Objective:To examine the effect of acid etching time on the bonding interface of non-carious cervical sclerotic dentin. Methods: Twenty extracted premolars with non-carious cervical lesions were randomly divided into two groups, the lesion surface was conditioned with Scotchbond Multi-Purpose Plus dentin bonding system. The etching time was 15 s and 30 s respectively. The bonding interface ultra-structures were compared with SEM. Results:In sclerotic dentin (15 s) , the hybrid layer was visible, with minimal resin tags in the dentinal tubules and, when presented, they were shorter. Doubling the etching time (30s) resulted in more resin tags with an hybrid layer formation on peritubular dentin. Conclusion: Doubling the etching time improved the ultrastructure of sclerotic dentin-resin bonding interface, and could be an efficient way to improve the bonding effect.

OBJECTIVE:To investigate the protective effect of Compound ginkgo leaf granules on liver function damage of acute pancreatitis. METHODS:Totally 82 patients with severe acute pancreatitis(SAP)complicated with liver function damage se-lected from our hospital during Sept. 2013-Sept. 2015 were randomized into control group and observation group according to ran-dom number table,with 41 cases in each group. Control group was given SAP related routine therapy. On the basis of the control group,observation group was additionally given Compound ginkgo leaf granules 5 g added into warm boiled water 80 mL via naso-gastric tube,tid,one week as a treatment course,for 2 courses. The remission time of abdominal pain,serum amylase recovery time,length of hospital stay and adverse drug reactions were observed in 2 groups. The levels of serum amylase,ALT,TBIL, AST,γ-GT,ALB,IL-6,TNF-α,creotoxin concentration,MDA,SOD,GSH-Px,total antioxidant capacity(TAC)and peripher-al blood PMN NF-κB levels were determined in 2 groups before and after treatment. RESULTS:In control group,3 patients with-drew from the study and 38 patients completed the study;in observation group,6 patients withdrew from the study and 35 patients completed the study. The remission time of abdominal pain,recovery time of serum amylase and the length of hospital stay in obser-vation group were significantly shorter than control group,with statistical significance (P<0.05). Before treatment,there was no statistical significance in the levels of serum amylase,ALT,TBIL,AST,γ-GT,ALB,IL-6,TNF-α,creotoxin concentration, MDA,SOD,GSH-Px,TAC and NF-κB between 2 groups(P>0.05). After treatment,the levels of serum amylase,ALT,TBIL, AST,γ-GT,IL-6,TNF-α,creotoxin concentration,NF-κB and MDA in 2 groups were decreased significantly,while the levels of ALB,SOD,GSH-Px and TAC were increased significantly;the observation group was significantly lower or higher than the con-trol group,with statistically significant (P<0.05). There was no statistical significance in the incidence of ADR between 2 groups (P>0.05). CONCLUSIONS:Compound ginkgo leaf granules can significantly decrease serum amylase,protect liver function, with good safety. The mechanismmay be inhibiting the release of inflammatory factors,improving oxidative stress reactions,reduce the concentration of creotoxin and inhibiting the activity of NF-κB.

Objective To analyze the telephone follow-up response rate and related factors in lung cancer patients thus to explore the countermeasures to increase the telephone response rate.Methods One thousand six hundred and eight post-surgery lung cancer patients were followed up by telephone interview,calculate response rates and analyze the impact factors on response rates of surgical patients. Results The lung cancer patients' overall response rate of one thousand six hundred and eight cases was 83.1%.Reservation phone type, phone number,family history of cancer are major factors affecting lung cancer patients' telephone followed up response rate(P<0.05). Conclusions Telephone follow-up of patients with lung cancer response rates is at a low level.To improve tumor response rates of follow-up and follow-up quality is a long and arduous task,requiring medical personnel continue to learn professional knowledge,summing up a reasonable follow-up methods,but also needing patients and their families to understand and cooperate.

Objective To investigate the association of occupational stress,social support,type D personality and physical health of nurses.Methods Cross-sectional study design was adopted.We used cluster sampling to investigate 1 287 nurses serving in one tertiary hospital and two second-class hospitals in Guangzhou.The questionnaire was anonymous answered.The content of questionnaire included the demographic data,occupational stress of nurses,social support,type D personality and physical health,etc.SPSS 13.0 was used for statistical analysis,including descriptive analysis,Pearson correlation analysis and path analysis.Results 1 192 of questionnaires were effective.The occupational stress was negatively related with the physical health status and social supports,and social support was positively related with the physical health status.The type D personality was negatively related with social supports and the physical health status,while positively related with occupational stress.Conclusions Occupational stress can make directly negative effect on the physical health.Social support has a directly protective effect on physical health.Type D personality makes direct and indirect negative effect on the physical health of nurses.

