Results 91 to 100 of about 11,247 (220)

In silico Investigation of the Anticancer Activity of Natural Isoquinoline Alkaloids Targeting the Monoamine Oxidase a Enzyme

open access: yesAUIQ Complementary Biological System
Monoamine oxidase A (MAO-A) has recently been identified as a candidate for cancer therapy due to its roles in tumor development and growth. Conventional approaches for the discovery of MAO-A inhibitors are both costly and time-consuming.
Reham A.Al-Anssari   +3 more
doaj   +1 more source

Isoquinoline Alkaloids and Homoisoflavonoids from Bak and Bak

open access: yesNatural Product Communications, 2008
The powdered bulbs and leaves of Drimiopsis barteri yielded two novel isoquinoline alkaloids: 5-hydroxy-7,2′,3′,4′-tetramethoxy{2H-1-}benzopyran [4,3-c]isoquinoline and 6-hydroxy-7,2′,3′,4′-tetramethoxy{2H-1-}benzopyran [4,3-c]isoquinoline, three new ...
Dieudonne Ngamga   +7 more
doaj   +1 more source

Nemkovalens kölcsönhatások szerepe biológiai fontosságú vegyületek fényelnyelés hatására végbemenő folyamataiban = Effect of noncovalent interactions on the photoinduced processes of biologically important compounds [PDF]

open access: yes, 2013
Feltártuk, hogy molekulák spontán önszerveződése komplexekké vagy jól definiált sztöchiometriájú aggregátumokká miként befolyásolja a fényelnyelést követő folyamatok kinetikáját és mechanizmusát.
Biczók, László   +2 more
core  

DEHYDROPUNTARENINE AND DEHYDROSAULATINE TO NEW ISOQUINOLINE ALKALOIDS FROM ROOTS OF BERBERIS ACTINACANTHA [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1990
The isolation and characterization of two new isoquinoline alkaloids, Dehydropuntarenine and Dehydrosaulatine, obtained during the column chromatography of an alkaloidal fraction from the roots of B. Actinacantha (Berberidaceae) are described.
doaj  

Cytotoxicity of Naturally Occurring Isoquinoline Alkaloids of Different Structural Types

open access: yesNatural Product Communications, 2016
Forty-six isoquinoline alkaloids, of eleven structural types isolated in our laboratory, have been evaluated for their cytotoxicity against two cancer cell lines (Caco-2 and Hep-G2 cancer cells), as well as against normal human lung fibroblast cells ...
Jakub Chlebek   +9 more
doaj   +1 more source

Extracts from Traditional Chinese Medicinal Plants Inhibit Acetylcholinesterase, a Known Alzheimer’s Disease Target

open access: yesMolecules, 2016
Inhibition of acetylcholinesterase (AChE) is a common treatment for early stages of the most general form of dementia, Alzheimer’s Disease (AD). In this study, methanol, dichloromethane and aqueous crude extracts from 80 Traditional Chinese Medical (TCM)
Dorothea Kaufmann   +4 more
doaj   +1 more source

An Overview of Family Hernandiaceae [PDF]

open access: yes, 2008
Hernandiaceae is a family of higher plants, possessing a large number of bioactive compounds.
Kartekey Pandey   +5 more
core  

Nanoparticle formation of an antimicrobial peptide induced by sulfated β-cyclodextrin: Application to alkaloid encapsulation

open access: yesCarbohydrate Polymer Technologies and Applications
The association of polyanionic β-cyclodextrin (βCD) derivatives with the nonaggregating polycationic antimicrobial peptide Dhvar4 was studied in water at 296 K without a buffer to explore their potential for forming nanoparticles capable of encapsulating
Zsombor Miskolczy   +4 more
doaj   +1 more source

The Elevation of LC-ESI-Q-TOF-MS Response in the Analysis of Isoquinoline Alkaloids from Some Papaveraceae and Berberidaceae Representatives

open access: yesJournal of Analytical Methods in Chemistry, 2017
Twenty-five methanol extracts obtained from various representatives of Papaveraceae and Berberidaceae botanical families (genera: Papaver, Argemone, Eschscholzia, Chelidonium, Glaucium, and Berberis) were screened for their alkaloid content in an ...
Wirginia Kukula-Koch
doaj   +1 more source

Stereochemical studies on protonated bridgehead amines. ^1H NMR determination of cis and trans B-C ring-fused structures for salts of hexahydropyrrolo [2,1-a] isoquinolines and related C ring homologs. Capture of unstable ring-fused structures in the solid state [PDF]

open access: yes, 1989
Acid-addition salts of tricyclic isoquinolines 2a/b, 3a/b, 4a-4c, 5, 6a/b, 7, 8a/b, 9a/b, and 17a/b were studied by high-field ^1H NMR in CDCl_3 solution.
Inners, Ruth R.   +6 more
core  

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