1.The prognosis research of gerontal patients with lung squamous carcinoma in surgical therapy
Chongqing Medicine 2014;(6):650-652
Objective To explore influence factors of gerontal patients with lung squamous carcinoma after surgical therapy . Methods 210 gerontal patients with lung squamous carcinoma were accepted surgical therapy and adjuvant therapy ,and were fol-lowed up .The survival rates of 1 ,3 and 5 years after the surgery were evaluated by Kaplan-Meier ,and influence factors were ana-lyzed by Cox regression .Results The 1 ,3 and 5 years survival rates were 89 .0% ,68 .6% and 56 .2% ,respectively .The survival rates were significantly influenced by the smoking history ,the abnormal degree of mediastinal lymph node ,TNM stage ,the class number of lymph node dissection ,and the class number of mediastinal lymph node dissection(P<0 .05) .The smoking history(χ2 =16 .198 ,P=0 .000) ,the abnormal degree of mediastinal lymph node(χ2 =8 .873 ,P=0 .003) ,TNM stage(χ2 =18 .718 ,P=0 .000) , and the class number of mediastinal lymph node dissection (χ2 =4 .897 ,P=0 .027) were the influence factors of prognostic .Conclu-sion The accurate TNM staging and mediastinal lymph node with image examination could be more appropriate to operative indica-tions ,meanwhile ,if smoking was controlled ,the class number of mediastinal lymph node dissection was more .These could be bene-ficial to the survival .
2.Antileukemic mechanism of resveratrol in vitro and in mice bearing L1210-tumor.
Journal of Integrative Medicine 2008;6(12):1267-74
To elucidate the molecular mechanism of resveratrol against leukemia both in vitro and in vivo.
3.Relationship between changes in plasma GMP-140 and lipid levels in patients with acute pancreatitis and their clinical significance
Wei LI ; Xiaoyu TAN ; Xianjing WU
Chinese Journal of General Surgery 2000;0(11):-
Objective To study the clinical significance of changes of plasma GMP-140 and lipid levels in patients with acute pancreatitis.Methods GMP-140 was determined by ELISA and plasm a lipid levels were determined with an auto-biochemical analyzer in 58 patients with acute pancreatitis and in 33 healthy(individuals) as control group.Results The levels of plasma GMP-140, total cholesterol(TC),low-density lipoprotein(LDL-C) in acute pancreatitis were higher than in the that control group(P
4.Experimental study on the mouse abdominal cavity transplantation with microen-capsulated transgeneic cell
Chinese Journal of Immunology 2001;0(07):-
Objective:To explore the possibility of treatment of microencapsulated transgeneic cells on allotransplantation cells. Methods: The peritoned cavity of mice were injected with Alginate-chitosan microencapsules, which were prepared by drop generative technique and contained human fibroblastlike bone marrow stroma cells transgened by partial CEA gene. Results: The microencapsulated cells transplanted in mouse abdominal cavity could go on growing, proliferate and increase the immune reaction of T lymphocyte from mice spleen to ConA stimulation in 3 months. Conclusion :The study shows that Alginate-chitosan have good biocompatibility, strength and can be used as an immunoisola-tion tool in cell transplantation. The microencapsulated cell transplantation can help to broaden the cell source of allotransplantation and provide reliable proof for the study on treatment malignant tumor with microencapsulated transgeneic cell vaccine.
5.Therapy and research progress of pediatric epiphyseal injury
Zhiyong XIE ; Wei TAN ; Xu LI
Chinese Journal of Applied Clinical Pediatrics 2016;31(11):873-875
The epiphysis is an unique structure in pediatric skeletons,which mainly reflect in its unique blood supply,anatomical structure,pathological basis and so on.Epiphyseal injury is common in children with skeletal injury.Fracture,tumor,infection can cause epiphysis injury,and inappropriate treatment is often easy to cause growth obstacle and skeletal deformity.Its treatment is relatively difficult.At present,there had not yet formed a consistent therapeutic strategy.Aiming at the pathobiologic basis,causes,mechanism and clinical manifestation of pediatric epiphyseal injury,now,its diagnosis,therapeutic strategy,the principle of treatment and the latest research progress were summarized,which would provide useful guidance for clinical treatment of pediatric epiphysis injury.
