Experimental and clinical data in HUS patients 1 through 4 and their parents
Patient/country . | Age at debut/age at sampling, y . | No. episodes . | Sex . | FH . | FH level, %40 (normal range, 69%-154%) . | FH function* . | C3 level, g/L (normal range, 0.77-1.38 g/L) . | Clinical features at sampling . | |
---|---|---|---|---|---|---|---|---|---|
Heterozygous mutation† . | Polymorphism† . | ||||||||
Patient 1/Sweden | 30/32, 33, 34 | 4 | F | V1168E, SCR20 | E936D SCR16, N1050Y SCR18 | 155 | ↓ | 0.59 | Reduced renal function, plasma exchange every 7-14 d |
Mother | V1168E | N1050Y | 152 | ↓/N‡ | 1.81 | Unaffected | |||
Father | E936D | 100 | N | 1.23 | Lymphosarcoma | ||||
Patient 2/USA§ | 3/5, 8 | 1 | F | E1198K, SCR20 | — | 105 | ↓ | 1.16 | Renal failure hemodialysis |
Mother | — | — | 146 | N | 1.84 | Unaffected | |||
Father | — | — | 97 | N | 1.18 | Unaffected | |||
Patient 3/Sweden | 20/23, 25, 26 | 4 (at least) | F | C870R, SCR15 | 672Q SCR11 (G homozygote), 936D | 58 | ↓ | 0.50 | Renal failure, hemodialysis, and after transplantation |
Mother | — | E936D | 95 | N | 1.13 | Unaffected | |||
Father | C870R | E936D | 50 | N | 0.71 | Unaffected | |||
Patient 4/Germany‖ | < 1/2, 3 | 2 | M | E1198 stop | C-257T, (C9669T) promoter | 132 | ↓ | 0.84¶ | Renal failure, peritoneal dialysis |
Mother | E1198 stop | C-257T | 102 | N | 0.68¶ | Unaffected | |||
Father | — | C-257T | 98 | N | 1.38¶ | Unaffected |
Patient/country . | Age at debut/age at sampling, y . | No. episodes . | Sex . | FH . | FH level, %40 (normal range, 69%-154%) . | FH function* . | C3 level, g/L (normal range, 0.77-1.38 g/L) . | Clinical features at sampling . | |
---|---|---|---|---|---|---|---|---|---|
Heterozygous mutation† . | Polymorphism† . | ||||||||
Patient 1/Sweden | 30/32, 33, 34 | 4 | F | V1168E, SCR20 | E936D SCR16, N1050Y SCR18 | 155 | ↓ | 0.59 | Reduced renal function, plasma exchange every 7-14 d |
Mother | V1168E | N1050Y | 152 | ↓/N‡ | 1.81 | Unaffected | |||
Father | E936D | 100 | N | 1.23 | Lymphosarcoma | ||||
Patient 2/USA§ | 3/5, 8 | 1 | F | E1198K, SCR20 | — | 105 | ↓ | 1.16 | Renal failure hemodialysis |
Mother | — | — | 146 | N | 1.84 | Unaffected | |||
Father | — | — | 97 | N | 1.18 | Unaffected | |||
Patient 3/Sweden | 20/23, 25, 26 | 4 (at least) | F | C870R, SCR15 | 672Q SCR11 (G homozygote), 936D | 58 | ↓ | 0.50 | Renal failure, hemodialysis, and after transplantation |
Mother | — | E936D | 95 | N | 1.13 | Unaffected | |||
Father | C870R | E936D | 50 | N | 0.71 | Unaffected | |||
Patient 4/Germany‖ | < 1/2, 3 | 2 | M | E1198 stop | C-257T, (C9669T) promoter | 132 | ↓ | 0.84¶ | Renal failure, peritoneal dialysis |
Mother | E1198 stop | C-257T | 102 | N | 0.68¶ | Unaffected | |||
Father | — | C-257T | 98 | N | 1.38¶ | Unaffected |
— indicates not found.
Factor H dysfunction detected by hemolysis of sheep erythrocytes as described.41 Function normalized after addition of FH (final concentration 25 μg/mL) to patient serum.
Genomic DNA was sequenced and screened for mutations in the FH genes as described.5 Polymorphisms associated with increased risk for developing HUS are presented.42,43
FH function was tested twice. Once it was normal, and once it was slightly reduced.
The patient was previously described in Vaziri-Sani et al.5
The patient was previously described in Lang et al.44
Assayed in Tübingen (normal range, 0.60-1.60 g/L).