Endogenous opiates: 1980

Opioid and Nonopioid Mechanisms of Stress Analgesia

1980 • 744 citations

Multiple opiate receptor sites on primary afferent fibres

1980 • 621 citations

Brain Peptides as Neurotransmitters

1980 • 486 citations

Differentiation of delta and mu opiate receptor localizations by light microscopic autoradiography.

1980 • 463 citations

Alteration of ethanol self-administration by naltrexone

1980 • 402 citations

THE ROLE OF ENDOGENOUS OPIATES ON LH SECRETION DURING THE MENSTRUAL CYCLE

1980 • 356 citations

Endorphin-Mediated Increases in Pain Threshold During Pregnancy

1980 • 343 citations

Enkephalin blocks inhibitory pathways in the vertebrate CNS

1980 • 334 citations

EFFECTS OF CHANGES IN THE STRUCTURE OF ENKEPHALINS AND OF NARCOTIC ANALGESIC DRUGS ON THEIR INTERACTIONS WITH μ‐ AND δ‐RECEPTORS

1980 • 314 citations

Endocrine Effects of Naloxone-Induced Opiate Receptor Blockade *

1980 • 301 citations

Altered pain perception in hypertensive humans

1980 • 298 citations

Stress-Induced Eating Is Mediated Through Endogenous Opiates

1980 • 296 citations

Regional distribution of methionine-enkephalin and substance P-like immunoreactivity in normal human brain and in Huntington's disease

1980 • 289 citations

Opioid Receptors Undergo Axonal Flow

1980 • 274 citations

Aging in the 1980's: Psychological Issues

1981 • 270 citations

Immunohistochemical localization of enkephalin in rat forebrain

1980 • 267 citations

An About 50,000-Dalton Protein in Adrenal Medulla: a Common Precursor of [Met]- and [Leu]Enkephalin

1980 • 265 citations

Opiate Analgesia: Evidence for Mediation by a Subpopulation of Opiate Receptors

1980 • 249 citations

Entry of Opioid Peptides into the Central Nervous System

1980 • 247 citations

The actions of motilin, luteinizing hormone releasing hormone, cholecystokinin, somatostatin, vasoactive intestinal peptide, and other peptides on rat cerebral cortical neurons

1980 • 244 citations

Immunocytochemical localization of enkephalin in the neostriatum of rat brain: A light and electron microscopic study

1980 • 241 citations

Opiates and Opioid Peptides Hyperpolarize Locus Coeruleus Neurons in Vitro

1980 • 229 citations

Immunoreactive dynorphin in pituitary and brain.

1980 • 219 citations

Opiate receptors influence vasopressin release from nerve terminals in rat neurohypophysis

1980 • 218 citations

Met-enkephalin circulates in human plasma

1980 • 217 citations

Naloxone acts at central opiate receptors to reverse hypotension, hypothermia and hypoventilation in spinal shock

1980 • 216 citations

Pain sensitivity and opioid activity in genetically and experimentally hypertensive rats

1980 • 211 citations

Physical exercise stimulates marked concomitant release of β-endorphin and adrenocorticotropic hormone (ACTH) in peripheral blood in man

1980 • 208 citations

Evidence for Increased Dopaminergic and Opioid Activity in Patients with Hypothalamic Hypogonadotropic Amenorrhea*

1980 • 206 citations

Interactions between d-Ala-Met-enkephalin, A10 dopaminergic neurones, and spontaneous behaviour in the rat

1980 • 203 citations

Pro-Adrenocorticotropin/Endorphin-Derived Peptides: Coordinate Action on Adrenal Steroidogenesis

1980 • 201 citations

Locomotor activation induced by infusion of endorphins into the ventral tegmental area: evidence for opiate-dopamine interactions.

1980 • 182 citations

In vitro autoradiography of opiate receptors in rat brain suggests loci of "opiatergic" pathways.

1980 • 181 citations

PROFOUND ANALGESIC EFFECTS OF β-ENDORPHIN IN MAN

1980 • 179 citations

Developmental differences between high and low affinity opiate binding sites: Their relationship to analgesia and respiratory depression

1980 • 174 citations

Enkephalin-, VIP- and substance P-like immunoreactivity in the carotid body

1980 • 174 citations

Naloxone reduction of stress-related feeding

1980 • 170 citations

Naloxazone, a long-acting opiate antagonist: effects on analgesia in intact animals and on opiate receptor binding in vitro.

