37 free second molar residual crowns were repaired by glass fiber post and resin core(GF group),and another 37 by cobalt chromium alloy casting post and core(CCA group).The success rate of 1 ~5 years of GF group was 1 00%,1 00%,91 .9%,86.5% and 81 .1 %;that of CCA group 97.3%,91 .9%,83.8%,81 .1 % and 73.0%,respectively(P >0.05).

Objective:To explore the anticoagulant strategies during perioperative period for the patients with long-term anticoagu-lation therapy to show the important role of clinical pharmacist in drug treatment. Methods:The anticoagulant regimen during the peri-operative period participated by clinical pharmacists for one patient with long-term use of warfarin was reviewed, and combined with the related literatures, the drug choice, the administration time, dosage and treatment course were analyzed. Results: The clinical phar-macists could optimize the anticoagulant regimen by using the pharmacokinetic knowledge to decrease the risk of hemorrhage and embol-ism to the largest extent. Conclusion:During the perioperative period, warfarin should be withdrawn at least 5 days before the opera-tion, and the international normalize ratio ( INR) should be monitored. After the operation and no further bleeding, low molecular weight heparin combined with warfarin can be used in 12h, and INR should be monitored. Low molecular weight heparin can be with-drawn till the standard is reached. If the patient undergoes operation for many times, low molecular weight heparin is suggested to be used for anticoagulation during the whole operation period.

Objective To explore the deficit features of verbal working memory of dyslexia children by comparing with normal children. Methods Seventeen normal children and fifteen dyslexia children finished the classic verbal n-back task which involved three memory updating difficulty levels. Results Dyslexia children ((81.7±7.0)%,(70.8±12.0)%,(60.0±7.0)%)performed worse than NC ((88. 6 ±6. 0)% , (83. 5 ± 7.0)% ,(75.6 ±9.0)%)in all memory updating levels(n = 0,1 ,2) (P<0.01). In the performances related to memory updating operating,when the difficulty of the updating rised dyslexia children(25. 9 ± 12. 0)% revealed greater decline than normal children(14.2 ± 12.0)% (P<0.01). Conclusion Dyslexia children demonstrate the deficit in the basic level of working memory, which was showed as the bad performance of n-back task in updating level zero, and also they had problems in memory updating,which was showed as the greater updating effect. Memory updating was regarded as the advanced procession of verbal working memory.

Objective:To observe the expression of PCNA and morphological changes of submandibular gland of db/db mutant diabetic mice. Methods:Fifty C57BL/Ksj-db/+m mice were randomly divided into 2 groups, db/db diabetic group and control group. The morphological changes of submandibular gland and the expression of PCNA were observed by using light microscope (LM) and immunohistochemistry. Results:Submandibular gland atrophy and the significant morphological changes in acini and ducts were observed in db/db diabetic mice. PCNA was expressed in submandibular gland in both diabetic mice and control mice.The percentage of PCNA positive cells was significantly decreased in diabetic mice than that in control(P

Objective To detect the mutation frequency and mutation type of tumor suppressor PTEN in sporadic breast carcinoma tissues, and to investigate the association of PTEN gene mutation and sporadic breast cancer. Methods Polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) was used to amplify 9 exons of PTEN and to analyze the conformation polymorphism, then DNA sequencing methods was used to detect point mutation of PTEN gene nine exons of abnormal single strand conformation in breast carcinoma. Results One of 45 cases showed 24th condon A→C missense mutation in the exon2 of PTEN gene, and this mutation made Met to change to Ala in PTEN protein structure. Conclusion These data indicated the existence of PTEN mutation in sporadic breast cancer, but PTEN gene mutation rate is very low.

