One new prenyl flavanone (), (2)-8-prenyl-5,6-dihydroxy-7-methoxyflavanone, and one new diarylbutanol (), (7')-3'-hydroxy-linderagatin-A, were isolated from the stem bark of (Annonaceae), along with five known compounds, eriodictyol (), quercetin (), paprazine (), --caffeoyltyramine (), and --feruloyltyramine (). Their structures were determined through extensive spectroscopic analyses and comparison with the literature. The -glucosidase inhibitory potential of was evaluated. Compound showed the highest inhibitory activity against -glucosidase and exhibited superior potency compared to the positive control, with an IC value of 0.12 M.
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http://dx.doi.org/10.1080/14786419.2023.2272024 | DOI Listing |
Heliyon
January 2025
Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 46300, Bangi, Selangor, Malaysia.
The Fabaceae family, particularly genus , is renowned for significant medicinal properties. These plants have been used as natural remedies to address various health issues and are rich in flavonoids. Therefore, this review aimed to provide a comprehensive overview of antibacterial activity, structure-activity relationship, especially against drug-resistance and mode of action for flavonoids isolated from .
View Article and Find Full Text PDFChem Biol Interact
January 2025
Department of Food Science and Biotechnology, Andong National University, Andong, 36729, Republic of Korea. Electronic address:
Prenylation, which involves the addition of hydrophobic molecules, is considered to enhance the bioavailability and biological activity of flavonoids. However, the effect of prenylation on the estrogenic activity of flavonoids with different structures remains unclear. This study evaluated the estrogen receptor-α (ER-α) agonistic and antagonistic activities of estrogenic flavonoids in both unprenylated and prenylated forms using OECD standardized in vitro ER-α transactivation assay and in vivo uterine hypertrophy assay.
View Article and Find Full Text PDFInt J Mol Sci
September 2024
Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wroclaw, Poland.
Xanthohumol () is a major prenylated flavonoid in hops ( L.) which exhibits a broad spectrum of health-promoting and therapeutic activities, including anti-inflammatory, antioxidant, antimicrobial, and anticancer effects. However, due to its lipophilic nature, it is poorly soluble in water and barely absorbed from the gastrointestinal tract, which greatly limits its therapeutic potential.
View Article and Find Full Text PDFFitoterapia
December 2024
Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via D. Montesano 49, 80131 Napoli, Italy.
Plant natural products offer promise in combating multi-drug resistance by acting as antibacterial agents through various mechanisms. A metabolomic-guided phytochemical investigation, based on a LC-HRMS/MS and Molecular Networking combined approach, was carried out on an extract of M. alba L.
View Article and Find Full Text PDFChem Biodivers
December 2024
Hormones Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Dokki, Egypt.
This study aimed to prepare defatted ethanol extract of Abelmoschus esculentus leaves, Morus nigra leaves and Punica granatum peel, to identify the chemical composition of these extracts and to explore their efficacy in counteracting diabetic neuropathy. LC-ESI-MS spectrometry was the hyphenated tool for component identification of these extracts. Behavioral, biochemical, and histopathological investigations were carried out after treatments of diabetic rats.
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