Objective To study the effects of attenuated Salmonella(Ty21a-pIRES-IL-2-NK4,TPIN)carrying interleukin-2(IL-2)/4-kringle antagonist of hepatocyte growth factor(NK4)double gene on humoral and cellular immune function.Methods Eighteen BALB/c mice,half male and half female,were randomly divided into control group(1. 5 mL 10%NaHCO3 by gastric tube feeding),Ty21a group(0. 1 mL Ty21a by gastric tube feeding)and TPIN group(0. 1 mL TPIN by gastric tube feeding),with 6 mice in each group. The immunization was boosted twice 7 d after the initial immunization. At 21d after administration,the blood samples were collected from eyeballs and the serum was separated,which was detected for the serum IgG antibody level by ELISA. The thymus and spleen of mice were isolated aseptically,and the spleen cells were stimulated by Ty21a and TPIN respectively in vitro. After 72 h,the proliferation ability of spleen cells was measured by CCK-8 assay,and the expression level of cytokines in spleen cells was detected by ELISA. The spleen and thymus were weighed,the spleen and thymus indexes were analyzed,and HE staining was performed.Results Compared with the control group and Ty21a group,the serum IgG level(F = 111. 74,P < 0. 01)and the contents of IFNγ,IL-4 and IL-10 in spleen cell supernatant(F = 38. 21,11. 37 and 26. 92,respectively,each P < 0. 05)increased significantly,as well as the spleen and thymus indexes(F = 10. 419 and 5. 859,respectively,each P < 0. 05)showed significant increase. In mice of Ty21a and TPIN group,the thymus cortex widened,lymphocytes increased,and there was mild inflammatory reaction;the white pulp and lymphocytes in spleen increased with neutrophil infiltration.Conclusion TPIN has a good immune protective effect,and can significantly stimulate the body to produce humoral immunity and cellular immunity,which may have a good therapeutic effect on tumors.

Genetic Diseases, Inborn ; Humans ; Liver Cirrhosis ; Polycystic Kidney Diseases

Objective To study the changes of ICAM-1 expression in transplanted lung at the early stage after rat pulmonary transplantation.Methods The expression level of ICAM-1 protein and its mRNA in rat transplanted lung after 4 h of ventilation and reperfussion were detected by using immunohisto chemical method(SABC method)and semiquantitative reverse transcriptase polymerase reaction method in the experimental group(n=6).When donor lungs had been flushed with low potassium solution(LPDS) and preserved in 4.C LPDS for 12 h,left orthotopic pulmonary transplantation was performed.In control group (n=6), left pulmonary artery,pulmonary vein and bronchi were fully freed to be naked.Immunohistochemical test results were recorded in negative(-),suspicion(±),faint positive(+),positive(++)and intensive positive(+++).PCR products were separated by agrose gels and the density of the bands were determined by density scanning.Results The stained color of alveolar epithelial cells and pulmonary vascular endothdial cells in the transplanted lung was significantly more intensive in experimental group than in control group(P＜0.01) and the relative density values(ICAM-1/βactin)were also significandy higher in experimental group(0.837±0.044) than in control group (0.442±0.037),P＜0.01. Conclusions ICAM-1 expression in the transplanted lung was up-regulated in the early stage after pulmonary transplantation,which was related with the enhancement of ICAM-1 mRNA.

The management of medical equipment is a difficult part of health works for CPAPF'smobile health institutions,and it restricts the development of health institutions in a certain extent.So in order to do it well,this paper puts forward some countermeasures for the existing new problems in the management of medical equipment of CPAPF's mobile forces,whose aim is to enhance the ability of medical support for CPAPF's mobile forces.

Objective To explore the role of bright vessel sign (BVS) on raw three dimensional arterial spin labeling (3D ASL) image in evaluating occlusion of intracranial artery. Methods One hundred and twenty-two patients who were highly suspected of acute cerebral infarction were enrolled and analyzed. All patients were performed magnetic resonance scan with diffusion weighted image (DWI), 3D ASL and magnetic resonance angiography (MRA) sequences within 24 hours after admission. The presence or absence of restricted lesion on DWI, BVS and occlusion of intracrainal artery on MRA was reviewed. The sensitivity, specificity, positive predictive value, negative predictive value of BVS and consistency of BVS and MRA in assessing occlusion of intracranial artery were assessed. Results The sensitivity, specificity, positive predictive value and negative predictive value of BVS in assessing occlusion of intracranial artery were 83%, 99%, 95% and 96%, respectively.And the presence or absence of BVS on ASL was highly consistent with MRA in assessing occlusion of intracranial artery (κ=0.86, P<0.01). Conclusion BVS has a good sensitivity and high specificity in identifying occlusion of intracranial artery, and it is highly consistent with MRA.

Objectives To study the clinical characteristics and early diagnosis of infant with both alpha 1 antitrypin deficiency (α1-ATD) and biliary atresia (BA). Methods The clinical characteristics, serum biochemical parameters, gene mutations and treatment of one infant with both α1-ATD and BA was reported. Related literatures about liver disease caused by α1-ATD were reviewed and analyzed. Results The infant was characterised with neonatal cholestasis, hepatomegaly, elevated serum ALT, AST, total bilirubin (TB), direct bilirubin (DB) and γ-glutamyltransferase (γ-GT) and absence of bile secretion from the duodenal drainage tube. BA was conifrmed by laparotomy and pathological examination and Kasai′s operation was performed. Further, the infant was confirmed by SERPINA 1 gene mutation analysis, which leads to the diagnosis of α1-ATD. The case of infant with both alpha 1 ATD and BA has not yet been reported at home and abroad. According to the literatures, children with α1-ATD were characterized with cholestasis, hepatomegaly, hypoproteinemia, high serum ALT and AST, coagulation disorders caused by vitamin K 1 deifciency and hepatic dysfunction. Prognosis was poor without early diagnosis and treatment. Conclusions For infant cholestasis, a lot of auxiliary examinations should be performed to identify the etiology of cholestasis. Gene analysis could help differential diagnosis. Prompt diagnosis and early treatment are the key to improve the survival rate and prognosis.

Objective To investigate the effects of low-concentration lidocaine on the persistent sodium currents enhanced by hypoxia in isolated rat CA1 hippocampal neurons. Methods Brains were harvested from 10-14 day old SD rats of both sexes. Hippocampi were immediately isolated and cut into slices (400-500 ?m) which were incubated in artificial cerebral-spinal fluid (ACSF) at 31 ℃ for 1-1.5 h. CA1 regions were isolated and hippocampal neurons were prepared by enzymatical digestion. The experiment was performed in 7 groups ( n = 10 each): hypoxie control group (C) and lidocaine 1, 3, 6, 10, 20, 30 ?mol groups (L1-6). The isolated neurons were transferred to the recording chamber. The persistent sodium currents were recorded using whole-cell patch clamp technique first under normal condition. The normal perfusion solution was then replaced with hypoxie and glucose free perfusion solution within 20 seconds. The persistent sodium currents were recorded again after being perfused with hypoxie and glucose free solution with and without lidocaine. Results The persistent sodium current was greatly enhanced after 5 min hypoxia as compared to the baseline value before hypoxia. The persistent sodium current in group L1-6 was significantly lower than that in group C after 5 min hypoxia. The inhibitory effect of lidocaine on the persistent sodium current enhanced by hypoxia was dose-dependent. Conclusion Low concentration lidocaine can inhibit the persistent sodium current enhanced by hypoxia.

ObjectiveTo explore the influence of narcissism of mothers of middle school students on maternal consciousness and their rearing patterns,and to provide theoretical support for family education.Methods361 pairs middle school students and their mothers were sampled randomly and tested by middle school students' mother maternal consciousness scale and the narcissistic personality Inventory for the mothers,and the mother's subscale of EMBU for the students respectively.The data were analyzed by ANOVA,product-moment correlation and path analysis.Results 1 ) Overt narcissism had significant differences among different levels of income(F=6.501,P＜0.001 ); 2)overt narcissism was correlated positively with emotional warmth and understanding of mother and mother' s over-interference,over-protection ( r =0.121,0.126,P ＜ 0.05 ) ; covert narcissism was correlated negatively with maternal consciousness and emotional warmth and understanding of mother,and positively with over-protection,refusal and deny,and severe punishment; 3 )narcissism of mothers not only would influence their rearing patterns through maternal consciousness indirectly( β=0.319,P=0.000),but would influence that directly ( covert narcissism:β =0.281,P =0.000 ; overt narcissism:β =- 0.278,P =0.000) ; and overt narcissism had positive effect,while covert narcissism had negative effect.ConclusionNarcissism of mothers of middle school students influences maternal consciousness and rearing patterns,and effect of overt narcissism is positive,and that of covert narcissism is negative.So it is important to perfect mother's character for ameliorating their rearing pattern.

Objective To investigate the dynamic expression of Nogo-A receptor (NgR) in the hippocampus following focal cerebral ischemia in rats.Methods The focal cerebral ischemia model was established by electrocoagulating the right middle cerebral artery in rats.The expression of NgR in the ischemic hippocampal CA1,CA2 and CA3 regions at different time points after cerebral ischemia were detected by immunohistochemical staining.Results The expressions of NgR were up-regulated in hippocampal CA1 and CA2 regions at the first day,in the CA3 region at the second day after cerebral ischemia; the expressions of NgR in the CA1 and CA2 regions at the fifth day was decreased to the lowest.The expressions of NgR was up-regulated again in the CA1 and CA2 regions at the 28th day.Conclusions The NgR expression in the hippocampus in ischemic side showed different change characteristics at different regions,however,the overall change trend showed a 2 peaks and a valley phenomenon,which indicated that NgR might have different functions at different time periods after cerebral ischemia.

Objective:To observe the influence of anisodamin on guinea pig experimental nasal hypersensitivity.Method:Experimental animals were divided into normal control group, TDI group,reserpine group and anisodamine group.The scores of symptom of nose and the cytologic changes of nasal mucosa were parameters of observing.Result:The nasal symptom of reserpine group was significantly stronger than the TDI group,and the eosinophilia evidently increased (both P＜0.01).The nasal symptom of the anisodamine group reduced and the eosinophilia decreased.It is significantly difference between the TDI group and the reserpine group (both P＜0.01).Conclusion:Anisodamine may play a role in therapy of the experimental nasal hypersensitivity with hyperfuction of parasympathetic nerve.