Search Results - "Ngnokam, David"

Antimicrobial activities of saponins from Melanthera elliptica and their synergistic effects with antibiotics against pathogenic phenotypes by Tagousop, Cyrille Ngoufack, Tamokou, Jean-de-Dieu, Kengne, Irene Chinda, Ngnokam, David, Voutquenne-Nazabadioko, Laurence

“…Background Resistance of bacteria and fungi to antibiotics is one of the biggest problems that faces public health. The present work was designated to evaluate…”
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Antibacterial, antifungal and antioxidant activities of whole plant chemical constituents of Rumex abyssinicus by Kengne, Irene Chinda, Feugap, Léonel Donald Tsamo, Njouendou, Abdel Jélil, Ngnokam, Claudia Darille Jouogo, Djamalladine, Mahamat Djamalladine, Ngnokam, David, Voutquenne-Nazabadioko, Laurence, Tamokou, Jean-De-Dieu

“…Antibiotic resistance has contributed to the burden of infectious diseases both in the hospital and community setting, and represents a great threat to public…”
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A New Stilbene Dimer and Other Chemical Constituents from Monanthotaxis littoralis with Their Antimicrobial Activities by Arnaud, Joseph Nguetse Dongmo, Steve, Endeguele Ekom, Tamokou, Jean-de-Dieu, Cyrille, Ngoufack Tagousop, Harakat, Dominique, Laurence, Voutquenne-Nazabadiok, David, Ngnokam

“…A new dimer stilbene [Monalittorin (1)] and ten known compounds [engeletin (2), aurantiamide acetate (3), lupeol (4), friedelin (5), quercetin (6), tiliroside…”
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Antimicrobial activities of flavonoid glycosides from Graptophyllum grandulosum and their mechanism of antibacterial action by Tagousop, Cyrille Ngoufack, Tamokou, Jean-de-Dieu, Ekom, Steve Endeguele, Ngnokam, David, Voutquenne-Nazabadioko, Laurence

“…The search for new antimicrobials should take into account drug resistance phenomenon. Medicinal plants are known as sources of potent antimicrobial compounds…”
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Complex secondary metabolites from Ludwigia leptocarpa with potent antibacterial and antioxidant activities by Mabou, Florence Déclaire, Tamokou, Jean-de-Dieu, Ngnokam, David, Voutquenne-Nazabadioko, Laurence, Kuiate, Jules-Roger, Bag, Prasanta Kumar

“…Diarrhea continues to be one of the most common causes of morbidity and mortality among infants and children in developing countries. The aim of the present…”
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New oleanane-type saponins: Leptocarposide B-D, from Ludwigia leptocarpa (Onagraceae) by Mabou, Florence Déclaire, Ngnokam, David, Harakat, Dominique, Voutquenne-nazabadioko, Laurence

“…Three new oleanane-type saponins, leptocarposide B-D (1–3), were isolated from the whole plant of Ludwigia leptocarpa (Nutt.) Hara, together with ten known…”
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Leptocarposide: a new triterpenoid glycoside from Ludwigia leptocarpa (Onagraceae) by Mabou, Florence Déclaire, Tebou, Perrin Lanversin Foning, Ngnokam, David, Harakat, Dominique, Voutquenne-Nazabadioko, Laurence

“…A new triterpenoid bidesmoside (leptocarposide) possessing an acyl group in their glycosidic moiety (1), together with the known luteolin‐8‐C‐glucoside (2) and…”
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A New Stilbene Dimer and Other Chemical Constituents from Monanthotaxis littoralis with Their Antimicrobial Activities by Dongmo, Arnaud Joseph Nguetse, Ekom, Steve Endeguele, Tamokou, Jean-de-Dieu, Tagousop, Cyrille Ngoufack, Harakat, Dominique, Voutquenne-Nazabadioko, Laurence, Ngnokam, David

“…A new dimer stilbene [Monalittorin (1)] and ten known compounds [engeletin (2), aurantiamide acetate (3), lupeol (4), friedelin (5), quercetin (6), tiliroside…”
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Antimicrobial and antioxidant flavonoids from the leaves of Oncoba spinosa Forssk. (Salicaceae) by Djouossi, Marie Geneviève, Tamokou, Jean-de-Dieu, Ngnokam, David, Kuiate, Jules-Roger, Tapondjou, Leon Azefack, Harakat, Dominique, Voutquenne-Nazabadioko, Laurence

“…Naturally occurring flavonoids have been reported to possess various pharmacological properties. The aim of this study was to evaluate the antimicrobial and…”
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New triterpenoid saponin from the aerial part of Abrus canescens Welw ex. Bak. (Fabaceae) and their antibacterial activities by Mahamat Djamalladine, Djamalladine, Mabou, Florence Déclaire, Feugap Tsamo, Donald Leonel, Tamokou, Jean-De-Dieu, Voutquenne-Nazabadioko, Laurence, Tsopmo, Apollinaire, Ngnokam, David

“…The chemical investigation of the aerial part of led to isolation of a new triterpenoid glycoside named Canescensoside ( ) and four known compounds including…”
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Melantheraside A–E, five original triterpenes with natural chloride or oxime group from the aerial parts of Melanthera elliptica O. Hoffm by Tagousop, Cyrille Ngoufack, Ngnokam, David, Harakat, Dominique, Voutquenne-Nazabadioko, Laurence

