Results 31 to 40 of about 435,947 (354)

The Main Alkaloids in Uncaria rhynchophylla and Their Anti-Alzheimer’s Disease Mechanism Determined by a Network Pharmacology Approach

open access: yesInternational Journal of Molecular Sciences, 2021
Alzheimer’s disease (AD) is a growing concern in modern society, and effective drugs for its treatment are lacking. Uncaria rhynchophylla (UR) and its main alkaloids have been studied to treat neurodegenerative diseases such as AD.
Peng Zeng   +4 more
semanticscholar   +1 more source

Antimicrobial Activity of Polyphenols and Alkaloids in Middle Eastern Plants

open access: yesFrontiers in Microbiology, 2019
Antibiotic-resistant microorganisms have been an ever-growing concern over the past years. This has led researchers to direct their attention onto plants to be able to discover new possible antimicrobial compounds.
L. Othman, A. Sleiman, R. Abdel-Massih
semanticscholar   +1 more source

Exploring the Phytochemical Landscape of the Early-Diverging Flowering Plant Amborella trichopoda Baill. [PDF]

open access: yes, 2019
Although the evolutionary significance of the early-diverging flowering plant Amborella (Amborella trichopoda Baill.) is widely recognized, its metabolic landscape, particularly specialized metabolites, is currently underexplored.
Chang, Lijing   +3 more
core   +1 more source

The Relationship between Structurally Different Pyrrolizidine Alkaloids and Western Flower Thrips Resistance in F2 Hybrids of Jacobaea vulgaros and Jacobaea aquatica [PDF]

open access: yes, 2011
Segregating plant hybrids often have more ecological and molecular variability compared to parental species, and are therefore useful for studying relationships between different traits, and the adaptive significance of trait variation.
Cheng, D.   +4 more
core   +4 more sources

Biologically active isoquinoline alkaloids covering 2014–2018

open access: yesMedicinal research reviews (Print), 2020
Isoquinoline alkaloids, an important class of N‐based heterocyclic compounds, have attracted considerable attention from researchers worldwide since the early 19th century.
Xiao-fei Shang   +10 more
semanticscholar   +1 more source

Determination of the Total Alkaloid Content of Thermopsis Dry Extract by HPTLC-Densitometry

open access: yesРегуляторные исследования и экспертиза лекарственных средств, 2023
When used to quantify alkaloids in thermopsis dry extract, acidimetric titration has several limitations, including insufficient specificity of the method and arbitrary selection of a titration endpoint. Different parts of the Thermopsis lanceolata plant
I. M. Morgunov   +4 more
doaj   +1 more source

Selection of an optimal method for screening the collection of narrow-leaved lupine held by the Vavilov Institute for the qualitative and quantitative composition of seed alkaloids

open access: yesВавиловский журнал генетики и селекции, 2020
Narrow-leaved lupine (Lupinus аngustifolius L.) is a widely cultivated leguminous forage and green manure crop with a potential for human nutrition. However, the presence of secondary metabolites – alkaloids – in lupine seeds considerably affects the ...
A. V. Kushnareva   +7 more
doaj   +1 more source

Phytochemical characterization of Tabernanthe iboga root bark and its effects on dysfunctional metabolism and cognitive performance in high-fat-fed C57BL/6J mice [PDF]

open access: yes, 2018
Preparations of the root bark of Tabernanthe iboga have long been used in Central and West African traditional medicine to combat fatigue, as a neuro-stimulant in rituals, and for treatment of diabetes. The principal alkaloid of T.
Akinyeke, Tunde   +11 more
core   +2 more sources

A yeast platform for high-level synthesis of tetrahydroisoquinoline alkaloids

open access: yesNature Communications, 2020
The tetrahydroisoquinoline (THIQ) moiety is a privileged substructure of many bioactive natural products and semi-synthetic analogs. Plants manufacture more than 3,000 THIQ alkaloids, including the opioids morphine and codeine.
Michael E. Pyne   +7 more
semanticscholar   +1 more source

Alkaloids from Plants with Antimalarial Activity: A Review of Recent Studies

open access: yesEvidence-Based Complementary and Alternative Medicine, 2020
Malaria is one of the major health problems in developing countries. The disease kills a large number of people every year and also affects financial status of many countries.
P. Uzor
semanticscholar   +1 more source

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