DNA damage caused by chemotherapeutic drugs plays an important role in the tumor chemo- therapy.The DNA repair pathways that are activated in response to DNA damage induce resistance to chemo-therapeutic drugs or radiation and depress the effect of these agents on tumor cells.Down-regulated DNA repair capacity has shown a better effect through inducing tumor cell hypersensitivity to chemotherapeutic drugs.It has emerged as an important comprehensive approach by down-regulated expression of DNA repair genes in the treatment of cancer.

Objectives In order to discuss the effect ofShujin-Huoxue decoction combined with gradually functional exercise for the ankle fracture postoperative function recovery.MethodsA total of 60 patients with ankle joint fracture were treated by random number table method, and were divided into the observation and control groups, 30 patients in each group. The observation group was treated with the Shujin-Huoxue decoction orally and topical application and gradually functional exercise therapy; while the control group was treated with compound sodium aescinate gel for topital application combined with gradual functional exercise therapy. Two months were a course, so both groups were treated a course. The stretching and flexion angles were measured by protractor. The ankle joint function was measued by the Baird-Jackson rating scale. The clinical curative effect was evaluated.Results The total effect rate in the observation group was 90.0% (27/30) and control group was 73.3% (22/30). There was significant difference between two groups (χ2=2.004,P=0.039). After treatment, the feet stretching Angle (15.69° ± 3.02°vs. 13.50° ± 2.36°,t=6.314) and plantar flexion Angle (32.07° ± 0.34°vs. 27.95° ± 5.40°,t=10.205) in the observation group were significantly higher than those in the control group (P<0.05).Conclusions TheShujin-Huoxue decoction combined with gradually functional exercise could improve the ankle activity and the clinical curative effect.

Objective To explore the short to long term surgical outcomes and treatment experiences of esophageal atresia（EA）.Methods The clinical data of EA inpatients in our hospital from 2006 to 2009 were reviewed retrospectively.The birth weight,main associated anomalies,details of management,complications and outcomes were discussed.Main risk factors were evaluated with major prognostic classification systems.Results Totally 48 consecutive infants with EA were identified from 2006 to 2009,male 33（69%）,female 15（31%）.Mean birth weight was 2 668 g（range 1 700 g to 3 800 g）.All received primary operation.Complications included pneumonia,anastomotic leakage（16%）,tracheoesophageal fistula,incision sepsis（11%）,delayed tracheoesophageal fistula（7%）,stricture（10%）,and gastroesophageal reflux（GER）（67%）.Mortality was 12.5%,mainly due to severe pneumonia and complex cardiac anomalies.Conclusion Most patients with esophageal atresia could be cured after primary operation with excellent outcomes.The main factors for mortality were complex cardiac anomalies,aspiration and pneumonia.The main mid-term complications were GER and stricture.

Objective To retrospectively evaluate different methods (laboratory tests,liver / gallbladder ultrasound and magnetic resonance cholangiopancreatography)in differentiating biliary atresia from infant hepatitis syndrome.Methods Seventy infants with cholestatic jaundice,50 cases of biliary atresia and 20 cases of infant hepatitis syndrome were studied prospectively from January 2010 to December 2012.All cases underwent abdominal ultrasound and magnetic resonance cholangiopancreatography.The accuracy,sensitivity,specificity and predictive values of these various methods were compared.Also the laboratory parameters were statistically analyzed and compared between groups.Results Patients with BA had significantly higher GGT values at presentation [(743.5 ± 564) IU/L] compared with infants with IHS [(198.8 ± 197.8) IU/L],showing statistically significant difference (P ＜ 0.05).The sensitivity,specificity,and accuracy of the ultrasound in diagnosis of BA were 84.0％ 、100.0％ 、88.6％ respectively(P ＜ 0.05).The values for magnetic resonance cholangiopancreatography were 82.0％ 、80.0％ 、81.4％ (P ＜ 0.05).Conclusion Currently,the method of ultrasound is more reliable than MRCP for differentiating biliary atresia from infant hepatitis syndrome.

