1.Clinical efficacy of splenectomy combined with coronary-caval shunt in treatment of portal hypertension
Chinese Journal of Digestive Surgery 2016;15(7):668-673
Objective To investigate the clinical efficacy of splenectomy combined with coronary-caval shunt in treatment of portal hypertension (PHT).Methods The retrospective descriptive study was conducted.The clinical data of 21 patients with PHT who underwent splenectomy combined with coronary-caval shunt at the First Affiliated Hospital of Xi'an Jiaotong University from January 2001 to December 2015 were collected.Observation indicators included (1) operation situations,changes of pre-and post-operative portal hemodynamics including operation time and volume of intraoperative blood loss,diameter and blood flow velocity of portal vein (PV),gastric coronary vein and superior mesenteric vein (SMV).(2) Clinical indexes in perioperative period (before operation,at postoperative 1 week and 1 month):① blood routine test:the counts of red blood cell (RBC),white blood cell (WBC) and platelet (PLT),② liver function:Child-Pugh score,alanine transaminase (ALT),total bilirubin (TBil),albumin (Alb),extended time of prothrombin time (PT) and international normalized ratio (INR).(3) Follow-up:postoperative 1-,3-,5-year complications [upper gastrointestinal re-bleeding,peritoneal effusion,hepatic encephalopathy,hepatic failure,portal vein thrombosis (PVT) and anastomotic stoma thrombosis].The follow-up using outpatient examination and telephone interview was regularly conducted once every 3 months within postoperative 1 year and once every 6 months after postoperative 1 year up to March 2016 or end of follow-up (death).Measurement data with normal distribution were presented as x ± s.The comparison of different time-point was analyzed by the repeated measures ANOVA and Student t test.Measurement data with sknewed distribution were presented as M (range).Results (1) Operation situations and changes of pre-and post-operative portal hemodynamics:21 patients underwent successful splenectomy combined with coronary-caval shunt,including 19 receiving splenic vein bypass combined with anastomosis of gastric coronary vein and inferior vena cava and 2 receiving anastomosis of gastric coronary vein and inferior vena cava.Operation time,volume of intraoperative blood loss were (187 ± 33)minutes and (233 ± 114)mL.Diameter and blood flow velocity of PV,gastric coronary vein and SMV were (1.39±0.20)cm,(0.66±0.15)cm,(0.74±0.32)cm,(11.2±3.4)cm/s,(6.6± 1.3)cm/s,(7.0 ±2.2)cm/s before operation and (1.36 ±0.22)cm,(0.42 ±0.11)cm,(0.81 ±0.23)cm,(10.4 ± 2.5) cm/s,(8.2 ± 2.5) cm/s,(6.9 ± 2.4) cm/s after operation,respectively,showing no statistically significant difference in the diameter and blood flow velocity of PV and SMV before and after operation (t =0.46,-0.81,0.87,0.14,P > 0.05)and with statistically significant differences in the diameter and blood flow velocity of gastric coronary vein before and after operation (t =5.9 1,-2.60,P < 0.05).(2) Clinical indexes in perioperative period:① routine blood test:the counts of RBC,WBC and PLT were (2.70 ± 0.50) × 1012/L,(2.6 ±2.3) × 109/L,(55 ±28) × 109/L before operation and (3.10 ±0.60) × 1012/L,(2.8 ±2.0) × 109/L,(248 ± 182) × 109/L at postoperative 1 week and (3.70 ±0.20) × 1012/L,(6.2 ± 1.9) × 109/L,(457 ± 184) × 109/L at postoperative 1 month,respectively,with statistically significant differences (F =31.91,11.03,30.74,P < 0.05).There were statistically significant differences in the counts of RBC and PLT between 1 week postoperatively and before operation (t =-2.35,-4.81,P < 0.05) and between 1 month postoperatively and 1 week postoperatively (t =-4.35,-5.65,-3.71,P < 0.05).② Liver function:Child-Pugh score,ALT,TBil,Alb,extended time of PT and INR were 6.3 ± 1.2,(23 ± 17) U/L,(28 ± 18) μmol/L,(31.1 ± 6.8) g/L,(4.8 ±2.1) s,1.40 ± 0.20 before operation and 6.2 ± 0.9,(44 ± 24) U/L,(26 ± 11) μmol/L,(35.0 ± 7.4) g/L,(3.4 ± 2.0) s,1.30 ± 0.20 at postoperative 1 week and 6.0 ± 0.6,(36 ± 22) U/L,(23 ± 8) μmol/L,(34.2 ± 2.2) g/L,(3.7 ± 3.0) s,1.50 ± 0.30 at postoperative 1 month,respectively,showing no statistically significant difference (F =1.97,2.60,1.18,1.45,P >0.05).There were statistically significant differences in the ALT and extended time of PT (F =7.97,4.37,P < 0.05) and in the ALT and extended time of PT between 1 week postoperatively and before operation (t =3.23,2.21,P < 0.05).