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picea omorika/protirakovinový
Odkaz sa uloží do schránky
Strana 1 od 16 výsledky
Carrier herbal medicine: an evaluation of the antimicrobial and anticancer activity in some frequently used remedies.
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The antimicrobial properties of some traditional Carrier herbal preparations were evaluated using an agar dilution method. Pitch preparations were screened against known human pathogens: Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans and Aspergillus fumigatus. The
Anti-tumor-initiating effects of phenolic compounds isolated from the bark of Picea jezoensis var. jezoensis.
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We have previously reported the isolation of nine phenolic compounds including three new flavonostilbenes, jezonocinols A, B, and C, from the MeOH extract of the bark of Picea jezoensis var. jezoensis. Further investigation of the MeOH extract led to the isolation of three new stilbene-type
Two new anti-tumor promoting serratane-type triterpenoids from the stem bark of Picea jezoensis var. jezoensis.
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Two new serratane-type triterpenoids, 1 and 2, were isolated from the stem bark of Picea jezoensis Carr. var. jezoensis (Pinaceae). Their structures were determined to be 3beta-methoxyserrat-13-en-21beta-ol (1) and 13beta, l4beta-epoxy-3beta-methoxyserratan-21beta-ol (2) on the basis of
The antineoplastic quassinoids of Simaba cuspidata spruce and Ailanthus grandis Prain.
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The South American Simaba cuspidata Spruce and North Indian Ailanthus grandis Prain were investigated as sources of potentially useful antineoplastic agents. Both of these Simaroubaceae plant species were found to produce 6 alpha-tigloyloxychaparrinone (4a) and the new quassinoid 6
Hydroxymatairesinol, a novel enterolactone precursor with antitumor properties from coniferous tree (Picea abies).
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The potential for the extraction of the plant lignan hydroxymatairesinol (HMR) in large scale from Norway spruce (Picea abies) has given us the opportunity to study the metabolism and biological actions of HMR in animals. HMR, the most abundant single component of spruce lignans, was metabolized to
Antioxidant and antitumor effects of hydroxymatairesinol (HM-3000, HMR), a lignan isolated from the knots of spruce.
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The antioxidant properties of hydroxymatairesinol (HM-3000) were studied in vitro in lipid peroxidation, superoxide and peroxyl radical scavenging, and LDL-oxidation models in comparison with the known synthetic antioxidants Trolox (a water-soluble vitamin E derivative), butylated hydroxyanisol
Potential antitumor-promoting diterpenoids from the stem bark of Picea glehni.
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A novel rearranged labdane-type diterpenoid, 19(4-->3)abeo-8alpha, 13(S)-epoxylabda-4(18),14-diene (1), and two new abietane-type diterpenoids, 19-nor-abieta-4(18),8,11,13-tetraen-7-one (2) and 12-hydroxydehydroabietic acid (3) were isolated from the stem bark of Picea glehni, together with seven
Estrogenic activity of 7-hydroxymatairesinol potassium acetate (HMR/lignan) from Norway spruce (Picea abies) knots and of its active metabolite enterolactone in MCF-7 cells.
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Lignans are plant polyphenols which may possess anticancer, antioxidant, antimicrobial, anti-inflammatory and immunomodulatory activities. In particular, the lignan 7-hydroxymatairesinol (HMR/lignan, HMR) is a novel precursor of the mammalian lignan enterolactone (EL). In the present study, we
Cytostatic effects of plant essential oils on human skin and lung cells.
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Essential oils are volatile compounds extracted from various plants by distillation, hydrodiffusion or compression. In recent years, the use of essential oils has gained popularity. Many pharmaceutical, cosmetic, sanitary, food industry and agriculture studies have revealed that essential oils exert
Cancer chemopreventive agents, serratane-type triterpenoids from Picea jezoensis.
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Seven serratane-type triterpenoids isolated from the cuticle of Picea jezoensis (Sieb. et Zucc.) Carr. jezoensis (Pinaceae) and the stem bark of Picea jezoensis (Sieb. et Zucc.) Carr. hondoensis (Mayer) Rehder (Pinaceae) were studied their possible inhibitory effects on Epstein-Barr virus early
Cancer chemopreventive activity of serratane-type triterpenoids from Picea jezoensis.
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To search for cancer chemopreventive agents from natural sources, 13alpha,14alpha-epoxy-21alpha-methoxyserratan-3-one, 21alpha-methoxyserrat-13-en-3-one, and 21alpha-hydroxy-3beta-methoxyserrat-14-en-30-al isolated from the cuticle of Picea jezoensis (Sieb. et Zucc.) Carr. var. jezoensis (Pinaceae)
Anti-initiating activity of 3beta-methoxy-13alpha,14alpha-epoxyserratan-21beta-ol (PJJ-34) from the stem bark of Picea jezoensis Carr. var. jezoensis.
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Ultraviolet light is the major cause of skin cancers in human, and several effects of ultraviolet light B (UVB) are thought to contribute to skin photocarcinogenesis. 3Beta-methoxy-13alpha,14alpha-epoxyserratan-21beta-ol (PJJ-34; 1) isolated from Picea jezoensis Carr. var. jezoensis showed the
Chemopreventive effects of 13alpha,14alpha-epoxy-3beta-methoxyserratan-21beta-ol (PJJ-34), a serratane-type triterpenoid, in a rat multi-organ carcinogenesis bioassay.
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A novel serratane-type triterpenoid, 13alpha,14alpha-epoxy-3beta-methoxyserratan-21beta-ol (PJJ-34) derived from cuticles of Picea jezoensis Carr. var. jezoensis, has proved to be highly effective at suppressing carcinogenesis both in vitro and in vivo. To investigate possible anti-carcinogenic
Cancer chemopreventive activity of 3beta-methoxyserrat-14-en-21beta-ol and several serratane analogs on two-stage mouse skin carcinogenesis.
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3beta-Methoxyserrat-14-en-21beta-ol (1) and 3alpha-methoxyserrat-14-en-21beta-ol (2) are the most abundant triterpenoids from two Picea plants, Picea jezoensis (Sieb. et Zucc.) Carr. var. jezoensis and P. jezoensis (Sieb. et Zucc.) Carr. hondoensis (Mayr) Rehder, and the total yield of 1 and 2 reach
Uptake and metabolism of hydroxymatairesinol in relation to its anticarcinogenicity in DMBA-induced rat mammary carcinoma model.
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The chemopreventive effects of hydroxymatairesinol (HMR), a lignan extracted from Norway spruce (Picea abies), on the development of mammary carcinoma induced by 7,12-dimethylbenz[a]anthracene (DMBA) was studied in rats. HMR administered via diet in an average daily dose of 4.7 mg/kg body wt
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