Bibliographies thématiques / Fagopyrum dibotrys

Littérature scientifique sur le sujet « Fagopyrum dibotrys »

Auteur : Grafiati
Publié le 18 mai 2024

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Articles de revues sur le sujet "Fagopyrum dibotrys"

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Wang, Kai-Jin, Ying-Jun Zhang et Chong-Ren Yang. « Antioxidant phenolic constituents from Fagopyrum dibotrys ». Journal of Ethnopharmacology 99, no 2 (juin 2005) : 259–64. http://dx.doi.org/10.1016/j.jep.2005.02.029.

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Chen, Ming-Lin, Ya-Li You, Hui-Hui Wen et Ying Li. « The breeding system and reproductive ecology of the endangered plant Fagopyrum dibotrys (D. Don) Hara ». Bangladesh Journal of Botany 43, no 2 (19 janvier 2015) : 197–205. http://dx.doi.org/10.3329/bjb.v43i2.21673.

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Distyly has been confirmed in Fagopyrum dibotrys (D. Don) Hara. The species are dimorphic in style length, anther height, pollen size and number but not in flower diameter, pollen surface ornamentation and stigma papilla cells. In F. dibotrys populations, style-morph ratios vary from isoplethy (1L : 1S) to strongly L-biased, or they more often contain only the L-morph. Moreover, it was found that larger isoplethic populations of F. dibotrys could produce more seeds than smaller single-morph populations. F. dibotrys had a smaller population size, morph-biased populations, and lower seed setting, which could be the reasons for the decrease in its population DOI: http://dx.doi.org/10.3329/bjb.v43i2.21673 Bangladesh J. Bot. 43(2): 197-205, 2014 (September)
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Li, Xin, Jingling Liu, Qinxiang Chang, Ziyun Zhou, Ruilian Han et Zongsuo Liang. « Antioxidant and Antidiabetic Activity of Proanthocyanidins from Fagopyrum dibotrys ». Molecules 26, no 9 (21 avril 2021) : 2417. http://dx.doi.org/10.3390/molecules26092417.

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Proanthocyanidins are natural glycosidase inhibitors with excellent antioxidant activity. This study aims to search for a new source of proanthocyanidins for the prevention and treatment of type 2 diabetes with higher content and better activity and get their structure elucidated. First, the total proanthocyanidins contents (TOPCs), antioxidant activity, antidiabetic activity of seven common Polygonaceae plants were analyzed and compared. Then proanthocyanidins from the rhizome of Fagopyrum dibotrys were purified, and the detailed structure was comprehensively analyzed by ultraviolet visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), 13C nuclear magnetic resonance spectroscopy (13C NMR), reversed-phase high-performance liquid chromatography-electrospray mass spectrometry (RP-HPLC-ESI-MS), and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS). The rhizome of F. dibotrys showed the highest TOPCs, the strongest antioxidant, and antidiabetic activities; the TOPCs, antioxidant and antidiabetic activities were all very significantly positively correlated. Proanthocyanidins purified from the rhizome of F. dibotrys showed better antidiabetic activity than grape seed proanthocyanidins (GsPs). Seventy-two proanthocyanidins from trimer to undecamer with a mean degree of polymerization (mDP) of about 5.02 ± 0.21 were identified with catechin and epicatechin as the dominant monomers. Conclusion: Proanthocyanidins are the main antioxidant and antidiabetic active substances of F. dibotrys and are expected to be developed into potential antioxidant and hypoglycemic products.
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Zhang, Jian, Zhi-Qi Yin, Peng Cao, You-Bin Li et Jin-Ao Duan. « A new flavonol derivative from Fagopyrum dibotrys ». Chemistry of Natural Compounds 44, no 6 (novembre 2008) : 701–3. http://dx.doi.org/10.1007/s10600-009-9197-1.

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Zhang, Chengcai, Yang Jiang, Changzheng Liu, Linyuan Shi, Jintong Li, Yan Zeng, Lanping Guo et Sheng Wang. « Identification of Medicinal Compounds of Fagopyri Dibotryis Rhizome from Different Origins and Its Varieties Using UPLC-MS/MS-Based Metabolomics ». Metabolites 12, no 9 (25 août 2022) : 790. http://dx.doi.org/10.3390/metabo12090790.

