Delta and kappa opioid receptors in eyestalk ganglia of a crustacean

  title={Delta and kappa opioid receptors in eyestalk ganglia of a crustacean},
  author={Joachim Hanke and Axel Willig and Uri Yinon and Peter P. Jaros},
  journal={Brain Research},

Effects of several exorphins and endorphins on the escape reaction of the cockroach Periplaneta americana under elevated temperature conditions

It has been shown that ED50 decreases statistically significantly with increase of the length of the peptide molecule and its affinity to opioid receptors of the κ-type, which might indicate a specific ability of some plant proteins to regulate (decrease) the insect protective behavior.

Enkephalinergic control of the secretory activity of neurons producing stereoisomers of crustacean hyperglycemic hormone in the eyestalk of the crayfish Orconectes limosus

First evidence for direct inputs from enkephalinergic neurons into dendrites of both chiral forms of the crustacean hyperglycemic hormone (CHH) cell types is provided, which suggests that enkephalins inhibit release of both CHH isoforms via synaptic contacts.

The effect of opioids and their antagonists on the nocifensive response of Caenorhabditis elegans to noxious thermal stimuli

The effect of the opiate morphine and opioid neuropeptides Endomorphin 1 and 2 on the thermal avoidance (Tav) behavior of Caenorhabditis elegans is explored and Naloxone and CTOP were tested in combination with the drugs.

Crustacean neuropeptides

The basic biology of crustacean neuropeptides is reviewed, methodologies currently driving their discovery are discussed, an overview of the known families is provided, and recent data on their control of physiology and behavior is summarized.

Mu opioid receptor in spermatozoa, eggs and larvae of gilthead sea bream (Sparus Aurata) and its involvement in stress related to aquaculture

It is concluded that in sea bream rearing, the use of naloxone/calcium against stress can improve fish farming techniques by reducing larval mortality and consequently increasing productivity.

Evolution of neuronal signalling: Transmitters and receptors

  • C. Hoyle
  • Biology
    Autonomic Neuroscience
  • 2011



Characterization of Two Classes of Opioid Binding Sites in Drosophila melanogaster Head Membranes

The presence of morphine (μ‐like) and EKC (κ‐like), but not δ like, binding sites in Drosophila and indicate that vertebrate opioid peptides are inactive in this preparation are demonstrated.

Immunocytochemical localization of enkephalin and substance P in retina and eyestalk neurones of lobster

It is reported here that immunoreactivity of enkephalin and substance P can be localized to specific neural elements in the visual system of the spiny lobster, Panulirus interruptus, and this results are the first to detect a known peptide in primary photoreceptors.

Opiate-like substances in an invertebrate, an opiate receptor on invertebrate and human immunocytes, and a role in immunosuppression.

In Mytilus recovering from experimentally induced stress, the return of "altered" immunocytes to a more inactive state appears to be due to a significant rise in the content of morphine-like material in the pedal ganglia and hemolymph at this time, suggesting morphine may have a role in calming or terminating the state of immune alertness.

Modulation of the escape response by [d-Ala2]Met-enkephalin in the crab Chasmagnathus

Enkephalins, Biologically Active Neuropeptides in Invertebrates, with Special Reference to Crustaceans

In vivo and in vitro studies support the view that endogenous enkephalin inhibits the exocytotic release of the hyperglycemic neurohormone from the sinus gland.