1.Experience in the treatment of perforating injury of the distal common bile duct during biliary exploration
Yang GAO ; Ping SUN ; Qichang ZHENG
Chinese Journal of Hepatobiliary Surgery 2014;20(7):511-513
Objective To study the results using T-tube and retroperitoneal space drainage to manage perforating injury of the distal common bile duct(PIDC) during common bile duct(CBD) exploration.Methods We retrospectively analyzed the clinical data of 12 patients who were diagnosed to suffer from PIDC during CBD exploration from 2010 to 2012.Result All these 12 patients who received T-tube and retroperitoneal space drainage,gastrointestinal decompression,nutritional support and antibiotics recovered uneventfully.Conclusion Given that the CBD was unobstructed,T-tube and retroperitoneal space drainage was an good treatment for patients with PIDC.
2.Effect of urinary kallidinogenase on cerebral infarction with different etiological factor
Wenxu ZHENG ; Ping LIU ; Lan YANG
Chinese Journal of Postgraduates of Medicine 2010;33(12):19-21
Objective To investigate the effect and safety of urinary kallidinogenase on acute cerebral infarction.Methods One hundred and sixty-four patients with acute cerebral infarction were randomly divided into two groups:treatment group with urinary kallidinogenase(86 cases)and control group (78 cases).According to Chinese guidelines for prevention and management cerebrovascular disease,two groups were treated with basic therapy,such as antiplatelet,neurologic protection,blood pressure control,and so on.On basis of control group,treatment group Was administrated intravenous injection of urinary kallidinogenase 0.15 PNA U per day for 10 days.The primary efficacy Was evaluated by the National Institutes of Health Stroke Scale(NIHSS)score and Barthel index.Results The score of NIHSS and Barthel index at 15 days after treatment in the treatment group were higher than those in the control group[(6.67±3.02)scores vs(7.42±3.02)scores;75.36±23.56 vs 68.36±22.36,P<0.05].Urinary kallidinogenase could significantly reduce neurological deficits in big artherosclerosis type by TOAST typing.Conclusion Urinary kallidinogenase may be effective and safe in the treatment of acute cerebral infarction.
3.Biological characteristics of bone marrow-derived mesenchymal stem cells cultured by density gradient centrifugation combined with adherence in adult rats
Yuxia YANG ; Jianliang ZHENG ; Ping ZHANG ; Jianxian LIN ; Wenxin ZHANG
Chinese Journal of Tissue Engineering Research 2007;11(3):583-586
BACKGROUND: It is important to study the methods of culturing bone marrow-derived mesenchymal stem cells (MSCs) to obtain a great amount of high purity MSCs for applying ocular tissues constructed by tissue engineering technique to treat eye diseases.OBJECTTVE: To separate and culture in vitro MSCs from bone marrow of the adult rats by density gradient centrifugation combined with adherence culture, and observe the growing characteristics and the possibility of mass multiplication.DESIGN: A completely randomized grouping design/repetitive measuring experiment.SETTING: Pathological laboratory, Zhongshan Ophthalmic Center, Sun Yat-sen University.MATERIALS: Four six-week-old SD rats about 250 g, grade Ⅱ of cleaning, were provided by the Animal Center of Sun Yat-sen University [certificate number: SCSK(Yue)2004/0011], about 250 g each rat and there was no limit to the sex. The main reagents and instruments included low sugar Dulbecco modified Eagle culture medium (DMEM/F12, American Gibco Corporation), trypsin (fetal bovine serum (FBS, Hangzhou Sijiqing Bio-Engineering Material Research Institute), American Gibco Corporation), disodium edetate, lymphocyte separating medium, fibronectin, CD44, CD34, CD31 monoclonal antibodies, two-step-method kit for immunohistochemistry (Beijing Zhong shan Biotechnology Corporation).METHODS: This experiment was conducted at the Key laboratory of Ophthalmology (Sun Yat-sen University), Ministry of ethanol (750 g/L) for 10 minutes. Under aseptic condition, the medullaris cavitas was exposed, the syringe containing application m edium was directly punctured into the femoral cavity, the cells in the medullaris cavitas were washed out with the culture medium containing heparin and taken as the cell suspension. The bone marrow-derived MSCs were separated and purified by density gradient centrifugation combined with adherence culture, and the growing conditions of the wells. When the cells had generally connected with each other, they were fixed with methanol or dimethy ketone in situ for 10 minutes, and then hematoxylin eosin (HE) staining or immunohistochemical staining. Antibodies against fiinoculated to 96-well culture plate by a cell density of 4.25×107/L, with 200 μL every well; then put the culture plate into culture box. Then from the next day to the sixth day, 5 g/L MTT solution was added into two rows (20 μL every well) every day, continuously cultured for 4 hours, then the supernatant was removed, and 200 μL DMSO was added to each well, agitated for 5 minutes, then detected the absorbance (A) values at 570 nm wave length, and a growth curve was drawn.branes were clear and the cell bodies were lucent. Being cultured for 2 days, there appeared adherent cells. 3 days later,most of the adherent cells extended and appeared to be in polygon, star or long-shuttle shapes. 4 days later, the cells showed to be in division growth stage; and about 12 days later, the cell clones were connected to each other, appearing curve of subcultured MSCs was in S shape. Cells began growing fast on the 2nd day after being passaged, and they entered the growth period for 3-4 days followed by saturation period, and then cells stopped growing.CONCLUSION: It is a simple and practical method to separate MSCs from the bone marrow of adult rats by means of density gradient centrifugation and adherence. MSCs can greatly proliferate in vitro and offer seed cells for the application of tissue engineering technique to treat eye diseases.