(3) Follow-up:21 patients were followed up for 3-168 months with a median time of 37 months.During follow-up,3 patients were dead.One,1,2 patients were complicated with upper gastrointestinal re-bleeding at postoperative 1,3,5 years and received hemostatic therapy under endoscopy,and then 2 were dead.Three,2 and 2 patients had peritoneal effusion and were improved by symptomatic treatment.One patient had hepatic encephalopathy and hepatic failure at postoperative 5 years and was dead after conservative treatment.PVT and anastomotic stoma thrombosis at postoperative 1,3,5 years were detected in 2,2,1 and 2,1,1 patients,with anticoagulant therapy,and 1 patient received vascular recanalization.Conclusion Coronary-caval shunt is a highly selective portosystemic shunt,it can significantly down regulate the regional pressure while ensure the normal blood flow of liver and decrease the rate of rebleeding,hepatic encephalopathy and thrombosis,meanwhile,it might be a potential therapy in management of PHT.
2. Salvia miltiorrhiza bge. f. alba up-regulates Bcl-2 and inhibits apoptosis of human umbilical vein endothelial cells
Academic Journal of Second Military Medical University 2010;31(11):1211-1214
Objective To study the influence of Salvia miltiorrhiza bge. f. alba(SMA) on apoptosis and Bcl-2 expression in human umbilical vein endothelial cell (HUVEC) in vitro. Methods HUVECs were isolated using perfusion and enzyme digestion methods, and the obtained cells were identified by morphological observation and VIII = Ag immunoreactivity examination. The cells in the exponential phase of growth were treated with H2O2 and different concentrations of SM A (high dose, 0.10 g/ml, low dose, 0.01 g/ml). The cell apoptosis was determined by flow cytometric analysis and Bcl-2 expression was examined by immunofluorescence mehtod. Results SMA significantly decreased the H2O2-induced apoptosis of HUVECs (P<0.01 in high dose group and P<0.05 in low dose group), and significantly increased the expression of Bcl-2 in high dose group(P<0.01). Conclusion SMA can inhibit H2O2-induced apoptosis of HUVEC, which might be associated with the increase of Bcl-2 expression. Salvia miltiorrhiza bge. f. alba; umbilical veins; endothelial cell; apoptosis; bcl-2 genes.
3.Risk factors survey and preventive measures analysis of grenade throwing fractures during the military training in recruits
Kai WANG ; Qi CHANG ; Huanle LI
Medical Journal of Chinese People's Liberation Army 2017;42(2):167-171
Objective To analyze risk factors for grenade throwing fractures and put forward corresponding preventive measures for the fractures during the military training in recruits,so as to reduce the happen in the military training.Methods The research is case-control study.The trial group and the control group (39 patients each) were followed up and investigated.The investigation indicators included height,body mass index (BMI),whether drinking carbonated beverage frequently,literacy,osteoporosis,throwing training score,throwing posture,warm-up sufficiently,region,whether attend often physical exercise before recruitment,exercise strength,and weather factor.Results There were significant differences in the warm-up sufficiency,attending physical exercise before recruitment,exercise intensity,throwing posture,weather factor between trial group and the control group in recruits.The logistic regression analysis showed that the lack of physical exercise before recruitment,strong exercise intensity,nonstandard throwing posture were the risk factors in grenade throwing fractures in recruits.Conclusion Sufficient warm-up,avoiding exhausted exercise and assault exercise,strict training in accordance with the standard throwing posture,regular participation in physical exercise before recruitment and training in warm season are effective methods for preventing grenade throwing fractures in recruits.
