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10 rezultate
Isolation, characterization, molecular cloning and modeling of a new lipid transfer protein with antiviral and antiproliferative activities from Narcissus tazetta.
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A fetuin-binding peptide with a molecular mass of about 9kDa (designated NTP) was isolated and purified from the bulbs of Chinese daffodil, Narcissus tazetta var. chinensis L., by gel filtration and high-performance liquid chromatography, after removing the mannose-binding proteins by
Antiviral effects of alkaloid fraction of Narcissus.
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Current status of studies on the antiviral activity of a water-soluble extract from narcissus bulb against herpes viruses.
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Therapeutic activity of narcissus alkaloids on Rauscher leukemia: antiviral effect in vitro and rational drug combination in vivo.
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Anti-human immunodeficiency virus type 1 (HIV-1) activity of lectins from Narcissus species.
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Mannose-specific lectins (MSLs) were isolated from bulbs of fifteen wild Narcissus species growing in Spain and assayed for their HIV-1 infection inhibitory activity in MT-4 cells and compared to the Narcissus pseudonarcissus agglutinin (NPA), the commercially available MSL obtained from daffodils.
Narcissus tazetta lectin shows strong inhibitory effects against respiratory syncytial virus, influenza A (H1N1, H3N2, H5N1) and B viruses.
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A mannose-binding lectin (Narcissus tazetta lectin [NTL]) with potent antiviral activity was isolated and purified from the bulbs of the Chinese daffodil Narcissus tazetta var. chinensis, using ion exchange chromatography on diethylaminoethyl (DEAE)-cellulose, affinity chromatography on
Bioactive alkaloid extracts from Narcissus broussonetii: mass spectral studies.
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Plants of the Amaryllidaceae family are a well-known source of tetrahydroisoquinoline alkaloids with a wide range of biological activities, including antiviral, antitumoral, antiparasitic, psychopharmacological, and acetylcholinesterase inhibitory, among others. Recent advances in the use of GC or
Therapeutic activity of pretazettine, a narcissus alkaloid, on spontaneous AKR leukemia.
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A narcissus alkaloid, pretazettine hydrochloride (PTZ) has been shown to be active against spontaneous AKR leukemia. The long-term treatment with PTZ begining at 5--7 months of age of a group of AKR mice containing 10--20% of advanced leukemic mice significantly prolonged the life span of the group.
Therapeutic activity of pretazettine, a narcissus alkaloid on Rauscher leukemia: comparison with tazettine and streptonigrin.
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The therapeutic activity of narcissus alkaloid pretazettine HC1 (PTZ) on established Rauscher leukemia has been demonstrated and compared with the isomer tazettine (TZ) and an antibiotic, streptonigrin (SN). PTZ and SN showed remarkable prolongation effect on the life span of the leukemic mice and
Effects of crude extracts of various plants on infectious bovine rhinotracheitis virus-plaque production.
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Extracts of 28 plants were tested without demonstable antiviral activity in an agar-overlay plaque-reduction antiviral assay system, using infectious bovine rhinotracheitis virus and bovine endocardial cell cultures. Ethanolic extract of Narcissus tazetta L bulb elicited antiviral activity by
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