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Journal of the American Academy of Dermatology • 1992 | View Paper
“The SP released from cultured DRG neurons of Na(v)1.8 knock-out mice exposed to either capsaicin or KCl was significantly lower than that from wild-type (C57BL/6) mice based on a radioimmunoassay.”
“Conclusion: Elevated salivary SP concentrations stimulated by capsaicin greatly improve the safety and efficacy of swallowing, and shorten the swallow response in older patients with OD.”
“Salivary SP levels were significantly increased after capsaicin administration compared with placebo in the effective group.”
“In our case report, we propose that the inhibition of substance P release induced by capsaicin plays a role in the disappearance of acne.”
“This activation leads to cellular degranulation by neuropeptides such as substance P. Repeated application of capsaicin inhibits release of substance P , which explains the analgesic effect.”