diff --git a/inbox/queue/2026-05-09-pmc12676184-mendelian-randomization-dementia-risk-factors-review.md b/inbox/null-result/2026-05-09-pmc12676184-mendelian-randomization-dementia-risk-factors-review.md
similarity index 98%
rename from inbox/queue/2026-05-09-pmc12676184-mendelian-randomization-dementia-risk-factors-review.md
rename to inbox/null-result/2026-05-09-pmc12676184-mendelian-randomization-dementia-risk-factors-review.md
index 298fa3cd1..da58fa5e5 100644
--- a/inbox/queue/2026-05-09-pmc12676184-mendelian-randomization-dementia-risk-factors-review.md
+++ b/inbox/null-result/2026-05-09-pmc12676184-mendelian-randomization-dementia-risk-factors-review.md
@@ -7,10 +7,11 @@ date: 2025-01-01
 domain: health
 secondary_domains: []
 format: research
-status: unprocessed
+status: null-result
 priority: high
 tags: [Mendelian-randomization, dementia, social-isolation, causal-inference, Lancet-Commission, evidence-quality, non-clinical-determinants]
 intake_tier: research-task
+extraction_model: "anthropic/claude-sonnet-4.5"
 ---
 
 ## Content