By oxymetry and electron paramagnetic resonance (EPR), we investigated the effects of repeated anoxia/re-oxygenation (A/R) periods on the respiration and production of free radicals by synoviocytes (rabbit HIG-82 cell line and primary equine synoviocytes) and equine articular chondrocytes. Three periods of 20 min anoxia followed by re-oxygenation were applied to 10(7)cells; O(2) consumption was...

Rapid field scan on the order of T/s using high frequency sinusoidal or triangular sweep fields superimposed on the main Zeeman field, was used for direct detection of signals without low-frequency field modulation. Simultaneous application of space-encoding rotating field gradients have been employed to perform fast CW EPR imaging using direct detection that could, in principle, approach the s...

Background: Blood gas analysis is critical in managing children intensive care unit primarily respiratory disorders. This study aimed to ascertain agreement between the arterial and peripheral venous measurement of pH, pCO2, pO2 bicarbonate levels along with SpO2 acute asthma.Methods: Hospital based cross sectional analytical was conducted at Pushpagiri Institute Medical Sciences 50 within age ...

Considering the improvements in cardiac surgery over the last few decades, we are now able to care most of the congenital cardiac diseases. However, the occurrence of neurological disabilities in the postoperative period remains high. Even if improvements have been made for the prevention of such complications at the short term, the long term neurological outcome remains a challenge for the nex...

Nocturnal oxygen desaturation during the sleep is very frequent in patients affected by chronic obstructive pulmonary disease (COPD). Hypoventilation, rather than sleeping apnea, is commonly considered as the most relevant factor in the onset of nocturnal oxygen desaturation. On this topic, the Authors have carried on a study on the nocturnal hypoxemia in 70 hospitalized COPD patients with a me...

BACKGROUND Little is known about the effects of intermittent hemodialysis on microcirculatory perfusion. The aim of this study is to assess the effects of hemodialysis on microvascular perfusion using transcutaneous oxymetry (TCPO2). METHODS In this observational study, hourly TCPO2 measurements were performed during hemodialysis sessions. Ankle brachial index (ABI) was carried out to classif...

BACKGROUND Peripheral arterial disease (PAD) occurs frequently among haemodialysis patients but it is underestimated. Vascular treatment and amputations are more frequent in end stage renal disease (ESRD) population compared to the general population possibly because of a diagnosis of PAD delayed. Transcutaneous oxymetry (TcPO2) is commonly used in vascular medicine to reflect local arterial bl...

Abstract Time-domain Electron paramagnetic resonance imaging (EPRI) is being developed at 300 MHz for the purpose of developing quantitative in vivo oxymetry in animal models. Unlike other imaging modalities, EPR can provide direct measurements of tissue oxygen concentration in a manner that is independent of complex biological processes such as ligand binding specificity or tracer metabolism. ...