Neuron-astrocyte interactions in spinal cord dorsal horn in neuropathic pain development and docosahexaenoic acid therapy. 2016

Igor V Manzhulo, and Olga S Ogurtsova, and Yuliya O Kipryushina, and Nikolay A Latyshev, and Sergey P Kasyanov, and Inessa V Dyuizen, and Anna A Tyrtyshnaia
A.V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 17 Palchevskii Str., 690041, Russia; School of Biomedicine, Far Eastern Federal University, Vladivostok, 8 Sukhanova Str., 690950, Russia. Electronic address: i-manzhulo@bk.ru.

The analgesic activity of docosahexaenoic acid (DHA, 22:6 n-3) was studied using a chronic constriction injury (CCI) rat model. Animals were subcutaneously injected with DHA emulsion at a dose of 4.5mg/kg (125mМ/kg) daily during 2weeks after surgery. We characterized the dynamics of GFAP-positive astrocyte, substance P (SP) and nNOS-positive neurons activity in the spinal cord dorsal horn (SCDH) superficial lamina. We found that DHA treatment decrease the intensity and duration of neurogenic pain syndrome, results in earlier stabilization of weight distribution, prevents the cold allodynia and dystrophic changings in denervated limb tissue. DHA treatment reduced the reactive astrocyte number, decrease SP-immunopositive fibers and nNOS-positive neurons number in the SCDH in neuropathic pain.

UI MeSH Term Description Entries
D008297 Male Males
D010751 Phosphopyruvate Hydratase A hydro-lyase that catalyzes the dehydration of 2-phosphoglycerate to form PHOSPHOENOLPYRUVATE. Several different isoforms of this enzyme exist, each with its own tissue specificity. Enolase,Neuron-Specific Enolase,2-Phospho-D-Glycerate Hydro-Lyase,2-Phospho-D-Glycerate Hydrolase,2-Phosphoglycerate Dehydratase,Enolase 2,Enolase 3,Muscle-Specific Enolase,Nervous System-Specific Enolase,Non-Neuronal Enolase,alpha-Enolase,beta-Enolase,gamma-Enolase,2 Phospho D Glycerate Hydro Lyase,2 Phospho D Glycerate Hydrolase,2 Phosphoglycerate Dehydratase,Dehydratase, 2-Phosphoglycerate,Enolase, Muscle-Specific,Enolase, Nervous System-Specific,Enolase, Neuron-Specific,Enolase, Non-Neuronal,Hydratase, Phosphopyruvate,Hydro-Lyase, 2-Phospho-D-Glycerate,Muscle Specific Enolase,Nervous System Specific Enolase,Neuron Specific Enolase,Non Neuronal Enolase,System-Specific Enolase, Nervous,alpha Enolase,beta Enolase,gamma Enolase
D004008 Diclofenac A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt. Diclophenac,Dichlofenal,Diclofenac Potassium,Diclofenac Sodium,Diclonate P,Dicrofenac,Feloran,GP-45,840,Novapirina,Orthofen,Orthophen,Ortofen,SR-38,Sodium Diclofenac,Voltaren,Voltarol,Diclofenac, Sodium,GP 45,840,GP45,840,SR 38,SR38
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004281 Docosahexaenoic Acids C22-unsaturated fatty acids found predominantly in FISH OILS. Docosahexaenoate,Docosahexaenoic Acid,Docosahexenoic Acids,Docosahexaenoic Acid (All-Z Isomer),Docosahexaenoic Acid Dimer (All-Z Isomer),Docosahexaenoic Acid, 3,6,9,12,15,18-Isomer,Docosahexaenoic Acid, 4,7,10,13,16,19-(All-Z-Isomer),Docosahexaenoic Acid, 4,7,10,13,16,19-(All-Z-Isomer), Cerium Salt,Docosahexaenoic Acid, 4,7,10,13,16,19-(All-Z-Isomer), Cesium Salt,Docosahexaenoic Acid, 4,7,10,13,16,19-(All-Z-Isomer), Potassium Salt,Docosahexaenoic Acid, 4,7,10,13,16,19-(Z,Z,Z,Z,Z,E-Isomer),Docosahexaenoic Acid, 4,7,10,13,16,19-Isomer,Docosahexaenoic Acid, 4,7,10,13,16,19-Isomer, Sodium Salt,Docosahexaenoic Acid, Sodium Salt,Acid, Docosahexaenoic,Acids, Docosahexaenoic,Acids, Docosahexenoic
D005904 Glial Fibrillary Acidic Protein An intermediate filament protein found only in glial cells or cells of glial origin. MW 51,000. Glial Intermediate Filament Protein,Astroprotein,GFA-Protein,Glial Fibrillary Acid Protein,GFA Protein
D006930 Hyperalgesia An increased sensation of pain or discomfort produced by minimally noxious stimuli due to damage to soft tissue containing NOCICEPTORS or injury to a peripheral nerve. Hyperalgesia, Tactile,Hyperalgesia, Thermal,Hyperalgia,Hyperalgia, Mechanical,Hyperalgia, Primary,Hyperalgia, Secondary,Allodynia,Allodynia, Mechanical,Allodynia, Tactile,Allodynia, Thermal,Hyperalgesia, Mechanical,Hyperalgesia, Primary,Hyperalgesia, Secondary,Hyperalgesic Sensations,Mechanical Allodynia,Mechanical Hyperalgesia,Tactile Allodynia,Thermal Allodynia,Allodynias,Hyperalgesias,Hyperalgesias, Thermal,Hyperalgesic Sensation,Mechanical Hyperalgia,Mechanical Hyperalgias,Primary Hyperalgia,Primary Hyperalgias,Secondary Hyperalgia,Secondary Hyperalgias,Sensation, Hyperalgesic,Sensations, Hyperalgesic,Thermal Hyperalgesia
D000700 Analgesics Compounds capable of relieving pain without the loss of CONSCIOUSNESS. Analgesic,Anodynes,Antinociceptive Agents,Analgesic Agents,Analgesic Drugs,Agents, Analgesic,Agents, Antinociceptive,Drugs, Analgesic
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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