Results 151 to 160 of about 14,957 (210)
Controlling malaria mosquito reproduction via the octopamine beta2 receptor
Ellis DA +16 more
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The biosynthesis of octopamine
Naunyn-Schmiedeberg's Archives of Pharmacology, 1972The biosynthesis of octopamine was determined by the administration of amino acid and amine precursors and enzyme inhibitors and measuring the endogenous levels of octopamine. It appeared to proceed as follows: phenylalanine-tyrosine-tyramine-octopamine.
J Axelrod
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Nature, 1977
Octopamine is highly concentrated in neurones of several invertebrate species. Unlike in mammals, octopaminergic neurones in invertebrates are spatially separated from catecholaminergic neurons. In identified nerve cells of Aplysia, however, this amine coexists with other putative neurotransmitters. Octopamine is synthesized in nerves from tyrosine and
J, Axelrod, J M, Saavedra
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Octopamine is highly concentrated in neurones of several invertebrate species. Unlike in mammals, octopaminergic neurones in invertebrates are spatially separated from catecholaminergic neurons. In identified nerve cells of Aplysia, however, this amine coexists with other putative neurotransmitters. Octopamine is synthesized in nerves from tyrosine and
J, Axelrod, J M, Saavedra
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Progress in Neurobiology, 1999
Octopamine (OA), a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. It is present in relatively high concentrations in neuronal as well as in non-neuronal tissues of most invertebrate species studied. It functions as a model for the study of modulation in general.
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Octopamine (OA), a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. It is present in relatively high concentrations in neuronal as well as in non-neuronal tissues of most invertebrate species studied. It functions as a model for the study of modulation in general.
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Octopamine in the Lobster Nervous System
Nature New Biology, 1972A search for catecholamines which might serve as transmitters in the lobster nervous system demonstrated only small amounts of dopamine (about 0.2 µg/g tissue) and failed to detect noradrenaline or adrenaline (limit of sensitivity, 0.1 µg g−1) (unpublished results of D. L.
D L, Barker, P B, Molinoff, E A, Kravitz
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Octopamine and locomotor activity of rats
Psychopharmacology, 1983Intracerebroventricular administration of P-octopamine (OA) had opposite effects on locomotor activity depending on whether or not the rats were subjected to uncontrollable electric shocks. In unshocked rats, OA produced a large decrease in locomotor activity, but when the rats were subjected to unsignalled and uncontrollable electric shocks, a ...
J, Delacour, C, Guenaire
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Presence of Octopamine and an Octopamine Receptor in Crassostrea virginica.
In vivoOctopamine is a biogenic amine first identified in octopus. It has been well studied in arthropods and a few gastropods, serving as a neurotransmitter and hormone. The presence of octopamine has rarely been reported in bivalves and has not been reported in Crassostrea virginica.
Kerri, Pryce +8 more
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Responsiveness of neurogenic hearts to octopamine
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1975Abstract 1. The neurogenic hearts of the horseshoe crab Limulus polyphemus, the spider Eurypelma marxi, and the lobster Homarus americanus were examined for their responsiveness to octopamine. 2. Octopamine always produced a moderate increase in the rate and strength of the heartbeat when applied to isolated heart preparations of the horseshoe crab ...
D S, Grega, R G, Sherman
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Excretion of octopamine metabolites in neuroblastoma
Clinica Chimica Acta, 1986The urinary concentrations of o-hydroxymandelic acid, m-hydroxymandelic acid, p-hydroxymandelic acid, homovanillic acid and vanillylmandelic acid were determined in 57 healthy children and 9 patients with neuroblastoma. The concentrations of o-hydroxymandelic acid and p-hydroxymandelic were not significantly different for both groups whereas the ...
M W, Couch, D M, Greer, C M, Williams
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