Ten ATP binding cassette (ABC) transporters are confirmed to be associated with resistance against anticancer drugs. To investigate the relationship between these ten ABC transporters and the nasopharyngeal carcinoma cell line CNE2 resistant to cisplatin, cisplatin and cisplatin with 5-fluorouracil were used to induce the CNE2 cell to acquire the drug-resistance for 1 year. After these cells were cultured without drugs for 2 months, the MTT assay method was used to determine the dose-effect relationship of cisplatin and resistant index. Quantitative real time polymerase chain reaction was used to detect the mRNA expression of ten ABC transporters in CNE2 and the drug-resistant CNE2 cells, and the result was confirmed by immunocytochemical method. The results of MTT method showed that two cell lines resistant to cisplatin (named as CNE2/DDP) and cisplatin with 5-fluorouracil (named as CNE2/DDP+5Fu) were established, with resistant index 2.58 and 5.31, respectively. Of ten ABC transporters, only ABCC2 was found to be up-regulated both in CNE2/DDP and CNE2/DDP+5Fu cells, for increasing about 2.50 and 4.08 folds, respectively. The results of immunocytochemical method also confirmedthat the expression of ABCC2 in CNE2/DDP and CNE2/DDP+5Fu cells were stronger that that in CNE2 cell. Furthermore, ABCC2 protein was found to be located at nuclear membrane of CNE2/DDP +5Fu cell but not at nuclear membrane of CNE2 cell. The results suggest that ABCC2 may play an important role in cisplatinresistance of nasopharyngeal carcinoma cell line CNE2.

Objective:To analyze the progress of the contracting service model in community health centers in the typical areas in China, and provide empirical evidence for the hierarchical system targeted to make first contact and orderly dual transfer. Methods: Purposive sampling was adopted. Twelve community health centers in Beijing, Shanghai , Zhengzhou and Chengdu areas where the general practitioner model was conducted earlier and set to be the representative one, were selected as the field survey sites. A thematic framework analysis was used to describe the key factors around the contacting service model. Results:This model was developed around the following key factors:using the general practice team as the main service provider, taking the patients with chronic diseases as the main contracting groups and extending to their family members with the number of contracted ranging around 1500~2000 , freely providing both essential public health and medical services, fully using the family physician room as the con-tracting service platform and highlighting the actively serving concept, building the financial and non-financial incen-tives, health insurance benefits and green transfer mechanisms in order to efficiently guarantee the contracting service development. Conclusions: Based on the information platform, the contracting service model in the sample sites played a great role in the appointment and referral services development as well as the self-health management among residents, improving the relationship between physicians and patients, and promoting the formation of orderly health service pursuing pattern.

Objective: To observe clinical efficacy of oral folic acid (FA) intervene in hyper-homocysteinemia (HHcy) patients combining coronary artery disease (CAD) and heart failure (HF), to study the effect of blood level of Hcy on cardiac function. Methods: A total of 126 relevant patients with blood level of Hcy>15 μmol/L were randomly divided into 2 groups:Routine group, the patients received anti-platelet therapy, statins, beta-blockers, diuretics, angiotensin converting enzyme inhibitor (ACEI) or angiotensin II receptor antagonist and FA group, in addition to above mentioned therapies, the patients also received FA 5 mg/day. n=63 in each group and all patients were treated for 3 months. Fasting blood levels of Hcy, BNP and left ventricular end diastolic diameter (LVEDD), left ventricular ejection fraction (LVEF), 6-minute walk test (6MWT) were compared between 2 groups at pre- and 3 months post-treatment. Results: ① Based on NYHA classification, the patients with cardiac function at II, III, IV had accordingly increased blood levels of Hcy, BNP and LVEDD, while decreased LVEF and 6MWT, all P<0.05. ② Blood levels of Hcy were positively related to BNP (r=0.733, P<0.001) and LVEDD (r=0.511, P<0.001), negatively related to LVEF (r=-0.382, P<0.001) and 6MWT (r=-0.410, P<0.001). ③ With 3 months treatment, FA group and Routine group showed decreased Hcy level as (8.43 ± 1.87) μmol/L vs (3.29 ±1.68) μmol/L and BNP (891.84 ± 456.10) pg/ml vs (682.24 ± 463.79) pg/ml, reduced LVEDD (4.33 ± 1.231) mm vs (2.06 ± 1.73) mm, while elevated LVEF (6.59 ± 2.28) % vs (2.52 ± 2.37) % and 6MWT (142.97 ± 55.15) m vs (86.35 ± 59.06) m, all P<0.05. Conclusion: Increased blood level of Hcy is risky for HF occurrence, FA may treat HHcy and further improve the cardiac structure and function in HF patients.

