1.Efficacy and Application Characteristics of Cold Chinese Medicines Based on Chinese Pharmacopoeia (2020 Edition)
Lu YUE ; Yilong HU ; Jingying YANG ; Xiangxiang WU ; Mingsan MIAO ; Ming BAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):241-248
ObjectiveTo provide a reference for the rational clinical use of cold Chinese medicines by sorting and analyzing their properties, flavors, meridian tropism, primary therapeutic indications, methods of administration, dosages, and precautions as recorded in the 2020 edition of Pharmacopoeia of the People's Republic of China (Chinese Pharmacopoeia). MethodsCold Chinese medicines for internal and external use included in the 2020 edition of Chinese Pharmacopoeia were entered one by one, and their efficacy, properties, flavors, meridian tropism, methods of administration, dosages, and usage precautions were statistically classified and summarized to guide clinical medication use. ResultsA total of 259 cold Chinese medicines for internal use were included and categorized into 18 efficacy groups, mainly comprising heat-clearing drugs, water-excreting and dampness-draining drugs, and phlegm-resolving, cough- and asthma-relieving drugs. Their predominant flavors were bitter, sweet, and pungent, and they primarily entered the liver, lung, and stomach meridians. The main methods of administration included decocting first, grinding into powder for oral use, or preparing into pills or powders, with most dosages ranging from 9 to 15 g. A total of 83 cold Chinese medicines for external use were included, involving 16 efficacy categories. Their main flavors were bitter, sweet, and pungent, primarily entering the liver, lung, and large intestine meridians. The main external application methods were grinding into powder for topical use or preparing decoctions for fumigation and washing, with most dosages ranging from 9 to 15 g. Whether for internal or external use, cold Chinese medicines should be used with caution or contraindicated in pregnant women. ConclusionThe cold Chinese medicines included in the 2020 edition of the Chinese Pharmacopoeia are mainly suitable for patients with carbuncles, swellings, and coughs. However, in clinical practice, it is necessary to strictly follow the principles of syndrome differentiation and treatment, pay attention to administration methods and dosages, and use cold medicines rationally and effectively to improve clinical efficacy.
2.A Review of Methods for Establishing and Evaluating Animal Models of Stroke
Yunrong YANG ; Wenyu WU ; Yue TAN ; Guofeng YAN ; Yao LI ; Jin LU
Laboratory Animal and Comparative Medicine 2026;46(1):94-106
Stroke is one of the leading causes of disability and mortality worldwide. Research into its mechanisms and the development of therapeutic strategies heavily rely on animal models that accurately replicate the pathological features of human disease. An ideal animal model for stroke should not only reproduce the neurological deficits and pathological changes observed in clinical patients but also demonstrate good reproducibility and translational value. This review focuses on the preparation and evaluation methods of ischemic stroke animal models. Firstly, it elaborates on the selection criteria, advantages, and disadvantages of experimental animals, including rodents (rats, mice) and non-rodents (non-human primates, miniature pigs, rabbits, zebrafish). Secondly, it provides a detailed overview of the modeling principles, key procedures, and application scopes for ischemic stroke models and hemorrhagic stroke models. Furthermore, the review summarizes advances in the applications of emerging technologies—including gene editing [e.g., clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) gene editing], multimodal imaging (e.g., two-photon microscopy, photoacoustic imaging), artificial intelligence, optogenetics, 3D bioprinting, organoid models, and multi-omics–in model optimization, precise assessment, and mechanistic investigation. Finally, based on a systematic analysis of relevant domestic and international literature from 2019 to 2024, this review discusses model selection strategies based on research objectives, a multidimensional evaluation system encompassing behavioral, imaging, and molecular pathological assessments, and envisions future directions involving technological integration to achieve model precision and individualization. This article aims to provide a comprehensive methodological reference to help researchers select appropriate animal models of stroke according to specific scientific questions.
