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Antinociceptive effect of N-acetyl glucosamine in a rat model of neuropathic pain

Acta neuropsychiatrica, 2022-10, Vol.34 (5), p.1-268 [Peer Reviewed Journal]

The Author(s), 2022. Published by Cambridge University Press on behalf of Scandinavian College of Neuropsychopharmacology ;ISSN: 0924-2708 ;EISSN: 1601-5215 ;DOI: 10.1017/neu.2022.3 ;PMID: 35109948

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  • Title:
    Antinociceptive effect of N-acetyl glucosamine in a rat model of neuropathic pain
  • Author: Mohebbi, Ehsan ; Molavi, Mehdi ; Amin, Mohamadreza ; Amin, Bahareh ; Sahebkar, Mohammad
  • Subjects: Animals ; Cartilage ; Chronic pain ; Drug withdrawal ; Hyperalgesia ; Medical research ; Nitric oxide ; Oxidative stress ; Proteins ; Spinal cord ; Tumor necrosis factor-TNF
  • Is Part Of: Acta neuropsychiatrica, 2022-10, Vol.34 (5), p.1-268
  • Description: This study was aimed at evaluating the efficacy of glucosamine and potential mechanisms of actions in a neuropathic pain model in rats. Glucosamine (500, 1000 and 2000 mg/kg) was administered via gavage route, 1 day before the chronic constriction injury (CCI) of sciatic nerve and daily for 14 days (prophylactic regimen), or from days 5 to 14 post-injury (therapeutic regimen), as the indicators of neuropathic pain, mechanical allodynia, cold allodynia and thermal hyperalgesia were assessed on days 0, 3, 5, 7, 10 and 14 after ligation. Inducible nitric oxide synthase (iNOS) and tumour necrosis factor alpha (TNF-α) gene expressions were measured by real-time polymerase chain reaction. TNF-α protein content was measured using the enzyme-linked immunosorbent assay method. Three days after nerve injury, the threshold of pain was declined among animals subjected to neuropathic pain. Mechanical and cold allodynia, as well as thermal hyperalgesia were attenuated by glucosamine (500, 1000, 2000 mg/kg) in the prophylactic regimen. However, existing pain was not decreased by this drug. Increased mRNA expression of iNOS and TNF-α was significantly reduced in the spinal cord of CCI animals by glucosamine (500, 1000, 2000 mg/kg) in the prophylactic regimen. The overall expression of spinal TNF-α was increased by CCI, but this increase was reduced in animals receiving glucosamine prophylactic treatment. Findings suggest that glucosamine as a safe supplement may be a useful candidate in preventing neuropathic pain following nerve injury. Antioxidant and anti-inflammatory effects may be at least in part responsible for the antinociceptive effects of this drug.
  • Publisher: England: Cambridge University Press
  • Language: English;Dutch
  • Identifier: ISSN: 0924-2708
    EISSN: 1601-5215
    DOI: 10.1017/neu.2022.3
    PMID: 35109948
  • Source: ProQuest One Psychology
    AUTh Library subscriptions: ProQuest Central
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