1.PENG Peichu's Experience in Staged Differentiation and Treatment of Prostate Cancer
Xinyu XU ; Yu PENG ; Wenjing ZHU ; Jing ZHAI ; Dongya SHENG ; Mingyang WANG ; Yiqun SHAO ; Boyang LI ; Qi ZHONG
Journal of Traditional Chinese Medicine 2024;65(7):678-683
This paper summarized Professor PENG Peichu's experience in the differentiation and treatment of prostate cancer in three phases and four stages. It is considered that prostatic cancer is categorized into root deficiency and branch excess, with depletion of healthy qi as the root, and the accumulation of cancer toxin as the minifestation. Clinical diagnosis and treatment of prostatic cancer can be divided into three phases and four stages according to the exuberance and decline of pathogenic and healthy qi and the changes of deficiency and excess of yin and yang. In the initial accumulation phase of cancer toxin (yang excess stage), the key pathogenesis is the accumulation of dampness, heat and static blood, and internal generation of cancer toxin, and the treatment should be resolving toxins, fighting cancer and dispelling yang excess. In the phase of healthy qi deficiency and toxin accumulation (yin deficiency stage), with the lung and kidney yin deficiency, dampness, heat and static toxin accumulation as the key pathogenesis, the treatment should be centered on mutual generation between metal and water to nourish kidney yin, supplemented with the method of clearing heat and draining dampness, activating blood and resolving toxins, for which self-made Nanbei Formula(南北方)is usually used. In the phase of yang deficiency and cold stagnation (yang deficiency stage and yin excess stage), with the spleen and kidney yang deficiency, cold dampness stagnation, static heat and toxin accumulation as the key pathogenesis, the treatment should be warming and tonifying spleen and kidney to dissipate cold accumulation; for deficiency of both yin and yang, and excess pathogen obstruction, modified Yanghe Decoction(阳和汤) is recommended, while for yang deficiency, cold congealing and blood stasis, self-made Wenshen Sanjie Formula(温肾散结方) can be used, and for cold dampness binding with cancer toxin, and cold complex with heat, self-made Quanan Formula (泉安方) is advised.
2.Study on the mechanism of Yifei xuanfei jiangzhuo formula against vascular dementia
Guifeng ZHUO ; Wei CHEN ; Jinzhi ZHANG ; Deqing HUANG ; Bingmao YUAN ; Shanshan PU ; Xiaomin ZHU ; Naibin LIAO ; Mingyang SU ; Xiangyi CHEN ; Yulan FU ; Lin WU
China Pharmacy 2024;35(18):2207-2212
OBJECTIVE To investigate the mechanism of Yifei xuanfei jiangzhuo formula (YFXF) against vascular dementia (VD). METHODS The differentially expressed genes of YFXF (YDEGs) were obtained by network pharmacology. High-risk genes were screened from YDEGs by using the nomogram model. The optimal machine learning models in generalized linear, support vector machine, extreme gradient boosting and random forest models were screened based on high-risk genes. VD model rats were established by bilateral common carotid artery occlusion, and were randomly divided into model group and YFXF group (12.18 g/kg, by the total amount of crude drugs), and sham operation group was established additionally, with 6 rats in each group. The effects of YFXF on behavior (using escape latency and times of crossing platform as indexes), histopathologic changes of cerebral cortex, and the expression of proteins related to the secreted phosphoprotein 1 (SPP1)/phosphoinositide 3-kinase (PI3K)/protein kinase B (aka Akt) signaling pathway and the mRNA expression of SPP1 in cerebral cortex of VD rats were evaluated. RESULTS A total of 6 YDEGs were obtained, among which SPP1, CCL2, HMOX1 and HSPB1 may be high-risk genes of VD. The generalized linear model based on high-risk genes had the highest prediction accuracy (area under the curve of 0.954). Compared with the model group, YFXF could significantly shorten the escape latency of VD rats, significantly increase the times of crossing platform (P<0.05); improve the pathological damage of cerebral cortex, such as neuronal shrinkage and neuronal necrosis; significantly reduce the expressions of SPP1 protein and mRNA (P<0.05), while significantly increase the phosphorylation levels of PI3K and Akt (P<0.05). CONCLUSIONS VD high-risk genes SPP1, CCL2, HMOX1 and HSPB1 may be the important targets of YFXF. YFXF may play an anti-VD role by down-regulating the protein and mRNA expressions of SPP1 and activating PI3K/Akt signaling pathway.
