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12 results

Quantitative Analysis of the Flavonoid Content in the Leaves of Boehmeria nivea and Related Commercial Products

Lee DG, Cho S, Lee J, Yang S, Jung YS, Kim HB, Cho EJ, Lee S

  • Nat Prod Sci.
  • 2015 Mar;21(1):66-70.
  • doi: 10.0000/nps.2015.21.1.66
Content analysis of flavonoids (epicatechin, epicatechin gallate, and rutin) present in the leaves of Boehmeria nivea (originating from Geumsan-myeon, Biin-myeon, Hansan-myeon, and Baeksu-eup) and their commercial products (ramie tteok, ramie...
Effects of Cynaroside, Cynarin and Linarin on Secretion, Production and Gene Expression of Airway MUC5AC Mucin in NCI-H292 Cells

Yoon YP, Lee HJ, Kim YH, Luyen BT, Hong JH, Lee CJ

  • Nat Prod Sci.
  • 2015 Mar;21(1):59-65.
  • doi: 10.0000/nps.2015.21.1.59
In this study, we investigated whether cynaroside, cynarin and linarin derived from Chrysanthemum indicum L. affect the secretion, production and gene expression of MUC5AC mucin in airway epithelial cells. Confluent...
The Extract of Limonium tetragonum Protected Liver against Acute Alcohol Toxicity by Enhancing Ethanol Metabolism and Antioxidant Enzyme Activities

Kim NH, Sung SH, Heo JD, Jeong EJ

  • Nat Prod Sci.
  • 2015 Mar;21(1):54-58.
  • doi: 10.0000/nps.2015.21.1.54
The protective effect of EtOAc fraction of Limonium tetragonum extract (EALT) against alcoholinduced hepatotoxicity was assessed following acute ethanol intoxication in Spraque-Dawley rats. EALT (200 mg/kg p.o.) was administrated once...
Anti-Helicobacter pylori Compounds from Maackia amurensis

Park WS, Bae JY, Kim HJ, Kim MG, Lee WK, Kang HL, Baik SC, Lim KM, Lee MK, Ahn MJ

  • Nat Prod Sci.
  • 2015 Mar;21(1):49-53.
  • doi: 10.0000/nps.2015.21.1.49
Eight isoflavonoid compounds were isolated from the EtOAc fraction of Maackia amurensis which had shown the highest anti-Helicobacter pylori activity among the fractions, using medium pressure liquid chromatography and recrystallization....
Phytochemical Analysis of the Phenolic Fat-Suppressing Substances in the Leaves of Lactuca raddeana in 3T3-L1 Adipocytes

Nugroho A, Choi JS, An HJ, Park HJ

  • Nat Prod Sci.
  • 2015 Mar;21(1):42-48.
  • doi: 10.0000/nps.2015.21.1.42
Lactuca raddeana (Compositae) is used to treat obesity and complications due to diabetes. The five phenolic compounds including chlorogenic acid, chicoric acid, luteolin 7-O-glucoside, luteolin 7-O-glucuronide, luteolin were qualitatively identified...
A 14-Day Repeated Dose Toxicity of Epimedii Herba Aqueous Extract Administered by Oral Gavage in F344 Rats

Han HY, Yang YS, Kim SN, Han SC, Han KH, Lee JH, Jeong JY, Roh HS, Seok JH, Kim JA, Min BS

  • Nat Prod Sci.
  • 2015 Mar;21(1):34-41.
  • doi: 10.0000/nps.2015.21.1.34
The objective of this study is to characterize a toxicity of Epimedii Herba (EH) in F344 rats and to find a dose levels for the 13 weeks toxicity study. EH...
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

  • Nat Prod Sci.
  • 2015 Mar;21(1):30-33.
  • doi: 10.0000/nps.2015.21.1.30
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,...
Isolation and Structure Determination of an Imidazo-pyrimidine, 5-Chlorocavernicolin, Maleimide oximes and Nucleosides from a Marine Sponge Extract

Kulkarni R, Kim JH, Kim YH, Oh S, Na M

  • Nat Prod Sci.
  • 2015 Mar;21(1):25-29.
  • doi: 10.0000/nps.2015.21.1.25
In a continuation of our studies to discover bioactive secondary metabolites from marine sources, we further investigated samples from a tryptamine and phenyl-alkane producing sponge, which resulted in the isolation...
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

  • Nat Prod Sci.
  • 2015 Mar;21(1):20-24.
  • doi: 10.0000/nps.2015.21.1.20
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...
Variation of the Contents of Triterpenoids and Tannins Depending on Growth and Infection in the Leaves of Rubus crataegifolius and Rubus parvifolius

Kim MY, Rhim TJ, Lim SC, Park HJ

  • Nat Prod Sci.
  • 2015 Mar;21(1):14-19.
  • doi: 10.0000/nps.2015.21.1.14
Several 19alpha-hydroxyursane-type triterpenoids and hydrolysable tannins have beneficial effects on human health. Rubus crataegifolius (Rosaceae) has the cleft simple leaf whereas R. parvifolius has pinnate compound leaves. This research was...
Phytochemical Constituents from the Aerial Part of Ducrosia ismaelis Asch

Morgan AM, Kim JH, Lee HW, Lee SH, Lim CH, Jang HD, Kim YH

  • Nat Prod Sci.
  • 2015 Mar;21(1):6-13.
  • doi: 10.0000/nps.2015.21.1.6
Phytochemical investigation of the aerial components of Ducrosia ismaelis Asch. led to the isolation of six known compounds, psoralen (1), isopsoralen (2), cnidioside A (3), (-)-syringaresinol-O-beta-D-glucopyranoside (4), (E)-plicatin B (5),...
Bioactive Constituents from the Leaves of Zanthoxylum schinifolium

Jeong SY, Nguyen PH, Zhao BT, Min BS, Ma ES, Woo MH

  • Nat Prod Sci.
  • 2015 Mar;21(1):1-5.
  • doi: 10.0000/nps.2015.21.1.1
Activity-guided separation of the methylene chloride-soluble fraction of the leaves of Zanthoxylum schinifolium, resulted in the isolation of four coumarinoids (1 - 4), two triterpenoids (5, 6) and three fatty...

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