Antinociceptive effect from Davilla elliptica hydroalcoholic extract

Area of Science:

• Pharmacology
• Ethnobotany
• Natural Products

Background:

• Davilla elliptica (Dilleniaceae) is a plant with extensive traditional uses in Brazil.
• Scientific validation of its ethnopharmacological applications is crucial for understanding its therapeutic potential.

Purpose of the Study:

• To investigate the pharmacological basis for the traditional use of Davilla elliptica.
• To evaluate the antinociceptive (pain-reducing) effects of Davilla elliptica extract.

Main Methods:

• A hydroalcoholic extract from Davilla elliptica stems was administered orally to mice at doses ranging from 100 to 1000 mg/kg.
• The formalin test was used to assess inflammatory pain response.
• The involvement of opioidergic and myorelaxant pathways was investigated using naloxone pre-treatment and rota-rod/tail-flick tests, respectively.

Main Results:

• The hydroalcoholic extract of Davilla elliptica stems significantly reduced the inflammatory pain response in the formalin test.
• The antinociceptive effect was not reversed by naloxone, indicating it does not involve the opioidergic system.
• The extract did not exhibit myorelaxant activity, as evidenced by normal performance in rota-rod and tail-flick tests.

Conclusions:

• Davilla elliptica possesses significant antinociceptive properties, supporting its traditional medicinal use.
• The pain-relieving mechanism appears to involve the nitrergic pathway.
• These findings highlight Davilla elliptica as a promising source for developing new plant-derived pharmaceuticals.