1980 • 170 citations

α-MSH in rat brain: occurence within and outside of β-endorphin neurons

1980 • 168 citations

The neurochemical control of crying

1980 • 166 citations

β-Endorphin: Possible Involvement in the Antihypertensive Effect of Central α-Receptor Activation

1981 • 163 citations

Actions of mu, kappa, sigma, delta and agonist/antagonist opiates on striatal dopaminergic function.

1980 • 161 citations

Brain regulation of gastric secretion: influence of neuropeptides.

1980 • 160 citations

β-Endorphin

1980 • 156 citations

Electrophysiological interactions of enkephalins with neuronal circuitry in the rat hippocampus. I. Effects on pyramidal cell activity

1980 • 156 citations

COMPARISON OF THE BINDING CHARACTERISTICS OF TRITIATED OPIATES AND OPIOID PEPTIDES

1980 • 155 citations

Pain modulation by adrenergic agents and morphine as measured by three pain tests

1980 • 152 citations

Met-enkephalin-Arg6-Phe7, present in high amounts in brain of rat, cattle and man, is an opioid agonist

1980 • 151 citations

Naloxone reduces cigarette smoking

1980 • 151 citations

Pain modulating and reward systems: A single brain mechanism?

1980 • 148 citations

Immunohistochemical studies of peptidergic neurons in the dorsal horn of the spinal cord.

1980 • 148 citations

Leucine Enkephalin: Localization in and Axoplasmic Transport by Sacral Parasympathetic Preganglionic Neurons

1980 • 146 citations

Adrenocortical response to corticotropin is potentiated by part of the amino-terminal region of pro-corticotropin/endorphin.

1980 • 143 citations

A specific radioimmunoassay for the novel opioid peptide dynorphin

1980 • 141 citations

Interaction of tricyclic antidepressants with opiate receptors

1980 • 139 citations

Mood and Behavioral Effects of Physostigmine on Humans Are Accompanied by Elevations in Plasma β-Endorphin and Cortisol

1980 • 137 citations

β-ENDORPHIN AND β-LIPOTROPIN PLASMA LEVELS IN HIRSUTE WOMEN: CORRELATION WITH BODY WEIGHT

1980 • 136 citations

Effects of morphine, β-endorphin and naloxone on catecholamine levels and sexual behavior in the male rat

1980 • 136 citations

Opioid blockade and social comfort in chicks

1980 • 135 citations

Evidence for vagal enkephalinergic neural control of the feline pylorus and stomach

1980 • 134 citations

β-Endorphin and Adrenocorticotropin in Extrapituitary Sites: Gastrointestinal Tract

1980 • 131 citations

Selective conversion of β-endorphin into peptides related to γ- and α-endorphin

1980 • 131 citations

Substance P- and enkephalin-containing neurones in the rat trigeminal system

1980 • 129 citations

Probable precursors of [Leu]enkephalin and [Met]enkephalin in adrenal medulla: peptides of 3-5 kilodaltons.

1980 • 129 citations

Electrophysiological interactions of enkephalins with neuronal circuitry in the rat hippocampus. II. Effects on interneuron excitability

1980 • 127 citations

Thyrotropin releasing hormone, somatostatin, and enkephalin: distribution studies using immunohistochemical techniques.

1980 • 127 citations

Behavioral effects and in vivo degradation of intraventricularly administered dynorphin-(1-13) and D-Ala2-dynorphin-(1-11) in rats

1980 • 125 citations

Control of guinea pig intestinal electrolyte secretion by a delta-opiate receptor.

1980 • 122 citations

Analgesia and hyperalgesia produced in the rat by intrathecal naloxone

1980 • 122 citations

Effects of d-amphetamine and naloxone on brain stimulation reward

1980 • 122 citations

Age-Related Changes in Central Nervous System Beta-Endorphin and ACTH

1980 • 120 citations

Effects of substance P on nociceptive and non-nociceptive trigeminal brain stem neurons

1980 • 119 citations

Effect of antenatal exposure to opiates on the development of opiate receptors in rat brain

1980 • 118 citations

Memory facilitation by naloxone is due to release of dopaminergic and beta-adrenergic systems from tonic inhibition

1980 • 118 citations

Demonstration of two classes of opiate binding sites in the nervous tissue of the marine mollusc Mytilus edulis. Positive homotropic cooperativity of lower affinity binding sites.

