Article Publish Status: FREE
Abstract Title:

Lavender (Mill.) Essential Oil Alleviates Neuropathic Pain in Mice With Spared Nerve Injury.

Abstract Source:

Front Pharmacol. 2019 ;10:472. Epub 2019 May 9. PMID: 31143116

Abstract Author(s):

Maria Domenica Sanna, Francisco Les, Victor Lopez, Nicoletta Galeotti

Article Affiliation:

Maria Domenica Sanna


Low treatment efficacy represents an important unmet need in neuropathic pain patients and there is an urgent need to develop a more effective pharmacotherapy. An increasing number of patients choose complementary medicine to relieve pain. Lavender essential oil (LEO) is approved by the European Medicines Agency as herbal medicine to relieve anxiety and stress. However, the capability of LEO to relieve other nervous system disorders such as neuropathic pain has never been established. Our work aimed to evaluate the antineuropathic properties of lavender on a spared nerve injury (SNI) model of neuropathic pain in mice. An acute oral administration of LEO (100 mg/kg) alleviated SNI-induced mechanical allodynia, evaluated in the von Frey test, with an intensity comparable to the reference drug pregabalin. Investigations into the mechanism of action showed that LEO markedly decreased the phosphorylation of ERK1, ERK2, and JNK1, and decreased the levels ofiNOS in the spinal cord; involvement of the endocannabinoid system was also detected usinginhibition of the FAAH and MALG enzymes as well asexperiments with the CB1 antagonist. Conversely, no effect on P38 phosphorylation and NF-kB activation was detected. These antihyperalgesic effects appeared at the same dose able to induce antidepressant-like, anxiolytic-like, and anorexic effects. In addition, gavage with LEO did not significantly alter animals' gross behavior, motor coordination, or locomotor activity, nor impaired memory functions. Oral administration of LEO could represent a therapeutic approach in the management of neuropathic pain states.

Study Type : Animal Study

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