Objective:To explore the multiple meditation effects of hope and coping style between social sup-port and life satisfaction. Methods:Totally 381 left-behind children (191 boys,190 girls;234 from primary school, 147 from junior middle school)aged 10-15 years were selected. They were assessed with the Social Support Rat-ing Scale (SRSS),Children's Hope Scale (CHS),Simplified Coping Style Questionnaire (SCSQ)and Satisfaction with Life Scale (SWLS ). The relationship among these factors was analyzed by structural equation modeling. Results:The total scores of SRSS,CHS and SWLS were positively correlated with the scores of positive coping style(r=0. 28 -0. 43,P<0. 01 )and negatively correlated with the scores of negative coping style(r=-0. 19--0. 14,P<0. 01). Path analysis showed that social support had indirect effects on life satisfaction of left-behind children through the mediation of hope,positive coping and negative coping style(RMSEA=0. 03,GFI=0. 99,NNFI=0. 98). Bootstrap test showed that 95% confidence interval of mediation effects was 0. 002-0. 348, and the multiple meditational effects were significant. Conclusion:It suggests that hope,positive coping and nega-tive coping style might play a multiple mediation effects on the relationship between social support and life satisfac-tion.

Ischemia reperfusion injury (IRI) is a multistep pathophysiological process involving a complex of multi-factors.To alleviate the IRI is of great importance in clinical liver transplantation,especially for marginal donor livers.This article overviewed the protective strategies and the latest progress for alleviation of IRI in three stages of liver transplantation,which includes liver procurement,preservation and reperfusion.

Objective To evaluate the early outcome of off-pump total arterial revascularization using bilateral IMA with "Y" manner. Methods Between Oct.2002 to Aug.2004, 52 patients underwent off-pump coronary artery bypass grafting (OPCABG) using bi-IMA. The mean age was 56 (33-78) years. Triple vessel disease was in 42 (80%) patients. The free right IMA was anastomosed to the in-sitr left IMA, composed “Y” graft. LIMA anastomosed sequentially to the diagonal branch and LAD and RIMA were sequentially to the ramus, obtuse marginal and PDA. Results There was no 30-day death. 171 grafts were constructed and the mean number of grafts per patient was 3.3. Peri-operation MI occurred in 2 patients, temporary IABP in one. There were no sternal wound infection and strode. Conclusion Off-pump total arterial revascularization using bilateral IMA with "Y" manner is secure and feasible.

Rheumatoid arthritis(RA),a systemic,inflammatory autoimmune disorder characterized by inflammation of the lining or synovium of the joints,is a complex polygenic disease with a complicated inheritance mode.Both genetic and environmental factors determine the development and progression of RA.Study on susceptible genes of RA provides a theoretic basis for clinical diagnosis and treatment.As a novel high-throughput screening method,genome-wide association study(GWAS) is a powerful approach for mapping susceptible genes of polygenic disease like RA.GWAS can not only verify the well-established susceptible loci,but also identify novel genetic loci candidates.Great improvement has been made in using GWAS to screen for novel genes,which casts new lights on the mechanism and treatment of RA.This review summarizes the progress in using GWAS for screening of RA susceptible genes.

On the basis of reviewing the significance of retrieval teaching and scientific research integration and the research situation at home and abroad,the paper proposes the undergraduate teaching optimization plan of literature information retrieval of Traditional Chinese Medicine (TCM) teaching integrated with scientific research,points out that the teaching design should focus on the cultivation of scientific research ability,the teaching process advocates the efficient and rich communication form based on the students,and the course assessment should establish multi-dimensional evaluation system.

Cell-based therapy and regenerative medicine offer a paradigm shift in regard to various diseases causing tissue or organ damage.Recently,many authors have focused their atte(n)tion on adipose-derived mesenchymal stem cells (ADMSCs) for their capacity to differentiate into many cell lineages.Acute kidney injury (AKI),as a common emergency,has high morbidity rate and relatively limited treatment.This review will summarize the mechanism of ADMSCs in treatment of acute kidney injury,and hope to lay a foundation for future research.

