Objective To investigate the protective effects of polysaccharide from Radix Codonopsis Lanceolatae on acute alcoholic hepatic injury in mice.Methods The model of CCl4-induced acute hepatic injury was set up in mice, and then treated with polysaccharide from Radix Codonopsis Lanceolatae to observe the activities of ALT, AST and TG in serum and the levels of SOD, GSH and MDA in hepatic tissue and Observed the pathological changes in the liver of mice.Results Compared with model control group, the lance asiabell root polysaccharide liver injury in mice all dose groups in the activity of serum ALT(97.5 ± 22.12 U/L, 108.8 ± 22.15 U/L, 125.2 ± 19.68 U/Lvs. 152.3 ± 17.32 U/L), AST (72.5 ± 21.3 U/L, 89.2 ± 17.47 U/L, 104.3 ± 19.34 U/Lvs.1215 ± 22.31 U/L) and TG(0.75 ± 0.32 mmol/L, 0.80 ± 0.22 mmol/L, 0.96 ± 0.21 mmol/L vs.1.44 ± 0.23 mmol/L) reduce, can increase the liver damage the activity of SOD(215.6 ± 22.68 U/mg, 203.2 ± 22.18 U/mg, 186.2 ± 18.34 U/mgvs.164.3 ± 17.54 U/mg), GSH(17.74 ± 2.12μmol/g, 14.84 ± 1.12μmol/g, 13.93 ± 2.15μmol/gvs.12.23 ± 2.09μmol/g) in liver tissue of mice, decrease the activity of MDA(6.22 ± 2.12 nmol/mg, 6.22 ± 2.12 nmol/mg, 8.36 ± 1.84 nmol/mgvs.9.35 ± 1.68 nmol/mg) in liver tissue, showing significant differences (P<0.05), and there was certain dose dependent, and can improve the pathological injury of liver tissue.Conclusion Polysaccharide from Radix Codonopsis Lanceolatae had protective effects on acute liver induced by acute alcoholic hepatic injury in mice.

Objective To study the content of isorhynchophylline from different regions and different harvest time.Methods The content of isorhynchophylline in Uncaria rhynchophylla from different regions and different harvest time was tested by HPLC. The Waters Symmetry C18 color (4.6 mm× 250 mm, 5 μm), mobile phase of methanol - 0.01 mol/L ammonium acetate buffer (pH 8.0) (60:40), column temperature 25℃, 20 μl sample volume, velocity of 1.0 ml/min, detection wavelength of 246 nm were setted.Results The isorhynchophylline can be detected in different regions and different harvest time, with the highest content was found in Ningming county and from September to February of the next year.Conclusion The content of isorhynchophylline in Uncaria rhynchophylla varied from different regions and harvest times. The best harvest time is during September to February of the next year.

Objective To study effect of pentanuclear copper complexes of imino acetic acid two aromatic derivatives on oxidative cutting DNA. Methods Synthesized complexes later, protonation constants and the stability constants of the complexes were determined by potentiometric titration method, the cutting DNA was studied by agarose gelelectrophoresis.Results Under physiological conditions, complexes H4L1, H4L2, between H6L3 and Cu2 +coordination capability was stronger; three carboxylic multi copper complexes in Cu2 + concentration cutting efficiency were higher than the corresponding mononuclear copper complexes, synergistic effect exists between Cu2 + Center; H6L3 complexes of the three DNA cut the highest efficiency, complex H4L1 was followed, complex H4L2 cutting efficiency was the lowest.Conclusion Change the complex chelating ligands has great influence on the properties of complex, which provides a theoretical basis for the design and synthesis of copper nucleases reasonable.

