Effect of a combination of astaxanthin supplementation, heat stress, and intermittent reloading on satellite cells during disuse muscle atrophy  

虾青素摄入、热应激和间歇式再负荷的联合处理对废用性肌萎缩的肌卫星细胞的影响（英文）

作　　者：Toshinori YOSHIHARA Takao SUGIURA Nobuyuki MIYAJI Yuki YAMAMOTO Tsubasa SHIBAGUCHI Ryo KAKIGI Hisashi NAITO Katsumasa GOTO Daijiro OHMORI Toshitada YOSHIOKA 

机构地区：[1]Graduate School of Health and Sports Science,Juntendo University,Inzai,Chiba 270-1695,Japan [2]Faculty of Education,Yamaguchi University,Yamaguchi,Yamaguchi 753-8513,Japan [3]Toyo Koso Kagaku Co.Ltd.,Urayasu,Chiba 279-0041,Japan [4]Institute of Health and Sports Science,Kurume University,Kurume,Fukuoka 839-8502,Japan [5]Institute of Liberal Arts and Science,Kanazawa University,Kanazawa,Ishikawa 920-1192,Japan [6]Faculty of Medicine,Juntendo University,Bunkyo-ku,Tokyo 113-0033,Japan [7]Graduate School of Health Sciences,Toyohashi SOZO University,Toyohashi,Aichi 440-8511,Japan [8]Department of Chemistry,School of Medicine,Juntendo University,Inzai,Chiba 270-1695,Japan [9]Hirosaki Gakuin University,Hirosaki,Aomori 036-8577,Japan

出　　处：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》2018年第11期844-852,共9页浙江大学学报（英文版）B辑（生物医学与生物技术）

基　　金：Project supported by the Japan Society for the Promotion of Science(JSPS)KA-KENHI(Nos.20500578 and 17K01765);the Ministry of Education,Culture,Sports,Science and Technology(MEXT)-Supported Program for the Strategic Research Foundation at Private Universities

摘　　要：We examined the effect of a combination of astaxanthin （AX） supplementation, repeated heat stress, and intermittent reloading （IR） on satellite cells in unloaded rat soleus muscles. Forty-nine male Wistar rats （8-week-old） were divided into control, hind-limb unweighting （HU）, IR during HU, IR with AX supplementation, IR with repeated heat stress （41.0-41.5 ℃ for 30 min）, and IR with AX supplementation and repeated heat stress groups. After the experimental period, the antigravitational soleus muscle was analyzed using an immunohistochemical technique. Our results revealed that the combination of dietary AX supplementation and heat stress resulted in protection against disuse muscle atrophy in the soteus muscle. This protective effect may be partially due to a higher satellite cell number in the atrophied soleus muscle in the IR/AX/heat stress group compared with the numbers found in the other groups. We concluded that the combination treatment with dietary AX supplementation and repeated heat stress attenuates soleus muscle atrophy, in part by increasing the number of satellite cells.目的:探讨透过虾青素摄入、热应激和间歇式再负荷的不同处理方式及其联合处理,对于尾部悬吊后大鼠比目鱼肌卫星细胞的影响。创新点:利用虾青素摄入、热应激与间歇式再负荷的不同方式,探讨预防大鼠比目鱼肌废用性肌萎缩的有效处理。方法:将49只雄性Wistar大鼠分成对照组、吊尾组、间歇式再负荷组、虾青素摄入组、热应激组和虾青素摄入+热应激组。摘取7天尾部悬吊后的大鼠的比目鱼肌,使用免疫组织化学技术,分析肌卫星细胞的激活程度。结论:虾青素摄入、热应激与间歇式再负荷的不同方式的联合处理能减少比目鱼肌废用性肌萎缩,其部分效果可能是由于肌卫星细胞数量的增加所致。

关 键 词：Antioxidant astaxanthin Disuse muscle atrophy Heat stress Satellite cell 

分 类 号：Q494[生物学—生理学]