Table 3 Abnormal B vitamin levels and metabolites in patients with DSP and DM.
| Patient | Age/gender (years) | B1 level (nl: 9–44 nmol/l) | B6 level (nl: 5–50 μg/l) | B12 level (nl: >200 pg/ml) | MMA level (nl: >0.40 μg/l) | Homocysteine level (nl: 0–13 μmol/l) |
|---|---|---|---|---|---|---|
| LM | 74/F | 14 | 12 | 430 | 0.98* | ND |
| RF | 81/F | 71 | 128* | >2000 | 0.48 | 16* |
| MO | 61/F | 8* | 10 | 557 | 0.27 | 9 |
| TC | 70/M | 34 | 4* | 374 | 0.22 | 15* |
| PR | 61/M | 9 | 3* | 462 | 0.44* | 12 |
| TCC | 73/M | 3* | 9 | 525 | ND | ND |
| CS | 62/F | 39 | 2* | 487 | 0.42* | 9 |
| NP | 64/M | 14 | 57 | 364 | ND | ND |
| EB | 54/F | 7* | 30 | 864 | 0.39 | ND |
| JA | 69/M | 8* | 19 | 453 | 0.36 | 14* |
| HK | 73/M | 12 | 4* | 348 | 0.54* | 9 |
| DN | 45/F | 38 | 3* | 546 | 0.15 | 7 |
| CH | 47/F | 22 | 2* | 602 | ND | ND |
| CJS | 45/F | 9 | 3* | 249 | 0.16 | 9 |
| WB | 78/M | <7* | 7 | 313 | ND | ND |
| PW | 68/F | <7* | 10 | 731 | 0.37 | ND |
| JN | 67/F | 35 | 3* | 642 | 0.18 | 17* |
| SP | 26/F | 7* | 8 | 361 | 0.10 | 6 |
| MS | 72/F | 7* | 6 | 498 | 0.58* | 17* |
| BB | 75/M | 14 | 4* | 277 | 0.37 | 16* |
| LA | 54/F | <7* | 13 | 445 | 0.35 | 19* |
| GK | 72/F | <7* | 6 | 221 | ND | ND |
| LC | 62/M | 25 | 4* | 605 | 0.48* | ND |
| WL | 66/M | 47 | 17 | 167* | ND | ND |
| RS | 68/M | 39 | 170* | 250 | ND | ND |
| JC | 73/F | 10 | 27 | 671 | 0.59* | 16* |
| EC | 67/M | 36 | 7 | 361 | 0.56* | 9 |
| CB | 36/F | 43 | 3* | 109* | 0.36 | 16* |
MMA, methylmalonic acid; ND, not done; nl, normal value.
*Abnormal values.