1.Effect of Modified Chunzetang on Bladder Fibrosis and Detrusor Function in Rats with Neurogenic Bladder Urinary Retention Induced by Spinal Cord Injury via Regulating NF-κB/TGF-β1 Signaling Pathway
Zhenhua XU ; Yanjie LI ; Yafeng REN ; Haoyuan LIU ; Bochao ZHU ; Juan LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):95-103
ObjectiveTo investigate the therapeutic effect and mechanism of modified Chunzetang on bladder fibrosis and detrusor function in rats with neurogenic bladder urinary retention induced by spinal cord injury. MethodsIn this study, an improved Hassan Shaker spinal cord transection method was used to establish a model of neurogenic bladder urinary retention induced by spinal cord injury, and rats with a spinal cord injury behavior score of 0 were selected for follow-up experiments. The selected rats were randomly divided into a model group (normal saline gavage), low-dose traditional Chinese medicine (TCM) group (gavage of 14.4 g·kg-1 modified Chunzetang), high-dose TCM group (gavage of 28.8 g·kg-1 modified Chunzetang), positive drug group [intraperitoneal injection of 0.05 g·kg-1 nuclear transcription factor-κB (NF-κB) inhibitor pyrrolidine dithiocarbamate (PDTC)], and combination group (intraperitoneal injection of 0.05 g·kg-1 PDTC + gavage of 28.8 g·kg-1 modified Chunzetang). The rats in these groups were administrated with corresponding drugs once a day for four weeks. The BL-420s biofunction acquisition system was used in the experiment to calculate the urodynamic indexes, and the isolated bladder was quickly weighed. The detrusor traction experiment was used to record the minimum bladder contraction tension and frequency in each group. The pathological morphology and tissue fibrosis of detrusor in each group observed by Hematoxycin-eosin (HE) staining and Masson staining were compared. The expression level of α-smooth muscle actin (α-SMA) was detected by immunohistochemistry. Western blot was used to detect the protein expression of NF-κB p65, nuclear transcription factor-κB suppressor protein α (IκBα), transforming growth factor-β1 (TGF-β1), type Ⅰ collagen (ColⅠ), and type Ⅲ collagen (ColⅢ) in bladder tissue of rats in each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the changes in serum levels of IL-6, IL-1β, and TNF-α. ResultsCompared with that in the sham operation group, the pressure at the urinary leakage point in the model group decreased (P<0.01), and the bladder mass, bladder contractile tension, maximum bladder capacity, and bladder compliance increased (P<0.05,P<0.01). HE staining showed that the arrangement of bladder epithelial cells was disordered, and the pathological manifestations such as mucosa and myometria neutrophil infiltration were obvious. The lamina propria structure was destroyed, and the muscle fiber arrangement was disordered. The interstitial widening and tissue edema were obvious. Masson staining showed that the bladder wall of the model group had more collagen fiber deposition, and the degree of detrusor fibrosis was more severe. The content of detrusor in the visual field was reduced. At the same time, the protein expressions of NF-κB p65, TGF-β1, IκBα, ColⅠ, and ColⅢ in bladder tissue of rats in the model group were significantly increased (P<0.01), and the serum levels of IL-6, IL-1β, and TNF-α were significantly increased (P<0.05). Compared with that in the model group, the pressure at the urinary leakage point in the modified Chunzetang and positive drug groups was increased (P<0.05), and the wet bladder weight, minimum bladder contractile tension, maximum bladder capacity, and bladder compliance were restored (P<0.05, P<0.01). HE and Masson showed that the bladder epithelial cells were relatively neatly arranged, and the structure of the bladder lamina propria was relatively stable. The detrusor bundles were arranged in an orderly manner, and the interstitium was narrow. The degree of tissue edema was relatively low, and the degree of bladder detrusor fibrosis in the modified Chunzetang and positive drug groups was reduced, while the degree of bladder detrusor fibrosis in the positive drug group and combination groups was not obvious. The results of Western blot showed that the expression of NF-κB p65, IκBα, TGF-β1, ColⅠ, and ColⅢ in bladder tissue, as well as the serum levels of IL-6, IL-1β, and TNF-α in modified Chunzetang and positive drug groups were significantly lower, and the expression of bladder tissue-related proteins and the serum levels of IL-6, IL-1β, and TNF-α in the TCM groups decreased significantly with the increase in dose (P<0.05). The results of immunohistochemistry suggested that modified Chunzetang could fully affect the expression of α-SMA in bladder tissue. ConclusionModified Chunzetang can inhibit collagen deposition in bladder tissue of rats with urinary retention induced by spinal cord injury, delay the occurrence and development of bladder fibrosis, and protect the normal contractile function of bladder detrusor, and its mechanism may be related to inhibiting the NF-κB/TGF-β1 signaling pathway, reducing the production of NF-κB p65, IκBα, TGF-β1, ColⅠ, ColⅢ, and other related proteins, and protecting the muscle strength of detrusor.
