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imperialine/fritillaria
Povezava se shrani v odložišče
Stran 1 iz 26 rezultatov
The extraction of imperialine and imperialine-3 beta-glucoside from Fritillaria pallidiflora Schrenk and quantitative determination by HPLC-evaporative light scattering detection.
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Prijava / prijava
The extraction procedure and quantitative determination by HPLC-evaporative light scattering detection (ELSD) of the main bioactive components, namely, imperialine (1) and imperialine-3 beta-glucoside (2), of bulbs of Fritillaria pallidiflora Schrenk have been investigated. The most efficient method
Fusarium redolens 6WBY3, an endophytic fungus isolated from Fritillaria unibracteata var. wabuensis, produces peimisine and imperialine-3β-D-glucoside.
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The major biological active ingredients of Bulbus Fritillariae cirrhosae (BFC) are steroidal alkaloids, such as peimisine, imperialine-3β-D-glucoside, and peimine. The bulbus of Fritillaria unibracteata var. wabuensis (FUW) was officially recorded in the National Pharmacopoeia of China (2010
[Determination of imperialine and imperialine-3 beta-D-glucoside in bulbs of Fritillaria pallidiflora by HPLC-ELSD].
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OBJECTIVE
To establish an HPLC (high performance liquid chromatography)-ELSD (evaporative light scattering detector) method for the quantification of chromophore-lacking imperialine (I) and imperialine-3 beta-D-glucoside (II) in bulbs of Fritillaria pallidiflora.
METHODS
By optimizing the
Imperialine and Verticinone from Bulbs of Fritillaria wabuensis Inhibit Pro-inflammatory Mediators in LPS-stimulated RAW 264.7 Macrophages.
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The bulbs of plants belonging to the Fritillaria cirrhosa-group have been used as antitussive and expectorant herbs in traditional Chinese medicine for thousands of years. In this study, we isolated two isomers of verticinone and imperialine, steroidal alkaloids belonging to the cevanine group, from
Mechanistic and therapeutic study of novel anti-tumor function of natural compound imperialine for treating non-small cell lung cancer.
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The Isosteroid Alkaloid Imperialine from Bulbs of Fritillaria cirrhosa Mitigates Pulmonary Functional and Structural Impairment and Suppresses Inflammatory Response in a COPD-Like Rat Model.
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Chronic obstructive pulmonary disease (COPD) is the third leading cause of death in the world. Present therapies for COPD have limited effect on reducing the progression of COPD and suppressing the inflammatory response in the lung. Bulbs of Fritillaria cirrhosa D. Don (BFC) have been used in many
Pharmacological investigation of imperialine--an alkaloid from Fritillaria imperialis Linn.
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Pharmacokinetic study and determination of imperialine, the major bioactive component in antitussive Fritillaria cirrhosa, in rat by high-performance liquid chromatography coupled with evaporative light-scattering detector.
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New isosteroidal alkaloids with tracheal relaxant effect from the bulbs of Fritillaria pallidiflora Schrenk.
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Four new isosteroidal alkaloids, yibeinones A-D (1-4), along with four known ones, imperialine-3β-d-glucoside (5), imperialine (6), imperialine β-N-oxide (7), and dongbeinine (8), were isolated from the bulbs of Fritillaria pallidiflora. Their structures were confirmed on the basis of extensive
[Studies on alkaloid constituents of Fritillaria yuminensis].
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Twelve alkaloids were isolated from the bulbs of Fritillaria yuminensis by column chromatography over silica gel, ODS, and Sephadex LH-20, as well as RP-HPLC. Their structures were identified mainly by NMR and MS analyses as yubeinine(1), imperialine(2), delavinone(3), tortifoline(4),
Effect of superfine grinding on the physicochemical properties of bulbs of Fritillaria unibracteata Hsiao et K.C. Hsia powder.
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This work aimed to determine the influence of superfine grinding on the physicochemical properties of bulbs of Fritillaria unibracteata Hsiao et K.C. Hsia (BFU) powder. For this purpose, fine powder (FP) and two superfine powders (SPs) were obtained via superfine and conventional grinding
[Studies on the chemical constituents of Fritillaria taipaiensis L].
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A new C-nor-D-homo-steroidal alkaloid named taipaienine, together with five known alkaloids namely chuanbeinone, imperialine, verticinone, perimissine and isoverticine were isolated from the bulbs of Fritillaria taipaiensis L. var. ningxiaensis Y. et W.. The unusual structure of taipaienine was a
[Alkaloid constituents of Fritillaria pallidiflora Schrenk].
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Three steroid alkaloids were isolated from the bulb of Fritillaria pallidiflora. On the basis of spectroscopic analysis and physico-chemical constants they were identified as imperialine, imperialine-beta-D-glucoside and peimissine.
New steroidal alkaloids from Fritillaria imperialis and their cholinesterase inhibiting activities.
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Two new cevanine steroidal alkaloids, impericine (1) and forticine (2) along with known bases delavine (3), persicanidine A (4), and imperialine (5) were isolated from the bulbs of Fritillaria imperialis. The structures of impericine (1) [(20R,22S,25S)-5alpha-cevanin-23-ene-3beta,6beta,16beta-triol]
Isosteroid alkaloids from Fritillaria cirrhosa bulbus as inhibitors of cigarette smoke-induced oxidative stress.
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Prijava / prijava
Fritillaria cirrhosa bulbus is a Chinese folk herb famous for its antitussive, expectorant, anti-asthma and anti-inflammatory properties, and is widely used to treat respiratory diseases. However, the impacts of F. cirrhosa bulbus on oxidative stress are still unkown. In the present study, we
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