4.Association of serum proinsulin with insulin resistance,and serum proamylin with islet beta cell function
Xiaoya ZHENG ; Wei REN ; Suhua ZHANG ; Ping YANG
Journal of Third Military Medical University 1984;0(02):-
Objective To study the serum levels of proinsulin(PI),insulin(INS),proamylin(PA) and amylin(AMY) in abnormal glucose metabolism individuals and to explore the relationship between PI and insulin resistance(IR) and between PA and islet beta cell function.Methods Totally 79 subjects who received Oral glucose tolerance test(OGTT) and insulin release test in our department from March to May 2008 were divided into 4 groups according to the results of OGTT,that is,normal group,impaired glucose regulation(IGR) group,T2DM 1[fasting blood-glucose(FBG)15 mmol/L) group.All subjects underwent examination of anthropometry and serum bio-chemical indicators,HOMA-IR and HOMA-B were calculated.Results No significant difference was found in the serum levels of PI or AMY among the 4 groups,but the level of PA,PI/INS and PA/AMY among the 4 groups did have significant differences(P
5.Application of early enteral nutrition for patients with carcinoma of esophagus after operation
Yongkang YU ; Jianqing JIANG ; Yifeng ZHENG ; Lie YANG ; Ping MAO
Parenteral & Enteral Nutrition 1997;0(04):-
Objective: To review the clinical effect of early enteral nutrition in patients with carcinoma of esophagus after operation.Methods: Nutrient canal was indwelt through Fresubin(TP) was given through the nasal-intestinal tube in 120 cases with carcinoma of esophagus after operation.Results: The complications such as anastomotic leakage,lung infection and incisional infection in the patients receiving early enteral nutrition were much less than those in control group.No death occurred.The time for bowel function recovery was much shorter.Conclusion: Early enteral nutrition can promote the recovery of gastrointestinal function,improve the nutrition,decrease the occurrence of complications and raise the successful rate of operation in operative patients with esophagus carcinoma.
6.Study on experimental teaching reform of the clinical hematology and hematologic examination
Yiqing YANG ; Subing XUE ; Yanchao ZHANG ; Ping LI ; Wenzhi ZHENG
Chinese Journal of Medical Education Research 2003;0(03):-
Clinical hematology and hematologic examination is a strong practical curriculum, and experimental class is very important in the aspects of teaching.In order to improve the quality of teaching and train compound laboratory talents with high quality,several effective reform mea-sures were carried out based on the years of teaching practice by the department:improving the methods of experimental teaching;using modern means of teaching;emphasizing on the analysis of experimental results,formulating the rigorous experimental evaluation system and starting the second class etc.
7.Clinical significance of circulating tumor cells detection in small cell lung cancer patients
Chunhua LIU ; Zheng YANG ; Jing LI ; Ping GONG
The Journal of Practical Medicine 2014;(12):1906-1909
Objective To investigate the clinical significance of circulating tumor cells (CTCs) in pa-tients with small-cell lung cancer patients (SCLC). Methods 42 SCLC patients, 10 patients with benign lung disease(hospitalized from June 2012 to June 2013), and 10 healthy volunteers from the First Affiliated Hospital of Shihezi University Medical College were studied and their clinical information was collected. Negative immuno-magnetic separation method and immunocytochemistry method were applied to collect the Pan-CK +/CD45 - of CTCs, in order to analyze the relationship between CTCs and clinical manifestation. Results CTCs were found in 32 cases of SCLC group, with a positive rate of 76.19%. CTCs was not found in peripheral blood in control group. Difference in the two groups is significant (P = 0.000). The presence of CTCs was correlated positively with the patients′ PS score , clinical stage , M stage , the number of metastatic sites , NSE value and LDH value (P < 0.05). Conclusion The CTCs number is correlated with patients′ PS score, clinical stage, M stage, the number of metastatic sites, NSE value and LDH value, respectively. CTCs detection is useful for more accurate risk assessment of patients.
