Neuroprotective effects of pravastatin in cerebral venous infarction in a rat model
© 2023 The Authors..
Objectives: Pravastatin sodium is reported to have multiple beneficial effects in cerebral atherosclerosis and neuronal injury; however, the preventive effects on cerebral venous ischemia are still unknown. Herein, we aimed to examine the neuroprotective effects of transoral prior administration of pravastatin sodium against cerebral cortical venous ischemia with suppression of apoptosis.
Methods: Thirty 8-week-old male Wistar rats were divided equally into two study groups (n = 15 vs. n = 15); the pravastatin group was fed 1% pravastatin sodium with their usual diet for 2 weeks, while the control group only received the usual diet. Two-vein occlusion (2VO) model was applied for this study, and two adjacent cortical veins in each animal were permanently occluded photochemically with rose bengal dye. During photo-thrombosis, regional changes of the cerebral blood flow (CBF) in area of the venous ischemia were recorded. At 48-h after 2VO, animals were euthanized using perfusion fixation, and we histologically measured ratios of infarcted area to contralateral hemisphere, and counted Bax- and Bcl-2-positive cells in the penumbra to investigate the implications for apoptosis.
Results: The ratio of infarcted area was significantly decreased in the pravastatin group compared to the control group (P < 0.01). The number of Bax-positive cells also decreased significantly in the pravastatin group (P < 0.01). In contrast, immunolabeling for Bcl-2 was essentially negative in all areas in both groups. There were also no significant differences in regional CBF changes after 2VO between the two groups (P = 0.13).
Conclusions: Pre-emptive administration of pravastatin sodium mixed in the food has neuroprotective effects against cerebral cortical venous ischemia with suppression of apoptosis associated with inhibition of Bax expression but has little influence on regional CBF.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:14 |
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| Enthalten in: |
IBRO neuroscience reports - 14(2023) vom: 23. Juni, Seite 202-209 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sato, Fumiya [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 01.03.2023 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.ibneur.2023.02.002 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM353582980 |
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| 041 | |a eng | ||
| 100 | 1 | |a Sato, Fumiya |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Neuroprotective effects of pravastatin in cerebral venous infarction in a rat model |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 01.03.2023 | ||
| 500 | |a published: Electronic-eCollection | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © 2023 The Authors. | ||
| 520 | |a Objectives: Pravastatin sodium is reported to have multiple beneficial effects in cerebral atherosclerosis and neuronal injury; however, the preventive effects on cerebral venous ischemia are still unknown. Herein, we aimed to examine the neuroprotective effects of transoral prior administration of pravastatin sodium against cerebral cortical venous ischemia with suppression of apoptosis | ||
| 520 | |a Methods: Thirty 8-week-old male Wistar rats were divided equally into two study groups (n = 15 vs. n = 15); the pravastatin group was fed 1% pravastatin sodium with their usual diet for 2 weeks, while the control group only received the usual diet. Two-vein occlusion (2VO) model was applied for this study, and two adjacent cortical veins in each animal were permanently occluded photochemically with rose bengal dye. During photo-thrombosis, regional changes of the cerebral blood flow (CBF) in area of the venous ischemia were recorded. At 48-h after 2VO, animals were euthanized using perfusion fixation, and we histologically measured ratios of infarcted area to contralateral hemisphere, and counted Bax- and Bcl-2-positive cells in the penumbra to investigate the implications for apoptosis | ||
| 520 | |a Results: The ratio of infarcted area was significantly decreased in the pravastatin group compared to the control group (P < 0.01). The number of Bax-positive cells also decreased significantly in the pravastatin group (P < 0.01). In contrast, immunolabeling for Bcl-2 was essentially negative in all areas in both groups. There were also no significant differences in regional CBF changes after 2VO between the two groups (P = 0.13) | ||
| 520 | |a Conclusions: Pre-emptive administration of pravastatin sodium mixed in the food has neuroprotective effects against cerebral cortical venous ischemia with suppression of apoptosis associated with inhibition of Bax expression but has little influence on regional CBF | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a 2VO, two-vein occlusion | |
| 650 | 4 | |a Akt, protein kinase B | |
| 650 | 4 | |a BBB, blood-brain-barrier | |
| 650 | 4 | |a CAI, cerebral arterial ischemia | |
| 650 | 4 | |a CBF, cerebral blood flow | |
| 650 | 4 | |a CVI, cerebral venous ischemia | |
| 650 | 4 | |a Cerebral blood flow | |
| 650 | 4 | |a Cerebral cortex | |
| 650 | 4 | |a Cerebral ischemia | |
| 650 | 4 | |a HMG-CoA, 3-hydroxy 3-methylglutaryl coenzyme A | |
| 650 | 4 | |a HSP, heat shock protein | |
| 650 | 4 | |a IL-6, Interleukin-6 | |
| 650 | 4 | |a JNK, Jun-NH2-terminal kinase | |
| 650 | 4 | |a LDL, low-density lipoprotein | |
| 650 | 4 | |a LDU, Laser Doppler-unit | |
| 650 | 4 | |a MAPK, mitogen-activated protein kinase | |
| 650 | 4 | |a MCAO, middle cerebral artery occlusion | |
| 650 | 4 | |a Neuronal apoptosis | |
| 650 | 4 | |a PI3K, phosphatidylinositol 3-OH kinase | |
| 650 | 4 | |a Pravastatin sodium | |
| 650 | 4 | |a TNFα, Tumor Necrosis Factor‐α | |
| 650 | 4 | |a Vein | |
| 700 | 1 | |a Wajima, Daisuke |e verfasserin |4 aut | |
| 700 | 1 | |a Takeshima, Yasuhiro |e verfasserin |4 aut | |
| 700 | 1 | |a Nakagawa, Ichiro |e verfasserin |4 aut | |
| 700 | 1 | |a Kim, Taekyun |e verfasserin |4 aut | |
| 700 | 1 | |a Motoyama, Yasushi |e verfasserin |4 aut | |
| 700 | 1 | |a Park, Young-Soo |e verfasserin |4 aut | |
| 700 | 1 | |a Nakase, Hiroyuki |e verfasserin |4 aut | |
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