3.Inhibiting NBR1 expression using the AAV6-CRISPR-Cas9 system affects tumor immune regulation in lung cancer mice
Bokang Wang ; Mingyang Zhu ; Xiusen Zhang ; Jiangtao Sun
Acta Universitatis Medicinalis Anhui 2024;59(12):2103-2111
Objective:
To establish aNBR1-knockout lung cancer mouse model through CRISPR-Cas9 technology by using adeno-associated virus(AAV) as a vector to specifically inhibitNBR1expression and to investigate the impact ofNBR1knockout on tumor growth and immune cell infiltration and regulation.
Methods:
sgRNAs targeting mouseNBR1(Gene ID: 17966) was designed using the online tool CRISPOR(http://crispor.tefor.net/crispor.py). AAV6 was utilized as the vector for sgRNA delivery, and the efficiency of gene knockout was confirmed using PCR and DNA sequencing methods. To determine the best AAV infection approach in mice, 6 C57BL/6J mice were randomly divided into intranasal and endotracheal groups. After 28 days, lung tissue sections were assessed for enhanced green fluorescent protein expression to identify the more efficient infection method for subsequent experiments. Lung tumor growth, as well as immune cell infiltration and activation status in tumor tissues, were detected using methods including HE staining, immunohistochemistry, immunofluorescence, and flow cytometry.
Results:
DNA sequencing and immunofluorescence results indicated successful construction of the AAV6-U6-sgNBR1-CAG-Cre-GFP vector with stable knockout efficiency. Fluorescence microscopy showed higher efficiency of lung infection in mice through intratracheal administration(P<0.05). HE staining revealed reduced tumor area in mouse lungs after targetedNBR1knockout compared to the control group(P<0.01). Immunofluorescence and flow cytometry results demonstrated enhanced functional activity of CD8+T lymphocytes in lung cancer tissues of mice with targetedNBR1knockout, characterized by increased effector T lymphocytes and decreased exhausted T lymphocytes(P<0.01).
Conclusion
Using CRISPR/Cas9 technology, we construct a lung cancer mouse model with targetedNBR1knockout. We verify that targeted inhibition of NBR1 expression significantly enhances the functional activity of CD8+T lymphocytes in lung tissues, resulting in suppressed tumor growth, reduced tumor burden, and extended survival in lung cancer mice. This study lays an experimental foundation for investigations into the mechanisms and functions ofNBR1and other genes in lung adenocarcinoma cells.
4.Assessment of baseline CCL19+dendritic cell infiltration for predicting responses to immunotherapy in lung adenocarcinoma patients
Mingyang ZHU ; Bokang WANG ; Xiusen ZHANG ; Kexu ZHOU ; Zeyu MIAO ; Jiangtao SUN
Journal of Southern Medical University 2024;44(8):1529-1536
Objective To explore the correlation of baseline CCL19+dendritic cell(CCL19+DC)infiltration in lung adenocarcinoma microenvironment with immunotherapy efficacy and CD8+T cell infiltration.Methods We retrospectively analyzed the data of patients with lung adenocarcinoma hospitalized at First Affiliated Hospital of Henan University of Science and Technology from January,2020 to December,2023,and collected tissue samples from 96 patients undergoing immunotherapy for assessing CCL19+DC and CD8+T cell infiltration using immunofluorescence assay.We evaluated the predictive value of baseline CCL19+DCs for patient responses to immunotherapy using receiver-operating characteristics(ROC)curves and analyzed the correlations of baseline CCL19+DC expression with immunotherapy efficacy and CD8+T cell and cytotoxic T lymphocyte(CTL)infiltrations.In co-culture systems of lung adenocarcinoma PC9 cells,CD8+T cells and DCs(overexpressing CCL19 with or without anti PD-1 antibody treatment),the expressions of granzyme B,perforin,IFN-γ,and Ki-67 in T cells were analyzed using flow cytometry.Results The patients with partial or complete remission following immunotherapy had a significantly higher baseline CCL19+DC infiltration level in lung adenocarcinoma tissues than those with poor responses.CCL19+DC infiltration had an area under ROC curve of 0.785,a sensitivity of 75.6%,and a specificity of 62.8%for predicting immunotherapy efficacy.The expression of CD8+T cell surface molecules Granzyme B(P<0.01),Perforin(P<0.01),IFN-γ(P<0.01)and Ki-67(P<0.001)in patients with high expression of CCL19+DC were higher than those in patients with low expression of CCL19+DC.The baseline CCL19+DC infiltration level was positively correlated with immunotherapy efficacy(P=0.003),CTL infiltration of(r=0.6657,P<0.001)and CD8+T cell infiltration(P=0.007).In the co-cultured cells,CCL19 overexpression combined with anti-PD1 treatment of the DCs more strongly enhanced cytotoxicity and proliferation of CD8+T lymphocytes than either of the single treatments(P<0.01 or 0.001).Conclusion The baseline CCL19+DC infiltration level in lung adenocarcinoma microenvironment is positively correlated with immunotherapy efficacy and CTL infiltration and can thus predict the response to immunotherapy.
