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{"created_at":"2026-04-06T10:19:19.572 {"created_at":"2026-04-06T10:19:19.572765+00:00","dedupe_key":"signal_enriched:opportunity_research_delta:b3df50819fe28abb","evidence_event_ids":["evt_8ef73623254b"],"signal_type":"opportunity_research_delta","source":"opportunity_research_ingestor","value":{"aggregator_url":"https://www.nature.com/articles/s43587-026-01096-0","as_of":"2026-04-06T10:19:19.572765+00:00","canonical_url":"https://www.nature.com/articles/s43587-026-01096-0","enrichment":{"aggregator_url":"https://www.nature.com/articles/s43587-026-01096-0","article_chars":2678,"article_truncated":false,"blocked_reason":null,"candidate_id":"sc_00a9b8fcb6fc2d7d","canonical_host":"nature.com","canonical_is_aggregator":false,"canonical_url":"https://www.nature.com/articles/s43587-026-01096-0","content_type":"text/html; charset=\"utf-8\"","enriched_at":"2026-04-06T10:20:31.731692+00:00","extraction_method":"heuristic","fetched_description":"The full impact of APOE4 (apolipoprotein E4), the strongest genetic risk factor for Alzheimer\u2019s disease (AD), on neuronal and network function remains unclear, particularly during early preclinical stages of disease. Here we show that young APOE4 knockin (E4-KI) mice exhibit hippocampal region-specific network hyperexcitability that predicts later cognitive deficits. This early phenotype arises from cell-type-specific subpopulations of smaller, hyperexcitable neurons and is eliminated by selective removal of neuronal APOE4. With aging, E4-KI mice develop granule cell hyperexcitability, progressive inhibitory dysfunction and excitation\u2013inhibition imbalance in the dentate gyrus. Single-nucleus RNA sequencing with multilevel gene filtering reveals age-dependent and cell-type-specific transcri","fetched_title":"Neuronal APOE4-induced early hippocampal network hyperexcitability in Alzheimer\u2019s disease pathogenesis | Nature Aging","final_url":"https://www.nature.com/articles/s43587-026-01096-0","html_truncated":true,"paywall_likely":false,"publisher_domain":"nature.com","publisher_resolution":"canonical_url","requested_url":"https://www.nature.com/articles/s43587-026-01096-0","source_event_id":"evt_8ef73623254b","source_quality":"high","status_code":200,"version":"signal_enrichment_v2"},"fp":"c92790df80b5e644","published_at":"","publisher_domain":"nature.com","query":"Morpho moved last latest developments Morpho moved last hours corroboration","signal_understanding":{"analysis_basis":"article","claim_confidence":0.9,"dates_mentioned":["03 April 2026"],"entities":[{"asset_class":"biotechnology","name":"APOE4","relevance":"high","symbol":"APOE","type":"gene"}],"event_type":"research","information_gaps":["The specific mechanisms by which APOE4 induces hyperexcitability are not fully detailed.","The long-term implications of these findings on Alzheimer's disease progression remain unclear."],"key_facts":["APOE4 is the strongest genetic risk factor for Alzheimer's disease.","E4-KI mice show hippocampal hyperexcitability that is eliminated by removing neuronal APOE4.","Age-dependent transcriptional changes were identified through single-nucleus RNA sequencing."],"numeric_claims":[],"primary_claim":"Young APOE4 knockin mice exhibit hippocampal region-specific network hyperexcitability that predicts later cognitive deficits.","relevance_score":0.8,"sentiment":"neutral","source_quality":"high","summary":"The study identifies early hippocampal network hyperexcitability in young APOE4 knockin mice, which predicts later cognitive deficits and is linked to Alzheimer's disease pathogenesis.","topics":["Alzheimer's disease","neuroscience","genetics"]},"snippet":"The full impact of APOE4 (apolipoprotein E4), the strongest genetic risk factor for Alzheimer's disease (AD), on neuronal and network function remains ...","source":"web_search","source_domain":"nature.com","summary":"The full impact of APOE4 (apolipoprotein E4), the strongest genetic risk factor for Alzheimer's disease (AD), on neuronal and network function remains ...","title":"Neuronal APOE4-induced early hippocampal network ... - Nature","url":"https://www.nature.com/articles/s43587-026-01096-0"}}... |