2.Molecular biological research and molecular homologous modeling of Bw.03 subgroup
Li WANG ; Yongkui KONG ; Huifang JIN ; Xin LIU ; Ying XIE ; Xue LIU ; Yanli CHANG ; Yafang WANG ; Shumiao YANG ; Di ZHU ; Qiankun YANG
Chinese Journal of Blood Transfusion 2025;38(1):112-115
[Objective] To study the molecular biological mechanism for a case of ABO blood group B subtype, and perform three-dimensional modeling of the mutant enzyme. [Methods] The ABO phenotype was identified by the tube method and microcolumn gel method; the ABO gene of the proband was detected by sequence-specific primer polymerase chain reaction (PCR-SSP), and the exon 6 and 7 of the ABO gene were sequenced and analyzed. Homologous modeling of Bw.03 glycosyltransferase (GT) was carried out by Modeller and analyzed by PyMOL2.5.0 software. [Results] The weakening B antigen was detected in the proband sample by forward typing, and anti-B antibody was detected by reverse typing. PCR-SSP detection showed B, O gene, and the sequencing results showed c.721 C>T mutation in exon 7 of the B gene, resulting in p. Arg 241 Trp. Compared with the wild type, the structure of Bw.03GT was partially changed, and the intermolecular force analysis showed that the original three hydrogen bonds at 241 position disappeared. [Conclusion] Blood group molecular biology examination is helpful for the accurate identification of ambiguous blood group. Homologous modeling more intuitively shows the key site for the weakening of Bw.03 GT activity. The intermolecular force analysis can explain the root cause of enzyme activity weakening.
3.Exploring Multi-target Effect of Erzhiwan on Improving Myocardial Injury in Ovariectomized Mice Based on Non-targeted Metabolomics
Ying YANG ; Jing HU ; Pei LI ; Ruyuan ZHU ; Zhiguo ZHANG ; Haixia LIU ; Yanjing CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):74-84
ObjectiveTo explore the target of Erzhiwan in reducing myocardial injury in ovariectomized mice through non-targeted myocardial metabolomics combined with experimental verification. MethodsOvariectomized mouse model was selected, 40 female C57BL/6 mice were randomly divided into sham operation group, model group, estrogen group(estradiol valerate, 1.3×10-4 g·kg-1), Erzhiwan low and high dose groups(3.12, 9.36 g·kg-1), with 8 mice in each group. Each administration group was given the corresponding dose of Erzhiwan by gavage, and the sham operation group and model group were given equal volume of distilled water by gavage for 12 weeks. Echocardiography was used to detect cardiac function, hematoxylin-eosin(HE) staining was used to observe myocardial morphological changes, and enzyme-linked immunosorbent assay(ELISA) was used to detect the levels of estrogen, N-terminal pro-brain natriuretic peptide(NT-proBNP), hypersensitive troponin T(hs-TnT), total cholesterol(TC), triglyceride(TG), low density lipoprotein cholesterol(LDL-C), high density lipoprotein cholesterol(HDL-C), interleukin(IL)-1β, IL-18 and tumor necrosis factor-α(TNF-α). The non-targeted metabolomics of mouse myocardium were analyzed by ultra performance liquid chromatography-quadrupole-electrostatic field orbital trap high-resolution mass spectrometry(UPLC-Q-Exactive Orbitrap MS), and the differential metabolites and corresponding metabolic pathways were obtained. The mRNA expression levels of phosphatidylinositol 3-kinase(PI3K) and protein kinase B(Akt) in mouse myocardial tissues were detected by real-time fluorescence quantitative polymerase chain reaction(Real-time PCR), and the protein expression levels of PI3K, Akt, phosphorylated(p)-Akt were detected by Western blot. ResultsCompared with the sham operation group, the model group showed abnormal cardiac function, increased myocardial fiber space, cardiomyocyte atrophy, sarcoplasmic aggregation, and occasional dissolution or rupture of muscle fiber, the level of estrogen in the serum was decreased, the levels of NT-proBNP, hs-TnT, IL-1β, IL-18, TNF-α, TG, TC and LDL-C were increased, and the level of HDL-C was decreased(P<0.01). Compared with the model group, Erzhiwan could increase the level of estrogen, improve the abnormal cardiac function, reduce the pathological injury of myocardial tissue, decrease the levels of myocardial injury markers(NT-proBNP, hs-TnT) and inflammatory factors(IL-1β, IL-18, TNF-α), decrease the levels