Exogenous opioid analgesia is mediated by MORs expressed in glutamatergic neurons, whereas endogenous opioid analgesia is mediated by MORs expressed in GABAergic neurons.
William T Birdsong, Bart C Jongbloets ... Tianyi Mao
By differentially modulating the two major excitatory inputs to the striatum, mu- and delta-opioid receptors regulate the balance between thalamic and cortical inputs to the striatum.
Kisspeptin neurons in the hypothalamus release peptide and amino acid neurotransmitters that work together to coordinate the activity of gonadotropin-releasing hormone neurons and subsequent release of reproductive hormones.
Stephanie E Crilly, Wooree Ko ... Manojkumar A Puthenveedu
A GPCR activated by the same agonist engages different conformational biosensors at different subcellular locations, suggesting that location-based conformations drive spatial encoding of signaling.
Opioids stop breathing during overdose by silencing two small brain sites, with just 140 neurons in the breathing rhythm generator exerting the key effect.
Sebastian Korb, Sebastian J Götzendorfer ... Giorgia Silani
Administration of dopamine and opioid receptor antagonists resulted in reduced reward anticipation (effort and increased negative facial reactions), but only administration of opioid antagonists resulted in reduced liking (facial reactions).
Mi Cheong Cheong, Alexander B Artyukhin ... Leon Avery
The discovery that opioid neuropeptide neuronal signaling controls feeding behavior in a genetically tractable invertebrate model may help unravel the mechanisms of appetite control in humans.