NADPH Oxidase Isoforms and Anti-hypertensive Effects of Atorvastatin Demonstrated in Two Animal Models
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- Cui Wenhao
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Matsuno Kuniharu
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Iwata Kazumi
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Ibi Masakazu
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Katsuyama Masato
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Kakehi Tomoko
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Sasaki Mika
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Ikami Kanako
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Zhu Kai
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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- Yabe-Nishimura Chihiro
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Japan
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抄録
Beneficial effects of statins on cardiovascular diseases have been attributed to decreased generation of reactive oxygen species (ROS). We tested the hypothesis that atorvastatin protects against the development of hypertension by reducing levels of NADPH oxidase–derived ROS in two hypertensive animal models. Atorvastatin was given to mice chronically infused with angiotensin (Ang) II or to apolipoprotein E (ApoE)–deficient mice fed a high-fat diet. Increased mean blood pressure (MBP) demonstrated in both animal models was significantly suppressed by atorvastatin with reduced ROS production in the aorta. Treatment with atorvastatin did not alter the mRNA level of NOX1, a catalytic subunit of NADPH oxidase, but decreased the levels of other NOX isoforms, NOX2 and NOX4, in the ApoE-deficient mice fed a high-fat diet. In the Ang II–infused model treated with statin, only the NOX4 mRNA level was reduced. Membrane translocation of Rac1 was significantly reduced in the Ang II–infused mice treated with atorvastatin. Finally, atorvastatin administered to Ang II–infused mice lacking the Nox1 gene elicited an additional decline in MBP compared to Nox1-deficient mice treated with vehicle. Together, these findings suggest that reduced expression and activity of the isoforms of NADPH oxidase, involving NOX1, NOX2, and possibly NOX4, mediate the anti-hypertensive effect of atorvastatin.<br>
収録刊行物
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- Journal of Pharmacological Sciences
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Journal of Pharmacological Sciences 111 (3), 260-268, 2009
公益社団法人 日本薬理学会
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詳細情報 詳細情報について
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- CRID
- 1390001205180798464
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- NII論文ID
- 10026154161
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- NII書誌ID
- AA11806667
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- ISSN
- 13478648
- 13478613
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- NDL書誌ID
- 10453486
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可