octopamine


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octopamine

[äk′tō·pə‚mēn]
(pharmacology)
C8H11NO2 A crystalline compound, used as an adrenergic drug.
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These mixtures can also action openly as neurotoxic compounds, disturbing octopamine receptors or acetylcholine esterase activity (Isman, 2000).
The Role of Octopamine in Syllable-Period Selective Phonotaxis in Female Crickets (Acheta domesticus).
Mechanisms responsible for the clock-driven increase in the concentration of Rh-LpOps1-4 at night are not known, but they are driven by a 3',5'-cyclic adenosine monophosphate (cAMP) cascade that is activated by octopamine, a biogenic amine neurotransmitter released from the clock-driven neural projection to the eyes (reviewed in Battelle et al.
For example, the emerald cockroach wasp injects its cockroach host with a venomous cocktail that contains the neurotransmitter octopamine.
Instead of killing off marine growth, it is said to temporarily stimulate the octopamine receptor in the larvae of molluscs, causing them to be harmlessly repelled from the hull.
The mechanism of action for amitraz as an insecticide is not completely clear but appears to involve alpha-adrenergic agonism, interference with octopamine (the invertebrate equivalent of norepinephrine) action in the central nervous system, uncoupling of oxidative phosphorylation, and inhibition of monoamine oxidases and prostaglandin synthesis [Bonsall and Turnbull 1983; California Environmental Protection Agency (CalEPA) 1995].
In addition, high tyramine and octopamine levels present in the plasma and platelets of patients with migraine support the role of hypothalamic and limbic dysfunctions in the pathophysiology of migraine (7,8).
The major chemical constituents reported in Citrus fruits are flavonoids including hesperitin, hesperidin, neohesperidin, naringenin, tangeritin, auranetin, quercetin, nobiletin [32], limonene, myrcene [33], AY- sitosterol [34] and adrenergic amines including synephrine, octopamine and tyramine [35].
Synthesis and structure-activity relationships and effects of phenylpropanoid amides of octopamine and dopamine on tyrosinase inhibition and antioxidation.
Synergistic action of octopamine receptor agonists on the activity of selected novel insecticides for control of dengue vector Aedes aegypti (Diptera: Culicidae) mosquito.
Octopamine (OA) OA plays an important role in the regulation of a number of key processes in nematodes, including pharyngeal pumping, locomotion and egg-laying.