Background
Materials and methods
Patient population and sample collection
Variables | Values |
---|---|
TBI | |
Age, years, median (range) | 30 (21–55) |
Gender, n (%) | |
Males | 13 (81%) |
Females | 3 (19%) |
Mechanism of injury, n (%) | |
Motor vehicle | 6 (38%) |
Motor bicycle | 4 (25%) |
Pedestrian | 2 (12%) |
Penetrating | 1 (6%) |
Fall/jump | 3 (19%) |
GCS, median (range) | 5 (3–8) |
ISS, median (IQR) | 37 (17–50) |
Marshall score*, median (range) | 3 (2–6) |
Primary brain injury type, n (%) | |
Focal | 8 (50%) |
Diffuse | 7 (44%) |
Focal and diffuse | 1 (6%) |
Hypoxia, n (%) | 6 (38%) |
GOSE**, median (range) | 4 (1–6) |
Unfavorable outcome, n (%) | 11 (69%) |
Favorable outcome, n (%) | 3 (19%) |
Not reported, n (%) | 2 (12%) |
Control | |
Age, years, median (range) | 70 (38–85) |
Gender, n (%) | |
Males | 5 (45%) |
Females | 6 (55%) |
Control patients and sample collection
LC–MS/MS
Statistical analysis
Data availability
Results
Patient demographics
Proteomics overview
D0 | D1 | D2 | D4 | D7 | D10 |
---|---|---|---|---|---|
S100A12 | MPO | ELANE | ELANE | ELANE | ELANE |
HIST2H3A | ELANE | MPO | MPO | MPO | S100P |
APOC2 | CAMP | CAMP | S100P | S100P | S100A12 |
APOF | S100A12 | S100A12 | S100A12 | S100A12 | PSMB4 |
FGB | CHI3L2 | CTSG | CAMP | MMP8 | CTSG |
APOC3 | CTSG | CHI3L2 | STOM | PSMB4 | HCLS1 |
FGG | MMP8 | S100A8 | HIST2H2BE | CTSG | MPO |
PLEK | S100A8 | S100A9 | CTSG | CAMP | MMP8 |
GCA | S100A9 | MMP8 | HIST2H3A | S100A9 | GLRX |
HIST1H2AJ | FCGR3B | FCGR3B | MMP8 | STOM | S100A9 |
Functional enrichment analysis
Differential regulation of known proteins of interest
Identification of novel downregulated proteins
Protein changes associated with patient outcomes
Protein | Timepoint | Log2 Fold change vs. Control | Log odds | P-value |
---|---|---|---|---|
GM2A | D0 | 3.51 | − 3.67046E+15 | < 2e−16 |
CLSTN1 | D2 | 2.73 | − 2.827E+15 | < 2e−16 |
FAT2 | D2 | 6.62 | 3.26394E+15 | < 2e−16 |
GANAB | D2 | 2.09 | 1.06114E+15 | < 2e−16 |
LUM | D2 | − 0.851 | − 5.7196E+15 | < 2e−16 |
NPTX1 | D2 | 2.9 | − 3.5895E+15 | < 2e−16 |
SFRP2 | D4 | − 2.45 | − 2.33829E+15 | < 2e−16 |