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Stranica 1 iz 27 rezultatima
A Comprehensive and System Review for the Pharmacological Mechanism of Action of Rhein, an Active Anthraquinone Ingredient.
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Rhein is a major medicinal ingredient isolated from several traditional Chinese medicines, including Rheum palmatum L., Aloe barbadensis Miller, Cassia angustifolia Vahl., and Polygonum multiflorum Thunb. Rhein has various pharmacological activities, such as anti-inflammatory, antitumor,
Rhein: A Review of Pharmacological Activities.
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Rhein (4, 5-dihydroxyanthraquinone-2-carboxylic acid) is a lipophilic anthraquinone extensively found in medicinal herbs, such as Rheum palmatum L., Cassia tora L., Polygonum multiflorum Thunb., and Aloe barbadensis Miller, which have been used medicinally in China for more than 1,000 years. Its
Interaction of emodin, aloe-emodin, and rhein with human serum albumin: a fluorescence spectroscopic study.
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The interaction of the dihydroxyanthraquinones, emodin (1), aloe-emodin (2), and rhein (3) with human serum albumin (HSA) has been studied through fluorescence spectroscopy. Quenching studies and the association constant of the anthraquinoid compounds 1, 2, and 3 in the presence of HSA were
Simultaneous HPTLC Determination of Rhein and Aloe-emodin in Senna alata Leaves from Thailand and their Commercial Products.
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A high performance thin layer chromatographic (HPTLC) method was developed and validated for simultaneous determination of rhein and aloe-emodin, major anthraquinone constituents, in S. alata leaves. The separation was performed on a silica gel 60 F₂₅₄ HPTLC plate using ethyl acetate: methanol:
[Effects of wine processed Rheum palmatum on tissue distribution of aloe-emodin, rhein and emodin in rats].
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Under the traditional processing theory "wine processing could promote the efficacy", Rhubarb after wine processing could treat the upper energizer diseases such as red swelling, and breath sores. Processing changes the medicinal properties of rhubarb, and thus results in different focuses in
Emodin, aloe-emodin and rhein induced DNA damage and inhibited DNA repair gene expression in SCC-4 human tongue cancer cells.
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In our primary studies, we have shown that emodin, aloe-emodin and rhein induced cytotoxic effects, including cell cycle arrest and apoptosis in SCC-4 human tongue cancer cells. However, details regarding their effects on DNA damage and repair gene expression in SCC-4 cells are not clear. We
Synthesis and anti-tumor activity evaluation of rhein-aloe emodin hybrid molecule.
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To improve the anti-tumor effects of rhein and aloe-emodin, a rhein-aloe-emodin hybrid molecule (RH-AE) was synthesized from rhein and aloe-emodin in the presence of dicyclohexylcarbodiimide (DCC) and 4-dimethylaminopyridine (DMAP). Chemical and spectroscopic methods, such as 1H and 13C NMR
Rhein and aloe-emodin kinetics from senna laxatives in man.
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Therapeutic doses of two laxatives (Agiolax and Sennatin) were repeatedly administered to 10 healthy volunteers in a two-way change-over design. Blood samples were collected up to 96 h after the first dose, and plasma levels of total aloe-emodin and rhein were determined simultaneously with a
The synergistic purgative action of aloe-emodin anthrone and rhein anthrone in mice: synergism in large intestinal propulsion and water secretion.
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This study aimed to explore the mechanism involved in the synergistic purgative action of aloe-emodin anthrone and rhein anthrone, the active metabolites of sennoside C. Aloe-emodin anthrone and rhein anthrone, and their equimolar mixture, induced excretion of an approximately equal number of faeces
Simultaneous determination of Aloe-emodin and Rhein by synchronous fluorescence spectroscopy.
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A simple sensitive and quick assay to simultaneously determine Aloe-emodin (AE) and Rhein (RH) has been described based on their natural fluorescence. Due to their similar molecule structures, it is difficult to analysis and determine their contents by conventional fluorometry. Overlapping of
Studies on the photostability and phototoxicity of aloe-emodin, emodin and rhein.
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Aloe-emodin (1), emodin (2) and rhein (3) were found to be photolabile by visible (390-500 nm) light under aerobic conditions. The drugs 1, 2 and 3 were phototoxic in vitro when examined by the photohemolysis test under both oxygen and argon atmospheres, although the photohemolysis rate was markedly
Comparative pharmacokinetics of aloe-emodin, rhein and emodin determined by liquid chromatography-mass spectrometry after oral administration of a rhubarb peony decoction and rhubarb extract to rats.
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This study aimed to clarify the rationality of herbaceous compatibility of a rhubarb peony decoction (DaHuang-Mu-Dan-Tang, RPD) by comparing the pharmacokinetics of aloe-emodin, rhein and emodin in rats' plasma after oral administration of RPD and rhubarb extract. A rapid, sensitive LC-MS method was
Pharmacodynamics of Five Anthraquinones (Aloe-emodin, Emodin, Rhein, Chysophanol, and Physcion) and Reciprocal Pharmacokinetic Interaction in Rats with Cerebral Ischemia.
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(1) Background: Rhubarb anthraquinones-a class of components with neuroprotective function-can be used to alleviate cerebral ischemia reperfusion injury. (2) Methods: The three pharmacodynamic indicators are neurological function score, brain water content, and cerebral infarction area; UPLC-MS/MS
Emodin, aloe-emodin and rhein inhibit migration and invasion in human tongue cancer SCC-4 cells through the inhibition of gene expression of matrix metalloproteinase-9.
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Emodin, aloe-emodin and rhein are major compounds in rhubarb (Rheum palmatum L.), used in Chinese herbal medicine, and found to have antitumor properties including cell cycle arrest and apoptosis in many human cancer cells. Our previous studies also showed that emodin, aloe-emodin and rhein induced
Antitrypanosomal activity of aloin and its derivatives against Trypanosoma congolense field isolate.
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BACKGROUND
There is an urgent need for the development of new, cheap, safe and highly effective drugs against African trypanosomiasis that affects both man and livestock in sub-Saharan Africa including Ethiopia. In the present study the exudate of Aloe gilbertii, an endemic Aloe species of Ethiopia,
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