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Anti-Inflammatory and Antioxidant Properties of the Aqueous Extracts of the Leaves of Opilia amentacea (Opiliaceae)

Pharmacology & Pharmacy 2023年第9期14卷 329-347页

作者： Rainatou Boly Abdoul Gilchrist laurent Boly Wendkouni Leila Marie Esther Belem-Kabré Kadiatou Tata Traoré Boukaré Kaboré Ollo youl latifatou Sawadogo Mathieu Nitièma Moumouni Koala Noufou Ouédraogo estella noëla hoho youl Maminata Traoré-Coulibaly laboratoire de Recherche-Développement/Phytomédicaments et Médicaments (LR-D/PM) Institut de Recherche en Sciences de la Santé (IRSS) Centre National de la Recherche Scientifique et Technologique (CNRST) Ouagadougou Burkina Faso Ecole Doctorale Sciences et Technologie Laboratoire de Chimie Organique et Physique Appliquée (LCOPA) Université Joseph Ki-Zerbo Ouagadougou Burkina Faso Ecole Doctorale Sciences et Techniques Laboratoire de Biochimie et Chimie Appliquées (LABIOCA) Université Joseph Ki-Zerbo Ouagadougou Burkina Faso Ecole Doctorale Sciences de la Santé Laboratoire de Développement du Médicament (LADME) Centre de Formation de Recherche et d’Expertises en Sciences du Médicament (CEA-CFOREM) Université Joseph Ki-Zerbo Ouagadougou Burkina Faso

Opilia amentacea (Opiliaceae) is a woody plant with multiple medicinal claimed effects. The present study aimed to assess the anti-inflammatory and antioxidant activities of the decoction and macerate extracts from the leaves of Opilia amentacea. Moreover, acute toxicity and phytochemical analysis were performed. The acute toxicity was evaluated on NMRI mice at 2000 mg/kg bw. The anti-inflammatory activity was studied using the carrageenan-induced mouse paw edema and the lipoxygenase inhibition assay. The radical scavenging (DPPH and ABTS), ferric-reducing antioxidant power (FRAP), and lipid peroxidation (LPO) assays were used to measure the antioxidant capacity of the extracts. Qualitative and quantitative methods served for identifying and quantifying the extract’s phytoconstituents. The decoction demonstrated low acute toxicity;the lethal dose was therefore estimated to be superior to 2000 mg/kg bw. The extracts significantly reduced the mouse paw’s thickness at 600 mg/kg bw. The extracts developed weak radical scavenging and lipid peroxidation inhibitory effects. However, the macerate showed a high ability (664.90 ± 0.71 mol Ascorbic Acid Equivalent/g dry extract) to reduce the ferric ions. Saponins, sterols, triterpenes, and flavonoids were qualitatively detected in the two extracts. Total phenolics (TP) and total flavonoids (TF) were found abundant in the extracts, especially the decoction (TP content (TPC) = 94.03 ± 2.66 mg GAE/g;TF content (TFC) = 35.05 ± 0.32 mg QE/g). Strong positive correlations existed between ferric-reducing capacity and TPC (r = 0.959) for the macerate, while TFC was mainly involved in the DPPH radical scavenging of the two extracts. Instead, most correlations were negative between the polyphenol compounds and the anti-inflammatory assays. The results indicate potent in vivo anti-inflammatory and in vitro antioxidant effects of the aqueous extracts from the leaves of Opilia amentacea. Further studies are needed to find the anti-inflamm

关键词： Opilia amentacea Aqueous Extracts Acute Toxicity Anti-Inflammatory Antioxidant

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Anti-Inflammatory and Antioxidant Properties of the Aqueous Extracts of the Leaves of Opilia amentacea (Opiliaceae)

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Pharmacology & Pharmacy（药理与制药） 2023年第9期

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