3.Clinical Efficacy of Yiqi Yangyin Huoxue Prescription in Treatment of Cathartic Colon and Analysis of Influencing Factors of Disease Severity
Youcheng HE ; Jingyi SHAN ; Fengru JIANG ; Yue WU ; Chunyu ZHOU ; Lu HANG ; Yan ZHOU ; Lian MO ; Shuyu CAI ; Keyi PAN ; Lifeng WEI ; Jianye YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):173-184
ObjectiveTo observe the clinical efficacy of the Yiqi Yangyin Huoxue prescription (YYHP) in the treatment of cathartic colon (CC) and its effects on fecal short-chain fatty acids (SCFAs), and to explore the correlations among CC severity indicators and between these indicators and patient history. MethodsAccording to the inclusion and exclusion criteria, 98 patients meeting the diagnostic criteria of both traditional Chinese and Western medicine for CC with the syndrome of Qi-Yin deficiency complicated by blood stasis were randomly assigned to an observation group and a control group. The observation group received YYHP granules, while the control group received lactulose. Both medications were administered twice daily, one sachet each time, half an hour after breakfast and dinner, with a treatment course of 8 weeks. The primary constipation symptom score, Patient Assessment of Constipation Quality of Life (PAC-QOL) score, and TCM syndrome score were assessed before and after treatment and at the 8th week after the end of treatment. The overall clinical effective rate, as well as the efficacy attenuation index and degree, were evaluated. Fecal SCFA levels were measured using gas chromatography-mass spectrometry (GC-MS). Spearman correlation analysis was performed to explore the correlations among CC severity indicators and between these indicators and patient history. ResultsThe overall clinical effective rate in the observation group (95.83%) was higher than that in the control group (78.72%) (P<0.05). After treatment, the total scores for primary constipation symptoms, PAC-QOL, and TCM syndromes decreased in both groups (P<0.05), with more significant reductions in the observation group (P<0.05). The severity of all primary constipation symptoms was alleviated in both groups (P<0.05). In terms of "excessive straining and difficult defecation", "anal heaviness, incomplete evacuation, and bloating sensation", "abdominal distension", and "defecation frequency", the observation group showed better efficacy than the control group (P<0.05). Scores of the four PAC-QOL dimensions and the scores and severity of primary and secondary TCM symptoms were reduced in both groups (P<0.05), with more significant reductions in the observation group (P<0.05). After treatment, acetic acid, propionic acid, butyric acid, and total SCFAs in the observation group increased significantly (P<0.05). The efficacy attenuation index and degree in the observation group were lower than those in the control group (P<0.05). No severe adverse reactions occurred in either group, and there was no statistically significant difference in the incidence of adverse reactions between the two groups. Positive correlations of varying degrees were observed among the total scores of primary constipation symptoms, PAC-QOL, and TCM syndromes, as well as between these scores and the history of stimulant laxative use, disease duration, and age. ConclusionYYHP can effectively alleviate the primary constipation symptoms in CC patients, improve quality of life, and ameliorate TCM syndromes, with good safety. It also has the advantage of a lower rebound degree after drug withdrawal, and its mechanism may be related to increasing fecal SCFA levels. Long-term abuse of stimulant laxatives may aggravate the severity of CC and prolong the disease course.
