Bibliografias temáticas / Distemonanthus Benthamianus

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Literatura científica selecionada sobre o tema "Distemonanthus Benthamianus"

Autor: Grafiati
Publicado: 19 de outubro de 2024

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Artigos de revistas sobre o assunto "Distemonanthus Benthamianus"

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Matah Marte, Vanessa Mba, Gilbert Ateufack, Marius Mbiantcha, Albert Donatien Atsamo, Carine Flore Adjouzem, Stéphanie Flore Djuichou Nguemnang, Eric Gonzal Tsafack, William Yousseu Nana, Yacine Karelle Madjo Kouam e Elvira Ngoufack Azanze. "Methanolic Extract of Distemonanthus benthamianus (Caesalpiniaceae) Stem Bark Suppresses Ethanol/Indomethacin-Induced Chronic Gastric Injury in Rats". Gastroenterology Research and Practice 2020 (28 de novembro de 2020): 1–14. http://dx.doi.org/10.1155/2020/8180323.

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Distemonanthus benthamianus (Caesalpiniaceae) is a plant from the Cameroon pharmacopoeia very widely used in the treatment of many pathologies among which are gastrointestinal disorders. The main purpose of this study was to assess the healing properties of gastric ulcer from the methanolic extract of Distemonanthus benthamianus and its mechanisms of action. The healing properties of gastric ulcers (chronic ulcer model induced by ethanol and indomethacin) were evaluated in vivo in adult male rats, while the mechanisms of action were evaluated in vitro by anti-inflammatory assay (protein denaturation, cyclooxygenase, and lipoxygenase assays) and immunomodulatory assay (ROS production (using technical chemiluminescence), cytokine (TNF-α, IL-1β, IL-6) production (using ELISA), proliferation of T cells (using liquid scintillation counter), and cytotoxicity (using MTT assay)). The methanolic extract of Distemonanthus benthamianus inhibited protein denaturation (75.63%) and the activities of cyclooxygenase (78.92%) and 5-lipoxygenase (81.54%). The extract also significantly ( p < 0.001 ) inhibited intracellular and extracellular ROS production and T cell proliferation and reduced significantly ( p < 0.01 , p < 0.001 ) TNF-α, IL-1β, IL-6, and PGE2 production. At all doses (125, 250, and 500 mg/kg), the extract significantly reduces the ulceration index and the area of ulceration and significantly increases the mass of gastric mucus. In addition, the extract significantly decreases the level of MDA, significantly increases the activities of catalase and glutathione, and then improves the hematological parameters in sick animals. Histological micrographs show that in the presence of the extract, there is advanced reepithelialization with recovery of the ulcerated epithelium. Thus, the extract of Distemonanthus benthamianus has healing properties against gastric ulcers which are associated with its anti-inflammatory, immunomodulatory, and antioxidant effects.
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Happi, Emmanuel N., e Theophile N. Mpondo. "Two Polymethoxylated Flavones from Distemonanthus benthamianus". Journal of Natural Products 57, n.º 2 (fevereiro de 1994): 291–93. http://dx.doi.org/10.1021/np50104a015.

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Ogunsola, J. F., e K. E. Ogunsola. "Antimicrobial property of <i>Distemonanthus, Zanthoxylum, Morinda</i>, and <i>Moringa</i> species on potato (<i>Solanum tuberosum</i>) postharvest bacterial tuber rot". Ife Journal of Science 26, n.º 2 (28 de agosto de 2024): 457–69. http://dx.doi.org/10.4314/ijs.v26i2.17.

