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Green synthesis of silver nanoparticles using Rheum palmatum root extract and their antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa.

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In the present study, silver nanoparticles (AgNPs) were synthesized by using aqueous root extracts of Rheum palmatum and characterized by various spectroscopic methods. The nanoparticles were found to be in hexagonal and spherical shapes. The average particle size was found to be 121 ± 2 nm with

[Studies on the Chinese rhubarb. V. Antibacterial properties and stability of antraquinone derivatives and the antagonism of some compounds to their inhibitory action].

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[STUDIES ON CHINESE RHUBARB. I. PRELIMINARY STUDY ON THE ANTIBACTERIAL ACTIVITY OF ANTHRAQUINONE DERIVATIVES OF CHINESE RHUBARB (RHEUM PALMATUM L.)].

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Studies on a rhein-producing endophytic fungus isolated from Rheum palmatum L.

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Rheum palmatum L. (Chinese rhubarb) is a highly regarded medicinal plant. Its dominant active constituents are anthraquinones including emodin, aloe-emodin, rhein, etc. Rhein naturally occurs in anthraquinone (1, 3, 8-trihydroxy-6-methyl anthraquinone), which is found in R. palmatum L. and related

Anti-amebic effects of Chinese rhubarb (Rheum palmatum) leaves' extract, the anthraquinone rhein and related compounds.

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Entamoeba histolytica infects 50 million people worldwide and causes 55 thousand fatalities every year. Current anti-amebic drugs (e.g. paromomycin) work either at the level of the intestinal lumen (where trophozoites proliferate via cell divisions) or on the invasive trophozoites that have

Ameliorative Effect and Mechanism of the Purified Anthraquinone-Glycoside Preparation from Rheum Palmatum L. on Type 2 Diabetes Mellitus.

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Rheum palmatum L. is a traditional Chinese medicine with various pharmacological properties, including anti-inflammatory, antibacterial, and detoxification effects. In this study, the mechanism of the hypoglycemic effect of purified anthraquinone-Glycoside from Rheum palmatum L. (PAGR)

Effects of Japanese traditional herbal medicines (Kampo) on growth and virulence properties of Porphyromonas gingivalis and viability of oral epithelial cells.

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BACKGROUND Kampos, commonly used in Japanese traditional medicine, are standardized herbal mixtures that have been used for centuries to treat a variety of ailments. We hypothesized that Kampos may have unidentified properties that may be beneficial in periodontitis, an inflammatory disease

Antimicrobial activity of food-compatible plant extracts and chitosan against naturally occurring micro-organisms in tomato juice.

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BACKGROUND Chitosan (AC) and five hydroalcoholic extracts from Lithospermum erythrorhizon (SE), Rheum palmatum (RE), Thymus vulgaris (AT), Lippia citriodora (PLX) and a mixture of Rosmarinus officinalis, Salvia lavandulifolia and Thymus mastichina (LA) were tested for antimicrobial activity against

[Experimental study of bacteriostatic activity of Chinese herbal medicines on primary cariogenic bacteria in vitro].

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OBJECTIVE To screen some Chinese herbal medicines for their inhibitory activity on cariogenic bacteria, and investigate their active ingredients, and measure their minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC). METHODS Active components were isolated from every

Cytotoxic tetramic acid derivative produced by a plant type-III polyketide synthase.

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The tetramic acid (2,4-pyrrolidinedione) scaffold has been recognized as an important structural feature because of its mycotoxic, antibacterial, antiviral, and antioxidant activities. This important class of natural products is reportedly produced by the type-I polyketide synthase/nonribosomal

The anthraquinone derivative Emodin inhibits angiogenesis and metastasis through downregulating Runx2 activity in breast cancer.

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Emodin (EMD) is an anthraquinone derivative extracted from the root and rhizome of Rheum palmatum L. which exhibits a range of activities, including anti-bacterial, antitumor, diuretic and vasorelaxant effects. The ability to inhibit metastasis and angiogenesis was shown in previous pharmacological

Anti-HBV effect of individual traditional Chinese herbal medicine in vitro and in vivo: an analytic review.

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Traditional Chinese herbal medicine (TCHM) has been widely used in the treatment of chronic hepatitis B (CHB) in China. The systematic analysis of clinical research of TCHM against CHB revealed its potential but not confirmed its therapeutic effect. To understand the detailed antiviral effect of

Emodin suppresses inflammatory responses and joint destruction in collagen-induced arthritic mice.

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OBJECTIVE Emodin (3-methyl-1,6,8-trihydroxyanthraquinone) is one of the active components present in the root and rhizome of Rheum palmatum. It has been shown to contain biological activity (antitumour, antibacterial, diuretic and vasorelaxant effects). However, the mechanisms underlying the

Antimicrobial photodynamic therapy against multidrug-resistant Acinetobacter baumannii clinical isolates mediated by aloe-emodin: an in vitro study.

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Antimicrobial photodynamic therapy (aPDT) has received considerable attention as an emerging and promising approach for treating superficial infections. The aim of this study was to investigate aPDT mediated by aloe emodin (AE), a natural compound isolated from Aloe vera and Rheum

[Research progress in anti-tumor effect of emodin].

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Emodin is one of the main active ingredient of Rheum palmatum, and has anti-inflammatory, anti-bacterial, anti-viral and other effects. In recent years, it arouse concern since it has a significant anti-tumor effect with low toxicity. In this paper we mainly report the anti-cancer effects of emodin

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