Objective: To analyze the volatile oil from the branches of Picrasma quassioides. Methods: Volatile oil was extracted from the branches of P. quassioides by steam distillation. GC-MS method was used to analyze the components. Results: A total of 49 compounds were isolated, and 46 compounds were successfully identified, which represented over 98% of the total oil composition. The major components of the volatile oil in the branches of P. quassioides included caryophyllene (12.83%), 12-oxabicyclo[9.1.0]dodeca-3,7-diene,1,5,5,8-tetramethyl-[1R-(1. R*,3. E,7. E,11-R*)] (12.29%), 1-hexanol (9.96%), naphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a-dimethyl-7-(1-methyletheyl)-[1. S-(1a,7a,8aa)] (7.32%), aromadendrene oxide-(2) (6.69%), and α-caryophyllene (3.88%). Conclusion: The major components in volatile oil are terpenoids, hydroxy compounds, and other acyclic alkane compounds. © 2013 Tianjin Press of Chinese Herbal Medicines.

Objective: Cistanche Herba was studied to explain the differences of the material basis before and after wine-fried processing, and to approach the scientific connotation for wine-fried Cistanches Herba with the functions of warming and tonifying kidney-Yang and avoiding side effects of slippery bowel diarrhea. Methods: The chemical analysis of crude and processed Cistanche Herba was performed by ultra-performance liquid chromatography method (UPLC) coupled with quadrupole time of flight mass spectrometry (Q-TOF/MS). The principal component analysis (PCA) and orthogonal partial least squared discriminant analysis (OPLS-DA) were used to distinguish the content variation between crude and processed Cistanche Herba. Results: The material basis for increased efficacy of wine-fried Cistanche Herba was studied for the first time. The contents of echinacoside, acteoside, β-sitosterol, daucosterol, sucrose, and inosine increased. Especially, the contents of echinacoside and acteoside increased significantly. The contents of 8-epiloganic acid, succinic acid, and geniposide decreased in the wine-fried Cistanche Herba. The most obvious chemical markers, such as echinacoside, acteoside, cistanoside A, and geniposide, could be used as index components to distinguish the crude and processed Cistanche Herba. Conclusion: The study is important for the processing principle of the processed Cistanche Herba and provides an important scientific basis for clarifying the effective material basis and avoiding the side effects of the wine-fried Cistanche Herba.

The study aimed to establish a population pharmacokinetic/pharmacodynamic (PPK/PD) model of warfarin. PCR-RFLP technique was used to genotype the CYP2C9 and VKORC1 polymorphisms of 73 patients. RP-HPLC-UV method was used to determine the 190 plasma concentrations of warfarin. Application of NONMEM, the clinical information and 263 international normalized ratio (INR) monitoring data were used to investigate the effect of genetic, physiological, pathological factors, other medication on clearance and anticoagulant response. The final model of warfarin PPK/PD was described as follows: CL = θCL · (WT/60)θWT · θCYP · eηCL (if CYP2C9*1/*1, θCYP = 1; if *1/*3, θCYP = 0.708); EC50 = θEC50 · θVKOR · eηEC50 (if VKORC1- 1639AA, θVKOR = 1; if GA, θVKOR = 2.01; V = θV; K(E0) = θK(E0); Emax = θEmax; E0 = θE0 · eηE0. Among them, the body weight (WT), CYP2C9 and VKORC1 genotype had conspicuous effect on warfarin PK/PD parameters. The goodness diagnosis, Bootstrap, NPDE verification showed that the final model was stable, effective and predictable. It may provide a reference for opitimizing the dose regimen of warfarin.
Anticoagulants ; pharmacology ; Body Weight ; Cytochrome P-450 CYP2C9 ; genetics ; Genotype ; Humans ; International Normalized Ratio ; Nonlinear Dynamics ; Polymorphism, Genetic ; Vitamin K Epoxide Reductases ; genetics ; Warfarin ; pharmacokinetics

The study aimed to establish a population pharmacokinetic/pharmacodynamic (PPK/PD) model of warfarin. PCR-RFLP technique was used to genotype the CYP2C9 and VKORC1 polymorphisms of 73 patients. RP-HPLC-UV method was used to determine the 190 plasma concentrations of warfarin. Application of NONMEM, the clinical information and 263 international normalized ratio (INR) monitoring data were used to investigate the effect of genetic, physiological, pathological factors, other medication on clearance and anticoagulant response. The final model of warfarin PPK/PD was described as follows: CL = θCL · (WT/60)θWT · θCYP · eηCL (if CYP2C9*1/*1, θCYP = 1; if *1/*3, θCYP = 0.708); EC50 = θEC50 · θVKOR · eηEC50 (if VKORC1- 1639AA, θVKOR = 1; if GA, θVKOR = 2.01; V = θV; K(E0) = θK(E0); Emax = θEmax; E0 = θE0 · eηE0. Among them, the body weight (WT), CYP2C9 and VKORC1 genotype had conspicuous effect on warfarin PK/PD parameters. The goodness diagnosis, Bootstrap, NPDE verification showed that the final model was stable, effective and predictable. It may provide a reference for opitimizing the dose regimen of warfarin.

