1.Preliminary exploration of diversified clinical practice mode of eight-year MD program in military medical university
Lian DUAN ; Hongting ZHENG ; Zihui XU
Chinese Journal of Medical Education Research 2005;0(05):-
Diversified clinical practice mode will be explored preliminarily in population of Eight-year MD in military medical university.The successful teaching includes ideological education with military character,standard and systemic clinical traning,liberal arts education and emphasizing medical consciousness.
2.Reform of clinical practice teaching in military medical colleges
Min LONG ; Zihui XU ; Hongting ZHENG ; Cuie YIN
Chinese Journal of Medical Education Research 2011;10(4):466-467
As a key of military medical stodents education,clinical practice teaching continues to progress with the changing needs of society and the army advances.Transforming teaching philosophy,reforming curriculum,strengthening the hardware construction,improving the faculty building,exploring new models of teaching,practicing learner-centered teaching are important teaching experiences,according to the actual situation in our hospital for many years.In this paper,we illustrate the main contradiction,the current response measures taken and achievement achieved
3.Proteome analysis of nuclear matrix proteins during arsenic trioxide induced apoptosis in K562 cells
Zihui WANG ; Ding YU ; Jie ZHENG ; Ya CHEN
Journal of Peking University(Health Sciences) 2004;0(02):-
Objective: To investigate arsenic trioxide (As 2O 3) -target interactions at the level of nuclear matrix (NM) in chronic myelogenous leukemia cell line K562 by proteomics. Methods: DNA fragmentation analysis was used for As 2O 3 induced apoptosis of K562 cells. The nuclear matrix proteins were analyzed by high-resolution two-dimensional gel electrophoresis and computer-assisted image analysis. Results: While more than 200 protein spots were shared among the nuclear matrices, about 18 distinct spots were found characteristic of As 2O 3 treated cells. Onset of mass mange apoptosis, and the profiling of nuclear matrix proteins had been alternated and it was a more sensitive indicator than nucleosomal DNA fragmentation against As 2O 3 treatment. Conclusion: As 2O 3 induced apoptosis in K562 cells in a dose-time-dependent manner. As 2O 3 might be clinically useful in treatment of chronic myelogenous leukemia and the changes of nuclear matrix proteins in the treated cells can be used as a useful indicator for the treatment.
4.The value of interleukin 35 in assessing the prognosis of severe hepatitis
Yong DENG ; Jie YANG ; Zheng DENG ; Shuqiang OU ; Zihui QIU ; Shuigen HUANG ; Yu CHEN
Chinese Journal of Primary Medicine and Pharmacy 2016;23(10):1470-1472,1473
Objective To explore the significance of interleukin -35 (IL -35)in serum of patients with severe hepatitis.Methods Collected 39 cases of chronic hepatitis B(CHB)patients and severe hepatitis,and col-lected 19 cases of healthy control's(HC)peripheral blood at the same time.ELISA method was used to detect IL -35 levels.Results IL -35 in CHB and severe hepatitis group [(483.5 ±280.7)ng/mL and (277.9 ±248.7)ng/mL] were higher than HC group (50.5 ±47.8)ng/mL(t =2.089,3.303,P =0.044,0.002).In severe hepatitis group, the IL -35 levels in survivors group (305.3 ±301.2)ng/mL was higher than death group (78.7 ±33.2)ng/mL (P =0.012).IL -35 was positively correlated with ALT and AST,the correlation coefficient were 0.649 and 0.599. Conclusion IL -35 is involved in the pathogenesis of hepatitis B process,the low serum IL -35 levels in severe hepatitis patients may herald a bad prognosis.
5.Effect of tetramethylpyrazine on autophagy in hippocampal neurons of rats with sepsis-associated en-cephalopathy
Hao ZHU ; Yijun CHEN ; Zihui LU ; Changshun HUANG ; Yiwei ZHANG ; Haidong ZHOU ; Li ZHENG
Chinese Journal of Anesthesiology 2017;37(10):1278-1280
Objective To evaluate the effect of tetramethylpyrazine on autophagy in the hippocam-pal neurons of rats with sepsis-associated encephalopathy. Methods Sixty SPF healthy male Sprague-Daw-ley rats, aged 11-14 weeks, weighing 200-240 g, were divided into 3 groups(n=20 each)using a ran-dom number table: sham operation group(group Sham), sepsis group(group Sep)and tetrameth-ylpyrazine group(group TMP). Sepsis was induced by cecal ligation and puncture(CLP), and group Sham only underwent simple laparotomy. Tetramethylpyrazine 10 mg∕kg was injected intraperitoneally at 1 h before CLP in group TMP. Morris water maze test was performed in 10 rats randomly selected at 12 and 36 h after CLP. Then the rats were sacrificed, and hippocampi were isolated for determination of the expres-sion of microtubule-associated protein 1 light chain 3Ⅰ(LC3Ⅰ), LC3Ⅱ, Beclin-1 and p62 in hipp-ocampal tissues by Western blot, and the LC3Ⅱ∕LC3Ⅰratio was calculated. Results Compared with group Sham, the escape latency was significantly prolonged, the rate of time spent in the target quadrant was decreased, the LC3Ⅱ∕LC3Ⅰratio was increased, the expression of Beclin-1 was up-regulated, and the expression of p62 was down-regulated at 12 and 36 h after CLP in group Sep and group TMP(P<005). Compared with group Sep, the escape latency was significantly shortened, the rate of time spent in the target quadrant was increased, the LC3Ⅱ∕LC3Ⅰratio was decreased, the expression of Beclin-1 was down-regulated, and the expression of p62 was up-regulated at 12 and 36 h after CLP in group TMP(P<005). Conclusion The mechanism by which tetramethylpyrazine reduces sepsis-associated encephalopa-thy is related to inhibiting autophagy in the hippocampal neurons of rats.