of TG, TC, LDL-C, and increased the level of HDL-C(P<0.01). The results of non-targeted myocardial metabolomics showed that 31 of the 162 differential metabolites between the model group and sham operation group were significantly adjusted after administration of Erzhiwan, which were mainly glycerol phospholipid metabolites. Pathway enrichment results showed that Erzhiwan mainly affected glycerophospholipid metabolic pathway, PI3K-Akt pathway, cyclic guanosine monophosphate(cGMP)-protein kinase G(PKG) pathway and other metabolic pathways. Compared with the sham operation group, the levels of phosphatidylcholine(PC, 11 types) and phosphatidylethanolamine(PE, 5 types) in mouse myocardial tissue of the model group were increased(P<0.05, P<0.01), and the mRNA and protein expressions of PI3K and p-Akt were decreased(P<0.05, P<0.01). Compared with the model group, the levels of PC(11 types) and PE(5 types) were decreased(P<0.05, P<0.01) in myocardial tissue of Erzhiwan group, the mRNA and protein expressions of PI3K and p-Akt were elevated(P<0.01). ConclusionErzhiwan can alleviate the pathological injury of myocardium in ovariectomized mice, improve the abnormal cardiac function, improve lipid metabolism disorder, and reduce the levels of myocardial injury markers and inflammatory factors, which involves a number of signaling and metabolic pathways in the heart, among which glycerophospholipid metabolism pathway and PI3K/Akt pathway may have key roles.
4.Effect of Yifei Jianpi Prescription on Lipopolysaccharide-induced Lung Immune Inflammatory Response in Rats Based on STAT1/IRF3 Pathway
Hongjuan YANG ; Yaru YANG ; Yujie YANG ; Zhongbo ZHU ; Quan MA ; Yanlin WU ; Hongmei LI ; Xuhui ZHANG ; Xiping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):146-155
ObjectiveTo observe the effect of Yifei Jianpi prescription on the of signal transducer and activator of transcription protein 1 (STAT1)/interferon regulatory factor 3 (IRF3) signaling pathway in a pneumonia model induced by lipopolysaccharide (LPS) and to explore the mechanism of Yifei Jianpi prescription in improving lung immune and inflammatory responses. MethodsSixty male SPF SD rats were used in this study. Ten rats were randomly assigned to the normal control group, and the remaining 50 were instilled with LPS in the trachea to establish a pneumonia model. After successful modeling, the rats were randomly divided into the model group, dexamethasone group (0.5 mg·kg-1), and Yifei Jianpi prescription high-dose (12 mg·kg-1), medium-dose (6 mg·kg-1), and low-dose (3 mg·kg-1) groups, with 10 rats in each group. Treatment was administered once daily, and the normal control and model groups received the same volume of normal saline. After 14 days, flow cytometry was used to detect the classification of whole blood lymphocytes. Enzyme-linked immunosorbent assay (ELISA) was used to measure serum levels of immunoglobulin G (IgG), immunoglobulin A (IgA), immunoglobulin M (IgM), and the content of tumor necrosis factor-α (TNF-α), interleukin-8 (IL-8), interleukin-6 (IL-6), and interleukin-10 (IL-10) in alveolar lavage fluid (BALF). Hematoxylin-eosin (HE) staining was used to observe lung tissue pathology and score the damage. Thymus weight, spleen weight, and wet-to-dry weight ratio (W/D) were recorded. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of STAT1, IRF3, IL-6, and interferon-alpha (IFN-α) in lung tissues, while Western blot was performed to assess the protein expression of STAT1, IRF3, IL-6, and IFN-α. ResultsCompared with the normal control group, the model group showed significantly increased proportion of B lymphocytes in peripheral blood, decreased proportions of NK cells and CD4+/CD8+ (P<0.05, P<0.01), decreased serum levels of IgG and IgA, significantly increased IgM levels (P<0.01), significantly elevated content of TNF-α, IL-6, and IL-8 in BALF, and significantly decreased IL-10 levels (P<0.01). Lung tissue damage was evident, with significant increases in thymus and spleen weights and a higher W/D ratio (P<0.01). The mRNA and protein expression of STAT1, IRF3, IFN-α, and IL-6 in lung tissues was significantly upregulated (P<0.05,P<0.01). Compared with the model group, the Yifei Jianpi prescription groups showed significantly reduced proportions of B lymphocytes in peripheral blood, increased proportions of NK