Effect of calcium or freezing and thawing on MCP-1 assay
| Sample . | None . | Additional additive . | |
|---|---|---|---|
| EDTA . | Calcium . | ||
| EDTA | 124.5 (14.7) | 123.9 (13.9) | |
| EDTA −80°C | 127.2 (10.7) | 121.9 (15.8) | |
| Serum | 161.3 (22.9) | 155.1 (24.0) | |
| Serum −80°C | 156.5 (23.0) | 161.3 (24.8) | |
| Heparin | 236.9 (22.7) | ||
| Heparin −80°C | 233.4 (25.2) | ||
| Sample . | None . | Additional additive . | |
|---|---|---|---|
| EDTA . | Calcium . | ||
| EDTA | 124.5 (14.7) | 123.9 (13.9) | |
| EDTA −80°C | 127.2 (10.7) | 121.9 (15.8) | |
| Serum | 161.3 (22.9) | 155.1 (24.0) | |
| Serum −80°C | 156.5 (23.0) | 161.3 (24.8) | |
| Heparin | 236.9 (22.7) | ||
| Heparin −80°C | 233.4 (25.2) | ||
Data represent the geometric mean (SEM) of 5 donors (in pg/mL).