behavior/neurological
N |
• behavioral responses to noxious heat and cold stimuli are normal
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• diphtheria-treated mice exhibit double the threshold to paw withdrawal in response to calibrated von Frey filaments unlike similarly treated wild-type mice
• elevated response threshold following diphtheria treatment persists for at least 31 days
• diphtheria-treated mice exposed to capsaicin do not exhibit any further decrease in mechanosensitivity
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• diphtheria-treated mice exposed to complete Freund's adjuvant exhibit higher mechanical nociception threshold compared to in similarly treated wild-type mice
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nervous system
• treatment with diphtheria toxin results in a greater than 98% ablation of Mrgprd+ cell bodies in the dorsal root ganglion and in central and peripheral fibers
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