2.Prediction of esophageal varices in patients with liver cirrhosis
Sheng ZHENG ; Yubo WANG ; Hai LIU
Chinese Journal of Postgraduates of Medicine 2008;31(28):29-32
Objective To study whether clinical variables could be used to predict the presence of esophageal varices(EV). Methods One hundred and twenty-six patients with decompensated liver cirrhosis were enrolled. Upper endoscopy was performed to identify the EV. The spleen vein (SV), portal vein(PV), spleen index(SI), ascites was determined by ultrasenography. Platelct count(Pt), prothrombin time(PT) and liver function was determined. Results Ninety-five patients with EV, and 42 patients with severe EV. Patients with EV had significant larger SI and lower Pt. Pt and SI were predictive factors for the presence of EV. When SI≥66.9 cm2 and Pt≤89.0×109/L, they had a positive predictive value of 97.4% and 96.5%, and a negative predictive value of 55.4% and 59.8%, respectively. SI was the only predictive factor for the presence of severe EV. When SI≥82.6 cm2, it had a positive and negative predictive value of 89.2% and 75.4%. Conclusions Pt and SI are predictive factors for the presence of EV. SI is the only predictive factor for the presence of severe EV. Non-invasive factors SI and Pt can be used to predict the EV in patients with decompensated liver cirrhosis.
3.The evaluation value of the concentration of serum cholinesterase combined with acute physiology and chronic health evaluation Ⅲ in predicting the condition and prognosis of patients with severe acute pancreatitis
Sheng ZHENG ; Jinhui YANG ; Liying YOU ; Yingmei TANG ; Hai LIU
Chinese Journal of Postgraduates of Medicine 2012;35(19):36-39
ObJective To explore the value of acute physiology and chronic health evaluation Ⅲ(APACHE Ⅲ ) score and the concentration of serum cholinesterase (ChE) in predicting the condition and prognosis of patients with severe acute pancreatitis (SAP) within 24 hours afar hospitalization.Methods Sixty-two SAP patients were enrolled and APACHE Ⅲ score was assessed and the concentration of serum ChE was detected within 24 hours after hospitalization.The correlation between the concentration of serum ChE,APACHE Ⅲ score and the condition and prognosis was analyzed.Results There were 44 survivalcases and 18 dead cases.The APACHE Ⅲ score of the surval patients was significantly lower than that of the dead patients [(52.16 ± 13.76) scores vs.(97.10 ± 15.85) scores] (P<0.01).The concentration of serum ChE of survival patients was significantly higher than that of the dead patients [ (3685 ± 466) U/L vs.(2109 ± 345) U/L] (P< 0.01 ).The higher APACHE Ⅲ score was,the lower the serum ChE concentration was,and the higher the mortality rate was.APACHE Ⅲ score and the concontration of serum ChE both had statistical significances compared with the prognosis in the Logistic regression analysis (P =0.0043,0.0075);APACHE Ⅲ score (95% CI 1.0306-1.1507),the concentration of serum ChE (95% CI0.9986-1.0125 ).ROC areas under curve (AUC) of APACHE Ⅲ score,serum ChE concentration with the prognosis were 0.936 and 0.882,respectively.There was no significant difference (P=0.0820).In combined prediction of APACHE Ⅲ score and serum ChE concentration,AUC was 0.952,and its predicting accuracy was higher than either APACHE Ⅲ score or serum ChE concentration (P=0.0016,0.0027).Conclusions APACHE Ⅲ score and the concentration of serum ChE both are significantly correlated with the condition and prognosis of SAP patients.Their combined detection can significantly improve the accuracy of prognosis judgement and provide some clinical guidances for treatment.
4.Study on Refolding Ways of Recombinant pro-Carboxypeptidase B
Xiao-Yan ZHANG ; Hai-Feng LIU ; Qin-Sheng YUAN ;
Microbiology 1992;0(02):-
dialysis.