1980 • 117 citations

Influence of endogenous opiates on anterior pituitary function.

1980 • 117 citations

High-Molecular-Weight Immunoreactive β-Endorphin in Extracts of Human Placenta Is a Fragment of Immunoglobulin G

1980 • 117 citations

Fasting Associated with Decrease in Hypothalamic β-Endorphin

1980 • 116 citations

Effects of Naloxone and Morphine on the Proestrous Surge of Prolactin and Gonadotropins in the Rat*

1980 • 112 citations

Changes of hippocampal Met-enkephalin content after recurrent motor seizures

1980 • 110 citations

Stress-induced release of prolactin: blockade by dexamethasone and naloxone may indicate beta-endorphin mediation.

1980 • 110 citations

Biosynthesis of precursor corticotropin/endorphin-, corticotropin-, alpha-melanotropin-, beta-lipotropin-, and beta-endorphin-like material by cultured neonatal rat hypothalamic neurons.

1980 • 109 citations

Demonstration of stereospecific opiate binding in the nervous tissue of the marine mollusc Mytilus edulis

1980 • 108 citations

Electroacupuncture analgesia is mediated by stereospecific opiate receptors and is reversed by antagonists of type I receptors

1980 • 108 citations

A protein-lipid model of the opiate receptor

1980 • 105 citations

β-Endorphin-Induced Decrease in Hypothalamic Dopamine Turnover*

1980 • 105 citations

Naloxone reduces social and exploratory activity in the rat

1980 • 103 citations

Long-acting opiate agonists and antagonists: 14-hydroxydihydromorphinone hydrazones

1980 • 103 citations

Mediation of Diurnal Fluctuations in Pain Sensitivity in the Rat by Food Intake Patterns: Reversal by Naloxone

1980 • 102 citations

Experimental Endotoxin Shock: The Pathophysiologic Function of Endorphins and Treatment with Opiate Antagonists

1980 • 102 citations

Naltrexone reduces weight gain, alters “β-endorphin”, and reduces insulin output from pancreatic islets of genetically obese mice

1980 • 101 citations

Opiate antagonist receptor binding in vivo: evidence for a new receptor binding model

1980 • 100 citations

Short-term hormonal effects of naloxone in man

1980 • 99 citations

beta-Endorphin: stability, clearance behavior, and entry into the central nervous system after intravenous injection of the tritiated peptide in rats and rabbits.

1980 • 98 citations

Excitatory action of opioid peptides and opiates on cultured hippocampal pyramidal cells

1980 • 97 citations

Striatal opiate receptors: Pre- and postsynaptic localization

1980 • 97 citations

β-Endorphin and Schizophrenia

1980 • 97 citations

Opioid binding properties of brain and peripheral tissues: evidence for heterogeneity in opioid ligand binding sites.

1980 • 95 citations

Morphine and opioid peptides reduce paraventricular neuronal activity: studies on the rat hypothalamic slice preparation.

1980 • 94 citations

Localization and Quantitation of <i>β</i>-Endorphin in Human Brain and Pituitary

1980 • 94 citations

Placental β-Endorphin-Like Peptides

1980 • 94 citations

Behavioural and endocrine effects of naltrexone in male talapoin monkeys

1980 • 91 citations

A new endogenous opioid peptide from bovine adrenal medulla: Isolation and amino acid sequence of a dodecapeptide (BAM-12P)

1980 • 91 citations

3H-dihydromorphine binding in brain regions of young and aged rats

1980 • 91 citations

Multiple opiate receptors: [3H]ethylketocyclazocine receptor binding and ketocyclazocine analgesia.

1980 • 91 citations

Opiate-like effects of electroconvulsive shock in rats: A differential effect of naloxone on nociceptive measures

1980 • 91 citations

beta-Endorphin: central sites of analgesia, catalepsy and body temperature changes in rats.

1980 • 90 citations

Changes in the β-endorphin content of discrete hypothalamic nuclei during the estrous cycle of the rat

1981 • 90 citations

Relationship between enkephalinergic neurons and the vasopressin‐oxytocin neuroendocrine system of the cat: An immunohistochemical study

1980 • 88 citations

Hyper-Endorphin Syndrome in a Child with Necrotizing Encephalomyelopathy

1980 • 87 citations

Naloxone overcomes the dopaminergic, EEG, and behavioral effects of γ‐hydroxybutyrahe

1980 • 86 citations

Opioid peptides

1980 • 86 citations

Analgesic activity of the naturally occurring heptapeptide [Met]enkephalin-Arg6-Phe7.

