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HPTLC Combined with sHetCA and Multivariate Statistics for the Detection of Bioactive Compounds in Complex Mixtures.
Molecules
December 2024
Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
High-Performance Thin Layer Chromatography (HPTLC) is widely utilized in natural products research due to its simplicity, low cost, and short total analysis time, including data treatment. While bioautography can be used for rapid detection of bioactive compounds in extracts, the number of available bioautographic methods is limited mainly due to the high cost and difficulty in developing protocols that lead to accurate and reproducible results. For this reason, an alternative method for the detection of bioactive compounds in plant extracts prior to their isolation using HPTLC, combined with multivariate chemometrics, was previously explored by our lab.
View Article and Find Full Text PDFThe Antioxidant and Anti-Inflammatory Activities of the Methanolic Extract, Fractions, and Isolated Compounds from Baker f. (Fabaceae).
Molecules
December 2024
Centre for Quality of Health and Living, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9300, South Africa.
Inflammation is a natural body's defense mechanism against harmful stimuli such as pathogens, chemicals, or irradiation. But when the inflammatory response becomes permanent, it can lead to serious health problems. In the present study, the antioxidant and anti-inflammatory potentials of the methanolic extract (EMME), as well as its isolated fractions (FA-FJ) and compounds (-), were evaluated by using in vitro and cellular models.
View Article and Find Full Text PDFImpact of Thermal, High-Pressure, and Pulsed Electric Field Treatments on the Stability and Antioxidant Activity of Phenolic-Rich Apple Pomace Extracts.
Molecules
December 2024
Department of Food Chemistry and Analysis, Institute of Food Technology and Food Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
Apple pomace, a by-product of apple juice production, is typically discarded as waste. Recent approaches have focused on utilizing apple pomace by extracting beneficial bioactive compounds, such as antioxidant phenolic compounds (PCs). Before these PC-rich extracts can be used in food products, they must undergo food preservation and processing methods.
View Article and Find Full Text PDFBioassay-Guided Isolation and Identification of Antibacterial Compounds from Invasive Tree of Heaven Stem and Trunk Bark.
Molecules
December 2024
Plant Protection Institute, HUN-REN Centre for Agricultural Research, Fehérvári út 132-144, 1116 Budapest, Hungary.
Flash column chromatographic fractionation of tree of heaven () stem and trunk bark extracts, guided by thin-layer chromatography (TLC)- assay and TLC-heated electrospray high-resolution tandem mass spectrometry (HESI-HRMS/MS), lead to the isolation of six known compounds: (9,11)-13-hydroxy-9,11-octadecadienoic acid (13-HODE, ), (10,12)-9-hydroxy-10,12-octadecadienoic acid (9-HODE, ), hexadecanedioic acid (thapsic acid, ), 16-hydroxyhexadecanoic acid (juniperic acid, ), 16-feruloyloxypalmitic acid (alpinagalanate, ), and canthin-6-one (). Their structures were elucidated by HESI-HRMS/MS and one- and two-dimensional nuclear magnetic resonance (NMR) spectroscopy. This is the first study identifying - in tree.
View Article and Find Full Text PDFMetachromatic Leukodystrophy in Morocco: Identification of Causative Variants by Next-Generation Sequencing (NGS).
Genes (Basel)
November 2024
Servicio de Genética, Hospital Universitario Ramón y Cajal, IRYCIS, 28034 Madrid, Spain.
(1) Background: Most rare disease patients endure long delays in obtaining a correct diagnosis, the so-called "diagnostic odyssey", due to a combination of the rarity of their disorder and the lack of awareness of rare diseases among both primary care professionals and specialists. Next-generation sequencing (NGS) techniques that target genes underlying diverse phenotypic traits or groups of diseases are helping reduce these delays; (2) Methods: We used a combination of biochemical (thin-layer chromatography and high-performance liquid chromatography-tandem mass spectrometry), NGS (resequencing gene panels) and splicing assays to achieve a complete diagnosis of three patients with suspected metachromatic leukodystrophy, a neurologic lysosomal disorder; (3) Results: Affected individuals in each family were homozygotes for harmful variants in the gene, one of them novel (c.854+1dup, in family 1) and the other already described (c.
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