4.Control Nosocomial Infection by Standardized Packaging
Kai GUO ; Yuxia SUN ; Baiyu CHANG
Chinese Journal of Nosocomiology 2006;0(02):-
OBJECTIVE To reduce the incidence of nosocomial infection by standardized packaging material and model. METHODS The packaging material and model were selected according to the different sterilizations.And the qualfication rate of sterilization and warranty period of standardized instruments were detected regularly. RESULTS The quality of sterilizations was effectively guaranteed by conducting control measures. CONCLUSIONS The nosocomial infection rate is effectively prevented by standardized packaging material and model.
5.DETECTION OF FLAMMULIN WITH IMMUNOBLOT
Kai-Song ZHOU ; Peng LV ; Jiu-Gang XUE ; Han-Xing ZHANG ; Chang CHEN ; Chang-Kai ZHANG ;
Microbiology 1992;0(01):-
Flammulin, an anti-tumor protein, was purified from the aqueous extract of basidiomes of Flammulina Velutipes. Purified flammulin emulsified with Freund's adjuvant was injected subcutaneously into New Zealand white rabbits. After several immune enhancements, these animals were bled and sera were separated. Antiserum against flammulin in Western blots were applied to determine if flammulin be present in the liquid state culture or fruiting body. The result showed that anti-flammulin serum could recognize the aqueous extract of fruiting body in SDS-PAGE gels under the reducing conditions, no flammulin was detected in mycelia of Flammulina Velutipes.
8.Forty-five cases of irritable bowel syndrome (diarrhea type) treated by mouth acupuncture.
Shu-kai HAN ; Hong-chang ZHANG
Chinese Acupuncture & Moxibustion 2011;31(6):508-508
Acupuncture Therapy
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Adolescent
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Adult
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Diarrhea
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therapy
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Female
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Humans
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Irritable Bowel Syndrome
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therapy
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Male
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Middle Aged
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Mouth
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Young Adult
9.Comparison of the short-term efficacies of laparoscopic adjustable gastric banding and laparoscopic sleeve gastrectomy in the treatment of obesity combined with type 2 diabetes mellitus
Xin WANG ; Xusheng CHANG ; Kai YIN ; Guangzuan ZHUO ; Chengzhu ZHENG
Chinese Journal of Digestive Surgery 2014;13(7):545-550
Objective To compare the short-term efficacies of laparoscopic adjustable gastric banding (LAGB) and laparoscopic sleeve gastrectomy (LSG) in the treatment of obesity and type 2 diabetes mellitus,and to investigate the relationship between the body weight loss and the decrease of glucose of the 2 treatment methods.Methods The clinical data of 40 patients with obesity combined with type 2 diabetes mellitus who were admitted to the Changhai Hospital of the Second Military Medical University from January 2010 to December 2011 were retrospectively analyzed.There were 14 patients treated by LAGB (LAGB group) and 26 by LSG (LSG group).The body weight loss and the decrease of glucose at postoperative year 1 of the 2 groups were compared.The differences in the body weight and glucose before and after operation within groups were compared using the paired t test,and the differences in the body weight and glucose between the 2 groups were compared using the multiple analysis of variance.The correlation between the body weight loss and the decrease of glucose was analyzed using the linear regression analysis.Results Laparoscopic surgery was successfully done without conversion to open surgery or intraoperative complications.The operation time and volume of blood loss were (69 ± 16)minutes and (31 ± 14)mL in the LAGB group,(120 ± 15) minutes and (148 ± 48) mL in the LSG group.Complications including postoperative malnutrition,electrolyte disturbance,delayed gastric emptying,bleeding,anastomotic leakage did not occurr in the 2 groups.Two patients were complicated with abdominal incision fat liquefaction,and were cured by symptomatic treatment.