Diesel exhaust particles exposure exacerbates pro-thrombogenic plasma features ex-vivo after cerebral ischemia and accelerates tPA-induced clot-lysis in hypertensive subjects
The combustion of fossil fuels, mainly by diesel engines, generates Diesel Exhaust Particles (DEP) which are the main source of Particulate Matter (PM), a major air pollutant in urban areas. These particles are a risk factor for stroke with 5.6% of cases attributed to PM exposure. Our aim was to evaluate the effect of DEP exposure on clot formation and lysis in the context of stroke. An ex-vivo clot formation and lysis turbidimetric assay has been conducted in human and mouse plasma samples from ischemic stroke or control subjects exposed to DEP or control conditions. Experimental DEP exposure was achieved by nasal instillation in mice, or by ex-vivo exposure in human plasma. Results show consistent pro-thrombogenic features in plasma after human ischemic stroke and mouse cerebral ischemia (distal MCAo), boosted by the presence of DEP. Otherwise, thrombolysis times were increased after ischemia in chronically exposed mice but not in the DEP exposed group. Finally, subjects living in areas with high PM levels presented accelerated thrombolysis compared to those living in low polluted areas. Overall, our results point at a disbalance of the thrombogenic/lytic system in presence of DEP which could impact on ischemic stroke onset, clot size and thrombolytic treatment.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:44 |
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| Enthalten in: |
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism - 44(2024), 5 vom: 01. Apr., Seite 772-786 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Arrúe, Mercedes [VerfasserIn] |
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| Links: |
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| Themen: |
Air pollution |
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| Anmerkungen: |
Date Completed 25.04.2024 Date Revised 25.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1177/0271678X231214826 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM364658614 |
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| 245 | 1 | 0 | |a Diesel exhaust particles exposure exacerbates pro-thrombogenic plasma features ex-vivo after cerebral ischemia and accelerates tPA-induced clot-lysis in hypertensive subjects |
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| 520 | |a The combustion of fossil fuels, mainly by diesel engines, generates Diesel Exhaust Particles (DEP) which are the main source of Particulate Matter (PM), a major air pollutant in urban areas. These particles are a risk factor for stroke with 5.6% of cases attributed to PM exposure. Our aim was to evaluate the effect of DEP exposure on clot formation and lysis in the context of stroke. An ex-vivo clot formation and lysis turbidimetric assay has been conducted in human and mouse plasma samples from ischemic stroke or control subjects exposed to DEP or control conditions. Experimental DEP exposure was achieved by nasal instillation in mice, or by ex-vivo exposure in human plasma. Results show consistent pro-thrombogenic features in plasma after human ischemic stroke and mouse cerebral ischemia (distal MCAo), boosted by the presence of DEP. Otherwise, thrombolysis times were increased after ischemia in chronically exposed mice but not in the DEP exposed group. Finally, subjects living in areas with high PM levels presented accelerated thrombolysis compared to those living in low polluted areas. Overall, our results point at a disbalance of the thrombogenic/lytic system in presence of DEP which could impact on ischemic stroke onset, clot size and thrombolytic treatment | ||
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| 650 | 4 | |a Stroke | |
| 650 | 4 | |a air pollution | |
| 650 | 4 | |a clot | |
| 650 | 4 | |a diesel exhaust particles | |
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| 700 | 1 | |a Elicegui, Amaia |e verfasserin |4 aut | |
| 700 | 1 | |a de Homdedeu, Miquel |e verfasserin |4 aut | |
| 700 | 1 | |a Cruz, María-Jesús |e verfasserin |4 aut | |
| 700 | 1 | |a Simats, Alba |e verfasserin |4 aut | |
| 700 | 1 | |a Rodriguez, Susana |e verfasserin |4 aut | |
| 700 | 1 | |a Buxó, Xavier |e verfasserin |4 aut | |
| 700 | 1 | |a Garcia-Rodriguez, Nicolás |e verfasserin |4 aut | |
| 700 | 1 | |a Pizarro, Jesús |e verfasserin |4 aut | |
| 700 | 1 | |a Turner, Michelle C |e verfasserin |4 aut | |
| 700 | 1 | |a Delgado, Pilar |e verfasserin |4 aut | |
| 700 | 1 | |a Rosell, Anna |e verfasserin |4 aut | |
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