1.Study on Changes of IR and Myocardial Tissues Rat Model with Congestive Heart Failure Pathology by Yi-Qi Wen-Yang and Huo-Xue Li-Shui Decoction
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(10):2157-2161
This study was aimed to investigate the effect of Yi-Qi Wen-Yang (YQWY) and Huo-Xue Li-Shui (HXLS) decoction on changes of insulin resistance (IR) model and the myocardial tissues of rats with congestive heart failure (CHF) pathology. CHF rat models were established on Wistar male rats through injection of doxorubicin hydrochlo-ride into rat tail vein. Wistar male rats models were randomly divided into the model group, western medicine group, low dose decoction group, middle dose decoction group, and high dose decoction group. After 4-week gavage, 3 mL vein blood was taken from the angular vein sinus for the determination of blood glucose and serum insulin, and the calculation of IR. Finally, the rats were sacrificed. And then, the heart was removed to make HE slice and observe the pathological change of myocardium. The results showed that compared with the model group, YQWY and HXLS decoction can improve the IR level among CHF rats (P<0.05). Among them, the effects of the high dose and middle dose group were obvious. At the same time, this decoction can improve the myocardial cells in CHF rats in myocar-dial cells of the high dose group. And its morphology change was close to the digoxin group. It was concluded that YQWY and HXLS decoction can reverse IR and improve ventricular remodeling among CHF rats to a certain extent.
2.In vitro fracture resistance of endodontically treated anterior teeth with varying ferrule heights and configurations with glass-fiber post
Yachong WANG ; Yunzhi FENG ; Mei CHEN
Journal of Practical Stomatology 2010;26(1):126-127
The extracted human maxillary central incisors were endodontically treated and restored with glass-fiber post. Then they were randomly divided into four groups and tested. Results showed that groups with ferrule more than 2 mm had higher fracture resistence than others.
3.A in vitro study of coronal microleakage of different post and cement systems
Yunzhi FENG ; Mei CHEN ; Yachong WANG
Journal of Practical Stomatology 2009;25(4):482-485
Objective: To compare the coronal sealing abilities of different post and cement systems through measuring the value of leakage by using dye method. Methods: Fifty human mandibular premolars with single canal were divided into 6 groups randomly. A group: roots sealed by temporary material, B group: roots restored with fiber post adhered with composite resin cement, C group: roots restored with casting metal post and core adhered with composite resin and zinc phosphate cement, D group: positive control, E group: negative control. After finishing preparation and restoration of roots, microleakage was determined by using dye method. Results: The groups restored with any post and core system produced significantly less microleakage than temporary material sealing group(P<0.05). But no differences were detected between two groups bonded with the composite resin cement (P>0.05). Posts adhered with zinc phosphate luting agent produced more leakage than those with composite resin cement(P<0.05). Conclusion: Luting agent can decrease the coronal microleakage. Composite resin cement provides better sealing ability.
4.Protective effect of reduced glutathione on renal mitochondria in rats with obstructive jaundice
Zhiqiang CHEN ; Yunzhi FANG ; Tao LI
Chinese Journal of Current Advances in General Surgery 1999;0(04):-
Objective: To investigate the role of oxygen free radicals in renal dysfunction of rats with obstructive jaundice and the protective effect of reduced glutathione on renal mitochondria. Methods: Fifty-four Wistar rats were randomly divided into three groups: sham-operation control group (group A), obstructive jaundice group (group B), reduced glutathione treated group (group C). The model of obstructive jaundice in rats was established by common bile duct ligation (CBDL). In group C, reduced glutathione (150mg/kg.d) was given through abdominal cavity for 21 days. The rats were executed at 7th, 14th, and 21st day after operation respectively. The contents of serum BIL, Cr, BUN and the contents of renal mitochondria MDA and cholesterol were detected respectively, and the changes of renal histopathology were observed. Results: The contents of renal mitochondria MDA and cholesterol in group B and group C were markedly higher than group A (P
5.Research in effect of nursing intervention on prevention of surgical site infection after gastrointestinal operation
Weihong LIN ; Yunzhi CHEN ; Qiqiang ZENG ; Huangjing QIAN ; Qiyu ZHANG
Chinese Journal of Practical Nursing 2009;25(9):3-5
Objecltive To intensify the coordination and nursing in the operation room in order to prevent surgical site infection after gastrointestinal operation. Methods 337 medical history of patients received gastrointestinal operation and third rate healing from 1999 to 2006 were collected. A series of intensified measures were applied to surgical site infection from 2003 gradually, including invocation of new surgical handwashing method, modified skin disinfection manner, adoption of degreasing with ethanol first before disinfection with iodophor, placement of incision protector and clean bag for incision protection after entering abdomen, changing to use new gastrointestinal anastomofic thimerosal,standardization of operation order and clean manage-ment in operation room. The incidence rate of surgical site infection after gastrointestinal operation of patients from 1999 to 2002 and from 2003 to 2006 underwent χ2 test. Results The incidence rate of surgical site in-fection after gastrointestinal operation greatly decreased after adoption of intensified nursing intervention, Signifi-cant difference existed in rate of patients with third rate healing between the year 1999 to 2002 and 2003 to 2006. Conclusions Modified nursing intervention for surgical incision after gastrointestinal operation can de-crease incision infection rate evidently.
