Browse Items · Pediatric Palliative Care Library

A Genome-wide Drosophila Screen for Heat Nociception Identifies alpha2delta3 as an Evolutionarily Conserved Pain Gene

Worldwide, acute, and chronic pain affects 20% of the adult population and represents an enormous financial and emotional burden. Using genome-wide neuronal-specific RNAi knockdown in Drosophila, we report a global screen for an innate behavior and…

A possible role for saliva as a diagnostic fluid in patients with chronic pain

OBJECTIVES: The focus of this review was on proteins and peptides found in saliva. Of greatest interest were those neuropeptides relevant to nociception and to the pathogenesis of chronic pain syndromes. An additional goal was to develop a…

Age-related changes in mitogen-induced beta-endorphin release from human peripheral blood mononuclear cells

beta-Endorphin is an opioid peptide synthesized in the pituitary, hypothalamus, and immunocytes, known to affect immune responses both when added in vitro and when its synthesis is increased in vivo (e.g., during stress). We show here that, similar…

Analysis of proopiomelanocortin (POMC) messenger ribonucleic acid and POMC-derived peptides in human peripheral blood mononuclear cells: no evidence for a lymphocyte-derived POMC system

A number of recent studies suggest that cells of the immune system, e.g. peripheral blood mononuclear cells (PBMC), can synthesize and process POMC and secrete POMC-derived peptides, such as ACTH and endorphins, upon immune and hormonal challenges.…

Associations between the neuroendocrine and immune systems

Organisms respond to infection with complex adaptations involving bidirectional communication between the immune and neuroendocrine systems. The idea of intercellular communication between the neuroendocrine and immune systems via common signal…

Tags: 1995, Animals, Backlog, Biomarkers of Pain, Blalock JE, Cell Communication, Cytokines/physiology, Hormones/physiology, Humans, Hypothalamo-Hypophyseal System/physiology, Immune System/physiology, Interleukins/physiology, Journal Article, Journal Of Leukocyte Biology, Leukocytes/physiology, Neurosecretory Systems/physiology, Signal Transduction, Weigent DA

Beta endorphin concentrations in PBMC of patients with different clinical phenotypes of multiple sclerosis

The possible link between the opioid peptide beta endorphin and the heterogeneity of the clinical course of multiple sclerosis (MS) was investigated. Peripheral blood mononuclear cells (PBMC) concentrations of beta endorphin were measured in 50…

beta-Endorphin and adrenocorticotropin are selected concomitantly by the pituitary gland

The opiate-like peptide beta-endorphin and adrenocorticotropin are concomitantly secreted in increased amounts by the adenohypophysis in response to acute stress or long-term adrenalectomy as well as in vitro in response to purified corticotropin…

Beta-endorphin and cholecystokinin 8 concentrations in peripheral blood mononuclear cells of autistic children

beta-Endorphin (beta-EP) and cholecystokinin 8 (CCK-8) concentrations in peripheral blood mononuclear cells were measured in 12 drug-free autistic (AU) children, in 10 drug-free children with pervasive developmental disorders (PDD) and in 11 healthy…

Beta-endorphin concentration after administration of sucrose in preterm infants

BACKGROUND: Sucrose is an effective analgesic for procedural pain in preterm infants. It has been hypothesized that its analgesic effects are mediated by the release of endogenous opioid neurotransmitters such as beta-endorphin. OBJECTIVE: To…

Beta-endorphin concentrations in the peripheral blood mononuclear cells of migraine and tension-type headache patients

Levels of beta-endorphin in peripheral blood mononuclear cells have been studied as a new approach to investigating opioid tone in migraine and tension-type headache. Sixty-one patients with migraine without aura, 39 with migraine with aura and 23…

Beta-endorphin levels in peripheral blood mononuclear cells and long-term naltrexone treatment in autistic children

We assessed the clinical and biological effects of high-dose, long-term Naltrexone (NTX) treatment in 11 children (3-11 years), who had been diagnosed as autistic. The drug was given following an open design, for 12 weeks. Beta-Endorphin (beta-END)…

