1.HSV_1-tk/GCV GENE THERAPY IN GLIOMA ANIMAL MODEL
Acta Anatomica Sinica 1957;0(04):-
Objective To evaluate the therapeutic effect and the mechanism of herpes simplex virus thymidine kinase Ⅰ type (HSV 1\|tk) and Ganciclovir(GCV) in animal model of human glioma. Methods We demonstrated that tk gene was stably integrated into the genome of retrovirus vector producing cell line pN 2A\|tk/VPC(VPC) by Southern blot hybridization; then we established the nude mice model of glioma by inoculating the VPC and the human glioma cells DBTRG\|05MG(05MG) at 1∶1,1∶4 ratios respectively(only inoculated 05MG cells as control group), then GCV treatment was administrated i.p.,30mg/(kg\5d), twice daily for 14 days. A week later, the nude mice were sacrificed and the pathological sections of tumor tissues were observed by light microscopy. Results The tumor mass of 1∶1 group decreased remarkably compared with 1∶4 group or control group respectively ( P
2.Combined use of thoracoscopy and laparoscopy for the treatment of esophageal carcinoma:A report of 2 cases
Jian CUI ; Dazhong LIU ; Yinan LIU
Chinese Journal of Minimally Invasive Surgery 2005;0(09):-
Objective To explore the feasibility and short-term efficacy of combined use of thoracoscopy and laparoscopy for the treatment of esophageal carcinoma. Methods The study included 2 patients.The operation was conducted under general anesthesia.The esophagus was disconnected and the diaphragm was opened under a 4-port thoracoscopy.Then the stomach was dissociated under a 4-port laparoscopy.The esophagus was mobilized outside the thorax through a!cervical incision after the imple mentation of laparoscopic performance.Under direct vision,the lesion was removed and an anastomosis was made.A naso-intestinal tube and a naso-gastric tube were placed,respectively.Results The operation time was 450 and 470 min,and the intraoperative blood loss was 150 and 200 ml,respectively.The lesion was thoroughly removed with negative cutting edges.Postoperative pathological reports showed well-differentiated squamous cell carcinoma(stage T_1N_0M_0) in both of patients.Follow-up for 4 months in two cases found no recurrence.Conclusions Combined use of thoracoscopy and laparoscopy for the treatment of esophageal carcinoma ensures the feasibility and safety of esophagectomy,with minimal invasion and low postoperative complication incidence.
3.Alternation and rehabilitation of proprioceptive sense following anterior cruciate ligament reconstruction
Shuhong WU ; Yi LIU ; Yinan ZHANG
Chinese Journal of Tissue Engineering Research 2009;13(50):9962-9965
Anterior cruciate ligament (ACL) has two important functional roles, including biomechanics and proprioceptive sense. A groat propr!oceptive sense is a basis to exactly obtain highly functional exercise. ACL injury may block perception and conduction information and seriously influence motion and daily activities. A complete rehabilitation of ACL function depends on rehabilitation of both mechanical structure and proprioceptive sense. Therefore, reconstruction of joint function following ACL injury is focus on reconstruction of both joint biomechanical stability and proprioceptive sense. This study was designed by distribution and function of proprioceptive sense to analyze the altemation of propdoceptive sense following ACE injury, and to investigate the related factors and ways for rehabilitation of propriocaptive sense following ACL reconstruction.
