Results 101 to 110 of about 214 (132)
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An in vitro system to study cyclopeptide heterophyllin B biosynthesis in the medicinal plant Pseudostellaria heterophylla

Plant Cell, Tissue and Organ Culture (PCTOC), 2011
Plant cyclopeptides are a large group of small molecule metabolites found in a wide variety of plants, including traditional Chinese medicinal plants. Many of the cyclopeptides have highly unusual structures and potent biological activities. However, the majority of the cyclopeptides have not been studied for their biosynthetic mechanisms.
Wenyan Xu   +6 more
openaire   +1 more source

Heterophyllin B alleviates cognitive disorders in APP/PS1 model mice via the spleen-gut microbiota-brain axis

International Immunopharmacology
Accumulating evidence implicates both the brain-spleen axis and the gut microbiota-brain axis in Alzheimer's disease (AD) pathogenesis. While our previous work demonstrated heterophyllin B (HB) rectifies splenic Th1/Th2 imbalance and ameliorates cognitive deficits in Aβ1-42-induced AD mice, its potential modulation of the vagus nerve-spleen circuit ...
Jiahui, Jiang   +6 more
openaire   +2 more sources

Identification and functional characterization of prolyl oligopeptidase involved in the biosynthesis of heterophyllin B in Pseudostellaria heterophylla

Plant Physiology and Biochemistry
As a popular medicinal plant, Pseudostellaria heterophylla has been attached to great importance in herbal medicine. Heterophyllin B (HB), isolated from P. heterophylla, is a strongly pharmacologically active cyclic peptide. However, the key enzymes that catalyze the HB biosynthesis remain unidentified.
Guoping, Shu   +8 more
openaire   +2 more sources

SEPARATION OF THE CYCLOPEPTIDE HETEROPHYLLIN B BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY AND ITS APPLICATION AS A NEW STATIONARY PHASE FOR CAPILLARY GAS CHROMATOGRAPHY

Analytical Letters, 2002
From the root of Pseudostellaria heterophylla a cyclopeptide, heterophyllin B, was isolated by high-speed countercurrent chromatography. Fused-silica capillary columns containing heterophyllin B as a main stationary phase component were prepared. The chromatographic selectivity of heterophyllin B showed toward aromatics.
L. M. Yuan   +6 more
openaire   +1 more source

Anti-neoplastic effect of heterophyllin B on ovarian cancer via the regulation of NRF2/HO-1 in vitro and in vivo

Tissue and Cell
Heterophyllin B (HB) is a cyclic peptide with anti-neoplastic effect on many cancers. However, its effect and mechanism of action in ovarian cancer cells are still unknown.The primary objective of this study was to assess the impact of HB on the proliferation of ovarian cancer (OC) cells and delve into the underlying mechanisms involved.We performed ...
Linyu, Shi   +3 more
openaire   +2 more sources

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce   +2 more
exaly  

Synergistic effects of heterophyllin B with nintedanib against experimental pulmonary fibrosis in mice

Phytomedicine
Ce Chen   +6 more
openaire   +1 more source

Obesity and adverse breast cancer risk and outcome: Mechanistic insights and strategies for intervention

Ca-A Cancer Journal for Clinicians, 2017
Cynthia Morata-Tarifa   +1 more
exaly  

Multidisciplinary standards of care and recent progress in pancreatic ductal adenocarcinoma

Ca-A Cancer Journal for Clinicians, 2020
Aaron J Grossberg   +2 more
exaly  

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