Objective To investigate the expression of tumor suppressor gene PTEN in breast carcinomas and its significance. Methods Immunohistochemical method was used to detect the expression of PTEN gene in 146 cases of breast carcinoma and 10 specimens of normal breast tissue closely adjacent to carcinoma. Results It was showed that PTEN gene was expressed in all 10 specimens of breast tissue closely adjacent to carcinoma. Expression of PTEN was localized in cytoplasm and nuclei of epithelial cells of lobular acini and epithelial cells of ducts. The rate of PTEN expression was 57.5% (84/146) in breast carcinoma. Expression of PTEN was related to tumor size, pathological stage, and the expression of ER and PR of breast cancer. The 2-year disease free survival of PTEN high expression breast cancer patients was superior to those with low expression (P

Objective To explore the clinical significance of changes of monocyte chemoattractant protein-1(MCP-1) in patients with pregnancy induced hypertension(PIH).Methods The MCP-1 levels of urine and blood were measured by enzyme linked immunosorbent assay(ELISA) in 96 patients with PIH and 49 normal pregnant women.Results The MCP-1 levels in blood and urine in patients with PIH were significantly higher than those in normal pregnant women,and were associated with the severity of the disease.The urine MCP-1 level was positively correlated with the levels of ?_2-microglobulin(?_2-MG),N-acety1-?-D-glucosaminidase(NAG),interleukin-6(IL-6) and retinal-binding protein(RBP),and was negatively correlated with creatinine clearance rate(Ccr).Conclusion The detection of MCP-1 is useful for examining the severity of PIH and the degree of renal injury.

A higher school wants to possess a highlight status in the international educational market,it must launch an attack actively,compete and grab market,anneal ourselves to boost up competition.So,to drive the lasting development of foreign medical students' education in our school,we must progress with time,and deepen reform.

41 cases of infant thrush in observation group were treated by 10% rhubarb decoction wipe on the affected area followed by pow-dered “alum 3 +goldthread 2 +borneol 1”coating;41 cases in the control group were treated by 1% ~2% baking soda scrub on the affect-ed area followed by glycerol wipe containing 50 000 to 100 000 units/ml of nystatin.The efficiency was 95.12%(39 /41)and 75.61%(31 /41)in observation and control groups respectively(P <0.05).The external use of chinese medicine is effective in the treatment of in-fant thrush.

Objective To establish chronic sleep deprivation mouse model,evaluate the learning and memory ability of mice and observe autophagy and apoptosis levels in mouse brain.Methods C57BL/6 mice (n =20) were randomly separated into sleep deprivation group and control group.After 2-month sleep deprivation by using an adapted multiple platform method,the behavioral performance of mice was measured by IntelliCage system.The expression of microtubule associated protein 1 light chain 3-Ⅱ (LC3-Ⅱ) and Beclin-1 was detected by Western blotting.Confocol microscopy was used to observe autophagosome.In addition,terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) staining was performed to detect neuronal apoptosis level in mouse brain.Results The results of behavioral test showed that the incorrect visit ratio was much higher in sleep deprivation group than that in control group.Moreover,the expression of LC3-Ⅱ (sleep deprivation group 1.681 ± 0.186,control group 1.125 ±0.048,t =2.892,P =0.027 6) and Beclin-1 (sleep deprivation group 1.144 ±0.048,control group 1.006 ± 0.017,t =2.721,P =0.018 6) in mouse hippocampus and cortex was significantly elevated in sleep deprivation group than those in control group.Accordingly,the confocal microscopy observation also revealed an increased nuclear LC3-positive puncta in hippocampus and cortex of sleep deprived mice (hippocampus in sleep deprivation group 1.665 ± 0.153,in control group 0.819 ± 0.072,t =5.024,P =0.002 4;cortex in sleep deprivation group 1.925 ± 0.175,in control group 1.195 ± 0.111,t =3.521,P =0.012 5).In addition,TUNEL staining showed a much higher percentage of TUNEL-positive nuclei in these brain regions (hippocampus in sleep deprivation group 47.24 ± 4.15,in control group 19.26 ± 3.72,t =5.025,P =0.007 4;cortex in sleep deprivation group 42.25 ± 1.25,in control group 27.50 ± 3.23,t =4.262,P =0.005 3).Conclusions Chronic sleep deprivation can impair the learning and memory,increase the expression of LC3-Ⅱ and Beclin-1,elevate the formation of autophagosome,and promote apoptosis in mouse brain.These findings suggest that autophagy and apoptosis might be involved in the cognitive impairment induced by chronic sleep deprivation.