AIM To investigate the positive inotropic effect of aconitine on isolated hearts from cardiac dysfunctional rats when combined with pinacidil. METHODS In our experiment Langendorff perfusion equipment was used to investigate the following cardiac indexes:LVSP(left ventricular systolic pressure), LVDP(left ventricular diastolic pressure), +d p /d t max (the maximum going up rate of left ventricular pressure) and -d p /d t max (the maximum going down rate of left ventricular pressure) from rat hearts under two conditions:① aconitine only,② aconitine plus pinacidil(an agonist of K ATP channel) to observe the positive inotropic effect of aconitine on cardiac dysfunctional rat hearts. RESULS ①Aconitine had certain positive inotropic effect on isolated hearts from cardiac dysfunctional rats; ②Combing aconitine with potassium channel activator markedly winded the doses range between the effective and toxic concentration and enhanced the cardiotonic effect of aconitine. CONCLUSION Aconitine had positive inotropic effect on dysfunctional isolated rat hearts; the combination of aconitine with potassium channel activator markedly widened the cardiotonic doses range of aconitine and enhanced its cardiotonic effect.

Objective:To investigate the curative effect of electroacupuncture on urine retention following cervical cancer operation. Methods: A treatment group was treated with electroacupuncture according to classification based on syndrome differentiation and a control group, by a conventional method. One course of treatment consisted of 5 days. Results: The curative rate and cure rate were 96.67% and 76.67%, respectively, in the treatment group and 70% and 36.67%, respectively, in the control group. There were significant differences in curative rate and cure rate between the two groups (P＜0.01). Conclusion:Electroacupuncture is a good method for treating urine retention subsequent to cervical cancer operation.

Objective To explore the effects on self-efficacy and health behavior change in elderly patients with chronic diseases in community by motivational interviewing and to provide the basis for the health behavior management of elderly patients with chronic diseases in community.Methods The study was based on a cross-section investigation by random cluster sampling which included a sample of 287 elderly patients.The questionnaire was localized good life club questionnaire of Australia,including demographic data,prevalence of chronic diseases,health-related indicators,self-health assessment,psychological pressure measurement,life satisfaction scale and assessment of behavior change stage.A total of 265 valid questionnaires were effective,and the effective rate was 92.3％.Results The scores of self-reported symptoms and life satisfaction of patients with chronic diseases after motivational interviewing were significantly higher than before (F=8.527,7.697; P＜0.05),the scores of stress scale and behavior change stages were significantly lower than before (F=229.483,91.613; P＜0.01).The score differences with health self-assessment,functional status and social function evaluation were not statistically significant(F=0.222,2.084,P＞0.05).The number of patients who believed their health are better rose from 102 to 114,the number of patients whose life satisfaction were moderate and above rose from 255 to 265,and the number of high risk of psychological stress reduced from 5 to 1.In the stages of behavior change,the number of people in the action stage rose from 1 to 20,and the number of people in the preparation stage rose from 138 to 215 after the intervention.Conclusion Motivational interviewing can strengthen the self-efficacy in elderly patients with chronic diseases in community significantly and promote healthy behavior change.It is necessary to provide ongoing support for motivational interviewing to consolidate its behavior change outcomes,because of the complexity of the development process of behavior change stages.

Objective To investigate the effects of 1% ropivacaine injected epineurally or intraneurally on the recovery of sciatic nerve from acute injury in rats. Methods Seventy-two healthy male Wistar rats weighing 220-250 g were xandomly assigned into 4 groups ( n = 18 each): group Ⅰ epineural injection of normal saline(NS)(group C1); group Ⅱ intraneural injection of NS (group C2); group Ⅲ epineural injection of 1% ropivacaine (group Epi-R) and group Ⅳ intraneural injection of 1% ropivacaine (group Intra-R). The animals were anesthetized with intraperitoneal 3% pentobarbital 60 mg/kg. The sciatic nerve was exposed and crushed with blood vessel clamp for 2 min. NS or 1% ropivacaine 0.2 ml was injected epineurally or intraneurally after release of the clamp.Sciatic nerve function was measured and sciatic nerve function index (SFI) was calculated at day 1, 3, 7, 14, 21and 28 after operation. Six animals in each group were anesthetized on the 14th and 28th day after operation and the nerve conduction velocity (NCV) of the sciatic nerve was measured. The sciatic nerve was then removed for histologic examination. Results There was no significant difference in SFI and NCV at all time points among group C1 , C2 and Epi-R. SFI was almost normal on the 28th day after operation in the 3 groups. The NCV was significantly slower at day 14 and 28 after operation in intra-R group than in the other 3 groups. Conclusion Intra-neural injection of ropivacaine can significantly delay the recovery of sciatic nerve from acute injury.

Histone modification participates in the occurrence and development of the diseases though affecting gene transcrip-tion activity by acetylation,methylation,phosphorylation,and other forms.It is an important field in the study of epigenetics. Numerous studies have demonstrated that histone modification plays an important role in the occurrence and development of liv-er diseases.This paper reviews the recent progress in under-standing the role and mechanisms of histone modification in alco-holic liver disease,nonalcoholic fatty liver disease,viral hepati-tis,liver fibrosis and hepatocellular carcinoma,with an aim to provide a theoretical basis for the treatment of liver diseases and drug development.

Free lysine in a preparation of queen bee's embryo was isolated using cation exchange resin- The Q-aminoand carboxyl group of lysine was complexed with cupric ion and the E-amino group reacted with FDNB(Fluoro-dinitrobenzene). After acid treatment and extraction with ether,the absorbance of the solution at 395nm was determined by spectrophotometry. Variation coefficient of the determination was less than 6% and the recovery of lysine was 95 % ~ 110 %.

Aim To explore the inhibitory effect of li-gustrazine combined with paeonol on rat liver fibrosis induced by CCl4 and its mechanisms,so as to provide new treatment strategies for liver fibrosis in clinical. Methods Cleaning laboratory male SD rats were ran-domly divided into blank control group,model group (CCl4 ),ligustrazine group,paeonol group and combi-nation group (ligustrazine+paeonol).HE staining was used to observe the pathological change.Masson stai-ning and Sirius red staining was used to observe the collagen deposition.The levels of serum ALT,AST, ALP and hydroxyproline were detected by automatic bi-ochemistry analyzer.Western blot detected the markers of liver fibrosis.HSC-T6 cell was divided into model group,ligustrazine group,paeonol group and combina-tion group.The protein and gene expression of inflam-mation and apoptosis pathway was analyzed by Western blot and real time-PCR.Results Ligustrazine com-bined with paeonol could significantly improve liver tis-sue pathology changes caused by CCl4 .It could reduce serum ALT, AST, ALP and hydroxyproline levels. Moreover,it could also inhibit liver fibrosis marker protein expression,and thus reduce the deposition of collagen fibers.The effect was better than that in sin-gle intervention group.Combination group could inhib-it the inflammatory pathways related protein expression in HSC cells and promote the apoptosis of HSC cells. Conclusion Ligustrazine in combination with paeonol has significant anti-fibrosis effect,and the effect is bet-ter than both single intervention.The effect may be due to the interference with TNF-α/NF-κB pathway in the HSC cells,which promotes its apoptosis and inhib-its the generation of extracellular matrix.

Objective To investigate the risk factors associated with cranial nerve impairment in patients with tuberculous meningitis.Methods A total of 121 patients with tuberculous meningitis who were admitted to Huashan Hospital from 2000 to 2011 were reviewed retrospectively.Demographic data (gender,age),course of disease,initial results of cerebral spinal fluid (CSF) tests,occurrence of cranial nerve impairment and prognosis of these patients were collected.All the patients were followed up for at least 3 months,and for those with cranial nerve impairment,the minimum follow-up period was 1 year in order to judge the recovery of cranial nerve impairment.Multivariate analysis was performed to study the associated risk factors.Results Out of 121 patients,22 (18.2 ％)developed cranial nerve impairment.Nerves involved were abducens nerve,oculomotor nerve,optic nerve and auditory nerve,and impairment of single nerve occurred in 9 (40.9 ％),8 (36.4 ％),7(31.8％) and 1(4.5％) patient,respectively.Three cases had more than one group of cranial nerves involved,accounting for 13.6％ of the 22 patients with cranial nerve impairment.The incidence of conscious disturbance was significantly higher in patients with cranial nerve impairment than those without impairment (77 ％ vs 45 ％,P=0.020).Delay in diagnosis (OR =1.017,95 ％ CI:1.001-1.033,P=0.040) and occurrence of conscious disturbance (OR =3.242,95 ％ CI:1.142-9.205,P=0.027) were independent predictive factors of cranial nerve injury.During one-year follow-up,90.9％ of patients were fully recovered from cranial nerve impairment,with a median duration of 1 month (range 0.5-6.0 months).Conclusions Cranial nerve impairment is a common complication in patients with tuberculous meningitis.Delay in diagnosis and occurrence of conscious disturbance were independent predictive factors.Most cranial nerve impairment were reversible,and timely diagnosis and treatment are important ways to reduce complications.

AIM:To investigate the effects of gonadotropin-releasing hormone ( GnRH) analogue on the growth of breast cancer cell lines MCF-7 and MDA-MB-231 in vitro and to explore the related mechanisms with PI 3K/Akt or ERK/MAPK pathways .METHODS: The proliferation of human breast cancer cell lines MCF-7 and MDA-MB-231 treatment with triptorelin was detected by MTT assay and the distribution of the cell cycle was determined by flow cytometry .The phosphorylation of the ERK 1/2 and Akt was evaluated by Western blotting .RESULTS:Triptorelin inhibited the prolifera-tion of MCF-7 cells at concentration of 10-5 mol/L after treated for 192 h or at concentration of 10 -4 mol/L after treated for 168 h and 192 h.Triptorelin inhibited the proliferation of MDA-MB-231 cells at concentration of 10 -4 mol/L after treated for 192 h (P<0.05).Treatment with triptorelin for 192 h at concentration of 10 -4 mol/L had no statistical significance effect on phosphorylation of ERK1/2 and Akt(P>0.05).CONCLUSION:Inhibitory effect of GnRH analogue triptorelin on human breast cancer cells is not just the connection with the down-regulation of pituitary hormone , but also a direct in-hibitory effect.The role may not be involved in the activation of ERK /MAPK and PI3K/Akt signaling pathways .

Objective To study the effect of chronic poisoning of ketamine on brain cell apoptosis in adult mouse under different duration and doses. Methods The mouse model of chronic poisoning of ketamine was established on adult mouse by tail vein injection of ketamine twice every week with different doses (4, 10, 20 and 30 m g/kg). The mice were sacrificed after continuous injection of ketamine of 1, 2, 4, 8 and 12 weeks. The qualitative assessment of apoptosis was made by transmission electron microscope and the quantitative assessment was made by Caspase-3 im m umofluorescence staining method and terminal deoxynucleotidyl transferase-mediated dU TP nick end labeling (TUNEL ) to estimate the time point of apoptosis. All the experimental results were statistically analyzed. Results The neuron apoptosis was ob-served in hippocam pus and corpus striatum by transmission electron microscope one week after adminis-tration, and continued for eight weeks. High level of Caspase-3 expression was observed one week after administration, but with a lowlevel expression after 4 weeks. The num ber of TUNEL positive cells ob-viously increased one week after administration and maintained in ahigh num ber at 4 weeks. Conclu-sion Ketamine by tail vein injection could induce neuron apoptosis in adult mouse.