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Journal of Ethnopharmacology 2016-Dec

Protective effect of lavender oil on scopolamine induced cognitive deficits in mice and H2O2 induced cytotoxicity in PC12 cells.

Aðeins skráðir notendur geta þýtt greinar
Skráðu þig / skráðu þig
Krækjan er vistuð á klemmuspjaldið
Pan Xu
Kezhu Wang
Cong Lu
Liming Dong
Li Gao
Ming Yan
Silafu Aibai
Xinmin Liu

Lykilorð

Útdráttur

BACKGROUND

Lavender essential oil (LO), an aromatic liquid extracted from Lavandula angustifolia Mill., has been traditionally used in the treatments of many nervous system diseases, and recently LO also reported to be effective for the Alzheimer's disease (AD).

OBJECTIVE

The improvement effect of lavender oil (LO) on the scopolamine-induced cognitive deficits in mice and H2O2 induced cytotoxicity in PC12 cells have been evaluated. The relevant mechanism was also researched from the perspective of antioxidant effect and cholinergic system modulation.

METHODS

Cognitive deficits were induced in C57BL/6J mice treated with scopolamine (1mg/kg, i.p.) and were assessed by Morris water maze (MWM) and step-through passive avoidance tests. Then their hippocampus were removed for biochemical assays (acetylcholinesterase (AChE), superoxide dismutase (SOD), glutathione peroxidase (GPX) and malondialdehyde (MDA)). In vitro, the cytotoxicity were induced by 4h exposure to H2O2 in PC12 and evaluated by cell viability (MTT), lactate dehydrogenase (LDH) level, nitric oxide (NO) release, reactive oxygen species (ROS) production and mitochondrial membrane potential (MMP).

RESULTS

The results demonstrated that LO (100mg/kg) could improve the cognitive performance of scopolamine induced mice in behavioral tests. Meanwhile, it significantly decreased the AChE activity, MDA level, and increase SOD and GPX activities of the model. Moreover, LO (12μg/mL) protected PC12 cells from H2O2 induced cytotoxicity by reducing LDH, NO release, intracellular ROS accumulation and MMP loss.

CONCLUSIONS

It was suggested that LO could show neuroprotective effect in AD model in vivo (scopolamine-treated mice) and in vitro (H2O2 induced PC12 cells) via modulating oxidative stress and AChE activity.

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