effects of tachykinin SK, SP on mouse splenocyte and thymocyte have been studied.It was found that SK and SP can stimulate ConA or LPS-induced splenocyte prolifertion and antibody production (in cluding IgG, IgM, IgA).5 ?10~(-7)M/L SK can stimulate ConA-induced thymocyte proliferation but SP can't. The subsets of T lymphocytes in spleen and thymus have been changed after SK treatment by FACS analysis. These results show that SK and SP may play a significant regulatory role in immune response.

Biomarkers, Tumor ; Humans ; Mouth Neoplasms ; chemistry ; genetics ; Precancerous Conditions ; chemistry ; genetics

Objective To examine the inhibitory effect of Chinese herbal Compound Dongju on 4-nitroquinoline 1-oxide(4NQO)-induced tongue carcinogenesis in rats. Methods A total of 85 Wistar rats were divided into four groups: model group(n=35),administration group(n=35),normal control group(n=5) and herb control group(n=10).4NQO dissolved in drinking water was administered orally to induce tongue carcinogenesis in rats.The herb compound was injected into the stomach of the rats during oral carcinogenesis.Rats were sacrificed at 9,13,20,24 and 32 weeks from the beginning of the experiment.The tongues of the rats were dissected for gross and histological assessment,and SP immunohistochemical method was also employed to detect the expression of cyclin D1 in the specimens. Results Compared with the model group,the incidence of dysplasia and the positive rate of cyclin D1 were suppressed by Compound Dongju(P

Objective To investigate the molecular biological mechanism of deposition of triglyceride(TG)in hepatocytes in alcoholic fatty liver disease(AFLD)and the pathogenesis of this condition by detecting the contents of serum tumor necrosis fac-tor-α(TNF-α),liver triglyceride(TG),peroxisome proliferator-activated receptorα(PPARα)and acyl-CoA oxidase(Acox1)mR-NAs,and liver PPARαprotein after intervention with bezafibrate,a PPARαagonist.Methods Sixty Wistar rats were randomly divided into three groups:control group(n=20),AFLD group(n=20),and bezafibrate group(n=20).Animals in control group were given distilled water by gavage once a day for 8 weeks.Those in AFLD group were given ethanol and fish oil(2.5 mL/kg) by gavage daily for the same period of time.In bezafibrate group,rats were treated by gavage with ethanol and fish oil(2.5 mL/kg)for the first 4 weeks and then with bezafibrate(100 mg/kg)for another 4 weeks.TG in the liver was measured by colorimet-ric method,serum TNF-αlevels by enzyme linked immunoabsorbent assay (ELISA),the mRNA expression of PPARαand Acox1 in hepatocytes by reverse transcription polymerase chain reaction(RT-PCR)and the expression of PPARαprotein in hep-atocytes by Western blot.Results A significant increase in TG[AFLD group(0.72±0.09)mmol/L vs.control group(0.28± 0.07)mmol/L,P<0.01]and TNF-α[AFLD group(3.01±0.31)ng/mL vs.control group(1.07±0.28)ng/mL,P<0.01]was found in AFLD group when compared with control group.After bezafibrate intervention,the contents of liver TG and serum TNF-αwere significantly decreased.The mRNA expression of PPARα[AFLD group(0.22±0.08)vs.control group(0.68± 0.13),P<0.01]and Acox1[AFLD group(0.43±0.12)vs.control group(1.14±0.21),P<0.01]was suppressed in AFLD group,which was significantly reversed by bezafibrate treatment[bezafibrate group(0.59±0.13)for PPARαmRNA vs.AFLD group,P<0.01;bezafibrate group(0.83±0.17)for Acox1 mRNA vs.AFLD group,P<0.01].The expression of PPARαpro-tein in hepatocyts was also found to decrease in AFLD group[AFLD group(0.19±0.07)vs.control group(0.48±0.11),P<0.01].After bezafibrate intervention,it was profoundly increased.Conclusion The down-expression of PPARαand Acox1 in the liver of rats with AFLD may suppress the fatty acid metabolism and lead to the TG deposition in the liver.The increase in serum TNF-αcontents also contributes to the development of AFL.Bezafibrate can prevent and treat AFL by activating PPARα,increasing the expression of PPARαand Acox1 ,promoting the metabolism of fatty acids,decreasing the TG deposition and the serum TNF-αcontents.

In this paper a brief history of the development of PACS in China is reviewed, the current status of PACS is presented, and its development in the future is discussed.
China ; Humans ; Image Processing, Computer-Assisted ; Medical Records Systems, Computerized ; Radiology Information Systems ; organization & administration ; trends ; Technology, Radiologic

Acinetobacter baumannii ; drug effects ; isolation & purification ; Drug Resistance, Multiple, Bacterial ; Female ; Humans ; Infant, Extremely Low Birth Weight ; Infant, Newborn ; Pneumonia, Ventilator-Associated ; etiology

Objective To explore the expression of miR-9 in H/RS cells and its regulation on target PRDM1.Methods miR-9 expression in normal CD19+ B-cell subsets and eight lymphoma cell lines was detected by fluorescence quantitative RT-PCR and in situ hybridization (ISH),for quantification and location,respectively.Chemically synthesizcd antisense oligonucleotide of miR-9 was transiently transfected into L428 for its silence,and the PRDM1 expression was tested.Results Fluorescence quantitative RT-PCR showed that the expression of miR-9 in L428 cells was marked higher than that of normal CD19+ B-cell subsets and other lymphoma cell lines (the expression of miR-9 in L428 cells was 47-fold of OCI-Ly1,50-fold of Raji cells,7-fold of EBV+ immortalized B cell line,and 6-fold of ALCL cell line).ISH indicated that miR-9 located in cytoplasm,it was a diffuse and strong positive in L428,scattered and weak in DLBCL and Burkitt' s lymphoma cell lines,while negative in KARPAS-299 or Jurkat cell lines.Transient down-regulation of miR-9 in L428 leded to the increase of PRDMI protein.Conclusion miR-9 plays the role of cancer gene in cHL,and may exert a potential function in regulating terminal B cell differentiation through a post transcription regulation of PRDM1 gene.

Objective To investigate the clinical and laboratory characteristics of anticentromere antibody (ACA)and anti-SSA antibody expressions in patients with Primary Sj(o)gren's Syndrome (PSS). Methods Twelve PSS patients with ACA positive but SSA negative(ACA PSS)and 19 PSS patients with SSA positive but ACA negative(SSA PSS)were enrolled into the study and classified into two groups. We compared the age,laboratory data,occurrence of Raynaud's phenomenon(RP),and histological changes in minor labial salivary glands biopsies of the patients from two group. Results The mean age of the ACA PSS group(68.4 ± 7.9)years was significantly higher than that of the SSA PSS(54. 6 ± 16. 2)years group(P ＜ 0. 05). Serum IgG level of ACA PSS group(17. 89 ±4. 08)g/L was close to the normal range,which was significantly lower than that of SSA PSS(27.90 ±6. 72)(P ＜0. 01). Leukocytopenia was less frequently observed in ACA PSS than in SSA PSS(P ＜ 0. 05),the difference between two groups was statistically significant. We also found more frequent RP in the ACA PSS group than SSA PSS group(P ＜ 0. 05). Conclusions Our data confirm that ACA positive PSS differs from SSA positive PSS at several clinical respects and laboratorial examinations.

OBJECTIVETo evaluate the applicability of immune-related response criteria (irRC) in treating non-small cell lung cancer (NSCLC) by Chinese medicine (CM).

METHODSTotally 97 stage III a-IV NSCLC patients were predominantly treated with comprehensive CM. Curative effects were evaluated by three methods such as Response Evaluation Criteria in Solid Tumors (RECIST), Oncologic Curative Effect Evaluation Criteria of Chinese Medicine in Solid Tumor (draft, abbreviated as CM criteria), and irRC. The correspondency and consistency between irRC, RECIST and CM criteria were analyzed and compared. The objectivity of irRC in evaluating curative effect of Chinese medical treatment for NSCLC was assessed.

RESULTSThe correspondency rate of irRC to RECIST was 59. 79% with Kappa value of 0. 379 (U test, P <0. 01). The two criteria had certain correspondence, but with an unsatisfactory consistency. The correspondency rate of irRC to CM criteria rate was 83. 51% with Kappa value of 0.751 (U test, P <0. 01). The two criteria had good correspondence and consistency.

CONCLUSIONSCM criteria had good consistency with CM criteria in evaluating curative effect for Chinese medical treatment of advanced NSCLC. Its results could objectively reflect features and advantages of CM for treating advanced NSCLC.

Asian Continental Ancestry Group ; Carcinoma, Non-Small-Cell Lung ; drug therapy ; immunology ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Lung Neoplasms ; drug therapy ; immunology ; Medicine, Chinese Traditional ; standards ; Treatment Outcome

The computer-assisted surgery system is a complex system. All of the errors can be attributed to the loss of correspondence between the world coordinate system in the operation room and the virtual world coordinate system obtained from the multi-model medical images. The system's accuracy is composed of the accuracy of the localizer and that of registration. In order to improve the system accuracy, we analyse most of the possible error sources. The accuracy of the localizer affects deeply the registration between the intra-operation and pre-operation data. The localizer is the most basic and important part for a computer-assisted surgery system. We give a comprehensive possible error source at the end of the paper.
Algorithms ; Equipment Design ; Equipment Failure Analysis ; Imaging, Three-Dimensional ; instrumentation ; methods ; Magnetic Resonance Imaging ; Phantoms, Imaging ; Software ; Surgery, Computer-Assisted ; instrumentation ; methods ; Tomography, Emission-Computed, Single-Photon ; Tomography, X-Ray Computed