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butyl alcohol/dichloromethane
L'enllaç es desa al porta-retalls
10 resultats
[Acute toxicity of Euphorbiae Pekinensis Radix and vinegar-processing Euphorbiae Pekinensis Radix on zebrafish embryo].
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The embryos of model organism zebrafish were used to evaluate the acute toxicity of the extracts of Euphorbiae Pekinensis Radix and vinegar-processing Euphorbiae Pekinensis Radix, and the total terpene content of each extract was determined by using euphol as the reference standards. Twenty-four h
Synthesis of 4-formyl estrone using a positional protecting group and its conversion to other C-4-substituted estrogens.
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4-Formyl estrone was synthesized in overall good yield in three steps starting from estrone. This was achieved by conducting an electrophilic aromatic substitution reaction using formaldehyde, triethylamine, and MgCl2 on 2-tert-butyl estrone, which was readily prepared in 96% yield from estrone
Antiplatelet Activity of Acylphloroglucinol Derivatives Isolated from Dryopteris crassirhizoma.
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Platelets are an important component of the initial response to vascular endothelial injury; however, platelet dysfunction induces the acute clinical symptoms of thrombotic disorders, which trigger severe cardiovascular diseases such as myocardial infarction, ischemia, and stroke. In this study, we
Antioxidant activities of Clerodendrum cyrtophyllum Turcz leaf extracts and their major components
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This study was designed to investigate the antioxidant properties of the extracts and subfractions of various polarities from Clerodendrum cyrtophyllum Turcz leaves and the related phenolic compound profiles. The ethyl acetate fraction (EAF) showed the most potent radical-scavenging activity for
Chemical profiling of the street cocktail drug 'nyaope' in South Africa using GC-MS I: Stability studies of components of 'nyaope' in organic solvents.
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Nyaope, a street drug commonly found in South Africa, is a mixture of low grade heroin, cannabis products, antiretroviral drugs and other materials added as cutting agents. It is a highly physiologically addictive substance which is smoked by users. Little work has been published on the chemical
Effects of Withania somnifera and Tinospora cordifolia extracts on the side population phenotype of human epithelial cancer cells: toward targeting multidrug resistance in cancer.
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Recent reports suggest the existence of a subpopulation of stem-like cancer cells, termed as cancer stem cells (CSCs), which bear functional and phenotypic resemblance with the adult, tissue-resident stem cells. Side population (SP) assay based on differential efflux of Hoechst 33342 has been
The enriched fraction of Elephantopus scaber Triggers apoptosis and inhibits multi-drug resistance transporters in human epithelial cancer cells.
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BACKGROUND
Medicinal plants have played an important role in the development of clinically useful anticancer agents. Elephantopus scaber (Asteraceae) (ES) is widely used in Indian traditional system of medicine for the treatment of various ailments including cancer.
OBJECTIVE
To investigate
The enriched fraction of Vernonia cinerea L. induces apoptosis and inhibits multi-drug resistance transporters in human epithelial cancer cells.
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BACKGROUND
Vernonia cinerea Less. (VC) of the family Asteraceaes is considered as the sacred plant; 'Dasapushpam' which is ethnopharmacologically significant to the people of Kerala in India. In fact, VC has been used in the traditional system of medicine (Ayurveda) for the treatment of various
Isolation and Bioactivity Analysis of Ethyl Acetate Extract from Acer tegmentosum Using In Vitro Assay and On-Line Screening HPLC-ABTS(+) System.
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The Acer tegmentosum (3 kg) was extracted using hot water, and the freeze-dried extract powder was partitioned successively using dichloromethane (DCM), ethyl acetate (EA), butyl alcohol (n-BuOH), and water. From the EA extract fraction (1.24 g), five phenolic compounds were isolated by the silica
Dracocephalum Moldavica L. Extracts Protect H9c2 Cardiomyocytes Against H 2 O 2-Induced Apoptosis and Oxidative Stress
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Materials and methods: The petroleum ether (petrol), dichloromethane (CH2Cl2), ethyl acetate (EtOAc), and n-butyl alcohol (n-BuOH) fractions were isolated from alcohol extracts of D. moldavica L. Total phenolic and flavonoid
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