Beta-endorphin levels of children in acute stress

In this study aiming to clarify the relationships between beta-endorphin and glucose levels, beta-endorphin levels were determined in children in acute stress. The study was carried out on 32 critically ill children between 5 days and 12 years…

Beta-Endorphin Response to an Acute Pain Stimulus

The timing of the measurement of biological samples (e.g. biomarkers) is not always standardized. Biomarkers are the focus of many recent studies and treatments. The purpose of this study was to determine the timing of the release of beta-endorphin…

Beta-endorphin, Met-enkephalin and corresponding opioid receptors within synovium of patients with joint trauma, osteoarthritis and rheumatoid arthritis

OBJECTIVE: Intra-articularly applied opioid agonists or antagonists modulate pain after knee surgery and in chronic arthritis. Therefore, the expression of beta-endorphin (END), Met-enkephalin (ENK), and mu and delta opioid receptors (ORs) within…

Can we conquer pain?

Pain can be an adaptive sensation, an early warning to protect the body from tissue injury. By the introduction of hypersensitivity to normally innocuous stimuli, pain may also aid in repair after tissue damage. Pain can also be maladaptive,…

Tags: 2002, Afferent Pathways/drug effects/metabolism/physiopathology, Analgesics/pharmacology, Animal, Backlog, Biomarkers of Pain, Cell Surface/drug effects/metabolism, Central Nervous System/drug effects/metabolism/physiopathology, Drug Design, Human, Journal Article, Nature Neuroscience, Nociceptors/drug effects/metabolism, Pain/drug therapy/metabolism/physiopathology, Receptors, Scholz J, Signal Transduction/drug effects/physiology, Synaptic Transmission/drug effects/physiology, Woolf CJ

CB2 cannabinoid receptor activation produces antinociception by stimulating peripheral release of endogenous opioids

CB(2) cannabinoid receptor-selective agonists are promising candidates for the treatment of pain. CB(2) receptor activation inhibits acute, inflammatory, and neuropathic pain responses but does not cause central nervous system (CNS) effects,…

Cytokine and hormone profiles in mice subjected to handling combined with rectal temperature measurement stress and handling only stress

Stress is known to either up or down regulate immunity. In this study, mice were subjected to handling combined with rectal temperature measurement (RTM) stress or handling only stress. We investigated whether there were any significant differences…

Decreased levels of beta-endorphin in circulating mononuclear leukocytes from patients with acute myocardial infarction

Lymphocytes can be activated to produce and release opioid peptides. We investigated the levels of immunoreactive beta-endorphin in peripheral blood mononuclear cells from 11 patients with acute myocardial infarction. The concentrations of…

Decreased proopiomelanocortin mRNA in lymphocytes of chronic alcoholics after intravenous human corticotropin releasing factor injection

BACKGROUND: Alcohol abuse may involve an altered neuroendocrine response that mediates lymphocyte-derived proopiomelanocortin (POMC) production and inflammation. We investigated POMC messenger RNA (mRNA) expression in human lymphocytes ex vivo and…

Development of the paediatric pain profile: role of video analysis and saliva cortisol in validating a tool to assess pain in children with severe neurological disability

The Paediatric Pain Profile (PPP) is a 20-item behavior-rating scale designed to assess pain in children with severe to profound neurological impairment. Three raters independently used the PPP to rate behavior of 29 children (mean age 9.6, SD 5.8)…

Different mechanisms of intrinsic pain inhibition in early and late inflammation

Neuroimmune interactions control pain through activation of opioid receptors on sensory nerves by immune-derived opioid peptides. Here we evaluate mechanisms of intrinsic pain inhibition at different stages of Freund's adjuvant-induced inflammation…

Do Low Levels of Beta-Endorphin in the Cerebrospinal Fluid Indicate Defective Top-Down Inhibition in Patients with Chronic Neuropathic Pain? A Cross-Sectional, Comparative Study

OBJECTIVE: Pain medicine still lacks mechanism-specific biomarkers to guide diagnosis and treatment, and defective top-down modulation is an important factor in the pathophysiology of chronic pain conditions. Using modern analytical tools and…

