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  • 1
    ISSN: 0300-9629
    Keywords: Electrical excitability ; Periplaneta americana ; Procion dye ; Schistocerca gregaria ; cell geometry ; cell morphology ; cockroach ; insect central nervous system ; intracellular dye injection ; locust ; marking cells ; nerve cell bodies ; neuroanatomy
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of comparative physiology 172 (1993), S. 359-368 
    ISSN: 1432-1351
    Keywords: Acetylcholine receptors ; Muscarinic ; Nicotinic ; Cockroach ; Periplaneta americana
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The effects of a number of cholinergic agonists and antagonists have been examined on the cell body of the fast coxal depressor (Df) of the cockroach Periplaneta americana using voltage-clamp techniques. Acetylcholine (ACh), when applied to this neurone voltage-clamped at its normal resting potential, results in the generation of an inward current through the activation of receptors which are blocked by α-bungarotoxin (α-bgt). At more depolarized membrane potentials acetylcholine induces an inward current which is strongly voltage-dependent and which is insensitive to α-bgt. An α-bgt-resistant current is also induced by the application of a number of cholinergic agonists. In order of potency these are: decamethonium〉oxotremorine = McN-A-343 = (+)-muscarine = arecaidine propargyl ester 〉nicotine 〉ACh. This α-bgt-resistant response to cholinergic agonists is blocked by a range of antagonists. In order of potency these are : decamethonium 〉pirenzipine 〉quinuclidinyl benzilate = atropine = p-f-hexahydro-sila-difenidol = dexetimide 〉scopolamine = methoctramine. The receptors mediating this response have been termed ‘mixed cholinergic’ due to their sensitivity to both nicotinic and muscarinic ligands. Pharmacological similarities between these ‘mixed’ receptors and binding components found in high speed supernatant fractions of insect nervous tissue are discussed.
    Type of Medium: Electronic Resource
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2002-11-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pitman, Nigel C A -- Jorgensen, Peter M -- New York, N.Y. -- Science. 2002 Nov 1;298(5595):989.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Tropical Conservation, Box 90381, Duke University, Durham, NC 27708-0381, USA. ncp@duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12411696" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; *Conservation of Natural Resources/economics ; Costs and Cost Analysis ; *Ecosystem ; *Plants ; *Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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