4.Differential expression profile of microRNAs in different types of uveal melanoma
Yinan, LIU ; Lei, SHAO ; Wenbin, WEI
Chinese Journal of Experimental Ophthalmology 2017;35(9):778-785
Background Researches showed that microRNA (miRNA) is involved in the pathogenesis and development of many tumors and plays a cancer-suppressing-gene like role or cancer-gene like action.Uveal melanoma (UM) is a common ocular malignant tumor in aduh,and the mechanism of UM pathogenesis and metastasis is still not elucidated.Understanding the differential expression of miRNAs in UM is expected to provide a basis for targeting treatment of UM.Objective This study was to screen and compare the expression profiles of miRNAs in epithelial type and spindle type of UM.Methods The use of specimens of UM and donor eyes was approved by Ethic Commission of Capital Medical University.The specimens of epithelial type (4 specimens) and spindle type (4 specimens) of UM confirmed by histopathology and immunochemistry were collected in Beijing Tongren Hospital from March 2013 to October 2015.The expression profile of miRNA was assayed by miRNA array.Normal uveal specimens were obtained from 8 donors as controls.The differentially expressing miRNAs were screened by intergroup differential folds of ≥2.The genes targeting differentially expressed miRNAs were predicted using multiples online software and the potential signal pathway was further analyzed by bioinformatics method.The microarray outcomes were validated by real-time quantitative PCR.Results Spindle cell type and epithelial cell type of UMs were verified by hematoxylin and eosin staining.Immunochemistry showed that HMB45,melanin-A and S-100 were positively expressed in the two types of UM.Compared with the normal uveal tissue,109 differentially expressed miRNAs,including 29 up-regulated and 80 down-regulated miRNAs were seen in the spindle cell type of UM,and in the epithelial cell type of UM,50 differentially expressed miRNAs were found,including 23 up-regulated and 27 down-regulated miRNAs.In spindle cell type of UM,the up-regulated miRNAs were miR-146a-5p,miR-25-3p and miR-29b-l-5p,and down-regulated ones were miR-126-5p,miR-183-5p and miR-96-5p.In epithelial cell type of UM,the up-regulated miRNAs were miR-155-5p,miR-210 and miR-378a-5p,and down-regulated ones were miR-199a-5p,miR-143-3p and miR-143-5p.In addition,the mutual up-regulated miRNA in both spindle cell type of UM and epithelial cell type of UM were miR-132-3p,miR-21-5p,miR-34a-5p and miR-34b-5p,and mutual down-regulated ones were miR-125b-2-3p,miR-126-3p,miR-199a-3p and miR-214-3p.Bioinformatics analysis showed that the targeting genes predicted by differentially expressed miRNAs participated in a number of biological pathways,including cancer-related pathway,mitogenactivated protein kinase (MAPK) pathway,Wnt signal pathway and intercellular adhesion,endocytosis,prostatic cancer,colorectal cancer pathways.Conclusions Many differentially expressed miRNAs exist among spindle cell type of UM,epithelial cell type of UM and normal uveal tissue.These miRNAs participate in or regulate the biological behaviour of UM via different signal pathways.
5.The application of fluorescien sodium guided resection in glioma
Ming LIU ; Xiaoliang LIU ; Nan LIU ; Yinan LUO
Practical Oncology Journal 2015;(3):221-224
Objecitive Under the fluorescent microscope ,we used fluorescein sodium fluorescence to determine glioma boundary ,thus gliomas removed through surgery more thoroughly .Mtehods We randomly se-lected 14 patients who were admitted in the First Hospital of JiLin University as the research objects ,patients with glioma were diagnosed as glioma according to the physical signs ,physical examination a,nd imaging findings before surgery.Diagnosed with glioma,intraoperative application of fluorescein sodium yellow fluorescence was deter -mined the tumor boundary ,and removal of the tumor ,according to the fluorescence intensity strength is different . The pathological diagnosis was to determine the boundary of fluorescent was accurate .Postoperative examined MRI was performed in order to make clear the excision of the tumor ,and the neurological condition of postoperative was observed.Results Glioma could be inspired by yellow fluorescence under fluorescent microscope .The normal brain tissue was not light .Postoperative pathological results showed that the fluorescent yellow area contained a lot of glioma cells,pale yellow fluorescence area found a small amount of glioma cells .Postoperative enhanced MRI scan had confirmed that application of fluorescein sodium could be more thoroughly resection of glioma ,postopera-tive dysfunction was reduced .Conclusion This method is prior to tumor boundary observasion without fluoresent staining and reducing the recurrence of the tumor and reducing the normal brain tissue damage ,and therefore,im-proving the quality of postoperative survival of patients .
6.The effect of enteral nutrition on the patients suffered from esophageal rupture
Jian CUI ; Yinan LIU ; Dazhong LIU ; Kai ZHANG ; Qiang CHI
Parenteral & Enteral Nutrition 1997;0(02):-
Objective: Enteral nutrition was used to correct the malnutrition in the patients suffered from esophageal rupture postoperatively. Methods: The naso intestinal tube was placed during operation and the enteral nutrition was used postoperatively. The albumin, prealbumin and transferrin were measured before and day1, 5, 8 and 12 after operation. Results: All 27 patients were discharged with no death. Albumin, prealbumin and transferrin decreased on the 1st day postoperatively and reached the preoperative level on the fifth postoperativeday. Conclusion: Enteral nutrition plays an important role in the postoperative treatment for esophageal rupture.
