ArticleBMC complementary and alternative medicine2018
Bioactive components and mechanisms of Chinese poplar propolis alleviates oxidized low-density lipoprotein-induced endothelial cells injury.
Article in BMC complementary and alternative medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.
- Propolis effects on blood sugar and lipid metabolism, inflammatory indicators, and oxidative stress in people with type 2 diabetes: a systematic review and meta-analysis.Frontiers in nutrition · 2025Pooled it
- Recent Update on the Anti-Inflammatory Activities of Propolis.Molecules (Basel, Switzerland) · 2022Pooled it
- Protective effects of propolis against metaflumizone induced cardiotoxicity through modulation of oxidative stress, inflammation, and the PI3K/Akt/mTOR pathway.Archives of toxicology · 2026Article
- Alleviation of Aflatoxin B1-Induced Hepatic Damage by Propolis: Effects on Inflammation, Apoptosis, and Cytochrome P450 Enzyme Expression.Current issues in molecular biology · 2026Article
- Nature's Remedies: Exploring the Potential of Propolis to Alleviate Non-Motor Manifestations of Parkinson's Disease.Molecules (Basel, Switzerland) · 2025Review
- Effect of Propolis Extracts on OxLDL and LOX-1 Levels in ApoE Knockout Mice Fed a High Fat Diet.Life (Basel, Switzerland) · 2025Article
- Propolis: A Natural Substance with Multifaceted Properties and Activities.International journal of molecular sciences · 2025Review
- Review
- Review
- Computational Study of Asian Propolis Compounds as Potential Anti-Type 2 Diabetes Mellitus Agents by Using Inverse Virtual Screening with the DIA-DB Web Server, Tanimoto Similarity Analysis, and Molecular Dynamic Simulation.Molecules (Basel, Switzerland) · 2022Article
- Oxidized low-density lipoprotein activates extracellular signal-regulated kinase signaling to downregulate sortilin expression in liver sinusoidal endothelial cells.Journal of gastroenterology and hepatology · 2021Article
- Review
- Supplementation of Kiwifruit Polyphenol Extract Attenuates High Fat Diet Induced Intestinal Barrier Damage and Inflammation via Reshaping Gut Microbiome.Frontiers in nutrition · 2021Article
- Potential Protective Effects of the Water-Soluble Chinese Propolis on Hypertension Induced by High-Salt Intake.Clinical and translational science · 2020Article
- The Mechanistic Target of Rapamycin (mTOR): Novel Considerations as an Antiviral Treatment.Current neurovascular research · 2020Review
- An Evaluation of the DNA-Protective Effects of Extracts fromOxidative medicine and cellular longevity · 2019Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundPropolis, a polyphenol-rich natural product, has been used as a functional food in anti-inflammation. However, its bioactive components and mechanisms have not been fully elucidated. To discover the bioactive components and anti-inflammatory mechanism, we prepared and separated 8 subfractions from ethyl acetate extract of Chinese propolis (EACP) and investigated the mechanism in oxidized low density lipoprotein (ox-LDL) induced human umbilical vein endothelial cells (HUVECs) damage.
methodsEight subfractions were prepared and separated from ethyl acetate extract of Chinese propolis (EACP) with different concentrations of methanol-water solution, and analysed its chemical constituents by HPLC-DAD/Q-TOF-MS. Then 80% confluent HUVECs were stimulated with 40 μg/mL ox-LDL. Cell viability and apoptosis were evaluated by Sulforhodamine B (SRB) assay and Hoechst 33,258 staining, respectively. Levels of caspase 3, PARP, LC3B, p62, p-mTOR, p-p70S6K, p-PI3K, p-Akt, LOX-1 and p-p38 MAPK were assessed by western blotting and immunofluorescence assay, respectively. Reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) were measured with fluorescent probes.
resultsEach subfraction exhibited similar protective effect although the contents of chemical constituents were different. EACP attenuated ox-LDL induced HUVECs apoptosis, depressed the ratio of LC3-II/LC3-I and enhanced the p62 level. In addition, treatment with EACP also activated the phosphorylation of PI3K/Akt/mTOR, and deactivated the level of LOX-1 and phosphorylation of p38 MAPK. The overproduction of ROS and the damage of MMP were also ameliorated after ECAP treatment.
conclusionsThese findings indicated that the bioactive component of propolis on anti-inflammatory activity was not determined by a single constituent, but a complex interaction including flavonoids, esters and phenolic acids. EACP attenuated ox-LDL induced HUVECs injury by inhibiting LOX-1 level and depressed ROS production against oxidative stress in ox-LDL induced HUVECs, further to activate PI3K/Akt/mTOR pathway and deactivate p38 MAPK to inhibit apoptosis and autophagy, which provide novel insights into the potential application of propolis on modulating chronic inflammation.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.