ID | 49565 |
フルテキストURL | |
著者 |
Takiue, Keiichi
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Med & Clin Sci
Sugiyama, Hitoshi
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Ctr CKD & Peritoneal Dialysis
ORCID
Kaken ID
publons
researchmap
Inoue, Tatsuyuki
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Med & Clin Sci
Morinaga, Hiroshi
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Ctr CKD & Peritoneal Dialysis
Kikumoto, Yoko
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Med & Clin Sci
Kitagawa, Masashi
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Med & Clin Sci
Kitamura, Shinji
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Med & Clin Sci
Kaken ID
publons
Maeshima, Yohei
Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Med & Clin Sci
Kaken ID
publons
researchmap
Wang, Dahong
Masuoka, Noriyoshi
Okayama Univ Sci, Dept Life Sci
|
抄録 | Background: Catalase is an important antioxidant enzyme that regulates the level of intracellular hydrogen peroxide and hydroxyl radicals. The effects of catalase deficiency on albuminuria and progressive glomerulosclerosis have not yet been fully elucidated. The adriamycin (ADR) nephropathy model is considered to be an experimental model of focal segmental glomerulosclerosis. A functional catalase deficiency was hypothesized to exacerbate albuminuria and the progression of glomerulosclerosis in this model.
Methods: ADR was intravenously administered to both homozygous acatalasemic mutant mice (C3H/AnLCs(b)Cs(b)) and control wild-type mice (C3H/AnLCs(a)Cs(a)). The functional and morphological alterations of the kidneys, including albuminuria, renal function, podocytic, glomerular and tubulointerstitial injuries, and the activities of catalase were then compared between the two groups up to 8 weeks after disease induction. Moreover, the presence of a mutation of the toll-like receptor 4 (tlr4) gene, which was previously reported in the C3H/HeJ strain, was investigated in both groups.
Results: The ADR-treated mice developed significant albuminuria and glomerulosclerosis, and the degree of these conditions in the ADR-treated acatalasemic mice was higher than that in the wild-type mice. ADR induced progressive renal fibrosis, renal atrophy and lipid peroxide accumulation only in the acatalasemic mice. In addition, the level of catalase activity was significantly lower in the kidneys of the acatalasemic mice than in the wild-type mice during the experimental period. The catalase activity increased after ADR injection in wild-type mice, but the acatalasemic mice did not have the ability to increase their catalase activity under oxidative stress. The C3H/AnL strain was found to be negative for the tlr4 gene mutation.
Conclusions: These data indicate that catalase deficiency plays an important role in the progression of renal injury in the ADR nephropathy model.
|
発行日 | 2012-05-25
|
出版物タイトル |
BMC Nephrology
|
巻 | 13巻
|
号 | 14号
|
出版者 | Biomed Central Ltd
|
ISSN | 1471-2369
|
資料タイプ |
学術雑誌論文
|
オフィシャル URL | http://dx.doi.org/10.1186/1471-2369-13-14
|
関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/49121
|
言語 |
英語
|
論文のバージョン | publisher
|
査読 |
有り
|
DOI | |
Web of Science KeyUT |