Tags: 2014, Backlog, Backryd E, Biomarkers of Pain, Gerdle B, Ghafouri B, Journal Article, Larsson B, Pain Medicine

Endogenous opioid activity in clinical hemorrhagic shock

Plasma beta-endorphin, cortisol and total opioid-like activities were measured upon arrival at the hospital in ten patients with extensive trauma and in a state of shock and 11 patients with minor injury. Patients in a state of shock had…

Endogenous opioids in wound-site neutrophils of sternotomy patients

Foot-shock induced stress increases beta-endorphin levels in blood but not brain

1977

Tags: 1977, Backlog, Biomarkers of Pain, Journal Article, Nature, Rossier J

Gene expression and localization of opioid peptides in immune cells of inflamed tissue: functional role in antinociception

Our previous studies indicate that endogenous opioids (primarily beta-endorphin) released during stressful stimuli can interact with peripheral opioid receptors to inhibit nociception in inflamed tissue of rats. This study sought to localize opioid…

Hormonal response to surgical stress in schoolchildren

PURPOSE: To determine hormone concentrations (ACTH, cortisol, beta-endorphin) in children before and after surgery, to assess the correlation between any hormonal changes and to study the influence exercised on them by the severity of surgical stress…

Hormones and the stressed brain

The stress system orchestrates brain and body responses to the environment. Cortisol (in humans) or corticosterone (in rodents) are important mediators of the stress system. Their action-in concert-is crucial for individual differences in coping with…

Tags: 2004, Animals, Annals Of The New York Academy Of Sciences, Backlog, Biomarkers of Pain, Brain/pathology/physiopathology, De Kloet ER, Glucocorticoid/physiology, Hormones/physiology, Journal Article, Mineralocorticoid/physiology, Receptors, Stress/physiopathology

Human neutrophils as a source of nociceptin: a novel link between pain and inflammation

Nociceptin is a neuropeptide sharing sequence homology with classical opioid peptides but with a distinct pharmacological profile. Through activation of its receptor, NociR, nociceptin has been linked with several physiological functions in the…

Immune cell-derived beta-endorphin. Production, release, and control of inflammatory pain in rats

Localized inflammation of a rat's hindpaw elicits an accumulation of beta-endorphin-(END) containing immune cells. We investigated the production, release, and antinociceptive effects of lymphocyte-derived END in relation to cell trafficking. In…

Immunohistochemical localization of endomorphin-1 and endomorphin-2 in immune cells and spinal cord in a model of inflammatory pain

Recently, two novel highly selective mu-opioid receptor (MOR) agonists, endomorphin-1 and endomorphin-2, have been isolated from bovine as well as human brains and were proposed to be the endogenous ligand for MOR. Later, endomorphin-1 and…

Impact of setting of care on pain management in patients with cancer: a multicentre cross-sectional study

BACKGROUND: No study has so far addressed whether differences do exist in the management of cancer-related pain in patients admitted to oncology and non-oncology settings. PATIENTS AND METHODS: A multicentre cross-sectional study in 48 Italian…

Tags: 2010, Annals Of Oncology : Official Journal Of The European Society For Medical Oncology / Esmo, Backlog, Bandieri E, Belfiglio M, Biomarkers of Pain, Di Biagio K, Journal Article, Luppi M, Ripamonti CI, Romero M, Sichetti D, Tognoni G, Working Group for ECAD

Increased beta-endorphin levels and generalized decreased pain thresholds in patients with limited jaw opening and movement-evoked pain from the temporomandibular joint

Increased numbers of opioid expressing inflammatory cells do not affect intra-articular morphine analgesia

BACKGROUND: Both locally expressed beta-endorphin (END) and low doses of morphine relieve pain within inflamed knee joints. Here we examined whether enhanced inflammation and END expression within the synovial tissue of patients undergoing…

Influence of pain treatment by epidural fentanyl and bupivacaine on homing of opioid-containing leukocytes to surgical wounds

Endogenous opioids released from leukocytes extravasating into injured tissue can interact with peripheral opioid receptors to inhibit nociception. Animal studies have shown that the homing of opioid-producing leukocytes to the injured site is…

