1.SRSF2 promotes glioblastoma cell proliferation by inducing alternative splicing of FSP1 and inhibiting ferroptosis
Dan HUA ; Xuexia ZHOU ; Qian WANG ; Cuiyun SUN ; Cuijuan SHI ; Wenjun LUO ; Zhendong JIANG ; Shizhu YU
Chinese Journal of Pathology 2024;53(5):430-438
		                        		
		                        			
		                        			Objective:To investigate the effect of serine/arginine-rich splicing factor 2 (SRSF2) on ferroptosis and its possible mechanism in glioblastoma cells.Methods:The online database of gene expression profiling interactive analysis 2 (GEPIA 2) and Chinese Glioma Genome Atlas were used to analyze the expression of SRSF2 in glioblastoma tissue and its association with patients prognosis. To validate the findings of the online databases, the pathological sections of glioblastoma and non-tumor brain tissues from Tianjin Medical University General Hospital, Tianjin, China were collected and analyzed by using immunohistochemistry. Silencing SRSF2 gene expression in glioblastoma cells by siRNA was analyzed with Western blot. The proliferation index was detected by using CCK8 assay. The rescued experiment was conducted by using expression plasmid of pcDNA3.1(+)-SRSF2. The activity of ferroptosis was assessed by using the levels of iron ions and malondialdehyde in glioblastoma cells and the changes in the ratio of glutathione to oxidized glutathione. The changes of gene expression and differential pre-mRNA alternative splicing (PMAS) induced by SRSF2 were monitored by using the third-generation sequencing technology analysis, namely Oxford nanopore technologies (ONT) sequencing analysis.Results:SRSF2 expression was higher in glioblastoma tissues than non-tumor brain tissues. Immunohistochemistry also showed a positive rate of 88.48%±4.60% in glioblastoma tissue which was much higher than the 9.97%±4.57% in non-tumor brain tissue. The expression of SRSF2 was inversely correlated with overall and disease-free disease survivals ( P<0.01). The proliferation index of glioblastoma cells was significantly reduced by silencing with SRSF2 siRNA ( P<0.01) and could be reversed with transfection of exogenous SRSF2. The levels of intracellulariron ions and malondialdehyde increased ( P<0.05), but the glutathione/oxidized glutathione ratio and the expression of key proteins in the glutathione pathway remained unchanged ( P>0.05). ONT sequencing results showed that silencing SRSF2 in glioblastoma cells could induce a significant alternative 3' splice site change on ferroptosis suppressor protein 1 (FSP1). Conclusion:SRSF2 inhibits the ferroptosis in glioblastoma cells and promotes their proliferation, which may be achieved by regulating FSP1 PMAS.
		                        		
		                        		
		                        		
		                        	
2.Pharmacokinetic study of the complication of Ephedra sinica and Prunus armeniaca in bronchial asthma model rats
Linlin CHEN ; Jingen XIE ; Xuecheng FAN ; Qian RAO ; Tianyi YANG ; Jiayu TIAN ; Xiong XIAO ; Wenjun GAO ; Wenhong LI
China Pharmacy 2024;35(13):1588-1593
		                        		
