Results 51 to 60 of about 435,947 (354)

Exploring the Pharmacological Potential of Lithospermum officinale L.: A Review of Phytochemicals and Ethnomedicinal Uses

open access: yesMolecules
Exploring phytochemicals from ethnomedicinal plants for pharmacological applications is a promising research area. By studying ethnomedicine, researchers can identify plants used for centuries to treat ailments and investigate their phytochemicals ...
Gulzhanat Barkizatova   +13 more
doaj   +1 more source

The Cultivation of Chelidonium majus L. Increased the Total Alkaloid Content and Cytotoxic Activity Compared with Those of Wild-Grown Plants

open access: yesPlants, 2021
The effect of cultivation practises on both the phytochemical profile and biological activity of aqueous ethanol extracts of Chelidonium majus L. was studied. Extracts were prepared from aerial parts of the same plant population collected in the wild and
Valerija Krizhanovska   +7 more
doaj   +1 more source

Detection and toxicity evaluation of pyrrolizidine alkaloids in medicinal plants Gynura bicolor and Gynura divaricata collected from different Chinese locations [PDF]

open access: yes, 2017
Two edible plants in Southeast Asia, Gynura bicolor and G.divaricata, are not only known to be nutritive but also useful as medicinal herbs. Previous phytochemical investigation of Gynura species showed the presence of hepatotoxic pyrrolizidine alkaloids
Chen, Jian   +7 more
core   +2 more sources

The Chemistry of Kratom [Mitragyna speciosa]: Updated Characterization Data and Methods to Elucidate Indole and Oxindole Alkaloids.

open access: yesJournal of Natural Products, 2020
Two separate commercial products of kratom [Mitragyna speciosa (Korth.) Havil. Rubiaceae] were used to generate reference standards of its indole and oxindole alkaloids.
L. Flores-Bocanegra   +9 more
semanticscholar   +1 more source

Cephalotaxus Alkaloids

open access: yes, 2017
Cephalotaxus alkaloids represent a family of plant secondary metabolites known for 60 years. Significant activity against leukemia in mice was demonstrated for extracts of Cephalotaxus. Cephalotaxine (CET) (1), the major alkaloid of this series was isolated from Cephalotaxus drupacea species by Paudler in 1963.
Pérard-Viret, Joelle   +4 more
openaire   +3 more sources

A Comprehensive Description of the Anatomy and Histochemistry of Psychotria capillacea (Müll. Arg.) Standl. and an Investigation into Its Anti-Inflammatory Effects in Mice and Role in Scopolamine-Induced Memory Impairment

open access: yesPharmaceuticals
Species of the genus Psychotria are used in popular medicine for pain, inflammatory symptoms, and mental disorders. Psychotria capillacea (Müll. Arg.) Standl.
Anelise Samara Nazari Formagio   +11 more
doaj   +1 more source

Pyrrolizidine-Derived Alkaloids: Highly Toxic Components in the Seeds of Crotalaria cleomifolia Used in Popular Beverages in Madagascar

open access: yesMolecules, 2021
Seeds of Crotalaria cleomifolia (Fabaceae) are consumed in Madagascar in preparation of popular beverages. The investigation of extracts from the seeds of this species revealed the presence of high amounts of alkaloids from which two pyrrolizidine ...
Anjaramampionona Henintsoa Duvale Solofomalala   +6 more
doaj   +1 more source

Identification of “Kratom” (Mitragyna speciosa) Alkaloids in Commercially Available Products [PDF]

open access: yes, 2017
“Kratom” is the common name for the botanical mitragyna speciosa. It is a tree native to Southeast Asia in which leaves contain the psychoactive alkaloids mitragynine and 7-hydroxymitragynine. Kratom is often ingested as teas, chewed, or smoked.
Grzymkowski, Julia   +2 more
core   +1 more source

Chemoenzymatic Synthesis of Triazololactams Structurally Related to Pancratistatin [PDF]

open access: yes, 2017
Four tricyclic lactams that structurally resemble alkaloids with the pancratistatin skeleton were synthetized from bromobenzene by a chemoenzymatic strategy.
Bastida   +48 more
core   +1 more source

Pyrrolizidine alkaloids

open access: yesNat. Prod. Rep., 2014
This review focuses on the isolation and synthesis of natural products containing a 1-azabicyclo[3.3.0]octane core (July 2001 to December 2012).
Robertson, J, Stevens, K
openaire   +3 more sources

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