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Fagopyrum dibotrys, being native to southwest China, is widely distributed in Yunnan, Guizhou Provinces and Chongqing City. However, the quality of medicinal materials growing in different origins varies greatly, and cannot meet the market demand for high-quality F. dibotrys. In this study, 648 metabolites were identified, and phenolic compounds of F. dibotrys from different origins were clearly separated by principal component analysis (PCA). Our results suggested that the medicinal differences of F. dibotrys from different origins can be elucidated via the variations in the abundance of the phenolic and flavonoid compounds. We found that the epicatechin, total flavonoids and total tannin content in Yunnan Qujing (YQ) and Yunnan Kunming (YK) were higher than those in Chongqing Shizhu (CS), Chongqing Fuling (CF) and Guizhou Bijie (GB), suggesting that Yunnan Province can be considered as one of the areas that produce high-quality medicinal materials. Additionally, 1,6-di-O-galloyl-β-D-glucose, 2,3-di-O-galloyl-D-glucose and gallic acid could be used as ideal marker compounds for the quality control of F. dibotrys from different origins caused by metabolites, and the F. dibotrys planted in Yunnan Province is well worth exploiting.
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Liang, Chen, Jian-Ping Yuan, Tao Ding, Lv Yan, Lu Ling, Xin-Fu Zhou et Yue-Qin Zeng. « Neuroprotective Effect of Fagopyrum dibotrys Extract against Alzheimer’s Disease ». Evidence-Based Complementary and Alternative Medicine 2017 (2017) : 1–9. http://dx.doi.org/10.1155/2017/3294586.

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Accumulated evidence suggests that polyphenolic antioxidants present in herbs play important roles in prevention of AD; the molecular mechanisms behind neuroprotective actions rely on the phenols through different effects on the amyloid-aggregation pathway. Fagopyrum dibotrys is a traditional herbal medicine which contains high quantity phenols. In present study, we investigate the beneficial pharmacological actions of Fagopyrum dibotrys extract in the APP/PS1 transgenic mouse mode; meanwhile, effects of the FDE on the fibrillation and cytotoxicity of Aβ peptide were evaluated in vitro. After 9-month treatment, FDE exhibited multifunctional properties on Aβ-related pathologies, which cleaned Aβ deposits in the brain and decreased Aβ burden in the plasma, inhibited microhaemorrhage, and reduced reactive microglia in APP/PS1 transgenic mice and also promoted Aβ fibrils disaggregation and inhibited neurotoxicity induced by Aβ in SH-SY5Y cells. These results highlighted that FDE is an AD type pathology modulator with therapeutic potential against AD.
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Zhang, Xiang, Yu Cao, Jinhua Li, Ailin Liu, Haibo Liu et Linfang Huang. « Neuraminidase Inhibitory Activity and Constituent Characterization of Fagopyrum dibotrys ». Molecules 22, no 11 (18 novembre 2017) : 1998. http://dx.doi.org/10.3390/molecules22111998.

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Bai, Zheng Zhong, Xiao Hui Zhang, Li Jiang Xuan et Feng Kui Mo. « A phenolic glycoside from Fagopyrum dibotrys (D. Don) Hara ». Chinese Chemical Letters 18, no 9 (septembre 2007) : 1087–88. http://dx.doi.org/10.1016/j.cclet.2007.07.033.

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Mitishev, Alexander Vladimirovich, Anastasia Sergeevna Fednina, Evgeniy Evgenievich Kurdyukov et Marina Igorevna Ulanova. « Some species of the genus Fagopyrum : chemical composition, pharmacological effects, prospects of use ». chemistry of plant raw material, no 1 (7 février 2024) : 31–56. http://dx.doi.org/10.14258/jcprm.20240112933.

