| CSF | cerebrospinal fluid |
| CNS | central nervous system |
| CRP | C-reactive protein |
| DCI | delayed cerebral ischemia |
| EC | endothelial cell |
| ELISA | enzyme-linked immunosorbent assay |
| Hb | hemoglobin |
| HCPEpiC | human choroid plexus epithelial cell |
| ICAM-1 | intercellular adhesion molecule 1 |
| IL | interleukin |
| IVH | intraventricular hemorrhage |
| LDH | lactate dehydrogenase |
| miRNA | microRNA |
| NF-κB | nuclear factor kappa-B |
| Ox. Hb | oxidized hemoglobin |
| PCT | procalcitonin |
| RBC | red blood cell |
| RT | room temperature |
| RT-qPCR | real-time quantitative polymerase chain reaction |
| S100B | S100 calcium-binding protein B |
| SAH | subarachnoid hemorrhage |
| TLR4 | Toll-like receptor 4 |
| TNF-α | tumor necrosis factor alpha |
| UPL | Universal ProbeLibrary |
| VCAM-1 | vascular cell adhesion molecule 1 |
| WBC | white blood cell |