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Prunin from Poncirus trifoliata (L.) Rafin Inhibits Aldose Reductase and Glucose-Fructose-Mediated Protein Glycation and Oxidation of Human Serum Albumin

  • Md Yousof Ali
  • , Gerald W. Zamponi
  • , Qudeer Ahmed Abdul
  • , Su Hui Seong
  • , Byung Sun Min
  • , Hyun Ah Jung*
  • , Jae Sue Choi*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

Diabetes complications are associated with aldose reductase (AR) and advanced glycation end products (AGEs). Using bioassay-guided isolation by column chromatography, 10 flavonoids and one coumarin were isolated from Poncirus trifoliata Rafin and tested in vitro for an inhibitory effect against human recombinant AR (HRAR) and rat lens AR (RLAR). Prunin, narirutin, and naringin inhibited RLAR (IC50 0.48-2.84 μM) and HRAR (IC50 0.68-4.88 μM). Docking simulations predicted negative binding energies and interactions with the RLAR and HRAR binding pocket residues. Prunin (0.1 and 12.5 μM) prevented the formation of fluorescent AGEs and nonfluorescent Nϵ-(carboxymethyl) lysine (CML), as well as the fructose-glucose-mediated protein glycation and oxidation of human serum albumin (HSA). Prunin suppressed the formation of the β-cross-amyloid structure of HSA. These results indicate that prunin inhibits oxidation-dependent protein damage, AGE formation, and AR, which may help prevent diabetes complications.

Original languageEnglish
Pages (from-to)7203-7218
Number of pages16
JournalJournal of Agricultural and Food Chemistry
Volume72
Issue number13
DOIs
StatePublished - 2024.04.3

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • AGEs
  • aldose reductase
  • diabetic complications
  • flavonoids
  • Poncirus trifoliata (L.) Rafin
  • protein glycation
  • prunin

Quacquarelli Symonds(QS) Subject Topics

  • Agriculture & Forestry
  • Chemistry

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