6.Effects of the S1PR3 specific agonist peptide GPS-725.017 on acute lung injury in mice
Jungang ZHENG ; Yu YANG ; Jingjing XU ; Yong LI ; Pengjie ZHANG ; Jun WANG ; Zihui LU ; Changshun HUANG ; Gang CAO
Chinese Journal of Emergency Medicine 2022;31(11):1470-1475
Objective:To design a modified S1PR3 specific agonist, GPS-725.017, and investigate its protective effect on acute lung injury by promoting macrophage clearance of bacteria.Methods:A short peptide derived from the intracellular region of S1PR3 receptor was named GPS725.017, which was modified with norleucine (Nle) and myristicacid (myr) at its N terminus. Mice were divided into the sham operation group, solvent group and GPS-725.017 treatment group. The acute lung injury model was induced by endotracheal injection of E. coli (5×10 6 CFU), and the experimental group was treated with GPS-725.017 (10 mg/kg). The 48-h survival rate of mice was recorded. After 5 h of modeling, the bacterial load and inflammatory cytokines in peripheral blood and lung were detected, and Vps34 protein content in alveolar macrophages was determined by Western blot. After 12-h of modeling, lung tissues were collected for H&E staining and pathological scores. Results:Compared with the solvent group, the survival rate of mice in the GPS-725.017 treatment group was significantly improved ( P<0.01), the bacterial CFU in blood and alveolar lavage fluid was significantly lower than that in the solvent group ( P<0.001), and the levels of TNF-α and IL-1β in blood and alveolar lavage fluid were significantly lower than those in the solvent group ( P<0.001). Western blot showed that the expression level of Vps34 protein in alveolar macrophages was significantly higher than that in the solvent group ( P<0.01). Histopathology result showed that the pathological damage of lung in the treatment group was significantly less than that in the solvent group ( P<0.001). Conclusions:The modified synthetic S1PR3 specific agonist GPS-725.017 could specifically activate the S1PR3 receptor on the membrane of alveolar macrophages and up-regulate the expression level of intracellular Vps34 protein, which can promote the removal of bacteria in alveolar macrophages, significantly reduce the degree of lung injury and improve the survival rate in ALI mice.
7.Study on quality standard for Xuanxi Rongjin powder
Dan HU ; Chunguang LIU ; Hong CAO ; Guiying ZHANG ; Zihui MA ; Mingming ZHENG
Journal of Pharmaceutical Practice 2022;40(4):347-349
Objective To revise the qualitative and quantitative determination methods of Xuanxi Rongjin powder. Methods TLC was used to qualitatively identify Chuanxiong and Chuanshanlong. The content of cinnamaldehyde in the preparation was determined by HPLC with KR100-5C18 column (250 mm×4.6 mm, 5μm). The mobile phase was acetonitrile-water (35:65) and the detection wavelength was 290 nm. Results TLC can qualitatively identify Chuanxiong and Chuanshanlong. Cinnamaldehyde has a good linear relationship in the range of 0.0489~0.3260 µg/ml (r=1.00), The average recovery was 95.71% (RSD=1.78%). Conclusion The method has high sensitivity, good specificity, simple operation and good reproducibility.
