| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Hutchinson-Gilford syndrome | Is a | False | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Metageria | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Acrogeria | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Neonatal pseudo-hydrocephalic progeroid syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Wrinkly skin syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Geroderma osteodysplastica | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Werner syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Progeroid short stature with pigmented nevi | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Atypical Werner syndrome | Is a | False | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Ehlers-Danlos syndrome progeroid type | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Pseudoprogeria syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Progeroid syndrome Petty type | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Ogden syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Nestor Guillermo progeria syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Mandibular hypoplasia, deafness, progeroid syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Lamin A/C related cardiocutaneous progeria syndrome | Is a | False | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Progeroid and marfanoid aspect, lipodystrophy syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Acroosteolysis, keloid-like lesions, premature aging syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Leprechaunism syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Retinitis pigmentosa, hearing loss, premature aging, short stature, facial dysmorphism syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Laminopathy with premature aging | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Progeroid features, hepatocellular carcinoma predisposition syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  | 
| Keppen Lubinsky syndrome | Is a | True | Premature aging syndrome | Inferred relationship | Existential restriction modifier |  |