Results 131 to 140 of about 1,186 (173)

Xanthones from Polygala tenuifolia

Phytochemistry, 1992
Abstract From the roots of Polygala tenuifolia , six new xanthones, 3-hydroxy-2,8-dimethoxyxanthone, 7-hydroxy-1,2,3-trimethoxyxanthone, 3-hydroxy-1,2,7-trimethoxyxanthone, 1,7-dimethoxy-2,3-methylenedioxyxanthone, 6,8-dihydroxy-1,2,4-trimethoxyxanthone, and 6,8-dihydroxy-1,2,3-trimethoxyxanthone, have been isolated along with seven known xanthones,
Tetsuro Fujita, Liu Da-You, Shinichi Ueda, Yoshio Takeda   +3 more
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Polygala tenuifolia Willd.

, 1992
Yuanzhi, Radix Polygalae, is the dry root of Polygala tenuifolia Willd. or P. sibirica L. (Polygalaceae) collected in the spring and fall. It is officially listed in the Chinese Pharmacopoeia and is used in traditional Chinese medicine as a mucolytic for the treatment of cough. It is further used as a sedative and for antiswelling purposes. Two galenic
Weici Tang, Gerhard Eisenbrand
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Polygala Sibirica and Polygala Tenuifolia

Quarterly Journal of Crude Drug Research, 1961
G. M. Hocking
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The Interaction Between Two Metabolites of Polygala tenuifolia and Cholinesterases

Protein & Peptide Letters, 2022
Objective: The work aimed to compare the binding between the two main components of Polygala tenuifolia Willd. and two cholinesterases (ChEs) by using a variety of spectral techniques. Methods: Two main components of Polygala tenuifolia Willd. included Tenuifolin (Ten) and Onjisaponin B (Onj B), and two ChEs included acetylcholinesterase (AChE) and ...
Chengxia, Gao, Huizhi, Du
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A new glycoside from Polygala tenuifolia Willd

Chinese Chemical Letters, 2008
Abstract A new triterpenoid glycoside, 3-β- O -β- d -glucopyranosyl presenegenin 28- O -α- l -arabipyranosyl(1 → 3)-β- d -xylopyranosyl(1 → 4)-[β- d -apiofuranosyl(1 → 3)]-α- l -rhamnopyranosyl(1 → 2)-[α- l -rhamnopyranosyl(1 → 3)]-β- d -fucopyranosyl ester (1) was isolated from the Polygala tenuifolia Willd., together with two known saponins ...
Tun Hai Xu, Gang Lv, Tong Hua Liu, Ya Juan Xu, Yun Shan Si, Sheng Xu Xie, Hong Feng Zhao, Dong Han, Dong Ming Xu   +8 more
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Structural elucidation and anti-neuroinflammatory activity of Polygala tenuifolia polysaccharide

International Journal of Biological Macromolecules, 2022
Polygala tenuifolia is extensively used to treat amnesia in traditional Chinese medicine, and pharmacological studies have reported the beneficial effects of P. tenuifolia on intelligence and cognition. In the present study, the crude polysaccharide alkali-extracted from P. tenuifolia roots (PTB) inhibited lipopolysaccharide-induced microglia/astrocyte
Zhiwei, Zeng, Xiao, Chang, Dawei, Zhang, Haiyun, Chen, Xiaoyan, Zhong, Yikun, Xie, Qian, Yu, Chunyan, Yan   +7 more
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Two xanthones from Polygala tenuifolia

Phytochemistry, 1991
Abstract Two new xanthones, onjixanthones I and II, and four known xanthones, 1,6-dihydroxy-3,7-dimethoxyxanthone, 1,7-dihydroxy-3-methoxyxanthone, 1,6-dihydroxy-3,5,7-trimethoxyxanthone and 1-hydroxy-3,6,7-trimethoxyxanthone were isolated from roots of Polygala tenuifolia.
Yukinobu Ikeya, Kô Sugama, Minoru Okada, Hiroshi Mitsuhashi   +3 more
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Antidepressant Principles of the Roots of Polygala tenuifolia

Journal of Natural Products, 2006
[(125)I]RTI-55-membrane binding assay-guided fractionation and separation of a water-soluble extract of the roots of Polygala tenuifolia gave five new oligosaccharide derivatives, polygalatenosides A-E (1-5). The structures of these new oligosaccharides were established on the basis of spectroscopic evidence.
Mo-Chi, Cheng, Chia-Ying, Li, Han-Chieh, Ko, Feng-Nien, Ko, Yun-Lian, Lin, Tian-Shung, Wu   +5 more
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Genotoxicity studies on the root extract of Polygala tenuifolia Willdenow

Regulatory Toxicology and Pharmacology, 2015
The root of Polygala tenuifolia Willdenow has been used for the treatment against insomnia, amnesia, depression, palpitations with anxiety, and memory improvement. However, there is no sufficient background information on toxicological evaluation of the root to given an assurance of safety for developing dietary supplements and functional foods.
Ki Young Shin, Beom Young Won, Hyun Jee Ha, Yeo Sang Yun, Hyung Gun Lee   +4 more
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[Chemical constituents of Polygala tenuifolia root].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2015
To study the chemical constituents from the root of Polygala tenuifolia.Silica gel,Sephadex LH-20 and ODS chromatographic techniques were used to study the chemical constituents of Polygala tenuifolia, and the chemical structures were elucidated by application of spectral data.Eight-compounds were obtained and their structure were identified as 7 ...
Liang-liang, Xu, Chuang-jun, Li, Jing-zhi, Yang, Yong-ming, Luo, Dong-ming, Zhang   +4 more
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