OBJECTIVE:To establish the quality standard of Alyxia sinensis.METHODS:The characteristic study,microscopic identification and TLC identification of Alyxia sinensis were performed,and the content of Ursolic acid in which was determined by HPLC.RESULTS:The chief characteristics of Alyxia sinensis have been summarized.The linear range of Ursolic acid was 0.053～10.600 ?g(r=0.999 9) with its average recovery at 101.45%(RSD=1.72,n=9).CONCLUSION:The established standard can be used for the quality control of Alyxia sinensis.

Objective To investigate the application of colposcope in cervical cancer screening in Yunnan ethnic minority areas.Methods The questionnaire survey was conducted on 641 women,and the data of the colposcopy and biopsy were reviewed retrospectively.The colposcopy and pathological diagnosis results were compared.Results The minority women thought colposcopy more acceptable was 78.64％ (383/487).The colposcopy found suspected low-grade cervical lesions were 377 cases,high-grade cervical lesions were 245 cases,cervical condyloma were 15 cases,cervical cancer were 4 cases.The pathological results:278 cases of cervical intraepithelial neoplasia (CIN) Ⅰ,174 cases of CIN Ⅱ,55 cases of CIN Ⅲ,15 cases of cervical condyloma,4 cases of cervical cancer.The consistent rate of colposcopy and pathological examination was 68.17％ (257/377) in low-grade lesions,89.39％ (219/245) in high-grade lesions,cervical cancer and cervical condyloma was entirely consistent.Conclusions The colposcopy is more easily accepted in Yunnan ethnic minority areas,which could be a preliminary diagnosis of cervical lesions,cervical condyloma and cervical cancer.It has an important clinical application value in diagnosis of cervical diseases.

Objective To investigate the distribution of age and relationship of ESR with HCT.Methods The HCT,age and ESR datas of the patients which all ages were above 40 years were Collected,then count the mean and standard deviation x±s with different groups of HCT,t test was made to identify the significance of difference.Results HCT:The levels of hct in males was 0.47±0.26 in higher groups of HCT,0.39±0.27 in normal groups and 30.01 ±3.59 in lower groups.The levels of HCT in fe-males was 0.42±0.17 in higher groups,0.30±0.36 in normal groups,0.27±0.45 in lower groups;Age:The average age in males was 57.41±10.62 years in higher HCT groups of patients,67.23 ±12.75 in lower hct groups,there were significantly difference between them.The avarage age in females was 60.70 ± 11.60 in higher HCT groups of patients,61.60 ± 12.40 in lower HCT groups,there were no significantly difference between them.ESR:The levels of ESR in males was (3.95 ±3.26)mm/h in higher HCT groups,(61.61±40.04)mm/h in lower HCT groups;The ESR in females was (28.26±28.62)mm/h in higher HCT groups, (60.20±43.71)mm/h in lower HCT groups,there were significantly difference between different groups included both males and femals.Conclusion When the HCT were decreased,the age and ESR were increased in males,the ESR were also increased but had no relationship with ages in females.Conjuction the age and ESR,it could improve the prevention and monitoring in heart-brain blood disease through the HCT.

Objective To study the effect of ro ta ry magnetic field on experimental myocardial ischemia caused by Pitui trin (Pit) injection in rats. MethodsThirty rats with experimental myocardial ischemia induced by intravenous injection of Pit (2U/kg) were divided into three groups: control group, ischemia g roup, rotary magnetic field group. The ST-segment elevated amplitude, T -wave amplitude of ECG, serum NO content, SOD activity and MAD content in the three groups were observed and compared. Results The 30 mT rotary magentic field for 30 min significantly increa sed SOD activity ( P

Objective To study influences of magnetic field on behavior of depressive rats under chronic unpredictable mild stress,and possible mechanisms under such phenomena.Methods Thirty-six Wistar rats were divided into model group,magnetic field group and control group (n =12 in each group) according to random number table.The model group and the magnetic field group received CUMS stimulation daily for 5 weeks,while the control group received no any treatment.At the end of the fifth week,rats in the magnetic field group were placed in the center of a magnetic machine (400 mT),and the model group was raised freely for4 weeks.The severity of depressive behaviors,cortisol levels and contents of C-reactive protein in blood and urine sample were tested pre-treatment,at the end of 5 weeks and 9 weeks.Results After 5 weeks,consumption of glucose solution of the control group was higher than the other two groups (P ＜ 0.05).After 5 and 9 weeks,body weights of the magnetic group and the model group were lower than the control group (P ＜ 0.05).At the end of 9 weeks,performance of the magnetic group as indicated by frequency of grid crossing,grooming time and suspending tail test were improved to a significantly greater extent than the other two groups (P ＜ 0.05).In addition,the urine content of cortisol in 24 hours in magnetic field and model groups was higher than the control group at the end of 5 weeks,and the serum level of cortisol in the magnetic field group were significantly higher than the model group at the end of 9 weeks (P ＜ 0.05).Conclusion The 400mT magnetic field can reduce the severity of behavior changes of rats with CUMS-induced depression,which might be attributable to its influence on the cortisol levels in blood and urine.

