ObjectiveNear infrared spectroscopy (NIRS) has been suggested as a new diagnostic tool in patients with lower extremity artery disease (LEAD). The aim of this systematic review was to summarise the impact exercise therapy on limb muscle oxygenation, evaluated by NIRS, LEAD, and give an overview NIRS instruments methodology.Data SourcesMEDLINE Embase.Review MethodsA search conducted MEDLINE Emba...

Background The mechanisms underlying hibernating myocardium are controversial. Whether de-oxygenation occurs at rest and/or stress in severely dysfunctional viable (i.e. hibernating) myocardium is currently unknown. By utlising the paramagnetic properties of deoxy-haemoglobin, blood oxygen level dependent magnetic resonance imaging (BOLD-MRI) can detect oxygenation and myocardial ischemia. We a...

Hyperbaric oxygenation was used in the combined post-operative treatment of 63 victims with distal segments of lower extremities torn off or damaged by mine and burst effect. The patients consecutively received medicamentous therapy, which improved tissue microcirculation (rheopolyglucinum, haemodesum), surgical intervention, course of hyperbaric oxygenation, and after it anticoagulant preparat...

An iron-catalyzed diastereoselective intermolecular olefin amino-oxygenation reaction is reported, which proceeds via an iron-nitrenoid generated by the N-O bond cleavage of a functionalized hydroxylamine. In this reaction, a bench-stable hydroxylamine derivative is used as the amination reagent and oxidant. This method tolerates a range of synthetically valuable substrates that have been all i...

Reduced glutathione (GSH) levels and resistance to chlorine were measured for two isogenic Escherichia coli strains stressed by oxygenation and/or starvation. The E. coli mutant deficient in GSH was not more sensitive to the oxidant than its parent strain when the bacteria were cultured with a low oxygenation rate. Starvation or oxygenation increased the resistance of the parent strain to chlor...

OBJECTIVE Extracorporeal membrane oxygenation as a bridge to lung transplantation has traditionally been associated with substantial morbidity and mortality. A major contributor to these complications may be weakness and overall deconditioning secondary to pretransplant critical illness and immobility. In an attempt to address this issue, we developed a collaborative program to allow for active...

Chronic exercise has been shown to prevent or slow age-related decline in cognitive functions in otherwise healthy, asymptomatic individuals. We sought to assess cognitive function in a stable coronary heart disease (CHD) sample and its relationship to cerebral oxygenation-perfusion, cardiac hemodynamic responses, and [Formula: see text] peak compared to age-matched and young healthy control su...

Background Oxygenation-sensitive (OS) imaging relies on alterations of deoxyhemoglobin (dHb) in the blood. Thus signal intensity (SI) is dependent on the factors that shift the dHb fraction; oxygen saturation, tissue oxygen extraction and blood supply. We aimed to physically measure and compare these parameters while manipulating myocardial oxygenation with systemic CO2 changes. These changes c...

Red blood cell transfusions are used to increase the oxygen-carrying capacity of blood in anemic states. But, because of the changes during storage of blood components and the specifics of preparation, erythrocytes may have controversial effects on tissue oxygenation and microcirculation. Also, the patient situation may play a role in the differing responses in oxygenation and microcirculation....