ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2025
Multimodal and serial MRI monitors brain peri-hematomal injury and repair mechanisms after experimental intracerebral hemorrhage.
Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Neutrophil Extracellular Traps in Patients with Intracerebral Hemorrhage.Neurocritical care · 2026Article
- Red Blood Cell Glycation Triggers In Vivo Cerebral Erythrophagocytosis in Adult Zebrafish in a Model Mimicking Hemorrhagic Stroke.Comprehensive physiology · 2026Article
- Role of Nanotechnology in Ischemic Stroke: Advancements in Targeted Therapies and Diagnostics for Enhanced Clinical Outcomes.Journal of functional biomaterials · 2025Review
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6 authors.
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Abstract
The peri-hematomal area (PHA) emerges as a key but puzzling interface where edematous and neuroinflammatory events co-occur after intracerebral hemorrhage (ICH), while being considered either as deleterious or protective. We aimed at unraveling the pathogeny and natural history of PHA over time after experimental ICH. Male and female rats were longitudinally followed up to day 7 using multimodal brain MRI. MRI measures were compared to neuropathological and behavioural results. While the peak of PHA volume at day 3 was predictive for spontaneous locomotor deficit without sex-effect, its drop at day 7 fitted with locomotor recovery and hematoma resorption. The PHA highest water density was observed at onset despite microvascular hypoperfusion, taken over by blood-brain barrier (BBB) leakage at day 3. Water density dropped at day 7, when vascular integrity was normalized, and the highest number of reactive astrocytes, microglial cells, and siderophages found. This study shows that the PHA with edematous component is hematoma-driven at onset and BBB-driven at day 3, but this excess neuroinflammation enabled PHA volume reduction and significant hematoma resorption as soon as day 7. Therapeutic interventions should consider this pathogeny, and be monitored by multimodal MRI in preclinical ICH models.
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