Memory-enhancing activities of the aqueous extract of Albizia adianthifolia leaves in the 6-hydroxydopamine-lesion rodent model of Parkinson’s disease

BMC Complementary and Alternative Medicine

Lucian Hritcu⁶  Théophile Dimo⁴  Monica Hancianu⁵  Oana Cioanca⁵  Zenovia Olteanu⁶  Nolé Tsabang³  Harquin Simplice Foyet¹  Alain Bertrand Dongmo²  Galba Jean Beppe¹ 

[1] Department of Agriculture, Cattle farming and Derived products, High Institute of the Sahel, University of Maroua, Maroua, Cameroon;Department of Animal Biology and Physiology, University of Douala, Douala, Cameroon;Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plant Studies, Yaoundé, Cameroon;Laboratory of Animal Physiology, University of Yaoundé I, Yaounde, Cameroon;Faculty of Pharmacy, University of Medicine and Pharmacy “Gr. T. Popa”, Iasi, Romania;Department of Biology, Alexandru Ioan Cuza University, Iasi, Romania

关键词: Parkinson disease;    Memory;    6-hydroxydopamine-lesion rat;    Antioxidant activity;    Albizia adianthifolia extract;   

Others  :  1220181
DOI  :  10.1186/1472-6882-14-142

 received in 2013-10-07, accepted in 2014-04-25,  发布年份 2014

【 摘 要 】

Background

Albizia adianthifolia (Schumach.) W. Wright (Fabaceae) is a traditional herb largely used in the African traditional medicine as analgesic, purgative, anti-inflammatory, antioxidant, antimicrobial and memory-enhancer drug. This study was undertaken in order to evaluate the possible cognitive-enhancing and antioxidative effects of the aqueous extract of A. adianthifolia leaves in the 6-hydroxydopamine-lesion rodent model of Parkinson’s disease.

Methods

The effect of the aqueous extract of A. adianthifolia leaves (150 and 300 mg/kg, orally, daily, for 21 days) on spatial memory performance was assessed using Y-maze and radial arm-maze tasks, as animal models of spatial memory. Pergolide - induced rotational behavior test was employed to validate unilateral damage to dopamine nigrostriatal neurons. Also, in vitro antioxidant activity was assessed through the estimation of total flavonoid and total phenolic contents along with determination of free radical scavenging activity. Statistical analyses were performed using two-way analysis of variance (ANOVA). Significant differences were determined by Tukey’s post hoc test. F values for which p < 0.05 were regarded as statistically significant. Pearson’s correlation coefficient and regression analysis were used in order to evaluate the association between behavioral parameters and net rotations in rotational behavior test.

Results

The 6-OHDA-treated rats exhibited the following: decrease of spontaneous alternations percentage within Y-maze task and increase of working memory errors and reference memory errors within radial arm maze task. Administration of the aqueous extract of A. adianthifolia leaves significantly improved these parameters, suggesting positive effects on spatial memory formation. Also, the aqueous extract of A. adianthifolia leaves showed potent in vitro antioxidant activity. Furthermore, in vivo evaluation, the aqueous extract of A. adianthifolia leaves attenuated the contralateral rotational asymmetry observed by pergolide challenge in 6-OHDA-treated rats.

Conclusions

Taken together, our results suggest that the aqueous extract of A. adianthifolia leaves possesses antioxidant potential and might provide an opportunity for management neurological abnormalities in Parkinson’s disease conditions.

【 授权许可】

   
2014 Beppe et al.; licensee BioMed Central Ltd.

【 图 表 】

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