cells and CD4+/CD8+ ratios (P<0.05, P<0.01), significantly increased serum levels of IgG and IgA, significantly decreased IgM levels (P<0.05, P<0.01), significantly reduced levels of TNF-α, IL-6, and IL-8 in BALF, and significantly increased IL-10 levels (P<0.01). Lung tissue damage was alleviated, thymus and spleen weights were significantly reduced, and the W/D ratio was markedly decreased (P<0.01). The mRNA and protein expression of STAT1, IRF3, IFN-α, and IL-6 in lung tissues was significantly downregulated (P<0.05, P<0.01). ConclusionYifei Jianpi prescription can alleviate lung tissue damage and improve immune and inflammatory responses in LPS-induced pneumonia rats. The mechanism may be related to the inhibition of STAT1/IRF3 signaling pathway activation.
5.Compound Xishu Granules Inhibit Proliferation of Hepatocellular Carcinoma Cells by Regulating Ferroptosis
Yuan TIAN ; Yuxi WANG ; Zhen LIU ; Yuncheng MA ; Hongyu ZHU ; Xiaozhu WANG ; Qian LI ; Jian GAO ; Weiling WANG ; Wenhui XU ; Ting WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):37-45
ObjectiveTo study the mechanism of compound Xishu granules (CXG) in inhibiting the proliferation of hepatocellular carcinoma cells by regulating ferroptosis. MethodsThe transplanted tumor model of human Huh7 was established with nude mice and the successfully modeled mice were randomized into model, Fufang Banmao (0.21 g·kg-1), low-dose (1.87 g·kg-1) CXG, medium-dose (3.74 g·kg-1) CXG, and high-dose (7.49 g·kg-1) CXG groups. Mice were administrated with drinking water or CXG for 28 days, and the body weight and tumor volume were measured every 4 days. Hematoxylin-eosin staining was employed to observe the histopathological changes of tumors. The cell-counting kit-8 (CCK-8) was used to examine the survival rate of Huh7 cells treated with different concentrations (0, 31.25, 62.5, 125, 250, 500, 1 000 mg·L-1) of CXG for 24 h and 48 h. CA-AM, DCFH-DA, and C11-BODIPY581/591 fluorescent probes were used to determine the intracellular levels of ferrous ion (Fe2+), reactive oxygen species (ROS), and lipid peroxide (LPO), respectively. The colorimetric method was employed to measure the levels of glutathione (GSH) and superoxide dismutase (SOD). Western blot was employed to determine the protein levels of glutathione peroxidase 4 (GPX4), transferrin receptor 1 (TFR1), and ferritin heavy chain 1 (FTH1), respectively. ResultsIn the animal experiment, compared with the model group, the drug treatment groups showed reductions in the tumor volume from day 12 (P<0.01). After treatment, the Fufang Banmao and low-, medium-, and high-dose CXG groups had lower tumor volume, relative tumor volume, and tumor weight than the model group (P<0.05), with tumor inhibition rates of 48.99%, 79.93%, 91.38%, and 97.36%, respectively. Moreover, the CXG groups had lower tumor volume and relative tumor volume (P<0.05 in all the three dose groups) and lower tumor weight (P<0.05 in medium-dose and high-dose groups) than the Fufang Banmao group. Compared with the model group, the drug treatment groups showed reduced number of tumor cells, necrotic foci with karyopyknosis, nuclear fragmentation, and nucleolysis, and the high-dose CXG group showed an increase in the proportion of interstitial fibroblasts. In the cell experiment, compared with the blank group, CXG reduced the survival rate of Huh7 cells in a dose-dependent manner after incubation for 24 h and 48 h (P<0.05). Compared with the blank group, the RSL3 group and the low-, medium-, and high-dose CXG groups showed a decrease in the relative fluorescence intensity of CA-AM and increases in the fluorescence intensity of DCFH-DA and fluorescence ratio of C11-BODIPY581/591, which indicated elevations in the levels of Fe2+ (P<0.01), ROS (P<0.05), and LPO (P<0.01), respectively. Compared with the blank group, the RSL3 and low-, medium-, and high-dose CXG groups showed lowered levels of GSH and SOD (P<0.05). In addition, the RSL3 group and the medium- and high-dose CXG groups showed down-regulated expression of GPX4 and FTH1 (P<0.05), and the low- and high-dose CXG groups presented up-regulated expression of TFR1 (P<0.05). ConclusionCXG suppresses the proliferation of hepatocellular carcinoma cells by inducing ferroptosis via downregulating the GSH-GPX4 signaling axis and increasing intracellular Fe2+and LPO levels.
