Porcelain laminate veneer is one of the most widely used aesthetic dentistry methods at home and abroad now.It has advantages of natural luster of natural teeth,strong abrasive resistance,strong stain resistance,and maximally tooth tissue save,etc.At present,it is widely used in the anterior teeth restoration,and related reports on clinical application of porcelain laminate veneers are increasing day by day.The paper reviews the choice of indications and contraindications,types of materials,tooth preparation methods,and adhensive materials and methods related clinical application questions.

Objective To explore the clinicopathological features,diagnosis and differential diagnosis of colonic muco-submucosal elongated polyp (CMSEP).Methods The clinical manifestations,endoscopic and histological features of three cases of CMSEP were analyzed.The literature was reviewed with regard to the diagnostic criteria and differential diagnosis.Results Three patients were male,and aged 25,45 and 75 years old.Two polyps were at transverse colon and one at rectum.Under colonoscope,all three cases showed the long pedunculated polyps.The surfaces of two polyps were smooth and the colors were similar to colonic mucosa while one polyp appeared mucosal erosion and congestion on the top.Under optical microscope,three cases had similar lesions.The axis of the lesions was expanded submucosa and the surface was the layer of colonic mucosa.The expanded and thick walled blood vessels were seen paralleled to the long axis in the submucosa of the axis of lesions.One polyp with mucosal erosion on the top presented with adenocarcinomal changes.Conclusions CMSEP is a kind of specific polypoid lesion,with characteristic colonoscopic and pathological features.Most are benign changes,however malignant changes occur in a few cases.In histology,CMSEP should be identified with mucosal prolapse syndrome associated inflammatory polyp.

Objective To investigate atorvastatin administration on osteopontin and cardiac function of patients with chronic heart failure(CHF).Methods Sixty CHF patients were randomly divided into control (30 cases) and atorvastatin groups (30 cases).Patients in control group were given regular treatment including conventional oxygen inhalation,digitalis,angiotensin converting enzyme inhibitors,β blockers,diuretics,vasodilator therapy.Patients in treatment group were given atorvastatin at dose of 20 mg/d for 2 months plus regular treatment.The NHYA cardiac function,echocardiography determination of left ventricular ejection fraction(LVEF) were recorded.The levels of plasma osteopontin,plasma N-terminal brain natriuretic peptide (NT-proBNP) and C-reactive protein (CRP) were measured.Results The levels of plasma osteopontin,NT-proBNP and CRP in atorvastatin group were (1 062.68 ± 130.63) ng/L,(609.00 ±62.39) ng/L and ((5.84 ± 0.70) mg/L respectively,lower than those of control group ((1609.94 ± 201.87) ng/L,(922.33 ± 108.68) ng/L,(8.90 ± 0.86) mg/L),and the differences were statistically significant (Z =-1.981,t =2.766,Z =-2.092,P ＜0.05).LVEF in atorvastatin group was (58.7 ± 1.2)％,higher than that in control group ((52.8 ± 1.6) ％ ; P ＜ 0.05).Conclusion Atorvastatin treatment can decrease plasma osteopontin density,alleviate the inflammatory response and inhibit cardiac remodeling in patients with heart failure,which was good for recovery of heart failure.

Objective To explore the relationship between hepatic stem cells and hematopoietic stem cells by detecting the expression of OV6 and CD34 in rat hepatic oval cells. Methods Healthy SD rat were fed with chemical carcinogen 3’-me-DAB for 4 weeks, then the rat hepatic tissue samples were obtained. The rats fed with normal forage served as normal controls. The expressions of OV6 and CD34, specific markers for oval cells and hematopoietic stem cells respectively, in rat hepatic stem cells were detected by immunocytochemical staining (ABC method). Results The oval cells positive for OV6 and CD34 were found in the limiting plate of portal area, mainly located around the Hering canal. In addition, some oval cells positive for OV6 and CD34 were found migrating to hepatic lobule, scattering in the hepatic cords. A great many mononuclear stem cells positive for OV6 and CD34 were also found in the hepatic parenchyma. Conclusion 3’-me-DAB could stimulate the proliferation of hepatic oval cells and hematopoietic stem cells and cause the hematopoietic stem cells derived from bone marrow to migrate to hepatic parenchyma and differentiate.

