54 articles for PS Portoghese
The following articles (labelled with PubMed ID or TBD) are for your review
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Article Title
Organization
Opioid agonist and antagonist activities of peripherally selective derivatives of naltrexamine and oxymorphamine.

University of Minnesota
X-ray crystal structure of the opioid ligand naltrexonazine.

TBA
Irreversible blockage of opioid receptor types by ester homologues of beta-funaltrexamine.

TBA
Synthesis and biological activity of analogues of beta-chlornaltrexamine and beta-funaltrexamine at opioid receptors.

TBA
Different receptor sites mediate opioid agonism and antagonism.

TBA
Stereochemical studies on medicinal agents. 25. Absolute configuration and analgetic potency of beta-1,2-dimethyl-2-phenyl-4-(propionyloxy)piperidine enantiomers.

TBA
Synthesis and biological evaluation of 9,11-azo-13-oxa-15-hydroxyprostanoic acid, a potent inhibitor of platelet aggregation.

TBA
Synthesis and in vitro characterization of radioiodinatable benzodiazepines selective for type 1 and type 2 cholecystokinin receptors.

Mayo Clinic
Naphthalene dicarboxaldehyde as an electrophilic fluorogenic moiety for affinity labeling: application to opioid receptor affinity labels with greatly improved fluorogenic properties.

University of Minnesota
Covalently induced activation of the delta opioid receptor by a fluorogenic affinity label, 7'-(phthalaldehydecarboxamido)naltrindole (PNTI).

University of Minnesota
Investigation of the selectivity of oxymorphone- and naltrexone-derived ligands via site-directed mutagenesis of opioid receptors: exploring the"address" recognition locus.

University of Minnesota
Transformation of a kappa-opioid receptor antagonist to a kappa-agonist by transfer of a guanidinium group from the 5'- to 6'-position of naltrindole.

University of Minnesota
Binding of norbinaltorphimine (norBNI) congeners to wild-type and mutant mu and kappa opioid receptors: molecular recognition loci for the pharmacophore and address components of kappa antagonists.

University of Minnesota
Isosteric replacement of acidic with neutral residues in extracellular loop-2 of the kappa-opioid receptor does not affect dynorphin A(1-13) affinity and function.

University of Minnesota
Molecular docking reveals a novel binding site model for fentanyl at the mu-opioid receptor.

University of Minnesota
Reporter affinity labels: an o-phthalaldehyde derivative of beta-naltrexamine as a fluorogenic ligand for opioid receptors.

University of Minnesota
Mutational evidence for a common kappa antagonist binding pocket in the wild-type kappa and mutant mu[K303E] opioid receptors.

University of Minnesota
Pyrrolomorphinans as delta opioid receptor antagonists. The role of steric hindrance in conferring selectivity.

University of Minnesota
7-Spiroindanyl derivatives of naltrexone and oxymorphone as selective ligands for delta opioid receptors.

University of Minnesota
Opioid antagonist activity of naltrexone-derived bivalent ligands: importance of a properly oriented molecular scaffold to guide"address" recognition at kappa opioid receptors.

University of Minnesota
Arylacetamide-derived fluorescent probes: synthesis, biological evaluation, and direct fluorescent labeling of kappa opioid receptors in mouse microglial cells.

University of Minnesota
7'-Substituted amino acid conjugates of naltrindole. Hydrophilic groups as determinants of selective antagonism of delta 1 opioid receptor-mediated antinociception in mice.

University of Minnesota
Synthesis of naltrexone-derived delta-opioid antagonists. Role of conformation of the delta address moiety.

University of Minnesota
Synthesis and delta-opioid receptor antagonist activity of a naltrindole analogue with a regioisomeric indole moiety.

University of Minnesota
Structure-activity relationship of N17'-substituted norbinaltorphimine congeners. Role of the N17' basic group in the interaction with a putative address subsite on the kappa opioid receptor.

University of Minnesota
Possible contribution of a glutathione conjugate to the long-duration action of beta-funaltrexamine.

University of Minnesota
A selective delta 1 opioid receptor agonist derived from oxymorphone. Evidence for separate recognition sites for delta 1 opioid receptor agonists and antagonists.

