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.

Sperm ultrastructural abnormalities are often associated with sperm motility, the integrity of genetic material, and the fertilization potential. The investigation of sperm ultrastructural abnormalities is based on the evolution of microscopy techniques. In his paper, we review the improvement of the microscopy techniques and the ultrastructure of several specific morphological defects and he apoptotic spermatogenic cells in order to expound the significance of sperm ultrastructural observation in clinical practice. We deem it necessary to analyze the sperm ultrastructure before exploring the pathology and adopting assisted reproductive technology for some special patients with teratozoospermia.
Humans ; Male ; Microscopy ; Spermatozoa ; abnormalities ; ultrastructure

Objective To determine the cognitive profile of mild cognitive impairment due to subcortieal small vessel disease(MCI-SSVD)and mild cognitive impairment caused by Alzheimer's disease(MCI-AD)and to establish the best way of differentiating.Methods Extensive neuropsychological tests covenng 5 cognitive domains were performed on 45 MCI-SSVD patients,30 MCI-AD patients,and 61healthy controls.The impaired domains in patient groups were determined.Tests valuable in discriminating MCI-SSVD and MCI-AD were established using logistie regression analysis.Results Both patient groups showed impairments in multiple cognitive domains.The auditory verbal learning test immediate recall(control group 55.48±5.33;MCI-SSVD group 38.55±8.04;MCI-AD group 34.93±8.79;F=113.407,P=0.000),short time delayed recall(control group 13.34±1.38;MCI-SSVD group 8.47±2.18;MCI-AD group 4.06±2.87;F=216.284,P=0.000),and long time delayed recall(control group13.18±1.19;MCI-SSVD group 8.58±2.02;MCI-AD group 3.93±2.84;F=239.394,P=0.000)impaired most.Compared with MCI-SSVD,MCI-AD patients did worse in memory assessments(P=0.000),but better in mental processing and visuoconstruction(P=0.000-0.023).Two tests tapping memory and processing speed in combination could identify 93.3%MCI-SSVD patients and 93.3% MCI-AD patients correctly.Conclusions Current study indicates that both MCI-SSVD and MCI-AD,varying significantly in memory and mental processing speed,have a multiple-domain cognitive deficit,with memory impaired most seriously.Tests involving these 2 domains might be useful in differentiating MCI-SSVD from MCI-AD.

Animals ; Animals, Newborn ; Bone Marrow Transplantation ; Disease Models, Animal ; Humans ; Hypoxia, Brain ; physiopathology ; prevention & control ; Rats ; Rats, Sprague-Dawley ; Stromal Cells ; transplantation ; Transplants ; trends

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.

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 improve students' knowledge and skills of AIDS prevention,analyze the effect of interactive peer education,and explore effective ways to carry out peer education.Methods:From September 2015 to May 2016,the freshmen in one college of Xi'an were investigated of AIDS knowledge,attitude and behavior using questionnaire as baseline data.Seven hundred peers of them received education with the methods of brainstorming,group discussion and questions,and case analysis.Then a questionnaire survey was conducted again to evaluate the effect of peer education.Results:After the intervention peer education,the scores of basic AIDS knowledge,prevention knowledge,relevant attitude and the rate of positive behavioral selection were significantly increased (P ＜0.05).Approximately 92.50％ of the students thought that having sex with only one partner can reduce the spread of AIDS and 81.76％ of the students were willing to help AIDS patients.Conclusions:Interactive peer education for college students has a good applicability,the effect is remarkable,and it is worth popularizing in colleges.