The paper introduces the research significance of Traditional Chinese Medicine ( TCM) literature information retrieval based on cognition analysis, by analyzing cognition of literature information demands of TCM students in different majors of Liaoning University of Traditional Chinese Medicine, it studies from three perspectives:literature information retrieval demand, retrieval thinking and development direction of TCM literature information retrieval system.It also points out that study on thinking and practice of literature information retriev-al based on cognition analysis is the effective approach to enhance information literacy and improve the comprehensive quality.

Astemizole is nitrasoted with sodium nitrite in 0.12 mo l/L HAc solution at boiling bath for 25 min. The nitrosation product of astemizo le shows a reduction peak by single-sweep oscillopolarography. The peak potenti al is -0.72V (vs.Ag/AgCl). The first-order derivative peak current is propo rtional to the concentration of astemizole in the range of 4.0×10-7～1.6 ×10-5 mol/L (r=0.9997), with detection limit of 2.0×10-7 mol/L . The proposed method has been applied to the determination of astemizole in pha rmaceutical tablets.

Objective To investigate clinical features of microscopic colitis (MC) in the elderly and short-term effect of mesalamine on MC.Methods Totally 116 elderly patients with MC in our hospital were recruited from January 2011 to December 2011.Clinical manifestations,use of MC related drugs (MCRDs),pathological classifications and short-term effect of mesalazine were collected and analyzed.Results MC patients accounted for 27.6 ％ in elderly patients with chronic diarrhea,who presented with mild to middle watery or mucous stool,and only 1.7％ of MC patients accompanied with severe stomach pain.Collagenous colitis (CC) and lymphocytic enteritis (LC) accounted for 31.9％ and 68.1％,respectively in MC patients and 50％ of them had MCRDs taking history.There was a significant difference in short-term effective rate between CC group and LC group at 4 weeks after mesalazine treatment (64.9％ vs.84.8％,x2 =5.929,P=0.015).The effective rate was significantly related with the relief of pathology in LC group (x2 =5.896,P=0.015).The relapse rate had no significant difference between CC group and LC group at 8 weeks after withdrawal of mesalazine treatment (45.8％ vs.34.3 ％,P =0.317).Conclusions MC may be one of the main reasons leading to chronic diarrhea in the elderly.Mesalazine has a better effect for the short-term treatment of MC in the elderly,but the long-term maintenance therapy still needs further study.

Objective To investigate the causes,diagnosis,treatment of the difficult postoperative decannulation resulting from tracheotomy between children and adults and the method of improving the rate of successful decannulation.Methods Clinical data of 56 cases with difficult decannulation after tracheotomy were analysed retrospectively,all the patients were admitted in our hospital between Jan 1990 and Oct 2006.All the patients were separated into two groups,children group including 24 cases of 14 months ～ 14 years old,adult group including 32 cases of age ranging 15 ～ 48 years old.The postoperative time after tracheotomy were 6 month ～ 1.5 year and 6 month ～ 2 year respectively.Results There were differences of the etiology,diagnostic choice and the clinical manifestation in the treatment of the diffficult decannulation after tracheotomy between children and adults.Children with difficult decannulation after tracheotomy occurred mainly in laryngitis and airway foreign body airway caused by obstruction retrieved after tracheotomy (14/24,58.33 ％),followed by the emergency tracheotomy,such as head and neck trauma (7/24,29.17％).Adults with difficult decannulation after tracheotomy mainly occurred in the throat caused by traumatic lesions of the larynx (including malformations,subglottic stenosis of larynx or vocal cord paralysis) (23/32,71.88％).The average block time in children with anti-inflammatory treatment was significantly lower than that in without anti-inflammatory therapy (6.2 d vs 10.1 d,t =4.26,P ＜ 0.01).However,there was no significant difference in the average block time in adults with anti-inflammatory and without anti-inflammatory treatment (t =1.63,P ＞ 0.05).In the course of treatment,rates of children consciously breathing difficulties (21/21,100％) was also significantly higher than the adult group (13/28,46.43％).Conclusion Children less than 3 years old should avoid tracheotomy.There is no definite relation between the successful treatment in the difficult decannulation and the age of the patients over 3 years old.The first failure treatment in children may be related with the local inflammation.When in treatment,doctors should observe the characteristics of respiratory difficulties,take attention to the influence of children psychological factors to the treatment.Children should be treated in the non-traumatic examination methods.