University of Minnesota
Synthesis and kappa-opioid antagonist selectivity of a norbinaltorphimine congener. Identification of the address moiety required for kappa-antagonist activity.

University of Minnesota
A remarkable change of opioid receptor selectivity on the attachment of a peptidomimetic kappa address element to the delta antagonist, natrindole: 5'-[N2-alkylamidino)methyl]naltrindole derivatives as a novel class of kappa opioid receptor antagonists.

University of Minnesota
Opioid agonist and antagonist activities of morphindoles related to naltrindole.

University of Minnesota
An approach to the design of receptor-type-selective non-peptide antagonists of peptidergic receptors: delta opioid antagonists.

University of Minnesota
Role of spacer and address components in peptidomimetic delta opioid receptor antagonists related to naltrindole.

University of Minnesota
Role of the spacer in conferring kappa opioid receptor selectivity to bivalent ligands related to norbinaltorphimine.

University of Minnesota
Design of peptidomimetic delta opioid receptor antagonists using the message-address concept.

University of Minnesota
Binaltorphimine-related bivalent ligands and their kappa opioid receptor antagonist selectivity.

University of Minnesota
Hybrid bivalent ligands with opiate and enkephalin pharmacophores.

University of Minnesota
Peptides as receptor selectivity modulators of opiate pharmacophores.

TBA
Synthesis and biological evaluation of phosphonamidate peptide inhibitors of enkephalinase and angiotensin-converting enzyme.

TBA
Synthesis and biological evaluation of a metazocine-containing enkephalinamide. Evidence for nonidentical roles of the tyramine moiety in opiates and opioid peptides.

TBA
Induced association of mu opioid (MOP) and type 2 cholecystokinin (CCK2) receptors by novel bivalent ligands.

University of Minnesota
Naloxone acts as a potent analgesic in transgenic mouse models of sickle cell anemia.

University of Minnesota
Potent and selective indolomorphinan antagonists of the kappa-opioid receptor.

University of Minnesota
7-spirobenzocyclohexyl derivatives of naltrexone, oxymorphone, and hydromorphone as selective opioid receptor ligands.

University of Minnesota
Aspartic acid conjugates of 2-(3,4-dichlorophenyl)-N-methyl-N-[(1S)-1(3-aminophenyl)-2-(1-pyrrolidi nyl) ethyl]acetamide: kappa opioid receptor agonists with limited access to the central nervous system.

University of Minnesota
3-Hydroxy-17-aralkylmorphinans as potential opiate receptor-site-directed alkylating agents.

TBA
Stereochemical studies on medicinal agents. 23. Synthesis and biological evaluation of 6-amino derivatives of naloxone and naltrexone.

TBA
2-(3,4-Dichlorophenyl)-N-methyl-N-[(1S)-1-(3-isothiocyanatophenyl)-2-(1-pyrrolidinyl)ethyl]acetamide: an opioid receptor affinity label that produces selective and long-lasting kappa antagonism in mice.

University of Minnesota
kappa Opioid receptor selective affinity labels: electrophilic benzeneacetamides as kappa-selective opioid antagonists.

University of Minnesota
Electrophilic N-benzylnaltrindoles as delta opioid receptor-selective antagonists.

University of Minnesota
o-Naphthalenedicarboxaldehyde derivative of 7'-aminonaltrindole as a selective delta-opioid receptor affinity label.

University of Minnesota
A bivalent ligand (KDN-21) reveals spinal delta and kappa opioid receptors are organized as heterodimers that give rise to delta(1) and kappa(2) phenotypes. Selective targeting of delta-kappa heterodimers.

University of Minnesota
Design and synthesis of naltrexone-derived affinity labels with nonequilibrium opioid agonist and antagonist activities. Evidence for the existence of different mu receptor subtypes in different tissues.

TBA
Opioid agonist and antagonist bivalent ligands. The relationship between spacer length and selectivity at multiple opioid receptors.

TBA
Delta opioid antagonist activity and binding studies of regioisomeric isothiocyanate derivatives of naltrindole: evidence for delta receptor subtypes.

University of Minnesota