GLG 598/490 xxxSpring '00

Gravity and Biology
Emily Holton, NASA Ames
 

ATTACHED CELLS

EARLY FINDINGS

  • Rat/chick bone cells may decrease activity as indicated by glucose utilization, cytoskeletal changes, and 45% reduction in mRNA expression of type I Col and OC
  • Chick muscle fibers decrease their rate of protein synthesis and lose fiber mass
  • Arg-Gly-Asp-Ser (RGDS) inhibits gravisensing in Chara corallina in a concentration-dependent manner
  • Hughes-Fulford M, Lewis M. 1996.ÝÝEffects of microgravity on osteoblast growth activation. Exp Cell Res. 224:103-9.

    Landis WJ. An overview of vertebrate mineralization with emphasis on collagen-mineral interaction. Gravitational Space Bio. Bull. 12:15-26, 1999.

    Vandenburgh H, Chromiak J, Shansky J, Del Tatto M, Lemaire J. 1999. Space travel directly induces skeletal muscle atrophy. FASEB J. 13:1031-1038.

    Wayne, R., M. P. Staves, and A. C. Leopold. The contribution of the extracellular matrix to gravisensing in characean cells. J. Cell Sci. 101:611-623, 1992.

    Cell & molecular biology research in space. FASEB J. 13 (Suppl.), S1-S177, 1999.

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