Many tumorigenesis in human are closely linked to the functional loss of P53. The tumor-suppressive functions of P53 are abrogated by mutations, but in 50% of all tumors it remains wild type. In these cases, loss of P53 tumor-suppressive function mainly results from the abnormal methylation of 5' CpG islands of tumor suppressor genes such as INK4a, ARF and ASPP. Restoring to normal methylation state of these genes might provide a new strategy for tumor therapy.

Many tumorigenesis in human are closely linked to the functional loss of P53. The tumor-suppressive functions of P53 are abrogated by mutations,but in 50% of all tumors it remains wild type. In these cases,loss of P53 tumor-suppressive function mainly results from the abnormal methylation of 5' CpG islands of tumor suppressor genes such as INK4a,ARF and ASPP. Restoring to normal methylation state of these genes might provide a new strategy for tumor therapy.

Objective To measure core competence of nurses by expert investigation in order to set nursing undergraduate core curriculums which matches nurse core competence.Methods 162 experts were followed with questionnaire survey and data were analyzed using cluster sampling method.Results Experts suggested that 18 core curriculums played an important role in raising nurse core competence.Conclusions Expert opinions about raising nurse core competence and offering nursing undergraduate core curriculum are intensive,study results are credible extremely,and the study offers objective evidence for making the civil standards of undergraduate nursing education.

Objective To investigate the protective effect of magnesium isoglycyrrhizinate on the liver of hepatic arterial chemoembolization.Methods 68 patients with hepatic arterial chemoembolization were selected as research subjects,they were divided into magnesium isoglycyrrhizinate group and control group.All patients were routinely given hepatoprotective drug treatment from seven days before surgery until three days after surgery,magnesium isoglycyrrhizinate group was given magnesium isoglycyrrhizinate treatment on the basis of hepatoprotective treatment. Detected and compared the alanine aminotransferase,aspartate aminotransferase,total bilirubin,total protein,albumin and cholinesterase levels before and after liver cancer before and after surgery.Results The alanine aminotrans-ferase,aspartate aminotransferase levels at 3 days after surgery[(60.2 ±25.8)and (71.5 ±29.6)IU /L]were higher than before surgery in the control group[(34.7 ±18.6)and (49.5 ±20.4)IU /L](t =7.264 and 5.974,all P <0.05).The alanine aminotransferase,aspartate aminotransferase levels at 3 days after surgery had no differences with before surgery in the magnesium isoglycyrrhizinate group (P >0.05).The alanine aminotransferase,aspartate amin-otransferase and total bilirubin levels before surgery in magnesium isoglycyrrhizinate group had no differences with the control group (P >0.05).The alanine aminotransferase,aspartate aminotransferase levels at 3 days after surgery in the magnesium isoglycyrrhizinate group[(44.8 ±22.8)and (57.3 ±24.8)IU /L]were higher than those in the control group[(60.2 ±25.8)and (71.5 ±29.6)IU /L](t =6.385 and 7.358,all P <0.05).The albumin and cholinesterase levels at 3 days after surgery in the magnesium isoglycyrrhizinate group and the control group[(28.4 ± 4.7)g/L,(8.0 ±4.8)kU /L and (29.3 ±3.5)g/L,(6.9 ±4.3)kU /L]were lower than before surgery[(34.2 ± 4.3)g/L,(9.3 ±5.4)kU /L and (33.7 ±3.9)g/L,(9.0 ±5.8)kU /L](t =11.834,6.247 and 10.276,8.743,all P <0.05).The albumin and cholinesterase levels before surgery in the magnesium isoglycyrrhizinate group had no differences with the control group (P >0.05).The albumin and cholinesterase levels at 3 days after surgery in the magnesium isoglycyrrhizinate group[(28.4 ±4.7)g/L,(8.0 ±4.8)kU /L]were lower than those of control group [(29.3 ±3.5 )g/L,(6.9 ±4.3)kU /L](t =8.436 and 6.947,all P <0.05 ).The incidence rates of adverse reactions of the magnesium isoglycyrrhizinate group (upper abdominal pain incidence rate was 35.3%,fever incidence rate was 29.4%,nausea and vomiting incidence rate was 52.9%)were lower than those of the control group(55.9%,88.2%,76.5%)(χ2 =7.246,6.472,6.274,all P <0.05).Conclusion Hepatic arterial chemoem-bolization has some damage to liver function of liver cancer patients.Magnesium isoglycyrrhizinate can reduce liver damage,improve liver synthetic function,and has a protective effect on liver.

Objective To explore the diagnostic value of CT for the vegetable stone disease in the stomach,esophagus and small intestine.Methods The clinical data and CT findings of 27 cases confirmed by endoscopy or surgery were analyzed retrospectively. Among 27 cases,6 cases performed contrast-enhanced scan.Results Among 27 cases,18 cases were the gastrolithiasis,6 cases were the intestinal stone disease,1 case was the esophagus stone disease,and 2 cases were the multiple stones of stomach and small intestine.CT missed 7 cases and misdiagnosed 1 case with the rate of missed diagnosis was 25.93%.The lesions were cylindrical or oval shape with mixed density in 27 cases,distinct boundary in 26 cases,sclerotic margin in 22 cases,ethmoid or honeycomb bub-bles in the lesion in 25 cases,no enhancement in 6 cases,and complicated small bowel obstruction in 8 cases on CT images.Conclu-sion The phytobezoars in the stomach,esophagus and small intestine have typical CT findings.Careful analyses can improve its di-agnostic accuracy.

Objective Toinvestigate the relationship between red blood cell volume distribution width (RDW) and acute coronary syndrome (ACS),and the correlation between RDW and degree of coronary artery stenosis. Methods A total of 221patients accepting coronary angiography were involved as ACS group and another 50 patients also accepting coronary angiography as normal control group. ACS group wasfurther divided into unstable angina (UA) group of 77 cases and acute myocardial infarction (AMI) group of 144 cases ,then their level of RDW was detected. According to Gensini score ,we divided the 221 positive cases of coronary angiography into ≤ 30 point group ,31-60 point group and > 60 point group and their level of RDW was detected. Results The level of RDW in ACS group(13.02 ± 0.68)was significantly higher than that innormal control group(12.62 ± 0.38),and the difference was statisticallysignificant(P < 0.05). And the difference between UA group(12.84 ± 0.68)and AMI group(13.12 ± 0.66)also showed statistical significance(P < 0.05). With the increase of Gensini score ,the level of RDW was also increased ,and the difference between each two groups was statistically significant (P < 0.05) except that between control group and ≤ 30 point group. Conclusions The level of RDW in ACS group and AMI group is significantly higher ,suggesting that RDW may be involved in the pathogenesis of acute coronary syndrome ,and the RDW level could be a potential indicator of ACS. RDW level is closely related to the severity of coronary stenosis and could be one of its predictors.

AIM: To investigate the effect of ligustrazine (Lig) on cerebral injury in LPS-induced septic shock rats and to explore the underlying mechanism.METHODS: Wistar rats (n =48) were randomly divided into control group, LPS group and LPS +Lig treatment group.The rats in LPS group were randomly divided into 2 subgroups at time points of 6 h and 12 h.After ligustrazine treatment, the venous blood was collected by removal of eyeballs to detect the con-centration of neuron-specific enolase (NSE) using ELISA.The nitric oxide (NO) concentration in the homogenate of brain tissues was examined.The apoptosis in the hippocampus was analyzed by TUNEL staining.The protein expression of Bax and Bcl-2 was determined by Western blot.RESULTS: Ligustrazine inhibited the elevation of NSE and NO concentrations in LPS-induced septic shock rats.Furthermore, ligustrazine administration also attenuated LPS-induced increase in Bax ex-pression and decrease in Bcl-2 expression.CONCLUSION: Ligustrazine decreases the concentration of NSE and NO, and attenuates cerebral injury in LPS-induced septic shock rats.These effects may be related to the regulation of Bax and Bcl-2 expression.

Objective To investigate the effects of ZEB1 (Zinc finger E-box binding homeobox 1) gene knockdown on proliferation, cell cycle and apoptosis of human adipose-derived mesenchymal stem cells (hADSCs).Methods Primary mesenchymal stem cells were obtained from human adipose tissue by collagenase digestion and identified by immunological phenotype and differentiation potential of osteogenic and adipogenic lineages .The siRNA was trans-fected into hADSCs by lipofectamine 2000 .The expression of ZEB 1 and key proliferation , cell cycle and apoptosis-related genes were detected by real-time PCR and Western blot at mRNA and protein level respectively .The cell proliferation capacity was assessed by MTS .The apoptosis and cell cycle of hADSCs were evaluated by flow cytome-try.Results The ZEB1 expression at mRNA and protein level was significantly decreased in si-ZEB1 transfection cells as compared to transfection with si-NC.Inhibition of ZEB1 decreased the cell proliferation ability , and signifi-cantly inhibited the expression of cell proliferation related genes, including CCND1, MKI67, MYC and PCNA.After transfection with si-ZEB1 , the percentage of cells in G1 phase increased from 50.17% to 58.94%, and S phase and G2 phase decreased by 6.16% and 2.07% separately.Meanwhile, the apoptosis rate increased by 10.2%, the expression of apoptosis related genes TP53 and BAX was up-regulated , and the expression of anti-ap-optotic genes MCL1 and BCL2 was down-regulated in si-ZEB1 transfection cells as compared to transfection with si-NC.Conclusions ZEB1 may play an important role in promoting hADSCs proliferation , cell cycle progression and inhibit their apoptosis .

Objective:To investigate the effect of estrogen on the expression and distribution of IL-1 in the remodeling osteoporotic alveolar bone.Methods:Ovariectomy was performed on 30 female SD rats and sham operation on 15(control group).When osteoporosis was developed in the 30 ovary-removed rats,the left maxillary molars of all the rats were extracted.On the following day 15 of them were treated with intramuscular estrogen injection at 20 ?g/kg once every 3 days(treatment group).Another 15 rats with ovary removed received no treatment(osteoporosis group).7,30 and 60 days after teeth extraction 5 rats were killed respectively in each group.IL-1 expression in alveolar bone was examined immunohistochemically,and semiquantitative analysis of cellular-staining intensity was done by microphotometry.Results:The positive IL-1 expression were mainly located in the osteoclasts,vascular endothelial cells and fibroblasts.7 days after teeth extraction the cellular-staining intensity of IL-1 in control group,osteoporosis group and treatment group was 0.11?0.019,0.36?0.038 and 0.18?0.025 respectively(control or treatment group vs osteoporosis group,P

Enterovirus A71 (EV-A71) causes hand, foot, and mouth disease (HFMD) and various neurological complications, including aseptic meningitis and neurogenic pulmonary edema in young children. HFMD caused by EV-A71 have broken out several times in the Asia-Pacific region since 2007. And it has been a serious threat to public health. There is no effective vaccine or antiviral drug. The pathogenesis of EV-A71 infection is unknown, and EV-A71 3C protein plays an irreplaceable role in replication and anti - innate immunity. Further research on EV-A71 3C protein is conducive to understand the pathogenesis of EV-A71 infection and antiviral drug.
Animals ; Antiviral Agents ; pharmacology ; Enterovirus ; drug effects ; immunology ; metabolism ; physiology ; Humans ; Immunity, Innate ; Viral Proteins ; chemistry ; genetics ; metabolism ; Virus Replication ; drug effects