• Aviat Space Envir Md · Dec 1994

    Development of insulin resistance by astronauts during spaceflight.

    • T P Stein, M D Schulter, and G Boden.
    • Department of Surgery, University of Medicine and Dentistry of New Jersey, School of Osteopathic Medicine, Stratford 08084.
    • Aviat Space Envir Md. 1994 Dec 1; 65 (12): 1091-6.

    AbstractHuman spaceflight is associated with the loss of body protein. On Earth, insulin is an important factor in the regulation of muscle protein synthesis and breakdown. The objectives of this study were to determine whether insulin resistance occurs in spaceflight, and if the development of insulin resistance is related to the protein loss. The urinary C-peptide excretion rate was used as a marker for insulin secretion. The experiment was conducted before, during and after the 1991 9.5-d SLS-1 (Columbia) Space Shuttle mission. Dietary intake and urine output were monitored continuously for the four payload crewmembers from 11 d before launch to 7 d after landing for a total of 27 d. Data were obtained on the four payload crewmembers. Results were as follows: 1) the mean inflight C-peptide excretion rates were significantly lower than either the pre- or postflight rates (p < 0.05); and 2) the inflight nitrogen balance decreased as C-peptide excretion increased.

      Pubmed     Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…