| A.U. | Arbitrary unit |
| BLAST | Basic local alignment search tool |
| EADS | European aeronautic defense and space company |
| ERK | Extracellular signal-regulated kinase |
| FXa | Factor Xa |
| FXIa | Factor XIa |
| HU | Hindlimb unloading |
| ISS | International space station |
| MHC | Major histocompatibility complex |
| MML-V | Moloney murine leukemia virus |
| PI3K | Phosphatidylinositol 3-kinase |
| PVDF | Polyvinylidene difluoride |
| RT-qPCR | Reverse transcription-quantitative PCR |
| RPM | Random positioning machine |
| ROS | Reactive oxygen species |
| TLR | Toll-like receptors |