Objective: To explore the effect of immune reaction induced by alginate on parotid acinar cells in vitro. Methods: Rabbits were immunized from the conjugated alginate- BSA (1.0 mg/kg) by 40-days routine immunity method. ELJSA method was used to examine the titration (valence) of anti-alginate serum. Five groups (group A: contrast, group B: BSA, group C; alginate, group D: anti-alginate serum, group E; alginate + anti-alginate serum) were examined by MTT method at four time points( 1, 6,12 and 24 h). The growth and morphology of parotid acinar cells were observed under inverted phase contrast microscope and scanning electron microscope. Results: Antibody-serum was acquired by routine immunity method, and the titration (valence) of anti-alginate serum was 1: 400. MTT results showed that the proliferation of parotid acinar cells had been limited at 24 h( P <0.05), the other three time points showed no difference. Under inverted phase contrast microscope, a few of acinar cells whose membranes were destroyed after 12 h, some cell contents leaked out. The holes in membrane could be seen early at 6h under scanning electron microscope. Most of the acinar cells were broken at 24 h. Conclusion: The antibody-serum to alginate and immunized rabbit was acquired by routine immunity method. The immune reaction induced by alginate can destroy parotid acinar cells in vitro.

Objective To study the content change and clinic significance of NO,ET,D-Dimer with UK in the treatment of ACI.Method NO,ET,and D-Dimer were measured before and after 2 h,4 h,24 h,48 h in 38 ACI patients with treatment of UK by the ways NO-2/NO-3 content measuring,radiation immunity analysis(RIA) and ELISA.Results NO in ACI was significantly low(P

Objective To study the protective effects of propofol against ischemia/reperfusion injury in rat lung. Methods Rat model of pulmonary ischemia/reperfusion injury was used in this study. Rats were randomly divided into three groups, including sham opera-tion group (group A), iachemia/reperfusion group (group B) and propofol group (group C), 15 rats in each group. The concentration of tumor necrosis factor -α and interleukin-6 in bronchoalveolar lavage fluid (BALF) were measured by enzyme linked immunosorbent assay (ELISA). Then blood gas analysis, lung wet/dry (W/D) weight ratio were detected in each group. Results Propofol could significantly improve PaO2, reduce the W/D value and the contents of TNF-α and IL-6 in BALF. Conclusion Propofol effectively suppressed the pro-duction and release of inflammatory cytokine, therefore it can protect the lung from isehemia/reperfusion injury.

Objective To evaluate the therapeutic effects of autolngous bone marrow mesenchymal stem cells transplantation in the early phase of acute renal ischemia-reperfusion(I/R)injury in rabbits and their impact on tubular epithelial cell apoptosis.Method Bone marrow mesenchymal stem cells(MSCs)were isolated and cultured in vitro.Thirty rabbits were divided randomly into transplanted group,control group and sham-operated group,10 in each group.Rabbits of transplanted group were induced acute renal I/R injury by clamping bilateral renal arteries for 90 minutes,then transplanted MSCs labeled with BrdU immediately after the resumption of circulation in kidney.The rabbits of control group were induced acute renal I/R injury and then infused with saline instead.The sharn operated rabbits were transplanted autologous MSCs labeled with BrdU after sham operation.Fortyeight hours after transplantation,all rabbits were sacrificed.Renal functional and structural damage were evaluated.MSCs derived BrdU positive cells were determined by immunostalning.Tubular epithelial cell apoptosis was arialyzed by usign TUNEL.The SPSS version 11.3 Software was used for statistical analysis.ANOVA were used to ana lyze the data of renal function and tubular epithelial cell apoptesis.Data of renal structure darnage were analyzed by using the nonparametric Kruskal-Wallis test.Results Compared with control group,the renal functional and struc tural darnage were significantly ameliorated(24 h,BUN:F=7.483,Ser:F:15.091;48 h,BUN:F:17.741.Scr:F=61.865;P<0.05),tubular epithelial cell apoptods Wsa reduced significantly in transplanted group(F=135.495,P<0.01).MSCs derived BrdU positive cell were detected in the renal tissues of transplanted rabbits.Conelusiu Autologous bone marrow mesenchymal stern cells transplantation is curative for acute renal I/R injury in rabbits.Bone marrow MSCs might ameliorate renal I/R injury by reducing tubular epithelial cell apoptosis.

Objective To investigate the risk of permanent hair dye use for connective tissue disease ( CTD ) with positive antinuclear antibodies ( ANA ).Methods We conducted a population-based case-control study to analyze 440 CTD patients from the department of our hospital.Four hundreds and forty patients' relatives or friends who were free from any CTD were selected as controls.Patients and controls were matched in sex and age.A face-to-face interview was adopted to finish questionnaires about subjects' demographic data and the use of permanent hair dye.Data about the duration,frequency,times of usage and allergy related to hair dye were collected.Medical history was also reviewed,such as the diagnosis,disease course,primary symptoms,serum tests and organ involvements.Statistical analysis was performed by SPSS 17.0 software using x2 test and Logistic regression.Results The association between the use of permanent hair dye and CTD did not reach statistical significance (OR=1.282,95％CI 0.966-1.700,P=0.085 ),when the relationship of hair dye use with systemic lupus erythematosus (SLE) was tested,the same result (OR=1.092,95％CI 0.795-1.500,P=0.587 ) could be revealed.Conclusion This preliminary study has shown that the use of permanent hair dye couldn't induce the occurrence of CTD.

Based on the point of view that the human body is an organic whole and the fact that virus and body is a unity of contradiction,the interaction mechanism of virus and immunity in the research of the anti-HIV/AIDS Chinese materia medica is discussed.On the one hand,it can widen our thinking to find new target of anti-virus drugs.On the other hand,it can also provide scientific support for understanding the complex mechanics of the anti-HIV/AIDS Chinese materia medica.

ObjectiveTo analyze the association between single nucleotide polymorphisms (SNPs) in DISC1 gene.MethodsThe studied sample consisted of 528 patients with schizophrenia (264 males and 264 females) and 528 healthy controls (264 males and 264 females).Two function SNPs were selected and gcnotyped by Illumina Golden Gate assay.Genotype and allele frequencies were compared between patients and controls to assess the association to schizophrenia.The clinical features of the hospital first patients were further examined with the Positive and Negative Syndrome Scale (PANSS) before trcatment with antipsychotics.ResultsTwo SNPs were genotyped in subjects.A significant association was found between rs3737597 and schizophrenia in genotype (387:133:8,350:164:14) and allele frequencies (907:149,864:192,P＜0.05 ).Moreover,the haplotypes,A-A constructed from two SNPs showed significant differences between cases and controls ( P＜ 0.05).For rs821616,there were significant difference in positive syndrome score,delusions and poor rapport between patients with genotypes AA or not.ConclusionThis study describes a positive association between DISC(1) and schizophrenia in the Han Chinese population and DISC1 is the susceptible gene in schiz ophrenia.

Objective: Diffuse muscular calcification was rare myopathological change due to abnormal metabolism of calcium, which was mainly found in dermatomyositis and myositis ossificans progressiva. Here we reported a case of diffuse muscular calcification that clinically mimicked myositis ossificans progressiva. The disease might be a new type of congenital calcium metabolic disease. Methods:A 15-year-old girl developed subcutaneous cysts in the wrist and ankle when she was 1 year old. At the age of 9, she developed recurrent fever with myalgia, fatigue and diffuse muscular calcification. It was difficult for her to squat, run or walk. Protuberance presented in the subcutaneous tissue of her trunk. Some nodules ruptured with outflow of chalky material. ESR, ENA, RF, CRP, PTH, CK were in normal limits. EMG was unremarkable. X-ray confirmed diffuse calcification in the muscle and subcutaneous tissues. Biceps muscle biopsy was performed. Results:Numerous inflammatory cells infiltrated around vessels in the perimyosium with perifascicular muscle fiber atrophy and degeneration. Many RRF and SDH positive fibers were also observed. EM showed tubular reticular inclusions in vascular endothelium. Conclusion: Diffuse muscular calcification indicated existence of systemic calcium metabolic abnormality. As the clinical symptoms and distribution pattern of calcification were different from dermatomyositis with subcutaneous calcification and myositis ossificans progressiva, our case might be a new type of disease. The microvascular changes might result in the lesion of muscle fibers.

Medical scientific research is the main driving force of development of medical science.In order to ensure the Hospital take the road of sustainable development in a market economy environment,We must rely on technologIcal progress and innovation to improve the comprehensive competitiveness of the hospital.Through analysis the present of our hospital scientific research,Proposed the bottleneck problem how to maintain the momentum of scientific research development.And on this basis investigate the hospital scientific research trends:Achieve major breakthrough in scientific research; To Create scientific For the sake of research team with strong competitiveness,To Strengthen personnel training gradient,reserve new force for development of hospital's scientific research; Apply for the high level scientific research projects,Strengthen the regulatory regime of the scientific research projects; Around a stable long-term scientific research direction to do depth research; Ensure The hospital's scientific research work on a sustainable development path.

Objective To compare the image quality between large dose smart tracking technique and low dose test bolus technique for gem spectral CT pulmonary angiography(CTPA).Methods A total of 106 cases with suspected pulmonary embolism were divided into two groups.Group A(54 cases)was carried out with large dose smart tracking technique.Group B(52 cases)was carried out with low dose test bolus technique.We compared the image quality between the two groups.Results There were significant differences in the CT value of the right pulmonary artery and the content of iodine in the lower lobe of the right pulmonary artery of two groups(P<0.01).There was significant difference of image quality between the two groups(P<0.05).The rate of excellent or good image quality in group A was higher than that in group B,and the difference was statistically significant(P<0.05).Conclusion Large dose smart tracking technique can track the artifacts of pulmonary artery imaging with less artifacts and uniform vascular fixation.The image quality of pulmonary artery imaging is better than that of small dose contrast agent.