Wall. ex G. Don, an unexplored medicinal plant belonging to the family Berberidaceae, is a large deciduous shrub found in Western Himalaya between 1800-3000 m. Chemical profiling of fruit, leaf, root and stem was done by direct analysis in real time mass spectrometry followed by multivariate analysis for discrimination among the plant parts. The bioactive compounds, including magnoflorine, berberine, jatrorrhizine, thalifendine/berberrubine, demethyleneberberine, reticuline, 8-oxoberberine, N-methyltetrahydroberberine, tetrahydropalmatine, tetrahydroberberine and palmatine, were identified by their exact mass measurement and the corresponding molecular formula of each compound. A comparative study of distribution pattern for all these bioactive alkaloids showed qualitative and quantitative variations in different parts of Principal component analysis clearly discriminated each part of plant.
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http://dx.doi.org/10.1016/j.jpha.2015.05.002 | DOI Listing |
Chem Biodivers
January 2025
Liverpool John Moores University, Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Byrom Street, Liverpool, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
Diospyros discolor Willd., commonly known as Velvet apple or Mabolo, is an underutilized fruit. Traditionally, various parts of D.
View Article and Find Full Text PDFJ Nat Med
January 2025
Department of Endocrinology, Cangzhou Central Hospital, No. 16 West Xinhua Road, Cangzhou, 061000, Hebei, China.
Thioredoxin-interacting protein (TXNIP), as a pivotal protein in the cellular stress response, plays a significant role in the progression of diabetic nephropathy (DN). Consequently, therapeutic strategies aimed at targeting TXNIP may offer novel interventions for patients with DN. Our study is to explore the therapeutic potential of targeting TXNIP in mitigating renal tubular injury induced by hyperglycemia.
View Article and Find Full Text PDFOrg Biomol Chem
January 2025
College of Chemistry, Xiangtan University, Xiangtan 411105, China.
Isoxazolidines are structurally important scaffolds in many natural products and bioactive compounds. Herein, we report a novel synthetic method for isoxazolidine derivatives through visible-light-induced photoredox cascade cyclization of nitroarenes with triethylamine under aerobic conditions. The resultant 5-hydroxyl isoxazolidine compounds were generally obtained in moderate yields with a broad range of compatible functionalities.
View Article and Find Full Text PDFNat Prod Res
January 2025
School of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, P.R. China.
Two new chromones, oleracone H () and oleracone I (), were isolated from L. and identified by UV, IR, UHPLC-ESI-QTOF/MS, 1D NMR, 2D NMR, and CD spectra. In 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical quenching assay, oleracone H () and oleracone I () presented scavenging activities with IC values (half maximal inhibitory concentration) of 16.
View Article and Find Full Text PDFHeliyon
November 2024
Institute of Cell Biology and Biophysics, Department of Cell Biology, Leibniz University Hannover, 30419, Hannover, Germany.
Fungal specialized metabolites are known for their potent biological activities, among which tropolone sesquiterpenoids (TS) stand out for their diverse bioactivities. Here, we report cytotoxic and proliferation inhibitory effects of the recently discovered TS compounds 4-hydroxyxenovulene B and 4-dihydroxy norpycnidione, and the structurally related 4-hydroxy norxenovulene B and xenovulene B. Inhibition of metabolic activity after TS treatment was observed in Jurkat, PC-3 and FAIK3-5 cells, whereas MDA-MB-231 cells were unresponsive to treatment.
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