Objective To compare the impact of anterior and inferior-posterior regional wall motion abnormalities on the vortex in systolic phase by vector flow map(VFM) technique.Methods Sixty patients with myocardial infarction were divided into 2 groups:the left anterior descending artery single branch lesion group (LAD group) and the left circumflex artery and/or right coronary artery lesion group (LCX/RCA group).By VFM technique,left ventricular systolic blood flow field was observed.Parameters such as the vortex duration were calculated and compared between two patient groups and also with healthy control group.Results LAD group did not show significant difference from the control group in isovolumic systolic vortex,this group was characterized with large size of vortex and usually forming local vortex at the apex in early ejection.On the contrary,LCX/RCA group had small isovolumic systolic vortex,the early ejection vortex of this group was significantly smaller than that of LAD group and larger than that of control group.The phenomenon was usually observed in the center of the lumen.Both LAD and LCX/RCA group had longer total vortex duration and vortex collapse time than the healthy control group,these differences were not significant between LAD and LCX/RCA group.There were no significant differences in isovolumic vortex duration among the three groups.Conclusions Anterior wall infarction had more impact on systolic blood flow field than inferior-posterior wall infarction.The VFM technique could be applied for observation and evaluation of the changes in vortex characteristics.

Objective To evaluate the dynamic changes of left ventricular systolic blood flow hemodynamics in patients with acute myocardial infarction(AMI) before percutaneous coronary intervention (PCI) and short-term after PCI by vector flow mapping (VFM).MethodsTwenty-five patients with AMI were examined by color Doppler two-dimensional echocardiography respectively before PCI and three days and one month after PCI.The standard apical three-chamber color images in three sequent cardiac cycles were acquired and analyzed on off-line by VFM.In systole,the parameters of vortex including horizontal length,longitudinal length,transverse position,vertical position,and maximum vector velocity were measured respectively,and all parameters three days and one month after PCI were compared with those before PCI respectively.Results In systole,there were not statistically significant differences between parameters three days after PCI and those before PCI( P ＞0.05).Compared parameters one month after PCI with those before PCI,horizontal length was longer( P ＜0.05),longitudinal length was shorter (P ＜0.05),the transverse position was closer to anterior ventricular septum( P ＜0.05),and the maximum vector velocity of vortex was increased ( P ＜ 0.05).Conclusions VFM may serve as an ideal tool to quantitatively evaluate the blood flow hemodynamics of left ventricle in patients with AMI after short-term therapy by PCI.

OBJECTIVETo study the effects of Cynomorium songaricum polysaccharide (CSP) on telomere length in blood and brain tissues of aged mice in order to provide some evidence for CSP's development and applying in the clinical uses.

METHODKunming mice were intraperitoneal injected D-galactose (500 mg x kg(-1) x d(-1)) to make the aging models, and different dosages of CSP (20, 40, 80 mg x kg(-1)) were given by gavage for 56 days. The average length of telomere was determined by real-time fluorescence quantitative PCR.

RESULTThe relative T/S ratio of the group high and middle dosages of CSP in blood were 1.64 +/- 0.36 and 1.33 +/0.28, respectively, and higher than that of the group of senescence 1.01 +/- 0.13 (P < 0.01). Values of the group of high, middle, and low dosages of CSP in brain tissues were 3.34 +/- 0.58, 2.30 +/- 0. 75 and 1.55 +/- 0.58, respectively, and significantly higher than that of the group of senescence 1.04 +/- 0.33 (P < 0.01).

CONCLUSIONCSP can exert the anti-aging effects by increase telomere length f senescence mice.

Aging ; drug effects ; Animals ; Animals, Newborn ; Brain ; drug effects ; pathology ; Cellular Senescence ; drug effects ; Cynomorium ; chemistry ; Disease Models, Animal ; Drugs, Chinese Herbal ; therapeutic use ; Galactose ; pharmacology ; Humans ; In Situ Hybridization, Fluorescence ; Mice ; Polysaccharides ; pharmacology ; therapeutic use ; Telomere ; drug effects ; physiology

Objective To investigate the changes of peripheral blood expression levels of soluble fibrinogen-like protein 2 (sFGL2) in patients with chronic hepatitis B (CHB) before and after antiviral treatment.Methods From July 2013 to December 2014,initial CHB patients with entecavir antiviral therapy and healthy controls were enrolled.Clinical data at baseline and during follow-up were collected.Plasma levels of sFGL2 of all the included objects were measured by enzyme-linked immunosorbent assay (ELISA).All the patients received liver biopsy at baseline,and part of patients received a second liver biopsy at week 78 after treatment.The expression of sFGL2 in liver tissues were examined by immunohistochemistry.T test,Wilcoxon test and correlation analysis were performed for statistical analysis.Results A total of 71 CHB patients and 20 healthy controls were enrolled.At baseline,the level of plasma sFGL2 of CHB patients was significantly higher than healthy controls (105.6 μg/L (78.3 μg/L to 151.6 μg/L) vs 25.2 μg/L (18.8 μg/L to 34.3 μg/L),Z=-5.887,P＜ 0.01).The plasma sFGL2 level of patients with liver cirrhosis was 146.0 μg/L (111.3 μg/L to 166.8 μg/L),which was higher than that of patients without liver cirrhosis (79.0 μg/L (65.4 μg/L to 107.4 μg/L)),and the difference was statistically significant (Z=-4.912,P＜0.01).Plasma levels of sFGL2 were positively correlated with liver stiffness,liver inflammation and fibrosis stages (r=0.426,0.240 and 0.655;all P＜0.05).At 26 weeks and 52 weeks after treatment,the plasma levels of sFGL2 were 89.1 μg/L (69.8 μg/L to 125.5 μg/L) and 75.8 μg/L (53.4 μg/L to 98.9 μg/L),respectively,which gradually decreased compared with that at baseline (26 weeks vs baseline Z=-4.499,P＜0.01;52 weeks vs 26 weeks Z=-4.762,P＜0.01).Furthermore,at baseline the number of sFGL2 positive cells in the liver tissue of liver cirrhosis group was 33.0 ± 10.4,which was higher than that of non-liver cirrhosis group (17.6 ±6.7),and the difference was statistically significant (t=7.541,P＜0.01).Compared with that at baseline (24.5±2.0),the number of sFGL2 positive cells in liver tissue at week 78 after treatment decreased (11.3± 1.6),and the difference was statistically significant (t=11.980,P＜0.01).Conclusion Plasma level of sFGL2 is closely correlated with the degree of liver inflammation and fibrosis in CHB,and the plasma level of sFGL2 significantly decreases after long-term antiviral therapy.

Objective To evaluate the efficacy and safety of different antimicrobial regimens in patients with bloodstream infections caused by carbapenem-resistant Klebsiella pneumoniae (CRKP).Methods The clinical date of patients with CRKP bloodstream infections were retrospectively analyzed at the First Affiliated Hospital of Zhejiang University Medical College between January 2017 and January 2018.All subjects were separated into three groups based on antibiotics regimens over 72 hours,including meropenem 2.0 g every 8 hours,tigecycline 200 mg as initial dose and 100 mg every 12 hours,and polymyxin B 1.25 mg/kg every 12 hours as salvage treatment of tigecycline.Results A total of 86 patients were finally recruited,including 14,52 and 20 patients in groups of meropenem,tigecycline and polymyxin B salvage,respectively.All of the strains were resistant to meropenem and susceptible to tigecycline and polymyxin B initially,while 2 of them became resistant to tigecycline during treatment.The 28-day mortality was significantly higher in meropenem group (13/14) than that in tigecycline group and polymyxin B salvage group (61.5％,32/52) and (12/20),respectively (P＜0.01),while as no significant difference was seen in the last two groups (x2=0.014,P＞0.05).The incidences of hepatic impairment [3.8％(2/52) vs.1/20] and renal dysfunction (0 vs.1/20) between tigecycline group and polymyxin B salvage group were both comparable (P＞0.05).Conclusion The meropenem-based therapy is not recommended for CRKP-related bloodstream infections.Tigecycline-based therapy is still disappointing despite salvage use of polymyxin B after 72 hours.Hepatic and nephretic toxicities caused by additional polymyxin B are acceptable.