[abstract] SHALLOW HABITAT AIR DIVING I: SELECTED SERUM PROTEIN RESPONSES.

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[abstract] SHALLOW HABITAT AIR DIVING I: SELECTED SERUM PROTEIN RESPONSES.

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Title: [abstract] SHALLOW HABITAT AIR DIVING I: SELECTED SERUM PROTEIN RESPONSES.
Author: Stewart, SD
Abstract: Selected human serum protein responses to a 30 day exposure to compressed air breathing with periods of simulated multiple deep and shallow compressed air excursion diving was monitored in two subjects. Serum proteins were examined by cellulose acetate electrophoresis or radial immunodiffusion. No significant changes were observed in either total serum protein fractions, serum immunoglobulin A or alpha-2-macroglobulin during periods of acute exposure, deep or shallow excursion, or during post-dive recovery. No differences were observed between pre-dive and acute phase levels of alpha-1-acid glycoprotein (a-1-AG) and the third and fourth components of complement (Cf3 and C'4). Significant elevations in both subjects during the period of simulated multiple deep excursion diving (200-235 feet) following the acute phase exposure was observed in a-1-AG and C'3 and C'4. No differences were observed in either diver a-1-AG and C'4 serum levels during the periods of multiple shallow excursion and the preceding period of deep excursion diving. A significant difference was observed in Ct3 levels when deep excursion period values were compared to those obtained during the shallow excursion period. All values post-dive were not significantly different from those observed during the preceding shallow excursion period. The etiopathogenic aspects of the observed changes is unknown. However, the absence of detectable differences during the pre-dive and acute phase periods suggests that exposure to 0.52ATA oxygen at the saturation depth was not detrimental to the divers health. The significant changes observed only during the period of multiple deep excursion diving does suggest that multiple excursion diving to the 200-235 foot levels does affect the biochemical/physiological statue of the diver either as a result of periodic multiple compression and decompression and/or periodic exposure to increased oxygen partial pressures from the saturation base.
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held May 10-11, 1974. Hilton Hotel, Washington, D.C. (http:www.uhms.org)
URI: http://archive.rubicon-foundation.org/61
Date: 1974

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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