Wikimedia neighborhood · Wikidata observation Observed Graph-projection

Pelizaeus-Merzbacher disease

hypomyelinating leukodystrophy characterized by impaired myelin formation, nystagmus, spastic quadriplegia, ataxia, and developmental delay that has material basis in mutation in the PLP1 gene on chromosome Xq22

Provider: Wikidata. These recorded connections are observations, not Counterpedia claims. They do not establish source support.

Data and provenance

Provider: Wikidata · Entity ID: Q1876206

Release: sha256:f33228901a35b0683356002a46df9ceb11f399d05f17abb5c7c78256cbf38ba7

Graph membership is not truth. Each relation below is an observed typed edge the local Wikimedia graph bundle already materialized — not a corroborated, verified, or admitted claim. Bounded to 40 relations via an offset-index lookup (offset_index_binary_search), never a full scan of the bundle.Serving a published subset: joined entities + 1-hop neighborhood of 35,994 exact Wikipedia–Wikidata title matches. A subject that is not itself in that subset carries only the relations the subset recorded for it, so a small count here is the published scope and not a complete relationship inventory.

Development requests are not available on this deployment. The observed entity and its graph links remain readable.

1-hop relations (16)

Observed adjacency only. Each spoke is a typed edge already materialized in the graph, labeled by its recorded predicate — graph proximity is not support, corroboration, or admission. The links below are the accessible, no-JavaScript path to the same neighbors.

Follow a connection

Grouped by a fixed presentation taxonomy for legibility only. The grouping asserts no rank, truth, support, or standing — every observed edge is carried, none reordered by importance.

Identity & relations (6)

→ subclass of (P279)nervous system heredodegenerative diseaseObserved
Relationship details
Provider: Wikidata · Property: P279 · Direction: outgoing · Entity ID: Q19001236
→ instance of (P31)type of diseaseObserved
Relationship details
Provider: Wikidata · Property: P31 · Direction: outgoing · Entity ID: Q112193867
→ subclass of (P279)X-linked recessive diseaseObserved
Relationship details
Provider: Wikidata · Property: P279 · Direction: outgoing · Entity ID: Q55010090
→ instance of (P31)rare diseaseObserved
Relationship details
Provider: Wikidata · Property: P31 · Direction: outgoing · Entity ID: Q929833
→ subclass of (P279)eye degenerative diseaseObserved
Relationship details
Provider: Wikidata · Property: P279 · Direction: outgoing · Entity ID: Q18558225
→ subclass of (P279)hypomyelinating leukodystrophyObserved
Relationship details
Provider: Wikidata · Property: P279 · Direction: outgoing · Entity ID: Q28065591

Other connections (10)

→ Relationship name unavailable (P2888)http://identifiers.org/doid/DOID:3210Observed
Relationship details
Provider: Wikidata · Property: P2888 · Direction: outgoing
→ named after (P138)Ludwig MerzbacherObserved
Relationship details
Provider: Wikidata · Property: P138 · Direction: outgoing · Entity ID: Q92286
→ Relationship name unavailable (P5008)WikiProject MedicineObserved
Relationship details
Provider: Wikidata · Property: P5008 · Direction: outgoing · Entity ID: Q4099686
→ named after (P138)Friedrich Christoph PelizaeusObserved
Relationship details
Provider: Wikidata · Property: P138 · Direction: outgoing · Entity ID: Q97219
→ Relationship name unavailable (P2888)http://purl.obolibrary.org/obo/HP_0003269Observed
Relationship details
Provider: Wikidata · Property: P2888 · Direction: outgoing
→ Relationship name unavailable (P1995)neurologyObserved
Relationship details
Provider: Wikidata · Property: P1995 · Direction: outgoing · Entity ID: Q83042
→ Relationship name unavailable (P2888)http://purl.obolibrary.org/obo/DOID_3210Observed
Relationship details
Provider: Wikidata · Property: P2888 · Direction: outgoing
→ Relationship name unavailable (P2293)PLP1Observed
Relationship details
Provider: Wikidata · Property: P2293 · Direction: outgoing · Entity ID: Q14912011
→ Relationship name unavailable (P2888)http://www.orpha.net/ORDO/Orphanet_702Observed
Relationship details
Provider: Wikidata · Property: P2888 · Direction: outgoing
← Relationship name unavailable (P2293)PLP1Observed
Relationship details
Provider: Wikidata · Property: P2293 · Direction: incoming · Entity ID: Q14912011

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