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10 results on '"Kouam, Simeon Fogue"'

1. LC-MS Identification and Preliminary Pharmacological Study of the Aqueous and Ethanol Extracts from Combretum glutinosum Perr ex DC. (Combretaceae)

Author

Toklo, Placide Mahougnan, Ahomadegbe, Mathias Amour, Dah-Nouvlessounon, Durand, Jouda, Jean-Bosco, Tchegnitegni, Billy Toussie, Wouamba, Steven Collins Njonte, Ahoton, Djidénou, Assogba, Mahoudo Fidèle, Tchamgoue, Joseph, Lenta, Bruno Ndjakou, Kouam, Simeon Fogue, Baba-Moussa, Lamine, Ladekan, Eléonore Chikani Yayi, and Gbenou, Joachim Djimon

Published
2023
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3. In Vitro and Molecular Docking Evaluation of the Anticholinesterase and Antidiabetic Effects of Compounds from Terminalia macroptera Guill. & Perr. (Combretaceae)

Author

Feunaing, Romeo Toko, primary, Tamfu, Alfred Ngenge, additional, Gbaweng, Abel Joel Yaya, additional, Kucukaydin, Selcuk, additional, Tchamgoue, Joseph, additional, Lannang, Alain Meli, additional, Lenta, Bruno Ndjakou, additional, Kouam, Simeon Fogue, additional, Duru, Mehmet Emin, additional, Anouar, El Hassane, additional, Talla, Emmanuel, additional, and Dinica, Rodica Mihaela, additional

Published
2024
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7. Potentiation effect of mallotojaponin B on chloramphenicol and mode of action of combinations against Methicillin-resistant Staphylococcus aureus

Author

Nguena-Dongue, Branly-Natalien, primary, Tchamgoue, Joseph, additional, Ngandjui Tchangoue, Yvan Anderson, additional, Lunga, Paul Keilah, additional, Toghueo, Kouipou Rufin Marie, additional, Zeuko`o, Menkem Elisabeth, additional, Melogmo, Yanick Kevin Dongmo, additional, Tchouankeu, Jean Claude, additional, Kouam, Simeon Fogue, additional, and Fekam, Boyom Fabrice, additional

Published
2023
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8. Polyoxygenated Stigmastane-Type Steroids from Vernonia kotschyana Sch. Bip. ex Walp. and Their Chemophenetic Significance

Author

Tseme Wandji, Nadine, Bitchagno, Gabin Thierry M., Mawabo Kamga, Isabelle, Tchamgoue, Joseph, Nkenfou, Celine Nguefeu, Lenta, Bruno Ndjakou, Sewald, Norbert, and Kouam, Simeon Fogue

Subjects
antibacterial activity, structure elucidation, Asteraceae, stigmastanes, chemophenetic significance, Vernonia kotschyana
Abstract

Four polyoxygenated stigmastanes (1–4) alongside known analogues (7–8) and flavonoids (5–6) were isolated from a dichloromethane/methanol (1:1, v/v) extract of the whole plant of Vernonia kotschyana Sch. Bip. ex Walp. (Asteraceae). Their structures were determined by means of spectroscopic and spectrometric analysis. The relative stereochemistry of the new compounds was established and confirmed via biosynthesis evidence and cyclization of 1 under acidic conditions. A plausible biosynthetic pathway to the new compounds and the chemophenetic significance of the isolated constituents were also discussed. The crude extract, fractions, and compounds (1–3) were assessed for their antibacterial activity against five highly prevalent bacterial strains. The fractions and compounds showed low to moderate activity with minimal inhibitory concentrations (MICs) > 125 µg/mL.

Published
2023

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