6.Juxtaglomerular cell tumor:a clinicopathological study of 5 cases
Songmei LI ; Wei TAN ; Chaofu WANG
Chinese Journal of Clinical and Experimental Pathology 2015;(10):1123-1126
Purpose To study the clinicopathologic features of juxtaglomerular cell tumor ( JGCT) . Methods The microscopic and immunohistochemical features were examined in 5 cases of JGCT, with review of related literatures. Results Four patients were fe-males and 1 was male, average aged 39 years ( range, 26-60 years) . Four patients had hypertension at diagnosis. Postoperative serum renin and aldosterone levels decreased obviously than before the operation in one patient. In one patient tumor had metastasized to liver and bone and died 14 months after operation. Microscopically, the tumors were well circumscribed and at least partially invested by a thick fibrous capsule. Entrapped tubules were identified. Numerous hemangiopericytoma-like vessels were focally present. The tumor tissue was made up of sheets of ovoid to polygonal cells with regular nuclei, distinct cell borders, moderately abundant eosinophilic cy-toplasm. Mast cells and lymphocyte were common. Thick-walled hyalinized blood vessels were obvious. Necrosis and high mitotic ac-tivity were identified in one case. Immunohistochemically, tumor cells were positive for renin, CD34, vimentin, and SMA (focally). Conclusions JGCT is a rare renal neoplasm. Its diagnosis and differential diagnosis must be established on the clinicopathologic fea-tures, immunohistochemical findings and ultrastructural features. Malignant JGCT is very rare. Its criteria are unknown, but malignant JGCT include histological vascular invasion, a large tumor size, relatively advanced patient age or child, necrosis and/or high mitotic activity.
7.Establishment of BALB/c mice models for Graves disease
Wei ZHENG ; Jian TAN ; Ning LI
Chinese Journal of Nuclear Medicine and Molecular Imaging 2014;34(5):390-395
Objective To establish stable Graves disease (GD) mice models with immunization and electroporation (EP).Methods Fifty mice were divided into 3 groups by random number table method:experimental group (n =30),control group (n =10),blank group (n =10).Recombinant plasmid pcDNA3.1/hTSHR268 was constructed and injected to bilateral gastrocnemius in experimental group mice on the 1st,4th,7th and 10th week.The same volume of normal saline was injected in the control group and blank group at the same time.Both experimental group and control group were subjected to EP at the same time and the same location to enhance immunization.Serum T4 was tested with radioimmunoassay.TRAb N-terminal (TRAb N) and TRAb C-terminal (TRAb C) antibodies were tested with ELISA.Whole body 99TcmO4-imaging was performed and then thyroid morphology and pathology were investigated.Data were analyzed by one-way analysis of variance and the least significant difference (LSD) t test.Results GD BALB/c mice models were built successfully (80%,24/30).Serum T4 increased from (16.06±5.16) nmol/L at the basic level to(95.04±68.92) nmol/L on the 12th week(F=18.906,t=-5.598,P<0.05).Serum TRAb N antibody increased from (0.006±0.002) U/L at the basic level to (0.251±0.110) U/L on the 12th week(F=47.491,t=-10.869,P<0.05).Serum TRAb C antibody increased from (11.176±2.635)×103 arbitrary unit (AU)/L at the basic level to (46.395±22.001)× 103 AU/L on the 12th week(F=14.642,t =-7.787,P<0.05).On the 18th week serum T4,TRAb N and TRAb C decreased to (36.64±23.68) nmol/L,(0.094±0.053) U/L and (24.456±6.725)× 103 AU/L respectively,which were still higher than those preimmune levels(t=-4.161,-8.085,-9.008,all P<0.05).There were no significant change of T4,TRAb N and TRAb C in the control group and blank group.After 4 times of immunization,the 99TcmO4-uptake by thyroids in immunized mice increased.The thyroid glands of immunized mice showed enlargement.Microscope examination showed that there were lymphocytes infiltration,colloid decrease and epithelial cell proliferation in thyroids of immunized mice.Conclusion GD mice models were successfully established by injecting recombinant plasmid pcDNA3.1/hTSHR268 and EP.