Objective To probe into the status and development trend of ebola,so as to provide reference for further research.Methods This paper took the ebola literature as the object of study,took GoPubMed as the retrieval and statistical tool,and conducted information analysis of the subjects,time,sources,distribution,authors and literature development trends of ebola research.Results The main subjects of ebola literature involved ebola virus and hemorrhagic fever,ebola.There has been a sharp increase on the literature number of ebola in the recent two years,particularly in 2014.The majority of literature came from the United States,and Britain ranked the second.The sources of ebola literature were mainly the SCI journals published in the United States and British.Conclusions GoPubMed can provide a vivid picture of the current situation and development trend of ebola research.Further improvements are needed both in the quality and quantity of ebola research in China.

Objective To investigate the nutrition status and quality of life(QOL)in the perioperative patients with laryngeal cancer and to analyze the effect of nutrition status on quality of life.Methods Sixty-six patients with laryngeal cancer were surveyed respectively by self-designed general situation questionnaire,nutritional risk srcreening 2002(NRS2002)and European organization for research and treatment of cancer quality of life core questionnaire(EORTC QLQ-C30).The impact of nutritional status on QOL was analyzed by the multiple linear regression analysis.Results The total score of nutritional risk of perioperative patients with laryngeal cancer was 3.53±1.51 and the incidence of nutritional risk was 28.79%.The nutrition status influenced on QOL, physiological function,cognitive function and pain area(P<0.05).Conclusion Nurses should assess the nutritional status of the patients and correct malnutrition without delay in order to improve the physical function and QOL of the patients.

Objective:To examine the ultrastructure of resin-infiltrated sclerotic dentine following the application of an all-in-one self-etch dentin adhesive. Methods:Naturally-occurring, non-carious cervical sclerotic lesions on 10 extracted premolars were bonded using an all-in-one self-etch dentin adhesive(Adper Prompt L-Pop,3M ESPE, St Paul, USA).Artificially prepared wedge-shaped lesions were also made in 10 extracted sound premolars and restored using the same adhesive as the controls. The morphological change of dentin surface conditioned by the adhesive and the dentin-resin interface were studied by SEM.Results:Most dentinal tubules were obliterated by rod-like sclerotic casts in the non-carious cervical lesion, the sclerotic casts could not be totally dissolved by the self-etch adhesive. After restoration the resin tags were fewer and shorter in sclerotic dentin than those in sound dentin.Conclusions:Bonding to sclerotic dentin is different from that to sound dentin, and may be compromised by the fewer resin tags.

Objective To survey the compliance degree of patients with allergic rhinitis completing their specific desensitizing therapy and to evaluate the relating factors with this compliance degree, and to explore the nursing countermeasures. Methods A retrospective study was carried out in 186 patients with allergic rhinitis receiving specific immunotherapy from January 2007 to December 2008. Noncompliance patients were contacted with scheduled telephone interviews to investigate the causes. Results Compliance rate was 71.0%,primary reason for non-compliance is poor efficacy (16 patients, 29.6% ), followed by busy work or study (10 patients, 18.5%) and disappearance of symptoms (7 patiens, 13.0%). Conclusions The compliance degree of AR patients receiving specific desensitizing therapy is still poor, but the reasons for non-compliance can be controlled by many factors, compliance is still much room for improvement.

Objective: To examine the ultrastructure of resin-infiltrated sclerotic dentine following the application of a three-step total-etching dentin adhesive. Methods: Naturally-occurring, non-carious cervical lesions on extracted premolars were bonded using a total-etching dentin adhesive-Scotchbond Multi-purpose. Artificially prepared wedge-shaped lesions were also made in sound premolars and restored using the same adhesive as control. The morphological change of the dentin surface conditioned with the etchant, and the hybrid zone and resin tags in the dentin-resin interface were studied by SEM . Results: Most dentinal tubules were obliterated by rod-like sclerotic casts in the non-carious cervical lesion, and could not be dissolved by Scotchbond Multi-purpose etchant.Both the hybrid zone and resin tags were observed in sclerotic dentin after restoration, although the resin tags were fewer and in lack of communications, the length of resin tags and the thickness of the hybrid zone were almost similar to those of the sound dentin. Conclusion: Bonding to sclerotic dentin is different from sound dentin, and may be compromised by the fewer resin tags and communications.

Objective To probe into the status and development trend of avian influenza,so as to provide reference for further research.Methods The article took the avian influenza literature as the object of study,took Gopubmed as the retrieval and statistical tool,made information analysis of the subjects,time,sources,distribution,authors and literature development trends of avian influenza research.Results The main subjects of avian influenza literature involved influenza in birds and influenza,human.There has been a sharp increase on the literature number of avian influenza in the recent decade with the most in 2006.The United States accounted for the most literature and China ranked the second place.The sources of avian influenza literature were mainly the SCI journals from the United States and European countries.Conclusions Gopubmed can show a vivid picture of the current situation and development trend of avian influenza research.Further improvements are needed both in the quality and quantity of avian influenza research in China