Objective: To explore the utilization and effects of informatization in perfecting the community health service mode. Method:Through purposive sampling, 12 community health service centers in Beijing, Shang-hai, Chengdu, and Zhengzhou were selected for site investigation. The heads of the health administrative department and community health service centers were interviewed, with a focus on the construction and utilization of the local community health informatization and a discussion of the role of informatization in perfecting the community health service mode. Results:The information systems can be divided into core systems, core auxiliary systems, and periph-eral support systems. Informatization provides strong support to perfecting the community health service mode in opti-mizing the service process, improving work efficiency, strengthening institutional cooperation, promoting quality regu-lation, optimizing performance appraisal, and strengthening doctor-patient interaction. Conclusion: Informatization plays a key role in perfecting the community health service mode. Recommendations were proposed to strengthen community health informatization construction and utilization:optimizing service processes, promoting the efficient co-ordination of safe health services, optimizing performance appraisals, and strengthening doctor-patient interaction.

Objective:To analyze the concerning guarantee mechanisms during the transformation of the com-munity health service mode. Method:Purposive sampling was adopted. Twelve community health service centers in Beijing, Shanghai, Zhengzhou, and Chengdu, where the transformation of the community health service mode was pi-loted earlier and representative, were selected as the field survey sites. The qualitative method was used to collect da-ta accompanied by the quantitative method. Results: The guarantee mechanisms related to the transformation of the community health service mode could be concluded into four main types:collaboration mechanism, health profession-al training mechanism, incentive mechanism, and policy guarantee mechanism. All of the four mechanisms contribu-ted to the improvement of general teamwork, dual referral systems, and the development of contract and appointment services. Conclusion:During the transformation of the community health service mode, priority strategies include top-down design, health professional training mechanisms, and performance-based incentive mechanism, all of which should be implemented in the future.

Objective:To analyze the structure modes of general practice teams in community health care cen-ters in order to provide empirical evidence for the transformation of the community health service mode. Method:Pur-posive sampling was adopted. Twelve community health service centers in Beijing, Shanghai, Zhengzhou and Cheng-du, where the transformation of the community health service mode was piloted earlier and representative, were se-lected as the field survey sites. The qualitative method was used to collect the data accompanied by the quantitative method. Results:The structure models of general practice teams could be divided into four types:1) general practi-tioner+nurse+nurse assistant+pharmacist, 2) physician (general practitioner, herbalist physician) +nurse+com-munity volunteers, 3 ) physician ( general practitioner/herbalist physician ) +nurse +assistant +community volun-teers, and 4) general practitioner+nurse+assisting team (professionals of public health and maternal care, etc) +supportive team ( pharmacists, health technician, etc) . Conclusion:The paper verified the common sense conclusion that general practitioners should play an essential role in general practice teamwork. The four general practice team models analyzed above positively contributed to the improvement of efficiency and quality, the relationship between health professionals and patients, the promotion of community participation, and the combination between preventive care and clinical care.

Objective:To study the chronic disease management’s key factors in community health service insti-tution based on the Innovative Care for Chronic Conditions Framework ( ICCC ) . Methods: The purposive sampling method was adopted. Twelve community health service centers were selected as the field survey sites in Beijing, Shanghai, Zhengzhou and Chengdu. During the key factors description at macro-, meso-and micro-level in the IC-CC framework, thematic framework analysis was used to describe the key factors at maro-, meso-and micro level in the ICCC framework. Results:From the community health institutions’ perspective, the key factors at meso level in the ICCC framework played a better role in the management of chronic conditions while the key factors in both macro and micro level still lacked. Conclusion:Based on the ICCC framework, the management of chronic diseases needs to emphasize the cooperation with relevant departments outside the health area and legislative strategies at macro level, the ability of community supporters to mobilize and coordinate resources at meso level and the improvement of self-management skills for the patients with chronic diseases.