5.Modification,Expression and Purification of Human Endotoxin Binding Peptide Gene
Ya-Li SUN ; You-Sheng LIU ; Hai-Jie YANG ;
China Biotechnology 2006;0(03):-
Objective: To modify EBP(endotoxin binding peptide), clone and express the mutate of EBP gene and gain purified mEBP.Method: mEBPgene was cloned by PCR site-directed mutagenesis. PinpointXa-3/mEBP expression vector was designed to express human mEBP as a fusion protein in BL21 (DE3) pLysS. Digested engineering bacteria by lysozyme and collected inclusion bodies.Fusion protein was purified by Pinpoint TM Xa purification system and cleaved by factorXa,mEBP was purified by RP-HPLC. Results: Mutations at residues 5 and 18(Gln→Lys) was obtained by PCR site-directed mutagenesis, expressed and purified mEBP successfully.Conclusions: Obtaining of purified mEBP lay a foundation for its biological activity research.
6.The Research on Expression and Purification of a Chimeric Anti-p185 Antibody
Jing-Juan QIAO ; Hai-Bo LIU ; Juan-Juan ZHU ; Lian-Sheng CHENG ; Jing LIU ;
China Biotechnology 2006;0(09):-
The Her-2 proto-oncogene encodes a 185kDa transmenbrane glycoprotein p185 which has intrinsic tyrosine kinase activity. It is overexpressed in several malignant human tumors like breast cancer. A chimeric antibody by assembling a single-chain Fv antibody and a human IgG1 Fc fragment was constructed. This chimeric antibody reacts with tumor surface antigen p185c-erbB-2 specifically. In order to put the antibody into clinical application, two steps purification method was used to attain the antibody’s purity more than 95%. Both the lyophilized pharmaceutical formulations of the antibody were found. The formulations can keep the stability and activity of the antibody for at least one year. These results were the foundation of the chimeric antibody for cancer therapy.
7.Technological parameter optimization method for washing of coarse bear gall powder extracts based on NIR spectroscopy.
Wen-Long LI ; Shao-Yong LIU ; Dong-Sheng XUE ; Zhi-Wei CHENG ; Hai-Bin QU
China Journal of Chinese Materia Medica 2014;39(1):75-79
During the washing process of coarse bear gall powder extracts, it is necessary to adjust the amount of ethyl acetate according to the properties of raw materials, which aims to improving the yield and purity of the final product. In the research, using NIR spectra to reflect the comprehensive properties of coarse bear gall powder extracts, the process is optimized in a flexible way. Forty batches experiments are designed according to the weight ratio of ethyl acetate and coarse extracts of bear gall powder. The NIR spectra of the coarse extracts of bear gall powder are collected and processed using principal component analysis (PCA) method. The first 8 principal components combined with the amount of the ethyl acetate are used as the input variables, and calibration models are established to predict the yield and purity of the final product 30 batches are used as calibration set, which is used to establish the models, and other 10 batches are used as validation set, which is used for the performance appraisal of the established models. The correlation coefficients of the calibration, inner cross-validation and external validation for the purity model are 0.902, 0.896 and 0.883, respectively, and the RMSEC, RMSECV and RMSEP are 1.22%, 1.48% and 1.59%, respectively. The correlation coefficients of the calibration, inner cross-validation and external validation for the yield model are 0.921, 0.859 and 0.916, respectively, and the RMSEC, RMSECV and RMSEP are 1.39%, 1.65% and 1.53% respectively. This work demonstrated that NIR spectra combined with technology parameter could be used to predict the yield and purity of the final product. Using the established models, the most appropriate amount of the ethyl acetate can be determined according to the properties of the coarse bear gall powder extracts, and the yield and purity of the final product can be improved.
Acetates
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chemistry
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Animals
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Gallbladder
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chemistry
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Medicine, Chinese Traditional
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Powders
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chemistry
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Principal Component Analysis
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methods
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Spectroscopy, Near-Infrared
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methods
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Ursidae
8.Reasearch on evolution and transition of processing method of fuzi in ancient and modern times.