4.Effects and mechanisms of combined exposure to noise and microwave on hippocampal structure and function in mice
Chunxue LU ; Lei SHI ; Yue WANG ; Yanhui HAO ; Xuelong ZHAO ; Yang LI ; Hongyan ZUO ; Liqian ZHU
Journal of Environmental and Occupational Medicine 2026;43(4):419-426
Background Co-exposure to noise and microwave radiation occurs frequently. The central nervous system has been identified as a sensitive target organ for both noise and microwave exposure individually, and the underlying mechanisms remain poorly understood. The specific biological effects resulting from co-exposure to these two factors have yet to be fully elucidated. Objective To clarify the effects of co-exposure to noise and microwave on neurobehavior and hippocampal tissue structure, and to explore the underlying mechanism through the assessment of serum cytokines. Methods C57BL/6N mice were selected and randomly assigned to a blank control group, a noise group, a microwave group, and a combined noise & microwave exposure group. To establish the exposure models, the noise group was subjected to broadband noise at 100 dB for 2 h, while the microwave group received radiation at a central frequency of 9.375 GHz with an average power density of 12 mW·cm−2 and a specific absorption rate of 2.58 W·kg−1 for 15 min. Open field and tail suspension tests assessed anxiety-like emotional behaviour; novel object recognition and Y-maze tests evaluated cognitive function. Histological changes in hippocampal tissue were examined using haematoxylin and eosin (HE) staining, and Nissl staining under light microscopy. Serum cytokine levels were measured using radioimmunoassay and enzyme-linked immunosorbent assay (ELISA). Results After 3 d of exposure, the noise, microwave, and combined exposure groups showed significant reductions in exploration frequency, duration, and distance within the central zone of the open field test compared to the control group (P < 0.01); the combined exposure group exhibited increased ratios of peripheral-to-central exploration time and distance (P < 0.05). After 7 d of exposure, compared with the control group, the noise group maintained a decrease in central zone exploration time (P < 0.01), while the combined exposure group showed persistent decline across all central zone metrics (P < 0.05) and elevated peripheral-to-central ratios (P < 0.05); compared to the microwave group, the combined exposure group showed significant less time in the central zone (P < 0.05) and higher peripheral-to-central ratios (P < 0.05). Regarding behaviour and cognition, compared with the control group, the combined exposure group showed increased immobility time in the tail suspension test after 3 d of exposure (P < 0.01). At this interval, all exposure groups demonstrated reduced frequency and duration of novel object recognition (P < 0.05), with the combined exposure group showing a marked decrease in novel arm exploration time (P < 0.01). After 7 d of exposure, compared with the control group, the noise group showed reduced novel object recognition frequency (P < 0.05), and both the noise and microwave groups exhibited decreased novel arm exploration time (P < 0.05). Pathological alterations including an increased number of hyperchromatic nuclei and depleted Nissl bodies were observed in the CA3 and DG regions across all exposure groups with the most severe lesions observed in the combined exposure group. Serum levels of central nervous system-specific protein β (S-100β), glial fibrillary acidic protein (GFAP), and corticosterone (CORT) were significantly elevated in all exposure groups compared with the control group (P < 0.05). Aquaporin-4 (AQP4) levels increased in the combined exposure group (P < 0.05), while CXC chemokine ligand 10 (CXCL10) levels rose in both the noise and combined groups compared with the control group (P < 0.05). Specifically, S-100β and CXCL10 levels in the combined exposure group were higher than those in the microwave group (P < 0.05); moreover, levels of S-100β, GFAP, CORT, AQP4, and CXCL10 in the combined exposure group were significantly higher than those in the noise group (P < 0.05). Conclusion Combined exposure to noise and microwave radiation induces pathological changes in the hippocampus of mice, increases levels of serum stress hormones and neuro-specific biomarkers. These impairments are more severe than those observed following single-factor exposure. The underlaying mechanism may be related to systemic stress response, neuronal damage, astrocyte activation, and changes in blood-brain barrier permeability, leading to emotional behavioral abnormalities and cognitive decline.
5.Application of action observation therapy in stroke rehabilitation from 2016 to 2025: a bibliometric analysis
Cheng HUANG ; Yangyi SHEN ; Biying LU ; Tong LIU ; Yue LIU
Chinese Journal of Rehabilitation Theory and Practice 2026;32(4):399-410
ObjectiveTo analyze the application trends and research hotspots of action observation therapy (AOT) in the field of stroke rehabilitation over the past decade. MethodsLiteratures on AOT in stroke rehabilitation published from January, 2016 to December, 2025 were retrieved from the Web of Science Core Collection database. CiteSpace 6.4.R1 was used for visual analysis. ResultsA total of 463 articles were included. The annual publication volume showed a fluctuating upward trend. The country with the highest number of publications was China, the most productive institution was Chang Gung University and Consiglio Nazionale delle Ricerche, and the most prolific author was Avanzini Pietro. Mirror neuron system, motor imagery, upper limb and facilitation were identified as high-frequency keywords and bursting words. ConclusionIn the past decade, the number of publications on AOT in stroke rehabilitation has generally increased. Researches are focusing on the synergy of sensory-closed-loop multimodal technologies, reconstruction of fine upper limb function and neural facilitation mechanisms.
