Eplingiella fruticosa leaf essential oil complexed with β-cyclodextrin produces a superior neuroprotective and behavioral profile in a mice model of Parkinson's disease

• Published in: Food and chemical toxicology Vol. 124; pp. 17 - 29
• Main Authors: Beserra-Filho, Jose I.A., de Macêdo, Amanda M., Leão, Anderson H.F.F., Bispo, Jose Marcos M., Santos, José R., de Oliveira-Melo, Allan John, Menezes, Paula Dos Passos, Duarte, Marcelo C., de Souza Araújo, Adriano A., Silva, Regina H., Quintans-Júnior, Lucindo J., Ribeiro, Alessandra M.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.02.2019
• Subjects: animal models; antioxidant activity; beta-caryophyllene; beta-cyclodextrin; cineole; Eplingiella; Essential oil; essential oils; herbs; immunohistochemistry; leaves; lipid peroxidation; lipid peroxides; males; medicinal plants; memory disorders; mice; Natural products; Neuroprotection; neuroprotective effect; Oxidative stress; Parkinson disease; Parkinsonism; reserpine; therapeutics; tranquilizers; tyrosine 3-monooxygenase; β-cyclodextrin; Parkinsonism; Neuroprotection; Oxidative stress; Essential oil; Natural products; β-cyclodextrin
• ISSN: 0278-6915; 1873-6351; 1873-6351
• DOI: 10.1016/j.fct.2018.11.056

Evidence indicates that oxidative stress has an important role in the onset and progression of Parkinson's disease (PD). Antioxidant agents from natural products have shown neuroprotective effects in animal models of PD. Eplingiella fruticosa is an aromatic and medicinal plant of the Lamiaceae family that include culinary herbs. The essential oil (EPL) has anti-inflammatory and antioxidant activities. Cyclodextrins are used to enhances pharmacological profile of essential oil. We obtained the EPL from leaves and complexed with β-cyclodextrin (EPL-βCD). Phytochemical analysis showed as main constituents: β-caryophyllene, bicyclogermacrene and 1,8-cineole. We evaluated the effects of EPL and EPL-βCD (5 mg/kg, p.o. for 40 days) on male mice submitted to the progressive reserpine PD model. Behavioral evaluations, lipid peroxidation quantification and immunohistochemistry for tyrosine hydroxylase were conducted. EPL delayed the onset of catalepsy and decreased membrane lipid peroxides levels in the striatum. EPL-βCD also delayed the onset of catalepsy, reduced the frequency of oral diskynesia, restored memory deficit, produced anxiolytic activity and protected against dopaminergic depletion in the striatum and SNpc. These findings showed that EPL has a potential neuroprotective effect in a progressive PD animal model. Further, EPL-βCD enhanced this protective effects, suggesting a novel therapeutic approach to ameliorate the symptoms of PD. •The essential oil of Eplingiella fruticosa is rich in terpenes.•Repeated treatment with reserpine causes motor and non-motor deficits.•Complexation with β-cyclodextrin improves the effects of Eplingiella fruticosa essential oil.