		                        			
		                        			OBJECTIVE To study the pharmacokinetic changes in the plasma and cerebrospinal fluid of bronchial asthma model rats after the complication of Ephedra sinica and Prunus armeniaca. METHODS SD male rats were randomly divided into blank group, model group, E. sinica group (12 g/kg, calculated by raw drug, similarly hereinafter), P. armeniaca group (6 g/kg) and E. sinica-P. armeniaca drug-pair group (12 g/kg of E. sinica+6 g/kg of P. armeniaca), with 6 rats in each group. Except for the blank group, the bronchial asthma model was induced by spraying rats in each group with an equal volume mixture of 2% acetylcholine chloride and 0.4% histamine phosphate, once a day, for 7 d. One hour before modeling every time, rats in each group were gavaged with the corresponding drug/normal saline, once a day, for 7 d. After the final administration and provocation of asthma, blood and cerebrospinal fluid collection were performed at different time points. The plasma and cerebrospinal fluid samples were pre-treated (with geranylgeranyl as the internal standard), and the mass concentrations of ephedrine/pseudoephedrine, methyl ephedrine and amygdalin in both samples were determined by liquid chromatography-tandem mass spectrometry. DAS 2.0 pharmacokinetic software was used to determine the main pharmacokinetic parameters through the non-atrial chamber model and to compare the changes of the pharmacokinetic parameters before and after the combination of the two drugs. RESULTS Compared with E. sinica group, cmax and AUC0-21.33 h (or AUC0-10.67 h) of ephedrine/pseudoephedrine and methyl ephedrine in the plasma and cerebrospinal fluid of rats were significantly reduced in E. sinica-P. armeniaca drug-pair group, while CLZ/F and VZ/F were significantly increased (P<0.05 or P<0.01); tmax of methyl ephedrine in the cerebrospinal fluid was significantly shortened (P< 0.05).Compared with P. armeniaca group, the t1/2 of amygdalin in the plasma of rats in E. sinica-P. armeniaca drug-pair group was significantly shortened, and CLZ/F was significantly increased (P<0.01); the tmax of bitter amygdalin in the cerebrospinal fluid was significantly shortened, and the AUC0-10.67 h, CLZ/F, and VZ/F were significantly increased (P<0.01). CONCLUSIONS The combination of E. sinica and P. armeniaca accelerates the absorption and elimination of ephedra alkaloids, thus reducing the accumulation of ephedra alkaloids in the bronchial asthma model rats.
		                        		
		                        		
		                        		
		                        	
3.Identification of Chemical Constituents in Shangketianshao Gel by LC-Q-TOF/MS
Li YANG ; Mengxuan LI ; Mengyu QIAN ; Wenjun LIU ; Ming YAN ; Liang CAO ; Chenfeng ZHANG ; Juan FU ; Zhenzhong WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(6):1515-1527
		                        		
		                        			
		                        			Objective The study analyzed and identified the components in Shangketianshao Gel by LC-Q-TOF/MS.Methods The analysis was performed on Agilent Eclipse Plus C18(250 mm×4.6 mm,5 μm)column was applied with methanol and 0.1%formic acid as mobile phase for gradient elution,flow rate was 1 mL·min-1 and column temperature was 30℃.The analytes were determined by positive and negative ion modes with electro-spray ionization source,combined message of standard reference and the literature.Results 103 constituents were identified,all compounds were classified to their medicinal materials derivation.22 compounds from Paeoniae Radix Rubra,33 compounds from Rhei Radix et Rhizoma,20 compounds from Angelicae Dahuricae,23 compounds from Cortex Phellodendr and 14 compounds from Trichosanthes kirilowii Maxim.9 components were jointly owned.Conclusion The study provided a suitable way for Chemical fundamentals and quality control of Shangketianshao Gel and laid a foundation for in depth studies of its pharmacodynamics and the quality control.
		                        		
		                        		
		                        		
		                        	
4.Research on the application of Benner's theory stratified training based on the "Protect the World" platform for neurorehabilitation nurses
Lishuang LIU ; Qian CHEN ; Haina SHI ; Jin WANG ; Wenjun DU ; Yajuan GUO
Chinese Journal of Medical Education Research 2024;23(8):1107-1112
		                        		
		                        			
		                        			Objective:To study the application effect of the Benner's theory stratified training based on the "Protect the World" platform for nurses specialized in neurological rehabilitation.Methods:A total of 70 nurses who underwent on-the-job training for neurorehabilitation nursing specialists in 2023 were divided into control group ( n=35) and observation group ( n=35) based on random odd and even numbers to receive different training methods. The control group received routine nursing training, while the observation group received Benner's theory stratified training based on the "Protect the World" platform. The theoretical and skill assessment scores, job competency, and satisfaction scores of two groups of nurses were compared before and after training. SPSS 25.0 was used for t-test and chi-square test. Results:Before training, there were no significant differences between the two groups of nurses in terms of theory scores [(88.35±4.41) vs. (89.43±4.07)] and skill assessment scores [(89.22±3.27) vs. (88.43±3.16)]. After training, the theoretical and skill assessment scores were significantly higher in the observation group as compared with the control group [(95.51±5.01) vs. (90.24±4.99) and (95.15±4.24) vs. (91.13±4.33), both P<0.05]. After training, the competency scores and total scores of education guidance, management function, diagnostic function, assistance role, and intervention treatment were significantly higher in the observation group than in the control group ( P<0.05). The satisfaction survey scores were significantly higher in the observation group than in the control group ( P<0.05). Conclusions:The Benner's theory stratified training based on the "Protect the World" platform can improve the theoretical and skill assessment scores of nurses specialized in neurological rehabilitation. This approach significantly boosts their overall professional competence and holds considerable potential for broader adoption.
		                        		
