Results 161 to 170 of about 287,843 (358)

Vinpocetine Overcomes Paclitaxel Resistance in a Triple‐Negative Breast Cancer Cell Line

Cell Biology International, EarlyView.
ABSTRACT Paclitaxel is a first‐line treatment for triple‐negative breast cancer (TNBC), but its efficacy is commonly limited by tumor‐cell resistance. Vinpocetine is a well‐tolerated dietary supplement with pleiotropic cellular effects, including potential anti‐tumor activity.
Hsiao‐Hui Kuo, Chien‐Wei Huang, Wei‐Rou Chiang, Ling‐Huei Yih   +3 more
wiley   +1 more source

On Colchicine-Induced Polyploid Lobelia (L. inflata Linn) with Special Reference to the Content of Alkaloids

, 1951
Toyohiko Kawatani, Tadaro Ohno, Izumi Imaseki   +2 more
openalex   +2 more sources

VI.—On an alkaloid from Cinchona bark hitherto undescribed [PDF]

, 1871
David Howard
openalex   +1 more source

Cobalamin‐Dependent Aryl Methyl Ether O‐Demethylases: Promising Enzymes for Biocatalytic Applications from Lignin Valorization to Organic Synthesis

ChemCatChem, EarlyView.
Cobalamin‐dependent aryl methyl ether O‐demethylases have high potential for biocatalytic applications, including lignin valorization and synthetic chemistry. In this review, we provide a detailed overview of such O‐demethylase systems identified to date from various microorganisms, including their mechanism, substrate scope and selectivity, and ...
Niels Krabbe Johnsen, Santipap Chaiyasarn, Zheng Guo, Jaehong Han, Bekir Engin Eser   +4 more
wiley   +1 more source

An Antimalarial Alkaloid from Hydrangea

, 1952
Redginal Hewitt, Wyeth S. Wallace, Edna R. Gill, James H. Williams   +3 more
openalex   +1 more source

Imidazoline‐Proline and Imidazoline‐Prolinate Ligands for Copper‐Catalyzed Asymmetric Exo‐Selective [3 + 2] Cycloaddition of Iminoesters with Nitroalkenes

ChemistryEurope, EarlyView.
From a modular synthesis of nonphosphine chiral nitrogen‐based chiral imidazoline–amino acid ligands, two new chiral imidazoline–proline‐copper catalysts are developed for targeting exo‐selective [3 + 2] cycloaddition reaction. Density functional theory studies rationalize the observed stereoselectivity and the distinct chiral pockets of the two ...
Yan Yu, Takuya Shimada, Chihiro Tokumitsu, Ayaka Fujiwara, Takayoshi Arai   +4 more
wiley   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

, 2022
Hepatology, EarlyView.
Robert J. Fontana, Iris Liou, Adrian Reuben, Ayako Suzuki, M. Isabel Fiel, William Lee, Victor Navarro   +6 more
wiley   +1 more source

The physiological action of the alkaloids derived from Anhalonium Lewinii

, 1899
W. E. Dixon
openalex   +2 more sources

Dietary Berberine Reduced Oxido‐Inflammatory Stress in Rats' Livers and Kidneys, Supplemented from Prepuberty to Adulthood

ChemFoodChem, EarlyView.
Berberine (BER) demonstrates significant protective effects on the hepatorenal system in rats, mediated through various cellular and molecular mechanisms spanning from the prepubertal stage through adulthood. These mechanisms encompass antioxidant, anti‐inflammatory, and anti‐apoptotic activities, in addition to modulation of essential signalling ...
Solomon Owumi, Bayode Oluwawibe, Harieme Agbarogi, Moses T. Otunla, Uche Arunsi, Jesutosin O. Babalola, Chioma Irozuru, Chima Amadi, Ahmad Altayyar   +8 more
wiley   +1 more source

Alkaloid biosynthesis in medicinal crop kratom (<i>Mitragyna speciosa</i>) varies with postharvest, genetic, and seasonal factors. [PDF]

Front Plant Sci
Zhang M, Lyndon A, Kanumuri SRR, Sharma A, Pearson BJ, McCurdy CR, Chen J.   +6 more
europepmc   +1 more source