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  1. 農学部
  1. 農学部
  2. 学術雑誌掲載論文 (農学部)

Inhibition of Flagellar Motility of Fowl Spermatozoa by L-Carnitine: Its Relationship with Respiration and Phosphorylation of Axonemal Proteins

http://hdl.handle.net/10458/733
http://hdl.handle.net/10458/733
214e0206-bbdd-4652-8a01-9ba9bf4f3466
名前 / ファイル ライセンス アクション
ashizawa50.pdf ashizawa50.pdf (1.6 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-10-11
タイトル
タイトル Inhibition of Flagellar Motility of Fowl Spermatozoa by L-Carnitine: Its Relationship with Respiration and Phosphorylation of Axonemal Proteins
言語 en
タイトル
タイトル Carnitine and sperm motility
言語 en
言語
言語 eng
キーワード
言語 ja
主題Scheme Other
キーワード 精子
キーワード
言語 en
主題Scheme Other
キーワード sperm, Demembranated sperm, Dynein, Calcium, Oxygen consumption
資源タイプ
資源タイプ journal article
著者 芦沢, 幸二

× 芦沢, 幸二

WEKO 932

ja 芦沢, 幸二

en Ashizawa, Koji

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Kamiya, Tetsushi

× Kamiya, Tetsushi

WEKO 5373

en Kamiya, Tetsushi

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Tamura, Ikue

× Tamura, Ikue

WEKO 5374

en Tamura, Ikue

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Tsuzuki, Yasuhiro

× Tsuzuki, Yasuhiro

WEKO 2104
e-Rad 00236928

en Tsuzuki, Yasuhiro

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抄録
内容記述タイプ Abstract
内容記述 The action of carnitine in regulating fowl sperm motility was investigated. As the concentration of L-carnitine was increased (0-20 mM), the motility of intact and demembranated fowl spermatozoa was reduced at 30°C. Even the presence of 1 mM CaCl2 before the addition of 10 mM carnitine could not prevent the inhibition of motility at 30°C and 40°C. However, motility was restored by reducing the concentrations of carnitine. Carnitine also inhibited the oxygen consumption and ATP concentrations of intact spermatozoa, and caused a reduction in intracellular free Ca2+ concentrations. Phosphorylation of a 50 kDa protein and dephosphorylation of 24 kDa and 30 kDa proteins of demembranated spermatozoa were observed after the addition of carnitine. In contrast, the flagellar ATPase activity of crude dynein extract was not affected by the addition of carnitine. These results suggest that inhibitory effect of carnitine for motility may be directly on the axonemal phosphoproteins, but not directly on the dynein ATPase activity. The physiological role of carnitine for fowl spermatozoa in the ductus deferens is discussed.
言語 en
書誌情報 en : Molecular reproduction and development

巻 38, 号 3, p. 318-325, 発行日 1994
ISSN
収録物識別子タイプ ISSN
収録物識別子 1040452X
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10735246
著者版フラグ
出版タイプ AM
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芦沢, 幸二, Kamiya, Tetsushi, Tamura, Ikue, Tsuzuki, Yasuhiro, 1994, Carnitine and sperm motility: 318–325 p.

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