6.The relativity analysis of carotid artery atherosclerosis and various coronary artery disease
Mingxiang WU ; Yunzhi CHEN ; Liya FANG ; Yuchun YANG
Journal of Chinese Physician 2011;(z1):4-7
Objective To determine the relationship between the aggravation of CAAS and coronary atherosclerosis (CAS) ;and to summarize the pathologic character of CAAS of the patients with various coronary artery disease. Methods Review the result of coronary angiography and carotid artery ultrasonography and the related risk factors of the patients who were diagnosed as CAD through coronary angiography ( CAG). The patients were divided into the scleratheroma group and the non scleratheroma group. The patients were divided into stable angina pectoris( AP) group, unstable angina pectoris(UAP) group and acute myocardial infarction (AMI) group according to the criterion of coronary artery disease of WHO. The patients were divided into group A (coronary artery of single vessel lession) ,group B( coronary artery of double vessel lession ) , group C( coronary artery of triple vessel lession )and group D(left main vessel lession ).The aggravation of CAAS was graded. Results There were 198 patients with various CAAS among 228 patients with coronary artery disease ( 86. 8%). CAAS was much related with hypertension and non-related with age, sex, BMI, smoking, drinking, hyperlipoidemia, hyperuricosuria and diabetes mellitus. The aggravation of CAAS much graver with much graver CAS. But only the plaque number of Group A was more than Group D( P <0. 05). The grading integral and Crouse integral of CAAS of AP group was not remarkable less than UAP group. The grading integral of CAAS of AP group was less than AMI group and the Crouse integral of AP group was more. But there was no remarkable difference. The number of all plaque,plaque and plaque of AP group was not remarkable less than UAP group and AMI group. There was the plaque among the three group. Conclusion Carotid artery atherosclerosis (CAAS) is relative to coronary artery disease ( CAD).
7.Effect of perioperative continuous use of aspirin on bleeding in laparoscopic anterior resection for rectal cancer: a prospective study
Hong ZHANG ; Yunzhi LING ; Mingming CUI ; Dingsheng LIU ; Chunsheng CHEN
Chinese Journal of Digestive Surgery 2017;16(7):725-730
Objective To explore the effect of perioperative continuous use of aspirin on bleeding in laparoscopic anterior resection for rectal cancer (RC) in patients taking low dose aspirin.Methods The prospective study was conducted.The clinicopathological data of 96 RC patients taking low dose aspirin who were admitted to the Shengjing Hospital of China Medical University from September 2014 to September 2016 were collected.All the 96 patients were divided into the aspirin group (perioperative continuous use of aspirin) and non-aspirin group (discontinuation of aspirin at 7 days preoperatively and taking aspirin at 3 days postoperatively)by random number table.Laparoscopic anterior resection for RC was applied to patients by the same team of doctors.Observation indicators:(1) comparison of surgical and postoperative situations between the 2 groups;(2) follow-up situations.Follow-up using outpatient examination and telephone interview was performed to detect the postoperative survival of patients up to January 2017.Measurement data with normal distribution were represented as (x)±s.Comparisons between groups were evaluated with the t test.Comparisons of count data were analyzed using the chi-square test and Fisher exact probability.Comparison of ordinal data was analyzed using the nonparametric test.Results All the 96 patients were enrolled into the study,including 50 in the aspirin group and 46 in the non-aspirin group.(1) Comparison of surgical and postoperative situations between the 2 groups:96patients underwent successful laparoscopic anterior resection for RC,including 1 with conversion to open surgery and 95 undergoing laparoscopic anterior resection for RC,without perioperative death,postoperative blood transfusion and rcoperation.Cases with conversion to open surgery,operation time,volume of intraoperative blood loss,decreasing value of postoperative hemoglobin (Hb),time to anal exsufflation,peritoneal drainage volume from 1-3 days postoperatively,cases with postoperative hematoehezia,cardio-cerebrovascular complications and overall complications (including postoperative hematochezia and cardio-cerebrovascular complications),duration of hospital stay,hospital expenses,cases in stage Ⅰ,Ⅱ and Ⅲ of postoperative TNM stage,postoperative coagulation indexes of platelet,prothrombin time,international normalized ratio,prothrombin activity,activated partial thromboplastin time,thrombin time and fibrinogen were 0,(112± 18) minutes,(39± 18) mL,(4.3±2.8)g/L,(57±24)hours,(22±9)mL/d,6,0,10,(8.6±2.5)days,(6 739±481)yuan,11,35,4,(236±80) × 109/L,(12.7± 1.1) seconds,1.00±0.08,101% ± 15%,(28 ±4) seconds,(15.5 ± 1.9) seconds,(3.2±1.0)g/L in the aspirin group and 1,(118±16)minutes,(38±22)mL,(3.5±3.0)g/L,(55±29)hours,(20±8)mL/d,4,1,8,(9.1±2.3)days,(6606±510)yuan,5,36,5,(211±49)×109/L,(12.5±0.7)seconds,1.00±0.06,103%±11%,(29±3)seconds,(15.3±1.7)seconds,(3.1±0.7)g/L in the non-aspirin group,respectively,with no statistically significant difference between the 2 groups (t =-1.737,0.204,1.416,0.380,1.365,x2=0.038,0.107,t=-1.082,1.322,Z=-1.370,t=1.850,0.978,0.872,-0.712,-1.291,0.311,0.585,P>0.05).Ten patients with postoperative hematochezia in the 2 groups were cured,without special treatment.One patient in the non-aspirin group was complicated with deep venous thrombosis and then was cured by single anticoagulant drug.Two and 2 patients in the aspirin group were respectively complicated with urinary retention and urinary tract infection.One,1 and 1 patients in the non-aspirin group were respectively complicated with inflammatory intestinal obstruction,urinary retention and urinary tract infection,and then were cured by conservative treatment.(2) Follow-up situations:of 96 patients,95 were followed-up for 4-27 months,with a median time of 13 months.During the follow-up,3 patients died and 92 had survival.Conclusion The perioperative continuous use of aspirin cannot increase risk of bleeding in laparoscopic anterior resection for RC in patients taking low dose aspirin.
