Abstract:
The present invention relates to a composition for protecting liver, specifically a composition for protecting liver containing a specific compound. The composition of the present invention inhibits the liver cell death, and reduces the concentration of reactive oxygen species (ROS). The composition of the present invention recovers the contents of glutathione, and cures the liver damage by alcohol. [Reference numerals] (AA) Hepatocyte viability(%); (BB) Control group; (CC) Quercetin; (DD) Formula 3 compound; (EE) Induce oxidative stress; (FF) Formula 4 compound; (GG) Injection and concentration(關M)
Abstract:
PURPOSE: A composition containing extract and portions of southernwood wild plants as an active ingredient is provided to activate quinone reductase which is an indicator enzyme for preventing cancer and to activate an antioxidant response element by including extracts and portions of the southernwood wild plants including Adenocaulon himalaicum or Artemisia dubia. CONSTITUTION: A composition for preventing cancers contains extracts and portions of southernwood wild plants including Adenocaulon himalaicum and Artemisia dubia as an active ingredient. The extracts are obtained by extracting dried Adenocaulon himalaicum or Artemisia dubia using alcohol having a carbon number of 1-4 or a mixed solvent. The portions are n-hexane portions, ethylacetate portions, n-butanol portions, or water portions.
Abstract:
A method for extraction of tectoridin and tectorigenin from the rhizomes of Belamcanda chinensis is provided to reduce the extraction time, improve the extraction yield and enhance environment and human affinity by using only water and ethanol as solvent under high temperature and high pressure. The tectoridin and tectorigenin are extracted from the rhizomes of Belamcanda chinensis through SWE(subcritical water extraction) by heating the rhizomes of Belamcanda chinensis in a mixed solvent containing water and 30-100 vol.% of ethanol to high temperature such as 80 deg. C or more, preferably 80-200 deg. C under high pressure condition such as 1-15 MPa.
Abstract:
A composition comprising an extract of Phyllostachys nigra MUNRO, a fraction thereof or a compound isolated from the fraction is provided to inhibit accumulation of sorbitol, a fundamental cause of nephropathy and neuropathy shown as diabetic complications, by inhibiting aldose reductase, thereby being used as a pharmaceutical composition or a health food for preventing diseases related to the diabetic complications. A method for isolating a compound from Phyllostachys nigra MUNRO comprises the steps of: (a) extracting the Phyllostachys nigra MUNRO with ethanol and filtering the extract; (b) concentrating and freeze-drying the filtrate to obtain an extract; (c) fractionating an ethylacetate layer from the extract using a separation funnel; and (d) subjecting the fraction to silica gel column chromatography using CH2Cl2-MeOH as a solvent to obtain orientin, luteolin 6-C-(6''-O-transcaffeoylglucoside), tricetin 3',4',5'-trimethyl ether 7-O-b-D-glucopyranoside, tricine, p-coumaric acid or cis-coumaric acid. A pharmaceutical composition for preventing or treating diabetic retinopathy, diabetic neuropathy or diabetic nephropathy comprises the obtained compound as an effective ingredient.