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Science 13 July 1984:
Vol. 225. no. 4658, pp. 214 - 215
DOI: 10.1126/science.6729476
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Articles

Science, Vol 225, Issue 4658, 214-215
Copyright © 1984 by American Association for the Advancement of Science

articles

Prolonged weightlessness and humoral immunity

EW Voss Jr

Preflight, inflight, and postflight serum samples obtained from crewmen aboard STS-9 were analyzed for immunoglobulin content. Control studies for circadian rhythm were conducted to further validate the analyses. Quantitation of immunoglobulins G, M, A, D, and E indicated relatively minor fluctuations in the concentration of each class of immunoglobulin during the experiment. Thus, microgravity effects on immunoglobulin levels during a 10-day flight were considered insignificant.


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