Alpha-2-adrenergic and opioid receptor additivity in rat locuscoeruleus neurons

LS Stone, GL Wilcox - Neuroscience letters, 2004 - Elsevier
Functional interactions between G protein-coupled receptors (GPCRs) are widely reported
whereas the mechanisms underlying these interactions remain unclear. A rapidly growing …

Antisenses to opioid receptors attenuate ATP-gated K+ channel opener-induced antinociception

AB Lohmann, SP Welch - European journal of pharmacology, 1999 - Elsevier
The ATP-gated K+ channel openers diazoxide, levcromakalim and morphine induce cell
hyperpolarization by opening the K+ channels and enhancing K+ efflux. This …

Presynaptic inhibitory action of opioids on synaptic transmission in the rat periaqueductal grey in vitro.

CW Vaughan, MJ Christie - The Journal of physiology, 1997 - Wiley Online Library
1. The actions of opioids on synaptic transmission in rat periaqueductal grey (PAG)
neurones were examined using whole‐cell patch‐clamp recordings in brain slices. 2 …

Opiates suppress a resting sodium-dependent inward current and activate an outward potassium current in locus coeruleus neurons

M Alreja, GK Aghajanian - Journal of Neuroscience, 1993 - Soc Neuroscience
The opioid peptide met-enkephalin (met-ENK) produces an outward current with an
increase in input conductance in locus coeruleus (LC) neurons. This current has been …

Potassium conductance increased by noradrenaline, opioids, somatostatin, and G-proteins: whole-cell recording from guinea pig submucous neurons

H Tatsumi, M Costa, M Schimerlik… - Journal of …, 1990 - Soc Neuroscience
Agonists at alpha 2-adrenoceptors, delta-opioid receptors, and somatostatin receptors were
applied to dissociated guinea pig submucous plexus neurons; whole-cell recordings of …

Modulation of High-Voltage Activated Ca2+ Channels in the Rat Periaqueductal Gray Neurons by μ-Type Opioid Agonist

CJ Kim, JS Rhee, N Akaike - Journal of neurophysiology, 1997 - journals.physiology.org
Kim, Chang-Ju, Jeong-Seop Rhee, and Norio Akaike. Modulation of high-voltage activated
Ca2+ channels in the rat periaqueductal gray neurons by μ-type opioid agonist. J …

Kappa‐selective opioid receptor agonists leumorphin and dynorphin inhibit supraoptic neurons in rat hypothalamic slice preparations

K Inenaga, H Imura, N Yanaihara… - Journal of …, 1990 - Wiley Online Library
To clarify the effects of opioid peptides, and in particular the effects of kappa‐receptor
agonists on the activity of supraoptic neurons, extracellular recordings were made from 71 …

Selective modulation of excitatory transmission by μ-opioid receptor activation in rat supraoptic neurons

QS Liu, S Han, YS Jia, G Ju - Journal of Neurophysiology, 1999 - journals.physiology.org
Opioid peptides have profound inhibitory effects on the production of oxytocin and
vasopressin, but their direct effects on magnocellular neuroendocrine neurons appear to be …

Expression and properties of hyperpolarization‐activated current in rat dorsal root ganglion neurons with known sensory function

LL Gao, S McMullan, L Djouhri, C Acosta… - The Journal of …, 2012 - Wiley Online Library
Key point• I h is a hyperpolarisation‐activated current that influences neuronal excitability
and is present in some sensory neurons.• The magnitude and properties of Ih in different …

Two distinct forms of desensitization of G-protein coupled inwardly rectifying potassium currents evoked by alkaloid and peptide μ-opioid receptor agonists

C Blanchet, M Sollini, C Lüscher - Molecular and Cellular Neuroscience, 2003 - Elsevier
μ-Opioid receptors (MORs) activate G-protein coupled inwardly rectifying potassium (GIRK)
channels. The peptide agonist [d-Ala2, NMe-Phe4, Gly5-ol] enkephalin (DAMGO), but not …