Results 101 to 110 of about 680 (136)

The immunostimulating activities of anti-tumor Polysaccharides from Pseudostellaria heterophylla

Immunopharmacology, 1994
We have previously shown that a mitogenic fraction (PH-I) separated from Pseudostellaria heterophylla exhibits both immunomodulatory and anti-tumor activities. In the present study, PH-I was further purified by gel filtration chromatography and the resulting three fractions (PH-I A, PH-I B and PH-I C) were assessed for their anti-tumor activity in vivo.
C K, Wong, K N, Leung, K P, Fung, Y M, Choy   +3 more
openaire   +2 more sources

A new cyclic peptide from the fibrous root of Pseudostellaria heterophylla

Natural Product Research, 2020
A new cyclic peptide, Pseudostellarin K (1), together with thirteen known compounds, including two cyclic peptides (2 and 3), one β-carboline alkaloid (4), two amides (5 and 6), three phenylpropanoids (7-9) and other compounds (10-14), were isolated from the fibrous root of Pseudostellaria heterophylla.
Xiao-Fei, Zhao, Qian, Zhang, Han-Tao, Zhao, Yan-da, Zhang, Han-Ru, Liu, Lu-Jiang, Yuan, Qian-Feng, Chen   +6 more
openaire   +2 more sources

Cloning and analyzing a squalene synthase gene in Pseudostellaria heterophylla

Gene Reports, 2018
Abstract Triterpene saponins are primary bioactive compounds in the tuberous roots of Pseudostellaria heterophylla, which is one of well-known traditional Chinese medicines. Squalene synthase (SQS) is the key speed-limiting enzyme of saponin biosynthesis pathway. Here, we cloned and analyzed a SQS gene in P. heterophylla.
Guanshui Chen, Wenjie Yu, Lanlan Ke, Daren Pan   +3 more
openaire   +1 more source

[A research on fast-propagation of Pseudostellaria heterophylla].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2003
The result of fast-propagation of Pseudostellaria heterophylla by tissue culture showed that the best explant was stem tip. It also showed the suitable inducement mediums were MS + 6-BA 2.0 mg/L + NAA 0.2 mg/L or MS + 6-BA 4.0 mg/L + NAA 0.4 mg/L for the clustered bud, MS + 2,4-D 4.0 mg/L + Kt 0.5 mg/L or MS + 2,4-D 3.0 mg/L + Kt 0.5 mg/L for the ...
Xianhe, Tan, Jianguo, Chao, Yu, Zhang, Ying, Zhang   +3 more
openaire   +1 more source

Research on quality regionalization of cultivated Pseudostellaria heterophylla based on climate factors

China Journal of Chinese Materia Medica, 2016
Maxent model was applied in the study to filtering the climate factors layer by layer. Polysaccharides and pseudostellarin B the two internal quality evaluation index were combined to analyse the interlinkages between climate factors and chemical constituents in order to search for the critical climate factors of Pseudostellaria heterophylla.
Chuan-Zhi, Kang, Tao, Zhou, Wei-Ke, Jiang, Lan-Ping, Guo, Xiao-Bo, Zhang, Cheng-Hong, Xiao, Dan, Zhao   +6 more
openaire   +2 more sources

Tumor necrosis factor eliciting fractions separated from Pseudostellaria heterophylla

International Journal of Immunopharmacology, 1994
Tumor necrosis factor (TNF) could be induced in the serum of ICR mice bearing Ehrlich ascites tumor (EAT) cells by the i.v. administration of antitumor fractions (PH-I A, PH-I B, PH-I C, PH-I Ca, PH-I Cb) separated from the roots of Pseudostellaria heterophylla.
C K, Wong, K N, Leung, K P, Fung, P K, Pang, Y M, Choy   +4 more
openaire   +2 more sources

[Seed dormancy mechanisms of Pseudostellaria heterophylla and its germination characteristics].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2012
Seed dormancy mechanisms, breaking dormancy and the optimal germinating conditions were studied to improve reproductive efficiency and quality standard of Pseudostellaria heterophylla.The P. heterophylla seeds were stratified into wettish sand for 65 days under the temperature of -2-3 degrees C, embryo length and germination dynamic change of seeds ...
Chenghong, Xiao, Weike, Jiang, Tao, Zhou, Qiang, Ai, Houxi, Xiong, Mingwu, Liao   +5 more
openaire   +2 more sources

[Chemical constituents from roots Pseudostellaria heterophylla].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2008
To study the chemical constituents of Pseudostellaria heterophylla.The compounds were isolated by silica gel and Sephadex LH-20 column chromatography and purified by recrystallization. Their structures were elucidated on the basis of physicochemical properties and spectral analysis.Seven compounds were identified as 2-minalin (1) , 3-furfuryl pyrrole-2-
Jian, Zhang, You-bin, Li, Da-wei, Wang, Zhi-qi, Yin, Jin-ao, Duan   +4 more
openaire   +1 more source

The Induction of Cytokine Gene Expression in Murine Peritoneal Macrophs by Pseudostellaria Heterophylla

Immunopharmacology and Immunotoxicology, 1994
We have previously shown that a mitogenic fraction (PH-I) separated from Pseudostellaria heterophylla (P. heterophylla) could act as a priming agent for the release of tumor necrosis factor-alpha (TNF-alpha) in mice. In the present study, PH-I was further purified by gel filtration chromatography and the resulting three fractions (PH-I A, PH-I B and PH-
C K, Wong, K N, Leung, M C, Fung, K P, Fung, Y M, Choy   +4 more
openaire   +2 more sources

[Observation on biological characteristics of wild Pseudostellaria heterophylla].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2012
To study the status and regular pattern in growing development of wild Pseudostellaria heterophylla.Observed and studied on wild Pseudostellaria heterophylla during growth periods continuously.The growing development of Pseudostellaria heterophylla could be divided into three stages: asexual reproduction stage, coexistence of asexual and sexual ...
Jun, Yang, De-Qun, Wang, Yong, Yao, Xue-Fei, Jin   +3 more
openaire   +1 more source