1980 • 84 citations

Cyclo (leucylglcine) inhibits the development of morphine induced analgesic tolerance and dopamine receptor supersensitivity in rats

1980 • 84 citations

Anticonvulsants Specific for Petit Mal Antagonize Epileptogenic Effect of Leucine Enkephalin

1980 • 81 citations

Enkephalins interfere with acquisition of an active avoidance response

1980 • 81 citations

Identification of specific leech neurones immunoreactive to enkephalin

1980 • 80 citations

Biochemical characterization of enkephalin-like immunoreactive peptides of adrenal glands

1980 • 80 citations

Endorphins alter acquisition and consolidation of an inhibitory avoidance response in rats

1980 • 79 citations

Evidence that opiate receptors mediate suppression of hypertonic saline-induced drinking in the mouse by narcotic antagonists

1980 • 78 citations

Evidence for Homologous Actions of Pro-Opiocortin Products

1980 • 78 citations

Ventriculocisternal administration of naloxone protects against severe hypotension during endotoxin shock

1980 • 78 citations

Microiontophoretic injection of fluorescent tracer combined with simultaneous immunofluorescent histochemistry for the demonstration of efferents from the caudate-putamen projecting to the globus pallidus

1980 • 78 citations

Suppression by naloxone of water intake induced by deprevation and hypertonic saline in intact and hypophysectomized rats

1980 • 78 citations

Endorphin-parasympathetic interaction in spinal shock

1980 • 78 citations

Post-training intraperitoneal administration of Leu-enkephalin and β-endorphin causes retrograde amnesia for two different tasks in rats

1980 • 77 citations

Paradoxical effect of naloxone on nitrous oxide analgesia in man

1980 • 77 citations

Occurrence of two different endorphins in the salmon pituitary

1980 • 77 citations

Glutamate-induced analgesia: Blockade and potentiation by naloxone

1980 • 76 citations

Endorphin-mediated inhibition of locus coeruleus neurons

1980 • 76 citations

Location and characterization of opiate receptors regulating pituitary secretion

1980 • 76 citations

Behavioral effects of dynorphin1–13 in the mouse and rat: Initial observations

1980 • 74 citations

Cardiovascular effects of peptides related to the enkephalins and β-casomorphin

1980 • 74 citations

Genotype-dependent sensitivity to morphine: role of different opiate receptor populations

1980 • 73 citations

Attenuated Pituitary -Endorphin Release in Estrogen-Treated Rats

1980 • 72 citations

α-endorphin, γ-endorphin and their des-tyrosine fragments in rat pituitary and brain tissue

1980 • 71 citations

Possible role of distinct morphine and enkephalin receptors in mediating actins of benzomorphan drugs (putative kappa and sigma agonists).

1980 • 71 citations

Lack of Modulation of Pituitary Hormone Stress Response by Neural Pathways Involving Opiate Receptors*

1980 • 71 citations

Evidence for Endogenous Opioid Control of Vasopressin Release in Man

1980 • 71 citations

Self-administration of D-Ala2-Met-enkephalinamide at hypothalamic self-stimulation sites

1980 • 71 citations

Enkephalin in bovine adrenal gland: Multiple molecular forms of [met5]-enkephalin immunoreactive peptides

1980 • 70 citations

NALOXONE DECREASES THE DURATION OF PRIMARY APNEA WITH NEONATAL ASPHYXIA

1980 • 68 citations

Naloxone-Induced Behavioral and Physiological Effects in Normal and Manic Subjects

1980 • 65 citations

Storage and secretion of β-endorphin and related peptides by mouse pituitary tumor cells: Regulation by glucocorticoids

1980 • 65 citations

Facilitation of copulatory performance in male rats by naloxone: Effects of hypophysectomy, 17 α-estradiol, and luteinizing hormone releasing hormone

1980 • 64 citations

High Levels ofβ-Endorphin in Hypophyseal Portal Blood*

1980 • 63 citations

Neonatal Monosodium Glutamate

1980 • 63 citations

Beta-endorphin-like immunoactivity in the plasma of heroin addicts and normal subjects

1980 • 61 citations

Modulation of opiate receptor binding in striatum and amygdala by selective mesencephalic lesions

