Objective To verify tissue factor (TF)-bearing microparticle (TF-MP) could be released from Kupffer cells (KCs) stimulated by lipopolysaccharide (LPS) and TF controlled by Toll-like receptor 4 (TLR4) could induce acute pancreatitis. Methods After the acute pancreatitis model completed, the wild type C57/BL6 mouse (WT group) and the TLR4-/- mouse (TLR4-/- group) received intraperitioneal injections of 10 mg/kg LPS. The degree of pathological lesion and the TF expression were detected in the pancreas tissue. The TF and TLR4 protein and mRNA expressions in the KCs were detected at 6, 12, and 24 h after the last injection of LPS. The survival rates were campared in these estabilshed acute pancreatitis model mice. The TF and TLR4 protein and mRNA expressions in the KCs stimulated with LPS (300 μg/L) were also detected at 0, 15, 30, 60, and 120 min. The TF and TF-MP levels were detected in the supernatants of the KCs at these time point. Results The injury of the pancreas in the TLR4-/- group was slighter than that in the WT group. The TF proteins in the liver and pancreas tissues of the TLR4-/- group were significantly lower than those of the WT group (P<0.05). The survival rate of the TLR4-/- group was significantly higher than that of the WT group under the situation of the acute pancreatitis (P<0.05). The TLR4 and TF protien and mRNA expressions of the KCs were significantly decreased in the TLR4-/- group as compared with the WT group at 30, 60, and 120 min (P<0.05). The levels of TF and TF-MP in the supernatant of the TLR4-/- group were significantly lower than those of the WT group at 30, 60, and 120 min (P<0.05). Conclusion Acute pancretitis can be induced by TF and TF-MP expressions in KCs which could be regulated by TLR4 pathway.
Objective To survey the current status of residents’ health examination in township medical units in Shuangliu county, so as to provide references for exploring the residents’ health examination mode suitable for the well-off rural hospitals, and for improving the effects of physical examination. Methods The self-designed questionnaires were made to survey the current situation of health examination for the residents in 24 township medical units in Shuangliu County, including 3 central township hospitals, 3 community health centers and 18 general township hospitals; and the outline was designed to interview the people responsible for managing and implementing the resident’s examination work. The Epidate 3.1 was used for data input, the SPSS 17.0 was used for descriptive statistics and stratified analysis, and the classification method was adopted for qualitative research of personal interview data. Results The number of primary health care units for carrying out residents’ health examination got gradually increased year by year from 2008 to 2010; and all 24 township-level medical units had already carried out that examination by 2010. But some issues still existed such as lower participation rate and ineffective utilization of the archives. Conclusion a) It is necessary to prepare well, enhance organizing, expand publicity, and increase participation rate when primary health care units carry out the health examination for residents; b) It is necessary requires to fasten the informatization construction of health archives, and to quicken the process and analysis of examination information; and c) It is advisable to constantly optimize the examination items according to exam information, to improve the qualification of medical staffs, and to fasten the construction of exam team.
Objective To survey the drug distribution status in 24 township medical units in Shuangliu county, so as to provide references to explore the drug distribution mode for well-off township hospital. Methods An outline was made to interview the relevant workers who were in charge of the rural drug distribution management in all levels of the food and drug supervision bureaus of Sichuan province, Chengdu city or Shuangliu county, the township hospitals, the village clinics, and the drug distribution enterprises. At the same time, a self-designed questionnaire was distributed to 24 county township medical units (ie, three central township hospitals, three community health centers, and 18 general township hospitals). The Epidate3.1 was used for data-inputting, and the SPSS 17.0 was used for descriptive statistics and stratified analyses. Results At present, there was only one enterprise taking responsibility of the rural drug distribution in Shuangliu county since the strategy of enterprise direct-distribution under “two nets” supervision starting iShuangliu county of Sichuan province; Township medical units; Drug distribution; Status surveyn 2003, and there was no obvious difference in distribution before and after that strategy. The general satisfaction of 24 county township medical units with the distribution enterprise was only 50%, and the satisfaction with the price and the number of drug distribution was the lowest, accounting for 37.5% and 33.3%, respectively. Conclusion The enterprise direct-distribution under the “two nets” supervision for rural drug distribution makes the drug distribution market regular and gets good social effect, but there are still the same problems such as lack of marketization, low transparency, and high drug price, so it is necessary to introduce a new competition and management mechanism to promote the new breakthrough in rural drug distribution.