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This review analyzes and summarizes the information of research by domestic and foreign scientists on the chemical composition, pharmacological activity of metabolites of plants of the genus Fagopyrum. The genus Fagopyrum, a member of the Polygonaceae family, includes 15 species, most of them are cultivated on an industrial scale on the territory of the Russian Federation, China, India, Indonesia and North American countries. The greatest interest in medicine and pharmacy is represented by four types of buckwheat: seed buckwheat (Fagopyrum esculentum) and Tatar buckwheat (Fagopyrum tataricum), perennial buckwheat (Fagopyrum dibotrys) and red-stem buckwheat (Fagopyrum rubricaulis). These types are widely used in traditional medicine of China, Tibet, the Russian Federation, for the treatment of lung diseases, skin, edematous syndromes and infectious diseases. Currently, more than 150 compounds related to flavonoids, phenylpropanoids, tannins, phagopyritols, triterpenoids, steroids, fatty acids, essential oils, alkaloids, anthraquinones, coumarins, vitamins, amino acids, macro- and microelements have been isolated and identified from the studied buckwheat species. Extracts and isolated individual compounds have a wide range of pharmacological effects: antitumor, antioxidant, anti-inflammatory, hepatoprotective, hypoglycemic, antiallergic, antibacterial, angioprotective and adaptogenic. The information given in the review indicates that plants of the genus Fagopyrum are promising for further study and use in various industries.
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Guo, Yihui, Xinke Tang, Siren Hu, Kaiqin Li, Meiliang Zhou et Gao Jian. « Steptomyces fagopyri sp. nov., a novel actinomycete isolated from rhizospheric soil of Fagopyrum dibotrys ». International Journal of Systematic and Evolutionary Microbiology 70, no 12 (1 décembre 2020) : 6437–43. http://dx.doi.org/10.1099/ijsem.0.004555.

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A novel actinomycete, designated strain QMT-28T, was isolated from rhizosphere soil of Fagopyrum dibotrys collected from Shuangfeng, Hunan Province, PR China. Strain QMT-28T grew well on International Streptomyces Project series media and formed well-developed, branched substrate hyphae and aerial mycelium that differentiated into loose spiral spore chains consisting of cylindrical spores with smooth surfaces. The diagnostic diamino acid was ll-diaminopimelic acid and the whole-cell sugars were galactose and glucose. The predominant fatty acids were C18 : 1 cis9, summed feature 6 (C18 : 2 cis 9,12/C18 : 0 a) and C16 : 0. The polar lipids included diphosphatidylglycerol, hydroxy phospatidylethanolamine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannosides, phospholipids of unknown structure containing glucosamine and several unidentified phospholipids. The major menaquinones were MK-9, MK-9(H2), MK-9(H4), MK-9(H6) and MK-9(H8). The genome size of strain QMT-28T was about 8.7 Mbp with a G+C content of 71.2 mol%. Phylogenetic analysis showed that the novel strain was closely related to Streptomyces olivochromogenes DSM 40451T (99.5 % similarity), Streptomyces mirabilis NBRC 13450T (98.9 %), Streptomyces kanamyceticus NBRC 13414T (98.9 %), Streptomyces kaempferi I37T (98.9 %) and Streptomyces arcticus ZLN234T (98.8 %). However, the average nucleotide identity values, the digital DNA–DNA hybridization values and the multilocus sequence analysis evolutionary distances between this strain and closely related strains showed that it belonged to a distinct species. In addition, these results were also supported by differences in the phenotypic characteristics between QMT-28T and five closely related type strains. Consequently, strain QMT-28T should represent a novel species of the genus Streptomyces , with the suggested name Streptomyces fagopyri sp. nov. The type strain is QMT-28T (=CICC 24808T=JCM 33796T).
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Thèses sur le sujet "Fagopyrum dibotrys"

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Pradhan, Durga Kumar. « Pharmacograsy of Fagopyrum dibotrys(D.Don) Hara an ethnomedicine of Sikkim and Darjeeling Himalays with special emphasis on growth physiology of the plant and productivity of Bioactive natural products ». Thesis, University of North Bengal, 2001. http://hdl.handle.net/123456789/881.

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