diff --git a/instances/disease/alzheimersDisease.jsonld b/instances/disease/alzheimersDisease.jsonld
index 52a7c099..25fdfd2f 100644
--- a/instances/disease/alzheimersDisease.jsonld
+++ b/instances/disease/alzheimersDisease.jsonld
@@ -4,11 +4,18 @@
   },
   "@id": "https://openminds.ebrains.eu/instances/disease/alzheimersDisease",
   "@type": "https://openminds.ebrains.eu/controlledTerms/Disease",
-  "definition": null,
+  "definition": "A progressive, neurodegenerative disease characterized by loss of function and death of nerve cells in several areas of the brain leading to loss of cognitive function such as memory and language.",
   "description": null,
-  "interlexIdentifier": null,
-  "knowledgeSpaceLink": null,
+  "interlexIdentifier": "http://uri.interlex.org/base/ilx_0751626",
+  "knowledgeSpaceLink": "https://knowledge-space.org/wiki/BIRNLEX:2092#alzheimer-s-disease",
   "name": "Alzheimer's disease",
-  "preferredOntologyIdentifier": "http://purl.obolibrary.org/obo/DOID_10652",
-  "synonym": null
+  "preferredOntologyIdentifier": "http://purl.obolibrary.org/obo/MONDO_0004975",
+  "synonym": [
+    "AD",
+    "Alzheimer dementia",
+    "Alzheimer disease",
+    "Alzheimers dementia",
+    "Alzheimers disease",
+    "Alzheimer's dementia"
+  ]
 }