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Aims: To determine the phytochemical composition and evaluate the antioxidant and anti-inflammatory properties of methanolic and aqueous extracts from Ampelocissus africana (Lour) Merr rhizomes. Study Design: Phytochemical content and screening, in vitro antioxidant and anti-inflammatory assays. Place and Duration of Study: Department of Traditional Pharmacopoeia and Pharmacy (MEPHATRA / PH) of the Institute for Research in Health Sciences (IRSS) and Laboratory of Applied Biochemistry and Chemistry (LABIOCA), University Joseph KI-ZERBO in Ouagadougou between April and August 2020. Methodology: The antioxidant activity of both extracts of the plant was assessed using DPPH radical scavenging, ABTS+ radical cation decolorization, ferric ion reduction and lipid peroxidation inhibition in rat liver assays. The anti-inflammatory activities in vitro were measured on the ability of the extract to inhibit the activity of enzymes such as 15-lipoxygenase, phospholipase A2 (PLA2) and cyclooxygenases (COX-1 and COX-2). Results: This study revealed that the total phenolic contents of the extracts varied from 471.79 ± 1.71 mg GAE/g to 173.88 ± 1.71 mg GAE/g for methanolic and aqueous extract respectively. The extracts were also rich in flavonoids and tannins. The methanolic extract possessed better antioxidant activity with an IC50 of 2.32 ± 0.18 µg/ml for the ABTS, 1.71 ± 0.05 µg/mL for the DPPH, a reducing power agent of 87.44 ± 0.5 mmol AAE /100 g and a percentage inhibition of lipid peroxidation of 52.21%. The methanolic and aqueous extract of A. africana has an inhibitory action on activity of lipoxygenase with IC50 values of 26.09 ± 1.83 μg/mL to 34.32 ± 1.60 μg/mL, respectively. The methanolic extract caused COX-1 inhibition of 36.07%, COX-2 inhibition of 38.31% and PLA2 inhibition of 26.9%. Conclusion: These results showed that the methanolic and aqueous extract from the rhizomes of Ampelocissus africana possessed antioxidant power, inhibitor effect against proinflammatory enzymes.

Background: Burkina Faso is classified among the countries with a high prevalence (˃12%) of hepatitis. Hepatic diseases, such as cirrhosis—related to alcoholism—and hepatitis B and C, are the cause of the increase in cases of liver cancer. They promote the development of cancer by decreasing the natural cell death, causing problems with DNA repair, or by increasing the production of free radical toxins to the cell. According to the World Health Organization (WHO), there were nearly 639,000 deaths from liver cancer worldwide in 2014, hence the need to search for natural hepatoprotective molecules. Objective: To evaluate the hepatoprotective potential of Acanthospermum hispidum extracts on rats and the antioxidant capacity of extracts in vitro and in vivo, and to perform phytochemistry. Methods: The ethanolic and aqueous extracts of the whole Acanthospermum hispidum plant were used to evaluate hepatoprotection. The hepatotoxin used in our case was diethylenitrosamine. The animals were divided into groups of six. The sera of the treated animals were used for the determination of transaminases, and the liver homogenates were used for the determination of antioxidant. The total phenol and flavonoid contents, and the antioxidant properties of the extracts, were evaluated in vitro. Results: The results of the in vitro antioxidant tests showed good antioxidant activity of the ethanolic extract, using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) test (0.08 ± 0.0018 μg/mL) and 2,2′-azinobis (3-ethylbenzolin-6-sulphonate) (ABTS) (246.05 ± 1.55 mmol TE/g). The in vivo tests showed, through the evaluation of the antioxidant in vivo and the biochemical parameters, that the ethanolic extract with the highest phenolic content had a good hepatoprotective capacity. Conclusions: The antioxidant activity of Acanthopermum hispidum extracts would justify the observed hepatoprotective activity. These results confirmed that the plant is used in the treatment of liver diseases in traditional medicine in Burkina Faso.