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Potato (Solanum tuberosum) is a very important crop globally with a high value for human nutrition. Its productivity in Nigeria is hindered by bacterial rot disease, which is commonly managed with synthetic pesticides despite its detriment to humans and the environment. This study investigated the antimicrobial potential of four botanicals (Distemonanthus benthamianus, Zanthoxylum zanthoxyloides (Zz), Morinda lucida, and Moringa oleifera (Mo) in vitro against four postharvest potato tuber rot-causing bacteria. One hundred rotted tubers were collected from four markets viz: Bodija, Sabo, and Apata, Ibadan (Oyo State), and Garki (Abuja). Three concentrations (500, 1000, and 1500mg/ml) of methanol extract of each of the botanicals were evaluated against the rot bacteria. The antimicrobial property of the most effective explant in vitro was evaluated in vivo against the rot bacteria. Four bacteria (Erwinia carotovora (Ec), Clavibacter species, Bacillus subtillis, and Pseudomonas syringe pv. Phaseolicola) were isolated and identified to be responsible for the potato rot. The severity of rot induced by the bacteria ranged between 39.77 and 46.34%. Distemonanthus benthamianus extract (at 500- 1500mg/ml) significantly (p<0.05) produced the highest antibacterial property in vitro against the four bacterial isolates, followed by Zz whereas the other explants showed no bacteriotoxic property except Mo against Ec only at 1500mg/ml. Distemonanthus benthamianus, next to Erythromycin (antibiotics), produced higher inhibition zones (5.0±0-9.3±3.1mm) on all the bacteria isolates than all other explants and significantly inhibited rot development in potato in vivo. The high antimicrobial potential of D. benthamianus against postharvest bacterial tuber rot of potato suggests a safe biopesticide for postharvest potato disease management
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Malan, Elfranco, e Silverkanabathi Naidoo. "A hexa-substituted flavonol from Distemonanthus benthamianus". Phytochemistry 29, n.º 7 (janeiro de 1990): 2366. http://dx.doi.org/10.1016/0031-9422(90)83079-g.

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Malan, Elfranco. "A flavonol with a tetrasubstituted B-ring from Distemonanthus benthamianus". Phytochemistry 32, n.º 6 (janeiro de 1993): 1631–32. http://dx.doi.org/10.1016/0031-9422(93)85198-z.

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Aiyegoro, O. A., D. A. Akinpelu, A. J. Afolayan e A. I. Okoh. "Antibacterial Activities of Crude Stem Bark Extracts of Distemonanthus benthamianus Baill". Journal of Biological Sciences 8, n.º 2 (1 de fevereiro de 2008): 356–61. http://dx.doi.org/10.3923/jbs.2008.356.361.

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Shittu, AO, A. Aliyu, MS David, NS Njinga e HI Ishaq. "Potential Antibacterial Activity of Two Important Local Chewing Sticks “Fagara zanthoxyloides and Distemonanthus benthamianus” along with Antioxidant Capacities". Dhaka University Journal of Pharmaceutical Sciences 18, n.º 2 (12 de dezembro de 2019): 223–32. http://dx.doi.org/10.3329/dujps.v18i2.44462.

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In order to authenticate and ascertain the various claim by the rural dwellers that depend on chewing sticks for their oral hygiene and protection against innumerable diseases, the antibacterial activity of the roots of Fagara zanthoxyloides and Distemonanthus benthamianus were evaluated. Preliminary phytochemical screening was carried out using standard methods. In-vitro antibacterial activity of the methanol extracts of both plants was also carried out using the agar well diffusion method against standard strains of Staphylococcus aureus ATCC 25923, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella typhii ATCC 14028, Citrobacter freundii ATCC 8090 and also some clinical isolates of Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae and Proteus mirabilis at different concentrations and ratios. Preliminary phytochemical screening showed that the extracts contained alkaloids, saponin, tannins, steroids, flavonoids, anthraquinones, cardiac glycosides and phenol. All the test microorganisms were susceptible to the inhibitory effect of the extracts at concentrations of 200 mg/ml and 500 mg/ml. F. zanthoxyloides had better antimicrobial activity with zones of inhibition ranging from 21.0 to 26.0 mm at 200 mg/ml and 24.3 to 29.3 mm at 500 mg/ml while D. benthamianus had zones of inhibition ranging from 17.7 to 26.7 mm at 200 mg/mL and 19.0 to 26.7 mm at 500 mg/mL. Some of the test microorganisms were resistant to the standard antibiotics (cefuroxime, ciprofloxacin, ofloxacin and gentamicin). Combinations of the extracts in ratios 50:50 and 75:25 yielded no increase in activity. The MIC and MBC for D. benthamianus ranged from 6.25 mg/ml to 100 mg/mL and 25 to 200 mg/ml, respectively while that of F. zanthoxyloides ranged from 1.56 mg/ml to 12.5 mg/mL and 50 to 200 mg/ml, respectively. The antimicrobial activity demonstrated by F. zanthoxyloides and D. benthamianus indicates that they would be valuable in the management of urinary, respiratory and gastrointestinal tracts infections while at the same time helping to mitigate the problem of antimicrobial resistance. Phenolic compounds of plants, among them flavonoids are the chief constituents, which have potent antioxidant activities Dhaka Univ. J. Pharm. Sci. 18(2): 223-232, 2019 (December)
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Femi Oyewo, Mbang, Olutayo Adeleye, Caroline Babalola, Olufemi Banjo, Modupe Adebowale e Florence Odeleye. "In vitro evaluation of antimicrobial activity of Distemonanthus benthamianus chewing stick extract mouthwash". İstanbul Journal of Pharmacy 51, n.º 1 (30 de abril de 2021): 105–10. http://dx.doi.org/10.26650/istanbuljpharm.2020.0058.