[Objective]To investigate the feasibility of screening for velamentous umbilical cord insertion in early pregnancy by ultrasound.[Methods]A total of 2,796 cases of pregnant women,2 998 cases of fetuses that underwent prenatal ultrasound screening in the early and middle stage pregnancy and delivered in Dalian Women and Children Healthcare Center were included. The results of ultrasound screening of umbilical cord insertion during early pregnancy(11~13+6 w)were divided into three groups. GroupⅠ:it is clear that the placenta of the umbilical cord is located in the fetal membranes ,and then along with the fetal membranes for a long distance,and then enter the placenta. GroupⅡ:The placenta of the umbilical cord is located at the edge of the placenta,and then insert point is not distinguished between the placenta and fetal membranes. Group Ⅲ:It is clearly shows that the umbilical cord inserted into the placenta.[Results]1. The display rate of the umbilical cord in early and mid pregnancy ultrasound examinationearly pregnancyan examination showed that the rate of 99.23%(2 975/2 998). The single child display rate of 99.77%(2 590/2 596),twindisplay rate of 95.96%(380/396),three fetal the rate of 83.33%(5/6).In the second trimester of pregnancy(22~26 w)and examination showed that the rate of 86.99%(2 608/2 998). The single child display rate of 90.99%(2 362/2 596),twin display rate of 61.61%(244/396),three fetal the rate of 33.33%(2/6). 2. The results of early pregnancy,pregnancy,the examination of after birth Regard?ing to early pregnancy,28 cases were included in GroupⅠ,42 cases in GroupⅡand 2928 cases in GroupⅢ. Regarding to second pregnancy,37 cases were evaluated as velamentous umbilical cord insertion,30 cases were evaluated as battledore placenta and 2931 cases were evaluated as normal placenta. The results of postnatal examination were as follows:36 cases were identified as velamentous umbilical cord insertion,30 cases were evaluated as battledore placenta and 2932 cases were evaluated as normal placenta. 3. Comparison of 3 groups,early pregnancy examination results and pregnancy and after the birth. In early pregnancy,28 cases of GroupⅠwere diagnosed as velamentous umbilical cord insertion in the examination during the second trimester of pregnancy and after delivery. In the 42 cases of early pregnancy in Group Ⅱ,7 cases were diagnosed as velamentous umbilical cord insertion ,22 cases were diagnosed as battledore placenta and 13 cases were normal placenta. After birth ,6 cases were diagnosed as diagnosed as velamentous umbilical cord insertion ,23 cases were battledore placenta and 13 cases were normal placenta. In the 2928 cases of early pregnancy of Group Ⅲ,2 cases were diagnosed as diagnosed as velamentous umbilical cord insertion ,8 cases were battledore placenta and 2918 cases were normal placenta. After birth ,2 cases were diagnosed as diagnosed as velamentous umbilical cord insertion,7 cases were battledore placenta and 2919 cases were normal placenta.The diagnostic accuracy of early pregnancy was 98.29%.[Conclusion]Application of HD-Flow blood flow pattern in early pregnancy can make a diagnosis of some of the sail-shaped placenta.

OBJECTIVE:To prepare Geinstein (GEN) solid dispersion,and improve the dissolution rate of GEN in vitro. METHODS:Using PVP K30,PEG6000,and PEG4000 as carriers,GEN solid dispersion was prepared by solvent melting meth-od,and its dissolution in vitro was investigated. The structure of the solid dispersion was characterized by FTIR and DSC. RE-SULTS:GEN solid dispersion prepared with PEG4000 as carrier was better than those with other carriers in dissolution,and drug-carrier ratio (1:5) was the best. The results of DSC and FTIR showed that GEN in solid dispersion took amorphous form. CONCLUSIONS:GEN solid dispersion is prepared successfully and significantly improve the dissolution of GEN in vitro.

Objective To investigate the effect of recombinant intestinal trefoil factor(rITF)on the intestinal mucosa of acute necrotizing pancreatitis(ANP)rats and explore the mechanism.Methods 60 male SD rats were randomly divided into control group(n=20),ANP group(n=20),rITF group(n=20).ANP was induced by retrograde injection of 5%sodium taurocholate(100μl/100 g)into biliopancreatic duct.Rats in rITF group were injected with rITF(0.5 mg/100 g)before and after ANP induction.The rats in ANP group and control group received same amount of normal sailne.Each group were sacrificed 12 h or 24 h later.respectively.Blood sample was taken to determine the serum level of amylase.Terminal ileum was resected to observe the pathologic changes;immunohistochemistry method was applied to detect the activity of NF-κB;the expression of TNF-α mRNA,ICAM-1 mRNA in intestinal mucosa was measured by RT-PCR.Results Intestinal injury score of ANP group was higher than that ofcontrol group(P＜0.05),intestinal injury score of ANP 12 h group was higher than that of rITF 12 h group(P＜0.05),but there was no significant difference between ANP 24 h group and rITF 24 h group.The number of positive NF-κB cells was 26±4,55±8,49±4,respectively;the relatively expression of TNF-α mRNA in terminal ileum was 0.050±0.005,1.040±0.031 and 0.792±0.0256,respectively;the relatively expression of ICAM-1 mBNA was 0.045±0.010,0.795±0.037 and 0.400±0.031,respectively,in control group,ANP group and rITF 12 h group.The corresponding values in the ANP group were significantly increased compared with those values in the control group (P＜0.05 or P＜0.01).Conclusions rITF may protect the intestinal mucosa.the mechanism may include inhibit NF-κB activation,down-regulate TiNF-α mBNA,ICAM-1 mRNA expression.

Objective To investigate the effects of preoperative iv different doses of pantoprazole on acidity of gastric fluid in patients undergoing elective surgery. Methods Sixty ASA Ⅰ -Ⅲ patients aged 38-80 yr,weighing 44-72 kg undergoing elective surgery were randomly allocated into 3 groups (n = 20 each): group Ⅰ control (group C); group Ⅱ pantoprazole 40 mg(group P1) and group Ⅲ pantoprazole 80 mg(group P2). The patients received intravenous normal saline (NS) 100 ml, pantoprazole 40 and 80 mg in NS 100 ml respectively in group C, P1 and P2 at 30 min before surgery. Gastric content was aspirated using a gastric tube on the patients'arrival in the operating room and at 1,2 h and the end of surgery. The pH of the gastric fluid was measured. The adverse effects including dizziness, diarrhea, PONV and incidence of stress ulcer were recorded. Results The pH was significantly increased in group P1 and P2 as compared with control group but there was no significant difference in pH between group P1 and P2 . There were no significant difference in the incidence of stress ulcer and pH of the gastric fluid≤2.5 among the 3 groups. Conclusion Preoperative intravenous pantoprazole 40 mg can effectively increase pH of gastric juice and is helpful in reducing the incidence of stress ulcer and the risk of acid aspiration.

