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Proton and ^\u003c23\u003eNa spin-lattice relaxation time (T_1) of the muscles of embryos and chicks were measured at 89.6 MHz and 23.7 MHz, respectively. As the tissue matured, the values of water proton T_I decreased along with water content. ^\u003c23\u003eNa-T_I shortened exponentially with maturation. Sodium content measured by ^\u003c23\u003eNa-MRS showed a similar decrease with maturation. The sodium content measured by flame photometry was always higher than that observed by ^\u003c23\u003eNa-MRS at any stage of maturation, and this magnetic resonance (MR) visibility decreased exponentially as the tissue matured. Proton T_1 of the hamster hindleg muscle with muscular dystrophy (DMP) was measured at 270 MHz using surface coil. The values lengthened until 11 weeks, and then shortened until 15 weeks. After that point, they remained unchanged. 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Magnetic Resonance Spectroscopic Studies of the Maturation and Degeneration of Skeletal Muscle
http://hdl.handle.net/10191/33452
http://hdl.handle.net/10191/33452c8e15a37-5744-4824-b8c7-f55f7f7c0965
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-09-28 | |||||
タイトル | ||||||
タイトル | Magnetic Resonance Spectroscopic Studies of the Maturation and Degeneration of Skeletal Muscle | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Magnetic Resonance Spectroscopic Studies of the Maturation and Degeneration of Skeletal Muscle | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
著者 |
Kuwabara, Takeo
× Kuwabara, Takeo× Ohno, Takao× Yuasa, Tatsuhiko× Miyatake, Tadashi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This paper describes the changes in proton (^1H) and sodium-23 (^<23>Na) magnetic resonance spectroscopy (MRS) occuring with the maturation and degeneration of skeletal muscle. Proton and ^<23>Na spin-lattice relaxation time (T_1) of the muscles of embryos and chicks were measured at 89.6 MHz and 23.7 MHz, respectively. As the tissue matured, the values of water proton T_I decreased along with water content. ^<23>Na-T_I shortened exponentially with maturation. Sodium content measured by ^<23>Na-MRS showed a similar decrease with maturation. The sodium content measured by flame photometry was always higher than that observed by ^<23>Na-MRS at any stage of maturation, and this magnetic resonance (MR) visibility decreased exponentially as the tissue matured. Proton T_1 of the hamster hindleg muscle with muscular dystrophy (DMP) was measured at 270 MHz using surface coil. The values lengthened until 11 weeks, and then shortened until 15 weeks. After that point, they remained unchanged. On the other hand, those of the controls shortened with age until 11 weeks, there reaching an "adult level" and remaining unchanged thereafter. Not only changes in water content accompanying skeletal muscle maturation, but also several factors such as functional development of cell membrane and structural macromolecule were suggested to have important effects on the relaxation times and MR visibility. | |||||
書誌情報 |
Acta medica et biologica en : Acta medica et biologica 巻 39, 号 4, p. 175-180, 発行日 1991-12 |
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出版者 | ||||||
出版者 | Niigata University School of Medicine | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05677734 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00508361 | |||||
著者版フラグ | ||||||
値 | publisher |