TABLE 1.
Intra-assay variabilitya
| CIRID control sample | Concn (CV) ofb:
|
|||||
|---|---|---|---|---|---|---|
| β2M (mg/liter) (n = 10) | NPT (nmol/liter) (n = 10) | sIL-2R (U/ml) (n = 10) | sTNF-RII (ng/ml) (n = 10) | TNF-α (pg/ml) (n = 10) | IFN-γ (U/liter) (n = 9) | |
| Normal | 0.69 ± 0.03 (4.6) | 4.5 ± 0.33 (7.4) | 282 ± 9.7 (3.4) | 1.67 ± 0.06 (3.6) | 7.36 ± 0.98 (13.0) | <50 (NA)c |
| Elevated | 2.62 ± 0.06 (2.4) | 18.7 ± 1.04 (5.6) | 765 ± 40 (5.3) | 4.57 ± 0.17 (3.9) | 38.2 ± 1.89 (4.9) | 562 ± 30 (5.3) |
a
All replicates were obtained from the Center for Interdisciplinary Research in Immunology and Disease (CIRID), as described in Materials and Methods.
b
Values are means ± standard deviations; CVs are percentages. NPT, neopterin.
c
<50, less than lower limit of detection. NA, not applicable.