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Isolation of Phytochemicals from Salvia plebeia Using Countercurrent Chromatography Coupled with Reversed-phase HPLC

Kil HW, Rho T, Seo YJ, Yu A, Yoon KD

Salvia plebeia R. Br. is a plant which has been used as an edible crop and traditional medicine in Asian countries. In this study, HPLC-PDA analysis and countercurrent chromatography (CCC)...
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A New Coumestan Glucoside from Eclipta prostrata

Seo YJ, Kil HW, Rho T, Yoon KD

Eclipta prostrata is an annual herb, belonging to Asteraceae family, and has been traditionally used to improve immunity and treat hepatitis and bacterial disease in Korea. In this study, a...
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An Exploration of the Oryza sativa L. Cyanidin-3-glucoside on the Cognitive Function in Older Adults with Subjective Memory Impairment

Joo SH, Hahn C, Lim HK, Yoon KD, Yoon SH, Lee CU

OBJECTIVE: Cyanidin-3-glucoside (C3G), is a component of anthocyanin, have been considered to positively influence cognition and be beneficial for the prevention and treatment of dementia. We aimed to assess the...
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Black Rice (Oryza sativa L., Poaceae) Extract Reduces Hippocampal Neuronal Cell Death Induced by Transient Global Cerebral Ischemia in Mice

Hwang SN, Kim JC, Bhuiyan MI, Kim JY, Yang JS, Yoon SH, Yoon KD, Kim SY

Rice is the most commonly consumed grain in the world. Black rice has been suggested to contain various bioactive compounds including anthocyanin antioxidants. There is currently little information about the...
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Efficient Isolation of Dihydrophaseic acid 3′-O-β-D-Glucopyranoside from Nelumbo nucifera Seeds Using High-performance Countercurrent Chromatography and Reverse-phased High-performance Liquid Chromatography

Rho T, Yoon KD

High-performance countercurrent chromatography (HPCCC) coupled with reversed-phase high-performance liquid chromatography (RP-HPLC) method was developed to isolate dihydrophaseic acid 3′-O-β-D-glucopyranoside (DHPAG) from the extract of Nelumbo nucifera seeds. Enriched DHPAG sample...
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Cyanidin-3-glucoside inhibits amyloid β₂₅₋₃₅-induced neuronal cell death in cultured rat hippocampal neurons

Yang JS, Jeon S, Yoon KD, Yoon SH

Increasing evidence implicates changes in [Ca²⁺]i and oxidative stress as causative factors in amyloid beta (Aβ)-induced neuronal cell death. Cyanidin-3-glucoside (C3G), a component of anthocyanin, has been reported to protect...
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Chemical Constituents of Nelumbo nucifera Seeds

Rho T, Yoon KD

The phytochemical study for the extract of Nelumbo nucifera (Nymphaceae) seeds has led to the isolation of ten compounds including five simple phenolic compounds, two indole derivatives, a flavonoid glycoside,...
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Phenolic Compounds and Triterpenes from the Barks of Diospyros burmanica

Choi J, Cho JY, Kim YD, Htwe KM, Lee WS, Lee JC, Kim J, Yoon KD

Diospyros burmanica Kurz. is an evergreen deciduous tree distributed in Mandalay of Myanmar, which belongs to the family of Ebenaceae. In Myanmar, it has been used to treat diarrhea, diabetes,...
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Rapid Isolation of Cyanidin 3-Glucoside and Peonidin 3-Glucoside from Black Rice (Oryza sativa) Using High-Performance Countercurrent Chromatography and Reversed-Phase Column Chromatography

Jeon H, Choi J, Choi SJ, Lee CU, Yoon SH, Kim J, Yoon KD

Anthocyanins are water soluble plant pigments which are responsible for the blue, red, pink, violet colors in several plant organs such as flowers, fruits, leaves and roots. In recent years,...
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Isolation And Development Of Quantification Method For Cyanidin-3-glucoside And Cyanidin-3-rutinoside In Mulberry Fruit By High-performance Countercurrent Chromatography And High-performance Liquid Chromatography

Choi SJ, Jeon H, Lee CU, Yoon SH, Bae SK, Chin YW, Yoon KD

Cyanidin-3-glucoside (C3G) and cyanidin-3-rutinoside (C3R) were isolated by high-performance countercurrent chromatography (HPCCC) using a two-phase solvent system composed of tert-butyl methyl ether/n-butanol/acetonitrile/water/trifluoroacetic acid (1 : 3 : 1 : 5...
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Comparative Analysis of Interlocking IM Nailing and LC-DCP fixation in the Treatment of Distal Tibial Fracture

Na HY, Park YJ, Ko SH, Choe WS, Lee YS, Yoon KD

PURPOSE: To compare the clinical results between interlocking IM nailing and LC-DCP fixation in the treatment of distal tibial shaft fracture. MATERIALS AND METHODS: From August 1998 to August 2001, 23...
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Expression of Heat Shock Protein 27 in Human Chondrocytes Confers Resistance to Apoptosis

Na HY, Kim YT, Chang JS, Park JH, Kim JH, Yoon KD, Jung YY, Kim WS

  • KMID: 2105816
  • J Korean Orthop Assoc.
  • 2002 Feb;37(1):131-136.
PURPOSE: This study was designed to examine whether human articular chondrocytes express heat shock protein 27 (hsp27) and to evaluate the relation between hsp27 and the apoptosis of chondrocytes. MATERIALS AND...
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