		                        		
		                        		
		                        	
5.Analysis on Academic Thought of Erectile Dysfunction Diagnosed and Treated by Zhejiang Faction TCM Doctor FENG Zhao-zhang
Yi YAN ; Lei LIU ; Wenjun QIAN
Journal of Zhejiang Chinese Medical University 2024;48(6):713-717
		                        		
		                        			
		                        			[Objective]To explore the academic thought of erectile dysfunction in Fengshi Jinnang Milu written by Zhejiang physician FENG Zhaozhang,and to provide reference for clinical practice of erectile dysfunction.[Methods]It takes the chapter of"Fangmai Yangwei"in Fengshi Jinnang Milu as the main research object,combines with other chapters in the book to systematically sort out the academic thought characteristics of the book in the treatment of erectile dysfunction.[Results]FENG praised the theory of"Mingmen",and paid special attention to the role of Yin and Yang,water and fire in the occurrence and development of diseases.He discussed the etiology and pathogenesis of erectile dysfunction in detail in the chapter of"Fangmai Yangwei".He believed that the damage of the five internal organs was the precursor of erectile dysfunction,and the imbalance of Yin and Yang,stagnation of fire caused by various reasons could lead to the occurrence of this disease.In the treatment,many prescriptions were listed,focusing on tonifying Yin and Yang,and most of them were pills.At the same time,the drug delivery was mainly based on wine,ginger soup,salt soup,etc.It also had the method of taking different decoctions at different times and the method of taking medicine by solar terms,which was quite distinctive.[Conclusion]FENG's discussion on the etiology,pathogenesis,diagnosis and treatment of erectile dysfunction is quite detailed,and his understanding is distinctive.The academic thought of impotence in his book also has practical significance for the treatment of erectile dysfunction today.
		                        		
		                        		
		                        		
		                        	
6.Development and Validation of a Predictive Model for Neonatal Sepsis
Linan GAO ; Pengkun YANG ; Wenjun CAO ; Qian ZHANG
The Journal of Practical Medicine 2023;39(21):2789-2795
		                        		
		                        			
		                        			Objective To establish a Nomogram predictive model for Neonatal Sepsis(NS)based on the general characteristics and initial complete blood count of neonates.Methods Retrospective analysis was conducted on the clinical data of newborns who were admitted for the first time to NICU and completed blood routine examination after admission in the MIMIC Ⅲ database.The LASSO-Logistic regression was used to investigate the prediction factors of NS,and then Nomogram prediction model was established.Internal validation was performed using boot-strap resampling with 1000 iterations.External validation of the model was performed using the data from newborns admitted to the First Affiliated Hospital of Zhengzhou University.We evaluated the predictive performance by Area Under the Receiver Operating Characteristic Curve(AUROC),C-index,calibration curve,and decision curve analysis(DCA).Results Among the 3,001 neonates,185 were diagnosed with NS.The Nomogram model was con-structed based on indicators such as respiratory distress syndrome,gestational age,birthweight,and initial hemato-logical parameters(red blood cell count,white blood cell count,lymphocyte percentage,neutrophil percentage),exhibiting good predictive performance with an AUROC of 0.860.Satisfactory predictive abilities were confirmed through both internal and external validation.Conclusion This study developed and validated a well-performing Nomogram prediction model.With simple parameters,it can help clinicians identify newborns at high risk early.
		                        		