Chan-Chan LIU ; Ming-En CHENG ; Hai-Yan DUAN ; Hua-Sheng PENG
China Journal of Chinese Materia Medica 2014;39(7):1339-1344
Fuzi is a medicine used for rescuing from collapse by restoring yang as well as a famous toxic traditional Chinese medicine. In order to ensure the efficacy and safe medication, Fuzi has mostly been applied after being processed. There have been different Fuzi processing methods recorded by doctors of previous generations. Besides, there have also been differences in Fuzi processing methods recorded in modern pharmacopeia and ancient medical books. In this study, the authors traced back to medical books between the Han Dynasty and the period of Republic of China, and summarized Fuzi processing methods collected in ancient and modern literatures. According to the results, Fuzi processing methods and using methods have changed along with the evolution of dynasties, with differences in ancient and modern processing methods. Before the Tang Dynasty, Fuzi had been mostly processed and soaked. From Tang to Ming Dynasties, Fuzi had been mostly processed, soaked and stir-fried. During the Qing Dynasty, Fuzi had been mostly soaked and boiled. In the modem times, Fuzi is mostly processed by being boiled and soaked. Before the Tang Dynasty, a whole piece of Fuzi herbs or their fragments had been applied in medicines; Whereas their fragments are primarily used in the modern times. Because different processing methods have great impacts on the toxicity of Fuzi, it is suggested to study Fuzi processing methods.
Chemistry, Pharmaceutical
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history
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methods
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China
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Drugs, Chinese Herbal
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chemistry
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History, 15th Century
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History, 16th Century
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History, 17th Century
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History, 18th Century
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History, 19th Century
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History, Ancient
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History, Medieval
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Humans
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Medicine, Chinese Traditional
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history
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methods
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Plant Extracts
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chemistry
9.NIRS-based total quality control system construction of Tanreqing injection and relative thinking.
Wen-Long LI ; Shao-Yong LIU ; Dong-Sheng XUE ; Hai-Bin QU
China Journal of Chinese Materia Medica 2014;39(17):3409-3412
In this paper, NIRS (near infrared spectroscopy)-based total quality control system for the Tanreqing injection was introduced briefly. By analyzing and summing up the significance and difficulties, several important problems of the practical applications which need urgent solutions are proposed. And also the applicationprospect of NIRS is fully discussed and put forward in the end.
Drug Compounding
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standards
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Drugs, Chinese Herbal
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administration & dosage
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analysis
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standards
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Injections
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Quality Control
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Reproducibility of Results
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Spectroscopy, Near-Infrared
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methods
10.Salvia Miltiorrhiza reduces plasma levels of asymmetric ADMA in patients with non-ST elevation myocardial infarction undergoing percutaneous coronary intervention.
Hong-Chen ZHANG ; Wei LIU ; Hai-Tao YUAN ; Yuan-Sheng TANG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(12):1436-1439
OBJECTIVETo study changes of plasma ADMA levels of patients with non-ST elevation myocardial infarction (NSTEMI) undergoing percutaneous coronary intervention (PCI) and to explore the effect of Salvia Miltiorrhiza (SM) on them.
METHODSTotally 52 patients with confirmed NSTEMI undergoing PCI were randomly assigned to the SM treated group and the control group, 26 in each group. Patients in the SM treated group received the conventional therapy plus SM (1 g each time, three times per day till one month after PCI). Those in the control group only received the conventional therapy. Plasma ADMA levels were measured before PCI, and at day 1 and 30 after PCI.
RESULTSPlasma ADMA levels in both group obviously decreased at day 30 after PCI with statistical difference (P < 0.01). The decrement was more obviously seen in the SM treated group, with statistical difference when compared with the control group (P < 0.01).
CONCLUSIONSPatients with NSTEMI undergoing PCI could have plasma ADMA levels decreased. Administration of SM just before PCI might be associated with negative regulating plasma ADMA levels.
Arginine ; analogs & derivatives ; blood ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Myocardial Infarction ; metabolism ; Percutaneous Coronary Intervention ; Salvia miltiorrhiza