Fisetin is isolated from many fruits and vegetables and has been confirmed to improve airway hyperresponsiveness in asthmatic mice. However, whether fisetin reduces inflammatory response and oxidative stress in bronchial epithelial cells is unclear. Here, BEAS-2B human bronchial epithelial cells were treated with various concentrations of fisetin and then stimulated with tumor necrosis factor-α (TNF-α) or TNF-α/interleukin-4. In addition, ovalbumin-sensitized mice were treated with fisetin to detect inflammatory mediators and oxidative stress expression. Fisetin significantly reduced the levels of inflammatory cytokines and chemokines in TNF-α-stimulated BEAS-2B cells. Fisetin also attenuated intercellular adhesion molecule-1 expression in TNF-α-stimulated BEAS-2B cells, suppressing THP-1 monocyte adhesion. Furthermore, fisetin significantly suppressed airway hyperresponsiveness in the lungs and decreased eosinophil numbers in the bronchoalveolar lavage fluid of asthmatic mice. Fisetin decreased cyclooxygenase-2 expression, promoted glutathione levels, and decreased malondialdehyde levels in the lungs of asthmatic mice. Our findings indicate that fisetin is a potential immunomodulator that can improve the pathological features of asthma by decreasing oxidative stress and inflammation.

Sophoraflavanone G (SG), isolated from Sophora flavescens, has anti-inflammatory and anti-tumor bioactive properties. We previously showed that SG promotes apoptosis in human breast cancer cells and leukemia cells and reduces the inflammatory response in lipopolysaccharide-stimulated macrophages. We investigated whether SG attenuates airway hyper-responsiveness (AHR) and airway inflammation in asthmatic mice. We also assessed its effects on the anti-inflammatory response in human tracheal epithelial cells. Female BALB/c mice were sensitized with ovalbumin, and asthmatic mice were treated with SG by intraperitoneal injection. We also exposed human bronchial epithelial BEAS-2B cells to different concentrations of SG to evaluate its effects on inflammatory cytokine levels. SG treatment significantly reduced AHR, eosinophil infiltration, goblet cell hyperplasia, and airway inflammation in the lungs of asthmatic mice. In the lungs of ovalbumin-sensitized mice, SG significantly promoted superoxide dismutase and glutathione expression and attenuated malondialdehyde levels. SG also suppressed levels of Th2 cytokines and chemokines in lung and bronchoalveolar lavage samples. In addition, we confirmed that SG decreased pro-inflammatory cytokine, chemokine, and eotaxin expression in inflammatory BEAS-2B cells. Taken together, our data demonstrate that SG shows potential as an immunomodulator that can improve asthma symptoms by decreasing airway-inflammation-related oxidative stress.

Uterine fibroids (UFs) are prevalent benign tumours affecting women; they often present with symptoms such as excessive menstrual bleeding, pelvic discomfort, recurrent pregnancy loss, and infertility. High-intensity focused ultrasound (HIFU) has emerged as a non-invasive treatment option. Recent studies suggest that Chinese herbal medicines (CHMs) may enhance the efficacy of HIFU, but a comprehensive evaluation of their combined effects is lacking. To evaluate the effectiveness of CHMs combined with HIFU for UFs through a meta-analysis on randomised controlled trials (RCTs) and identify core herbal patterns that may potentiate HIFU outcomes. English and Chinese databases were searched to identify relevant studies until May 2024. The risk of bias was evaluated using the Cochrane Risk of Bias 2 tool. A meta-analysis was performed using RevMan 5.4 software. The primary outcomes were changes in UF volume and clinical efficacy; secondary outcomes were changes in uterus volume, Traditional Chinese Medicine syndrome scores, incidence of recurrences and adverse reactions. Network analysis was performed to identify core herbs. Nineteen RCTs were included. The effects of reducing UFs volumes in the CHM group were more significant than those in the control group (SMD:0.34; 95 % CI:0.44 to -0.23, p < 0.001, I² = 0 %). The clinical effectiveness rate was higher in the CHM group than with HIFU therapy alone (risk ratio: 1.13; 95 % CI: 1.08 to 1.18; p < 0.001; I² = 37 %). Core pattern analysis revealed a total of 26 single herbs and 93 commonly used herbal combinations. Among these, Curcumae Rhizoma, Sparganii Rhizoma, Astragalus membranaceus, Poria cocos, Paeonia suffruticosa, and Trionyx sinensis were the most frequently utilized herbs. This is the first meta-analysis to evaluate the clinical effectiveness of combining CHMs with HIFU for UFs, integrating both quantitative outcome and computational core herb pattern analyses to identify CHMs that may enhance the efficacy of HIFU. In addition to demonstrating superior clinical effectiveness, this study proposes a novel hypothesis: core CHMs may enhance HIFU efficacy through a dual-phase mechanism-promoting apoptosis during thermal ablation and modulating fibrotic and proliferative signaling pathways in the post-ablation phase. These findings provide an evidence-based foundation for developing integrated therapeutic strategies.