OBJECTIVE In order to prevent and control the medicine source infection,we must clean the palace cavity attraction tubes thoroughly which are repetition use,for antiseptic effect.METHODS Through carries on the sampling,monitor to this hospital′s antiseptic stream of people package of palace cavity attraction tube clean condition.RESULTS Monitoring 100,qualified 91,qualified rate 91%.CONCLUSIONS The palace cavity attraction tube clean process must conform to the standard.Namely:The preliminary clean,adds the enzyme immersion,thorough clean,distilled water flushing.Any remains in the lumen organic matter may affect the disinfection antiseptic effect.

OBJECTIVE To apply and practice the process and effect of low temperature steam formaldehyde(LTSF) sterilization for heat-sensitive goods.METHODS The heat-sensitive medical instruments were sterilized in LTSF sterilizer under the appropriate media conditions,all procedures,including preparation,packing,sterilization,unloading,storage etc were strictly in the right way.RESULTS Sterile result has been guaranteed.CONCLUSIONS LTSF is a kind of effective sterilization method for low temperature sterilization application.By this way,the quality of sterile goods has been reached,the rate of nosocomial infection has been lowered,requirements of hospital clinical departments for sterile goods also have been met.

Protein separation method is the core factor of the proteomics strategy. There are three methods for the protein separation, include two dimensional gel electrophoresis, liquid-phase electrophoresis and Mass Spectrometry, and protein-chip. In this article, the principles, processos, and development on the three separation protein methods.were reviewed.

Objective To observe the short-term effect of alprostadil combined with torasemide in the treatment of intractable heart failure.Methods Thirty cases of patients with intractable heart failure and ineffective in routine therapy were given alprostadil and torasemide treatment,with alprostadil 20 mg in 5％ glucose or 0.9％ sodium chloride solution 100 ml intravenous infusion once a day and torasemide 20-40 mg intravenous twice a day 3 days later torasemide dosage was adjusted according to the disease,and the remaining conventional anti-heart failure therapy unchanged.Course was one week.The blood pressure,body weight,urine output,creatinine,electrolytes,N-terminal pro-brain natriuretic peptide (NT-proBNP)and left ventricular ejection fraction (LVEF) before and after treatment was observed.Results After treatment,clinical symptoms of dyspnea,edema,pulmonary rales,such as wet and dry significantly improved in all patients.During the course of the treatment,3 patients appeared mild hypokalemia,and potassium was promptly corrected.Body weight after treatment reduced compared with that before treatment [(63.8 ± 7.6) kg vs.(82.6 ± 10.7) kg],urine output increased after treatment compared with that before treatment [(2 328.3 ±367.8) ml/d vs.(568.7 ± 104.6) ml/d],and the differences were statistically significant (P ＜ 0.01).Systolic blood pressure,diastohc blood pressure difference was not statistically significant after treatment,compared with that before treatment (P ＞ 0.05).LVEF after treatment increased compared with that before treatment [(44.5 ± 8.3)％ vs.(31.9 ± 10.2)％],serum creatinine levels reduced [(97.8 ± 18.6) μmol/L vs.(143.8 ±21.7) μmol/L],and the difference was statistically significant (P＜ 0.05) ; NT-proBNP after treatment reduced compared with that before treatment [(567.4 ± 212.3) ng/L vs.(2 726.5 ± 525.3) ng/L],and the difference was statistically significant(P ＜ 0.01).Conclusion Alprostadil combined with torasemide treatment can quickly and effectively improve symptoms and help improve heart and kidney function in intractable heart failure,and has no significant adverse reactions.

Objective To compare the efficacy of Si Wu particles to treat young women with chronic attachment inflammation.Methods70 young women with chronic attachment inflammation in department of gynecology from January 2015-July 2016 were grouped by Lottery method.Two groups were treated with levofloxacin and metronidazole, observation group was another given Si Wu particles.To analyze treatment efficacy between two groups.ResultsAfter treatment, total effective rate of observation group was higher than control group(P<0.05).After treatment, whole blood high-viscosity, whole blood low-viscosity and plasma viscosity of observation group were lower than control group(P<0.05).After the third week of treatment, TCM syndrome points of observation group was lower than control group (P<0.05).Adverse reactions and recurrence rate of observation group were lower than control group, but no statistical significance.ConclusionSi Wu particles can improve efficacy to young women with chronic attachment inflammation.