5.Endovascular treatment for symptomatic non-acute long-segment occlusion of the internal carotid artery: comparison with drug therapy
Yue ZHU ; Chao HOU ; Shuxian HUO ; Qin YIN ; Xianjun HUANG ; Wen SUN ; Guodong XIAO ; Yong YANG ; Hongbing CHEN ; Min LI ; Mingyang DU ; Ruidong YE
International Journal of Cerebrovascular Diseases 2024;32(8):576-584
Objective:To investigate the clinical outcome of endovascular treatment vs. drug treatment in patients with symptomatic non-acute long-segment occlusion of the internal carotid artery. Methods:Based on prospective cohort registration research data, patients with symptomatic non-acute long-segment occlusion of internal carotid artery were retrospectively included. They were divided into a drug treatment group and an endovascular treatment group according to the actual treatment received. The latter was further divided into a successful recanalization group and an unsuccessful recanalization group. The endpoint events included ipsilateral ischemic stroke, any stroke, and all-cause death. Multivariate logistic regression analysis was used to compare the endpoint events between groups during the perioprocedural period (within 30 days), and multivariate Cox proportional hazards model was use to compare the endpoint events between the groups during the long-term follow-up. Results:A total of 684 patients were included, of which 570 (83.33%) were male, median aged 63 years (interquartile range, 56-70 years). Three hundred and fifty-three patients (51.6%) received drug treatment; 331 (48.4%) received endovascular treatment, of which 161 (48.6%) had successful recanalization. The median follow-up time was 1 223 days (interquartile range, 646.5-2 082 days), with 109 patients (15.9%) experiencing stroke recurrence events (including 87 ipsilateral ischemic stroke) and 78 (11.4%) experiencing all-cause mortality. The risk of any stroke during the perioprocedural period in the successful recanalization group was significantly higher than that in the drug treatment group (odds ratio 3.679, 95% confidence interval 1.038-13.036; P=0.044), but the risk of ipsilateral ischemic stroke recurrence (risk ratio 0.347, 95% confidence interval 0.152-0.791; P=0.012) and all-cause mortality (risk ratio 0.239, 95% confidence interval 0.093-0.618; P=0.003) during the long-term follow-up were significantly lower than those in the drug treatment group. Conclusions:In patients with symptomatic non-acute long-segment occlusion of the internal carotid artery, endovascular treatment can increase the risk of stroke recurrence within 30 days, but successful recanalization can reduce the risks of long-term ipsilateral ischemic stroke recurrence and all-cause mortality.
6.Review of sublobar resection for lung adenocarcinoma with ground-glass presence
Mingyang ZHU ; Yuanyuan XU ; Jianghao REN ; Jiazheng HUANG ; Ruonan LI ; Qiang TAN
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(7):922-927
Surgery is the mainstay of lung cancer treatment options.Traditionally,lobectomy has held its place as the gold standard for treating localized lung cancer,while sublobar resection,including wedge resection and segmentectomy,was primarily considered as an alternative,often reserved for patient ineligible to sustain a radical intervention.However,with the widespread application of computed tomography(CT)to clinical practice,the increasing detection rate of pulmonary ground glass nodules(GGNs)has reshaped this landscape.Ground glass opacity(GGO)in persistent lung nodules is an indicative factor of a favorable prognosis,typically corresponding to pathological changes such as atypical adenomatous hyperplasia(AAH),adenocarcinoma in situ(AIS),or adenocarcinomas predominantly featuring a lepidic growth pattern.A large number of retrospective studies have shown that sublobar resection can achieve satisfactory therapeutic outcomes for such lesions.A series of prospective studies from Japan have confirmed that for early-stage lung cancers dominated by GGOs,sublobar resection is also a viable curative surgical option.The follow-up data showed that there was no statistical difference in the survival status of these patients compared with that of pulmonary lobectomy.This article aims to delve into the role of limited lung resection in the context of lung adenocarcinoma presenting with GGO features.