Objective: On the basis of typical cases, the objective of this study is to assess the service quality of primary healthcare institutions under the vertically integrated model from the perspective of demanding side.Methods: The vertical model between Renhe Hospital and Lixian Township Health Center was selected as the case study.Quantitative data were collected by exit review using Primary health-Care quality service Assessment Tool (PCAT)-Chinese version from the patients seeking services in Lixian.Quantitative data were analyzed by descriptive statistics and multiple linear regression equations while qualitative data were analyzed by thematic framework analysis.Results: Under the vertical model, the PCAT total score was 20.09.The scores on the first diagnosis, continuity of care, and comprehensiveness of care and coordination of care were 6.59, 3.27, 4.58 and 5.62 respectively.The scores on the three dimensional extensions, family-centered, community-oriented, medical culture were 3.07, 1.86 and 2.67 respectively.The difference was significant for the PCAT total score between a number of visits and the length of waiting time for services in Lixian.Conclusions: Under the vertical model, primary healthcare institutions did better in the first diagnosis while weaker in continuity and the three dimensional extensions.With the development of the integration, the primary healthcare institutions need to strengthen the continuity and downward referral in the future.Future researches and follow-up, analysis is needed to track the impact of the vertically integrated model.

Purpose To study the value of contrast-enhanced ultrasound (CEUS) quantitative technique in evaluating the perfusion of hepatic microcirculation in acute hemorrhagic shock (HS),and to investigate the value of CEUS quantitative analysis in HS diagnosis and treatment.Materials and Methods Sixty healthy adult New Zealand white rabbits of either gender were randomly divided into three groups for establishing mild,moderate and severe HS models,respectively.Before modeling and 30 min after stable modeling,liver CEUS examination was performed,and the original images were stored.Blood test of lactic acid,liver function,and liver biopsy for pathological examination were conducted after CEUS.Finally,the arrival time (AT),time to peak (TTP),rising time (RT),peak intensity (PI) and area under the curve (AUC) were analyzed offiine.Results Compared with pre-modeling,AUC decreased in mild HS group (P＜0.05);TTP and RT were delayed,but PI and AUC decreased in moderate and severe HS groups (all P＜0.05);AT was delayed in severe HS group (P＜0.05).The differences of TTP,RT,PI and AUC between the groups of mild,moderate and severe HS were significant (P＜0.05).Compared with pre-modeling,lactic acid in three HS groups increased significantly,the liver function indexes were changed to different degrees,and the degree of liver cell pathological changes was closely related to the degree of HS.Conclusion CEUS can quantitatively evaluate the changes of hepatic microcirculation induced by HS at different degrees.

Pttrpose Contrast-enhanced ultrasound (CEUS) is a noninvasive technique that can monitor the blood perfusion of organs.The study aims to discuss the value of CEUS in quantitative analysis of renal microcirculation during resuscitation after hemorrhagic shock (HS).Materials and Methods Forty healthy New Zealand white rabbits were randomly divided into five groups in this prospective study.One group was selected as normal control group (T1),the other four groups were established HS model by using the modified Wiggers's method;one of the four HS groups was taken as shock group (T2),and the other three HS groups were named as 2 h group (T3),6 h group (T4),and 24 h group (T5) according to resuscitation time.CEUS was used to observe the rabbits' renal perfusion and the perfusion parameters were recorded including amplitude of peak intensity (A),time to peak (TTP),area under curve (AUC) and curve rising slope rate (Grad);the correlation of these parameters with histological examination was analyzed.Results Compared with T1 group,The TTP ofT2 group prolonged and the A,AUC and Grad decreased (P＜0.05);the HS model was established successfully.Compared with T2 group,the A,AUC and Grad of T3,T4 groups increased (P＜0.05),but the TTP of T3,T4 groups was not shortened (P＞0.05).The above parameters were all significantly different between T5 group and T2 group (P＜0.05),but the differences did not exist between T5 and T1 groups (P＞0.05),which indicated that the perfusion parameters gradually returned to normal level after resuscitation.The histological staining demonstrated that the renal tubular epithelial cell swelling and vascular congestion gradually restored after resuscitation.Conclusion CEUS can quantitatively assess renal perfusion changes during resuscitation as a noninvasive monitor.