Objective: To construct a lentiviral vector of RNA interference(RNAi) of TGF-?1 gene. Methods: Three target sequences were selected according to TGF?1 mRNA sequence firstly,then three pairs of oligonucleotide sequences according to these target sequences and one pair of negative control oligonucleotide sequence were designed and synthesized. The annealed oligonucleotide fragments were subcloned into pRNA-U6/Lenti plasmid. After identified by restriction enzyme digestion and sequencing ,these plasmids were cotransfected along with ViraPowerTM Lentiviral Packaging Mix into 293FT cells for the package of lentiviral particles. Then the lentiviral vector particles were transfected into Hela cells and TGF-?1 expression in the transfected cells was assayed by Real-Time PCR and ELISA. Results: It was confirmed by digestion and sequencing that lentiviral vectors had the correct structure and could express high titer of virus. After transfected into Hela cells,TGF-?1 expression was decreased significantly by two of these lentiviral vectors at both the protein and mRNA level and the first vector had the best interefence efficiency. Conclusion: The lentivirus RNAi vector of TGF-?1 was constructed successfully.

Intervention measures of a nursing student with hepatitis B carrier and situational mental disorder are reported,including inducing emotional release,helping nursing students appropriately recognize and deal with diseases,and searching effective social and family support.Related issues are also reflected on these interventions,such as to implement in-time mental nursing,stress hepatitis B related health education,deal with the conflict and balance between right of privacy and informed consent,and widespread related laws.

Objective To explore the application value of blood lipid,blood glucose,liver function and serum uric acid in the diagnosis of fatty liver in elderly patients.Methods A total of 62 elderly patients with fatty liver in our hospital from April 2016 to October 2016 were selected as study group,and 62 healthy persons were selected as control group.All the subjects were drawn fasting venous blood 4 mL.Rate method was used to detected liver function indexes of total bile acid(TBA),gamma glutamyltranspeptidase(GGT) and aspartate aminotransferase(AST),alanine aminotransferase(ALT),total bilirubin(TBIL) levels.The hexokinase method was used to detected blood lipid indexes,including very low density lipoprotein cholesterol(VLDL-C),low density lipoprotein cholesterol(LDL-C),high density lipoprotein cholesterol(HDL-C),cholesterol(TC),triglyceride(TG) levels.The peroxidase colorimetric method was used to detected blood glucose index including glycated hemoglobin(HbA1c) and fasting blood glucose(FBG) levels.MINDRAY BS-400 automatic biochemical analyzer produced in Shenzhen MINDRAY company was used to detect the serum uric acid level.Value of blood lipid,blood glucose,liver function,serum uric acid in diagnosis for fatty liver were made statistical comparison.Results The levels of TBA,GGT,AST,ALT and TBIL in the study group were higher than those in the control group,the level of VLDL-C,LDL-C,TG,TC in the study group were higher than those in the control group,the HDL-C level was lower than that in the control group,the levels of FBG and HbA1c in the study group were higher than those in the control group,the level of serum uric acid in the study group[(447.12±91.03)μmol/L] was higher than that in the control group [(353.41±70.32)μmol/L],the differences were all had statistically significant(P<0.05).The sensitivity(80.65%,79.03%,82.26%,77.42%) and accuracy(90.32%,88.71%,90.32%,88.71%) of blood lipids,blood glucose,liver function,blood uric acid alone in diagnosis of fatty liver were lower than the combined diagnosis(95.16%,96.77%),the differences were statistically significant(P<0.05).Conclusion Fatty liver patients have abnormal blood lipids and blood glucose,liver function and blood uric acid level,combined with the above indexes for diagnosis can improve the sensitivity and accuracy of fatty liver,and provide guidance for the intervention,is worthy of promotion.

Humans ; Leukemia ; Neoplastic Stem Cells

Acute Disease ; Adult ; China ; Humans ; Leukemia, Myeloid ; therapy

Aged ; Aged, 80 and over ; Humans ; Leukemia, Myeloid, Acute

Even though chemistry is now in place that potentially allows high coupling efficiencies to be attained, successful coupling is usually a challenge when so-called "difficult sequences" is encountered in peptide synthesis. Some factors that affect the coupling efficiency have been discussed and related methods to overcome those obstacles have been introduced in present review. All suggestions proposed here are valuable and also feasible to improve the coupling completeness in both liquid-phase or solid-phase peptide synthesis.

The article introduced the recent progress of tissue-engineered trachea.The problems encountered in the field and the study direction in the future are also mentioned.

Objective To explore the feasibility and value of ultrasonography during choledocholithotomy with fibroptic choledochoscope. Methods Fifty-one cases of intrahepatic bile duct stones after cholecystomsy as diagnosed by pre-operative examination with ultrasound, CT, magnetic resonance imaging from Jan. 2007 to Dec. 2008, underwent conventional lithotomy through fibroptic choledochoscope first, and then high-frequency probing with ultrasonography was done directly over the surface of liver to detect the existence of any residual stone in the bile duct. The position of residual stone, if there was any, was then accurately determined and removed through fibroptic choledochoscope under the guidance of ultrasonography. Results Of 51 patients who had undergone lithotomy through fibroptic choledochoscope, 12 patients were found to have residual stones in their bile ducts after operation. The rate of complete calculus removal was 76.5%, and of residual stones was 23.5%. Of the 12 patients with residual stones, 7 patients were found to have residual stones in their intrahepatic bile ducts complicated with deformed bile duct, 5 patients were found to have residual stones in their intrahepatic bile ducts complicated with stricture of bile duct. All residual stones in intrahepatic bile ducts of 12 patients were accurately located and then completely removed under the guidance of operative ultrasonography through fibroptic choedochoscope without any complications. Conclusions The difficulties of residual stones after lithotomy may be overcome by localization with ultrasonography and removal under the guidance of atfrasonography, so the technique is of practical value in clinical application.

Objective To evaluate the feasibility and value of percutaneous transhepatic multiple biliary drainage introduced under ultrasound guidance in treatment of advanced portal cholangiocarcinoma. Methods Thirty-two patients were accurately diagnosed as advanced portal cholangio carcinoma according to preoperational examination of ultrasound,enhanced computed tomography,nuclear magnetic resonance or endoscopic retrograde cholangiopancreatography (ERCP) in the hospital from Jan. 2006 to Dec. 2008. After making a reasonable therapeutic plan,3 or 4 drainage-tubes were successfully inserted in intrahepatic bile duct in turn using Seldinger technique under ultrasound guidance. Thus,retained bile was effectively drained from intrahepatic bile ducts. The changes in jaundice index after treatment and complications were observed,follow-up was performed during the patients' surviving period,and therapeutic effect was evaluated comprehensively. Results Of the 32 patients drained through multiple bile drainage-tubes,19 received 3 draining tubes simultaneously,and 13 with 4 bile drainage-tubes,with a total of 109 bile drainage-tubes inserted into all the patients. Bile drainage-tubes were inserted into all target bile ducts successfully in a 100% successful rate. 4-8 weeks after operation,the jaundice disappeared completely in 28 cases and decreased significantly in 4 cases. For all the cases,complication occurred in only 2 patients,and it disappeared after symptomatic treatment. The shortest survival time was 4 months,and the longest was for 15 months after operation. Conclusions For those patients with advanced portal cholangiocarcinoma,and the tumor could not be surgically resected,percutaneous transhepatic multiple biliary drainage is correct option,which is effective and safe,and it was valuable in relieving malignant obstructive jaundice.