Results 31 to 40 of about 2,342 (192)
Background Microglia-mediated neuroinflammation is associated with epilepsy. Switching microglial polarization from the pro-inflammatory M1 phenotype to the anti-inflammatory M2 phenotype represents a novel therapeutic strategy for mitigating ...
Lin Liu +5 more
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The Opioid Peptide Dynorphin a Induces Leukocyte Responses via Integrin Mac-1 (αβ, CD11b/CD18)
Background Opioid peptides, including dynorphin A, besides their analgesic action in the nervous system, exert a broad spectrum of effects on cells of the immune system, including leukocyte migration, degranulation and cytokine production. The mechanisms
Nataly P. Podolnikova +2 more
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Concomitant duplications of opioid peptide and receptor genes before the origin of jawed vertebrates. [PDF]
BACKGROUND: The opioid system is involved in reward and pain mechanisms and consists in mammals of four receptors and several peptides. The peptides are derived from four prepropeptide genes, PENK, PDYN, PNOC and POMC, encoding enkephalins, dynorphins ...
Görel Sundström +2 more
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Salvinorin A is a potent hallucinogen, isolated from the ethnomedical plant Salvia divinorum. Salvinorin A is a selective high efficacy kappa-opioid receptor (KOPr) agonist, and thus implicates the KOPr system and its endogenous agonist ligands (the ...
Eduardo eButelman, Mary Jeanne eKreek
doaj +1 more source
Interactions of the opioid and cannabinoid systems in reward: Insights from knockout studies
The opioid system consists of three receptors, mu, delta, and kappa, which are activated by endogenous opioid peptides (enkephalins, endorphins and dynorphins). The endogenous cannabinoid system comprises lipid neuromodulators (endocannabinoids), enzymes
Katia eBefort
doaj +1 more source
Resumen: Introducción: El prurito asociado a enfermedad renal crónica se define como la sensación desagradable que provoca la necesidad de rascarse en una parte del cuerpo o en todo en personas con enfermedad renal crónica, tras haberse descartado otras
Marian Goicoechea +12 more
doaj +1 more source
Virus-mediated shRNA knockdown of prodynorphin in the rat nucleus accumbens attenuates depression-like behavior and cocaine locomotor sensitization. [PDF]
Dynorphins, endogenous opioid peptides that arise from the precursor protein prodynorphin (Pdyn), are hypothesized to be involved in the regulation of mood states and the neuroplasticity associated with addiction.
Ami Cohen +7 more
doaj +1 more source
Introduction: Pruritus associated with chronic kidney disease is defined as the sensation of itching, in people with chronic kidney disease, in a one area or all over the body that causes the need to scratch, after having ruled out other dermatological ...
Marian Goicoechea +12 more
doaj +1 more source
Projection neurons in lamina III of the rat spinal cord are selectively innervated by local dynorphin-containing excitatory neurons [PDF]
Large projection neurons in lamina III of the rat spinal cord that express the neurokinin 1 receptor are densely innervated by peptidergic primary afferent nociceptors and more sparsely by low-threshold myelinated afferents. However, we know little about
Todd, A.J. +6 more
core +1 more source
Dynorphin and the pathophysiology of drug addiction [PDF]
Drug addiction is a chronic relapsing disease in which drug administration becomes the primary stimulus that drives behavior regardless of the adverse consequence that may ensue. As drug use becomes more compulsive, motivation for natural rewards that normally drive behavior decreases. The discontinuation of drug use is associated with somatic signs of
T S, Shippenberg, A, Zapata, V I, Chefer
openaire +2 more sources