Objective Implementing the scientific research performance evaluation indicator system constructed to evaluate the situation of scientific research performance conducted by two basic Departments during the 12th Five-Year period in a general hospital.To understand the practical applicability of the scientific evaluation index system,and also propose comments and suggestions based on the comparison between assessment score and actual research situation in the departments.Methods Based on the database of scientific research management information platform,collect related research data from two basic departments of the hospital in latest five years.Using SPSS software to conduct statistical analysis on the total score of the first and two indicators,as well as the specific indicators of the three indicators,according to the performance evaluation index system and the weight built by the hospital.Results The index system can basically reflect the general information of scientific research input and output in the department,however,some indicators cannot truly reflect the index importance and the differences between the index weight is not significant,so it is necessary to make amendment based on demonstration.Conclusions Hospital should dynamically update the index system to make them match the developing strategy of the hospital,also important to combine them with research stimulation to guarantee more scientific management and better service to the research development of hospitals.

Objective Investigating and analyzing problems and influencing factors in the process of hospital-level research project management,proposing effective and feasible recommendations,and to prove a reference for hospitals administrative management development.Methods The research analyzed factors including researchers,the departments and implementation.Results Since 2005,the total funding to support research projects in the hospital-level project reached 6.345 million yuan,the pass rate in middle-term examination was 84.94％ and was 71.81％ in final examination,with the majority of them were senior researchers.Conclusions Problems founded in this study includes the participate rate was low inyoung and middle-aged researchers,the quality of hospital-level research is also low,lack of research time,and the research outcome is not satisfied.We suggest strengthen the management of the research process,improve the mechanism of scientific rewards and punishments,integrate the disciplines resources,and improve the quality of hospital-level research project.

Objective:To evaluate the therapeutic effect of 177Lu-prostate specific membrane antigen (PSMA)-I&T on prostate cancer. Methods:The culture medium of 1.85, 18.50, 185.00, 555.00 and 925.00 MBq/L 177Lu-PSMA-I&T was added into LNCaP cells (200 μl/well, 5 experimental groups and 1 control group, 3 replicates in each group) for 24 h, and the cell viability in each group was detected. The culture medium of 3.7 MBq 177Lu-PSMA-I&T was added into LNCaP cells (1 experimental group, 1 control group, 3 replicates in each group) for 48 h to detect the changes of cell cycle. LNCaP cells (3 experimental groups and 1 control group, 3 replicates in each group) were added into the culture medium of 3.7, 19.5 and 37.0 MBq 177Lu-PSMA-I&T for 48 h to detect cell apoptosis. Tumor-bearing mice models were established (BALB/c-nu/nu nude mice, n=32). The changes of tumor volume and body mass of tumor-bearing mice were observed within 20 d after treatment. On the 7th day after treatment, tumor tissues of tumor-bearing mice were stained with HE staining and fluorescently stained with Ki-67 protein, and apoptosis was detected by TdT-mediated dUTP nick end labeling (TUNEL) assay. On the 20th day after treatment, pathological analysis was performed on the main viscera of the tumor-bearing mice. One-way analysis of variance, the least significant difference t test and paired t test were used to analyze the data. Results:Compared with the control group ((100.00±12.35)%), the cell survival rates were significantly decreased after 177Lu-PSMA-I&T intervention in 185.00, 555.00, 925.00 MBq/L groups ((57.56±6.35)%, (38.65±3.39)%, (27.95±4.48)%; F=78.91, t values: 8.312-14.106, all P<0.01). Cell survival rates were significantly reduced in 185.00 MBq/L group at different time points (24, 48 and 72 h; F=78.28, t values: 6.628-14.384, all P<0.01). The proportion of LNCaP cells in G2/M phase was increased from (12.36±0.28)% to (19.92±0.48)% ( t=17.180, P<0.01). The apoptosis rates of cells were significantly increased in 18.5 and 37.0 MBq groups ( F=71.86, t values: -6.138, -13.050, both P<0.05). The difference of relative tumor volume (RTV%) was statistically significant among 3.7, 14.8 and 29.6 MBq groups and control group (136.7±7.4, 59.2±23.8, 47.3±13.8 vs 240.3±3.7; F=78.20, t values: 7.549-13.345, all P<0.01). But there was no significant difference in body mass of tumor-bearing mice among groups. Compared with the control group, the positive rates of Ki-67 staining cells ((37.23±3.04)% vs (14.89±3.80)%, (5.60±1.83)%, (3.46±0.71)%) and TUNEL-fluorescein isothiocyanate (TUNEL-FITC) staining ((0.74±0.18)% vs (1.61±0.30)%, (3.19±0.44)%, (3.54±0.47)%) in tumor tissues of 3.7, 14.8 and 29.6 MBq groups were statistically significant ( F=103.91, t values: 10.429-15.762; F=38.66, t values: from -9.312 to -2.881, all P<0.01). Conclusions:177Lu-PSMA-I&T has a good therapeutic effect on prostate cancer, with no obvious therapeutic side effects. Therefore, 177Lu-PSMA-I&T is expected to be an ideal drug for treating prostate cancer.