6.Analysis of changes in serum UGRP1 level and influencing factors in pregnant patients with Hashimoto’s thyroiditis
Xingran MA ; Yue WU ; Chenyang LU ; Chunlin ZUO
Acta Universitatis Medicinalis Anhui 2026;61(4):724-728
ObjectiveTo investigate the fluctuations in serum uteroglobin-related protein 1(UGRP1) levels in Hashimoto’s thyroiditis (HT) patients before and after pregnancy, and to analyze the influencing factors. MethodsTen healthy individuals and ten HT patients were enrolled. Thyroid fine needle aspiration cytology combined with immunohistochemistry was used to detect the expression of UGRP1 protein in thyroid cells between the two groups. A total of 30 healthy women were enrolled as the control group, and 149 HT patients were recruited, including 36 non-pregnant HT patients, 77 pregnant HT patients and 36 post-partum HT patients. According to levothyroxine sodium (L-T4) administration status, the pregnant HT group was further subdivided into the non-L-T4 subgroup (n=36) and the L-T4 subgroup (n=41). Kruskal-Wallis H test was used to compare the general clinical data, thyroid-related indicators and serum UGRP1 levels among groups. Spearman correlation analysis and univariate linear regression analysis were performed to explore the influencing factors of serum UGRP1 levels in HT patients. ResultsUGRP1 expression was negative in thyroid cells of all healthy individuals, while 80% of HT patients exhibited positive expression. The serum UGRP1 levels in the control group, non-pregnant HT group, pregnant HT group, and post-partum HT group were 359.52 (297.84, 440.60), 695.77 (518.55, 865.04), 207.96 (173.82, 264.91), and 582.08 (280.83, 735.87) pg/mL, respectively, with statistically significant differences among groups (P<0.001). Correlation analysis showed no significant correlation between serum UGRP1 levels and thyroid-related indicators or gestational age in pregnant HT patients. Univariate linear regression analysis revealed that pregnancy status was negatively correlated with serum UGRP1 levels in HT patients (β= -424.457, P<0.001), while L-T4 administration had no statistically significant effect on serum UGRP1 levels in pregnant HT patients (P=0.890). ConclusionSerum UGRP1 levels are significantly higher in HT patients than in healthy individuals. Pregnancy is an important factor affecting serum UGRP1 levels in HT patients, which can lead to a decrease in UGRP1 levels, while L-T4 administration has no significant effect on serum UGRP1 levels.
7.Treatment of Hyperuricemia and Gouty Arthritis by Buyang Huanwu Tongfeng Decoction via Inhibition of PPAR-γ/NF-κB/AGEs/RAGE Pathway Based on Network Pharmacology
Yue CAO ; Wanmei YAO ; Tao YANG ; Man YANG ; Ruimin JIA ; Rongrong LU ; Xue FENG ; Biwang LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):182-192
ObjectiveThis paper aims to investigate the potential molecular biological mechanism of Buyang Huanwu Tongfeng decoction in treating hyperuricemia and gouty arthritis by network pharmacology and molecular docking technology and preliminarily verify the mechanism through animal experiments. MethodsThe active ingredients and targets in the Buyang Huanwu Tongfeng decoction were obtained by the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and ETCM databases. The DisGeNET and GeneCards databases were utilized to acquire disease targets associated with hyperuricemia and gouty arthritis. These disease targets were then intersected with drug targets to identify key targets. The R language ClusterProfiler package and Python were employed for conducting gene ontology(GO) enrichment analysis and Kyoto encyclopedia of genes and genomes(KEGG) enrichment analysis. The regulatory network diagram of the drug-key target-function-pathway was visualized using Cytoscape 3.9.1 software, and the protein-protein interaction (PPI) network for key targets was depicted. Finally, the hub gene was determined through topological analysis. Auto Dock, PyMOL, and other software were used for molecular docking to explore the possible therapeutic mechanism of Buyang Huanwu Tongfeng decoction for hyperuricemia and gouty arthritis. In animal experiments, a composite rat model of hyperuricemia induced by intraperitoneal injection of oteracil potassium combined with gouty arthritis induced by the modified Coderre method was established. Through hematoxylin-eosin(HE) staining, uric acid test, enzyme linked immunosorbent assay(ELISA), Western blot, and real-time polymerase chain reaction(Real-time PCR), the molecular mechanism and key targets of Buyang Huanwu Tongfeng decoction for treating hyperuricemia and gouty arthritis were observed. ResultsAfter screening and removing duplicate values, 76 active ingredients and 15 key targets were finally obtained. GO enrichment analysis yielded that the treatment of hyperuricemia and gouty arthritis with Buyang Huanwu Tongfeng decoction was significantly associated with acute inflammatory response, astrocyte activation, regulation of interleukin (IL)-8 production, nuclear receptor activity, and binding of growth factor receptor. KEGG pathway enrichment analysis obtained that the key target genes were significantly associated with the IL-17 signaling pathway, advanced glycosylation end/receptor of advanced glycation endproducts(AGE/RAGE) signaling pathway, anti-inflammatory, and other pathways. PPI network indicated that albumin(ALB), peroxisome proliferator-activated receptor-γ (PPAR-γ), IL-6, IL-1β, and C-reactive protein(CRP) were the key protein targets. The molecular docking results showed that ALB had the strongest binding force with beta-carotene (β-carotene). Biochemical results showed that blood uric acid decreased in the Buyang Huanwu Tongfeng decoction groups. HE staining results showed that the low-dose (7.76 g·kg-1·d-1), medium-dose (15.53 g·kg-1·d-1), and high-dose (31.05 g·kg-1·d-1) groups of Buyang Huanwu Tongfeng decoction had different degrees of remission, and the remission of the high-dose group was the most obvious. Fibroblastic tissue hyperplasia in synovial joints accompanied with inflammatory cell infiltration, as well as inflammatory cell infiltration in renal tissue of the high-dose group was significantly reduced, followed by the medium-dose and low-dose groups, and the expression of ALB, PPAR-γ, IL-6, IL-1β, and CRP was down-regulated to different degrees. ConclusionBy regulating the targets such as ALB, PPAR-γ, IL-6, IL-1β, and CRP, inhibiting the PPAR-γ/nuclear transcription factor (NF)-κB pathway, and reducing AGEs/RAGE-mediated inflammation, Buyang Huanwu Tongfeng decoction exerts anti-inflammatory and analgesic effects and activates blood circulation and diuresis in the treatment of hyperuricemia and gouty arthritis.
8.Bioinformatics and Animal Experiments Reveal Mechanism of Shouhui Tongbian Capsules in Treating Constipation
Yong LIANG ; Qimeng ZHANG ; Bin GE ; Yang ZHANG ; Yu SHI ; Yue LU ; Hongxi ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):150-157
ObjectiveTo explore the mechanism of Shouhui Tongbian capsules in treating constipation based on the research foundation of its active components combined with network pharmacology and animal experiments. MethodsThe drug components were imported into SwissTargetPrediction to predict the targets of Shouhui Tongbian capsules, and constipation-related targets were collected from disease databases. A protein-protein interaction (PPI) network was constructed for the common targets shared by Shouhui Tongbian capsules and constipation to screen key targets, which was followed by gene ontology (GO) function and Kyoto encyclopedia of genes and genomes (KEGG) pathway enrichment analyses. A "bioactive component-target-pathway" network was constructed, and the core components of Shouhui Tongbian capsules in treating constipation were screened based on the topological parameters of this network. Molecular docking was employed to predict the binding affinity of core components to key targets. A mouse model of constipation was constructed to screen the key pathways and targets of the drug intervention in constipation. ResultsThe PPI network revealed six key constipation-related targets: protein kinase B (Akt1), B-cell lymphoma-2 (Bcl-2), glycogen synthase kinase-3β (GSK-3β), cyclooxygenase-2 (PTGS2), estrogen receptor 1 (ESR1), and epidermal growth factor receptor (EGFR). The KEGG pathway analysis showed that the phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway was the most enriched. The topological parameter analysis of the "bioactive component-target-pathway" network screened out the top 10 core components: auranetin, isosinensetin, naringin, diosmetin, quercetin, apigenin, luteolin, hesperidin, isorhapontigenin, and chrysophanol. Molecular docking results showed that the 10 core components had strong binding affinity with the 6 key targets. Animal experiments showed that after intervention with different doses of Shouhui Tongbian capsules, the time to the first black stool excretion was reduced and the fecal water content and small intestine charcoal propulsion rate of mice were improved. After treatment with Shouhui Tongbian capsules, the colonic mucosal injury and glandular arrangement were alleviated, and the muscle layer thickness was increased. Western blot results showed that Shouhui Tongbian capsules recovered the expression of apoptosis-related molecules mediated by the PI3K/Akt pathway in the colonic tissue of constipated mice. Terminal-deoxynucleotidyl transferase-mediated nick end labeling (TUNEL) results showed that the cell apoptosis rate of the colon significantly reduced after intervention with Shouhui Tongbian capsules. ConclusionThe results of network pharmacology and animal experiments confirmed that Shouhui Tongbian capsules can treat constipation through multiple targets and pathways. The capsules can effectively intervene in loperamide-induced constipation in mice by regulating the constipation indicators and reducing cell apoptosis in the colon tissue via activating the PI3K/Akt signaling pathway.
9.The mechanism of Prim-O-glucosylcimifugin in improving cholesterol metabolism in osteoarthritis chondrocytes via lncRNA NEAT1/miR-128-3p
Yanming LIN ; Haishui TU ; Shujie LAN ; Chao LI ; Shiyu LU ; Yue CHEN ; Changlong FU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(1):55-67
Objective:
To investigate the mechanism of action of Prim-O-glucosylcimifugin (POG) to improve cholesterol metabolism in osteoarthritic (OA) chondrocytes based on the long noncoding RNA nuclear-enriched transcript 1 (lncRNA NEAT1)/microRNA-128-3p (miR-128-3p) pathway.
Methods:
For in vivo experiments, 60 mice were divided into the normal, sham operation, model, and POG groups using the random number table method, with 15 mice per group. The osteoarthritis mouse model was constructed using the modified Hulth method in the model and POG groups. Mice in the POG group were administered 30 mg/(kg·d)POG by gavage. The other groups were administered an equal amount of normal saline for 8 weeks. The cartilage tissue structure of mice in each group was observed using hematoxylin and eosin staining. Real-time PCR was used to detect changes in the lncRNA NEAT1 and miR-128-3p mRNA expression levels in the cartilage tissues of mice. Western blotting was used to detect the protein expressions of ATP-binding cassette transporter A1 (ABCA1), liver X receptor β (LXRβ), matrix metalloprotein-3 (MMP-3), and B-lymphoblastoma-2-associated X protein (Bax) in articular cartilage of mice. An enzyme-linked immunosorbent assay was used to measure the tumor necrosis factor-α (TNF-α) content in the synovial fluid of mice. A biochemical microplate assay was used to measure the total cholesterol level in the synovial fluid of mice. The in vitro experiments were divided into the negative control, interleukin-1β(IL-1β), IL-1β+ POG, IL-1β+ oe-lncRNA NEAT1, IL-1β+ oe-lncRNA NEAT1 + POG, IL-1β + miR-128-3p inhibition, and IL-1β+ miR-128-3p inhibition+ POG groups. An OA model was established by inducing chondrocytes with IL-1β for 24 h, and 90 mg/L of POG and miR-128-3p inhibitor(50 nmol/L) were administered for 48 h as an intervention. lncRNA NEAT1 expression in chondrocytes was detected using fluorescence in situ hybridization. A dual luciferase assay was used to detect the targeting relationship between lncRNA NEAT1 and miR-128-3p. Lentiviral plasmids overexpressing lncRNA NEAT1 were used to transfect mouse chondrocytes. Real-time PCR was used to detect the effect of lncRNA NEAT1 overexpression on the mRNA level of miR-128-3p in chondrocytes. Western blotting was used to detect ABCA1, LXRβ, MMP-3, and Bax protein expression in chondrocytes after lncRNA NEAT1 overexpression and miR-128-3p inhibition.
Results:
POG significantly reduced OA cartilage tissue damage. Compared with the model group, the lncRNA NEAT1 mRNA level decreased, whereas the miR-128-3p mRNA level increased in the cartilage tissue of the POG group (P<0.05). Compared with the model group, ABCA1 and LXRβ protein expression increased in the POG group, whereas MMP-3 and Bax protein expression decreased (P<0.05). The TNF-α levels decreased in the POG group compared to the model group (P<0.05). Compared with the model group, the total cholesterol level in the synovial fluid of the joint of mice in the POG group decreased (P<0.05). The mean fluorescence intensity of lncRNA NEAT1 in the IL-1β+ POG group decreased compared with the IL-1β group (P<0.05). The relative luciferase activity in the miR-128-3p mimics group bound to the lncRNA NEAT1-WT plasmid decreased compared with the miR-128-3p negative control group (P<0.05). The lncRNA NEAT1 mRNA levels decreased, whereas the miR-128-3p mRNA levels increased in the IL-1β+ oe-lncRNA NEAT1 + POG group compared with the IL-1β+ oe-lncRNA NEAT1 group (P<0.05). Compared with the IL-1β+ POG group, ABCA1 and LXRβ protein expression decreased, whereas MMP-3 and Bax protein expression increased (P<0.05).
Conclusion
POG mediates lncRNA NEAT1/miR-128-3p to improve cholesterol metabolism in OA chondrocytes.
10.Baicalein mitigates ferroptosis of neurons after subarachnoid hemorrhage
Ting ZHU ; Tingting YUE ; Yue CUI ; Yue LU ; Wei LI ; Chunhua HANG
Chinese Journal of Tissue Engineering Research 2025;29(1):52-57
BACKGROUND:Ferroptosis is a mode of programmed cell death distinct from apoptosis,necrosis,and other novel cellular deaths,which occurs mainly due to accumulated lipid peroxidation.Ferroptosis has been shown to be involved in the pathological process following subarachnoid hemorrhage.Baicalein,serving as an adept sequestered of iron,evinces its prowess by quelling lipid peroxidative cascades.Nonetheless,the enigma lingers as to whether baicalein possesses the capacity to ameliorate neuronal ferroptosis,elicited in the wake of early brain injury after subarachnoid hemorrhage. OBJECTIVE:To investigate the effect and mechanism of baicalein on neuronal ferroptosis after subarachnoid hemorrhage. METHODS:Primary neuronal cells were extracted from C57BL/6L fetal mice at 16-17 days of gestation.Hemoglobin was used to stimulate primary neuronal cells to simulate an in vitro subarachnoid hemorrhage model.The viability of primary neuronal cells treated with baicalein at concentrations of 5,15,25,50,and 100 μmol/L for 24 hours was detected by CCK-8 assay to determine the optimal concentration of baicalein.Primary neuronal cells were divided into control group,hemoglobin group,and hemoglobin+baicalein group.The levels of reactive oxygen species and malondialdehyde in cells were detected by kits.The mRNA expressions of ferroptosis-related markers PTGS2,SLC7A11,and glutathione peroxidase 4 were detected by RT-PCR.The primary neuronal cells were further divided into control group,SLC7A11 inhibitor Erastin group,hemoglobin group,hemoglobin+baicalein group,and hemoglobin+baicalein+Erastin group.The expression of the ferroptosis related markers SLC7A11 and glutathione peroxidase 4 was detected by western blot assay. RESULTS AND CONCLUSION:(1)Baicalein(25 μmol/L)was selected as the following experimental concentration.(2)Compared with the hemoglobin group,the level of malondialdehyde and the level of reactive oxygen species were significantly decreased(P<0.05)in the hemoglobin+baicalein group.(3)Compared with the hemoglobin group,the mRNA expression of PTGS2 significantly decreased,and the mRNA expression of SLC7A11 and glutathione peroxidase 4 significantly increased(P<0.000 1)in the hemoglobin+baicalein group.(4)SLC7A11 inhibitor Erastin could reverse the baicalin-improved ferroptosis effect to a certain extent(P<0.05).(5)The results showed that baicalein could alleviate the ferroptosis of neuronal cells after subarachnoid hemorrhage through the SLC7A11/GPX4 pathway.


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