NK cell function is impaired during long-duration spaceflight
نویسندگان
چکیده
منابع مشابه
Alterations in hematologic indices during long-duration spaceflight
BACKGROUND Although a state of anemia is perceived to be associated with spaceflight, to date a peripheral blood hematologic assessment of red blood cell (RBC) indices has not been performed during long-duration space missions. METHODS This investigation collected whole blood samples from astronauts participating in up to 6-months orbital spaceflight, and returned those samples (ambient stora...
متن کاملProtein kinetics during and after long-duration spaceflight on MIR.
Human spaceflight is associated with a loss of body protein. Bed rest studies suggest that the reduction in the whole body protein synthesis (PS) rate should be ∼15%. The objectives of this experiment were to test two hypotheses on astronauts and cosmonauts during long-duration (>3 mo) flights on MIR: that 1) the whole body PS rate will be reduced and 2) dietary intake and the PS rate should be...
متن کاملReduced heart rate variability during sleep in long-duration spaceflight.
Limited data are available to describe the regulation of heart rate (HR) during sleep in spaceflight. Sleep provides a stable supine baseline during preflight Earth recordings for comparison of heart rate variability (HRV) over a wide range of frequencies using both linear, complexity, and fractal indicators. The current study investigated the effect of long-duration spaceflight on HR and HRV d...
متن کاملIncidence of clinical symptoms during long-duration orbital spaceflight
BACKGROUND The environment of spaceflight may elevate an astronaut's clinical risk for specific diseases. The purpose of this study was to derive, as accurately as currently possible, an assessment of in-flight clinical "incidence" data, based on observed clinical symptoms in astronauts on board the International Space Station (ISS). METHODS Electronic medical records were examined from 46 lo...
متن کاملDistance and Size Perception in Astronauts during Long-Duration Spaceflight
Exposure to microgravity during spaceflight is known to elicit orientation illusions, errors in sensory localization, postural imbalance, changes in vestibulo-spinal and vestibulo-ocular reflexes, and space motion sickness. The objective of this experiment was to investigate whether an alteration in cognitive visual-spatial processing, such as the perception of distance and size of objects, is ...
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ژورنال
عنوان ژورنال: Journal of Applied Physiology
سال: 2019
ISSN: 8750-7587,1522-1601
DOI: 10.1152/japplphysiol.00761.2018