Publications by authors named "Junna Song"

Scope: Mitochondrial DNA (mtDNA) released into the cytosol serves as a member of damage-associated molecular patterns to initiate inflammatory responses. Mangiferin is a xanthonoid derivative, usually isolated from plants including mangoes and iris unguicularis. This study aims to investigate whether mangiferin prevents mtDNA accumulation in the cytosol with a focus on deoxyribonuclease 2 (DNase 2) protection from oxidative damage.

View Article and Find Full Text PDF

Inflammation is closely associated with progression of vascular remodeling. The NLRP3 inflammasome is the key molecule that promotes vascular remodeling via activation of vascular adventitia fibroblast (VAF) proliferation and differentiation. VAFs have a vital effect on vascular remodeling that could be improved using hydroxysafflower yellow A (HSYA).

View Article and Find Full Text PDF

(Hooker) Sweet is a semi deciduous or deciduous shrub belonging to the genus Leguminosae. has been used as a folk medicinal herb in Nepal and was cultivated all over the world as an ornamental plant. In the present study, we sequenced the entire genome of the chloroplast of .

View Article and Find Full Text PDF

(Franch.) Pavol. is a deciduous or evergreen shrubs belonging to the genus Fabaceae.

View Article and Find Full Text PDF

In the present study, a simple and environmentally friendly extraction method based on natural deep eutectic solvents (NADESs) was established to extract four bioactive steroidal saponins from Dioscoreae Nipponicae Rhizoma (DNR). A total of twenty-one types of choline chloride, betaine, and L-proline based NADESs were tailored, and the NADES composed of 1:1 molar ratio of choline chloride and malonic acid showed the best extraction efficiency for the four steroidal saponins compared with other NADESs. Then, the extraction parameters for extraction of steroidal saponins by selected tailor-made NADES were optimized using response surface methodology and the optimal extraction conditions are extraction time, 23.

View Article and Find Full Text PDF
Article Synopsis
  • Dioscoreae Nipponicae Rhizoma, a traditional Chinese medicine derived from Dioscorea nipponica, is categorized into wild and cultivated varieties based on growth patterns.
  • A reliable fingerprinting method using HPLC and ELSD was established, revealing six common peaks that can be used to evaluate the quality of Dioscoreae Nipponicae Rhizoma samples with a high similarity score of over 0.950.
  • The study also identified significant differences in the steroidal saponin content between wild and cultivated samples, with protodioscin and protogracillin serving as key chemical markers for distinguishing the two.
View Article and Find Full Text PDF

Adipose dysfunction is closely associated with alcoholic liver disease. The impact of mangiferin on ethanol-induced liver injury and the probable underlying molecular mechanism has not been sufficiently addressed. In the present study, mice were subjected to a chronic plus a single binge ethanol feeding to induce liver injury.

View Article and Find Full Text PDF

The abscisic acid (ABA) receptor binds to ABA in plants and can activate the ABA signaling pathway to initiate stress resistance. Sour jujube (Ziziphus jujuba Mill. var.

View Article and Find Full Text PDF

Cardiac injury is followed by fibrosis, characterized by myofibroblast activation. Excessive deposition of extracellular matrix (ECM) impairs the plasticity of myocardium and results in myocardial systolic and diastolic dysfunction. Mangiferin is a xanthonoid derivative rich in plants mangoes and iris unguicularis, exhibiting the ability to ameliorate metabolic disorders.

View Article and Find Full Text PDF

Gentianella acuta (G. acuta) is one of the most commonly used herbs in Chinese Mongolian medicine for the treatment of heart disease. Previously, it was found that G.

View Article and Find Full Text PDF

Background: Lenvatinib is a newly approved molecular targeted drug for the treatment of advanced hepatocellular carcinoma (HCC). However, the high cost associated with this treatment poses a huge financial burden on patients and the entire public health system. Therefore, there is an urgent need to develop novel strategies that enhance the antitumor effect of lenvatinib.

View Article and Find Full Text PDF

Hexokinase-II (HK-II) confers protection against cell death and this study was designed to investigate the effect of mangiferin on the regulation of mitochondrial HK-II. In vessel endothelial cells, saturated fatty acid palmitate (PA) stimulation induced HK-II detachment from mitochondria due to cellular acidification. Mangiferin reduced lactate accumulation by improving pyruvate dehydrogenase activity, promoted Akt translocation to HK-II and prevented HK-II detachment from mitochondria.

View Article and Find Full Text PDF

Roscovitine is a selective CDK inhibitor originally designed as anti-cancer agent, which has also been shown to inhibit proliferation in vascular smooth muscle cells (VSMCs). However, its effect on vascular remodeling and its mechanism of action remain unknown. In our study, we created a new intimal hyperplasia model in male Sprague-Dawley rats by trypsin digestion method, which cause to vascular injury as well as the model of rat carotid balloon angioplasty.

View Article and Find Full Text PDF

Purpose: Mangiferin is a naturally occurring glucosylxanthone with beneficial effects on glucose and lipid homeostasis. This study investigates the potential therapeutic effect of Mangiferin in perivascular adipose tissue (PVAT) and whether it contributes to regulating insulin action in the endothelium.

Methods: Palmitate challenge evoked ROS-associated endoplasmic reticulum stress (ER stress) and NLRP3 inflammasome activation in PVAT.

View Article and Find Full Text PDF

Background: Endothelial dysfunction is tightly associated with cardiovascular complications in diabetic patients. This study aims to investigate the effects of mangiferin on the regulation of endothelial homeostasis under endoplasmic reticulum stress (ER stress) conditions.

Results: High glucose (25 mmol/L) exposure induced ER stress and promoted ROS production in endothelial cells.

View Article and Find Full Text PDF

To investigate whether resveratrol could restore the lysophosphatidylcholine (LPC)-induced loss of endothelium-dependent relaxation in in vitro cultured rat aorta tissue, first the effect of resveratrol on the loss of EDR was examined in this preparation. The results showed that resveratrol effectively attenuated the inhibition of LPC (10 μM) on both endothelium-derived relaxing factor (EDRF) and endothelium-derived hyperpolarizing factor (EDHF) in a concentration-dependent manner (1, 10, 100 μM). In addition, resveratrol inhibited elevated K+-induced vascular contracture, but had no significant effects on ACh (1 μM)-induced endothelium-dependent relaxation (EDR).

View Article and Find Full Text PDF

Ethnopharmacological Relevance: Modified Si-Miao-San (mSMS) is a prescription modified from Si-Miao-San which is an ancient Chinese prescription used to treat various ailments.

Aim Of The Study: Modified Si-Miao-San (mSMS) has been used for the treatment of infectious and inflammatory disorders in the clinic. This study was aimed to investigate its anti-inflammatory activity and underlying mechanism at cellular and molecular levels.

View Article and Find Full Text PDF

Luteolin, a naturally occurring polyphenol flavonoid, has demonstrated some beneficial modulation toward the endothelium. This study aims to investigate the effects of luteolin on lysophosphatidylcholine (LPC)-induced apoptosis, a key event in the pathogenesis of atherosclerosis, in endothelial cells. Luteolin reduced not only LPC-induced cell death but also lactate dehydrogenase (LDH) leakage.

View Article and Find Full Text PDF