OBJECTIVE: To investigate the correlation of laryngeal squamous cell carcinoma (LSCC) and precancerous lesion with HPV infection subtypes and possible clinical relationship. METHOD: Eighty-three cases in paraffin embedded tissues were detected with thirty seven HPV subtypes by flow-through hybridization and gene chip (HybriMax), including 31 cases of laryngeal squamous cell carcinoma, 52 cases of precancerous lesions (29 cases of vocal cord leukoplakia and 23 cases of laryngeal papilloma), and 36 cases of vocal cord polyp as normal vocal mucosa were used as control. RESULT: The total positive rate of HPV was 19.4% in the group of laryngeal squamous cell carcinoma (6/31), 0 in vocal cord leukoplakia, 65.2% in laryngeal papilloma (15/23), and the control group were all negative, HPV virus subtype of HPV-positive laryngeal squamous cell carcinoma were all high-risk HPV16; and there were 6 HPV virus subtypes in laryngeal papilloma (8: HPV6,4: HPV52, 1: HPV11, 1: HPV18, 2: HPV45, 3: HPV16), individual mixing two or more subtypes infection. HPV infection of laryngeal squamous cell carcinoma and precancerous lesions has no statistically significant difference according to gender, high low-risk subtypes. CONCLUSION HPV infection related to laryngeal squamous cell carcinoma and precancerous lesions, but no significant correlation with the subtype distribution of high and low risk; HPV detection is making positive sense to clinical diagnosis of laryngeal carcinoma and precancerous lesions as well as the development of specific HPV subtype vaccine.
Carcinoma, Squamous Cell ; complications ; virology ; Genotype ; Head and Neck Neoplasms ; complications ; virology ; Human papillomavirus 11 ; Humans ; Laryngeal Neoplasms ; complications ; virology ; Papilloma ; complications ; virology ; Papillomaviridae ; classification ; Papillomavirus Infections ; complications ; virology ; Precancerous Conditions ; Squamous Cell Carcinoma of Head and Neck

Objective To explore the clinical results and operation experiences for benign breast mass by ultrasound guided mammotome minimally invasive biopsy system (MMIBS). Methods 212 benign breast masses in 186 patients were resected by ultrasound guided MMIBS. Clinical data of 186 patients were retrospectively analyzed. Results Needle position in 186 patients was visualized. Lesions were completely removed in 134 cases of 186 (72%) patients. The complete resection rate for tumors on major pectoral muscle or near areola were 31.5% (6/19) and 33.3% (4/12) respectively. Identified by postoperative ultrasound, 118 out of 134 patients (88.0%) with tumor sizes 0.5 to 2.5 cm and 16 out of 38 patients (42.1% ) with sizes 2.5 to 3.0 cm were completely removed. No lesions larger than 3.0 cm were completely removed. All 52 cases in which the tumors were not completely removed by MMIBS were converted to open surgery. Ultrasound follow-up after 4 weeks showed that all the 134 cases that had had masses completely removed had no residual masses, whereas 6 months after operation, 16 out of the 112 cases proved tumor recurrent necessitating open reoperation in 6 cases and second MMIBS operation in 10 cases, among them one case recurred after six months and received open operation. Conclusions For small benign breast mass, MMIBS has therapeutic effect with significantly minimal invasion.

BACKGROUND:A lot of work has been carried out on the development of the primary cultured rat myocardial cel s at home and abroad. The primary culture technology of rat myocardial cel s becomes more mature, but myocardial cel s from neonatal mice are not easy to be obtained under the same experimental conditions. The mouse genome has more similarities with the human genome, which has a higher research value. OBJECTIVE:To improve the primary culture method of neonatal mouse myocardial cel s, and to obtain myocardial cel s with high purity, vitality and original structure and function. METHODS:The mouse cardiac tissues were treated using an enzyme digestion method to isolate isolated single myocardial cel s:first, the cardiac tissues were digested using trypsin, and then col agenous fibers were treated with col agenase to isolate single myocardial cel s. The concentration and action time of trypsin and type II col agenase were adjusted, and the pH values of reagents and temperature of each step were strictly control ed. RESULTS AND CONCLUSION:At 24 hours after inoculation, the myocardial cel s began to be adherent;at 48 hours, independent pulsation of myocardial cel s could be observed;at 72 hours, myocardial cel s were cross-linked;and at 96 hours, myocardial cel s formed cel clusters and presented with consistent beating. The survival rate and purity of myocardial cel s were both over 95%. This modified method could successful y culture myocardial cel s with high purity and viablility from neonatal mice, and the structure and function of myocardial cel s could be retained. Therefore, it is a feasible culture method.