Binod Prasad, Daniela Grimm, Sebastian M Strauch, Gilmar Sidnei Erzinger, Thomas J Corydon, Michael Lebert, Nils E Magnusson, Manfred Infanger, Peter Richter, Marcus Krüger
All life forms have evolved under the constant force of gravity on Earth and developed ways to counterbalance acceleration load. In space, shear forces, buoyance-driven convection, and hydrostatic pressure are nullified or strongly reduced. When subjected to microgravity in space, the equilibrium between cell architecture and the external force is disturbed, resulting in changes at the cellular and sub-cellular levels (e.g., cytoskeleton, signal transduction, membrane permeability, etc.). Cosmic radiation also poses great health risks to astronauts because it has high linear energy transfer values that evoke complex DNA and other cellular damage...
December 9, 2020: International Journal of Molecular Sciences