7.Assessment of baseline CCL19+dendritic cell infiltration for predicting responses to immunotherapy in lung adenocarcinoma patients
Mingyang ZHU ; Bokang WANG ; Xiusen ZHANG ; Kexu ZHOU ; Zeyu MIAO ; Jiangtao SUN
Journal of Southern Medical University 2024;44(8):1529-1536
Objective To explore the correlation of baseline CCL19+dendritic cell(CCL19+DC)infiltration in lung adenocarcinoma microenvironment with immunotherapy efficacy and CD8+T cell infiltration.Methods We retrospectively analyzed the data of patients with lung adenocarcinoma hospitalized at First Affiliated Hospital of Henan University of Science and Technology from January,2020 to December,2023,and collected tissue samples from 96 patients undergoing immunotherapy for assessing CCL19+DC and CD8+T cell infiltration using immunofluorescence assay.We evaluated the predictive value of baseline CCL19+DCs for patient responses to immunotherapy using receiver-operating characteristics(ROC)curves and analyzed the correlations of baseline CCL19+DC expression with immunotherapy efficacy and CD8+T cell and cytotoxic T lymphocyte(CTL)infiltrations.In co-culture systems of lung adenocarcinoma PC9 cells,CD8+T cells and DCs(overexpressing CCL19 with or without anti PD-1 antibody treatment),the expressions of granzyme B,perforin,IFN-γ,and Ki-67 in T cells were analyzed using flow cytometry.Results The patients with partial or complete remission following immunotherapy had a significantly higher baseline CCL19+DC infiltration level in lung adenocarcinoma tissues than those with poor responses.CCL19+DC infiltration had an area under ROC curve of 0.785,a sensitivity of 75.6%,and a specificity of 62.8%for predicting immunotherapy efficacy.The expression of CD8+T cell surface molecules Granzyme B(P<0.01),Perforin(P<0.01),IFN-γ(P<0.01)and Ki-67(P<0.001)in patients with high expression of CCL19+DC were higher than those in patients with low expression of CCL19+DC.The baseline CCL19+DC infiltration level was positively correlated with immunotherapy efficacy(P=0.003),CTL infiltration of(r=0.6657,P<0.001)and CD8+T cell infiltration(P=0.007).In the co-cultured cells,CCL19 overexpression combined with anti-PD1 treatment of the DCs more strongly enhanced cytotoxicity and proliferation of CD8+T lymphocytes than either of the single treatments(P<0.01 or 0.001).Conclusion The baseline CCL19+DC infiltration level in lung adenocarcinoma microenvironment is positively correlated with immunotherapy efficacy and CTL infiltration and can thus predict the response to immunotherapy.
8.Constructing an evaluation index system of primary practice bases for standardized training of assistant general practitioners in Beijing
Haijin LI ; Hui LI ; Mingyang LIANG ; Chenli ZHU ; Shuang SHAO ; Juan DU
Chinese Journal of General Practitioners 2024;23(6):633-640
Objective:To construct an evaluation index system of primary practice bases for standardized training of assistant general practitioners in Beijing.Methods:From September to December 2023, the evaluation index system was initially developed using the Context, Input, Process, and Product Evaluation Model (CIPP model), then 20 experts engaged in clinical teaching management and general practice standardized training base evaluation were invited for three rounds of Delphi expert consultation, and the weights of the indicators at all levels were determined using the Analytic Hierarchy Process.Results:The response rates of the three rounds of expert consultation were 100.0%, 95.0%, and 95.0% respectively. The degree of authority of the expert consultations was greater than 0.70. The index importance and feasibility coordination coefficients of three rounds of expert consultation were 0.123 and 0.100 ( P<0.001), 0.064 and 0.068 ( P>0.05), and 0.149 and 0.221 ( P<0.001), respectively, indicting the convergence of the experts′ opinions. The evaluation indexes of the primary practice bases for standardized training of assistant general practitioners in Beijing were finally constructed, including five first-level indexes, including qualification and conditions, teaching organization and system, teaching staff, operation management and quality control; 11 second-level indexes, including basic conditions, department setup, teaching facilities, teaching organization and teaching system; and 25 third-level indexes, including qualification, scale, essential departments, conditional departments and basic teaching facilities. The weights of the five first-level indexes were qualification and conditions (0.333), teaching organization and system (0.167), teaching staff (0.167), operation management (0.167), quality control (0.167). Among the 11 second-level indexes, the top five weights were basic conditions (0.163), department setup (0.104), teaching organization (0.084), teacher requirements (0.084), and basic practice rotation management (0.084). Among the 25 third-level indexes, the top five weights were qualification (0.083), quality control process (0.082), scale (0.081), essential departments (0.053), and conditional departments (0.051). Conclusion:The evaluation index system of primary practice bases for standardized training of assistant general practitioners in Beijing has been constructed in this study based on Delphi expert consultations.