Acute hepatitis B and its complications cause 800000 and 3300 deaths each year respectively in the world and in Burkina Faso. In Burkina Faso, the majority of the population uses medicinal plants to treat hepatitis. The present study consisted to identify the medicinal plants used to treat hepatitis in COMOE province of Burkina Faso. Extracts from the most cited species were screened for their antioxidant capacity (using ABTS and FRAP methods) and their content in phenolics. Thirty-two anti-hepatitis species belonging to 29 genera and 20 families were recorded in the COMOE province. Extracts from Diospyros mespiliformis and Terminalia macroptera showed the best antioxidant activities (1.17 ± 0.00 mM TEAC/g and 70.77 ± 0.4 μM ET/g ; 1.09 ± 0.03 mM TEAC/g and 81.17 ± 0.5 μM TE/g extract, respectively).The same extracts exhibited the highest total phenolic contents. Low correlation has been obtained between total phenolic contents and antioxidant capacity (TEAC) of the extracts. This finding suggests that non-phenolic antioxidant compounds would be involved in the bioactivity of these species. This study constitutes a contribution in the safeguarding of traditional hepatoprotective medicinal knowledge of COMOE province of Burkina Faso. Keywords : Anti-hepatitis plants, antioxidant activity, COMOE province, Burkina Faso.

An ethnobotanical survey of medicinal plants used to treat hepatitis in the Mouhoun region of Burkina Faso was undertaken. The extracts of the most quoted species were then evaluated for their phytochemistry and their antioxidant activityThe anti-radical activity (by the method of the discoloration of the ABTS cation radical) and that of the antioxidant (by the method of the reduction of the iron ion, FRAP) were evaluated. Then the phenolic content of the aqueous extracts was determined and a correlation was studied between these two parameters.The antioxidant tests showed that the plants counted have a good antioxidant power. The three most active extracts are those of the trunk and root bark of Pseudocedrela kostchyi, and the trunk bark of Sterculia setigera. The extract of the bark of the trunk of Sterculia setigera showed the highest total tannin and phenolic content, while that of the leaves of Piliostigma reticulatum showed the highest content of flavonoids. The analyses showed that there is a relationship between the total phenolic contents and the antioxidant capacities of all the extracts (R2 = 0.82).The extracts of the trunk and root barks of Pseudocedrela kostchyi, and that of the trunk bark of Sterculia setigera showed the best antioxidant properties. They could be good candidates for the search for liver protective molecules.

Background : Plants are frequently used by traditional healer for the care of the hepatic pathologies. Objective : This study is part of the valorization of the hepatoprotective potential of some plants used in traditional medicine for the care of hepatitis in the Hauts-Bassins region of Burkina Faso. Materials and methods : A survey realized in this region allowed retaining 5 species, after the classification according to the frequency of quotation and the bibliographic review, among the 44 species recorded: Anogeissus leiocarpus (DC.) Guill. & Perr (Combretaceae), Balanites aegyptiaca Delie. (Balanitaceae), Cassia alata L. (Ceasalpiniaceae), Opilia celtidifolia (Guill. & Perr.) Endl. (Opiliaceae) and Ziziphus mauritiana L. (Rhamnaceae). The content in phenolic compounds of the aqueous extracts of these plants was determined. Their antioxidant activity was evaluated by two methods: discoloration of radical cation ABTS and iron reduction (FRAP). Results : Anogeissus leiocarpus and Ziziphu smauritiana gave the strongest antioxidant activities and high phenolic compounds (total phenolics, total flavonoids, total tannins and flavonols). The antioxidant activity (FRAP, ABTS) was associated with the total phenolic content of the extracts expressed in tannic acid equivalent per 100 grams of dry matter with R 2 of 0.8148 and 0.7966. Conclusion : The antioxidant activity and the content phenolic compounds observed during this study with Anogeissus leiocarpus and Ziziphus mauritiana indicates that these two plants have a high hepato protective potential which can justify their use by the Traditional healer in the care of hepatitis.