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Analysis of the dose-response of N-acetylcysteine in the prevention of sensory neuronal loss after peripheral nerve injury
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy. Blond McIndoe Research Laboratories, University of Manchester, Manchester, UK.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Hand Surgery.
2007 (English)In: How to Improve the Results of Peripheral Nerve Surgery / [ed] H. Millesi, R. Schmidhammer, Springer, 2007, Vol. 100, 29-31 p.Chapter in book (Other academic)
Abstract [en]

BACKGROUND: N-Acetylcysteine (NAC) is a safe pharmaceutical agent known to protect cells from oxidative damage. Following peripheral nerve transection, NAC has been found to eliminate sensory neuronal loss. This study examines the dose-response relationship of NAC in preventing neuronal death. METHODS AND FINDINGS: The rat sciatic nerve transection model was used, and stereological quantification of sensory neuron survival carried out at two weeks post-axotomy. NAC was administered systemically as an intraperitoneal injection to five groups of rats at a range of doses (1-300 mg/kg/day). Significant neuronal loss was observed in the 1 mg/kg/day dosage group (18.5% loss, p = 0.067 vs. sham treatment). A degree of neuroprotection occurred with 10 mg/kg/day (9.1% loss, p < 0.005 vs. control), whilst there was no significant loss with either 150 or 300 mg/kg/day. CONCLUSIONS: The prevention of sensory neuronal loss with NAC is dose dependent and effective over a wide therapeutic range. This analysis confirms the efficacy of systemic administration and provides a dose framework with which NAC has clinical potential to improve outcome after peripheral nerve trauma.

Place, publisher, year, edition, pages
Springer, 2007. Vol. 100, 29-31 p.
Series
Acta Neurochirurgica Supplementum, ISSN 0065-1419 ; 100
Keyword [en]
Acetylcysteine/*administration & dosage/pharmacology, Animals, Cell Count, Dose-Response Relationship; Drug, Ganglia; Spinal/drug effects/pathology, Neurons; Afferent/*drug effects/*pathology, Rats, Sciatic Nerve/drug effects/*injuries/*pathology, Wounds and Injuries/pathology
National Category
Neurology
Identifiers
URN: urn:nbn:se:umu:diva-8122DOI: 10.1007/978-3-211-72958-8_6ISI: 000271635700006PubMedID: 17985540ISBN: 978-3-211-72955-7 (print)ISBN: 978-3-211-72958-8 (print)OAI: oai:DiVA.org:umu-8122DiVA: diva2:147793
Available from: 2008-01-15 Created: 2008-01-15 Last updated: 2013-07-12Bibliographically approved

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