(1) The body weight,body mass index (BMI) and waistline had a decrease trend.The body weight,BMI and waistline in the LAGB group were decreased from (117 ± 28)kg,(40 ± 8)kg/m2 and (118 ± 15) cm before operation to (94 ± 28) kg,(33 ± 8) kg/m2 and (92 ± 15) cm at postoperative week 48.The body weight,BMI and waistline in the LSG group were decreased from (119 ± 25)kg,(42 ± 6)kg/m2 and (123 ± 14)cm before operation to (74± 16)kg,(26± 4)kg/m2 and (86 ± 13)cm at postoperative week 48.The EWL had an increase trend in the 2 groups.The EWL in the LAGB group was increased from 7% ± 2% at postoperative week 1 to 53%± 24% at postoperative week 48,and the EWL in the LSG group was increased from 11% ± 4% at postoperative week 1 to 90% ± 20% at postoperative week 48.There were significant differences in the changes of body weight,BMI,waistline and EWL between the 2 groups (F =60.660,74.490,57.650,90.020,P < 0.05).(2) The levels of glycosylated hemoglobin,fasting glucose,fasting insulin,HOMA-IR,triglyceride,total cholesterol,low-density lipoprotein and high density lipoprotein in the LAGB group were decreased from 8.1%± 0.8%,(8.4±0.6)mmol/L,(21±8)μmol/L,7.9 ±2.9,(1.68±0.50)mmol/L,(6.0±1.1)mmol/L (4.1 ± 0.8) mmol/L,(1.09 ±0.15)mmol/L to 6.4% ±0.8%,(6.3 ±0.3) mmol/L,(10 ± 3) μmol/L,2.7 ±0.9,(1.04 ± 0.09) mmol/L,(4.3 ± 0.8) mmol/L,(2.3 ± 0.4) mmol/L,(1.22 ± 0.09) mmol/L at postoperative week 48 ; the levels of glycosylated hemoglobin,fasting glucose,fasting insulin,HOMA-IR,triglyceride,total cholesterol,low-density lipoprotein and high density lipoprotein in the LSG group were changed from 7.9% ± 1.0%,(9.0±1.0)mmol/L,(21 ±9) μ mol/L,8.5 ±3.5,(2.09 ± 0.70) mmol/L,(6.0 ± 1.2)mmol/L,(3.9 ± 1.1) mmol/L,(1.06 ± 0.21) mmol/L before operation to 5.1% ± 0.8%,(5.2 ± 0.4) mmol/L,(4 ± 1)μmol/L,0.9±0.2,(1.22±0.17)mmol/L,(4.2±0.8)mmol/L,(2.3 ±0.6)mmol/L,(1.30±0.13)mmol/L at postoperative week 48.There was a decrease trend of the glycosylated hemoglobin,fasting glucose,fasting insulin,HOMA-IR,trigluceride,total cholesterol and low density lipoprotein and a increase trend of the high density lipoprotein in the 2 groups.There were significant differences in the levels of glycosylated hemoglobin,fasting glucose,fasting insulin,HOMA-IR,triglyceride,total cholesterol,low-density lipoprotein and high density lipoprotein between the 2 groups (F =57.650,74.270,36.750,42.960,10.870,30.650,32.560,11.490,P <0.05).The levels of glucose of the LAGB group at postoperative month 1 and 3 were influenced by BMI (b =0.543,0.753,P < 0.05),while the levels of glucose of the LAGB group did not be influenced by BMI at postoperative month 6 and year 1 (b =0.130,0.222,P >0.05).The levels of glucose of the LSG group did not be influenced by BMI at postoperative month 1,3,6 and year 1 (b =0.185,0.035,0.212,0.126,P >0.05).Conclusions The efficacy of LSG is superior to LAGB for the treatment of obesity combined with type 2 diabetes mellitus.The efficacy of LAGB is correlated with the change of body weight,while the efficacy of LSG does not correlated with the change of body weight.
10.Ultrastructure of Vascularization During Osteogenesis by Tissue Engineering Technique
kai-gang, ZHANG ; bing-fang, ZENG ; chang-qing, ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(02):-
Objective To observe the changes of osteoblasts and vascularization during osteogenesis by tissue engineering technique under the electron microscope and study the feasibility of improving vascularization of the tissue engineering bone by using the small intestine submucosa(SIS) as the scaffold. Methods The bone mesenchymal stem cells(BMSCs) were isolated by using the gradient centrifuge method.BMSCs were seeded in the SIS.The scaffold-cell constructs were cultured in vitro for two weeks.There were no cells on the SIS as control.They were implanted subcutaneously in the dorsa of the athymic mice.The implants were harvested after(in vivo) incubation for 4,8 and 12 weeks.The changes of osteoblasts and vascularization were observed under the transmission electron microscope and the scanning electron microscope. Results The BMSCs grew quite well.BMSCs differentiated on the surface of the SIS and secreted a great deal of extracellular matrices.The scaffold-cell constructs formed a lot of bone and vessels in vivo.The scaffold degraded after 12 weeks.No osteoblasts but vascularization and fibroblasts were observed as control. Conclusion SIS can be used as the scaffold for constructing tissue engineering bone as it can improve the formation of bone and vessels in vivo.