8.Diagnostic value of application of salivary and plasma microRNA-21 in early esophageal cancer
Wei LI ; Conglin YAN ; Xiaogang TAN
Chongqing Medicine 2015;(14):1894-1896
Objective To study the diagnostic values of salivary and plasma microRNA‐21 for e early esophageal cancer . Methods Totally 112 patients with early esophageal cancer in Nanyang Municipal Central Hospital from February 2011 to Febru‐ary 2014 were selected as the observation group and contemporaneous 100 healthy people of physical examination were selected as the contract group .The salivary and plasma microRNA‐21 expression levels were compared between the two groups ;the diagnostic values of salivary versus plasma microRNA‐21 for the early esophageal cancer were also compared;the correlation between the miR‐NA‐21 level with the stage ,pathogenic type and differentiation of early esophageal cancer .Results The salivary microRNA‐21 level (6 .08 ± 2 .22) in the observation group and (0 .64 ± 0 .09) in the control group ,the difference had statistical significance (P<0 .05);the plasma microRNA‐21 level in the observation group was (20 .91 ± 10 .59) and (1 .69 ± 0 .17) in the constract group ,the difference had statistical significance (P<0 .05) .The area underROC curve(AUC) of salivary microRNA‐21 level was 0 .866 5 ,the sensitivity was 88 .24% ,the specificity was 69 .97% ;while AUC of plasma microRNA‐21 level was 0 .882 0 ,the sensitivity was 90 .20% ,the specificity was 70 .69% ,the differences in the diagnostic value had no statistical significance between them(P>0 .05) . The salivary and plasma microRNA‐21 levels had no obvious correlation with the stage and pathogenic type of early esophageal cancer(P>0 .05) ,while had strong correlation with the differentiation degree(P<0 .05) .Conclusion Salivary and plasma microR‐NA‐21 has higher diagnostic value in for early esophageal cancer ,and saliva may supplant plasma in the diagnosis of early esophage‐al cancer .
9.Highly Sensitive Self-assembly Magnetic Molecularly Imprinted Electrochemiluminescence Sensor for Determination of Cinchonine
Xiaoping WEI ; Yanji TAN ; Jianping LI
Chinese Journal of Analytical Chemistry 2015;(3):424-428
A molecularly imprinted electrochemiluminescence sensor for detection of cinchonine based on surface self-assembly of molecularly imprinted membrane on magnetic nanoparticles was developed. Cinchonine was used as template and lauryl mercaptan was used as assembling monomer. The morphology and particle size distribution of the magnetic nanoparticles were characterized by TEM, and the infrared spectroscopy was used to study the structure and composition of cinchonine, molecularly imprinted membrane before and after elution. The results showed that, cinchonine could be specifically assayed with a linear relationship between the signal intensity and the logarithm of concentrations of cinchonine in the range of 1×10-10 mol/L to 9×10-8 mol/L. The detection limit for cinchonine was 3. 5×10-11mol/L. The sensor was used for the determination of cinchonine in serum samples, with the recoveries of 98. 8% to 104. 7%.
10.Current status of research on the relationship between metformin and gynecological tumor
Li SUN ; Wenhua TAN ; Wei LIU
Chinese Journal of Postgraduates of Medicine 2017;40(2):187-190
Metformin, a representative of biguanides, is currently the world's first line of treatment for type 2 diabetes. A considerable number of studies have showed that it can inhibit the occurrence and development of liver cancer, pancreatic cancer, breast cancer and other malignant tumors. In the field of gynecology, over the years, with the early detection rate of gynecological tumors and the improvement of surgical methods, the research on the prognosis and control of gynecological tumor has become a hot research topic in clinical and scientific research, and has been related to the research on the relationship between metformin and gynecological tumor. This shows that metformin in the field of gynecological cancer has a very optimistic prospects and research space. In this review, we will discuss the recent progress in the study of metformin in the field of gynecologic oncology.