WEKO3
アイテム
Oxidative stress-induced glomerular mineralocorticoid receptor activation limits the benefit of salt reduction in Dahl salt-sensitive rats
https://kagawa-u.repo.nii.ac.jp/records/196
https://kagawa-u.repo.nii.ac.jp/records/196b4fb02c4-201e-4736-9ef6-23ef37bdcb55
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (1.6 MB)
|
.png)
|
|
|
内容の要旨 (286.4 kB)
|
|
|
|
審査の結果の要旨 (346.6 kB)
|
|
| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2014-03-24 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Oxidative stress-induced glomerular mineralocorticoid receptor activation limits the benefit of salt reduction in Dahl salt-sensitive rats | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||||||
| 資源タイプ | doctoral thesis | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | open access | |||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||
| 著者 |
北田, 研人
× 北田, 研人
|
|||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Background Mineralocorticoid receptor (MR) antagonists attenuate renal injury in salt-sensitive hypertensive rats with low plasma aldosterone levels. We hypothesized that oxidative stress causes MR activation in high-salt-fed Dahl salt-sensitive rats. Furthermore, we determined if MR activation persisted and induced renal injury, even after switching from a high- to a normal-salt diet. |
|||||||||||||
| 言語 | en | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Methods and Findings High-salt feeding for 4 weeks increased dihydroethidium fluorescence (DHE, an oxidant production marker), p22phox (a NADPH oxidase subunit) and serum and glucocorticoid-regulated kinase-1 (SGK1, an MR transcript) in glomeruli, compared with normal-salt feeding, and these changes persisted 4 weeks after salt withdrawal. Tempol treatment (0.5 mmol/L) during high-salt feeding abolished the changes in DHE fluorescence, p22phox and SGK1. Dietary salt reduction after a 4-week high-salt diet decreased both blood pressure and proteinuria, but was associated with significantly higher proteinuria than in normal control rats at 4 weeks after salt reduction. Administration of tempol during high-salt feeding, or eplerenone, an MR antagonist (100 mg/kg/day), started after salt reduction, recovered proteinuria to normal levels at 4 weeks after salt reduction. Paraquat, a reactive oxygen species generator, enhanced MR transcriptional activity in cultured rat mesangial cells and mouse podocytes. |
|||||||||||||
| 言語 | en | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Conclusions These results suggest that oxidative stress plays an important role in glomerular MR activation in Dahl salt-sensitive rats. Persistent MR activation even after reducing salt intake could limit the beneficial effects of salt restriction. |
|||||||||||||
| 言語 | en | |||||||||||||
| 学位名 | ||||||||||||||
| 言語 | ja | |||||||||||||
| 学位名 | 博士（医学） | |||||||||||||
| 学位授与機関 | ||||||||||||||
| 識別子Scheme | kakenhi | |||||||||||||
| 識別子 | 16201 | |||||||||||||
| 言語 | ja | |||||||||||||
| 機関名 | 香川大学 | |||||||||||||
| 言語 | en | |||||||||||||
| 機関名 | Kagawa University | |||||||||||||
| 学位授与年月日 | ||||||||||||||
| 学位授与年月日 | 2014-03-24 | |||||||||||||
| 学位授与番号 | ||||||||||||||
| 学位授与番号 | 甲第581号 | |||||||||||||
| 権利 | ||||||||||||||
| 言語 | en | |||||||||||||
| 権利情報 | © 2012 Kitada et al. | |||||||||||||
| 権利 | ||||||||||||||
| 言語 | en | |||||||||||||
| 権利情報Resource | https://creativecommons.org/licenses/by/4.0/ | |||||||||||||
| 権利情報 | This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. | |||||||||||||
| 論文ID（NAID） | ||||||||||||||
| 識別子タイプ | NAID | |||||||||||||
| 関連識別子 | 500000993571 | |||||||||||||
| PubMed番号 | ||||||||||||||
| 識別子タイプ | PMID | |||||||||||||
| 関連識別子 | 22911865 | |||||||||||||
| 関連サイト | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1371/journal.pone.0041896 | |||||||||||||
| 関連サイト | ||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||
| 識別子タイプ | URI | |||||||||||||
| 関連識別子 | https://dl.ndl.go.jp/pid/10224378 | |||||||||||||
| 関連サイト | ||||||||||||||
| 関連タイプ | hasVersion | |||||||||||||
| 識別子タイプ | URI | |||||||||||||
| 関連識別子 | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3404044/ | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | P | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_fa2ee174bc00049f | |||||||||||||
| KEID | ||||||||||||||
| 27464 | ||||||||||||||
