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Canadian researchers shed light on molecular dynamics of chronic pain

Canadian researchers shed light on molecular dynamics of chronic pain

Chronic pain affects hundreds of millions of people worldwide and is a major cause of disability, causing more disability than cancer and heart disease. Canadian researchers, including Michael Salter at SickKids are shedding light on the molecular dynamics of chronic pain. They have uncovered a critical role for a class of cells present in the brain and spinal cord, called microglia, in pain. [More]
Mesenchymal stem cell transplantation reduces opioid tolerance, opioid-induced pain

Mesenchymal stem cell transplantation reduces opioid tolerance, opioid-induced pain

Mesenchymal stem cell (MSC) transplantation reduced opioid tolerance and opioid-induced hyperalgesia caused by daily morphine injections in rats, according to new research. [More]
International study shows potential new therapy to treat patients with neuropathic pain

International study shows potential new therapy to treat patients with neuropathic pain

An international study led by scientists at McGill University reports, for the first time, that drugs that selectively target the melatonin MT2 receptor represent a novel class of analgesic drugs that could be used to treat patients with neuropathic pain. [More]
Adding common epilepsy drug to morphine can result in better pain control, say IU researchers

Adding common epilepsy drug to morphine can result in better pain control, say IU researchers

Adding a common epilepsy drug to a morphine regimen can result in better pain control with fewer side effects. Moreover, the combination can reduce the dosage of the opioid needed to be effective, according to a team of pain researchers at Indiana University. [More]
FDA approves Targiniq ER to treat severe pain

FDA approves Targiniq ER to treat severe pain

Today, the U.S. Food and Drug Administration approved Targiniq ER (oxycodone hydrochloride and naloxone hydrochloride extended-release tablets), an extended-release/long-acting (ER/LA) opioid analgesic to treat pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate. [More]

2014 PAINWeekEnd Regional Conference to highlight health crises of inadequate pain management

There are 116 million people in pain. There are 4,000 pain specialists. That's 29,000 patients per pain specialist. There are simply not enough pain specialists to go around. [More]
Opioid receptor-triggered spinal mTORC1 activation contributes to morphine tolerance, hyperalgesia

Opioid receptor-triggered spinal mTORC1 activation contributes to morphine tolerance, hyperalgesia

Currently, opioids are the standard treatment for chronic pain. Patients on opioids for long periods of time become desensitized to these drugs or become paradoxically hypersensitive to pain (hyperalgesia); however, the adaptive mechanisms are not well understood. [More]
Transient receptor potential channel A1 causes calcitonin gene-related peptide release in neurons

Transient receptor potential channel A1 causes calcitonin gene-related peptide release in neurons

Transient receptor potential channel A1 is one of the important transducers of noxious stimuli in the primary afferents, which may contribute to generation of neurogenic inflammation and hyperalgesia. [More]
Molecular mechanisms underlying effects of acupuncture on neuropathic pain

Molecular mechanisms underlying effects of acupuncture on neuropathic pain

Peripheral or central nerve injury often leads to neuropathic pain, a chronic condition that can manifest behaviorally as spontaneous pain, hyperalgesia and allodynia, and which also results in neurological dysfunction. [More]
Disruption of brain signals contributes to increased pain sensitivity in fibromyalgia patients

Disruption of brain signals contributes to increased pain sensitivity in fibromyalgia patients

New research indicates that a disruption of brain signals for reward and punishment contributes to increased pain sensitivity, known as hyperalgesia, in fibromyalgia patients. Results published in Arthritis & Rheumatism, a journal of the American College of Rheumatology, suggest that this altered brain processing might contribute to widespread pain and lack of response to opioid therapy in patients with fibromyalgia. [More]

AAPM commends FDA’s move to introduce labeling changes on ER/LA opioids

The physicians of the American Academy of Pain Medicine (AAPM) hailed long-awaited labeling changes and other steps taken by the U.S. Food and Drug Administration (FDA) last week to enhance safety in the prescribing of extended-release and long-acting (ER/LA) opioids. [More]
Safety labeling changes announced for extended-release and long-acting opioid analgesics

Safety labeling changes announced for extended-release and long-acting opioid analgesics

The U.S. Food and Drug Administration today announced class-wide safety labeling changes and new postmarket study requirements for all extended-release and long-acting opioid analgesics intended to treat pain. [More]
Dexmedetomidine may be an effective treatment option for opioid-induced hyperalgesia

Dexmedetomidine may be an effective treatment option for opioid-induced hyperalgesia

Surgical patients who demonstrated heightened pain sensitivity, or hyperalgesia, induced by high doses of a synthetic opioid had their symptoms alleviated by co-treatment with dexmedetomidine, according to new research. Study investigators, who presented their results today at the 29th Annual Meeting of the American Academy of Pain Medicine, concluded that dexmedetomidine may be a new and effective treatment option for opioid-induced hyperalgesia (OIH). [More]
Study shows genetic variant reduces pain severity associated with sexual assault

Study shows genetic variant reduces pain severity associated with sexual assault

One in five U.S. women are sexually assaulted in their lifetimes and more than half experience severe pain during the week following an attack. [More]
Researchers discover new pathway to reduce paradoxical pain

Researchers discover new pathway to reduce paradoxical pain

For individuals with agonizing pain, it is a cruel blow when the gold-standard medication actually causes more pain. Adults and children whose pain gets worse when treated with morphine may be closer to a solution, based on research published in the January 6 on-line edition of Nature Neuroscience. [More]
Study evaluates distribution and severity of pain in sexual assault victims

Study evaluates distribution and severity of pain in sexual assault victims

A majority of sexual assault victims experience severe pain in the early aftermath of the crime but less than a third of these victims receive pain medications, according to research in The Journal of Pain, the peer review publication of the American Pain Society. [More]
Potassium-channel autoimmunity linked to chronic pain

Potassium-channel autoimmunity linked to chronic pain

A substantial proportion of patients with voltage-gated potassium channel-complex autoimmunity experience chronic idiopathic pain, although the specific antigenic complex associated with pain remains to be determined, conclude US scientists. [More]
Chronic nerve pain: an interview with Professor Sally Lawson

Chronic nerve pain: an interview with Professor Sally Lawson

Chronic nerve pain results from pathological changes within a nerve that appear to be self-sustaining and thus the pain continues for a long time. [More]
Opiate addiction disorders associated with opioid-induced hyperalgesia

Opiate addiction disorders associated with opioid-induced hyperalgesia

Patients with addictive disorders who take methadone or other opioid medications for pain will experience heightened sensitivity to pain, known as hyperalgesia, and new research published in The Journal of Pain shows that the condition does not improve over the course of treatment. [More]
Study clarifies ginkgo's pain-reducing effects

Study clarifies ginkgo's pain-reducing effects

Experiments in rats show that a standardized ginkgo extract—injected either into the spinal canal or directly into the injured area—effectively reduces inflammation and some types of pain, according to a report in the May issue of Anesthesia & Analgesia, official journal of the International Anesthesia Research Society. [More]
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