8.THE ANALYSIS OF ANTIGENIC COMPONENTS OF LEPTOSPIRA SUBCULTURED IN COMPOUND GELATIN MEDIUM
Shaojin ZHANG ; Hong WANG ; Yunzhi ZONG ; Rongshan CHEN
Microbiology 1992;0(03):-
Four different strains of Leptospira were subcultured in CGM in contrast with in Korthof medium for three years. The antigenic components of these Leptospira grown in the two medium were analysed by the methods of MAT, CIE and SDS-PAGE. The results showed that:1, the antigenic components of Leptospira were very complex and had more than twenty bands stained with Coomassie brilIiant blue in SDS-FAGE pattern; 2. the antigenicity of Leptospira subcultured in CGM for many generations was relative stability and the same as that in Korthof medium.
9.Model of end-stage liver disease and Child-Turcotte-Pugh in prognosis for patients with massive hemorrhage from esophageal varicosis
Cunjin ZHOU ; Jianmei ZHAO ; Yunzhi SHEN ; Liangzhi WANG ; Fengsong CHEN
Chinese Journal of Digestive Endoscopy 2008;25(6):290-294
Objective To evaluate the model of end-stage liver disease (MELD) and Child-Tur-cotte-Pugh (CTP) in prognosis for cirrhotic patients with massive hemorrhage from esophageal varieosis, who underwent emergency endoscopic sclerotherapy (EIS). Methods The clinical and follow-up data of a co-hort of 65 liver cirrhotic patients with massive hemorrhage from esophageal varicosis treated by EIS were ana-lyzed retrospectively. Correlation between MELD values and CTP score and classification was analyzed. The area under the receiver operating characteristic (ROC) curve was used to compare MELD with CTP score and classification in predicting mortality risk. The optimal threshold of MELD to determine the prognostic death risk was calculated by ROC curves. Results MELD, CTP score and classification correlated signifi-cantly with each other. Seven patients died within six months and 9 died within the first year of follow-up.There was no significant difference in gender, age and serum bilirubin between the survival and death groups, while the serum creatinine, international normalized ratio (INR), CTP score, and MELD score were significantly different. The areas under the ROC curve of MELD were both greater than 0.8 to predict 6-month and 1 -year survival, and also were greater than those of CTP score and classification. Areas under the ROC curve of MELD is superior to, but not significantly different though, CTP score or classification. The optimal threshold values of MELD and CTP score both showed satisfactory predicting accuracy of mortality risk. Conclusion MELD is an accurate predictive system for 6 months and 1 year in liver cirrhotic patients with massive hemorrhage from esophageal varicosis treated by EIS. The MELD value is very important in the selection of patients for E1S. But it is not more efficient than CTP score and classification.
10.Surgical treatment of splitting right hepatic duct with hepatolithiasis and stenosis
Guodong YANG ; Yunzhi LONG ; Shaoliang NIE ; Jingjun CHEN ; Jian SUN
Chinese Journal of General Surgery 2001;0(08):-
Objective To evaluate the surgical treatment of splitting right hepatic duct with hepatolithiasis and stenosis. Methods The clinical data of 38 patients with splitting right hepatic duct and hepatolithiasis treated by operation were analyzed retrospectively. Results All the patients underwent operation. operative procedures were as follows: (1) in situ cholangioplasty of splitting right hepatic duct in 7 cases;(2) fenestration of splitting right hepatic with adjacent hepatic duct in 9 cases; (3) bilioplasty of splitting right hepatic duct with adjacent bile duct in 8 cases; (4) hepatic lobectomy or segmentectomy of splitting right hepatic duct in 14 cases. Postoperative complications developed in 6 cases, which were cured conservatively. There was no perioperative mortality. All patients were followed up for 5~16 years(averaged 9.2 years). Excellent rate was 78.9%,and residual stones were found in 26.3% of the patients . Conclusions Accurate localization and appropriate operation may get satisfactory result in treating patients with splitting right hepatic duct with hepatolithiasis and stenosis.