		                        		
		                        		
		                        	
7.CXCL1 as a potential therapeutic target for diabetic nephropathy
Xin HU ; Lizhuo WANG ; Yao ZHANG ; Wenjun PEI ; Jinhan CHENG ; Chaoqun XIONG ; Yue QIAN ; Qiuheng ZHANG ; Xu WU ; Ying YANG ; Jialin GAO
Chinese Journal of Endocrinology and Metabolism 2023;39(12):1056-1066
		                        		
		                        			
		                        			Objective:To screen highly expressed inflammatory factors in diabetic nephropathy models using protein microarray, analyze differential genes and their regulatory networks, and predict potential therapeutic small molecular compounds.Methods:The inflammatory factor microarray was used to screen the inflammatory factors with the same tendency in the cell model and animal model of diabetic nephropathy. The differential genes screened by R language were enriched and analyzed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG). STRING builds a protein interaction network online, Cytoscape software analyzes the core subnetwork, and Connectivity Map searches for and predicts small molecule compounds.Results:Diabetic nephropathy model was established using 16-week-old db/db mice and mesangial cells stimulated with high glucose, and the expression of C-X-C motif chemokine ligand 1(CXCL1) was elevated in both models. Multiple GEO datasets indicated a strong association between the high expression of CXCL1 and diabetic nephropathy. Specifically, GSE30122 showed an upregulation of 30 genes and a downregulation of 23 genes. GO enrichment analysis focused on biological processes such as humoral immunity and lipopolysaccharide response; While KEGG enrichment was mainly in pertussis and coagulation cascade pathways. CytoHubba identified 10 hub genes, such as ALB, LUM, and CXCL1. In addition, 10 small molecule compounds were predicted as potential therapeutic drugs using Connectivity Map.Conclusions:CXCL1 may serve as a key gene in the occurrence and development of diabetic nephropathy. ALB, LUM, CXCL1, MMP7, TGFBI, CCL2, S100A4, SOX9, VCAN, and CLU may participate in the regulatory network centered around CXCL1. There are 10 small molecular compounds demenestrating the potential to be therapeutic agents.
		                        		
		                        		
		                        		
		                        	
8.Analysis of Taijiquan-related clinical trial registration characteristics and reporting quality
Zhaodi WANG ; Tong TANG ; Chao SHEN ; Wenjun QIAN
International Journal of Traditional Chinese Medicine 2023;45(8):1027-1033
		                        		
		                        			
		                        			Objective:To analyze the registration characteristics and reporting quality of Taijiquan-related clinical trials.Methods:A database search of the China Clinical Trials Registry (ChiCTR) and ClinicalTrials.gov was performed by computer to collect basic information, study content, interventions, and other registration information of Taijiquan-related clinical trials from inception to June 30, 2022. The WHO TRDS was used to evaluate the registration quality of clinical trials.Results:Totally 381 Taijiquan-related clinical trials were incorporated, of which 241 (63.25%) were prospective registration and 140 (36.75%) were retrospective registration. The quantity of Taijiquan-related clinical trial registrations generally showed an increasing trend, reaching a peak in 2020 (14.70%). The number of clinical trials registered in Shanghai accounted for the most (9.97%). The largest contributor to the registered trials was Fujian University of Traditional Chinese Medicine (4.46%). 55.12% of registered studies were funded by hospitals and universities. The registered studies were most focused on cognitive impairment. 74.54% of the studies adopted randomized parallel controls, and the sample size was mainly between 20 and 200 (80.31%), and the age of the subjects was concentrated above 39 years (53.28%). The average report completion rate of WHO TRDS items was 86.90%.Conclusions:Presently, the development trend of clinical trials related to Taijiquan is relatively promising. However, imbalances exist in some aspects, for instance distribution of registration areas and institutions, funding allocation, and population of subjects. The description of some registration items is missing or not comprehensive, so corresponding measures are required to improve the quality of clinical trial design and to optimize registration details.
		                        		