This paper reviewed the emergence process of the subject and methodology of Chinese Medicines' Authentication. Based on the research progress and major achievements acquired in research of each methodology including identification of origin, description, microscopic, physical, chemical and biological characteristics of Chinese medicines, it is expounded that the development process of each methodology combined modem digital technology, information science and its own characteristics. And the development direction is further described for methodology of Chinese Medicines' Authentication towards systematization and informationization.
Chemistry, Pharmaceutical ; history ; methods ; Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; chemistry ; history ; pharmacology ; History, 20th Century ; History, 21st Century ; Quality Control

The main objective of this research is to investigate the effects of astragaloside IV, calycosin separately glucoside, formononetin on oxidative stress in Chang Liver cells induced by H2O2. In the experiments, Chang Liver cells (a kind of normal human hepatocytes) were used as the research object, bifendate which has a clear hepatoprotective effect was used as the positive control drug, then the oxidative damage model of Chang Liver cells were established by H2O2. Cells were divided into six groups: blank control group, oxidative stress group, astragaloside IV group, calycosin separately glucoside group, formononetin group and positive control group. Then endogenous antioxidant system related indexes were detected by micro plate and colorimetric method; intracellular reactive oxygen species (ROS) were detected by DCFH-DA fluorescent probe; and the expressions of CYP2E1 were evaluated by liver microsomes, mRNA, and protein, respectively with spectrophotometry, Real-time PCR method, and Western blot technique. Results showed that H2O2 decreased antioxidant activity, and increased ROS level and expression of CYP2E1. The above oxidative stress status had been changed with protections of the three components of Astragalus membranaceus (compared with oxidative stress group, P < 0.05, P < 0.01), which taken as a whole had equivalent effects as the drug of positive control group( bifendate). Taken together, three Astragalus membranaceus ingredients all had significant or extremely significant inhibiting effects on oxidative damaged Chang Liver cells which were induced by H2O2, and the oxidative damage of Chang Liver cells had been relieved.
Astragalus membranaceus ; chemistry ; Cells, Cultured ; Cytochrome P-450 CYP2E1 ; metabolism ; Humans ; Isoflavones ; pharmacology ; Liver ; drug effects ; Oxidative Stress ; drug effects ; Reactive Oxygen Species ; metabolism ; Saponins ; pharmacology ; Triterpenes ; pharmacology

Objective To systematically evaluate the safety and effectiveness of combined portal vein resection and reconstruction in the resection of hilar cholangiocarcinoma.Methods Literatures were researched using Cochrane Library,PubMed,Embase,China Biology Medicine disc,China National Knowledge Infrastructure,Wanfang database,VIP database from January 31,2006 to January 31,2016 with the key words including “hilar cholangiocarcinoma”“Klatskin tumor”“Bile duct neoplasm”“Vascular resection”“portal vein resection”“肝门部胆管癌”“血管切除”“门静脉切除”.The clinical studies of resection of hilar cholangiocarcinoma with portal vein resection and construction and without vascular resection and construction were received and enrolled.Two reviewers independently screened literatures,extracted data and assessed the risk of bias.Patients who underwent resection of hilar cholangiocarcinoma combined with portal vein resection and reconstruction were allocated into the portal vein resection group and patients who didn't undergo vascular resection were allocated into the no vascular resection group.Analysis indicators included (1) results of literature retrieval;(2) results of Meta-analysis:① incidence of postoperative complications (hepatic failure,biliary fistula,intra-abdominal hemorrhage),② postoperative mortality,③ patients' prognosis,④ related indicators of postoperative pathology (lymph node metastasis rate,moderate-and low-differentiated rate,nerve invasion rate,negative rate of resection margin).The heterogeneity of the studies was analyzed using the I2 test.The hazard ratio (HR) and 95％ confidence interval (CI) were used for assessing the prognostic indicators.The incidence of complications,mortality and pathological indicators were evaluated by the odds ratio (OR) and 95％ CI.Results (1) Results of literature retrieval:13 retrospective studies were eurolled in the meta-analysis,and the total sample size was 1 668 cases including 437 in the portal vein resection group and 1 231 in the no vascular resection group.(2) Results of Meta-analysis:① incidence of postoperative complications was respectively 39.86％ in the portal vein resection group and 35.27％ in the no vascular resection group,with no statistically significant difference between the 2 groups (OR =1.12,95％ CI:0.82-1.53,P ＞0.05).The results of subgroup analysis showed that hepatic failure,biliary fistula and intra-abdominal hemorrhage were postoperative main complications,and the incidences were 17.09％,8.79％,6.25％ in the portal vein resection group and 10.62％,9.69％,2.51％ in the no vascular resection group,respectively,with no statistically significant difference between the 2 groups (OR =0.48,1.13,0.82,95％ CI:0.23-1.02,0.45-2.83,0.21-3.12,P ＞ 0.05).② Postoperative mortality was respectively 5.38％ in the portal vein resection group and 3.88％ in the no vascular resection group,with no statistically significant difference between the 2 groups (OR =1.16,95％ CI:0.62-2.14,P ＞ 0.05).③ There was statistically significant difference in patients' prognosis between the 2 groups (HR =1.81,95％ CI:1.52-2.16,P ＜ 0.05).④ The related indicators of postoperative pathology:lymph node metastasis rate,moderate-and low-differentiated rate and negative rate of resection margin were 41.55％,76.42％,63.74％ in the portal vein resection group and 33.42％,66.75％,64.29％ in the no vascular resection group,respectively,with no statistically significant difference between the 2 groups (OR =1.45,1.59,0.67,95％ CI:0.95-2.21,0.97-2.61,0.37-1.20,P ＞ 0.05).The nerve invasion rate was 83.47％ in the portal vein resection group and 64.90％ in the no vascular resection group,with a statistically significant difference between the 2 groups (OR =2.61,95 ％ CI:1.45-4.70,P ＜ 0.05).Conclusion Combined portal vein resection and reconstruction is safe and feasible in the treatment of hilar cholangiocarcinoma,and the prognosis of patients with portal vein invasion is worse than that without portal vein invasion.

Objective To explore the relationship between serum levels of leptin and the physieal development and the infuences of diseases on the levels of leptin in prematurities.Methods To collect the clinical data as well as weights,lengths of 40 sick premature infants(sick group)and 30 premature infants without sick diseases(control group)and to test the serum levels of leptin using radioimmunoassay(RIA)at 1d,7d and 12d of life,and to analyze the differences of serum levels of leptin and weights,lengths and body mass index(BMI)between two groups.Results In both groups the BMI and the serum levels of leptin were decreased at d7 of life and reincreased at d12 of life(P＜0.01),and the serum leptin levels were corresponding to the changes of the physical development of premature infants at ld,7d and 12d of life(P＜0.01).The serum leptin levels were lower in sick group compared with control group at 7d and 12d of life(P＜0.05).Conclusion It suggested that there was positive correlation between serum leptin level and the physieal development in prematurities and diseases had negative influences to the leptin levels.

Objective To analyze the pathogen distribution and drug resistance in the patients with urinary system infection in our hospital so as to provide the basis for prevention and treatment of urinary system infection .Methods 259 strains of pathogenic bacteria cultured and isolated from the midstream urine were performed the bacteriologic identification and the drug susceptibility testing ,Escherichia coli and Klebsiella pneumoniae were performed the extend‐spectrum β‐lactamase (ESBLs) producing testing . Results Among 259 strains of bacteria ,187 strains 72 .2% (187/259) were Gram negative stains ,43 strains 16 .6% (43/259) were Gram positive stains and 29 strains 11 .20% (29/259) were fungi .Gram negative stains were dominated by Escherichia coli (139 strains) and Klebsiella pneumoniae (22 strains) .The detection rates of ESBLs‐producing Escherichia Coli and Klebsiella pneumoni‐ae were 55 .4% (77/139) and 45 .4% (10/22) .The drug susceptibility testing results showed that Gram negative stains were sus‐ceptible to both imipenem and meropenem (100% ) and Gram positive stains were susceptible to vancomycin ,teicoplanin and linezol‐id (100% ) .Conclusion Gram negative bacilli are the main infectious pathogens in urinary tract infection and Escherichia coli is the most common pathogen .No vancomycin‐resistant Gram positive cocci is found .Rationally selecting antibacterial drugs according to the drug susceptibility testing results has great significance in the therapy of urinary tract infection and the control of drug‐resistant bacterial strains .

Objective To investigate the effect of continuous quality improvement on venous transfusion exosmosis in elderly patients.Methods Through the investigation into venous transfusion exosmosis in 160 elderly patients,the causes for exosmosis were identified,followed by regulating and enforcing improvement measures and assessing the effect.Results The incidence of venous transfusion exosmosis in elderly patients was reduced from 6.40%to 2.57%and the satisfaction of patients improved from 90.00%to 97.50%.Conclusion The continuous quality improvement may effectively reduce the incidence of venous transfusion exosmosis and improve patients’satisfaction.