Identity of the putative δ1-opioid receptor as a δ–κ heteromer in the mouse spinal cord

G-protein-coupled receptor heterodimerization modulates receptor function

1999 • 1,146 citations

Differential antagonism of delta opioid agonists by naltrindole and its benzofuran analog (NTB) in mice: evidence for delta opioid receptor subtypes.

1991 • 330 citations

Mechanisms of opioid-induced pain and antinociceptive tolerance: descending facilitation and spinal dynorphin

2001 • 269 citations

Lack of antinociceptive cross-tolerance between [D-Pen2, D-Pen5]enkephalin and [D-Ala2]deltorphin II in mice: evidence for delta receptor subtypes.

1991 • 231 citations

The increased efficacy of narcotic antagonists induced by various narcotic analgesics.

1974 • 105 citations

κ- and δ-opioid agonists synergize to produce potent analgesia

1990 • 48 citations

Characterization of opioid receptors modulating neurogenic contractions of circular muscle from porcine ileum and evidence that delta- and kappa-opioid receptors are coexpressed in myenteric neurons.

2001 • 35 citations

Coexistence of kappa- and delta-opioid receptors in rat spinal cord axons

2001 • 33 citations