The human interleukin-24 gene (hIL-24),alse referred to as melanoma differentiation associated gene-7 (MDA-7), is a novel cancer-selective apoptosis-inducing eytokine gene with broadspectrum antitumor activity. Multiple data have demonstrated that treatment of tumors with a combination of IL-24 and other strategies such as drug therapy, radiation, dual gene therapy and so on, caused synergistic antitumor effects. These results will provide a impetus for further combination therapy in various tumors.

Objective To study the detection of pathogens and drug resistance in the patients with diabetes mellitus associated urinary tract infection. Methods The clinical data of 256 patients with diabetes mellitus associated urinary tract infection were analyzed retrospectively,and the pathogens and drug resistance of all the patients were studied and analyzed. Results The 230 isolates out of 256 patients were detected,escherichia coli was 116 isolates,pseudomonas aeruginosa was 24 isolates,klebsiella pneumonia was 22 isolates,enterococcus faecalis was 20 isolates,proteus was 19 isolates,aureus was 17 isolates,other was 12 isolates,drug resistance of pathogenic bacteria for the penicillins and cephalothin were strong(21.5% ～ 50. 0% ). Conclusion The drug resistance of pathogenic bacteria in the patients with diabetes mellitus associated urinary tract infection were various, drug resistance of common antibiotics is high.

Objective To investigate the synergistic proliferation-inhibiting and apoptosis-inducing effects of recombinant human-derived interleukin-24 (rhIL-24) and recombinant human-derived decorin (rhDCN) on human hepatocellular carcinoma cells HepG2.Methods Cellular growth and morphological changes of HepG2 cells were observed under the inverted microscope at 48 h after being transiently transfected with pcDNA3.1 (+)-IL-24 and pcDNA3.1 (+)-DCN by Lipofectamine.The proliferation-inhibiting effects of IL-24 and DCN on HepG2 cells,respectively and jointly,were observed with MTT assay at 24 h,48 h and 72 h post-transfection.Apoptosis and cell-cycle of HepG2 cells were analyzed by flow cytometry at 48 h post-transfection.Results Compared to control groups,the cells of target gene groups presented typically changes of proliferation inhibition and apoptotic morphology,which occurred obviously in co-transfection group.The results of MTT assay showed that at 48 h and 72 h post-transfection,the profiferation-inhibiting rates in the group of cells co-transfected with IL-24 and DCN were (31.88±6.57) ％ and (36.83±3.76) ％,respectively,displaying significant difference with those of other groups (P ＜ 0.01).The results of flow cytometry showed that IL-24 and DCN can induce HepG2 cells apoptosis to some extent.Compared to the early apoptosis rate of cells of control groups,plasmid (2.98±0.72) ％,blank cell (3.50±0.92) ％,IL-24 (20.01±1.08) ％ and DCN (22.20±0.91) ％,a statistically remarkable apoptosis rate,(32.56±0.90) ％,can be seen in the group of cells treated with IL-24 and DCN jointly (P ＜ 0.01).The result of cell cycle analysis revealed that,compared to control groups,the proportion of cells was higher in the phase of G2/M in the IL-24 group (11.24±0.35) ％ and in the phase of G0/G1 in the DCN group (77.93±0.67) ％.The proportions of cells in the phases of G2/M increased to (71.36±0.60) ％ and that of G0/G1 statistically increased to (10.39±0.67) ％ in the group of cells co-transfected with IL-24 and DCN (P ＜ 0.01).Conclusions Combinatorial treatment of HepG2 cells with IL-24 and DCN can exert stronger synergistic proliferation-inhibiting effect and apoptosisinducing activity-in comparison to single therapies.IL-24 and DCN can induce cell cycle arrest on HepG2 cells,occurred in the phase of G2/M and G0/G1,respectively.Promoting effect of cell cycle arrest in the phase of both G2/M and G0/G1 can be seen on HepG2 cells co-transfected with IL-24 and DCN,which maybe the possible mechanism of the synergistic proliferation-inhibiting and apoptosis-inducing effect.

SJAMP and HLAMP are glucose-containing acidic mucopolysacc-harides isolated from sea cucumbers, Stichopus Japonicus and Holot-huria Lecospilota respectively. Their effects on the interaction of thrombin with endothelial cells were studied. Human vascular endothelial cells isolated from umbilical veins treated with 0.1% collagenasc were cultured with MEM medium. The contents of von Willebrand factor (vWF) and 6-keto-PGFla, stable hydrolysis product of PGI,, in the culture medium were measured with ELISA and immunoradioassay technique. The addition of thrombin to confluent monolayer endothelial cells resulted in a significant increase in the release of vWF and 6 ~ keto-PGFla in the culture medium. When heparin,SJAMP or HLAMP was added, no significant amount of vWF or 6~keto-PGFla could be detected in the medium .Whereas preincubation of thrombin with heparin, SJAMP or HLAMP respectively inhibited the thrombin-induced vWF and 6-keto-PGF 10 release and this effect was well correlated with the dose of heparin, SJAMP or HLAMP, indicating that SJAMP, HLAMP as well as heparin had inhibitory effect on the interaction of thrombin with endothelial cells

Objective To compare the difference in quercetin against oxidative stress response in mouse and in NIH-3T3 cells before and after H2O2 treatment,to explore the underlying mechanism for the quercetin antioxidant.Methods The cultured NIH-3T3 cells were randomly divided into 4 groups: quercetin(Q) pre-protective group(Qb) firstly treated with quercetin for 24 h followed by incubation with H2O2 for 30 min;post-protective group(Qa) treated with H2O2 for 30 min followed by incubation with quercetin for 24 h;H2O2 group(H2O2) after exposure to H2O2 for 30 min,incubated with DMEM medium and the control group(C) only cultured with DMEM medium.The survival rate and apoptotic rate were detected respectively with MTT and TUNEL in NIH-3T3 cell sus-pension samples.The expression of cyclin D1,PTEN,NF-?B,HSP-70,BCl-2,BAX and caspase-3 were examined with immunocytochemistry and immunoblotting.Besides,20 Wistar rats were divided into control group and experimental group,the latter was given with quercetin in the doze of 0.13 mmol/kg.The levels of T-AOC,SOD,GSH-Px,GSH,MDA,NOS and NO2-/NO3-were detected both in the cleaved NIH-3T3 cells and in the plasma from both experimental and control animals prior to and post-1 h,2 h and after 24 h.Results When the Qb group was compared with H2O2 or Qa group,the survival rate was higher and the apoptotic rate was lower.When the H2O2 group was compared with C group,the expression of cyclin D1、PTEN or BCl-2 was down-regulated;while that of BAX、HSP-70、NF-?B or caspase-3 was up-regulated;the level of T-AOC,SOD,GSH-Px or GSH was decreased;that of NOS、NO2-/NO3-or MDA enhanced in the cleft NIH-3T3 cells.When the plasma level of the anti-oxidative enzyme system prior to-compared with post-1h and 2h-treatment with Q,the level of T-AOC,SOD,GSH-Px and GSH,especially the former two,were higher;MDA,lower;NOS or NO2-/NO3-promoted.However,the above parameters basically became normal 24 h after treatment with Q.Conclusion Quercetin down-regulates the promoted expression of HSP70,NOS,NO2-/NO3-and NF-?B etc.in H2O2-treatment NIH-3T3 cells.Qb could reverse the H2O2 damage effects more markedly.Moreover,the quercetin exerts anti-oxidant protective effect through modulating the anti-oxidative enzyme system both in vivo and in vitro.However,based on the cell heterogeneity in none-or pre/post-H2O2-treatment state,a difference in quercetin antioxidant response is noted.

Objective To evaluate the value of ultrasound in diagnosing ductal carcinoma in situ (DCIS). Methods The sonographic characteristics of 12 DCIS which were confirmed by pathology were analyzed retrospectively. Results The ultrasound image of DCIS could be divided into four types;the solid mass nodule, mammary dysplasia, mix mass nodule, the dilated duct type. Micro calcification had high incidence rate. Ultrasonic diagnosis accordance rate was 50.0 %. On molybdenum target mammograms, the tumor appeared as a cluster of calcified spots in 8 cases, and the accuracy rate of diagnosis of was 66.7 %.Conclusion There are no typical characters of DCIS in ultrasound image. However, some characteristics are suggestive and can help to differentiate them from the benign tumors, such as small nodule, irregular shape,obscure boundary, and microcalcification. When sonography combine with molybdenum target mammography,the accuracy rate of diagnosis will be improved.

Objective To study Joint Mobilization on shoulder pain after stroke. Methods Hemiplegic patients with shoulder pain after stroke were treated with joint mobilization. The effects were determined by the simple McGill Questionnaires and Fugal-Meyer upper extremity functional score before and 30 days after treatment.Results The pain scores of the treatment group were significantly lower than that of the control group (P<0.01), the upper extremity functional scores of the treatment group were significantly higher than that of the control group (P<0.01).Conclusion Joint mobilization for hemiplegic patients with shoulder pain after stroke can significantly reduce shoulder pain and effectively improve upper extremity function.

Objective To investigate the suppression effect, the apoptosis and TGF-β_1 mRNA expression of rhDCN and dororubicin(ADM) on leukemic K562 cell line. Methods K562 cells in Logarithmic growth phase were divided into Saline group, pcDNA3.1 (+)-DCN group, ADM group, and pcDNA3.1 (+)-DCN-ADM group. Morphology change of cell was detected by Wright stain, cell proliferation activity was assessed by MTT. The apoptosis index of K562 cells was assessed by FCM, and TGF-β_1 mRNA of cell was assessed by RT-PCR. Results Wright stain showed that more pronounced morphological apoptosis changes of K562 cells in combined group. MTT method results showed that the proliferation inhibition rate of the combined group was (61±1.32) % higher than that of individual intervention group [DCN group, (20±1.90) %; ADM group, (47±1.04) %](P <0.05). FCM results showed that the apoptosis index of the combined group was (61.30± 0.9) %, higher than that of Individual intervention group [DCN group, (28.25±1.3) %; ADM group, (31.85± 1.5) %](P <0.05). TGF-β_1 mRNA synthesis of combined group was significantly decreased. Conclusion rhDCN can markedly enhance cytotoxicity of ADM on K562 cells, and the mechanisms of apoptosis may be due to down-regulation of TGF-β_1 mRNA. Specific mechanisms will be further studied.

Objective To study changes of humoral immunity of the premature infants in different pathological conditions and detect the reason of the deficiency of humoral immunity in premature infants .Methods Two hundred and forty-six prematur were enrolled and 30 healthy neonates were selected as control group .The percentages of IgG ,IgA ,IgM and comp lement C3 ,C4 were detected by full automatic biochemical analyzer .Results The results showed that IgG ,IgM ,IgA ,C3 and C4 in the premature in-fants were lower than those in the normal term infants and there was a highly significant difference with the decrease of fetal age . IgG ,IgM ,IgA ,C3 and C4 of the group of the premature infants ranging from 32 to 36 weeks had reduced in different degree ,rela-tive to the groups of BW <2 000 g ,hypertension during pregnancy ,cesarean section(P<0 .05) .Conclusion The results showed that function of humoral immunity in the premature infants was depressed and low gestational age ,low birth weight ,cesarean sec-tion and hypertension during pregnancy may be the leading cause of the deficiency of humoral immunity .

Objective To evaluate the effect of isoflurane on the apoptosis of SH-SYSY cells transfected with APPsw gene and the role of inositol 1,4,5-triphosphate (IP3) recepters.Methods The SH-SYSY ceils transfected with APPsw gene were seeded in culture flasks with the density of 1.2 × 104/cm2.The cells were randomly divided into 4 groups (n =6 each):control group (group C),IP3 receptor antagonist group (group Ⅹ),isoflurane group (group Ⅰ) and isoflurane + IP3 receptor antagonist group (group Ⅰ + Ⅹ).After the cells were cultured for 24 h and attached to the wall,the cells were cultured routinely in group C,and Xestospongin C 100 nmol/L (IP3 receptor antagonist) was added to DMEM culture medium in groups X and Ⅰ + X,and 30 min later the cells were exposed to 1.2 ％ sevoflurane for 8 h in groups Ⅰ and Ⅰ + X.The cells were collected for examination of the ultrastructure and for determination of cell apoptosis,intracellular free calcium ion concentration [Ca2 +] i (by flow cytometry) and expression of IP3 receptor protein (by Western blot).The apoptosis rate was calculated.Results Compared with group C,there was no significant change in the apoptosis rate,[Ca2 +]i or IP3 receptor protein expression in group Ⅹ (P ＞ 0.05),while the cell apoptosis rate and [Ca2 +] i were significantly increased and IP3 receptor protein expression was up-regulated in groups I and Ⅰ + Ⅹ (P ＜ 0.05 or 0.01).Compared with group Ⅰ,cell apoptosis rate and [Ca2+]i were significantly decreased and IP3 receptor protein expression was down-regulated in group Ⅰ + Ⅹ (P ＜ 0.01).The pathological changes of the cells happened in groups Ⅰ and Ⅰ + Ⅹ,and the pathological changes were severer in group Ⅰ than in group Ⅰ + Ⅹ.Conclusion Isoflurane can induce apoptosis of SH-SY5Y cells transfected with APPsw gene through increasing [Ca2+]i and up-regulating IP3 receptor protein expression.