9.Research on neural network in childhood absence epilepsy based on multi-frequency magnetoencephalography
Yingfan WANG ; Mingyang DU ; Minghao LI ; Jing LU ; Yinjie ZHU ; Xiaoshan WANG
Chinese Journal of Neurology 2024;57(10):1101-1110
Objective:To investigate alterations in functional connectivity network and brain function activity in childhood absence epilepsy (CAE) based on neuromagnetic signals by using multi-frequency magnetoencephalography.Methods:Twenty-five drug-naive children diagnosed with CAE from the Affiliated Brain Hospital of Nanjing Medical University and the Affiliated Children′s Hospital of Nanjing Medical University during October 2022 and March 2024 and 25 healthy controls matched for age and sex from community were recruited in this cross-sectional study. The interictal data, ictal data of CAE and healthy control children were collected using a CTF-275 channel magnetoencephalography system. Corrected amplitude envelope correlation was used to construct functional connectivity network, and network-based statistics were used to compare network differences between groups. Relative power spectral density was used to describe the distribution characteristics of whole-brain spectral power. Nonparametric permutation tests were conducted 1 000 times to compare spectral power differences between groups.Results:In terms of functional connectivity, significant increases in network activity were observed in the low-frequency bands (δ, θ) during interictal periods in children with CAE. A sub-network with significantly increased functional connectivity, including key nodes of the default mode network, was observed in the δ band. Compared with interictal periods, functional connectivity in the δ band decreased during absence seizures in children with CAE, while connectivity in the mid-to-high-frequency bands (α-γ2) increased. In terms of spectral power, children with CAE during interictal periods exhibited widespread magnetic source activation in the δ band, activation in parts of the parietal and occipital lobes in the θ band, and significantly decreased magnetic source intensity in most areas of the parietal, occipital, and temporal lobes in the α-γ2 band. Compared with interictal periods, children with CAE during absence seizures exhibited widespread magnetic source activation in the δ band, and significantly decreased activation in the θ-γ2 band. According to the magnetic source distribution map, during absence seizures, the frontal lobe replaced the parieto-occipital region in cortical activation in the α band.Conclusion:In the analysis of functional network and spectral power based on multi-frequency neuromagnetic signals, the network pattern and magnetic source activation of children with CAE during interictal periods were significantly different from those of healthy children, and there were characteristic changes in neuromagnetic signals during consciousness impairment caused by absence seizures in children with CAE.
10.Risk factors for supine hypotension syndrome after cesarean section and development of a prediction model in parturients
Pengfei NIU ; Mingyang SUN ; Ningtao LI ; Enqiang CHANG ; Yongfeng ZHU ; Jiaqiang ZHANG ; Xiaoguo RUAN
Chinese Journal of Anesthesiology 2023;43(11):1311-1315
Objective:To identify the risk factors for supine hypotension syndrome (SHS) after spinal anesthesia and establish a predictive model in parturients.Methods:The medical records from pregnant women undergoing elective cesarean section were retrospectively analyzed. According to the standard that SBP dropped by 30 mmHg or below 80 mmHg after spinal anesthesia, the parturients were divided into non-SHS group and SHS group. The general data from patients and difference of external iliac vein flow (ΔIVF) during postural changes before anesthesia were collected. The factors with statistically significant differences between groups were included in the logistic regression model, the risk factors were identified and the weighted score regression prediction model was established, and the receiver operating characteristic curve was drawn to evaluate the model.Results:There were 64 parturients developed SHS after spinal anesthesia, with an incidence of 54.7%. Logistic regression analysis showed that fetal abdominal circumference, amniotic fluid index, ΔIVF and consumption of norepinephrine were independent risk factors for SHS after spinal anesthesia. The area under the receiver operating characteristic curve was 0.983, 95% confidence interval was 0.968-0.999, the sensitivity was 90.6%, the specificity was 96.2%, and the Youden index was 0.868. The prediction model of the line chart was tested by Hosmer-Lemshow, P=0.984, and the C index visualized the line chart model was 0.983. Conclusions:Fetal abdominal circumference, amniotic fluid index, ΔIVF and consumption of norepinephrine are independent risk factors for SHS after spinal anesthesia in parturients, and the risk prediction model can effectively predict the occurrence of SHS after spinal anesthesia.


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