1980 • 61 citations

Differential distribution of β-endorphin and enkephalins in rat and bovine brain

1980 • 60 citations

Isolation of human met-enkephalin and two groups of putative precursors (2K-pro-met-enkephalin) from an adrenal medullary tumour

1980 • 60 citations

The potentiation of spinal analgesia by leucine enkephalin

1980 • 58 citations

Behavioral effects of dynorphin — a novel opioid neuropeptide

1980 • 58 citations

Naloxone reduces fluid intake: Effects of water and food deprivation

1980 • 57 citations

Naloxone facilitates amygdaloid kindling in rats

1980 • 57 citations

Enkephalin inactivation by N-terminal tyrosine cleavage: Purification and partial characterization of a highly specific enzyme from human brain

1980 • 56 citations

The effects of swimming in mice on pain perception and sleeping time in response to hypnotic drugs

1980 • 56 citations

Effects of naloxone on plasma corticosterone in the opiate-naive rat

1980 • 55 citations

Behavioral activating effects of opiates and opioid peptides.

1980 • 54 citations

Cluster formation of opiate (enkephalin) receptors in neuroblastoma cells: differences between agonists and antagonists and possible relationships to biological functions.

1980 • 54 citations

Morphine addiction and withdrawal alters brain peptide concentrations

1980 • 54 citations

Adrenocorticotropin, β-Lipotropin, β-Endorphin, and Corticotropin-Releasing Factor-Like Activity in an Adrenocorticotropin-Producing Nephroblastoma

1980 • 53 citations

Development of narcotic tolerance and physical dependence: Effects of Pro-Leu-Gly-NH2 and cyclo (Leu-Gly)

1980 • 53 citations

Regeneration of the long spinal tracts in the goldfish

1970 • 51 citations

Absence of Cross-Tolerance to Heroin in Morphine-Tolerant Mice

1980 • 49 citations

Failure of Naloxone to Influence Plasma Growth Hormone, Prolactin, and Cortisol Secretions Induced by Insulin Ilypoglycemia*

1980 • 49 citations

Reduced ability of naloxone to stimulate LH and testosterone release in aging male rats; possible relation to increase in hypothalamic met5-enkephalin

1980 • 49 citations

μ- and δ-opiate receptors: Correlation with high and low affinity opiate binding sites

1980 • 49 citations

Specific binding for opiate-like drugs in the placenta

1980 • 48 citations

Enkephalinase: Selective inhibitors and partial characterization

1980 • 47 citations

Interaction of opiate peptide and noradrenalin systems: Light microscopic studies

1980 • 47 citations

Naloxone depresses osmoregulatory drinking in rats

1980 • 47 citations

Enkephalin and fear-motivated behavior.

1980 • 47 citations

Pro- and anticonvulsant action of morphine in rats

1980 • 47 citations

EFFECTS OF ENDORPHINS ON DIFFERENT PARTS OF THE GASTROINTESTINAL TRACT OF RAT AND GUINEA‐PIG in vitro

1980 • 47 citations

Adrenocorticotropic hormone cells and immunoreactive beta-endorphin cells in the human pituitary gland: normal and pathologic conditions studied by the peroxidase-labeled antibody method.

1980 • 47 citations

Growth Hormone-Releasing Effect of an Enkephalin Analog in the Dog: Evidence for Cholinergic Mediation*

1980 • 47 citations

β-Endorphin alters luteinizing hormone secretion via the amygdala but not the hypothalamus

1980 • 46 citations

Intravenous Infusion of β-Endorphin Increases Serum Prolactin, but Not Growth Hormone or Cortisol, in Depressed Subjects and Withdrawing Methadone Addicts*

1980 • 46 citations

Inquiry into endorphinergic feedback mechanisms during the development of opiate tolerance/dependence

1980 • 46 citations

Immunocytochemical demonstration of met-enkephalin in the central nervous system of the domestic fowl

1980 • 45 citations

Regional distribution of endorphin, met5-enkephalin and leu5-enkephalin in the pigeon brain

1980 • 45 citations

Opiate binding sites in the retina: properties and distribution.