8.Network meta-analysis of the effectiveness and safety of 3 kinds of snake venom hemocoagulase drugs for hemostasis in abdominal surgery
Zihui ZHENG ; Huijie PAN ; Zinan ZHAO ; Xin HU ; Pengfei JIN
China Pharmacy 2023;34(21):2631-2637
OBJECTIVE To systematically evaluate the hemostatic effect and safety of snake venom hemocoagulase drugs in abdominal surgery, so as to provide evidence-based evidence for clinic. METHODS Retrieved from Embase, Cochrane Library, PubMed, China Biomedical Literature Database, CNKI and Wanfang database, randomized controlled trials (RCTs) about 3 kinds of snake venom hemocoagulase drugs (Hemocoagulase injection, Hemocoagulase Bothrops atrox for injection, Haemocoagulase Agkistrodon for injection) in abdominal surgery were collected from the establishment of the database to Aug. 2023. Screening, quality evaluation, and data extraction were conducted on literature according to the inclusion and exclusion criteria, and Cochrane 5.1 was used for literature quality evaluation. The risk bias diagram and network diagram were drawn by Stata 15.1 software, and the Bayesian network meta-analysis was carried out by using R 3.6.2 software and Markov chain-Monte Carlo method. RESULTS A total of 11 studies were included, involving 1 401 patients, 852 in the study group, and 549 in the control group. In terms of hemostatic effect, Hemocoagulase injection was significantly superior to Haemocoagulase Agkistrodon for injection [MD=-2.45, 95%CI (-4.39,-0.24), P<0.05], and the probability of reducing intraoperative bleeding was ranked as follows: Hemocoagulase injection>hemocoagulase B. atrox for injection>Haemocoagulase Agkistrodon for injection; in terms of safety, there was no statistically significant difference between the three snake venom hemocoagulase drugs and placebo (P>0.05). CONCLUSIONS The hemostatic effect of Hemocoagulase injection in abdominal surgery is significantly better than that of Haemocoagulase Agkistrodon for injection; all three snake venom hemocoagulase drugs have good safety.
9.Efficacy and Safety of Xianling Gubao Capsule Combined with Glucosamine in the Treatment of Knee Osteoar- thritis:A Meta-analysis
Zihui ZHENG ; Tian ZHANG ; Qiong LI ; Wenying LI ; Hua YUAN ; Baige ZHANG ; Lin MA ; Pengfei JIN
China Pharmacy 2021;32(7):870-875
OBJECTIVE:To systematically evaluate the efficacy and safety of Xianling gubao capsule combined with glucosamine in the treatment of knee osteoarthritis (KOA),and to provide evidence-based reference for clinical treatment of KOA. METHODS:Retrieved from Cochrane library ,PubMed,Embase,CNKI,Wanfang database ,CBM and VIP during the inception to Nov. 2020,randomized controlled trials (RCTs)about glucosamine (control group )combined with Xianling gubao capsule (trial group)in the treatment of KOA were collected. After data extraction ,Cochrane 5.1.0 system evaluator manual was used to evaluate the quality of the included clinical studies met inclusion criteria ,and Rev Man 5.4 software was used for Meta-analysis. RESULTS : A total of 11 RCTs with 970 patients were included in this study. Results of Meta-analysis showed that cure rate [OR =2.41,95%CI (1.48,3.93),P<0.001],marked effective rate [OR =1.95,95%CI(1.49,2.56),P<0.001],total effective rate [OR =4.00,95%CI (2.57,6.24),P<0.001],visual analogue scale (VAS)score [MD =-2.34,95%CI(-2.51,-2.17),P<0.001],knee function score [MD =31.32,95%CI(27.89,34.75),P<0.001],Japanese Orthopaedic Association (JOA)low back pain score [MD = 12.22,95%CI(9.68,14.76),P<0.001] and pain relief time [MD =-1.55,95%CI(-1.84,-1.25),P<0.001] of trial group were all significantly better than those of control group. The incidence of ADR in trial group was significantly lower than control group [OR =0.04,95%CI(0.02,0.12),P<0.001]. CONCLUSIONS :Xianing gubao capsule combined with glucosamine in the treatment of KOA is significantly better in cure rate ,marked effective rate ,total effective rate ,VAS,score,knee function score,JOA low back pain score and pain relief time ,and could significantly reduce the incidence of ADR.
10.A Single-cell Transcriptome Atlas of Cashmere Goat Hair Follicle Morphogenesis.
Wei GE ; Weidong ZHANG ; Yuelang ZHANG ; Yujie ZHENG ; Fang LI ; Shanhe WANG ; Jinwang LIU ; Shaojing TAN ; Zihui YAN ; Lu WANG ; Wei SHEN ; Lei QU ; Xin WANG
Genomics, Proteomics & Bioinformatics 2021;19(3):437-451
Cashmere, also known as soft gold, is produced from the secondary hair follicles (SHFs) of cashmere goats. The number of SHFs determines the yield and quality of cashmere; therefore, it is of interest to investigate the transcriptional profiles present during cashmere goat hair follicle development. However, mechanisms underlying this development process remain largely unexplored, and studies regarding hair follicle development mostly use a murine research model. In this study, to provide a comprehensive understanding of cellular heterogeneity and cell fate decisions, single-cell RNA sequencing was performed on 19,705 single cells of the dorsal skin from cashmere goat fetuses at induction (embryonic day 60; E60), organogenesis (E90), and cytodifferentiation (E120) stages. For the first time, unsupervised clustering analysis identified 16 cell clusters, and their corresponding cell types were also characterized. Based on lineage inference, a detailed molecular landscape was revealed along the dermal and epidermal cell lineage developmental pathways. Notably, our current data also confirmed the heterogeneity of dermal papillae from different hair follicle types, which was further validated by immunofluorescence analysis. The current study identifies different biomarkers during cashmere goat hair follicle development and has implications for cashmere goat breeding in the future.