Fetal mice dermal mesenchymal stem cells promote wound healing by inducing M2 type macrophage polarization.

Background: Mesenchymal stem cells, found in various tissues, possess significant healing and immunomodulatory properties, influencing macrophage polarization, which is essential for wound repair. However, chronic wounds present significant therapeutic challenges, requiring novel strategies to improve healing outcomes.

Aim: To investigate the potential of fetal dermal mesenchymal stem cells (FDMSCs) in enhancing wound healing through modulation of macrophage polarization, specifically by promoting the M2 phenotype to address inflammatory responses in chronic wounds.

[Analysis of chemical constituents of different processed products of Strychni Semen based on UPLC-Q-TOF-MS technique].

This study utilized ultra-performance liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS) to rapidly analyze and identify the chemical constituents in five processed products of Strychni Semen(raw, sand-roasted, fried, urine-soaked, and vinegar-processed products). Using PeakView software to extract compound information, 50 chemical components were identified based on retention time, accurate molecular ion peaks, secondary mass spectrometry data, and comparison with reference standards and relevant literature. Specifically, 41 components were identified in raw Strychni Semen, 48 in sand-roasted, 43 in fried, 41 in urine-soaked, and 40 in vinegar-processed products.

[Research pro gress on historical processing evolution, chemical constituents,and pharmacological effects of Plantaginis Semen].

Plantaginis Semen is a traditional Chinese medicine(TCM) commonly used in clinical practice in China, which has the effects of clearing heat, inducing diuresis for treating stranguria, draining dampness and relieving diarrhea, brightening eyes, and eliminating phlegm. Plantaginis Semen has a long history of processing. In the Han Dynasty, there were records of stir-frying, and then processing with wine, processing with salt water, processing with rice water, and other processing methods appeared.