“…[Display omitted] •Five new pentacyclic triterpenoids were isolated from Melanthera elliptica.•Structural elucidation using NMR data in conjunction with mass…”
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A new phenolic glycoside from the leaves of Flacourtia flavescens Willd by Ngnokam Jouogo, Darille Claudia, Eckhardt, Paul, Tamokou, Jean-De-Dieu, Matsuete Takongmo, Germaine, Voutquenne-Nazabadioko, Laurence, Opatz, Till, Tapondjou, Léon Azefack, Ngnokam, David, Teponno, Rémy Bertrand

“…Chemical study of the methanol extract from the leaves of Flacourtia flavescens led to the isolation of a new phenolic glucoside (1) along with fifteen known…”
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Antimicrobial and Antioxidant Secondary Metabolites from Trifolium baccarinii Chiov. (Fabaceae) and Their Mechanisms of Antibacterial Action by Tsamo, Donald Léonel Feugap, Tamokou, Jean-De-Dieu, Kengne, Irene Chinda, Ngnokam, Claudia Darille Jouogo, Djamalladine, Mahamat Djamalladine, Voutquenne-Nazabadioko, Laurence, Ngnokam, David

“…The treatment of infectious diseases with antimicrobial agents continues to present problems in modern-day medicine with many studies showing significant…”
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Chemotaxonomy and Antibacterial Activity of the Extracts and Chemical Constituents of Psychotria succulenta Hiern. (Rubiaceae) by Ngnokam Jouogo, Darille Claudia, Tamokou, Jean-De-Dieu, Teponno, Rémy Bertrand, Matsuete-Takongmo, Germaine, Voutquenne-Nazabadioko, Laurence, Tapondjou, Léon Azefack, Ngnokam, David

“…The use of natural products for medicinal purposes is becoming more and more common nowadays, as evidenced by the presence in plants of secondary metabolites…”
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Triterpene and Steroids from Ludwigia abyssinica A. Rich (Onagraceae) Displayed Antimicrobial Activities and Synergistic Effects with Conventional Antibiotics by Meli Sonkoue, Arlette, Kengne, Irene Chinda, Tamekou Lacmata, Stephen, Jouogo Ngnokam, Claudia Darille, Djamalladine Djamalladine, Mahamat, Voutquenne-Nazabadioko, Laurence, Ngnokam, David, Tamokou, Jean-de-Dieu

“…Difficulties encountered in treating drug-resistant pathogens have created a need for new therapies. Synergistic combinations of antibiotics are considered as…”
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Two new antimicrobial steroids and other constituents from the whole plant of Ludwigia abyssinica by Meli, Arlette Sonkoue, Mabou, Florence Déclaire, Ngnokam, Claudia Darille Jouogo, Kembou, Alex Junior Ngoufack, Tamokou, Jean-De-Dieu, Matsuete, Germaine Takongmo, Voutquenne-Nazabadioko, Laurence, Tsopmo, Apollinaire, Ngnokam, David

“…The genus Ludwigia belongs to the Onagraceae family and it encompasses seventy-five species of aquatic plants. The chemistry of this genus is scarcely…”
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Three new flavonoid glycosides from the aerial parts of Graptophyllum grandulosum Turril ( Acanthaceae ) by Ngoufack Tagousop, Cyrille, Ngnokam, David, Harakat, Dominique, Voutquenne-Nazabadioko, Laurence

“…Grandulosides A-C, three new flavonoid glycosides, were isolated from the aerial parts of Graptophyllum grandulosum Turill and identified as…”
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Three new iridolactone derivatives from the whole plant of Brillantaisia owariensis P. Beauv by Foning Tebou, Perrin Lanversin, Ngnokam, David, Harakat, Dominique, Voutquenne-Nazabadioko, Laurence

“…Owariensisone B-D, three new lactone iridoids, identified as lactone of α-(3-acetoxymethyl-2-hydromethylcyclopent-3-en-yl) ethanoic acid (1), lactone of…”
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Potential anti-proliferative effects of chemical constituents and hemisynthetic derivatives from Scadoxus pseudocaulus ( Amarillydaceae ) by Pagning, Annie Laure Ngankeu, Tamokou, Jean-de-Dieu, Muhammad, Bushra Taj, Ngnokam, David, AzefackTapondjou, Leon, Ali, Mohammad Shaiq, Hameed, Muhammad Waqar

“…Biological significance of is well advocated from the literature. In Cameroon, plants from this family are routinely used for the cure of liver, cancer and…”
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A-type doubly linked proanthocyanidin trimer and other metabolites from Canthium venosum fruits, and their biological activities by Dongmo, Appolinaire Kene, Nono, Raymond Ngansop, Kaaniche, Fatma, Mawabo, Isabelle Kamga, Frese, Marcel, Chouna, Jean Rodolphe, Nkenfou, Celine Nguefeu, Lenta, Bruno Ndjakou, Ngnokam, David, Nkeng-Efouet-Alango, Pépin, Sewald, Norbert

“…[Display omitted] •Monomer, dimer and trimer of catechin and epicatechin.•A-type doubly linked proanthocyanidin trimer from Canthium venosum fruits.•Compounds…”
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