WEKO3
アイテム
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Physiological and Pathological Mitochondrial Clearance Is Related to Pectoralis Major Muscle Pathogenesis in Broilers With Wooden Breast Syndrome
http://hdl.handle.net/10659/00007022
http://hdl.handle.net/10659/000070224ecb8bb1-8f3f-49eb-a2b2-4ce0fb2b5beb
名前 / ファイル | ライセンス | アクション |
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R-2021-130_watanabe.pdf (4.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-02-21 | |||||
タイトル | ||||||
タイトル | Physiological and Pathological Mitochondrial Clearance Is Related to Pectoralis Major Muscle Pathogenesis in Broilers With Wooden Breast Syndrome | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | wooden breast syndrome | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | pathology | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | hypoxia | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | mitochondria | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | autophagy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | mitophagy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wooden breast syndrome | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | pathology | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hypoxia | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | mitochondria | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | autophagy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | mitophagy | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Hosotani, Marina
× Hosotani, Marina× Kawasaki, Takeshi× 長谷川, 靖洋× Wakasa, Yui× Hoshino, Maki× Takahashi, Naoki× 植田, 弘美× Takaya, Tomohide× 岩﨑, 智仁× 渡邉, 敬文 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Wooden breast syndrome (WB) constitutes an emerging myopathy in the pectoralis major muscle (PM) of broiler chickens, characterized by myofiber hypertrophy and degeneration along with severe fibrosis. WB pathogenesis has been considered to involve hypoxia induced by rapid growth of the PM. In this study, we focused on mitochondrial morphology and dynamics in the myofibers, as these organelles are sensitive to damage by hypoxia, and examined the effects on WB pathogenesis. Specifically, the PMs of a flock of 35 broilers at 50 days of age were evaluated. First, the severity of disease in each bird was determined by measuring histopathological indices including the fibrotic area (FA) in the muscle and circularity of myofibers (CM). These values were 29.4 ± 9.6% and 0.70 ± 0.042, respectively, showing variety among the flock. Myofiber vacuolization was observed in all birds including numerous small- or large-rimmed vacuoles, with the former consisting of ultrastructurally autophagosome-like vacuoles engulfing degenerated mitochondria. The large-rimmed vacuoles frequently occurred in the PMs with more severe FA and CM, indicating a relationship between altered autophagy/mitophagy and WB severity. Next, the expression levels of hypoxia-adaptive and mitochondrial dynamics-related genes were analyzed, and their correlations with the histopathological indices were examined. The histopathological indices were negatively correlated with the expression of vascular endothelial growth factor A (VEGFA), indicating that less angiogenesis owing to weakened hypoxia-inducible factor signaling induces more severe WB pathology. In addition, the observed negative correlation with mitochondrial dynamics-related genes implied that WB pathology deteriorates concomitant with reduced mitochondrial dynamics. Furthermore, the expression of mitochondrial dynamics-related genes showed strong positive correlation with that of VEGFA and autophagy-/mitophagy-related genes. These results revealed that the PMs of broilers possess the mechanism of physiological clearance of mitochondria damaged by the hypoxia resulting from the continuous mitochondrial dynamics and autophagy/mitophagy accompanying rapid PM growth. In turn, the altered mitochondrial clearance induced by chronic hypoxia and the accumulation of damaged mitochondria likely underly the severe pathological features of WB. | |||||
書誌情報 |
Frontiers in Physiology 巻 11, p. 579-1-579-12, 発行日 2020-06 |
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DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3389/fphys.2020.00579 | |||||
権利(URI) | ||||||
権利情報 | http://creativecommons.org/licenses/by/4.0/ | http://creativecommons.org/licenses/by/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | Frontiers Media S.A. | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |