Objective To establish the method of thin layer identification of Phellodendri Chinensis Cortex and solid phase extraction - high performance liquid chromatography (SPE-HPLC) determination of the content of phellodendrine in Leshu Lotion. Methods Thin layer chromatography (TLC) was used for qualitative identification of Phellodendri Chinensis Cortex in Leshu Lotion and the Bond Elutplexa PCX strong cation-exchange solid phase was used for extraction small column purification. Platisil-NH2 column was as chromatographic column; column temperature was 30 ℃; triethylamine pH 3.82 (phosphoric acid), tetrahydrofuran, acetonitrile was 18:12:70, isocratic elution; flow rate was 1.0 mL/min; detection wavelength was 286 nm. Results TLC could obviously identify active ingredients of phellodendrine in Phellodendri Chinensis Cortex. The phellodendrine had good linear relationship between concentration and peak area within the scope of 1.22–12.2 μg (r=0.9999); the average recovery rate of phellodendrine was 101.18%, RSD was 1.71%. Conclusion This method is simple to operate, with accuracy and repeatability, and can be used for quality control of Leshu Lotion.

Objective To analyze the distribution and antimicrobial resistance of pathogens from patients with hospital infection in intensive care unit(ICU),and to discuss the corresponding strategy of prevention and treatment. Methods Clinical data of 891 patients hospitalized in the ICU of our hospital between Jan 2002 and Dec 2005 were collected.All the specimens were analyzed for pathogen distribution and resistance to antibiotics. Results Of all the isolated 1 155 strains,Gram-negative(G-)bacteria were the most popular pathogen(57.84%),whereas Gram-positive(G+) bacteria and fungi accounted for 21.39% and 20.78%,respectively.Most G-bacteria were less sensitive to imipenem(0-10.16%),and Pseudomonas aeruginosa was least sesitive to amikacin(6.89%) and cefoperazone-sulbactam(33.97%).G+ bacteria were most sensitive to vancomycin.Most fungus were Candida albicans(42.92%) and yeast species(22.90%). Conclusion Epidemiological investigation of pathogens in ICU is of great importance to the rational use of anti-biotics and may help to reduce the emergence of resistant strains.

Prednisolone-induced zebrafish osteoporosis model was used to explore the bone-strengthening effect of Jie-Gu-Tang (JGT). Zebrafish larvae of 5 days post fertilization (d.p.f.) were co-exposed with 25 μmol·L-1 pred-nisolone and a series of JGT solutions with a range of concentrations (0.025, 0.25, 2.5, 25 and 100 mg crude herb per liter). The 25 μmol·L-1 prednisolone was selected as the model group. Etidronate disodium (15 and 30 mg·mL-1) with 25 μmol·L-1 prednisolone was used as the positive group. And 0.5% DMSO was used as the vehicle control group. All groups were incubated in 24-well plates (28.5℃) until 10 d.p.f. Zebrafish skeleton at 10 d.p.f. was anes-thetized and fixed for staining with alizarin red. Quantitative analysis of the stained area was performed by microscop-ic inspection and digital imaging methods to reflect the amount of zebrafish head skeleton mineralization. The results showed that prednisolone group at 25 μmol·L-1 concentration can obviously decrease the staining area and the stain-ing optical density values when compared with the vehicle control group (0.5% DMSO). Compared with the model group, both etidronate disodium (15 and 30 mg·mL-1) and JGT (2.5, 25 and 100 mg crude herb per liter) can in-crease the mineralized matrix and integrated optical density (IOD) of zebrafish head skeleton significantly with dose-effect relationship. It was concluded that zebrafish osteoporosis model was successfully used in the evaluation on bone loss prevention and bone formation promotion of JGT, which provided basis for the reliability and reasonability of zebrafish model.

Objective To analyze regional left ventricular systolic function before and after percutaneous translumial coronary angioplasty(PTCA),quantitative tissue velocity imaging(QTVI)was used tO detect wall motion of left ventricule.Methods 20 patients with isolated left anterior descending coronary artery(LAD)stenosis(≥70%)and 16 normal control subjects were included in this study.QTVI was performed one day before PTCA+stent,a week and a month after successful PTCA+stent.Peak systolic myocardial velocity(Vs)were measured with QTVI at different wall segments(basal and medial segments).Results Before PTCA+stent,Vs of all segments assigned by LAD were significantly lower than those of corresponding segments in normal subjects(P＜0.01).After PTCA+stent,the above segments showed a significant improvement of Vs in a week and a month(P＜0.01).Conclusion QTVI can quantitively detect changes of myocardiac motion and real-time quantify regional left ventricular systolic function before and after PTCA.

Objective To investigate the changes of clinical and laboratory manifestations of rheumatic fever (RF) in recent ten years by reviewing the medical data of 315 patients with RF. Methods Three hundred and fifteen in-patients and out-patients with RF during 1985-1995 (group A) and 1997-2007(group B) were selected. Their manifestations were compared. Results Male/female ratio was about 1:2. Carditis and polyarthritis were common manifestations. Compared with group A, the rate of low-grade fever and carditis increased and the rate of heart failure, positive rate of C reaction protein and antistreptolysin O decreased in group B. In group B, 61.4% patients fulfilled the updated Jones diagnostic criteria. 76.2% fulfilled the 2002-2003 WHO criteria. The sensitivity and specificity of peripheral blood lymphocyte procoagulant activity (PCA) for the diagnosis of rheumatic carditis was 79.1% and 71.4% respectively. That of the anti-streptococcal group A polysaccharide (ASP) antibodies was 70.3% and 70% respectively. Five to ten years follow-up clinical data were available for 35 cases since Dec. 1997. The recurrent rate of RF was 62.8%. Only 1/3 cases received regular secondary prevention. Recurrence rate of patients with regular secondary prevention was significantly lower than that of patients without regular secondary prevention. Conclusion Mild earditis has been increasing during last ten years. PCA and ASP are valuable tests for diagnosing rheumatic carditis. More emphasis should be paid to atypical cases, early diagnosis and regular secondary prevention in order to improve prognosis.

Objective To investigate the effect of sevoflurane intravenous inhalational anesthesia and remifentanil intravenous anesthesia for single lung ventilation in the department of thoracic surgery operation .Methods 80 patients using thoracic surgery were randomly divided into the two groups with 40 cases in each group according to the number table methods ,the study group were treated with sevoflurane inhalation anesthesia while the control group were treated with remifentanil intravenous anesthesia .HR,MAP and SBP of the two groups before induction of anes-thesia(T0),1min before intubation(T1),10min after ventilation(T2),30min after ventilation(T3) and 1min before extubation(T4) were compared,and recovery time,extubation time,directional force the recovery time were recorded of the two group.Results The HR in the two groups at T1,T2,T3,T4 time did not change significantly than T0 time, while MAP decreased significantly than T0 time,with significant difference (t =8.12,7.82,8.14,8.05,all P <0.05),and there was no statistically significant difference between the two groups (P >0.05);The SBP in the study group did not change obviously at each time while the SBP in the control group at T 1 decreased significantly than T0 time,while it increased significantly at T 2 time than T1 time,with a significant difference ( t=10.51,5.34, 5.05,5.06,all P<0.05);The patients in study group were elevated blood pressure during anesthesia or decreased more than 30% occurred in 8 cases while the control group occurred in 24 cases,there was significant differences between the two groups (χ2 =13.33,P<0.05);The postoperative recovery time ,extubation time and orientation recovery time of the study group patients were (11.4 ±5.1)min,(13.4 ±6.8)min,(18.9 ±5.8)min,which were significantly lower than (19.5 ±5.2)min,(26.5 ±7.6)min,(21.9 ±7.8)min of the control group(t=5.34,6.12, 6.15,all P<0.05).Conclusion Sevoflurane intravenous inhalational anesthesia has a better anesthetic effect for single lung ventilation in the department of thoracic surgery operation than remifentanil intravenous anesthesia ,and it can effectively maintain hemodynamics stability .

Objective To establish a microbial limit test for levofloxacin hydrochloride gel. Methods Ca2+ was added to neutralize the antibacterial activity of quinolone,and to form the insoluble precipitate by binding with carbomer, therefore destroying the stability of macromolecules in the gel. The microbial limit test for levofloxacin hydrochloride gel was confirmed combining with membrane filtration and plate methods. Results The normal plate counting was used in detecting the mold and yeast colony in the gel, the recovery was more than 70%.Simultaneously neutralization centrifugation and membrane filtration were used in bacterial count,with recovery less than 70%,and controlling bacteria test. Conclusion The method is accurate and practical for microbial limit test of levofloxacin hydrochloride gel, but is risky for bacterial counting and needs further risk assessment.

Objective To investigate effects of inhalation of sevoflurane at different time on pulmonary function and oxidative stress in patients with one lung ventilation.Methods 80 patients who needed external surgery according to the random grouping principle,were divided into sevoflurane preconditioning group(OLV for 30min after inhalation of sevoflurane),sevoflurane treatment group(OLV inhalation of sevoflurane),sevoflurane inhalation group(inhalation of sevoflurane),total intravenous group(propofol and remifentanil anesthesia) four groups,20 patients in each group,each group was treated accordingly.The differences of serum malondialdehyde(MDA),superoxide dismutase(SOD),lactate dehydrogenase(LDH) and intrapulmonary shunt(Qs/Qt) in the four groups were observed and compared at different time points.Results Compared with the other three groups,the intrapulmonary shunt fraction of the sevoflurane preconditioning group were significantly lower[(4.9±0.6)% vs.(6.1±0.5)%,(6.3±0.6)%,(5.9±0.4)%](x2=5.415,5,882,4.977,all P<0.05).The serum levels of MDA,SOD,LDH in the sevoflurane pretreatment group were significantly lower than those in the other three groups[(5.06±2.10)nmol/mL vs.(13.04±3.27)nmol/mL,(12.40±4.28)nmol/mL,(13.13±2.30)nmol/ml],[(58.7±5.9)U/L vs.(84.9±13.8)U/L,(93.9±21.1)U/L,(84.2±11.2)U/L],[(16.3±2.1)U/L vs.(43.1±7.2)U/L,(45.4±6.7)U/L,(35.8±5.1)U/L](t=8.076,7.448,8.277;12.917,15.506,12.586;11.375,12.239,8.220,all P<0.05).Conclusion Thoracic surgery in patients with one lung ventilation during anesthesia,using sevoflurane preconditioning anesthesia surgery can effectively improve the patients with intrapulmonary shunt rate,reduce the level of oxidative stress and improve the prognosis,it is worthy of further clinical application.

Objective To determine the urine parameters,body temperature and main organ coefficient of Fujian rabbits.Methods In this experiment,we selected twenty healthy Fujian rabbits with weight of about 2.5kg.Both male and female rabbits were ten.Before experiment,the rabbits drunk water freely.We collected fresh urine before breeding in the morning,and then determined the ten items urine parameters soon.Under the room temperature,we used electricity thermometer into the rabbits' rectum to determine the body temperature.Being fasting for 12h,the rabbits were anesthetized by 3% pentobarbital sodium,and then were put to death after bloodletting.The dissection took various internal organs immediately.The clean organs were weighed by electronic analytical balance.Results The results showed that the majority of the urine was yellow opacity,and the ten items urine parameters between male and female had no significant difference.The average body temperature of Fujian rabbits was 39.67℃ above other ones.There was no significant difference in main organ coefficient between male and female expect the lung and spleen.Conclusion In a word,it was objective to determine the body temperature,urine parameters,mainly organ coefficient of Fujian rabbits which were fed in conventional environment.It is valuable for the appliation of Fujian rabbits in life science sphere.

Objective To investigate the incidence and related risk factors of female stress urinary incontinence(SUI) in a county of Chengdu. Methods The women were interviewed with questionnaires,which were designed to the modified standard of the Advisory Committee of Urinary Incontinence of Asia-pacific Region. Results The total number of the women investigated was 563,while the number of the valid questionnaires was 512,with the efficient rate 98.5%.Of these women,46.1%(236/512) had urinary incontinence,21.9%(112/512) had simplex SUI,4.7%(24/512) had simplex urgent urinary incontinence and 19.5%(100/512) had complex urinary incontinence.The incidence of SUI(simplex SUI plus complex urinary incontinence) was 41.4%(212/512).The incidence of SUI was associated with factors such as age,pregnancies,drinking and education level,and the severity was associated with age,body mass index and education level.Conclusion The incidence of SUI in this county of Chengdu is relatively higher.Heath education is very important for the female health.