Tags: 2007, Adjuvants, Aged, Analgesia, Analgesics, Anesthesia, Anesthesia/immunology/pharmacology, Anesthetics, Backlog, beta-Endorphin/drug effects/immunology/metabolism, Biomarkers of Pain, Brain, Behavior, And Immunity, Bupivacaine/immunology/therapeutic use, Cell Movement/drug effects/immunology, Enkephalin, Epidural, Female, Fentanyl/immunology/therapeutic use, Heurich M, Humans, Journal Article, Kopf A, Lenzner M, Leukocytes/drug effects/immunology/metabolism, Local/immunology/therapeutic use, Longitudinal Studies, Male, Methionine/drug effects/immunology/metabolism, Middle Aged, Morciniec P, Mousa SA, Nociceptors/drug effects/immunology, Opioid/immunology/therapeutic use, Pain, Patient-Controlled, Pirinitramide/therapeutic use, Postganglionic/drug effects/immunology, Postoperative/immunology/prevention & control, Stein C, Subcutaneous Tissue/immunology, Sympathetic Fibers, Welte M, Wound Healing/drug effects/immunology

Inhibition of inflammatory pain by CRF at peripheral, spinal and supraspinal sites: involvement of areas coexpressing CRF receptors and opioid peptides

There is conflicting evidence on the antinociceptive effects of corticotropin-releasing factor (CRF) along the neuraxis of pain transmission and the responsible anatomical sites of CRF's action at the level of the brain, spinal cord and periphery. In…

Interleukin 1 beta and corticotropin-releasing factor inhibit pain by releasing opioids from immune cells in inflamed tissue

Local analgesic effects of exogenous opioid agonists are particularly prominent in painful inflammatory conditions and are mediated by opioid receptors on peripheral sensory nerves. The endogenous ligands of these receptors, opioid peptides, have…

Tags: 1994, Analysis of Variance, Animals, Antibodies/pharmacology, Backlog, beta-Endorphin/immunology/physiology, Biomarkers of Pain, Carter L, Corticotropin-Releasing Hormone/administration & dosage/pharmacology/therapeutic use, Cyclosporine/pharmacology, Dose-Response Relationship, Drug, Dynorphins/immunology/physiology, Endorphins/immunology/physiology/secretion, Enkephalin, Humans, Inflammation/immunology/physiopathology, Injections, Interleukin-1/administration & dosage/pharmacology/therapeutic use, Journal Article, Leucine/analogs & derivatives/pharmacology, Male, Methionine/immunology/physiology, Naloxone/pharmacology, Pain/immunology/physiopathology/prevention & control, Proceedings Of The National Academy Of Sciences Of The United States Of America, Rats, Recombinant Proteins/pharmacology/therapeutic use, Regression Analysis, Schafer M, Somatostatin/analogs & derivatives/pharmacology, Stein C, Wistar

Involvement of cytokines, chemokines and adhesion molecules in opioid analgesia

Tissue destruction is accompanied by an inflammatory reaction. The inflammatory reaction leads to activation of nociceptors and the sensation of pain. Several mediators are responsible for pain and hyperalgesia in inflammation including cytokines,…

Tags: 2005, Analgesia, Backlog, Biomarkers of Pain, Chemokines/physiology, Cytokines/physiology, European Journal Of Pain, Humans, Journal Article, Opioid Peptides/physiology, Opioid/physiology, Pain Threshold/physiology, Pain/physiopathology, Receptors, Rittner HL, Stein C

JAK-STAT1/3-induced expression of signal sequence-encoding proopiomelanocortin mRNA in lymphocytes reduces inflammatory pain in rats

Tags: 2012, Backlog, Biomarkers of Pain, Busch-Dienstfertig M, Journal Article, Labuz D, Molecular Pain, Stein C, Vogel NN, Wolfram T

Ketamine-fentanyl-midazolam infusion for the control of symptoms in terminal life care

In this report, we describe nine terminally ill patients with metastatic cancer who were treated with an intravenous infusion consisting of ketamine (2 mg/ml)/fentanyl (5 micrograms/ml)/midazolam (0.1 mg/ml) (K/F/M) to control pain after traditional…

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