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Pàgina 1 des de 17 resultats
Ligand fishing from Dioscorea nipponica extract using human serum albumin functionalized magnetic nanoparticles.
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Dioscorea nipponica and the preparations made from it have been used for long to prevent and treat coronary heart disease in traditional Chinese medicine. A group of steroidal saponins present in the plant are believed to be the active ingredients. It has been a challenge to study the individual
Rapid probe and isolation of bioactive compounds from Dioscorea panthaica using human serum albumin functionalized magnetic nano-particles (HSA-MNPs)-based ligand fishing coupled with electrospray ionization mass spectrometry.
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The chemical diversity of secondary metabolites in medicinal plant makes it a huge challenge to isolate the bioactive compounds from herbal extracts, so quick recognition of the bioactive ones is of vital importance for improving the efficiency of isolation. In this study, a ligand fishing
The Spectroscopy Study of the Binding of an Active Ingredient of Dioscorea Species with Bovine Serum Albumin with or without Co(2+) or Zn(2+).
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Diosgenin (DIO) is the active ingredient of Dioscorea species. The interaction of DIO with bovine serum albumin (BSA) was investigated through spectroscopic methods under simulated physiological conditions. The fluorescence quenching data revealed that the binding of DIO to BSA without or with
Renal and Hepatic Function in Hypercholesterolemic Rats Fed Jamaican Bitter Yam (Dioscorea polygonoides).
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BACKGROUND
We reported that Jamaican bitter yam (Dioscorea polygonoides) has antilipemic potential in rats; however there is limited data on the toxicological profile of the yam. We therefore investigated the effects of bitter yam consumption for 6 or 12 weeks on renal and hepatic function in rats
Development of Polyclonal Antibodies for Detection of Diosbulbin B-Derived cis-Enedial Protein Adducts.
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Diosbulbin B (DSB), a major component of herbal medicine Dioscorea bulbifera L. (DB), can be metabolized to an electrophilic intermediate, DSB-derived cis-enedial (DDE). DDE was suggested to contribute to the hepatotoxicity observed in experimental animals and humans after their exposure to DSB. Our
Characterization of yam bean (Pachyrhizus erosus) proteins.
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Seed proteins from Mexican yam bean seeds (Pachyrhizus erosus L.) were sequentially extracted according to the Osborne classification. Albumins were the major fraction (52.1-31.0%), followed by globulins (30.7-27.5%). The minor protein fraction was prolamins (0.8%). Defatting with
[Orienting toxicologic studies in Wistar rats for the evaluation of knotgrass--(Polygonum convolvulus)--seed].
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Black bindweed seed (Polygonum convolvulus) from the 1987 harvest was tested for possible toxicity in a 38-day range-finding test with Wistar rats which received feed rations on the basis of VDT-1 standard feedstuff and components of 5 or 20%. Histological liver findings as well as parameters
Both dioscorin, the tuber storage protein of yam (Dioscorea alata cv. Tainong No. 1), and its peptic hydrolysates exhibited angiotensin converting enzyme inhibitory activities.
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Dioscorin, the tuber storage protein of yam (Dioscorea alata cv. Tainong No. 1), was purified to homogeneity by DE-52 ion-exchange chromatography. This purified dioscorin was shown by spectrophotometric methods to inhibit angiotensin converting enzyme (ACE) in a dose-dependent manner (12.5-750
One- and two-dimensional gel electrophoresic identification of African yam bean seed proteins.
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Seed proteins were extracted from the African yam bean (AYB; Sphenostylis stenocarpa), an underutilized West African food legume. One- and two-dimensional polyacrylamide gel electrophoresis was then used to analyze the albumin fraction, galactose-specific lectins purified on immobilized
Effects of a rhizome extract of Dioscorea batatas and its bioactive compound, allantoin in high fat diet and streptozotocin-induced diabetic mice and the regulation of liver, pancreas and skeletal muscle dysfunction.
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Antioxidant and antiglycation activities of the synthesised dipeptide, Asn-Trp, derived from computer-aided simulation of yam dioscorin hydrolysis and its analogue, Gln-Trp.
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Previous studies have shown that the Trp residue contributes to a high oxygen radical absorbance capacity (ORAC). Therefore, in this study, a Trp-containing dipeptide derived from a computer-aided simulation of pepsin hydrolysis of the yam tuber, dioscorin-namely, Asn-Trp (NW), and its analogue,
Preoperative bone mineral density in gastric cancer patients.
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OBJECTIVE
It has been reported that there is a high rate of bone mineral density (BMD) loss after gastrectomy for gastric cancer. To clarify the course of postoperative BMD loss, it is necessary to precisely determine the preoperative BMD of gastric cancer patients.
METHODS
From October 2005 through
Antidiabetic activity of ethanolic extract of tubers of Dioscorea alata in alloxan induced diabetic rats.
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OBJECTIVE
To evaluate the antidiabetic activity of ethanolic extract of Dioscorea alata in glucose loaded and alloxan induced diabetic rats.
METHODS
The authenticated tubers of D. alata (DA) (JSSCPDP/2008/157) were collected from Dharmapuri, Tamil Nadu. The ethanol extract was tested for
Anti-hepatic fibrosis effects of a novel turtle shell decoction by inhibiting hepatic stellate cell proliferation and blocking TGF-β1/Smad signaling pathway in rats.
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Hepatic fibrosis (HF), a wound-healing response to a variety of chronic stimuli, is characterized by the excessive synthesis of extracellular matrix (ECM) proteins by hepatic stellate cells (HSC) and eventually the development of hepatic cirrhosis. Turtle shell pill (TSP) is a common traditional
Determination of diosgenin content in medicinal plants with enzyme-linked immunosorbent assay.
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Many medicinal plants contain diosgenin, which has a significant medicinal value. However, there is currently no effective and rapid analytical method to determine the diosgenin content of plants or products. In the present work we have developed an indirect competitive enzyme-linked immunosorbent
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