Study of Painful Peripheral Neuropathy from Oxaliplatin in Mice
Author Information
Author(s): Cynthia L Renn, Valentina A Carozzi, Peter Rhee, Danisha Gallop, Susan G Dorsey, Guido Cavaletti
Primary Institution: University of Maryland, Baltimore, MD, USA
Hypothesis
Chronic oxaliplatin treatment in mice will induce painful peripheral neuropathy characterized by specific neurophysiological and behavioral changes.
Conclusion
Chronic treatment with oxaliplatin leads to neurotoxic changes in mice, making this model suitable for further studies on oxaliplatin-related pain and neurotoxicity.
Supporting Evidence
- Oxaliplatin treatment caused significant decreases in nerve conduction velocities.
- Mice exhibited mechanical allodynia and cold hyperalgesia after treatment.
- Neuronal atrophy and multinucleolated DRG neurons were observed.
- Wide dynamic range neurons in the spinal dorsal horn showed increased activity.
- The model can be used for preclinical discovery of neuroprotective compounds.
Takeaway
Mice treated with oxaliplatin experienced pain and nerve damage, similar to what some cancer patients feel after chemotherapy.
Methodology
Mice were treated with oxaliplatin twice weekly for four weeks, and various assessments were made including nerve conduction velocities and behavioral responses to pain.
Potential Biases
Potential bias in the interpretation of behavioral responses and physiological measurements.
Limitations
The study was conducted in a mouse model, which may not fully replicate human responses to oxaliplatin.
Participant Demographics
Young adult female BALB/c mice.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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