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Functional responses of diaphragm muscle in the rat to varying PCO2 levels and helium content in hyperbaric atmospheres
diaphragm carbon dioxide helium hyperbaric animal rat
2009/7/20
Functional responses of diaphragm muscle in the rat to varying PCO2 levels and helium content in hyperbaric atmospheres.
Changes in rat respiratory behavior under varying PCO2 levels and argon content in hyperbaric Ar-O2-CO2 atmospheres
respiratory carbon dioxide argon animal rat
2009/7/20
An anesthetized rat preparation has been used for breathing studies in hyperbaric Ar-O2-CO2 atmospheres in which total saturation pressure was varied in the range 1-19.1 ATA and PCO2 was set at levels...
Voice fundamental frequency levels of divers in helium-oxygen speaking environments
human heliox speaking Voice speech intelligibility
2009/7/20
Divers under hyperbaric conditions experience a marked deterioration in speech intelligibility. Included among the possible features that contribute to speech degradation is change/distrotion of speak...
Effect of prolonged exposure to elevated carbon monoxide and carbon dioxide levels on red blood cell parameters during submarine patrols
human drug red cell
2009/7/17
Effect of prolonged exposure to elevated carbon monoxide and carbon dioxide levels on red blood cell parameters during submarine patrols.
Catecholamine levels in divers subjected to stresses of immersion and hyperbaric exposure
immersion exposure decompression procedures carbon dioxide
2009/7/15
The study was undertaken to determine the changes in plasma catecholamine levels in response to the combined stresses of cool water immersion and hyperbaric exposure. Plasma catecholamines were measur...
Spinal cord lipid levels in a porcine model of spinal cord decompression sickness
helium heliox decompression air chamber Spinal cord lipid animal swine
2009/6/8
Spinal cord lipid content was analyzed in 50 pigs that had experienced a simulated dive known to produce 20-80% incidence of neurologic decompression sickness (DCS). Using air and heliox as breathing ...
Effect of hyperbaric conditions on plasma stress hormone levels and endothelin-1
hyperbaric air endothelin-1 plasma stress hormone
2009/6/8
To study a generalized stress reaction as well as endothelin-1 concentrations during moderate hyperbaria and hyperbaric oxygen (HBO2), eight professional divers were exposed to air (O2 21%, AIR) and o...
Effect of caffeine consumption on tissue oxygen levels during hyperbaric oxygen treatment
transcutaneous oxygen hyperbaric air chamber
2009/6/8
Ten men were exposed to hyperbaric oxygen (HBO2), and their tissue oxygen levels were monitored after they drank either placebo or caffeine beverages. Transcutaneous tissue oxygen (PtcO2) monitor meas...
Levels of anxiety and hostility in South African Navy divers
Age Factors Analysis of Variance Anxiety psychology Case-Control Studies Comparative Study
2009/6/5
This study aimed to describe the levels of anxiety and hostility in a group of 45 SA Navy divers, by analysing their scores on an Anxiety Scale and Hostility and Directed Hostility Questionnaire. Resu...
Wound oxygen levels during hyperbaric oxygen treatment in healing wounds
wound Hyperbaric Oxygenation healing animal rat
2009/6/2
Hyperbaric oxygen (HBO2) increases wound oxygen delivery, but few data quantify wound oxygen levels over the course of healing. We characterized these changes during and after HBO2 treatment in a rat ...
Complement levels before and after dives with a high risk of DCS
DIVING complement complement activation immune response decompression sickness human RISK decomplementation
2009/6/2
Previously, complement activation has been associated with decompression sickness (DCS). However data, both in humans and in animals, are controversial. Hypothesis: Complement activation and depletion...
Acute decompression illness and serum s100beta levels: a prospective observational pilot study
decompression sickness decompression illness neurological biochemical marker serum S100beta Creatine Kinase human
2009/6/2
BACKGROUND: S100beta, a calcium binding protein associated with astroglial cells and other tissues has been shown to be raised in the serum of patients with a number of neurological pathologies. As th...
Effects of hyperbaric oxygen treatment on blood sugar levels and insulin levels in diabetics
Diabetes hyperbaric oxygen hyperbaric research
2009/5/18
Hyperbaric oxygen (HBO2) is commonly used to
treat non-healing wounds in diabetic patients. Although
anecdotal evidence from hyperbaric centres suggests that
diabetics are vulnerable to hypoglycaem...
Effect of exposure to compressed air and elevated oxygen levels on bone blood flow in the rabbit
decompression osteonecrosis air animal rabbit
2009/3/30
As the pathogenesis of dysbaric osteonecrosis is not fully understood, we investigated the effects of compressed air, decompression, and elevated oxygen levels on bone blood flow. Bone blood flow was ...