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Attenuation of fear‐conditioned analgesia in rats by monoacylglycerol lipase inhibition in the anterior cingulate cortex: Potential role for CB2 receptors
(The British Pharmacological Society, 2020-01-22)
Improved understanding of brain mechanisms regulating endogenous analgesia is important from a fundamental physiological perspective and for identification of novel therapeutic strategies for pain. The endocannabinoid ...
Antinociceptive effects of the GPR55 Antagonist CID16020046 injected into the rat anterior cingulate cortex
(Elsevier, 2020-07-13)
The G-protein coupled receptor, GPR55, modulates nociceptive processing. Given the expression of GPR55 in the anterior cingulate cortex (ACC), a key brain region involved in the cognitive and affective dimensions of pain, ...
Differential role of anterior cingulate cortical glutamatergic neurons in pain-related aversion learning and nociceptive behaviors in male and female rats
(Frontiers Media, 2020-08-11)
Pain is comprised of both sensory and affective components. The anterior cingulate cortex (ACC) is a key brain region involved in the emotional processing of pain. Specifically, glutamatergic transmission within the ACC ...
Pharmacological blockade of PPAR isoforms increases conditioned fear responding in the presence of nociceptive tone
(MDPI, 2020-02-24)
Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors with three isoforms (PPAR¿, PPARß/¿, PPAR¿) and can regulate pain, anxiety, and cognition. However, their role in conditioned fear and pain-fear ...
Hyporesponsivity to mu-opioid receptor agonism in the Wistar-Kyoto rat model of altered nociceptive responding associated with negative affective state.
(Lippincott, Williams & Wilkins, 2020-08-17)
Chronic pain is often comorbid with anxiety and depression, altering the level of perceived pain, which negatively affects therapeutic outcomes. The role of the endogenous mu-opioid receptor (MOP) system in pain-negative ...
Kappa opioid receptor-mediated modulation of social responding in adolescent rats and in rats prenatally exposed to valproic acid
(Elsevier, 2020-08-05)
The kappa opioid receptor (KOP) system modulates social play responding, however a paucity of studies have examined effects on social motivation and cognition in the absence of play. Prenatal exposure to the anti epileptic ...
Prenatal exposure to valproic acid reduces social responses and alters mRNA levels of opioid receptor and pre-pro-peptide in discrete brain regions of adolescent and adult male rats
(Elsevier, 2020-01-21)
Altered social behaviours are a hallmark of several psychiatric and developmental disorders. Clinical and preclinical data have demonstrated that prenatal exposure to valproic acid (VPA), an anti-epileptic and mood stabiliser, ...
Pharmacological blockade of PPARα exacerbates inflammatory pain-related impairment of spatial memory in rats
(MDPI, 2021-05-27)
Peroxisome proliferator-activated receptors (PPARs) are ligand-dependent transcription factors that exist in three isoforms: PPAR¿, PPARß/¿ and PPAR¿. Studies suggest that the PPAR signalling system may modulate pain, ...