6.Bioinformatics Reveals Mechanism of Schisandrin B in Inhibiting Ferroptosis to Ameliorate Methionine and Choline Deficiency-induced Fatty Liver Disease in Mice
Zhifeng ZHU ; Wenting LI ; Yongjun CAO ; Yuanyuan LIN ; Yifei LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):74-83
ObjectiveNonalcoholic fatty liver disease (NAFLD) is a metabolic stress liver injury. Ferroptosis is involved in the occurrence and development of NAFLD. Exploring the efficacy and mechanism of schisandrin B in treating NAFLD facilitates the development of strategies for the prevention and treatment of NAFLD. MethodsThe molecular structure of schisandrin B was obtained by searching against PubChem, and the related targets were predicted by SwissTargetPrediction. The active ingredients and their targets were retrieved from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and the high-throughput experiment- and reference-guide database of traditional Chinese medicine (HERB). GeneCards and FerrDb were searched for the targets of NAFLD and ferroptosis. The common targets were taken as the core targets, and the protein-protein interaction network of the core targets was established. DAVID was used for gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Finally, molecular docking was performed between schisandrin B and core targets, and the binding energy was calculated. C57BL/6 mice were fed with a methionine and choline-deficiency (MCD) diet for the modeling of NAFLD. Mice were randomized into normal, model, positive drug (essentiale), and low- and high-dose schisandrin B groups. The body mass and liver index of mice were measured after drug administration. The levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in the serum and those of total cholesterol (TC), triglyceride (TG), malondialdehyde (MDA), glutathione (GSH), and Fe2+ in the liver homogenate were measured by biochemical assay kits. The pathological changes of the liver tissue were observed by hematoxylin-eosin (HE) and red oil O staining. Enzyme-linked immunosorbent assay was employed to determine the levels of interleukin (IL)-6, IL-1β, tumor necrosis factor (TNF)-α, and 4-hydroxynonenal (4-HNE) in the serum. Western blotting and real-time PCR were employed to determine the protein and mRNA levels, respectively, of solute carrier family 7 member 11 (SLC7A11), solute carrier family 3 member 2 (SLC3A2), glutathione peroxidase 4 (GPX4), transferrin, and ferritin heavy chain (FTH) in the liver tissue. ResultsA total of 2 370, 2 547, and 1 451 targets of schisandrin B, NAFLD, and ferroptosis were obtained, in which 90 common targets were shared by the three. Enrichment analyses predicted 505 GO terms and 92 KEGG pathways. Molecular docking suggested that schizandrin B had strong binding affinity with the key targets of ferropstosis (SLC7A11 and SLC3A2). Animal experiments showed that schizandrin B significantly decreased the liver index, lowered the levels of ALT, AST, TC, TG, IL-6, IL-1β, and TNF-α, alleviated hepatocyte ballooning and inflammatory cell infiltration, and reduced lipid accumulation in the liver of NAFLD mice. In addition, schisandrin B significantly lowered the levels of MDA, 4-HNE, and Fe2+, elevated the level of GSH, up-regulated the protein and mRNA levels of SLC7A11, SLC3A2, and GPX4, and down-regulated the protein and mRNA levels of transferrin in the liver tissue. ConclusionSchisandrin B can alleviate NAFLD by inhibiting ferroptosis in hepatocytes.
