Ginseng extract modified by pectin lyase inhibits retinal vascular injury and blood-retinal barrier breakage in a rat model of diabetes

  • Eunsoo Jung
  • , Chan Sik Kim
  • , Wookwon Jung
  • , Su Bin Park
  • , Mi Kyung Pyo
  • , Junghyun Kim*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

GS-E3D is an enzymatically modified ginseng extract by pectin lyase. In this study, we evaluated the preventive effects of GS-E3D on blood-retinal barrier (BRB) leakage in a rat model of diabetes. To produce diabetes, rats were injected with streptozotocin. GS-E3D was orally gavaged at 25, 50, and 100 mg/kg body weight for 6 weeks. We then compared the effect of GS-E3D with that of an unmodified ginseng extract (UGE) on retinal vascular leakage. The administration of GS-E3D significantly blocked diabetes-induced BRB breakdown. Immunofluorescence staining showed that GS-E3D reduced the loss of occludin in diabetic rats. In TUNEL staining, the number of apoptotic retinal microvascular cells was dose dependently decreased by GS-E3D treatment. GS-E3D decreased the accumulations of advanced glycation end products in the retinal vessels. In addition, the inhibition potential of GS-E3D on BRB breakage was stronger compared with UGE. These results indicate that GS-E3D could be a beneficial treatment option for preventing diabetes-induced retinal vascular injury.

Original languageEnglish
Pages (from-to)337-343
Number of pages7
JournalJournal of Medicinal Food
Volume22
Issue number4
DOIs
StatePublished - 2019.04

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

  • blood-retinal barrier
  • diabetic retinopathy
  • GS-E3D
  • kwon

Quacquarelli Symonds(QS) Subject Topics

  • Nursing
  • Medicine

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