1980 • 45 citations

ENKEPHALIN RECEPTOR IN THE RABBIT ILEUM

1980 • 44 citations

Predictors for the outcome of treatment with high frequency transcutaneous electrical nerve stimulation in patients with chronic pain

1980 • 44 citations

Antagonism of stress-induced analgesia by D-phenylalanine, an anti-enkephalinase

1980 • 44 citations

Occurrence of methionine enkephalin in human placental villus

1980 • 43 citations

The effect of hypophysectomy on acupuncture analgesia in the mouse

1980 • 41 citations

Di-isopropyl phosphofluoridate-induced antinociception: possible role of endogenous opioids

1980 • 41 citations

MIF-I suppresses deprivation-induced fluid consumption in rats

1980 • 40 citations

Endogenous opiates: Through 1978

1979 • 40 citations

An iontophoretic survey of opioid peptide actions in the rat limbic system: in search of opiate epileptogenic mechanisms

1980 • 40 citations

Regional distribution of leucine-enkephalin in hypothalamic and extrahypothalamic loci of the human nervous system

1980 • 39 citations

Effects of intravenously administered Leu- or Met-enkephalin on arterial blood pressure

1980 • 39 citations

Naloxone stimulation of luteinizing hormones release in prepubertal female rats; role of serotonergic system

1980 • 39 citations

Antagonistic Actions of MIF-I on the Hypothermia and Hypomotility Induced by Beta-Endorphin Or Morphine

1980 • 38 citations

Dexamethasone Fails to Suppress β-Endorphin Plasma Concentrations in Humans and Rhesus Monkeys

1980 • 38 citations

Thermoregulatory effects of (D-ala2)-methionine-enkephalinamide in the cat. Evidence for multiple naloxone-sensitive opioid receptors

1980 • 38 citations

Pain, enkephalin and acupuncture

1980 • 38 citations

Role of Endogenous Opioids in Neurohypophysial Function of Man*

1980 • 37 citations

Inactivation of the opiate receptor in bovine caudate nucleus by azide enkephalin analogs.

1980 • 36 citations

Actions of iontophoretically applied morphine on hypothalamic thermosensitive units

1980 • 35 citations

The effect of hypophysectomy on acupuncture analgesia in the mouse

1980 • 35 citations

Neonatal administration of met-enkephalin facilitates maze performance of adult rats

1980 • 33 citations

Naloxone-like actions of MIF-1 do not require the presence of the pituitary

1980 • 33 citations

Development and validation of a sensitive radioimmunoassay for naturally occuring β-endorphin-like peptides in human plasma

1980 • 33 citations

Excitatory and Inhibitory Effects of Opiates in the Rat Vas Deferens: A Dual Mechanism of Opiate Action

1980 • 33 citations

The Distribution of Forms of Adrenocorticotropin and Endorphin in Normal, Tumorous, and Autopsy Human Anterior Pituitary Tissue: Virtual Absence of 13K Adrenocorticotropin*

1980 • 33 citations

Differential effects of systemic versus intracranial injection of opiates on central, orofacial and lower body nociception: somatotypy in bulbar analgesia systems

1980 • 33 citations

Memory, opiate receptors, and aging

1980 • 32 citations

Enkephalin biosynthetic pathway: proteins of 8000 and 14,000 daltons in bovine adrenal medulla.

1980 • 32 citations

D-amphetamine-induced hypothermia and hypermotility in rats: Changes after systemic administration of beta-endorphin

1980 • 31 citations

Opiate receptor antagonism by l-prolyl-l-leucyl-glycinamide, MIF-I

1980 • 31 citations

Asthma induced by enkephalin.

1980 • 31 citations

β‐ENDORPHIN AND β‐MSH IN HUMAN PLASMA

1980 • 29 citations

Opiate receptors in highly purified neuronal cell populations isolated in bulk from embryonic chick brain

1980 • 29 citations

Dopaminergíc Mediation of <i>β</i>-Endorphin-Induced Prolactin Secretion

1980 • 29 citations

Peptide inhibitor of morphine- and beta-endorphin-induced analgesia.

1980 • 29 citations

Morphine and methionine-enkephalin: different effects on spontaneous and evoked neuronal firing in the mesencephalic reticular formation of the rat.

1980 • 28 citations

Effects of Morphine and Naloxone on Phasic Release of Luteinizing Hormone and Follicle-Stimulating Hormone

1980 • 28 citations

Effects of heroin and naltrexone on plasma prolactin levels in man

1980 • 27 citations

Naloxone promotes stimulus-evoked vasopressin release in vivo

1980 • 27 citations

Levels of immunoreactive dynorphin in brain and pituitary of Brattleboro rats

1980 • 27 citations

Effects of morphine and naloxone on the K+-stimulated release of methionine-enkephalin from slices of rat corpus striatum

1980 • 27 citations

Inhibition of vasopressin secretion by a met-enkephalin (FK 33-824) in humans

1980 • 27 citations

beta-Endorphin omission analogs: dissociation of immunoreactivity from other biological activities.

