Results 31 to 40 of about 1,494 (196)

In vitro and in vivo antimalarial and cytotoxic activity of five plants used in Congolese traditional medicine. [PDF]

open access: yes, 2010
peer reviewedAIM OF THE STUDY: The in vitro antiplasmodial activity and cytotoxicity of methanolic and dichloromethane extracts from five Congolese plants were evaluated. The plants were selected following an ethnobotanical survey conducted in D.R. Congo
Angenot, Luc   +7 more
core   +1 more source

Attempted Synthesis of Vinca Alkaloids Condensed with Three-Membered Rings

open access: yesMolecules, 2018
Our successful work for the synthesis of cyclopropanated vinblastine and its derivatives by the Simmons–Smith reaction was followed to build up further three-membered rings into the 14,15-position of the vindoline part of the dimer alkaloid ...
András Keglevich   +8 more
doaj   +1 more source

Facilitating biomimetic syntheses of borrerine derived alkaloids by means of flow-chemical methods [PDF]

open access: yes, 2015
Flow chemistry is widely used nowadays in synthetic chemistry and has increasingly been applied to complex natural product synthesis. However, to date flow chemistry has not found a place in the area of biomimetic synthesis.
Kamptmann, SB, Ley, SV
core   +1 more source

A Simplified Procedure for Indole Alkaloid Extraction from Catharanthus roseus Combined with a Semi-synthetic Production Process for Vinblastine

open access: yesMolecules, 2007
Dried leaves of Catharanthus roseus were extracted with aqueous acidic 0.1 M solution of HCl. Alkaloid-embonate complexes were obtained as precipitates by treating the extract with an alkaline (NaOH) solution of embonic acid (4,4-methylene-bis-3 ...
Marja-Liisa Riekkola   +4 more
doaj   +1 more source

Antimicrobial activities of secondary metabolites of endophytic fungi isolated from Catharanthus roseus [PDF]

open access: yes, 2017
Introduction: Recently, several endophytes have been shown to possess the potentials to synthesize novel bioactive compounds that have found use for drug discovery. We isolated endophytic fungi associated with Catharanthus roseus collected from the river
Abba, Chika C.   +6 more
core   +2 more sources

Bisleuconothine A protects periodontal tissue via the regulation of RANKL expression and infiltration of inflammatory cells [PDF]

open access: yes, 2020
Purpose: To investigate the protective effect of bisleuconothine A on periodontal tissue in rats and the mechanism involved. Methods: Adult male Sprague Dawley rats (n = 32) weighing 180 - 200 g (mean weight, 190 ± 10 g) were randomly assigned to four ...
Sun, Ping, Sun, Qiang, Wang, Fang
core   +2 more sources

Cell type matters : competence for alkaloid metabolism differs in two seed-derived cell strains of Catharanthus roseus [PDF]

open access: yes, 2023
Since the discovery of the anticancer drugs vinblastine and vincristine, Catharanthus roseus has been intensively studied for biosynthesis of several terpene indole alkaloids (TIAs).
Bunzel, Mirko   +7 more
core   +1 more source

A Facile Synthesis of Deaza-Analogues of the Bisindole Marine Alkaloid Topsentin

open access: yesMolecules, 2013
A series of substituted ethyl 1-[(tert-butoxycarbonyl)amino]-2-methyl-5- (1-methyl-1H-indol-3-yl)-4-[(1-methyl-1H-indol-3-yl)carbonyl]-1H-pyrrole-3-carboxylates were prepared in excellent yields (82-98%) by one-pot reactions between β-dicarbonyl ...
Gianfranco Favi   +5 more
doaj   +1 more source

FGFC1 Selectively Inhibits Erlotinib-Resistant Non-Small Cell Lung Cancer via Elevation of ROS Mediated by the EGFR/PI3K/Akt/mTOR Pathway

open access: yesFrontiers in Pharmacology, 2022
Non-small cell lung cancer (NSCLC) is one of the most common malignancies in the world. Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) have been used as a first-line treatment for patients harboring with EGFR mutations in ...
Shike Yan   +12 more
doaj   +1 more source

Transcriptome analysis of Catharanthus roseus for gene discovery and expression profiling. [PDF]

open access: yesPLoS ONE, 2014
The medicinal plant, Catharanthus roseus, accumulates wide range of terpenoid indole alkaloids, which are well documented therapeutic agents. In this study, deep transcriptome sequencing of C.
Mohit Verma   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy