1.Precision therapy targeting CAMK2 to overcome resistance to EGFR inhibitors in FAT1 -mutated oral squamous cell carcinoma.
Yumeng LIN ; Yibo HUANG ; Bowen YANG ; You ZHANG ; Ning JI ; Jing LI ; Yu ZHOU ; Ying-Qiang SHEN ; Qianming CHEN
Chinese Medical Journal 2025;138(15):1853-1865
BACKGROUND:
Oral squamous cell carcinoma (OSCC) is a prevalent type of cancer with a high mortality rate in its late stages. One of the major challenges in OSCC treatment is the resistance to epidermal growth factor receptor (EGFR) inhibitors. Therefore, it is imperative to elucidate the mechanism underlying drug resistance and develop appropriate precision therapy strategies to enhance clinical efficacy.
METHODS:
To evaluate the efficacy of the combination of the Ca 2+ /calmodulin-dependent protein kinase II (CAMK2) inhibitor KN93 and EGFR inhibitors, we performed in vitro and in vivo experiments using two FAT atypical cadherin 1 ( FAT1 )-deficient (SCC9 and SCC25) and two FAT1 wild-type (SCC47 and HN12) OSCC cell lines. We assessed the effects of EGFR inhibitors (afatinib or cetuximab), KN93, or their combination on the malignant phenotype of OSCC in vivo and in vitro . The alterations in protein expression levels of members of the EGFR signaling pathway and SRY-box transcription factor 2 (SOX2) were analyzed. Changes in the yes-associated protein 1 (YAP1) protein were characterized. Moreover, we analyzed mitochondrial dysfunction. Besides, the effects of combination therapy on mitochondrial dynamics were also evaluated.
RESULTS:
OSCC with FAT1 mutations exhibited resistance to EGFR inhibitors treatment. The combination of KN93 and EGFR inhibitors significantly inhibited the proliferation, survival, and migration of FAT1 -mutated OSCC cells and suppressed tumor growth in vivo . Mechanistically, combination therapy enhanced the therapeutic sensitivity of FAT1 -mutated OSCC cells to EGFR inhibitors by modulating the EGFR pathway and downregulated tumor stemness-related proteins. Furthermore, combination therapy induced reactive oxygen species (ROS)-mediated mitochondrial dysfunction and disrupted mitochondrial dynamics, ultimately resulting in tumor suppression.
CONCLUSION
Combination therapy with EGFR inhibitors and KN93 could be a novel precision therapeutic strategy and a potential clinical solution for EGFR-resistant OSCC patients with FAT1 mutations.
Humans
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ErbB Receptors/metabolism*
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Mouth Neoplasms/metabolism*
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Cell Line, Tumor
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Animals
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Drug Resistance, Neoplasm/genetics*
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Cadherins/metabolism*
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Carcinoma, Squamous Cell/metabolism*
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Mice
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Mutation/genetics*
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Mice, Nude
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Protein Kinase Inhibitors/therapeutic use*
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Cetuximab/pharmacology*
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Afatinib/therapeutic use*
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Cell Proliferation/drug effects*
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Signal Transduction/drug effects*
2.Analysis of changes in annexin A2 and vascular endothelial cadherin in patients with cerebral infarction treated with emergency thrombolysis and the relationship with short-term progression
Zuke XU ; Ying LI ; Yuanyuan LI ; Yibo TIAN ; Long LI
Chinese Journal of Postgraduates of Medicine 2025;48(11):993-1000
Objective:To Explore the changes of annexin A2 and vascular endothelial cadherin (VE-Cad) in patients with cerebral infarction (CI) undergoing emergency thrombolysis, and analyze their relationship with progression within 10 d.Methods:Using a prospective research method, 78 patients with CI were selected from October 2019 to June 2022 in Xi'an International Medical Center Hospital, and all patients were treated with emergency thrombolysis. The serum levels of annexin A2 and VE-Cad before and after thrombolysis were measured by enzyme-linked immunosorbent assay, and the National Institute stroke scale (NIHSS) was used to assess patients' neurologic impairment. The baseline data, imaging findings at admission and routine laboratory examination indexes were recorded. The progression within 10 d after thrombolysis was recorded. Pearson correlation analysis was used to analyze the correlation between annexin A2, VE-Cad and NIHSS score. Multivariate Logistic regression was used to analyze the independent risk factors of progression within 10 d after thrombolysis in patients with CI. The value of annexin A2 and VE-Cad in predicting the progression within 10 d after thrombolysis in patients with CI was evaluated by the receiver operating characteristics (ROC) curve. A restricted cubic spline model was drawn to evaluate the dose-response relationship between annexin A2, VE-Cad and the progression within 10 d after thrombolysis in patients with CI.Results:Compared with before thrombolysis, the annexin A2 after thrombolysis was significantly higher: (24.50 ± 3.27) μg/L vs. (20.86 ± 3.84) μg/L, the VE-Cad and NIHSS score were significantly lower: (4.72 ± 1.05) mg/L vs. (6.81 ± 1.31) mg/L and (8.64 ± 2.35) scores vs. (13.01 ± 2.86) scores, and there were statistical differences ( P<0.01). Before and after thrombolysis, Pearson correlation analysis result showed there was a negative correlation between annexin A2 and NIHSS score ( r =-0.796 and - 0.568, P<0.01), and a positive correlation between VE-Cad and NIHSS score ( r = 0.820 and 0.502, P<0.01). Among 78 patients with CI treated with emergency thrombolysis, 7 cases (8.97%) experienced progression within 10 d. There were statistical differences in hypertension, diabetes, hyperlipidemia, onset to thrombolysis time, infarct site, systolic blood pressure, triacylglycerol, high-density lipoprotein cholesterol, and the NIHSS score, annexin A2, VE-Cad before and after thrombolysis between patients with progression within 10 d after thrombolysis and patients without progression within 10 d after thrombolysis ( P<0.05 or <0.01); there were no statistical differences in gender composition, age, body mass index, coronary heart disease, atrial fibrillation, smoking, alcohol consumption, family history of stroke, carotid plaques, blood glucose, diastolic blood pressure, white blood cell count, platelet count, total cholesterol low-density lipoprotein cholesterol between the two groups ( P>0.05). After adjusting for hypertension, diabetes and hyperlipidemia, multivariate Logistic regression analysis result showed that the infarction site, onset to thrombolysis time, VE-Cad after thrombolysis and annexin A2 after thrombolysis were still independent factors of progression within 10 d after thrombolysis in patients with CI ( OR = 2.570, 2.496, 3.147 and 0.352; 95% CI 1.285 to 5.139, 1.303 to 4.781, 1.629 to 6.080 and 0.158 to 0.782; P<0.05 or <0.01). ROC curve analysis results showed that the area under the curve of annexin A2 combined with VE-Cad after thrombolysis to predict the progression within 10 d after thrombolysis in patients with CI was significantly larger than that of annexin A2 and VE-Cad after thrombolysis alone (0.898 vs. 0.822 and 0.799, χ2 = 2.17 and 1.98, P = 0.039 and 0.048). The optimal cutoff values of annexin A2 and VE-Cad after thrombolysis were <23.27 μg/L and >4.92 mg/L, with a sensitivity of 88.24%, and a specificity of 77.05%. The restricted cubic spline analysis result showed that the continuous changes in annexin A2 after thrombolysis were roughly negatively correlated with the progression within 10 d after thrombolysis in patients with CI ( OR = 0.720, 95% CI 0.561 to 0.930, P = 0.010), the continuous changes in VE-Cad after thrombolysis were roughly positively correlated with the progression within 10 d after thrombolysis in patients with CI ( OR = 1.450, 95% CI 1.126 to 1.188, P = 0.004). When annexin A2<23.80 ng/L and VE-Cad>5.25 mg/L after thrombolysis, the risk of progression within 10 d after thrombolysis in patients with CI significantly increased. Conclusions:The expression of annexin A2 increases and VE-Cad decreases after emergency thrombolysis in patients with CI, and the expression levels of both are closely related to the degree of neurologic impairment, and the risk of progression within 10 d after thrombolysis could be determined clinically by detecting their changes.
3.Study of the efficacy of ozone bath after debridement of necrotizing fasciitis
Rong LIU ; Tianbao XIAO ; Tiantian BAO ; Yibo CAO ; Tao YANG ; Ying ZHAO ; Jiang CHEN
Chongqing Medicine 2025;54(7):1586-1590
Objective To explore the efficacy of ozone gas bath on necrotizing fasciitis after debride-ment.Methods Fifty patients with necrotizing fasciitis who underwent debridement in the First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine from January 2020 to July 2024 were selected and divided into control group(25 cases)and observation group(25 cases)according to random number table method.The control group was given routine dressing change(normal saline,povidone iodine,hydrogen per-oxide,metronidazole sodium chloride injection),and the observation group was treated with ozone gas bath.The clinical efficacy,pain scores,laboratory indicators,postoperative complications,and total hospital days of the two groups were compared before and after treatment.Results Compared with the control group,the ob-servation group had a higher total effective rate(92.0%vs.68.0%),lower numerical rating scale for pain(NRS)scores at 1 week postoperatively,2 weeks postoperatively,and before discharge,as well as lower levels of WBC,C reactive protein(CRP),and procalcitonin(PCT),and a lower total incidence of complications(52.0%vs.80.0%).The hospital stay was shorter[(22.40±2.06)d vs.(29.28±2.28)d)],with statistical-ly significant differences(P<0.05).Conclusion Ozone gas bath can reduce postoperative pain and promote recovery in necrotizing fasciitis after debridement.
4.Analysis of changes in annexin A2 and vascular endothelial cadherin in patients with cerebral infarction treated with emergency thrombolysis and the relationship with short-term progression
Zuke XU ; Ying LI ; Yuanyuan LI ; Yibo TIAN ; Long LI
Chinese Journal of Postgraduates of Medicine 2025;48(11):993-1000
Objective:To Explore the changes of annexin A2 and vascular endothelial cadherin (VE-Cad) in patients with cerebral infarction (CI) undergoing emergency thrombolysis, and analyze their relationship with progression within 10 d.Methods:Using a prospective research method, 78 patients with CI were selected from October 2019 to June 2022 in Xi'an International Medical Center Hospital, and all patients were treated with emergency thrombolysis. The serum levels of annexin A2 and VE-Cad before and after thrombolysis were measured by enzyme-linked immunosorbent assay, and the National Institute stroke scale (NIHSS) was used to assess patients' neurologic impairment. The baseline data, imaging findings at admission and routine laboratory examination indexes were recorded. The progression within 10 d after thrombolysis was recorded. Pearson correlation analysis was used to analyze the correlation between annexin A2, VE-Cad and NIHSS score. Multivariate Logistic regression was used to analyze the independent risk factors of progression within 10 d after thrombolysis in patients with CI. The value of annexin A2 and VE-Cad in predicting the progression within 10 d after thrombolysis in patients with CI was evaluated by the receiver operating characteristics (ROC) curve. A restricted cubic spline model was drawn to evaluate the dose-response relationship between annexin A2, VE-Cad and the progression within 10 d after thrombolysis in patients with CI.Results:Compared with before thrombolysis, the annexin A2 after thrombolysis was significantly higher: (24.50 ± 3.27) μg/L vs. (20.86 ± 3.84) μg/L, the VE-Cad and NIHSS score were significantly lower: (4.72 ± 1.05) mg/L vs. (6.81 ± 1.31) mg/L and (8.64 ± 2.35) scores vs. (13.01 ± 2.86) scores, and there were statistical differences ( P<0.01). Before and after thrombolysis, Pearson correlation analysis result showed there was a negative correlation between annexin A2 and NIHSS score ( r =-0.796 and - 0.568, P<0.01), and a positive correlation between VE-Cad and NIHSS score ( r = 0.820 and 0.502, P<0.01). Among 78 patients with CI treated with emergency thrombolysis, 7 cases (8.97%) experienced progression within 10 d. There were statistical differences in hypertension, diabetes, hyperlipidemia, onset to thrombolysis time, infarct site, systolic blood pressure, triacylglycerol, high-density lipoprotein cholesterol, and the NIHSS score, annexin A2, VE-Cad before and after thrombolysis between patients with progression within 10 d after thrombolysis and patients without progression within 10 d after thrombolysis ( P<0.05 or <0.01); there were no statistical differences in gender composition, age, body mass index, coronary heart disease, atrial fibrillation, smoking, alcohol consumption, family history of stroke, carotid plaques, blood glucose, diastolic blood pressure, white blood cell count, platelet count, total cholesterol low-density lipoprotein cholesterol between the two groups ( P>0.05). After adjusting for hypertension, diabetes and hyperlipidemia, multivariate Logistic regression analysis result showed that the infarction site, onset to thrombolysis time, VE-Cad after thrombolysis and annexin A2 after thrombolysis were still independent factors of progression within 10 d after thrombolysis in patients with CI ( OR = 2.570, 2.496, 3.147 and 0.352; 95% CI 1.285 to 5.139, 1.303 to 4.781, 1.629 to 6.080 and 0.158 to 0.782; P<0.05 or <0.01). ROC curve analysis results showed that the area under the curve of annexin A2 combined with VE-Cad after thrombolysis to predict the progression within 10 d after thrombolysis in patients with CI was significantly larger than that of annexin A2 and VE-Cad after thrombolysis alone (0.898 vs. 0.822 and 0.799, χ2 = 2.17 and 1.98, P = 0.039 and 0.048). The optimal cutoff values of annexin A2 and VE-Cad after thrombolysis were <23.27 μg/L and >4.92 mg/L, with a sensitivity of 88.24%, and a specificity of 77.05%. The restricted cubic spline analysis result showed that the continuous changes in annexin A2 after thrombolysis were roughly negatively correlated with the progression within 10 d after thrombolysis in patients with CI ( OR = 0.720, 95% CI 0.561 to 0.930, P = 0.010), the continuous changes in VE-Cad after thrombolysis were roughly positively correlated with the progression within 10 d after thrombolysis in patients with CI ( OR = 1.450, 95% CI 1.126 to 1.188, P = 0.004). When annexin A2<23.80 ng/L and VE-Cad>5.25 mg/L after thrombolysis, the risk of progression within 10 d after thrombolysis in patients with CI significantly increased. Conclusions:The expression of annexin A2 increases and VE-Cad decreases after emergency thrombolysis in patients with CI, and the expression levels of both are closely related to the degree of neurologic impairment, and the risk of progression within 10 d after thrombolysis could be determined clinically by detecting their changes.
5.A Critical Discussion on the Connotation of Children’s Subjectivity in Health Management
Ying DONG ; Hong XU ; Yin WANG ; Xin LIANG ; Suya YANG ; Yumei LIU ; Lili FU ; Yibo WU
Chinese Medical Ethics 2024;35(3):302-309
The discussion on the connotation of children’s subjectivity is not only a response to the lack of children’s subjectivity at the current stage of health management, but also a reference for children’s medical science popularization. Based on the perspective of social critical theory, this study used empirical research methods to review the "Dream Medical College" project of Children’s Hospital of Fudan University. The current situation and influencing factors of health management experience of 1 520 children participating in the "Dream Medical College" project were analyzed. The study showed that 96.35% of 1 316 subjects had diagnosis and treatment experience in specialized hospitals, and the overall negative emotional performance was at a low level (0~12 points). There was significant correlation between diagnosis and treatment, invasive experience and children’s emotional performance (P<0.05). The study revealed that the diagnosis and treatment field is the main practice place of children’s health management, while the subjective of children with different diagnosis and experience perform significantly different. Children over 4 years old have better language anxiety than physical anxiety when receiving diagnosis and treatment. Although medical science popularization is an important practical form of children’s health management, it lacks the science popularization content of invasive diagnosis and treatment and emotional management, and creative popular science form is more suitable for children with long-term and frequent diagnosis and treatment experience.
6.Mechanism of Polyphyllin Ⅱ in Induction of Ferroptosis in Hepatocellular Carcinoma HepG2 Cells
Huizhong ZHANG ; Jian NI ; Hulinyue PENG ; Yibo ZHANG ; Xiaohan XU ; Shiman LI ; Yidan RUAN ; Yongqiang ZHANG ; Pingzhi ZHANG ; Aina YAO ; Ying WANG ; Xiaoxu DONG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(17):105-112
ObjectiveTo investigate the induction of ferroptosis by polyphyllin Ⅱ (PPⅡ) in hepatocellular carcinoma HepG2 cells and its underlying mechanism. MethodThe effect of PPⅡ (0, 1.5, 3.0, 4.5, 6.0, 9.0, 18.0 mg·L-1) on the in vitro proliferation of HepG2 cells was assessed using the methyl thiazolyl tetrazolium (MTT) assay. Colony formation ability of HepG2 cells was evaluated through a colony formation assay. Cell migration ability was assessed via a scratch assay. Lactate dehydrogenase (LDH) content in HepG2 cells was measured using a kit. Reactive oxygen species (ROS) levels in HepG2 cells were observed using a fluorescence inverted microscope. Malondialdehyde (MDA), glutathione (GSH), and free Fe2+ content in HepG2 cells were detected using respective kits. The mitochondrial ultrastructure in HepG2 cells was observed by transmission electron microscopy. The expression of ferroptosis-related proteins p53, solute carrier family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GPX4), long-chain acyl-CoA synthetase 4 (ACSL4), and transferrin receptor 1 (TFR1) in HepG2 cells was detected using Western blot. ResultCompared with the control group, the PPⅡ treatment groups showed significantly decreased survival rate of HepG2 cells in a dose-dependent manner (P<0.01), significantly reduced number of cell colonies (P<0.01), significantly shortened scratch healing distance, inverse correlation of the migration distance with drug concentration (P<0.01), significantly increased LDH leakage in cells (P<0.01), significantly enhanced relative fluorescence intensity of intracellular ROS, and significantly increased accumulation of lipid peroxide MDA (P<0.01), decreased intracellular GSH content with increasing drug concentration (P<0.01), and significantly enhanced fluorescence intensity of FeRhoNox-1 in cells (P<0.01). Moreover, cells exhibited vacuolation, and mitochondria showed significant shrinkage with reduced or even disappeared cristae. Compared with the results in the control group, the expression of p53, ACSL4, and TFR1 proteins significantly increased, while the expression of SLC7A11 and GPX4 proteins significantly decreased in the PPⅡ treatment groups (P<0.05). ConclusionIn summary, PPⅡ induces ferroptosis in HepG2 cells by regulating the p53/SLC7A11/GPX4 signaling axis, promoting ACSL4 expression and Fe3+ uptake, leading to an imbalance in the antioxidant system.
7.Efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation in the treatment of secondary acute myeloid leukemia
Xiaolin YUAN ; Yibo WU ; Xiaolu SONG ; Yi CHEN ; Ying LU ; Xiaoyu LAI ; Jimin SHI ; Lizhen LIU ; Yanmin ZHAO ; Jian YU ; Luxin YANG ; Jianping LAN ; Zhen CAI ; He HUANG ; Yi LUO
Chinese Journal of Hematology 2024;45(1):41-47
Objective:To evaluate the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with secondary acute myeloid leukemia (sAML) .Methods:In this multicenter, retrospective clinical study, adult patients aged ≥18 years who underwent allo-HSCT for sAML at four centers of the Zhejiang Hematopoietic Stem Cell Transplantation Collaborative Group from January 2014 to November 2022 were included, and the efficacy and prognostic factors of allo-HSCT were analyzed.Results:A total of 95 patients were enrolled; 66 (69.5%) had myelodysplastic syndrome-acute myeloid leukemia (MDS-AML) , 4 (4.2%) had MDS/MPN-AML, and 25 (26.3%) had therapy-related AML (tAML) . The 3-year CIR, LFS, and overall survival (OS) rates were 18.6% (95% CI 10.2%-27.0%) , 70.6% (95% CI 60.8%-80.4%) , and 73.3% (95% CI 63.9%-82.7%) , respectively. The 3-year CIRs of the M-AML group (including MDS-AML and MDS/MPN-AML) and the tAML group were 20.0% and 16.4%, respectively ( P=0.430) . The 3-year LFSs were 68.3% and 75.4%, respectively ( P=0.176) . The 3-year OS rates were 69.7% and 75.4%, respectively ( P=0.233) . The 3-year CIRs of the groups with and without TP53 mutations were 60.0% and 13.7%, respectively ( P=0.003) ; the 3-year LFSs were 20.0% and 76.5%, respectively ( P=0.002) ; and the 3-year OS rates were 40.0% and 77.6%, respectively ( P=0.002) . According to European LeukmiaNet 2022 (ELN2022) risk stratification, the 3-year CIRs of patients in the low-, intermediate-, and high-risk groups were 8.3%, 17.8%, and 22.6%, respectively ( P=0.639) . The three-year LFSs were 91.7%, 69.5%, and 65.6%, respectively ( P=0.268) . The 3-year OS rates were 91.7%, 71.4%, and 70.1%, respectively ( P=0.314) . Multivariate analysis revealed that advanced disease at allo-HSCT and TP53 mutations were independent risk factors for CIR, LFS, and OS. Conclusion:There was no significant difference in the prognosis of patients who underwent allo-HSCT among the MDS-AML, MDS/MPN-AML, and tAML groups. Advanced disease at transplantation and TP53 mutations were poor prognostic factors. ELN2022 risk stratification had limited value for predicting the prognosis of patients with sAML following allo-HSCT.
8.Effect and Mechanism of Cuscutae Semen Total Flavonoids Combined with Tripterygium wilfordii Polyglycoside Tablets on Ovarian Germline Stem Cells of Physiological Mice by Notch Signaling Pathway
Yibo YANG ; Ying XU ; Lu WANG ; Zhao ZOU ; Panyu XU ; Hanqian DU ; Jiashan LI ; Na LIN
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(5):9-15
ObjectiveTo observe the effect of Cuscutae Semen total flavonoids combined with Tripterygium wilfordii polyglycoside tablets (TWPT) on ovarian germline stem cells of female physiological mice through neurogenic locus notch homolog (Notch) signaling pathway. MethodSixty female Kunming mice (5 weeks old) were randomly divided into normal group, Tripterygium wilfordii polyglycoside tablets low-, high-dose groups (13.65 mg·kg-1·d-1 and 27.3 mg·kg-1·d-1, 1 and 2 times clinical equivalent dose), Cuscutae Semen total flavonoids low- and high-dose groups (150 mg·kg-1·d-1 and 300 mg·kg-1·d-1), and combination group (13.65 mg·kg-1·d-1 TWPT and 150 mg·kg-1·d-1 Cuscutae Semen total flavonoids), with 10 in each group. After 3 weeks of continuous administration, the uterus/brain and ovarian/brain indexes were calculated, and the pathological changes of ovarian tissue were observed under light microscope. The content of estradiol in serum was determined by enzyme linked immunosorbent assay (ELISA). Immunofluorescence assay was performed to observe the expressions of germline stem cell markers in ovarian epithelium, including mouse vasa homologue (Mvh), octamer-binding transcription factor 4 (Oct4), tyrosine-protein kinase receptor (c-kit), Nanog, Notch signaling pathway molecules, neurogenic locus notch homolog protein 1 (Notch1), hes family BHLH transcription factor 1(Hes1), and jagged canonical Notch ligand 1 (JAG1). ResultCompared with the normal group, low and high doses of TWPT had no significant effect on the uterus/brain and ovary/brain indexes and the uterus and ovary morphologies of mice, while only the number of atretic follicles was increased (P<0.01). The expressions of ovarian germline stem cell markers and Notch signaling pathway molecules had a decreasing trend in TWPT low-dose group, while the expressions of Mvh, c-kit, and Nanog were down-regulated (P<0.05, P<0.01) and the expressions of Notch1 and Hes1 were also reduced (P<0.01) in TWPT high-dose group. However, the above indexes were increased in Cuscutae Semen total flavonoids low-dose group (P<0.05, P<0.01). Compared with the low does of TWPT group, the combination group had a decrease in the increased number of atretic follicles (P<0.01), an improvement in the down-regulated expressions of Mvh and Nanog (P<0.01), and an increase in the expressions of Notch1 and Hes1 (P<0.05, P<0.01). ConclusionOvarian germline stem cells are the source target of the reproductive toxicity of TWPT. Cuscutae Semen total flavonoids participate in the regulation of the germline stem cell pathways to alleviate the reproductive toxicity caused by TWPT, and its mechanism of action may be related to the Notch signaling pathway.
9.Analysis of Pharmacodynamic Material Basis of Qingyan Formula Based on UPLC-Q-Orbitrap-MS and Molecular Docking
Zhao ZOU ; Jiashan LI ; Ying XU ; Yibo YANG ; Panyu XU ; Hanqian DU ; Weifeng ZHU ; Na LIN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(22):159-166
ObjectiveTo study the constituents migrating to blood of Qingyan formula by serum pharmacochemistry, and investigate the binding energy between these constituents and estrogen receptor (ER), so as to confirm the pharmacodynamic material basis of Qingyan formula in rats. MethodUltra-high performance liquid chromatography-quadrupole electrostatic field-orbital trap high resolution mass spectrometry (UPLC-Q-Orbitrap-MS) was used to determine the constituents migrating to blood of Qingyan formula in rats by comparing the fingerprint differences of 70% ethanol extract of Qingyan formula, 70% ethanol extract of each single drug in this formula, blank serum and serum after administration of 70% ethanol extract of Qingyan formula, according to the retention time, relative molecular weight and the primary and secondary ion fragments provided by MS. Mobile phase was 0.1% formic acid aqueous solution (A)-acetonitrile(B) for gradient elution (0-5 min, 2%-20%B; 5-10 min; 20%-50%B; 10-15 min, 50%-80%B; 15-25 min, 80%-95%B; 25-26 min, 95%-2%B; 26-30 min, 2%B), the flow rate was 0.3 mL·min-1 and the injection volume was 5 μL, electrospray ionization was used with detection range of m/z 150-2 000, positive and negative ion scanning modes. Molecular docking technology was used to characterize the binding energy of constituents migrating to blood with ERα and ERβ, and to confirm the material basis of this formula. ResultAfter oral administration of Qingyan formula, 30 components were detected in serum, of which 9 were prototype components and 21 were metabolites. Nine prototype components were identified as monotropein, asperuloside, verbascoside, β-ecdysone, allantoin, deacetyl asperuloside acid, echinacoside, betaine and caffeic acid, 21 metabolites mainly included organic acids, amino acids, cholines and so on. The binding energies of the above 9 prototype components with ERα were -6.7, -8.9, -6.0, -5.7, -5.3, -4.9, -7.3, -3.3, -6.3 kcal·mol-1 (1 kcal≈4 184 J), and the binding energies of them with ERβ were -6.6, -7.2, -7.7, 8.0, -7.4, -5.5, -6.9, -3.6, -6.4 kcal·mol-1, respectively. ConclusionThese nine prototype components into blood are the active ingredients of Qingyan formula that play estrogen-like role in the body, which can provide experimental basis for the formulation of quality standards and subsequent research and development of Qingyan formula.
10.A Critical Discussion on the Connotation of Children’s Subjectivity in Health Management
Ying DONG ; Hong XU ; Yin WANG ; Xin LIANG ; Suya YANG ; Yumei LIU ; Lili FU ; Yibo WU
Chinese Medical Ethics 2022;35(3):302-309
The discussion on the connotation of children’s subjectivity is not only a response to the lack of children’s subjectivity at the current stage of health management, but also a reference for children’s medical science popularization. Based on the perspective of social critical theory, this study used empirical research methods to review the "Dream Medical College" project of Children’s Hospital of Fudan University. The current situation and influencing factors of health management experience of 1 520 children participating in the "Dream Medical College" project were analyzed. The study showed that 96.35% of 1 316 subjects had diagnosis and treatment experience in specialized hospitals, and the overall negative emotional performance was at a low level (0~12 points). There was significant correlation between diagnosis and treatment, invasive experience and children’s emotional performance (P<0.05). The study revealed that the diagnosis and treatment field is the main practice place of children’s health management, while the subjective of children with different diagnosis and experience perform significantly different. Children over 4 years old have better language anxiety than physical anxiety when receiving diagnosis and treatment. Although medical science popularization is an important practical form of children’s health management, it lacks the science popularization content of invasive diagnosis and treatment and emotional management, and creative popular science form is more suitable for children with long-term and frequent diagnosis and treatment experience.

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