Objective:To review the development and progress of geriatric research in China from the perspective of funding from the National Natural Science Foundation of China, and to provide supporting data for further development of the field.Methods:Based on project funding data of the National Natural Science Foundation of China for geriatric medicine from 2008 to 2017, the number and composition of projects, funding amount and funded institutions were statistically analyzed, and the overall trend of change was examined.The research hotspots in recent years were summarized by using word frequency analysis.Results:From 2008 to 2017, a total of 446 projects were approved in the field of geriatric medicine.Both the number of projects and the amount of funding showed an increasing trend.Project types were gradually expanded and the composition was constantly optimized.Since 2014, the fund types each year included 6 or more and breakthroughs in major projects were achieved.East China remained the leading region in the number of projects and amount of funding, with Beijing, Shanghai and Zhejiang receiving the highest numbers of project approvals and accounting for more than 10% of the national total in the number of project approvals and the amount of funding.During this period, 114 institutions received funding, with 74 winning 2 or more projects.In word frequency analysis, senescence(229 times), cell(161 times)and protein(120 times)were the three most frequently used keywords.Conclusions:In the field of geriatric medicine, the project approval level from the National Natural Science Foundation of China has significantly improved in quantity and quality, but it has always been under-represented in the branch of medical sciences.The regional and institutional distribution of projects is unbalanced and tends to skew in favor of institutions with prominent academic disciplines.Basic research is the main type of funded projects.Geriatric research is centered on the mechanisms of aging.

Objective:To develop a framework for a national system of elderly health standards in response to population aging in China and to meet the need for health service standards for elderly care, thus providing a roadmap for the development of elderly health standards.Methods:Preliminary indicators for a framework of a Chinese elderly health standards system were established by literature review and expert consultations.Using the Delphi method, we invited 23 experts to form a consultation panel.After two rounds of expert consultations, the preliminary framework was updated and the weight of each indicator was calculated by using the analytic hierarchy process.Results:A framework of the Chinese elderly health standards system was established after two rounds of expert consultations.The expert authority coefficient was 0.847.The framework proposed four primary indicators, including basic health standards, medical service standards, public health standards and social support standards, for the elderly, with a weight of 0.204, 0.346, 0.260 and 0.189 for each indicator.There were 22 secondary indicators, including standardized terminologies, medical services, health education, geriatrics personnel training, etc., for elderly care.Conclusions:Our research has generated a preliminary framework of an elderly health standards system that incorporates China's specific issues, takes into consideration of the needs of various parties and covers many relevant aspects.It will provide the basis for decision-making in the elderly health standardization process in China and safeguard the implementation of the Healthy China strategy.

The proportion of external research projects has constantly increasing in tertiary hospitals in recent years.However,compared with the government funded projects,the importance of those external research have not been recognized by both researchers and managers,and leading to various problems in project management.This article elucidates the problems and countermeasures of external research project management in tertiary hospital,with an attempt to further improve the management system and promote the overall development of the hospital scientific research.