Activity, Motor Control & Coordination
Pain - Thermal Allodynia / Hyperalgesia
Pain - Spontaneous Pain - Postural Deficit
Pain - Mechanical Allodynia / Hyperalgesia
Anxiety & Depression Disorder
Learning/Memory - Attention - Addiction
Physiology & Respiratory Research
Metabolism - Food & Drink Intake
Pain
Central Nervous System (CNS)
Neurodegeneration
Sensory system
Motor control
Mood Disorders
Other disorders
Muscular system
Joints
Metabolism
Cross-disciplinary subjects
Preclinical studies and opioids: role in crisis management in the United States Authors
B. Ling, N. Authier, D. Balayssac, A. Eschalier, F. Coudore.
Lab
Université Clermont1, Faculté de Pharmacie, Laboratoire de Toxicologie, Clermont-Ferrand, France.
Journal
Pain
Abstract
We describe an animal model of nociceptive sensory neuropathy induced by repeat intravenous administration of oxaliplatin in which treated animals partly reproduce the characteristic pain symptoms in oxaliplatin-treated patients. We tested the ability of 1, 2 and 4 mg/kg oxaliplatin doses injected twice-weekly for four-and-a-half consecutive weeks to induce a nociceptive peripheral neuropathy in male Sprague–Dawley rats. The behavioral assessment revealed cold allodynia (10 °C) and hyperalgesia (4 °C) symptoms associated with a mechanical allodynia. The rats maintained a good general clinical status without motor dysfunction. The 2 mg/kg oxaliplatin dose and the tail-immersion test in cold water (10 °C) were selected to compare pharmacological sensitivity between single administered drugs as morphine, lidocaine, carbamazepine, gabapentin and repeated administration of drugs as clomipramine, venlafaxine, calcium and magnesium solutions. Magnesium solution (90 mg/kg) and venlafaxine (7.5 mg/kg) administration induced an antinociceptive effect whereas gabapentin (300 mg/kg), clomipramine (2.5 mg/kg) and lidocaine (3 and 6 mg/kg) only induced an antiallodynic effect.
BIOSEB Instruments Used:
Grip strength test (BIO-GS3)
