**Author details**

Paulin Mutwale Kapepula1 \*, Désiré Tshala-Katumbay2,3, Dieudonné Mumba<sup>4</sup> , Michel Frédérich5 , Théophile Mbemba<sup>6</sup> and Nadege Kabamba Ngombe<sup>1</sup>

\*Address all correspondence to: garaphmutwal@yahoo.fr

1 Centre d'Etudes des Substances Naturelles d'Origine Végétale (CESNOV), Faculty of Pharmaceutical Sciences, University of Kinshasa, Democratic Republic of Congo

2 Department of Neurology, Faculty of Medicine, University of Kinshasa, Democratic Republic of Congo

3 Department of Neurology, Oregon Health and Science University, USA

4 Department of Tropical Medicine, Faculty of Medicine, University of Kinshasa, Democratic Republic of Congo

5 Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liege, Liege, Belgium

6 Laboratoire d'Analyses et de Recherche sur l'Alimentation et la Nutrition (LARAN), Department of Biology, Faculty of Science, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
