteries, including smooth muscle cell proliferation and hypertrophy. We previously demonstrated that the NADPH oxidase homologue NOX4 mediates human pulmonary artery smooth muscle cell (HPASMC) proliferation by transforming growth factorβ1 (TGF-β1). We now show...

Objectives This study aimed to identify differences in absolute neutrophils, lymphocytes, and neutrophil-to-lymphocyte ratio between neonates with two forms of ischemic brain injury, hypoxic-ischemic encephalopathy, and acute ischemic stroke, compared to controls. We also aimed to determine whether this neutrophil/lymphocyte response pattern is associated with disease severity or is a consequen...