TABLE 3.
Anti-GQ1b Ig class and IgG subclass titers in serum of MFS patients
| Patient | Preceding infectionb | DAOc | Titer of anti-GQ1b Ig classa:
|
Titer of anti-GQ1b IgG subclassa:
|
|||||
|---|---|---|---|---|---|---|---|---|---|
| IgA | IgG | IgM | IgG1 | IgG2 | IgG3 | IgG4 | |||
| 1 | Resp | 6 | 3.24 | 64.06 | 3.73 | 1.40 | 2.70 | 29.70 | 0.00 |
| 2 | Resp | 7 | 30.00 | 1.67 | 5.10 | 3.80 | 17.50 | 0.50 | |
| 3 | Resp | 6 | 1.35 | 17.50 | 2.97 | 0.43 | 0.60 | 7.57 | 0.00 |
| 4 | Resp | 7 | 4.71 | 15.50 | 1.10 | 0.17 | 0.50 | 7.63 | 0.00 |
| 5 | Resp | 10 | 2.76 | 3.56 | 2.53 | 1.90 | 0.31 | 0.00 | 0.02 |
| 6 | Resp | 2 | 2.38 | 0.00 | 0.04 | 1.27 | 0.01 | ||
| 7 | Gast/C.j. | 61 | 12.63 | 1.33 | 2.35 | 0.49 | 9.40 | 0.12 | |
| 8 | Gast/C.j. | 18 | 3.71 | 2.56 | 5.00 | 0.11 | 1.37 | 0.05 | 0.00 |
| 9 | Gast/C.j. | 9 | 4.00 | 1.09 | 2.13 | 0.13 | 0.54 | 0.02 | 0.01 |
| 10 | Gast | 5 | 1.35 | 2.00 | 17.07 | 0.17 | 1.16 | 0.00 | 0.00 |
| 11 | Gast | 11 | 1.47 | 1.38 | 0.17 | 1.38 | 0.02 | 0.00 | |
| 12 | Unknown | 5 | 1.59 | 6,625.00 | 0.00 | 40.00 | 4,330.00 | 0.00 | |
| 13 | Unknown | 7 | 21.65 | 6.31 | 4.30 | 2.13 | 1.64 | 0.25 | 0.08 |
a
Anti-GQ1b titers as determined with the earliest serum samples available, diluted 1:20 and 1:2 for Ig class and IgG subclass determinations, respectively. Ig class titers are given as ΔE/cutoff ratios. Bold type indicates the predominant Ig class or IgG subclass.
b
Resp, respiratory; Gast, gastrointestinal; C.j., C. jejuni infection.
c
DAO, day after onset of neurological symptoms.