7.Evaluation of Effect of Tongnaoyin on Blood-brain Barrier Injury in Acute Ischemic Stroke Patients Based on Dynamic Contrast-enhanced Magnetic Resonance Imaging
Yangjingyi XIA ; Shanshan LI ; Li LI ; Xiaogang TANG ; Xintong WANG ; Qing ZHU ; Hui JIANG ; Cuiping YUAN ; Yongkang LIU ; Zhaoyao CHEN ; Wenlei LI ; Yuan ZHU ; Minghua WU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):140-146
ObjectiveTo evaluate the effects of Tongnaoyin on the blood-brain barrier status and neurological impairment in acute ischemic stroke (AIS) patients with the syndrome of phlegm-stasis blocking collaterals by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). MethodsA total of 63 patients diagnosed with AIS in the Jiangsu Province Hospital of Chinese Medicine from October 2022 to December 2023 were enrolled in this study. According to random number table method,the patients were assigned into a control group (32 cases) and an observation group (31 cases). The control group received conventional Western medical treatment,and the observation group took 200 mL Tongnaoyin after meals,twice a day from day 2 of admission on the basis of the treatment in the control group. After 7 days of treatment,the patients were examined by DCE-MRI. The baseline data for two groups of patients before treatment were compared. The National Institute of Health Stroke Scale (NIHSS) score and modified Rankin Scale (mRS) score were recorded before treatment and after 90 days of treatment for both groups. The rKtrans,rKep,and rVe values were obtained from the region of interest (ROI) of the infarct zone/mirror area and compared between the two groups. ResultsThere was no significant difference in the NIHSS or mRS score between the two groups before treatment. After 90 days of treatment,the NIHSS and mRS scores declined in both groups,and the observation group had lower scores than the control group (P<0.05). After treatment,the rKtrans and rVe in the observation group were lower than those in the control group (P<0.01). ConclusionCompared with conventional Western medical treatment alone,conventional Western medical treatment combined with Tongnaoyin accelerates the repair of the blood-brain barrier in AIS patients,thereby ameliorating neurological impairment after AIS to improve the prognosis.
8.Traditional Chinese Medicine Treats Sepsis by Regulating PI3K/Akt Pathway: A Review
Zhu LIU ; Jiawei WANG ; Jing YAN ; Jinchan PENG ; Mingyao XU ; Liqun LI ; Sheng XIE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):314-322
Sepsis is a systemic inflammatory response syndrome caused by the invasion of pathogenic microorganisms such as bacteria. In addition to the manifestations of systemic inflammatory response syndrome and primary infection lesions, critical cases often have manifestations of organ hypoperfusion. The morbidity and mortality of sepsis have remained high in recent years, which seriously affect the quality of life of the patients. The pathogenesis of sepsis is complicated, in which uncontrollable inflammation is a key mechanism. The phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway plays a key role in mediating inflammation in sepsis. The available therapies of sepsis mainly include resuscitation, anti-infection, vasoactive drugs, intensive insulin therapy, and organ support, which show limited effects of reducing the mortality. Therefore, finding new therapeutic drugs is a key problem to be solved in the clinical treatment of sepsis. In recent years, studies have shown that traditional Chinese medicine (TCM) can regulate the PI3K/Akt pathway via multiple pathways, multiple effects, and multiple targets to inhibit inflammation and curb the occurrence and development of sepsis, which has gradually become a hot spot in the prevention and treatment of sepsis. Moreover, studies have suggested that TCM has unique advantages in the treatment of sepsis. TCM can regulate the PI3K/Akt signaling pathway to inhibit inflammation, reduce oxidative stress, and control apoptosis in the prevention and treatment of sepsis. Despite the research progress, a systematic review remains to be performed regarding the TCM treatment of sepsis by regulating the PI3K/Akt signaling pathway. After reviewing relevant papers published in recent years, this study systematically summarizes the relationship between PI3K/Akt pathway and sepsis and the role of TCM in the treatment of sepsis, aiming to provide new ideas for the potential treatment of sepsis and the development of new drugs.
