Study on establishing the precise measurement system for oxidative stress
Project/Area Number |
18790543
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Respiratory organ internal medicine
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Research Institution | Wakayama Medical University |
Principal Investigator |
平野 綱彦 Wakayama Medical University, 医学部, 助教 (00382333)
|
Project Period (FY) |
2006 – 2008
|
Project Status |
Completed (Fiscal Year 2008)
|
Budget Amount *help |
¥3,690,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
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Keywords | 呼吸器病学 / 慢性閉塞性肺疾患 / 窒素化ストレス / ニトロタイロシン / HPC / ECD法 / 喀痰 / テオフィリン / 酸化ストレス / 精密定量法 / 3-ニトロタイロシン / HPLC / 定量法 / 唾液 / 気道閉塞 |
Research Abstract |
まず高速液体クロマトグラフィー(HPLC)に電気化学検出(ECD)を組み合わせた方法を用いた喀痰中の蛋白結合3-ニトロタイロシンの測定は窒素化ストレスの定量法として有益であり、気道・肺における窒素化ストレスの産生亢進がCOPDの発症や進展に関与していることを示した.次に実際に人において窒素化ストレスの制御がCOPDの気道炎症を改善すると仮定し、クロスオーバースタイルにてCOPD患者にテオフィリンを投与し、検討を行った.活性窒素種の測定に関して、上述のHPLC/ECD法による定量的な検討もあわせて行ったところ、テオフィリン投与群では、気道中の活性窒素種産生量が減少し、好中球性の気道炎症が抑制されることを見出し、同薬剤がCOPDの新たな抗炎症薬となる可能性が示唆された.今後は本システムを用いてCOPDの気道・肺炎症に関連する原因物質を特定し、その病的意義及び特異的に制御し得る薬剤の検証をすすめて、COPDの病態解明・治療効率の向上へ寄与できると考えられる.
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Report
(4 results)
Research Products
(28 results)
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[Journal Article] Comparison of bronchodilatory properties of transdermal and inhaled long-acting beta(2)-agonists2008
Author(s)
Yamagata T, Hirano T, Sugiura H, Yanagisawa S, Ichikawa T, Ueshima K, Akamatsu K, Nakanishi M, Matsunaga K, Minakata Y, Ichinose M
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Journal Title
Pulm Pharmacol Ther 21(1)
Pages: 160-5
Related Report
Peer Reviewed
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[Journal Article] Peak Expiratory Flow Variability Adjusted by Forced Expiratory Volume in One Second is a Good Index for Airway Responsiveness in Asthmatics2008
Author(s)
K. Matsuaga, M. Kanda, A. Hayata, S. Yanagisawa, T. Ichikawa, K. Akamatsu, A. Koarai, T. Hirano, H. Sugiura, Y. Minakata, M. Ichinose
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Journal Title
Intern Med 47
Pages: 1107-1112
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[Journal Article] Peroxynitrite augments fibroblast-mediated tissue remodeling via myofibroblast differentiation2008
Author(s)
T. Ichikawa, H. Sugiura, A. Koarai, S. Yanagisawa, M. Kanda, A. Hayata, K. Furukawa, K. Akamatsu, T. Hirano, M. Nakanishi, K. Matsunaga, Y. Minakata, M. Ichinose
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Journal Title
Am J Physiol Lung Cell Mol Physiol 295
Pages: 800-808
Related Report
Peer Reviewed
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[Journal Article] Overexpression of CD-11b and CXCR1 on Circulating Neutrophils : Its Possible Role in COPD2007
Author(s)
T. Yamagata, H. Sugiura, T. Yokoyama, S. Yanagisawa, T. Ichikawa, K. Ueshima, K. Akamatsu, T. Hirano, M. Nakanishi, Y. Yamagata, K. Matsunaga, Y. Minakata, M. Ichinose
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Related Report
Peer Reviewed
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[Journal Article] Improvement of pulmonary function and dyspnea by tiotropium in COPD patients using a transdermal β2-agonist2007
Author(s)
K. Akamatsu, T. Yamagata, T. Takahashi, K. Miura, S. Maeda, Y. Yamagata, T. Ichikawa, S. Yanagisawa, K. Ueshima, T. Hirano, M. Nakanishi, K. Matsunaga, Y. Minakata, M. Ichinose
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Journal Title
Pulm Pharm Ther 20
Pages: 701-707
Related Report
Peer Reviewed
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[Journal Article] The Influence of Free 3-Nitrotyrosine and Saliva on the Quantitative Analysis of Protein-Bound 3-Nitrotyrosine in Sputum2007
Author(s)
K. Ueshima, Y. Minakata, H. Sugiura, S. Yanagisawa, T. Ichikawa, K. Akamatsu, T. Hirano, M. Nakanishi, K. Matsunaga, T. Yamagata, M. Ichinose
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Journal Title
Analytical Chemistry Insights 1
Pages: 1-7
Related Report
Peer Reviewed
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[Journal Article] Possible impact of salivary contamination on cytokine analysis in exhaled breath condensate2007
Author(s)
T. Ichikawa, K. Matsunaga, Y. Minakata, S. Yanagisawa, K. Ueshima, K. Akamatsu, T. Hirano, M. Nakanishi, H. Sugiura, T. Yamagata, M. Ichinose
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Journal Title
Analytical Chemistry Insights 2
Pages: 5-92
Related Report
Peer Reviewed
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[Journal Article] Inhibition of reactive nitrogen species production in COPD airways: comparison of inhaled corticosteroid and oral theophylline2006
Author(s)
T. Hirano, T. Yamagata, M. Gohda, Y. Yamagata, T. Ichikawa, S. Yanagisawa, K. Ueshima, K. Akamatsu, M. Nakanishi, K. Matsunaga, Y. Minakata, M.Ichikawa
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Related Report
Peer Reviewed
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