AIM: To investigate the immunoloregulation effect of Angelica polysaccharide extracted from Angelica Sinensis (Oliv.) Diels. METHODS: Index of immune organs were weighed and calculated. Phagocytosis of mononuclear macrophage (M) were determined with carbon particle clearance test. Spectrophotography was used to estimate levels of serum hemolysis IgG, IgM. The cell proliferation was measured by MTT assay. RESULTS: In certain doses (10-100 mg/kg), Angelica polysaccharide significantly increased phagocytic function and spleen index in immunosuppression mice caused by hydrocortisone, while showed no obviouse influnence on thymus index. It also remarkble decreased levels of serum hemolysis IgG, IgM. In vitro experiments, Angelica polysaccharide could increase the proliferation of mouse spleen cell and macrophage. CONCLUSION: These results suggest that Angelica polysaccharide has potent enhancement on non specific immunity, however, it could suppress humoral immunity.

Objective To explore the relationship between HPV infection and the incidence of cervical canc-er and precancerous lesions in women.Methods 108 patients with cervical disease who accepted cervical screening were chosen as the research subjects, and they were given colposcopy and pathological examination, hybrid capture 2 generation method for quantitative detection of HPV-DNA content,RLU/CO was used for viral load and HPV-DNA content was more than 1ng/L(RLU/CO>1) can be judged as positive.Results The positive rates of HPV-DNA was 35.00%,67.74%and 95.83%of chronic cervicitis,cervical cancer precursor lesions( CIN) and invasive cervical squamous cell carcinoma,the difference was statistically significant(χ2 =10.73,P<0.05) .The positive rates of HPV DNA in patients with typeⅠCIN,typeⅡCIN,typeⅢCIN were 44.44%,62.50%and 95.00%respective-ly,the difference was statistically significant(χ2 =11.43,P<0.05).HPV-DNA and the positive rate of cervical cancer patients with histological grade,clinical stage,lymph node metastasis,there was no significant correlation(χ2 =1.76,1.44,1.89, all P >0.05 ) .Conclusion HPV -DNA positive rate increased with the severity of cervical lesions in patients,but it had no significant correlation with clinical and pathological parameters,the active prevention of HPV infection of cervical cancer prevention had important significance.

The problem that the medical information work is specific expression of hospital comprehensive efficiency is pointed out. By giving medical information personnel is the key of the information construction, the emphasizing important effect of it and aiming directly at "patient-centered" to produce the construction level on the function of information center and medical information personnel. The hospital development combines with reality of medical information to prefer culti- vation suggestion of the medical information personnel.

Aim To establish a mouse model of AIDS and observe the effects of Combivir,an anti-AIDS drug.Methods The model was set up by infecting infant mice with L6565 murine leukemia virus.Quantitative RT-PCR method was used to measure viral load in plasma.The percentage of CD4~+ and CD8~+ lymphacytes was estimated by flowcytometric method.The number of WBC,RBC and marrow karyote was counted.indexes of immune organs were weighed and calculated.Results Compared with control,the viral load in plasma in the model was at high level.The percentage of CD4~+ lymphocyte,the ratio of CD4~+/CD8~+,the number of RBC and marrow karyote,and thymus index were significantly decreased in the model,while the number of WBC and spleen index was remarkably increased.Conclusion AIDS patient symptom is shown in mouse infected with L6565 murine leukemia virus.This suggests that this model is likely to be used as a mice model to evaluate the effect of anti-AIDS drugs.

This paper investigated contamination situation of Listeria monocytogenes(Lm). To compare dif- ferent selectivity enrichment broth for detectable effect of Lm and compare detectable effect in different samples by using different methods, furthermore, choose the best enrichment broth for specific food. One hundred and thirty five random samples from raw meat, aquatic product, fruit and vegetable, quick-frozen food in Baoding. Applied LB enrichment broth, EB enrichment broth, new modification FDA enrichment broth and Fraser enrichment broth before separated by PALCAM selective agar, then identified by interna- tional standard method after PCR. Results: Four methods showed that there were 23 Lm positive, detected 5 Lm by LB method, 6 Lm by Fraser method, 5 Lm by EB method and 7 Lm by new modification FDA method. The total detectable rate of four methods had no large specificity, but to specific kind of food was different.

Objective To investigate the possible mechanism of the gap junctional influence on the change in permeability of the blood-brain barrier(BBB)after reperfusion subsequent to cerebral ischemia.Methods In the test laser scanning confocal microscope(LSCM)was used to investigate the change of Cx43 levels and distribution.The MCAO/R model was induced using intraluminal suture technique first described by Longa with a little modification.A total of 60 Wistar rats were divided into 4 groups:the sham-operation group,control group,octanol-treatment group and DMSO vehicle control group. Control group were further divided into seven subgroups at different time points of reperfusion after middle cerebral artery occlusion.To observe the change in permeability of BBB,Evans blue(EB)in the brain tissue was surveyed by the means of EB fluorescent quantitation.Octanol-treatment group and DMSO vehicle control group were done at the point of the peak of permeability of BBB.Octanol,the specific blocker for gap junctions(GJ)was used in an intervention study.To compare the amount of EB with the same point of groups,the influence of octanol on BBB permeability was investigated.Results At 3 h of reperfusion after cerebral ischemia for 2 h,the permeability of BBB began to increase,reached the peak at 24 h of reperfusion and was still elevated at 72 h.The Cx43 expression formed into bigger plague and remained linear disposition in the penumbra after reperfusion subsequent to cerebral ischemia.Octanol group was done at 24 h of reperfusion after cerebral ischemia.The amount of EB of octanol group((4.924?0.296)?g/g)was significantly lower than that of corresponding operation control group(5.543?0.506)?g/g.Conclusions (1)Cx43 expression is concentrated around vessels in brain.The Cx43 forms into bigger plague and the function maybe strengthens after reperfusion.Gap junction might aggravate the disruption of BBB.(2) Octanol,the specific blocker of gap junctions,could effectively prevent the permeability of BBB from increasing and has a protective effect on BBB.

Object To investigate the effects of Angelica polysaccharide (AP 0) and its sulfates (APS) on blood coagulation and platelet aggregation. Methods Infrared turbidimetric method was used to estimate platelet aggregation, prothrombin time (PT) and thrombin time (TT), actiated partial thromboplastin time (APTT); bleeding time (BT) was measured by cutting the mouse's tail and coagulate time (CT) was measured by glass method sheet; hemorheology was measured with heparin as anticoagulant.Results The AP 0 and APS prominently enhanced the platelet aggregation at 5 min (PAG ), while showed less effects on the maximum platelet aggregation (PAG ); they, especially APS 1, also markedly prolonged CT but shortened BT, both AP 0 and APS 1 significantly prolonged TT and APTT in all experimental dosage, while only APS 1 in high dosage (8.46 mg/kg) significantly prolonged PT; AP 0 increased the aggregation index (AI) of RBC and the whole blood viscosity (? b) at shear rate of 5 s -1 at a dose of 2.00 mg/kg, however, unlike AP 0, APS 1 decreased AI and ? b at shear rate of 5 s -1 and 230 s -1 . Conclusion These results suggest that AP 0 and APSs have potent anticoagulant and haemostasis effects. The haemostasis effect is related to promoted platelet aggregation. Ameliorative effect of Angelica polysaccharide sulfate on hemorheology is better than that of Angelica polysaccharide itself.

AIM: To compare the visual acuity and contrast sensitivity of eyes with different corneal spherical aberration implanted with the same aspherical IOL and evaluate the effect of different ocular spherical aberration on visual performance after phacoemulsification.
METHODS:It was a prospective case series study. Forty-six eyes of thirty-nine age-related cataract patients in our department were included. The patients were divided into 3 groups according to the value of preoperative corneal spherical aberration. Eyes with corneal spherical aberration≤0. 2μm were assigned to group A, those with corneal spherical aberration >0. 2μm and ≤0. 3μm to group B, and those with corneal spherical aberration≥ 0. 3μm to group C. All patients underwent phacoemulcification and recieved AcrySof IQ aspheric IOL. Uncorrected visual acuity ( UCVA ) , best-corrected visual acuity( BCVA) , contrast sensitivity, and total ocular higher - order aberrations for a 6. 0mm pupil were recorded 3mo postoperatively. ANOVA were used to analyze the data.
RESULTS: There were no significant differences in UCVA and BCVA between the 3 groups (P=0. 287, 0. 115). Contrast sensitivity was no statistically significant difference between the 3 groups at any spatial frequency under photopic、 mesopic, and mesopic with glare conditions (P>0. 05). With a 6. 0mm pupil diameter, root mean square values for total ocular higher - order aberrations were lower in groups A and B than that in group C (P=0. 000). The difference of total ocular spherical aberration was statistically significant between the 3 groups (P=0. 000). Coma and trefoil were similar between the groups (P=0. 788,0. 590), with no statistically significant differences.CONCLUSION:Implantation of the same aspherical IOL in eyes with different corneal spherical aberration results in similar visual acuity and contrast sensitivity. Small differences of ocular spherical aberration after phacoemulsification have no effect on visual performance.

Objective To observe the changes of hippocampal NogoA-NgR1 signaling on postoperative cognitive function (POCD) in aged mice, and explore the potential underling mechanism.Methods Isoflurane anesthesia and laparotomy were applied to establish the POCD model.Forty aged male C57BL/6 mice were randomly divided into the following four groups (n=10): group O2+saline (group OS), group O2+NEP1-40 (group ON), group isoflurane anesthesia+laparotomy surgery+saline (group SS), and group isoflurane anesthesia+laparotomy surgery+NEP1-40 (group SN).Cannula placement was performed into lateral ventricle 7 days before the surgery.Animals were subjected to an administration of NEP1-40 (20 μg/2 μl) or isochoric saline via intracerebroventricular injection once daily for 8 consecutive days, injection was given from 2 h before isoflurane anesthesia to the last behavioral test.Open field test was performed at 5th d after operation.Contextual and cued fear conditioning training and testing were exhibited at 6th and 7th d after operation, respectively.The hippocampus was harvested 2 h after the behavioral test.Western blot was used to detect the expressions of NogoA, NgR1, RhoA, ROCK2 and GAP43.Golgi staining was applied to measure the changes of dendritic spines in hippocampal CA1 area.Results Compared with the groups OS and ON, the freezing time in the contextual fear conditioning test was significantly decreased, the contents of NogoA, NgR1, RhoA and ROCK2 were significantly increased, the content of GAP43 and the number of dendritic spine were significantly decreased in group SS (P<0.05).Compared with the group SS, the freezing time in the contextual fear conditioning test was significantly increased, the contents of RhoA and ROCK2 were significantly decreased, the content of GAP43 and the number of dendritic spine were significantly increased in group SN (P<0.05).Conclusion Over-activated of hippocampal NogoA-NgR1 signaling participated in the pathogenesis of POCD in aged mice.

Objective To study the influence of hyponatremia on prognosis in hospitalized patients with chronic heart failure . Methods A total of 322 patients with chronic heart failure from Feb .2006 to Aug .2012 were retrospectively reviewed and random-ly divided into hyponatremia group(n=161) and normal serum sodium group(n=161) .The clinical data of the two groups were compared .Results There were significant difference between the two groups in the BNP levels ,length of stay ,hospital mortality and readmission rates(P<0 .05) .Serum sodium concentration in hyponatremia group was decreased with the decrease of cardiac function(P<0 .05) ,BNP levels was elevated with the decrease of blood sodium level (P<0 .05) ,days of hospitalization and hospital mortality were increased with the decrease of cardiac function (P< 0 .05) .Conclusion Patients with heart failure combined hy-ponatremia have poor cardiac function ,higher in-hospital mortality and readmission rates and longer hospital stay .