8.The relationship between circulating tumor cells and clinicopathologic characteristics of primary lung cancer patients
Chunhua LIU ; Zheng YANG ; Na LI ; Ping GONG
Chongqing Medicine 2014;(20):2565-2568
Objective To investigate the relationship between the presence of circulating tumor cells (CTC) and the clinicopatho-logic characteristics of primary lung cancer patients .Methods Samples of peripheral blood(7 .5 mL) from 65 cases of patients with lung cancer(lung cancer group) and 10 cases of patients with lung benign diseases and 10 healthy volunteers (control group) ,and then those CTC were enriched by negative immunomagnetic separation with anti-CD45 antibody and then dectected by immunocyto-chemistry with anti-pan-cytokeratin antibody .The relationship between the positive rate of CTC and clinicopathologic characteristics of lung cancer patients were analyzed .Results The positive rate of CTC in lung cancer patients was 69 .23% (45/65) ,while CTC was not detected in any patients with lung benign disease or healthy volunteers .The positive rate of CTC in patients at TNM stageⅠ - Ⅱ ,Ⅲ and Ⅳ was 23 .08% (3/13) ,50 .00% (6/12) and 90 .00% (36/40) ,respectively .There was significant difference in posi-tive rate of CTC between patients at different TNM stages (P= 0 .000) .The positive rate of CTC in metastatic (stage M1 ) lung cancer patients(83 .33% ,35/42) was significantly higher than that in non-metastatic(stage M0 ) lung cancer patients(43 .48% ,10/23)(P=0 .002) .With the increasing number(0 ,1 ,2 ,3) of metastatic sites ,the positive rate of CTC increased (53 .48% ,83 .33% , 87 .50% ,75 .00% ) ,and there was significant difference in different positive rates of CTC (P=0 .024) .There was statistically sig-nificant difference in the positive rate of CTC between Cyfra 21-1 normal group(53 .33% ,16/30) and high value group(92 .00% ,23/25)(P=0 .021) ,the same with LDH normal group(55 .00% ,22/40) and high value group(82 .86% ,29/35)(P=0 .004) .Conclu-sion CTC were presented in some lung cancer patients .The presence of CTC in peripheral blood is correlated positively with the patients′clinical stage ,M stage ,the number of metastatic sites ,Cyfra21-1 value and LDH value .CTC detection is useful for more accurate risk assessment of patients with lung cancer .
9.Clinical Study on Acupuncture and Ischemic Stroke
Lan LI ; Ping ZHENG ; Xin CHEN ; Yang BAI ; Min MAO
Journal of Acupuncture and Tuina Science 2009;7(3):137-139
Objective:To study the clinical efficacy of acupuncture for ischemic stroke and its effect on ET-1 levels in IS cases.Method:The 63 cases were randomized into a treatment group (31 cases),receiving acupuncture and routine method,and control group (32 cases),receiving routine method alone.Seven days constitute a course of treatment,a 2-day interval between two courses.The clinical efficacy and ET-1 level in two groups were compared after four weeks.Result:The total effective rate in the treatment group and control group were 96.8% and 75% respectively,with a statistical significance (P<0.05);the ET-1 level in blood plasma also with a statistical significance after the treatment (P<0.05);the pre-treatment and post-treatment ET-1 level in the treatment group showed a statistical significance (P<0.01),whereas the control group didn't.Conclusion:Acupuncture is effective for ischemic stroke and can lower the ET-1 level in ischemic stroke cases.
10.Exploring the new strategy of training and education for hepatobiliary robotic surgeons
Geng CHEN ; Zhanyu YANG ; Shuguo ZHENG ; Ping BIE
Chinese Journal of Medical Education Research 2012;11(4):391-393
Robotic surgery is a major trend of mini-invasive surgery,which is still in its infancy in China.The training and education of robotic surgeons is a problem to be solved imperatively.In our clinical practice,we explored the new strategy of training and education for hepatobiliary robotic surgeons by assimilating the essence of traditional surgery education and by drawing lessons from the successful training of robotic surgery in foreign countries.Satisfactory teaching effect was obtaincd.