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  • 1
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    Hypobaric chamber for the study of oral health problems in a simulated spacecraft environment (1974)
    In:  CASI
    Details
    Publication Date: 2006-05-07
    Description: A hypobaric chamber was constructed to house two marmo-sets simultaneously in a space-simulated environment for periods of 14, 28 and 56 days which coincided with the anticipated Skylab missions. This report details the fabrication, operation, and performance of the chamber and very briefly reviews the scientific data from nine chamber trials involving 18 animals. The possible application of this model system to studies unrelated to oral health or space missions is discussed.
    Keywords: AEROSPACE MEDICINE
    Type: Chamber of Commerce Proc. of the 1st 1974 Technol. Transfer Conf.; p 281-286
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Skylab oral health studies (1977)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: Evaluation of Skylab crewmembers for mission related effects on oral health in relation to possible dental injuries provided the following distinctive changes: (1) increased counts of specific anaerobic and streptococcal components; (2) elevations in levels of secretory IgA concurrent with diminutions of salivary lysozyme; and (3) increases in dental calculus and gingival inflammations. The clinical changes are considered to be more influenced by the preexisting state of dental health than by any mission related effects.
    Keywords: AEROSPACE MEDICINE
    Type: Biomed. Results from Skylab; p 35-44
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Study to define and verify the personal oral hygiene requirements for extended manned space flight: Oral physiology and microbiology in Skylab manned space missions (1975)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Methods for metabolic fingerprinting of pathogenic oral bacteria were developed and the effects of Skylab missions on salivary electrolyte levels were studied. High resolution gas liquid chromatographic (GLC) and pyrolysis-GLC procedures were used to obtain metabolic profiles of closely related bacteria associated with dental caries and periodontal disease. It was found that the GLC procedures provide a practical and reproducible means of obtaining metabolic markers for identifying closely related strains of these organisms. Fractions of stimulated whole saliva samples from the prime and back-up crews of the three Skylab missions were used to measure salivary electrolyte concentrations. All the electrolytes previously reported as having increased in urine and feces during the missions were assessed. Sodium, potassium, calcium, magnesium, phosphorous and chloride were studied. A decrease in sodium and an increase in magnesium were observed, but the mineral imbalances attributable to the mission-related increases in urinary electrolytes were not detected.
    Keywords: AEROSPACE MEDICINE
    Type: NASA-CR-144361
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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