Results 51 to 60 of about 229,471 (214)

Phytochemical Profile of Asplenium aethiopicum (Burm. f.) Becherer Using HPTLC

open access: yesSeparations, 2020
: The present study was aimed to validate the phenolic, flavonoids, alkaloids and tannins profile of Aspleniuma ethiopicum (Burm. f.) Becherer methanolic extracts using HPTLC (High-performance thin-layer chromatography).
Marimuthu alias Antonysamy Johnson   +5 more
doaj   +1 more source

Antimicrobial and Antimycobacterial Activity of Cyclostellettamine Alkaloids from Sponge Pachychalina sp.

open access: yesMarine Drugs, 2006
: Cyclostellettamines A – F (1 – 6) isolated from the sponge Pachychalina sp. and cyclostellettamines G - I, K and L (7 – 11) obtained by synthesis were evaluated in bioassays of antimicrobial activity against susceptible and antibiotic ...
Roberto G. S. Berlinck   +13 more
doaj   +1 more source

Dehydropyrrolizidine Alkaloid Toxicity, Cytotoxicity, and Carcinogenicity

open access: yesToxins, 2016
Dehydropyrrolizidine alkaloid (DHPA)-producing plants have a worldwide distribution amongst flowering plants and commonly cause poisoning of livestock, wildlife, and humans.
Bryan L. Stegelmeier   +2 more
doaj   +1 more source

In vitro wound healing of tumor cells: inhibition of cell migration by selected cytotoxic alkaloids

open access: yesBMC Pharmacology and Toxicology, 2019
Cell migration is involved in several pathological processes such as tumor invasion, neoangiogenesis and metastasis. Microtubules are needed in directional migration.
Xiaojuan Wang   +4 more
semanticscholar   +1 more source

Comparative study of the biological activities of the aqueous extracts of two spontaneous plants harvested in the Algerian Sahara [PDF]

open access: yesarXiv, 2020
The present study investigates the insecticidal and herbicidal effects of leaf extracts from two plants were harvested in the Northern Algerian Sahara. These are Cleome arabica (Capparaceae) and Pergularia tomentosa (Asclepiadaceae). The efficacy of the extracts from the plants was evaluated by the reflux extraction method.
arxiv  

Investigation of the Adrenergic and Opioid Binding affinities, Metabolic Stability, Plasma Protein Binding Properties and Functional Effects of Selected Indole-based Kratom Alkaloids.

open access: yesJournal of Medicinal Chemistry, 2019
Selected indole-based kratom alkaloids were evaluated for their opioid and adrenergic receptor binding and functional effects, in vivo antinociceptive effects, plasma protein binding and metabolic stability.
Samuel Obeng   +13 more
semanticscholar   +1 more source

Marine Drugs Regulating Apoptosis Induced by Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL)

open access: yesMarine Drugs, 2015
Marine biomass diversity is a tremendous source of potential anticancer compounds. Several natural marine products have been described to restore tumor cell sensitivity to TNF-related apoptosis inducing ligand (TRAIL)-induced cell death.
Mohammed I. Y. Elmallah, Olivier Micheau
doaj   +1 more source

Nigritanine as a New Potential Antimicrobial Alkaloid for the Treatment of Staphylococcus aureus-Induced Infections

open access: yesToxins, 2019
Staphylococcus aureus is a major human pathogen causing a wide range of nosocomial infections including pulmonary, urinary, and skin infections. Notably, the emergence of bacterial strains resistant to conventional antibiotics has prompted researchers to
Bruno Casciaro   +8 more
doaj   +1 more source

Biology, Genetics, and Management of Ergot (Claviceps spp.) in Rye, Sorghum, and Pearl Millet

open access: yesToxins, 2015
Ergot is a disease of cereals and grasses caused by fungi in the genus Claviceps. Of particular concern are Claviceps purpurea in temperate regions, C. africana in sorghum (worldwide), and C. fusiformis in pearl millet (Africa, Asia).
Thomas Miedaner, Hartwig H. Geiger
doaj   +1 more source

Biosynthesis and Molecular Genetics of Polyketides in Marine Dinoflagellates

open access: yesMarine Drugs, 2010
Marine dinoflagellates are the single most important group of algae that produce toxins, which have a global impact on human activities. The toxins are chemically diverse, and include macrolides, cyclic polyethers, spirolides and purine alkaloids ...
Ralf Kellmann   +4 more
doaj   +1 more source

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