1. Alterations of Fibrinolytic Activity in Human During and After Hyperbaric Oxygen Exposure
- Author
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Yoshihiro Mano, N Yamami, Kazuhiro Shimaya, Masugi Maruyama, Hiroshi Fujita, M Shibayama, Hisashi Mihara, and Antonio M. Sera
- Subjects
Adult ,musculoskeletal diseases ,Decompression ,chemistry.chemical_element ,Blood Pressure ,Oxygen ,chemistry.chemical_compound ,Hyperbaric oxygen ,Plasminogen Activator Inhibitor 1 ,Humans ,Medicine ,Antigens ,Blood Coagulation ,Hyperbaric Oxygenation ,business.industry ,Fibrinolysis ,General Medicine ,chemistry ,Tissue Plasminogen Activator ,Anesthesia ,Plasminogen activator inhibitor-1 ,Tissue type ,Female ,Serum Globulins ,business ,Plasminogen activator - Abstract
To clarify the stage of fibrinolytic activation by hyperbaric oxygen (HBO) exposure, we examined its alterations in human during and after the HBO exposure. Eight healthy female volunteers breathed oxygen at 284 kPa (2.8 atmospheres absolute). Blood samples were collected before compression, shortly after compression to the pressure 284 kPa, shortly before the start of decompression, shortly after decompression, and then again 3 hours after decompression. We estimated the euglobulin fibrinolytic activity (EFA) and, the activities and antigens of both tissue-type plasminogen activator (t-PA) and plasminogen activator inhibitor-1 (PAI-1). The PAI-1 activity and PAI-1 antigen showed significant decrease after compression to a pressure 284 kPa, before the start of decompression, and after decompression. The EFA level and t-PA activity rose significantly shortly after decompression, and 3 hours later returned on baseline. These findings suggest that fibrinolytic activity is elicited after HBO rather than during HBO.
- Published
- 1996
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