Effects of Prolonged Cold Storage on Purinergic and Adrenergic Components of Sympathetic Co-transmission in Isolated Canine Splenic Arteries

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The present study demonstrated the progressive inhibition by prolonged cold storage (4, 7 and 14 days at 4°C) on prejunctional and postjunctional functions of purinergic and adrenergic components of double-peaked vasoconstrictor responses to periarterial electrical nerve stimulation in the isolated canine splenic artery. After the cold storage for 4 days, the first phase constriction was markedly decreased, whereas the second response was not significantly modified. Furthermore, after the 7 days of cold storage, the first phase was substantially depressed at low frequencies, but at high frequencies, a low level of contractile responses was still observed. On the other hand, the second phase in the cold stored artery for 7 days largely remained at any used frequencies. Moreover, the 14 days of cold storage almost completely inhibited the vasoconstrictor responses to nerve stimulation. Tyramine-induced constrictions were progressively decreased in the stored-days dependent manner, although the ATP and the noradrenaline-induced one was not modified for 4 and 7 days of the cold storage. In conclusion, 1) the 4°C cold stored artery for 4 days may show preferential injury of its tyramine-dependent noradrenaline releasing mechanisms, whereas nerve excited ones might well remain; and 2) the prejunctional contractile response of purinergic transmission might be damaged more preferentially than that of adrenergic transmission within 7 days storage.

収録刊行物

  • The Japanese journal of pharmacology

    The Japanese journal of pharmacology 81(2), 163-169, 1999-10

    The Japanese Pharmacological Society

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各種コード

  • NII論文ID(NAID)
    10008196755
  • NII書誌ID(NCID)
    AA00691188
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00215198
  • NDL 記事登録ID
    4886635
  • NDL 雑誌分類
    ZS51(科学技術--薬学)
  • NDL 請求記号
    Z53-D199
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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