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Therapeutic effects of hyperbaric oxygen and dimethyl sulfoxide following spinal cord transections in rats
Gelderd,JB Welch,DW Fife,WP Bowers,DE
2009/7/17
Thirty adult, male, Long-Evans hooded rats underwent spinal cord transections at the T5 vertebral level. Following surgery, animals were separated into three groups: Group I received only normal posto...
Pulmonary function in men with intermittent long-term exposure to hyperbaric oxygen
pulmonary hyperbaric human pulmonary function oxygen toxicity pulmonary intermittent exposure
2009/7/16
The effect of intermittent exposure to hyperbaric oxygen over a long period of time was evaluated in 65 subjects. Pulmonary ventilation and diffusion capacities were measured in 65 divers as well as i...
Effect of high ambient pressure and oxygen tension on organ blood flow in the anesthetized rat
perfusion oxygen animal rat
2009/7/16
Cardiac output (CO) and blood flow to major organs were investigated in pentobarbital-anesthetized rats using 85Sr- and 141Ce-labeled microspheres (MS) (15 +/- 1 microns (SD)) injected into the left v...
Speech intelligibility at high helium-oxygen pressures
human Speech intelligibility heliox
2009/7/16
Word-list intelligibility scores of unprocessed speech (mean of 4 subjects) were recorded in helium-oxygen atmospheres at stable pressures equivalent to 1600, 1400, 1200, 1000, 860, 690, 560, 392, and...
Effect of hyperbaric oxygen on cyanide intoxication: in situ changes in intracellular oxidation reduction
HBO cyanide intoxication cyanide animal rabbit
2009/7/16
To evaluate the efficacy of hyperbaric oxygen on cyanide intoxication, changes in the intracellular oxidation-reduction state of the renal cortex were observed in situ in 16 New Zealand white rabbits ...
Phospholipid synthesis in isolated perfused lungs of rats made tolerant to 100% oxygen
pulmonary Phospholipid synthesis lung oxygen animal rat
2009/7/16
Tolerance to 100percent oxygen is readily induced in the rat by prior exposure to 80percent oxygen for 7 days. In order to determine whether the rate of synthesis, or te alveolar content, of pulmonary...
Successful therapy of cerebral air embolism with hyperbaric oxygen at 2.8 ATA
human case report hyperbaric oxygen therapy
2009/7/16
A 60-year-old male patient suddenly developed blindness, agitation, and disorientation 36 h after coronary bypass surgery. Onset of symptoms followed efforts to clear an air-filled radial artery cannu...
Acute oxygen toxicity in a saturation diver working in the North Sea
exercise pulmonary human oxygen toxicity commercial saturation
2009/7/16
A commercial diver taking part in a saturation dive (O2-He) was exposed intermittently to 1.4 b of oxygen for a total of 55 h. He developed the syndrome associated with oxygen pulmonary toxicity. Deta...
Fetal development:effects of stimulated diving and hyperbaric oxygen treatment
decompression hyperbaric Pregnancy Fetus HBO animal Hamster
2009/7/16
Fetuses from hamsters exposed to repetitive 5.2-ATA (140 fsw) air dives during early pregnancy showed no significant differences from the control group in birth weight, frequency of malformation, or d...
The compressibility and the capacitance coefficient of helium-oxygen atmospheres
Temperature helium heliox
2009/7/16
The capacitance coefficient beta of an ideal gas mixture depends only on its temperature T, and its value is derived from the ideal gas law (i.e., beta = 1/RT, R being the ideal gas constant). But rea...
Effects of hyperbaric oxygen on heart,brain,and lung functions in rat
hyperbaric rat heart brain lung oxygen pressures
2009/7/16
Electrocardiogram (ECG), electrocorticogram (ECoG), and respiratory rate (RR) were monitored in awake, unrestrained rats during continuous exposure to 1, 3, and 5 ATA O2 until death. The RR showed a c...
Acetazolamide and CO2 in hyperbaric oxygen toxicity
Acetazolamide oxygen toxicity carbon dioxide
2009/7/16
The role of CO2 in hyperbaric oxygen toxicity was investigated by administering acetazolamide (Diamox), Tris buffer [tris(hydroxymethyl)aminomethane], and sodium bicarbonate by i.p. injection, and by ...
Positive-pressure oxygen breathing and pulmonary atelectasis during immersion
human oxygen pulmonary atelectasis immersion
2009/7/16
The effect on vital capacity of 1 h of oxygen breathing with and without continuous positive pressure was studied in five subjects during immersion. Vital capacity (VC) was used as an index of pulmona...
Pulmonary atelectasis formation during diving with closed-circuit oxygen breathing apparatus
human rebreather oxygen Pulmonary atelectasis immersion
2009/7/15
The physiological effects of diving with two types of closed-circuit oxygen breathing apparatus were investigated in 4 divers. In one apparatus the breathing bag was mounted on the dorsum and in the o...
Effect of high ambient pressure and oxygen tension on organ blood flow in conscious trained rats
cardiac output rat animal Blood Circulation
2009/7/15
Cardiac output and blood flow to different organs and tissues were investigated in conscious trained rats using radiolabeled microspheres (MS) injected into the left ventricle. Two subsequent MS injec...