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Functional interconnection between cholinergic and peptidergic neurons in bullfrog sympathetic ganglia

Research Project

Project/Area Number 62480109
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Neurophysiology and muscle physiology
Research InstitutionKurume University

Principal Investigator

AKASU Takashi  Kurume University School of Medicine Professor, 医学部, 教授 (60113213)

Co-Investigator(Kenkyū-buntansha) TOKIMASA Takayuki  Kurume University School of Medicine Associate Professor, 医学部, 助教授 (50155511)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1988: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1987: ¥5,000,000 (Direct Cost: ¥5,000,000)
KeywordsModulation of synaptic transmission / Cholinergic neuron / Peptidergic neuron / Synaptic interaction / Sympathetic ganglia / Bullfrog / 受容体感受性促進 / シナプス伝達調節 / ウシ蛙交換神経節 / アセチルコリン / コリン性神経 / ペプタイド性神経 / コリン性伝達抑制 / 異シナプス性伝達調節 / コリン性伝達 / ペプタイド性伝達 / 受容体感受性 / ガンマアミノ酪酸 / セロトニン
Research Abstract

Pharmacological study has reported previously modulation of cholinergic transmission induced by interaction between nicotinic and peptidergic transmitter substances. However, there was considerable disagreement among the experimental findings. The purpose of the present study was to examine the existence of synaptic interaction between peptidergic and nicotinic postsynaptic responses in bullfrog sympathetic ganglia, using intracellular and voltage-clamp recording methods. Stimulations of both 3rd-5th (0.2 Hz) and 8th (30 Hz) spinal nerves evoked the fast excitatory postsynaptic potential (EPSP) superimposed with the late slow EPSP at the same sympathetic neuron. The amplitude of the fast EPSPs was decreased during the course of the late slow EPSP in a majority of neurons. The quantal content of the fast EPSP was also decreased. Acetylcholine-induced depolarization ACh potential and current (ACh current) produced by ionophoretic application of ACh were not changed or increased during th … More e late slow EPSP. Bath-application of luteinizing hormone-releasing hormone (LH-RH; 40 nM-4 M) depressed the fast EPSP in a concentration-dependent manner. At a concentration 1 M, LH-RH produced a 63 8 % depression of the quantal content of the fast EPSP. LH-RH depressed the frequency of the miniature EPSP. Antagonists for LH-RH receptor ([D-Phe^<2,6>, Pro^3]-LH-RH and [d-pGlu^1, D-Phe^2, D-Tri^<3,6> -LH-RH) prevented the presynaptic inhibition of the fast EPSP induced by LH-RH. These results suggest that the fast EPSP is depressed during the late slow EPSP by decreasing the evoked release of ACh from presynaptic nerve terminals in bullfrog sympathetic ganglia. In some sympathetic B neurons. LH-RH increased the ACh current and shifted the dose response curve in parallel to the left. Voltage-clamp analyses using a single sympathetic neurons showed that LH-RH did not change the properties of ion channels associated with the nicotinic receptor. LH-TH may facilitate the sensitivity of the nicotinic ACh receptors by increasing an affinity of ACh to the receptor. Less

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (45 results)

All Other

All Publications (45 results)

  • [Publications] Akasu,T.: Brain Research. 405. 375-379 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] North,R.A.: Journal of Physiology. 386. 333-353 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Tsurusaki,M.: Neuroscience Letters. 77. 303-307 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu,T.: British Journal of Pharmacology. 91. 453-455 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Galligan,J.J.: Neuroscience Letters. 82. 167-171 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Ariyoshi,M.: Brain Research. 435. 241-248 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu,T.: Pflugers Archiv European Journal of Physiology. 411. 80-87 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Nishimura.T.: Brain Research. 442. 399-402 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hasuo,H.: Kurume Medical Journal. 35. 43-48 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu,T.: Neuroscience Letters. 92. 270-274 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu,T.: Comparative biochemistry and Physiology(Pt.C). 91. 241-246 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hasuo,H.: Pflugers Archiv European Journal of Physiology. 413. 206-208 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Koketsu,K.: "Presynaptic Regulation of Neurotransmitter Release" Freund Publishing House Ltd., inpress (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu,T.: "Central Cholinergic Synaptic Transmission" Birkhauser Verlag AG, inpress (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu, T.: "Evidence for epinephrine-induced depolarization in neurons of bullfrog sympathetic ganglia" Brain Research. 405. 375-379 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Ariyoshi, M.: "Voltage-clamp studies of the inhibition of -aminobutyric acid response by glucocorticoids in bullfrog primary afferent neurons" Brain Research. 435. 241-248 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Nishimura, T.: "5-Hydroxytryptamine inhibits cholinergic transmission through 5-HT_<1A> receptor subtypes in rabbit vesical parasympathetic ganglia" Brain Research. 442. 399-402 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hasuo, H.: "Facilitation of nicotinic acetylcholine responses during the late slow EPSP in a subpopulation of bullfrog sympathetic neurons" Kurume Medical Journal. 35. 43-48 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu, T.: "5-Hydroxytryptamine facilitates GABA-induced depolarization in bullfrog primary afferent neurons" Neuroscience Letters. 92. 270-274 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu, T.: "Postsynaptic modulation of cholinergic transmission by endogenous substances" Comparative Biochemistry and Physiology (Pt.C). 91. 241-246 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hasuo, H.: "Presynaptic inhibition of cholinergic transmission by peptidergic neurons in bullfrog sympathetic ganglia" Pflugers Archiv European Journal of Physiology. 413. 206-208 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hasuo, H.: "Peptidergic inhibition of cholinergic transmission in bullfrog sympathetic ganglia" Japanese Journal of Physiology. 38. 643-658 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu, T.: "Adrenaline inhibits muscarinic transmission in bullfrog sympathetic ganglia" Pflugers Archiv European Journal of Physiology. in press. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Koketsu, K.: Presynaptic Regulation of Neurotransmitter Release. Freund Publishing House Ltd., (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu, T.: Central Cholinergic Synaptic Transmission. Birkhauser Verlag AG, (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Akasu,T.: Pflugers Archiv European Journal of Physiology. 411. 80-87 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Nishimura,T.: Brain Research. 442. 399-402 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Hasuo,H.: Kurume Medical Journal. 35. 43-48 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Akasu,T.: Neuroscience Letters. 92. 270-274 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Akasu,T.: Comparative Biochemistry and Physiology(Pt.C). 91. 241-246 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Williams,J.T.: Journal of Neuroscience. 8. 4299-4306 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Hasuo,H.: Pflugers Archiv European Journal of Physiology. 413. 206-208 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Hasuo,H.: Japanese Journal of Physiology. 38. 643-658 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Akasu,T.: Neuroscience Research. 6. 186-190 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Galligan,J.J.: British Journal of Pharmacology. 96. 193-203 (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Tokimasa,T.: Neuroscience. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Koketsu,K.: "Presynaptic Regulation of Neurotransmitter Release" Freund Publishing House Ltd., (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Akasu,T.: "Central Cholinergic Synaptic Transmission" Birkhauser Verlag AG, (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Akasu.T: Neuroscience Research. 5(Suppl.). 142 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Ariyoshi.M: Brain Research. 435. 241-248 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Akasu.T: Pflugers Archiv European Journal of Physiology. 411. 80-87 (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Nishimura.T: Brain Research. 442. 399-402 (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Hasuo.H: Kurume Medical Journal. in press. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Akasu.T: Comparative Biochemistry and Physiology(A). in press. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Koketsu.K: "Presynaptic Regulation of Neurotransmitter Release" Freund Publishing House Ltd., (1988)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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