Objective To evaluate the clinical utility of interferon-gamma (IFN-γ) in serum and cerebrospinal fluid in the diagnosis of tuberculous meningitis .Methods IFN-γlevels in serum and cerebrospinal fluid were analyzed by ELISA method in 25 patients with tuberculous meningitis ,31 patients with viral meningitis and 12 patients with suppurative meningitis .Results The IFN-γlevels in cerebrospinal fluid were significantly higher in the patients with tuberculous meningitis (386 .3 ± 83 .5) ng/L than in the patients with viral meningitis (63 .4 ± 16 .2) ng/L or the patients with suppurative meningitis (116 .8 ± 22 .6) ng/L (P<0 .01) .The overlap was very small .In contrast ,the serum IFN-γ levels were very similar among the three groups (P>0 .05) .The sensitivity ,specificity and accuracy of IFN-γ level in cerebrospinal fluid for diagnosis of tuberculous meningitis were 92 .0% ,95 .3% and 94 .1% ,respectively .Conclusions Measurement of IFN-γlevel in cerebrospinal fluid may be helpful for the diagnosis of tuberculous meningitis .

BACKGROUND: Osteophyte caused by degenerative osteoarthropathy of the cervical vertebrae may compress the vertebral artery, resulting in vertebrobasilar insufficiency, especially when the patients' head postures change, making them adapt forced head position.OBJECTIVE: To investigate successively the relationship between the change of flow velocity of the posterior circulation and the symptom of vertebrobasilar insufficiency during various head postures with transcranial Doppler ultrasound.DESIGN: Randomized grouping controlled, auto-control observation.SETTING: Department of Neurology, Guangxi Minzu Hospital and Department of Neurology, First Hospital, Peking University.PARTICIPANTS: A total of 20 patients with vertebrobasilar insufficiency and 10 normal persons were enrolled from Department of Neurology,Guangxi Minzu Hospital between March 2003 and May 2004.METHODS: Regard blood flow velocity in natural position of anterior segment of posterior cerebral artery as baseline values. Blood flow velocity was compared at left rotation, right rotation, anterior inflexion and posterior inflexion. Symptoms of vertebrobasilar insufficiency were observed. The data were collected and compared in individuals, within group, and between groups.MAIN OUTCOME MEASURES: Blood flow velocity difference of various head postures in each group; Symptoms of vertebrobasilar insufficiency were observed.RESULTS:During monitoring, there were 9 cases complained of ischemic symptoms and 11 cases without symptoms. There was no significant difference in blood flow change of left rotation, right rotation and posterior inflexion in the normal control group with natural position. The reduction of flow velocity was significant in anterior inflexion (P ＜ 0.05 ), and none appeared clinical symptom. There was significant difference in reduction of blood flow at anterior inflexion and at natural position in patients with symptom (P ＜ 0.05), and there was significant difference in reduction of blood flow at posterior inflexion and natural position (P ＜ 0.001 ). There was significant difference in reduction of blood flow at left rotation and posterior inflexion in those without symptom during monitoring as compared with that at natural position (P ＜ 0.05 ).CONCLUSION: Continuously observing the blood flow in posterior cerebral artery at different head position can objectively assess the relationship between decrease of blood flow velocity of vertebral arteries induced by neck movements and clinical symptoms.

Objective:To detect expression level of miR-410 in patients with systemic lupus erythematosus (SLE),and to expose the role of miR-410 and its target genes by bioinformatics methods.Methods:Expression level of miR-410 were detected by quantitative RT-PCR in peripheral blood mononuclear cells of SLE patients,and miR-410 sequence,its target genes and Genecards database were analyzed,and analysis of GO enrichment and KEGG Pathway was further performed.Results:miR-410 expression was significantly reduced in SLE patients,and its nucleotide sequence was highly conserved among species.These genes that were predicted to be regulated by miR-410 and associated with LE pathogenesis,included FASLG,CSF2,IFNAR2,MAPK1,PLCG2,IL4 and other genes.Analysis of GO enrichment revealed that miR-410's target genes were involved in cell growth,proliferation,programmed cell death,cell differentiation,immune system development and other biological activities.Analysis of KEGG Pathway showed that the target genes of miR-410 were significantly enriched in a series of signaling pathways including pathways in cancer,cytokine-cytokine receptor interaction,glioma,melanoma,TGF-β and JAK-STAT signaling pathway.Conclusion:miR-410 maybe directly regulate its target molecules,mediate various signal pathway networks,thus participate in the occurrence and development of SLE.

Objective To compare the effects of interferon alfa-1b(IFN?-1b) and pegylated IFN?-1b(PEG IFN?-1b) on inhibiting growth of human liver cancer cells in vivo.Methods Human liver cancer cells(HepG-2,2?l06/0.2ml) cultured in log phase were subcutaneously injected into the right rear flank of male BALB/C nude mice to establish the tumor model.After HepG-2 injection,the tumor growth was followed up for 14 days.The mice with HepG-2 tumor were randomly divided into placebo(n=7),PEG IFN?-1b(n=8) and IFN?-1b(n=8) groups.Mice received injection of placebo 0.2ml/mouse each time(three times a week),PEG IFN?-1b 150?g/mouse per injection(once a week) and IFN?-1b 50?g/mouse each time(three times a week),respectively,according to their grouping,and this regime lasted for five weeks.In order to evaluate anti-tumor activity,animals' body weight was measured every week,and the measurements of tumor volume and animals' body weight were continuously done till the mice were sacrificed at the end of the fifth week.Results PEG IFN?-1b and IFN?-1b induced a significant decrease in tumor volume and the animals' weight,the suppression rates onto tumor growth were 56%(2.190g vs.4.979g) and 42%(2.678g vs.4.979g),respectively.However,no significant difference was found in animals' weight among the three groups.Conclusion HepG-2(2?l06/0.2ml) injection into nude mice may induce a typical tumor model.PEG IFN?-1b(150?g/mouse per time,once a week) could significantly inhibit the growth of HepG-2 in vivo,and so does the IFN?-1b(50?g/mouse each time,three times per week).

Objective To investigate the clinical value of helical CT dual-phase scan in diagnosis and staging in gastrointestinal tumor.Methods Helical CT dual-phase enhanced imaging features of gastrointestinal tumor proved by surgery and pathology in 69 cases were retrospectively reviewed.Results(1)The tumors in 55 cases were enhanced ovviously in the venous phase compared with that in arterial phase(P

0.05). In HiLo group, the levels of MDA and SOD did not changed signific antly(P

Objective:To study the relationship between an interpersonal climate of universities and teachers' mental health by self-made Scale of Interpersonal Climate (SIC).Methods:532 teachers from 16 universities all over the country were randomly chosen and assessed with SRHMS and SIC.Results: ①The better interpersonal climates of universities covered around 68.8% ; the most harmonious interpersonal relationships covered 72.4% ; worse interpersonal attitude, worse interpersonal interaction and worse interpersonal distance covered 44.5%,44.5% and 46.1% respectively ; the general feelings towards mental health of teachers in universities were better (the bad self-assessment、the medium self-assessment and better self-assessment are 9.0%,56.1% and 34.9% respectively ) . ② There was prominent positive correlation between universities' interpersonal climate and teachers' mental health(r=0.44). Meanwhile there was prominent negative correlation between negative emotion and interpersonal interaction, interpersonal harmony and interpersonal attitude(r=-0.25,-0.30,-0.30), but there was prominent positive correlation between negative emotion and interpersonal distance(r=0.24). ③ There was very distinct regression between interpersonal interaction and mental health, interpersonal harmony and mental health(?=0.28、0.22).Conclusions: The general feelings towards mental health of teachers in universities are better;There are close relationships between interpersonal climates of universities and teachers' mental health, and interpersonal interaction and interpersonal harmony play a brilliant role in mental health regression , they are the positive predictable factors to teachers' mental health.

Objective To explore the expression of survivin gene in retinoblastoma (RB) and its relationship with the stages and histodifferentiation degree of RB and the expression of p53?bcl-2 proteins. Methods Expression of survivin, p53 and bcl-2 proteins in 38 RB conventional paraffin samples were detected with survivin, p53 and bcl-2 monoclonal antibodies respectively by immunohistochemical assay. The expression of survivin of normal retina in 6 control samples was observed. Results In 38 cases of RB, positive expression of survivin was found in 20 (52.6%); while none of the 6 normal retinal tissue expressed survivin, which had significant difference between the two group (P0.05). In 38 RB cases, positive expression of p53 was in 25 with the rate of 65.8%, and of bcl-2 in 18 with the rate of 47.4%. The positive-expressed rates were much higher in positive-expressed p53 and bcl-2 group than those in the negative-expressed p53 and bcl-2 group (P

OBJECTIVE:To compare the cost-effectiveness of4antibacterials in the prevention of post-operative in-fection in patients with uterine-incision delivery(UID).METHODS:A total of1066cases with UID were ascribed to receive cefoperazone sodium/sulbactam sodium+arilin(therapy A),ampicillin sodium/sulbactam sodium+arilin(B),cefradine+ar-ilin(C)and cefoperazone sodium/sulbactam sodium(D),respectively for the prevention of infection.The cost-effectiveness of the4groups was analyzed retrospectively.RESULTS:The costs of the4schemes were4954.13yuan,4752.77yuan,3870.16yuan and3988.22yuan,respectively;The effective rates were98.5%,87.4%,84.6%and96.8%,respectively;The cost-effectiveness ratios were50.30,54.38,45.75and41.20,respectively;The incremental cost-effectiveness ratios of scheme A,B and D were77.98,315.22and9.68,respectively as against scheme C.CONCLUSIONS:Scheme D is more economical and reasonable in the prevention of post-operative infection in patients with UID.

1 were also high in DDDs(i.e.high dosage).CONCLUSION: The patients undergoing uterine-incision delivery had a high proportion in using antimicrobial drugs yet the choice of drug kinds was reasonable.However,great attention should be paid to the high dosage of some of the antimicrobial drugs.