ATP as a periarterial sympathetic transmitter in isolated vessel.
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- CHIBA Shigetoshi
- Department of Pharmacology, Shinshu University School of Medicine
Bibliographic Information
- Other Title
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- 交感神経伝達物質としてのATPの作用機構 摘出血管実験からの考察
- コウカン シンケイ デンタツ ブッシツ ト シテ ノ ATP ノ サヨウ キコウ テキシュツ ケッカン ジッケン カラ ノ コウサツ
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Abstract
Double-peaked vasoconstrictor responses to periarterial nerve electrical stimulation (PNS) were readily induced in the condition of 30-s trains of pulses in isolated, perfused canine splenic artery, using the cannula insertion technique. P2X Prinoceptors have been shown to be involved mainly in the 1st peak response and α1-adrenoceptors mostly in the 2nd one. A small dose of TTX did not affect the 1st peak, but strongly inhibited the 2nd one, although larger doses of TTX diminished either the 1st or 2nd response. A small dose of guanethidine also inhibited only the 2nd one. The 1st one was inhibited by prolonged cold storage of the vessel. On the other hand, ωCT produced parallel inhibitory effects on the 1st and 2nd peaked responses. A low pulse number of ES only caused the release of purinergic transmitters from sympathetic nerve terminals. The possible role as a transmitter of ATP is discussed in periarterial symphathetic transmission.
Journal
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- Folia Pharmacologica Japonica
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Folia Pharmacologica Japonica 116 (2), 85-92, 2000
The Japanese Pharmacological Society
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Keywords
Details 詳細情報について
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- CRID
- 1390282679249041920
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- NII Article ID
- 10008180684
- 10012241326
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- NII Book ID
- AN00198335
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- COI
- 1:CAS:528:DC%2BD3cXltlGnu7k%3D
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- ISSN
- 13478397
- 00155691
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- NDL BIB ID
- 5418649
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- PubMed
- 10976460
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed