Objective To investigate the clinical status of post-core crown in anterior teeth aesthetical restoration and to observe its effect. Methods 126 cases of anterior teeth in patients with mild deformity,restored with post-core crown after informed consent meanwhile conducted clinical follow-up observation. Results In addition to 2 cases of disease after root canal treatment, 1 incisal and labial surface of porcelain fracture, other cases achieved desired results in the way of self-satisfaction,clinical efficacy and x-ray observation and periapical films. Conclusion Post-core crown in anterior aesthetical restoration has a unique position and clinical efficacy.

Objective To analyze the CRE and UREA result of university students,and establish the refer-ence interval for CRE,UREA adapted to this university.Methods Performing serum analysis of 2 926 freshmen for CRE,UREA with the automatic biochemical analyzer ( Olympus AU400 ) .Results Reference intervals were get among freshmen as CRE:74.00-109.00μmol/L (M),59.00-85.00 μmol/L (F),and it was different between male and female(Z =-27.27,P <0.01);UREA:2.70 -6.70mmol/L (male aged 16 -24 years),1.90 -5.70mmol/L (female aged 16-24 years),2.30-6.57mmol/L (male aged >24-45 years),1.94-5.11mmol/L ( female aged 25-45 years) .Conclusion The reference intervals disaggregated by sex and age are initially estab-lished.

Background:Hepatic veno-occlusive disease( HVOD) is a disease characterized by hepatomegaly,jaundice, ascites,weight gain and lack of effective treatment currently. Our prophase research showed that ligustrazine had therapeutic effect on Sedum aizoon induced HVOD in mice. Aims:To investigate the mechanism of therapeutic effect of ligustrazine on Sedum aizoon induced HVOD in mice. Methods:A total of 115 mice were randomly divided into 4 groups:mice in group A were intragastrically administrated with 30 mg·kg-1 ·d-1 Sedum aizoon to induce HVOD and served as model group;mice in group B were given 30 mg·kg-1 ·d-1 Sedum aizoon + 100 mg·kg-1 ·d-1 ligustrazine and served as low dose ligustrazine intervention group;mice in group C were given 30 mg·kg-1 ·d-1 Sedum aizoon + 200 mg·kg-1 ·d-1 ligustrazine and served as high dose ligustrazine intervention group;mice in group D were given 30 mg·kg-1 ·d-1 PBS and served as normal control group. After 30 days,all the mice were sacrificed. HE staining and Masson staining were performed for histological examination. The mRNA and protein expressions of tissue factor(TF),nuclear factor(NF)-κBp65 and early growth response factor( Egr)-1 in liver tissue were determined by RT-PCR and Western blotting, respectively. Results:HE staining and Masson staining histological examination showed that ligustrazine could obviously ameliorate the pathological injury of liver tissue in HVOD mice. Compared with group D,the mRNA and protein expressions of TF,NF-κBp65,Egr-1 were significantly increased in group A( P < 0. 05). After intervention with ligustrazine,the mRNA and protein expressions of TF,NF-κBp65,Egr-1 were significantly decreased( P < 0. 05), especially in group C,and no significant differences were found between group C and group D(P > 0. 05). Conclusions:Ligustrazine has therapeutic effect on HVOD,the possible mechanism is that ligustrazine could interrupt the activation of coagulation system by reducing the expression of TF via down regulating the expressions of NF-κBp65 and Egr-1,especially in high dose ligustrazine group.

Objective:To investigate the effect and mechanism of donor-Ag specific T cell vaccination on inducing specific immune tolerance of allogenic liver transplantation and the mechanism of immune privilege of liver transplantation .Methods:CBA mice were recipients,B6 mice were donors,T cell vaccination (TCV) were made from the attenuated spleen cells of CBA mice ,which were stimulated by Con A and were challenged with the spleen cells of B 6 mice.There are 3 groups in this experiment:Transplant control group:Orthotopic liver transplantation ( OLT) were performed with the recipients of CBA mice and donors of B 6 mice;Flt3-L treating group:OLT were performed with the recipients of CBA mice and donors of B 6 mice treated with Flt3-L;TCV group:OLT were performed with the recipients of CBA mice inoculated with TCV and donors of B 6 mice treated with Flt3-L.Median survival time (MST) of liver grafts was recorded, IL-4, IL-10 and IFN-γin peripheral blood were tested after transplantation in each group .One-way mixed lymphocyte reaction ( MLR) were carried out with effectors of spleen cells from CBA mice and stimulator of spleen cells from B 6 mice at the 5th day after transplantation.The apoptosis of liver graft infiltrating cells (GICs) were analyzed by flow cytometric analysis at the 5th day after transplantation.Results: Flt3-L treating donor activated allogenic acute rejecting reaction , TCV vaccinating recipient before and after transplantation significantly depressed the acute immune rejecting reaction mediated by Flt 3-L.The liver grafts were accepted by recipient without the presence of Flt 3-L.The cytokines test show that the serum value of IL-4 and IL-10 were increased in Transplant control group and TCV group ,but decreased in Flt3-L treating group.The value of IFN-γwas increased in Flt3-L treating.

Objective To assess the quality of randomized controlled trials (RCTs) of delirium prevention of elderly published in China.Methods The literatures from China National Knowledge Infrastructure(CNKI),WANFANG Data and VIP Database for Chinese Technical Periodicals were evaluated according to Cochrane collaboration's tool for assessing risk of bias and Jadad scale.Results A total of 53 RCTs were included,14 (26.4％,14/53) described radom number table used to generate the random allocation sequence,4 (7.5％,4/53) conducted experiments in a blinded manner,7 (13.2％,7/53) did not use intentionto-treat to analyse those who did not complete the study,9 (17.0％,9/53) had high risk of other bias,none described allocation concealment mechanism and blinding to participants and intercention implementers.Based on Jadad scales,the score was 1-4,average score was (2.3±0.8),19 (35.8％,19/53) were high-quality literatures.Conclusions The quality of present published literatures is not high,the further domestic studies should be designed high-quality to better improve clinical practice.

An α-amylase inhibitor (α-AI) was isolated from white kidney beans (Phaseolus vulgaris. L) by ethanol fractional precipitation, ion exchange chromatography and gel filtration column chromatography. It was a homogeneity glycoprotein demonstrated by SDS-PAGE and gel filtration on CL-6B. The glycoprotein contained 88.2% protein and was rich in aspartic acid, glutamic acid, leucine, threonine and serine. The carbohydrate moiety was consisted of Man, Glc, Gal and Xyl in a mole ratio of 2.42∶1.50∶1.52∶1.00. The glycan and the core protein backbone was connected by O-linkage as determined by β-elimination reaction. The continuous oral administration of the α-AI (150 mg·kg-1·d-1 ) for 7 days can lower fasting blood glucose and 300 mg·kg-1 ·d-1 α-AI for 7 days can improve the sugar tolerance on alloxan-dependent diabetic model rats. The result showed the α-AI obtained from white kidney beans had good hypoglycemic effect on alloxan induced diabetic rats and may have high potential pharmaceutical value as a regulative digestive-starch degradation in patients suffering from diabetes.

OBJECTIVE To investigate whether it is essential to utilize prophylactic antibiotics in patients with gynecologic surgery type Ⅰincision.METHODS Antibiotics were applied prophylactically to 112 patients in the study group,while 101 cases in the control group were treated without antibiotics.The postoperative infection rate,the hemogram,the incision healing rate,the duration in hospital,hospital fees and so on were analyzed.RESULTS The postoperative infection rate,the incision healing rate and other items were compared in the two groups.No significant difference was found ststistically.CONCLUSIONS Prophylactic antibiotics are not necessery in patients with gynecologic operation type Ⅰ incision during perioperative periods.

Objective To observe the effect of serum containing Qingluo Tongbi Granula (QTG) on proliferation of fibroblast-like synoviocytes(FLS) and receptor activator of nuclear factor-?B ligand (RANKL) expression in FLS from patients with rheumatoid arthritis.Methods Synovial specimens obtained from the joint of patients were minced into small pieces for the culture of FLS.The morphological features of FLS subcultrued for 3～5 generations were observed under inverted microscope and electron microscope.The effect of QTG-containing serum on the proliferation of FLS was examined by MTT assay.The expression of RANKL in FLS was assessed by RT-PCR.Results After cocultured by serum containing large-dose QTG for 72 hours,proliferation of FLS and expression of RANKL were inhibited.Conclusion QTG can inhibit FLS proliferation,and reduce the expression of RANKL,which may be one of the therapeutic mechanisms of QTG for rheumatoid arthritis.

Objective To construct a lentiviral vector carrying rat sirt1 gene and observe the expression of sirt1 in retinal ganglion cell (RGC) of rat.Methods Rat sirt1 cDNA was inserted into pLV5 vector.After identification by sequencing analysis and PCR,the recombinant sirt1expressinglentivirus vector was packaged by cotransfecting 293T cells with packaged plasmid.Then pLV5-sirt1 was used to infect the cultured Sprague-Dawley rat RGC cell in vitro.The expressions of sirt1 protein and mRNA in infected rat RGC were detected by quantitative real-time PCR and Western blot.Results The sirt1 expression vector pLV5 was successful constructed and sequence was proved to be correct.The expression of sirt1 protein and mRNA in RGC was significantly increased than that in cells infected with control lentiviruses (P ＜ 0.05).Conclusion We have successful constructed a sirt1 expression lentivirus vector pLV5-sirt1 and it can increase the expression of sirt1 protein and mRNA in the rat retinal ganglion cells.

Objective To confirm the correlation between general information、physical functioning and delirium among elderly patients in medical units by systematic review and meta-analysis. Methods With strictly designed search strategies, electronic databases as follows: CBM, CNKI, VIP, WanFang, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Embase, MEDLINE, MEDLINEIn-Process & Other Non-Indexed Citations(OVID), PsycInFo, CINAHL (EBSCO), SCI(Web of Science)were searched dated from the database building to October 2015.Two researchers confirmed the included studies according to the inclusion and exclusion criteria, evaluated the methodological quality of studies and extracted data independently. The Revman 5.3 was used for data analysis. Results (1) Age:results reported indichotomous,combined OR=2.57 (95％CI:1.69-3.89), P<0.00001;results reported in continuous,combined MD=2.67 (95％CI:1.57-3.77), P< 0.01.(2) Male:OR=1.34 (95％CI:0.91-1.97),P=0.14;inverse variance, OR=1.11(95％CI:0.95-1.30), P=0.20. (3)Activities of daily living: OR=2.66 (95％CI:1.90-3.70),P< 0.01. (4)Vision impairment: combined OR=2.31 (95％CI:1.24-4.32), P = 0.009.(5) Physical restraints: OR=6.60(95％CI:4.22-10.31), P < 0.01. Conclusions Physical restraintsis correlative with delirium among elderly patients in medical units. Age, vision impairment, activity of daily living may be correlative with delirium among elderly patients. We suggest to pay attention to those factors to implement delirium prevention, treatment and nursing to reduce the incidence and improve clinical outcomes for elderly patients.