7.Development of a performance indicator evaluation system for the Healthcare Improvement Initiative
Ge BAI ; Jiechun GAO ; Yuanli LIU ; Yinan ZHOU ; Li LUO
Chinese Journal of Hospital Administration 2016;32(6):410-414
Objective To develop a set of indicators for measuring the performance of China's Healthcare Improvement Initiative.Methods Such methods as literature review,expert consultation and onsite preliminary experiment were used,to study and demonstrate the indicators,the evaluation framework,the weight,evaluation indicators,and evaluation standards.Results The final evaluation indicators for medical institutions included nine class-1 indicators,29 class-2 indicators,and 56 class-3 indicators;those for healthcare administrations included six class-1 indicators,nine class-2 indicators,and 13 class-3 indicators.Conclusions The system takes into full account the special nature of healthcare,and mission of the Initiative,as the well as the quality,safety,efficiency and equity of healthcare,to make the system scientific and operational.
8.Effect and mechanism of transcription factor Foxp3 on proliferation and cell cycle of human lung adenocarcinoma cell A549
Yaqing LIU ; Bo ZHAO ; Yadong LUO ; Yinan LI ; Wei YANG
Chinese Journal of Immunology 2016;32(4):490-494
Objective:To investigate the effect and mechanism of transcription factor Foxp 3 on the proliferation and cell cycle of human lung adenocarcinoma cell line A 549.Methods:We knocked down the expression of Foxp 3 using siRNA.Foxp3 inhibition was detected by RT-PCR.Cell proliferation was detected by MTT.Cell cycle of A549 cells were detected by flow cytometry after the transfection of siRNA.Cell cycle-related checkpoint genes were filtered by RT-PCR.The regulation of Foxp3 on cell cycle-related checkpoint genes were detected by immunofluorescence and dual -luciferase reporter assay system.Results: The proliferation of A549 cells were inhibited after silencing Foxp3,and A549 cells were arrested in G0/G1 cycle.G1/S cycle checkpoint gene CCND1 was down regulated.Mechanism research show that Foxp 3 can regulate the expression of CCND 1 directly.Conclusion: Foxp3 can promote the proliferation of A549 cell line by up regulating G 1/S cycle checkpoint gene CCND 1.This provides a new target for the therapeutic targets of lung adenocarcinoma.
9.The relationship between IL-1β,intercellular adhesion molecule in serum and diabetic renal microangiopathy
Hongying WU ; Jiansheng JIN ; Jing LIU ; Yinan LI
Chinese Journal of Postgraduates of Medicine 2008;31(34):7-10
Objective To study the influence of interleukin(IL)-1β,intercellular adhesion molecule(ICAM)on diahetic renal microangiopathy.Methods Sixty-two patients with type 2 diabetic mellitus were divided into three groups:normal albumin urine group(20 patients),microamount albumin urine group(22 patients),and dominancy albumin urine group(20 patients)according to their urinary albumin excretion rate(UAER).IL-1β,ICAM was measured by enzyme-linkedimmuno sorbent assay(ELISA)method in the type 2 diabetic mellitus and the healthy persons.Results The concentration of IL-1β,ICAM in the three groups with type 2 diabetic mellitus was higher than that of the twenty healthy persons(P<0.05),higher in the dominancy albumin urine group than that in the microamount albumin urine and normal albumin urine groups(P<0.01).The concentration of IL-1β in the microamount albumin urine group was higher than that in the normal albumin urine group(P<0.05),the concentration of ICAM in the microamount albumin urine and normal albumin urine groups was equal(P>0.05).Higher serum IL-1β and ICAM was associated with higher UAER(P<0.05).The concentrations of IL-1βwas positively correlated with ICAM.Conclusion ICAM,IL-1β is probably correlated to UAER of diabetic renal microangiopathy,80 it has very important meaning and clinic value to measure the concentration of IL-1β,ICAM in serum earlier.
10.Expression and correlation of eIF4E and c-myc in laryngeal carcinoma
Bo TENG ; Kehui LIU ; Chunshun JIN ; Ding XIN ; Yinan XIA
Chinese Journal of Immunology 2000;0(08):-
Objective:To observe the expression and correlation of eIF4E and c-myc in laryngeal squamous cell carcinoma.Methods:Western blot was applied to examine the expression of eIF4E and c-myc on tumor core,transition core and tumor-free core from 36 laryngeal carcinoma patients.The results were statistically analyzed.Results:The overexpression of eIF4E and c-myc protein levels suggests an increasing tendency from tumor-free core,transition core and tumor core;and shows an significant correlation of eIF4E and c-myc expression.Conclusion:The overexpression of eIF4E and c-myc cause the laryngeal carcinoma cell malignant transformation;the correlation of eIF4E and c-myc may provide a basis for gene therapy of laryngeal carcinoma.