Objective: To observe the synergetic effect of folic acid and genistein on apoptosis in the early stage of neuron and its possible mechanism. Methods: Cyclophosphamide was added to primary cultured neurons to induce apoptosis. Three different dosages of folic acid and genistein were used to inhibit apoptosis. The results were observed by flow cytometry and scanning electron microscopy (SEM). Results: 1.Folic acid and genistein might play a role in early stages of neuron apoptosis, and the synergetic effect was demonstrated when folic acid and genistein were administered together. 2. The membrane changes in early stages of neuron apoptosis observed by scanning electron microscope were also in agreement with the flow cytometry data. Conclusion: Genistein might reinforce the protective effect of folic acid on neural tube defects by restraining the apoptosis of the early stage of neuron.

Calcaneus ; injuries ; surgery ; Fracture Fixation, Internal ; Fractures, Bone ; surgery ; Humans

Objective To evaluate the effect of different education models on the self care ability of peripherally inserted central catheters (PICC) placement patients.Methods The randomized controlled trial (RCT),controlled clinical trail (CCT),self-controlled trial and cohort study on self care ability of patients with PICC placement were collected using databases by manual and Internet searching.Data were analyzed with Revman5.0 software,data which could not be gathered were expressed by descriptive analysis.Results Eight articles were included in the study.The results of Meta-analysis revealed that different education models could significantly improve the self care ability of PICC patients in the intervention (experimental) group.Conclusions Different education models had significant meaning on the self care ability of PICC placement patients.

Objective To study the effect of curcumin on the expression of inflammatory factors in model rats with chronic prostatitis/chronic pelvic pain syndrome(CP/CPPS) type Ⅲ.Methods The rats were randomly divided into following groups: sham-operated group(sham), CP/CPPS model group(model), curcumin 50 mg group(cur-50 mg) and curcumin 100 mg group(cur-100 mg) and p38 inhibitor group(SB203580).Drug was given to each treatment group for 12 days by intraperitoneal injection.The levels of TNF-α, p38, COX-2 mRNA was measured by Real-Time PCR.The expressions of TNF-α and COX-2 proteins were measured by immunohistochemistry.The levels of p38, p-p38 and NF-κB proteins were detected by Western blot.Results NF-κB, p-p38, TNF-α, COX-2 proteins and TNF-α, p38, COX-2 mRNA in model group were higher than those in the sham group (P<0.01);cur-100 mg group and SB203580 group could significantly relieve these change in the model group (P<0.01);COX-2 mRNA and protein in cur-100 mg group decreased more than that in SB203580 group;p-p38 was positively correlated with NF-κB in curcumin groups and SB203580 group compared with model group (P<0.01).Conclusions Curcumin can reduce the expression of inflammatory cytokines NF-κB, TNF-α, COX-2 and p-p38 in rats with CP/CPPS type Ⅲ.

Objective To use the colloidal gold immunochromatography (GICA ) method to conduct the methodological prelimi-nary evaluation on pepsinogen Ⅰ (PGI) reagent kit .Methods The method provide by the Preliminary Evaluation of Clinical Quan-titative Experimental Methods :Approval Guide Second Edition (EP10-A2) formulated according to the Clinical Laboratory Stand-ards Institute (CLSI) was used to continuously detect the low ,moderate and high concentrations of serum for 5 d ,Then the related data were collected for analyzing the dispersion degree ,linearity ,offset ,precision and so on .Results The PGⅠ quality control ser-um (concentration 25 ,50 ,100 μg/L) was detected at low ,medium and high concentration levels ,the linear regression equation ob-tained by analysis was Y=0 .9939X+0 .7433 ,correlation coefficient (R2 )=0 .9992 ;the offsets were 0 .37 ,0 .77 ,0 .78 μg/L re-spectively ,total imprecision was 3 .04% ,1 .17% and 1 .08% respectively .Conclusion The GICA related technical indicators of PGⅠreagent kit reach the standards of EP10-A2 document ,the detection results are accurate with high sensitivity and good stability , and conform to the requirements of clinical applications .

Purpose To detect the expression of insulin-like growth factor-ⅡmRNA-binding protein 3 (IMP3) in preeclampsia (PE) placentas. Methods The levels of IMP3 expression were measured using immunohistochemistry in 8 cases of mild PE, 41 cases of se-vere PE, 6 cases of fetal growth restrict ( FGR) without PE and 22 cases of normal late trimester of pregnancy placentas. Results Compared with normal late trimester of pregnancy, the expression of IMP3 was obviously decreased in severe PE placenta ( Z =-2. 063,P<0. 05), decreased in mild PE (Z= -1. 31,P>0. 05). The expression of IMP3 in severe PE placenta was lower than that of mild PE placenta but not statistically significant (Z= -0. 233,P>0. 05). The expression of IMP3 in early onset PE placenta was lower than that of late onset PE placenta but not statistically significant(Z= -0. 108,P>0. 05). Compared with normal late tri-mester of pregnancy, the expression of IMP3 was significantly decreased in PE with FGR placenta (Z= -2. 375,P <0. 05), de-creased in FGR without PE and PE without FGR (Z= -1. 225,P>0. 05, Z= -1. 36,P>0. 05). Conclusion The results indicate that IMP3 protein expression is low in sever PE, which may be one of the pathogenesis of PE. IMP3 may be used as a marker to predict PE with FGR, and to provide a basis for the development of a novel therapeutic target in PE.

Object To investigate the effect of PPARαactivation on PPARγ-induced fatty liver in the mouse. Methods Wild type mice ( C57BL/6) aged 4 to 5 weeks were used as animal models.All mice were divided into four groups.The mice in the first group were fed with chow diet.The mice in the second group were fed with a diet containing 0.125%Wy-14,643, an agonist of PPARa, for 8 days.The mice in the third group were injected with Ad/PPARγvia tail vein for 5 day.The mice in the fourth group were firstly fed with Wy-14,643 diet for 3 days and then injected with Ad/PPARγvia tail vein for another 5 day.Mouse livers were collected and photographed.The effect of PPARαactivation on PPARγ-induced fatty liver was observed by H&E and Oil red O staining.Results Compared with the controls, wild-type mice treated with Wy-14,643 for 8 days exhibited marked hypertrophy of hepatocytes with increased cytoplasmic eosinophil-ia and proliferation of peroxisomes.The liver size was significantly increased in the wild-type mice treated with Ad/PPARγfor 5 days, and over-expression of PPARγstrongly induced hepatic steatosis.Importantly, the wild-type mice pretreated with Wy-14,643 for 3 days and then given Ad/PPARγinjection exhibited dramatically the increase of liver size, which might be due to the dual function of PPARa and PPARγ.Compared with the Ad/PPARγgroup, the Wy-14,643 pretreat-ment group showed a reduced hepatic steatosis.Conclusions Activation of PPARαby Wy-14,643 effectively improves PPARγ-stimulated hepatic steatosis, which provides a novel target for prevention and therapy of fatty liver.

Objective To investigate the distribution of two single nucleotide polymorphism(SNP)-717A/G and-390C/A/T-within the C reactive protein(CRP)promoter region in ethnic Han Chinese and the association with coronary heart disease(CHD).Methods Altogether positive CHD patients and negative controls were studies in this study.The two target fragments were amplied by PCR.Then the-717A/G polymorphism was screened by restriction fragment length polymorphism(RFLP)and the-390C/A/T polymorphism by Sequence Specific PCR(SSP).At last,the association was studied by proper statistical analysis.Results There was no significant difference in the distribution of-717A/G polymorphism betweenpatients and controls.However,the frequencies of allels in-390C/A/T polymorphismwere significant different between them(P

Objective To study the prenatal genetic diagnostic methods for hemophilia A fetus.Methods From 2002 to 2006,19 hemophilia A families were diagnosed either by long distance-polymerase chain reaction(LD-PCR)for factor Ⅷ intron 22 inversion or by the DNA polymorphism genetic linkage analysis of factorⅧin the Beijing Chaoyang Hospital.Results (1)Totally 19 women,with 22pregnancies received the prenatal diagnosis of fetal hemophilia A.The average week at diagnosis was 23(17-34)weeks.All the direct fetal blood sampling(DFBS)were successful.There was no fetal-loss caused by the procedures.(2)Of the 19 hemophilia A families,14 appeared to be factorⅧintron 22inversion,in which 16 prenatal diagnoses were done,10 fetuses were diagnosed as genetical hemophilia A patients,and 6 fetuses were normal.(3)Using combined polymorphism genetic linkage analysis 6 prenatal diagnoses were done,including one woman's two pregnancies,in which both her fetuses were diagnosed as genetical hemophilia A patients.(4)Factor Ⅷ levels of 16 fetuses were measured,and 6 fetuses were unmeasured either because the pregnancy weeks were lower than 20 weeks or the parents refused.Factor Ⅷlevel ranged from 0 to 198%.There were 11 fetuses whose factor Ⅷ levels were lower than 10%.Ten of them were diagnosed to be genetical hemophilia A patients,and in only one boy the factorⅧlevel was 2%,but the genetic diagnosis was normal and for one year's follow up he was doing normal.Conclusion LDPCR combined with polymorphism genetic linkage analysis enables a quick and correct detection ofhemophilia A carrier.For a carrier pregnancy.prenatal diagnosis could be done for the male fetus.Factor Ⅷ deficiency of the fetus could help make the diagnosis but the final diagnosis should be based on genetic evidence.

Objective To study the difference of image quality and radiation dose between different exposure modes with full-field digital mammography (FFDM).Methods The Fluke18-220mammographic phantom was exposed by FFDM system with different exposure modes at automatic exposure control ( AEC ) ,including contrast mode,standard mode and dose mode,and the exposure factors and radiation dose were recorded.The images on monitor with the best window width and window level were read by four independent radiologists.The images of specks groups,nylon fibers and masses was assessed by the four experienced readers at the criterion of American College of Radiology.Results The detection of specks groups,nylon fibers and masses were statistically different at the contrast mode and standard mode (F =41.321,P ＜ 0.05),further at the contrast mode and dose mode.The detection of specks groups、nylon fibers and masses were not statistically different( P ＞ 0.05 ) at standard mode and dose mode,but the radiation doses were different.The ESD at standard mode and dose mode was 4.5 and 3.15 mGy,respectively.The AGD of standard mode and dose mode was 1.18 mGy and 0.78 mGy,respectively.Conclusions The standard mode and dose mode of FFDM might be fit for most patients,especially at the dose mode.Contrast mode of FFDM should be strictly controled in use.