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12 résultats
Cytotoxicity of selected Cameroonian medicinal plants and Nauclea pobeguinii towards multi-factorial drug-resistant cancer cells.
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BACKGROUND
Malignacies are still a major public concern worldwide and despite the intensive search for new chemotherapeutic agents, treatment still remains a challenging issue. This work was designed to assess the cytotoxicity of six selected Cameroonian medicinal plants, including Nauclea
Subditine, a new monoterpenoid indole alkaloid from bark of Nauclea subdita (Korth.) Steud. induces apoptosis in human prostate cancer cells.
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In this study, a new apoptotic monoterpenoid indole alkaloid, subditine (1), and four known compounds were isolated from the bark of Nauclea subdita. Complete (1)H- and (13)C- NMR data of the new compound were reported. The structures of isolated compounds were elucidated with various spectroscopic
A comparative study of the adhesion of biosynthesized gold and conjugated gold/prodigiosin nanoparticles to triple negative breast cancer cells.
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This paper explores the adhesion of biosynthesized gold nanoparticles (AuNPs) and gold (Au) nanoparticle/prodigiosin (PG) drug nanoparticles to breast cancer cells (MDA-MB-231 cells). The AuNPs were synthesized in a record time (less than 30 s) from Nauclea latifolia leaf extracts, while the PG was
Cytotoxicity of 15 Cameroonian medicinal plants against drug sensitive and multi-drug resistant cancer cells.
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BACKGROUND
Cameroonian medicinal plants are traditionally used to treat many ailments, including cancer and related diseases. Cancer is characterized as a condition with complex signs and symptoms. It has been recommended that ethnopharmacological usages such as immune and skin disorders,
Potential of Central, Eastern and Western Africa Medicinal Plants for Cancer Therapy: Spotlight on Resistant Cells and Molecular Targets.
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Cancer remains a major health hurdle worldwide and has moved from the third leading cause of death in the year 1990 to second place after cardiovascular disease since 2013. Chemotherapy is one of the most widely used treatment modes; however, its efficiency is limited due to the resistance of cancer
Three New Isomeric Indole Alkaloids from Nauclea officinalis.
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Three new isomeric monoterpene indole alkaloids, naucleofficines I-III (1-3, resp.) were isolated from the stems (with bark) of Nauclea officinalis. Their structures were elucidated on the basis of spectroscopic methods and single-crystal diffraction analyses. The cytotoxic activities of 1-3 against
Two new triterpenoids from Nauclea officinalis.
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Two new triterpenoids and three 27-nor-triterpenoids were isolated from the stems (with bark) of Nauclea officinalis. Their structures were identified to be 2β,3β,19α,23-tetrahydroxy-urs-12-en-28-oic acid (1), 2β,3β,19α,23-tetrahydroxy-urs-12-en-28-O-[β-D-glucopyranosyl (1-2)-β-D-glucopyranosyl]
A new indole alkaloid with anti-inflammatory from the branches of Nauclea officinalis.
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A new indole alkaloid, 17-oxo-19-(Z)-naucline, and six known alkaloids 2-7 were isolated from the branches of Nauclea officinalis. The structure of the new compound 1 was characterised mainly by analysing its physical data including IR, 1 D, 2 D NMR, and HR-ESI-MS. Other compounds were identified by
In vitro anti-inflammatory activities of naucleoffieine H as a natural alkaloid from Nauclea officinalis Pierrc ex Pitard, through inhibition of the iNOS pathway in LPS-activated RAW 264.7 macrophages.
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Naucleoffieine H, a natural indole alkaloid, was isolated and identified from Nauclea officinalis Pierrc ex Pitard which is a traditional Chinese medicine used for the treatment of various diseases, such as cold, fever, bronchitis, pneumonia, acute tonsillitis, etc. In the present study, the effect
[Synthesis, physicochemical and pharmacological properties of pentacyclic alkaloid-analogues].
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Quinazolinocarboline rutaecarpine and evodiamine (Evodia rutaecarpa) are main alkaloid components of traditional Chinese folk-remedies. Evodiamine exhibited selective antitumor and antimetastatic effects on several cancer cell lines and became lead structure of anticancer agents. During our
Anti-inflammatory effect of the six compounds isolated from Nauclea officinalis Pierrc ex Pitard, and molecular mechanism of strictosamide via suppressing the NF-κB and MAPK signaling pathway in LPS-induced RAW 264.7 macrophages.
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BACKGROUND
Nauclea officinalis Pierrc ex Pitard. is a Chinese medicinal herb that contains high level of alkaloids which is the most abundant and active constituent. Strictosamide isolated from Nauclea officinalis Pierrc ex Pitard. showed significant effects on inflammatory response, compared with
Cytotoxic indole alkaloids from Nauclea orientalis.
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A new indole alkaloid, nauclorienine (1), along with seven known alkaloids (2-8), were isolated from the stems and leaves of Nauclea orientalis. Among them, nauclorienine (1) was a new indole alkaloid holding a rare corynanthe-type skeleton, and the known compounds (2-8) were isolated from N.
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