title: In vitro cytotoxicity and antioxidant activities of five medicinal plants of Malvaceae family from Cameroon.
abstract: The potential antiproliferative and antioxidant activities of extracts from five medicinal plants from Cameroon were evaluated in vitro on HepG-2 cells. The results showed the significant decrease of the viability of the cells in a concentration-dependent manner. According to the IC(50) obtained, the extracts of S. acuta (461.53±0.23) and U. lobata (454.93±0.12) showed significant antiproliferative activity. At fixed concentration (250μgmL(-1)), extracts demonstrated higher antiproliferative activity (67.05%; 65.42%), (52.62%; 56.64%) and (32.98%; 36.85%) respectively during 24, 48 and 72h. Extracts of S. cordifolia and V. album demonstrated significant antiproliferative property after 48h while S. rhombifolia exhibited weak cytotoxicity. The results of the antioxidant properties showed that theses extracts induced significantly increase of SOD, CAT and GsT activity after 48h. Taken together, the results extracts showed that of S. acuta and U. lobata may be a promising alternative to synthetic substances as natural compound with high antiproliferative and antioxidant activities.
authors.affiliation: Department of Biochemistry and Physiological Science, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, P.O. Box 1364 Yaoundé, Cameroon; Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Romania.
authors.forename: C A
authors.initials: CA
authors.lastname: Pieme
authors.forename: V N
authors.initials: VN
authors.lastname: Penlap
authors.forename: J
authors.initials: J
authors.lastname: Ngogang
authors.forename: M
authors.initials: M
authors.lastname: Costache