Neuroscience
Opiate
100%
δ -Opioid Receptor
92%
Morphine
75%
Agonist
65%
Enkephalin
60%
Neuropathic Pain
56%
Eicosanoid Receptor
42%
Allodynia
38%
Hyperalgesia
32%
Intrathecal
30%
Spinal Nerve
27%
In Vivo
27%
Deltorphin
27%
Delta Opiate Receptor
26%
Headache
24%
Dynorphin
22%
Naltrindole
20%
Naloxone
18%
Rostral Ventromedial Medulla
17%
Migraine
17%
Behavior (Neuroscience)
16%
Dynorphin A
15%
Opioid Antagonist
15%
Endorphin
13%
Receptor Subtype
13%
Receptor Agonists
13%
Κ-opioid receptor
12%
Antisense Oligodeoxynucleotide
12%
enkephalin[2,5 Dextro Penicillamine]
12%
Nucleus Accumbens
11%
μ-Opioid Receptor
11%
Anterior Cingulate Cortex
11%
Cholecystokinin
11%
Binding Site
10%
Medication Overuse
10%
Opioid Peptide
10%
Nociceptor
9%
In Vitro
9%
Dorsal Root Ganglion
9%
Ileum
8%
Bombesin
8%
Conditioned Place Preference
8%
Capsaicin
8%
Calcitonin
7%
Binding Affinity
7%
Receptor Antagonist
7%
Central Nervous System
6%
Medulla
6%
Brainstem
6%
Resiniferatoxin
6%
Pharmacology, Toxicology and Pharmaceutical Science
Opiate Receptor
93%
Opiate
83%
Mouse
67%
Receptor
59%
Morphine
55%
Enkephalin
51%
Opiate Agonist
45%
Neuropathic Pain
43%
Analgesic Agent
30%
Antinociception
29%
Dynorphin A
27%
Biological Activity
23%
Chronic Pain
23%
Dynorphin
21%
Opiate Peptide
20%
Delta Opiate Receptor
20%
Intrathecal
20%
Deltorphin
19%
Structure Activity Relationship
16%
Naloxone
16%
Guinea Pig
16%
Neurokinin 1 Receptor Antagonist
15%
enkephalin[2,5 Dextro Penicillamine]
15%
Ileum
14%
Erethism
13%
Enkephalin Derivative
13%
Endorphin
13%
Naltrindole
13%
Allodynia
13%
IC50
13%
Side Effect
13%
Opioid Antagonist
12%
Biphalin
12%
Hyperalgesia
12%
Neuronal Nitric Oxide Synthase
11%
Bradykinin Receptor
11%
Delta Opiate Receptor Agonist
11%
Amino Acid
10%
Nerve Injury
10%
μ-Opioid Receptor
10%
Pain
10%
Receptor Subtype
9%
Cholecystokinin
9%
Injury
8%
Narcotic Agent
8%
Opioid-Induced Hyperalgesia
7%
Nitric Oxide Synthase Inhibitor
7%
Thermal Hyperalgesia
7%
Glycopeptide
6%
Capsaicin
6%
Keyphrases
Opioid Receptors
77%
Enkephalin
61%
Morphine
47%
Antinociceptive
45%
Opioids
44%
Antinociception
38%
Neuropathic Pain
32%
Opioid Antagonist
30%
Opioid Agonist
20%
Naltrindole
19%
Biological Activity
18%
Delta Receptor
18%
Dynorphin
18%
Deltorphin
16%
Chronic Pain
15%
Antagonism
15%
Dynorphin A
14%
Binding Affinity
14%
DPDPE
13%
Pharmacophore
13%
δ Opioid Receptor
13%
Opioid Peptides
13%
Rat Brain
12%
Spinal Nerve Ligation
12%
Supraspinal
11%
Receptor Subtypes
11%
Neurokinin-1 Receptor Antagonist
11%
Morphine Antinociception
11%
Structure-activity Relationship
10%
μ-opioid Receptor
10%
Enkephalin Analogues
10%
Antagonist Activity
10%
Binding Site
10%
Naloxone
9%
Biphalin
9%
Agonist Activity
9%
Antisense Oligonucleotides
9%
Kappa Opioid Receptor
9%
Cholecystokinin
9%
Intrathecal
8%
Nerve Injury
8%
Synthetic Evaluation
8%
Spinal Cord
8%
Hyperalgesia
8%
Rostral Ventrolateral Medulla
8%
Analgesia
8%
Mouse Vas Deferens
8%
Nonapeptides
7%
Pain Relief
7%
Biological Evaluation
7%