1980 • 26 citations

RELEASE OF OPIOID PEPTIDES IN ANAESTHETIZED CATS?

1980 • 26 citations

Actions of methionine enkephalin and morphine on single neuronal activity in Helix pomatia L.

1980 • 25 citations

Endogenous opiates: 1979

1980 • 25 citations

Peptides: Pharmacological evidence for three forms of chemical excitability in cultured mouse spinal neurons

1980 • 24 citations

Effects of Pavlovian conditioning and MIF-I on the development of morphine tolerance in rats

1980 • 24 citations

Effects of naloxone on pavlovian conditioning of eyeblink and heart rate responses in rabbits

1980 • 24 citations

Radioimmunoassay of methionine5-enkephalin sulphoxide: Phylogenetic and anatomical distribution

1980 • 24 citations

Presence of opioid peptides in a neuroblastoma X glioma hybrid cell line

1980 • 23 citations

Depressant and excitant effects of intraspinal microinjections of morphine and methionine-enkephalin in the cat

1980 • 23 citations

Development of Tolerance to the Prolactin-Releasing Action of Morphine and Its Modulation by Hypothalamic Dopamine*

1980 • 23 citations

Opioid peptides: search for the precursors

1980 • 23 citations

Beta-Endorphin: dissociation of receptor binding activity from analgesic potency.

1980 • 22 citations

Ultrastructural localization of a fragment (16K) of the common precursor for adrenocorticotropin (ACTH) and β-lipotropin (β-LPH) in the rat hypothalamus

1980 • 22 citations

Distribution of immunoreactive enkephalins in adrenal paraneurons: Preferential localization in varicose processes, and terminals

1980 • 22 citations

Tyrosine-modified analogs of methionine-enkephalin and their effects on the mouse vas deferens

1980 • 21 citations

Comparative study of opiate and enkephalin receptors on lower vertebrates and higher vertebrates

1980 • 21 citations

Intracerebral naloxone and the reaction to thermal noxious stimulation in the rat

1980 • 21 citations

Influence of unilateral olfactory bulbectomy on opiate and other binding sites in the contralateral bulb

1980 • 20 citations

Methionine-enkephalin antagonism and endorphin potentiation of narcotic-induced analgesia

1980 • 20 citations

Dopaminergic and Opioid Compounds

1980 • 20 citations

Radioreceptor assay of methionine-enkephalin-like substance in human cerebrospinal fluid

1980 • 19 citations

SYNTHESIS AND RADIORECEPTOR BINDING ACTIVITY OF TURKEY β‐ENDORPHIN AND DEACETYLATED SALMON ENDORPHIN

1980 • 19 citations

Naloxone enhancement of punishment in the rat

1980 • 18 citations

Generation of methionine and leucine-enkephalin from precursor molecules by cation-sensitive neutral endopeptidase of bovine pituitary

1980 • 18 citations

Naloxone and shuttlebox self-stimulation in the rat

1980 • 17 citations

Leucine-enkephalin immunoreactivity: localization in rat brain cells in culture

1980 • 17 citations

Isolation, characterization and opiate activity of β-endorphin from the pituitary gland of the ostrich, Struthio camelus

1980 • 17 citations

Rapid development of tolerance to the hyperthermic effect of β-endorphin, and cross-tolerance between the enkephalins and β-endorphin

1980 • 17 citations

Dissociation between ACTH and beta endorphin immunoreactivity in cells of the rat pituitary gland

1980 • 17 citations

Effects of met-enkephalin on slow synaptic inhibition in frog sympathetic ganglion

1980 • 16 citations

Naloxone-reversible effects of d-Ala2-Met5-enkephalinamide-induced behavioral activity in rats

1980 • 16 citations

Effects of different opiate agonists on melanocyte-stimulating hormone release: in vivo and in vitro studies

1980 • 16 citations

d-ala2-methionine-enkephalinamide self-administration in the morphine-dependent rat

1980 • 16 citations

Isolation and characterization of beta-endorphin-like peptides from bovine brains.