9.Exploring Effect of Buchong Tiaojing Prescription on Ferroptosis in Ovarian Tissue of Rat Model of Diminished Ovarian Reserve and Its Mechanism from Perspective of NLRP3 Inflammasome
Yixuan WANG ; Zuang LI ; Yunling ZHENG ; Yucheng LI ; Songping LUO ; Ling ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):40-48
ObjectiveTo explore the therapeutic mechanism of Buchong Tiaojing prescription for rats with diminished ovarian reserve (DOR) from the perspectives of nucleotide-binding oligomerization domain (NOD)-like receptor protein 3 (NLRP3) inflammasome and ferroptosis. MethodsA total of 48 female SD rats were randomly divided into a normal group, a model group, low, medium, and high dose groups of Buchong Tiaojing prescription, and an MCC950 group, with eight rats in each group. Except the normal group, all the other groups were injected subcutaneously on the back of the neck with D-galactose to prepare the DOR rat model. From the 15th day of modeling, the rats in the low, medium, and high dose groups of Buchong Tiaojing prescription were subjected to gavage daily at doses of 14.4, 28.8, 57.6 g·kg-1, respectively. Rats in the MCC950 group were injected intraperitoneally with MCC950 at a dose of 10 mg·kg-1, once every other day. The interventions of all the groups lasted for 4 weeks. The estrous cycle of the rats was observed with vaginal exfoliated cell smear. Hematoxylin-eosin (HE) staining was performed to observe the development of follicles and corpus luteum in the ovary. Enzyme-linked immunosorbent assay (ELISA) was performed to detect the levels of serum sex hormones and interleukin-1β (IL-1β). Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot assay were performed to detect the mRNA and protein expression of NLRP3 inflammasome, acyl-CoA synthetase long-chain family member 4 (ACSL4), transferrin receptor 1 (TFR1), and glutathione peroxidase 4 (GPX4), and oxidative stress kits were used to detect ovarian superoxide dismutase (SOD) and malondialdehyde (MDA) levels. ResultsDuring the experiment, one rat died in the high dose group of Buchong Tiaojing prescription, and a total of 47 rats were finally included in the index tests and statistics. Compared with those in the normal group, rats in the model group had significantly disturbed estrous cycles, increased number of atretic follicles, and significant disorder of serum sex hormones. The mRNA and protein expression of NLRP3 inflammasome, ACSL4, and TFR1 in ovarian tissue was up-regulated (P<0.01), while that of GPX4 was significantly down-regulated (P<0.01). The SOD content in the ovary was decreased significantly, while the MDA level was increased (P<0.01). After drug intervention, the estrous cycle of rats was basically resumed, and the follicles at all levels were more structurally intact and significantly increased in number. Additionally, the levels of serum sex hormones and IL-1β were significantly improved. The mRNA and protein expression of NLRP3 inflammasome, ACSL4, and TFR1 were down-regulated, while that of GPX4 was significantly up-regulated, and the ovarian oxidative stress was alleviated (P<0.05, P<0.01), especially in the high dose group of Buchong Tiaojing prescription and the MCC950 group. ConclusionInflammatory injury and ferroptosis occur in the ovaries of DOR rats, and the Buchong Tiaojing prescription is able to inhibit ovarian NLRP3 inflammasome, alleviate the degree of ovarian ferroptosis, and improve ovarian reserve.
10.Mechanism of in Vitro and in vivo Models of Osteoporosis Regulation by Active Ingredients of Traditional Chinese Medicine: A Review
Ming YANG ; Jinji WANG ; Xuefeng ZHUANG ; Xiaolei FANG ; Zhijie ZHU ; Huiwei BAO ; Lijing LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):281-289
Osteoporosis is a common bone disease, whose incidence is still on the rise, posing great challenges to patients and society. This review mainly studies the pathogenesis of osteoporosis from the aspects of oxidative stress, inflammatory response, and glucolipotoxicity-induced injury and clarifies the efficacy and mechanism of some active ingredients of traditional Chinese medicine against osteoporosis through the integration of in vitro and in vivo experiments. The experimental results suggest that some active ingredients can improve bone resorption markers and maintain bone homeostasis by modulating inflammation, oxidative stress, etc. These active ingredients regulate osteoporosis through the receptor activator of nuclear transcription factor-κB (NF-κB) ligand (RANKL) pathway, osteoprotegerin (OPG) pathway, Wnt/β-catenin pathway, NF-κB pathway, mitogen-activated protein kinase (MAPK) pathway, adenosine monophosphate (AMP)-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) pathway, and oxidative stress pathway. This review provides ideas for the progress of the prevention and treatment of osteoporosis with the active ingredients of traditional Chinese medicine, aiming to provide new potential lead compounds and reference for the development of innovative drugs and clinical therapy for the treatment of osteoporosis.

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