Pharmacology in Health Food:Metabolism of Quercetin In Vivo and Its Protective Effect Against Arteriosclerosis
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概要
- 論文の詳細を見る
Quercetin, a member of the bioflavonoids family, has been proposed to have anti-atherogenic, anti-inflammatory, and anti-hypertensive properties leading to the beneficial effects against cardiovascular diseases. It was recently demonstrated that quercetin 3-O-β-D-glucuronide (Q3GA) is one of the major quercetin conjugates in human plasma, in which the aglycone could not be detected. Although most of the in vitro pharmacological studies have been carried out using only the quercetin aglycone form, experiments using Q3GA would be important to discover the preventive mechanisms of cardiovascular diseases by quercetin in vivo. Therefore we examined the effects of the chemically synthesized Q3GA, as an in vivo form, on vascular smooth muscle cell (VSMC) disorders related to the progression of arteriosclerosis. Platelet-derived growth factor–induced cell migration and proliferation were inhibited by Q3GA in VSMCs. Q3GA attenuated angiotensin II–induced VSMC hypertrophy via its inhibitory effect on JNK and the AP-1 signaling pathway. Q3GA scavenged 1,1-diphenyl-2-picrylhydrazyl radical measured by the electron paramagnetic resonance method. In addition, immunohistochemical studies with monoclonal antibody 14A2 targeting the Q3GA demonstrated that the positive staining specifically accumulates in human atherosclerotic lesions, but not in the normal aorta. These findings suggest Q3GA would be an active metabolite of quercetin in plasma and may have preventative effects on arteriosclerosis relevant to VSMC disorders.
- 社団法人 日本薬理学会の論文
著者
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吉栖 正典
奈良県立医科大学 薬理学講座
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Tomita Shuhei
Department Of Pharmacology The Institute Of Health Bioscience The University Of Tokushima Graduate S
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Tamaki Toshiaki
Department of Pharmacology, IHBS, the University of TOKUSHIMA Graduate school
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Yoshizumi Masanori
Department of Pharmacology, Nara Medical University
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ISHIZAWA Keisuke
Department of Pharmacology, The University of Tokushima Graduate School of Medical Sciences
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TSUCHIYA Koichiro
Department of Pharmacology, The University of Tokushima Graduate School of Medical Sciences
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Minakuchi Kazuo
Department Of Radiology Osaka Prefectural Medical Center For Respiratory And Allergic Diseases
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Ikeda Yasumasa
Department of Medicine and Bioregulatory Sciences, The University of Tokushima Graduate School of He
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Ikeda Yasumasa
Department Of Cardiology Tokushima Prefectural Central Hospital
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KAWAI Yoshichika
Departments of Food Science, Institute of Health Biosciences, The University of Tokushima Graduate S
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TERAO Junji
Departments of Food Science, Institute of Health Biosciences, The University of Tokushima Graduate S
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Kihira Yoshitaka
Department of Pharmacology, The Institute of Health Bioscience, The University of Tokushima
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Minakuchi Kazuo
Department Of Clinical Pharmacy Institute Of Health Biosciences The University Of Tokushima Graduate
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Tamaki Toshiaki
Department Of Pharmacology Kagawa Medical School
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Ishizawa Keisuke
Department Of Pharmacology The Institute Of Health Bioscience The University Of Tokushima Graduate S
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Ishizawa Keisuke
Department Of Neurology Neurological Institute Tokyo Women's Medical College
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Tsuchiya Koichiro
Department Of Clinical Pharmacology Institute Of Health Biosciences The University Of Tokushima Grad
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Kanematsu Yasuhisa
Department Of Pharmacology Institute Of Health Biosciences The University Of Tokushima Graduate Scho
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Yoshizumi Masanori
Dep. Of Pharmacology Nara Medical Univ. School Of Medicine Jpn
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Kawai Yoshichika
Department Of Food Science Institute Of Health Biosciences The University Of Tokushima Graduate Scho
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Kawai Yoshichika
Dep. Of Pharmacology The Inst. Of Health Bioscience The Univ. Of Tokushima
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Terao Junji
Department Of Food Science Graduate School Of Nutrition And Bioscience The University Of Tokushima
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Yoshizumi Masanori
Department Of Pharmacology Nara Medical University School Of Medicine
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Kihira Yoshitaka
Department Of Neural And Pain Sciences Program In Neuroscience University Of Maryland:faculty Of Pha
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Kawai Yoshichika
Department Of Food Science Graduate School Of Nutrition And Biosciences The University Of Tokushima
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Ishizawa Keisuke
Department Of Medical Pharmacology Institute Of Health Biosciences The University Of Tokushima Gradu
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