Results 51 to 60 of about 13,883 (215)

Peptidoglycan-dependent NF-κB activation in a small subset of brain octopaminergic neurons controls female oviposition

open access: yeseLife, 2019
When facing microbes, animals engage in behaviors that lower the impact of the infection. We previously demonstrated that internal sensing of bacterial peptidoglycan reduces Drosophila female oviposition via NF-κB pathway activation in some neurons (Kurz
Ambra Masuzzo   +7 more
doaj   +1 more source

Activities of Octopamine and Synephrine Stereoisomers on Octopaminergic Receptor Subtypes in Locust Skeletal Muscle

open access: yes, 1988
The activities of the (−) and (+)- forms of p-, m- and o- octopamine and p- and m- synephrine have been compared on the different subtypes of octopamine receptor present in the extensor-tibiae neuromuscular preparation from the locust hindleg.
C Mohan Thonoor   +2 more
core   +1 more source

Octopamine neuromodulation regulates Gr32a-linked aggression and courtship pathways in Drosophila males. [PDF]

open access: yesPLoS Genetics, 2014
Chemosensory pheromonal information regulates aggression and reproduction in many species, but how pheromonal signals are transduced to reliably produce behavior is not well understood.
Jonathan C Andrews   +7 more
doaj   +1 more source

Regulation and modulation of biogenic amine neurotransmission in Drosophila and Caenorhabditis elegans

open access: yesFrontiers in Physiology, 2023
Neurotransmitters are crucial for the relay of signals between neurons and their target. Monoamine neurotransmitters dopamine (DA), serotonin (5-HT), and histamine are found in both invertebrates and mammals and are known to control key physiological ...
Katarzyna D. Rosikon   +2 more
doaj   +1 more source

Spider Mites: Genetic Models to Inform Herbivore and Chelicerate Biology

open access: yesBioEssays, Volume 48, Issue 5, May 2026.
Chelicerates include spiders, scorpions and ticks, and also spider mites that damage crops. Many of the features that make spider mites crop pests have facilitated their adoption as genetically tractable chelicerates. The expanding genetic toolkit developed using spider mites has potential to inform genetic studies in other chelicerates as well ...
Richard M. Clark   +3 more
wiley   +1 more source

Phthalylglycyl Chloride as a Derivatization Agent for UHPLC-MS/MS Determination of Adrenaline, Dopamine and Octopamine in Urine

open access: yesMolecules, 2023
Dopamine, adrenaline and octopamine are small polar molecules that play a vital role in regulatory systems. In this paper, phthalylglycyl chloride was proposed as a derivatization agent for octopamine, adrenaline and dopamine determination in urine for ...
Maria Zorina   +6 more
doaj   +1 more source

Monitoring Biogenic Amines: Comparative Assessment of Detection Methods for Key Market Marine and Freshwater Species

open access: yesJournal of Food Science, Volume 91, Issue 5, May 2026.
ABSTRACT Biogenic amines, primarily histamine, cadaverine, and putrescine, are important indicators of microbial spoilage and potential health risks. This review summarizes established and novel analytical methods for quantitatively determining biogenic amines in fish and fish products, along with their limits of detection in these complex matrices ...
Lasse Petersen
wiley   +1 more source

Second messengers of octopamine receptors in the snail Lymnaea

open access: yes, 2004
We describe octopamine responses of 3 large buccal neurons of Lymnaea and test the hypothesis that these are cAMP-dependent.
Vehovszky, Ágnes   +7 more
core   +1 more source

General Stress Responses in the Honey Bee

open access: yesInsects, 2012
The biological concept of stress originated in mammals, where a “General Adaptation Syndrome” describes a set of common integrated physiological responses to diverse noxious agents.
Naïla Even   +2 more
doaj   +1 more source

Octopamine Neurons in Lobsters: Location, Morphology, Release of Octopamine and Possible Physiological Role

open access: yesCold Spring Harbor Symposia on Quantitative Biology, 1976
Octopamine cells are found along second thoracic roots, where they serve as neurosecretory neurons capable of releasing octopamine at two distinct points: one into the hemolymph immediately before it enters the gills; one into the hemolymph immediately after it leaves the gills. The octopamine cells receive a cholinergic synaptic input. We presume that
E A, Kravitz   +4 more
openaire   +2 more sources

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