platinum oxide

06/01/2005 - "Simultaneous measurement of rat brain cortex PtO2 using EPR oximetry and a fluorescence fiber-optic sensor during normoxia and hyperoxia."
01/01/1999 - "The system was used to simultaneously monitor pO2 in tissue (PtO2) and venous blood (PvO2) during normoxia, hyperoxia and hypoxia. "
12/01/2011 - "This study demonstrates that (19) F MRI of hexafluorobenzene offers a feasible tool to measure regional ptO2 in vivo, and that hyperoxia significantly increases ptO2 of multiple organs in a rat model."
04/01/1979 - "Changes of the oxygen tension in the surface layers of cerebral cortex (PtO2) and arterial blood (PaO2) in the conditions of hyperoxia occurred in anesthetized rabbits: raising of O2 partial pressure in altitude chamber to 1.0 and 2.0 kgs/cm2 increased PaO2 from 76.5 +/- 11.4 mm Hg to 472.3 +/- 63.1 and 1138.0 +/- 79.4 mm Hg respectively. "
06/01/1999 - "A significant reduction in the PtO2 response to hyperoxia was observed in animals treated with the NOS inhibitor NG-nitro-L-arginine methyl ester (L-NAME), an effect not reversed by fluid resuscitation. "

10/01/2001 - "The induction of pancreatitis resulted in a significant reduction in pancreatic PtO2 in the pancreatitis groups. "
10/01/2001 - "To examine the effects of dopexamine on pancreatic tissue oxygen tension (PtO2) and the extent of acinar injury in rats with acute necrotising pancreatitis Laboratory study. "

12/01/1996 - "Therefore, continuous monitoring of not only PtO2 but also PtCO2 is beneficial for patients undergoing hepatic surgery with ischemia."
01/01/2021 - "Secondary outcomes were complications from probe insertion, clinical consequences from ptO2 measurements, clinical outcome according to the modified Rankin Scale (mRS) as well as development of ischemia on follow-up imaging. "
12/01/1996 - "It was concluded that PtCO2 reflects the state of anaerobic tissue metabolism during ischemia and PtO2 reflects the magnitude of microcirculatory disturbance and tissue injury caused by ischemia/reperfusion. "
12/01/1996 - "The profiles of PtO2 and PtCO2 during ischemia and reperfusion were clearly demonstrated, and the CA point was observed 12.7 +/- 2.9 min after induction of ischemia. "
01/01/1987 - "During occlusion one single pattern of ptO2 values was found; the measurements from the first point, closest to the core of ischemia, dropped rapidly to zero while the second, third and fourth measuring points showed a stepwise slower decrease in ptO2. "

01/15/2010 - "After 60 min, the maximum (51.9 +/- 3.9 mmHg) and minimum (43.7 +/- 3.8 mmHg) values of PtO2 were significantly greater relative to baseline and the first apnea dip, respectively. "
07/01/2014 - "During successive apneas cerebral cortex PtO2 presented a different pattern in the two age groups; there was a fast increase in young rats, whereas it remained without significant changes between the beginning and the end of the protocol in the aged group. "
01/15/2010 - "The minimum cerebral cortex PtO2 computed during the first apnea (29.6 +/- 2.4 mmHg) was significantly lower than baseline PtO2 (39.7 +/- 2.9 mmHg; p = 0.011). "
12/01/1992 - "The PtO2 continued to decrease until the time of irreversible apnea. "
07/01/2014 - "To test the hypotheses that brain oxygen partial pressure (PtO2) in response to obstructive apneas changes with age and that it might lead to different levels of cerebral tissue oxidative stress. "

09/01/2010 - "Exposure to 0.60 ATA O2 and hypoxia (0.00 ATA) decreased core PtO2 to 84±6 and 20±4 Torr, respectively, and abolished the orthodromic response. "
12/01/1992 - "The author reports here on the effects of compression of the carotid arteries and obstruction of the airway leading to hypoxia, based on an analysis of CBF and PtO2 during hanging. "
06/01/1992 - "Marked degrees of tissue hypoxia were frequently tolerated before major histological damage became apparent, a critical PtO2 level of 1.9 mmHg being identified. "
09/30/1985 - "During hypoxia, the ptO2 at 100 micron depth fell rapidly to less than 20 mm Hg. During reoxygenation, large transient ptO2 increases above normoxic values were observed. "
01/01/1999 - "The system was used to simultaneously monitor pO2 in tissue (PtO2) and venous blood (PvO2) during normoxia, hyperoxia and hypoxia. "