1980 • 15 citations

Opiate regulation of estradiol-2-hydroxylase in brains of male rats: mechanism for control of pituitary hormone secretion.

1980 • 15 citations

Structure-NCS activity studies with the enkephalins

1980 • 15 citations

The relationship between endorphins and alcohol-induced subcortical activity

1980 • 15 citations

Effect of naloxone and morphine on guinea pig tonic immobility

1980 • 15 citations

Thyroid Hormone Regulation of Central Nervous System (CNS) Beta-Endorphin and ACTH

1980 • 14 citations

ISOLATION AND CHARACTERIZATION OF β‐LIPOTROPIN FROM FIN WHALE PITUITARY GLANDS

1980 • 14 citations

Reduction in opiate activation after chronic electroconvulsive shock — Possible role for endorphins in the behavioral effects of convulsive shock treatment

1980 • 13 citations

Learning and the development of alcohol-tolerance and dependence

1980 • 13 citations

Opiate modulation of learning and memory in the rat.

1980 • 12 citations

Ontogeny of Opiate Receptor Sites in Brain: Apparent Lack of Low Affinity Sites during Early Neonatal Life

1980 • 12 citations

Resistance of FK 33–824 and other enkephalin analogues to peptidase degradation

1980 • 12 citations

Different behavioral effects following intracerebral, intracerebroventricular or intraperitoneal injections of naloxone in the rat

1980 • 12 citations

Hemodialysis, endorphins, and schizophrenia

1980 • 12 citations

Effects of centrally administered pentazocine and ethylketocyclazocine on thermoregulation in the cat

1980 • 12 citations

Alterations in β-endorphin-induced locomotor activity in morphine-tolerant rats

1980 • 12 citations

An inhibitor of opioid peptide degradation produces analgesia in mice

1980 • 12 citations

The stimulatory effect of beta-endorphin on the plasma prolactin levels was diminished in the rats treated with 6-hydroxydopamine

1980 • 12 citations

Lack of cross-tolerance between morphine and Leu-enkephalin in the mouse vas deferens

1980 • 11 citations

Heterogeneity of endogenous opiates: H-endorphin is not correlated with enkephalin or with β-endorphin

1980 • 11 citations

Comparative effects of synthetic enkephalinamides and morphine on abstinence responses in morphine-dependent mice

1980 • 11 citations

β-ENDORPHIN: HYPERTHERMIA IN MICE BY INTRAVENOUS INJECTION

1980 • 11 citations

Endorphins: naloxone failure to increase sexual arousal in sexually unresponsive women: a preliminary report.

1980 • 11 citations

Effects of Methionine-Enkephalin on Intestinal Circulation and Oxygen Consumption

1980 • 11 citations

The role of the nucleus accumbens and nigrostriatum in enkephalin-induced myoclonus

1980 • 11 citations

Effect of morphine and naloxone on leu-enkephalin-like immunoreactivity in dogs.

1980 • 10 citations

PLASMA ETHANOL, ENDORPHIN, AND GLUCOSE EXPERIMENT

1980 • 10 citations

Endogenous opioid systems in brain

1980 • 9 citations

Ventilatory effects of naloxone and morphine in the developing opossum

1980 • 9 citations

Pupillary effects of leucine and methionine enkephalin in rats after intraperitoneal administration

1980 • 8 citations

Learning and the development of alcohol-tolerance and dependence The role of vasopressin-like peptides

1980 • 8 citations

Naloxone potentiates the disruptive effects of mescaline on operant responding in the rat

1980 • 8 citations

An intracellular opiate receptor

1980 • 6 citations

Stereospecific, dose-dependent antagonism by naloxone of non-opiate behavior in mice

1980 • 6 citations

Antibiotics as inhibitors of enkephalin degradation by human brain

1980 • 5 citations

Candidate mechanisms for inhibition of neurotransmitter release by narcotic analgesics and endorphins

1980 • 5 citations

Regional brain morphine injections selectively attenuate aspects of septal hyperreactivity: A multivariate assessment

1980 • 5 citations

Sulfonated enkephalin: An active peptide resistant to serum degradative proteolysis

1980 • 5 citations

Changes in brain N-demethylation and opiate receptor content correlate with analgesic effectiveness of morphine.

1980 • 2 citations

Morphine release and displacement by naloxone in morphine naive and withdrawn rats

1980 • 2 citations

Enkephalin-induced growth hormone release in the dog

1980 • 1 citations