syringa/антиоксиданс

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Secoiridoid glucosides and related compounds from Syringa reticulata and their antioxidant activities.

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A 70% EtOH extract from the bark of Syringareticulata has shown significant antioxidant activity. Chemical study on the extract resulted in the isolation of seventeen compounds (1-17), including a novel oleoside-type secoiridoid glucoside, reticuloside (1), and the structures were elucidated on the

Phenolic composition, antioxidant and antinociceptive activities of Syringa vulgaris L. bark and leaf extracts.

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Metabolite profile, antioxidant and antinociceptive activities of Syringa vulgaris bark and leaf methanolic extracts were investigated. By means of HPLC-DAD-ESI-TOF and HPLC-DAD-ESI-MS/MS, a total of 33 phenolics were identified, including 15 secoiridoids, 6 phenylpropanoids, 3 flavonoids, 3 lignans

Characterization of antioxidant phenolics in Syringa vulgaris L. flowers and fruits by HPLC-DAD-ESI-MS.

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In this study the polyphenolic composition of lilac flowers and fruits was determined for the first time. For the identification of compounds, accurate molecular masses and formulas, acquired by LC and ESI-TOF-MS and fragmentation pattern given by LC-ESI/MS/MS analyses, were used. Our

A new lignan from the roots of Syringa pinnatifolia.

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Phytochemical investigation of the roots of Syringa pinnatifolia has resulted in the isolation of a new lignan, pinnatifolin A (1), together with seven known compounds (2-8). The structures were elucidated on the basis of extensive spectroscopic methods, including NMR, MS, UV and IR spectra. The

Sesquiterpenoids and lignans from the roots of Syringa pinnatifolia.

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Two new sesquiterpenoids, pinnatifone A (1) and pinnatifone B (2), and two new lignans, pinnatifolin (3) and isopinnatifolin (4), along with six known lignans (5-10), were isolated from the roots of Syringa pinnatifolia. The structures of the new compounds were elucidated by extensive spectroscopic

Protective Effect of Iridoid Glycosides of the Leaves of Syringa oblata Lindl. on Dextran Sulfate Sodium-Induced Ulcerative Colitis by Inhibition of the TLR2/4/MyD88/NF-κB Signaling Pathway.

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Iridoid glycoside (IG) is the major active fraction extracted from the leaves of Syringa oblata Lindl. In view of its antimicrobial and antidiarrheal potential, it could be beneficial for the treatment of ulcerative colitis (UC). In the present study, IG (20, 40, and 80 mg/kg) was

Phytochemical and pharmacological progress on the genus Syringa.

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Genus Syringa, belonging to the Oleaceae family, consists of more than 40 plant species worldwide, of which 22 species, including 18 endemic species, are found in China. Most Syringa plants are used in making ornaments and traditional medicines, whereas some are employed for construction or economic

Effect of polyphenols from Syringa vulgaris on blood stasis syndrome

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In this study, we employed a previously developed in vivo assay system to determine whether the flowers and leaves of Syringa vulgaris (S. vulgaris; commonly known as "lilac") can prevent blood stasis syndrome, known as oketsu in Japanese. This syndrome is considered an

[Evaluation of drought-resistant physiological characteristics of roots and leaves for main greening tree species in Northwest Liaoning Province, China in spring.]

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In the present study, the effects of spring drought stress on physiological characteristics of leaves and roots for Populus alba, Ulmus pumila, Syringa oblata and Prunus sibirica were analyzed in Northwest Liaoning Province. The relationships between leaves and roots under drought stress were

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