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Kepdieu Tchebou, Robert V., Paul Eckhardt, Blondelle Matio Kemkuignou, Roland Tchuenguem, Romuald Tematio Fouedjou, Beaudelaire Kemvoufo Ponou, Jean Paul Dzoyem et al. "A dinorcassane-type diterpene and a steroidal saponin from Distemonanthus benthamianus Baill. (Caesalpiniaceae)". Phytochemistry Letters 48 (abril de 2022): 62–67. http://dx.doi.org/10.1016/j.phytol.2022.02.001.

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Marius, Mbiantcha, YousseuNana William, KwentehErnest Allah Hoki, Ateufack Gilbert, TsafackEric Gonzal, DjuichouNguemnang Stephanie Flore, FagniNjoya Zenab Linda et al. "Anti-arthritic effect of Distemonanthus benthamianus extracts against rheumatoid arthritis in rats". Asian Pacific Journal of Tropical Biomedicine 12, n.º 10 (2022): 411. http://dx.doi.org/10.4103/2221-1691.357740.

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Teses / dissertações sobre o assunto "Distemonanthus Benthamianus"

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Ella, Nkogo Ley-Fleury. "Caractérisation des extractibles des bois de Petersianthus macrocarpus et Letestua durissima : une approche multicritère pour comprendre leur durabilité naturelle et explorer de nouvelles opportunités de valorisation". Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0087.

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Cette étude s'est focalisée sur deux axes principaux : la caractérisation et l'étude des propriétés des substances extractibles de deux essences secondaires de la forêt gabonaise en vue d'une valorisation éventuelle, Letestua durissima et Petersianthus macrocarpus, ainsi que l'analyse des facteurs influençant la durabilité naturelle du bois. Les recherches ont débuté par des extractions successives par macération et au Soxhlet (utilisant le cyclohexane, le dichlorométhane, l'acétone, le mélange toluène/éthanol et l'eau) l'écorce, l'aubier et du duramen. Les résultats ont révélé des concentrations élevées de substances extractibles, notamment dans les écorces des deux essences, avec une analyse phytochimique mettant en évidence la présence de diverses familles chimiques telles que des composés phénoliques, des acides gras, des terpènes et des terpénoïdes. Les analyses infrarouges ont confirmé la présence de ces composés. De plus, l'utilisation de la GC-MS et de la LC-MS nous a permis d'identifier des composés tels que la catéchine, la gallocatéchine, l'acide gallique, la vanilline, etc. Les extraits ont démontré des propriétés antifongiques prometteuses contre les champignons de pourriture brune et blanche, ainsi qu'une activité antibactérienne, notamment contre Escherichia coli, avec les extraits de Letestua durissima se démarquant particulièrement. Les extraits ont également montré des propriétés anti-termites intéressent. Enfin, une étude plus large concernant l'étude de différents facteurs influençant la durabilité naturelle du bois a mis en évidence une forte corrélation entre des paramètres tels que la densité, le taux d'humidité, la mouillabilité, le taux d'extraits et le rapport sucre/lignine et la durabilité
This study focused on two main axes : the characterization and study of the properties of extractable substances from two secondary species of the Gabonese forest with a view to possible valorization, Letestua durissima and Petersianthus macrocarpus, as well as the analysis of the factors influencing the natural durability of wood. The research began with successive extractions by maceration and Soxhlet (using cyclohexane, dichloromethane, acetone, toluene/ethanol mixture and water) of the bark, sapwood and heartwood. The results revealed high concentrations of extractables, particularly in the barks of both species, with phytochemical analysis highlighting the presence of various chemical families such as phenolic compounds, fatty acids, terpenes and terpenoids. Infrared analyzes confirmed the presence of these compounds. Additionally, the use of GC-MS and LC-MS allowed us to identify compounds such as catechin, gallocatechin, gallic acid, vanillin, etc. promising against brown and white rot fungi, as well as antibacterial activity, particularly against Escherichia coli, with Letestua durissima extracts particularly standing out. The extracts also showed anti-termite properties. Finally, a broader study concerning the study of different factors influencing the natural durability of wood highlighted a strong correlation between parameters such as density, humidity rate, wettability, extract rate and sugar/lignin ratio and sustainability
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