		                        		
		                        		
		                        	
9.Clinical characteristics of 225 patients with bone and joint infection
Xianxian LIU ; Xu ZHAO ; Wenjun CHEN ; Qian LI
Chinese Journal of Infectious Diseases 2022;40(4):211-216
		                        		
		                        			
		                        			Objective:To analyze the clinical characteristics and pathogen distributions of the patients with bone and joint infection.Methods:The clinical data and etiological results of 225 patients with bone and joint infection from January 2008 to October 2020 in Huashan Hospital, Fudan University were retrospectively analyzed.Statistical analysis was conducted by chi-square test.Results:Of the 225 cases with bone and joint infection, 75.6%(170/225) were extremities and other osteomyelitis, 16.0%(36/225) were suppurative arthritis, 8.4%(19/225) were spinal osteomyelitis. Non-implants related infection accounted for 80.4%(181/225) of the cases, while 19.6%(44/225) of the cases were implants related infection. The main clinical manifestations were localized pain (48.4%(109/225)), dyskinesia (47.6%(107/225)), localized swelling (28.9%(65/225)), fever (28.0%(63/225)), and increased purulent exudation (24.9%(56/225)). The proportions of localized pain (55.8%(101/181)) and fever (31.5%(57/181)) of non-implants infection were higher than those of implants infection (18.2%(8/44) and 13.6%(6/44), respectively), while the proportion of increased purulent exudation in implants infection (50.0%(22/44)) was higher than that in non-implants infection (18.8%(34/181)). There were all significant differences between the two groups ( χ2=15.49, 5.60 and 18.45, respectively, all P<0.050). Of the 225 cases, 63 cases(28.0%) had complications with other site infection, especially soft tissue infection and bloodstream infection. A total of 106 strains of pathogens were isolated from 225 specimens, 58.5%(62/106) of them were Gram positive bacterium.Among them, 34.0%(36/106) were Staphylococcus aureus, with the rate of methicillin resistant Staphylococcus aureus (MRSA) isolation accounting for 11.3%(12/106). Laboratory tests showed that 40.4%(91/225) of the patients had elevated erythrocyte sedimentation rate (ESR), 32.9%(74/225) patients had elevated C-reactive protein (CRP). Proportions of patients with elevated ESR (43.6%(79/181)) and CRP (37.6%(68/181)) in non-implants infection were significantly higher than those in implants infection (27.3%(12/44) and 13.6%(6/44), respectively). There were significant differences between the two groups ( χ2=3.94 and 9.19, respectively, P=0.047 and 0.002, respectively). Conclusions:The main clinical manifestations of bone and joint infection are localized pain, dyskinesia, localized swelling, fever and increased purulent exudation. Patients with bone and joint infection are easy to be complicated with soft tissue infection and bloodstream infection, and often accompanied by increased ESR and CRP levels. Gram positive bacterium are the main pathogens.
		                        		
		                        		
		                        		
		                        	
10.Pharmacy active consultation:an innovative model of hospital pharmaceutical services
Qian DU ; Xin XI ; Jie DONG ; Jun ZHU ; Guili HUANG ; Jinghui GOU ; Hailong RAN ; Cheng CHEN ; Zhanfeng BAI ; Dongxuan LI ; Yuzhu DONG ; Wenjun LI ; Yi SONG ; Songqing LIU
China Pharmacy 2022;33(21):2666-2670
		                        		
		                        			
		                        			Pharmacy active consultation refers to the spontaneous activity that clinical pharmacists take the initiative to go to clinical departments to help doctors solve problems related to drug use in clinical practice ,put forward drug treatment suggestions or provide pharmaceutical services ,and form medical documents . The difference between pharmacy active consultation and pharmacy consultation is that the latter is generally proposed by the clinician ,who sends a consultation invitation to the pharmacy department in the hospital information system ,and the clinical pharmacist will go to the consultation after receiving it ,while the former is a pharmaceutical service mode that the clinical pharmacist takes the initiative to carry out in the clinical department . On the basis of routine pharmacy active consultation ,clinical pharmacists in our hospital also further carried out a special active consultation mode (including prompt special active consultation for patients with multidrug resistance bacteria positive ,active monitoring and intervention for patients with drug -induced liver injury ),and patient pharmaceutical supervision in the form of return visit of pharmacy active consultation . Pharmacy active consultation and its special active consultation possess the characteristics of initiative , early and extensive coverage ,as a supplement to resident clinical pharmacy services . Pharmacy active consultation could help the pharmacy department to improve service efficiency ,provide a new perspective for medical institutions to carry out efficient pharmaceutical services ,and supply new ideas for the reform of pharmaceutical services in China .
		                        		
		                        		
		                        		
		                        	
            
Result Analysis
Print
Save
E-mail