Long-Term Treatment With San’o-Shashin-To, a Kampo Medicine, Markedly Ameliorates Cardiac Ischemia-Reperfusion Injury in Ovariectomized Rats via the Redox-Dependent Mechanism
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- Sakanashi Mayuko
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Matsuzaki Toshihiro
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Noguchi Katsuhiko
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Nakasone Junko
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Sakanashi Makiko
- Department of Anesthesiology, Graduate School of Medicine, University of the Ryukyus
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- Uchida Taro
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Kina-Tanada Mika
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Kubota Haruaki
- Department of Anesthesiology, Graduate School of Medicine, University of the Ryukyus
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- Arakaki Kumiko
- Third, Departments of Internal Medicine, Graduate School of Medicine, University of the Ryukyus
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- Tanimoto Akihide
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences
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- Yanagihara Nobuyuki
- Department of Pharmacology, School of Medicine, University of Occupational and Environmental Health
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- Sakanashi Matao
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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- Ohya Yusuke
- Third, Departments of Internal Medicine, Graduate School of Medicine, University of the Ryukyus
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- Masuzaki Hiroaki
- Second, Departments of Internal Medicine, Graduate School of Medicine, University of the Ryukyus
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- Ishiuchi Shogo
- Department of Neurosurgery, Graduate School of Medicine, University of the Ryukyus
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- Sugahara Kazuhiro
- Department of Anesthesiology, Graduate School of Medicine, University of the Ryukyus
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- Tsutsui Masato
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
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Abstract
Background: Hormone replacement therapy has failed to reduce ischemic cardiovascular events in climacteric women. To explore alternative therapy, we examined whether san’o-shashin-to (TJ-113), a kampo medicine, ameliorates cardiac ischemia-reperfusion (IR) injury in a climacteric rat model. Methods and Results: Cardiac function and infarct size after IR were significantly exacerbated in ovariectomized rats as compared with sham-operated rats, whereas long-term treatment with a clinical dosage of TJ-113 for 4 weeks markedly improved these functional and morphological changes. Myocardial inducible nitric oxide synthase (iNOS) expression and peroxynitrite levels were significantly higher in ovariectomized rats compared with sham-operated rats, and long-term TJ-113 treatment significantly reduced these oxidative changes. Furthermore, myocardial manganese superoxide dismutase (Mn-SOD) activity was significantly lower in ovariectomized than in sham-operated rats, and long-term TJ-113 treatment significantly restored antioxidant activity. Importantly, those beneficial actions of TJ-113 were significantly inhibited by the estrogen receptor antagonist, fulvestrant, and the phytoestrogen, emodin, a TJ-113 ingredient, mimicked the actions of TJ-113, suggesting involvement of emodin in the effects of TJ-113. Conclusions: These results provide the first evidence that long-term treatment with a clinical dosage of TJ-113 markedly ameliorates cardiac IR injury in ovariectomized rats via inhibition of iNOS expression, suppression of peroxynitrite formation, and restoration of Mn-SOD activity. TJ-113 may be a novel therapeutic option in the treatment of ischemic heart disease in climacteric women. (Circ J 2013; 77: 1827–1837)<br>
Journal
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- Circulation Journal
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Circulation Journal 77 (7), 1827-1837, 2013
The Japanese Circulation Society
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Details 詳細情報について
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- CRID
- 1390282680080139904
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- NII Article ID
- 10031173765
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- NII Book ID
- AA11591968
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- COI
- 1:STN:280:DC%2BC3srotVelsA%3D%3D
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- ISSN
- 13474820
- 13469843
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- PubMed
- 23615023
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed