OBJECTIVE:To recommend the development strategies for small and medium-size pharmaceutical commercial enterprises. METHODS: We analyzed the development and change of the macro-policies and industrial surroundings and discussed different strategies available for small and medium-size pharmaceutical commercial enterprises. RESULTS & CONCLUSIONS: Among those suitable strategies, which include scale enlargement, service differentiation, and countryside & community market expansion etc, small and medium enterprises should choose different kinds of strategies according to their special characteristics. Meanwhile they should incessantly enhance their real strength and spare no effort to cultivate their own competitive advantage to seek survival and development.

Objective To compare the sedative efficacy and untoward effect of dexmedetomidine and midazolam in drunken patients after general anesthesia.Methods Thirty-eight drunken patients having underwent mechanical ventilation after general anesthesia were enrolled.The patients were divided into dexmedetomidine group and midazolam group with 19 cases each according to random digital table method.The sedation onset time,dysphoria,percentage of with good sleep quality,duration of mechanical ventilation,ICU length of staying and untoward effect were compared.Results The sedation onset time and duration of mechanical ventilation in dexmedetomidine group were significantly shorter than those in midazolam group:(45.6 ±8.9) s vs.(112.5 ±20.3) s and (9.4 ±2.1) h vs.(18.6 ±5.1) h,the patients of dysphoria in dexmedetomidine group was significantly less than that in midazolam group:6 cases vs.14 cases,the patients of good sleep quality in dexmedetomidine group was significantly more than that in midazolam group:12 cases vs.4 cases,and there were statistical differences (P＜ 0.05).There was no statistical difference in ICU length of staying between 2 groups (P ＞ 0.05).The patients of bradyarrhythmia in dexmedetomidine group was significantly more than that in midazolam group:9 cases vs.2 cases,but the patients of respiratory depression in dexmedetomidine group was significantly less than that in midazolam group:4 cases vs.12 cases,and there were statistical differences (P ＜ 0.05).There were no statistical differences in delirium and hypopiesis between 2 groups (P ＞ 0.05).Conclusion Compared with midazolam,dexmedetomidine is highly recommended to be used for the sedation of drunken patients after general anesthesia,but the incidence of circulatory adverse reactions should be paid attention to.

Objective: To explore the association between dietary patterns and overweight and obesity among primary and middle school students, so as to provide the guidance of diet balance and obesity prevention for students. Methods: Students from 11 primary and middle schools in Tongzhou District, Beijing Municipality, were selected using the stratified cluster sampling method. Demographic information was collected through a general questionnaire, and dietary intake types and frequencies over the past week were assessed using a food frequency questionnaire. Dietary patterns were determined using factor analysis, and the dietary pattern factor scores were divided into Q1, Q2, Q3, and Q4 groups based on quartiles. Height and weight were collected through physical examinations, and Z-scores of body mass index adjusted for gender and age were calculated to assess overweight and obesity. The association between dietary patterns and overweight and obesity was analyzed using a multivariable logistic regression model. Results: A total of 1 485 students were surveyed, including 745 males (50.17%) and 740 females (49.83%). The mean age was (12.87±2.86) years. Three dietary patterns were identified: animal and plant protein dietary pattern, high-fat and high-sugar dietary pattern, and vegetable-fruit-dairy dietary pattern. The detection rates of overweight and obesity were 42.57%, 48.42%, and 34.75%, respectively, with statistically significant differences (P<0.05). Multivariable logistic regression analysis showed that compared with the vegetable-fruit-dairy dietary pattern, the animal and plant protein dietary pattern (OR=1.406, 95%CI: 1.084-1.823) and the high-fat and high-sugar dietary pattern (OR=2.137, 95%CI: 1.643-2.779) were associated with a higher risk of overweight and obesity among primary and middle school students. Compared with the Q1 group of dietary pattern factor scores, the Q3 group (OR=1.631, 95%CI: 1.206-2.208) and Q4 group (OR=1.965, 95%CI: 1.446-2.671) of the high-fat and high-sugar dietary pattern had an increased risk of overweight and obesity, while the Q4 group of the vegetable-fruit-dairy dietary pattern (OR=0.551, 95%CI: 0.406-0.747) had a reduced risk of overweight and obesity. There was no statistical association between factor scores of animal and plant protein dietary pattern and overweight and obesity (all P>0.05). Conclusions The animal and plant protein dietary pattern and the high-fat and high-sugar dietary pattern are associated with a higher risk of overweight and obesity among primary and middle school students. Within the same dietary pattern, the more inclined students are to the high-fat and high-sugar dietary pattern, the higher their risk of overweight and obesity, while the more inclined they are to the vegetable-fruit-dairy dietary pattern, the lower their risk of overweight and obesity.

Purpose To study the clinicopathologic features, immunophenotype and differential diagnosis of solid papillary carcinoma (SPC) of breast.Methods 73 cases of breast SPC with or without invasive carcinoma were collected, and the clinical data and histopathologic features were analyzed with further investigation of transmission electron microscopy and immunohistochemical staining (EnVision method). Selected antibodies included cytokeratin (CK), myoepithelial markers, neuroendocrine markers, proliferation marker Ki-67 and ER,PR,c-erbB-2,etc.Results All the patients were females with mean age of 64.7 years.The presenting symptoms were either a palpable breast mass or nipple discharge.Metastasis was observed in 43 cases who had undergone axillary lymph node dissection. Histologically, the tumor displayed a solid-papillary growth pattern, with mucin production demonstrated in 25 cases. Intraductal papilloma was not uncommon at the peripheral area of the tumor. The tumor cells were polygonal, oval, spindled or signet ring-like and contained abundant eosinophilic to granular cytoplasm and mildly to moderately pleomorphic nuclei. More than 5 mitotic figures/10 HPF were observed in 51 cases. 43 cases contained foci of invasive carcinoma which showed similar cytologic features as those of in-situ component. Immunohistochemical study showed that the tumor cells were negative for basal cell cytokeratin; positivity for smooth muscle actin-alpha and p63 were demonstrated in the myoepithelial layers of fibrovascular cores, as well as around the expanded ductolobular units.Most cases also showed cytoplasmic positivity for chromogranin A (89.0%), synaptophysin (86.3%) and neuron-specific enolase (95.9%).The proliferatiing index, as highlighted by Ki-67 imnunostaining, was 9.2%.The tumor mainly expressed estrogen receptor and progesterone receptor. The staining for c-erbB-2 oncoprotein was negative in the most cases. Neuroendocrine granules were seen under transmission electron microscope in the cytoplasm.Conclusions SPC represents a subgroup of low-grade ductal carcinoma in situ.SPC predilection in older women is associated with mucinous and neuroendocrine components. Follow-up data suggest that SPC has a good prognosis.

OBJECTIVE To analyze the correlation between number of tissue eosinophils(Eos) and blood Eos levels in patients with chronic rhinosinusitis with nasal polyps(CRSwNP), and to investigate if tissue and blood eosinophilia predicts disease severity and prognosis in CRSwNP. METHODS A retrospective analysis of 102 patients, who diagnosed with CRSwNP was carried out in this study. Surgical specimens were evaluated for degree of tissue Eos, which was compared with blood Eos. Patients were divided into two groups according to the results of endoscopy one year after surgery: recurrent and non-recurrent group. Statistical analysis was performed to compare tissue and blood Eos and CT Lund-Mackay scores. RESULTS Blood and tissue Eos in recurrent group was significantly higher than that in non-recurrent group(P=0.032, 0.033, 0.017). There was not a statistical difference of CT scores between two groups(P =0.089). There was a significant correlation between tissue Eos and absolute number of blood Eos(r=0.637, P=0.000) as well as between tissue Eos and percentage of blood Eos(r=0.542, P=0.000). However Eos and CT scores were not correlated statistically(P>0.05). CONCLUSION Blood Eos levels can predict the degree of Eos infiltration in nasal polyps. Blood and tissue Eos correlate with prognosis.

ObjectiveTo investigate prophylaxis and treatment of bile leakage from hepatic duct anomalies after liver transplantation.MethodsWe retrospectively analyzed 3 patients with bile leakage from hepatic duct anomalies after liver transplantation in our institute.The graft procurements were combined liver-kidney harvesting.The reconstruction of the bile ducts was end-to-end anastomoses.ResultsIn the first patient with a right accessory duct joining the cystic duct,leakage of bile came from the stump of the cystic duct after anastomosis of the bile ducts.The original anastomosis was taken down,and reanastomosis was performed after plasty of the bile ducts.The patient recovered uneventfully.In the second patient with a Luschka bile duct,the biliary fistula closed spontaneously after percutaneous drainage.However,re-transplantation was performed for severe infection 7 month after the primary transplantation.In the third patient with an accessory hepatic duct from the right posterior sector joining the common bile duct,the bile duct stump which we missed leaked bile.Re-transplantation was performed because of severe complications.Conclusion Understanding the anatomy of intra- and extra-hepatic bile ducts and their common anomalies identifying the structures in the porta hepatis during preparation of the liver grafts,and looking for possible accessory hepatic ducts and aberrant bile ducts are important steps to prevent bile leakage in liver transplantation.

Objective Small-for-size syndrome (SFSS) is a common and serious problem after living donor liver transplantation (LDLT) of small grafts.To prevent SFSS by selecting large enough graft,enlarging outflow tract,and controlling the portal vein pressure and flow during LDLT.Methods 113 adult LDLT recipients were reviewed from Dec.1,2007 to Nov.30,2009.Enlarging the portal outflow tract by the incision of the anterior rim of the orifice of the right hepatic vein (RHV),modificating graft inflow,and selecting large enough graft were done to prevent SFSS.The relationship between the patients' GRWR,portal vein flow,portal vein pressure and the occurrence of SFSS was analyzed.Results All patients received the outflow orifice modification.The portal vein pressure and the portal vein flow were decreased after spleen artery ligation.No SFSS ocurred.Conclusion Selecting large enough liver graft,and enlarging portal vein inflow and outflow were safe for the LDLT recipients,and can effectively prevent SFSS.

BACKGROUND:With the increasing of aging, the incidence and mortality of osteoporotic hip fracture wil rise. It is of great significance to study the pathogenesis and preventing method. At present, finite element analysis can be used to judge fracture, only for the distribution trend of fracture failure in the starting point or section view, but it cannot completely reflect actual situation of fracture. OBJECTIVE:To build the fracture model of the femoral neck fracture caused by fal ing-induced external force based on the finite element analysis LS-DYNA software, and to evaluate the effect of rupture. METHODS:CT image data of one case of elderly femoral neck fracture were col ected. Using Mimics software, region growth of the contralateral area, cavity fil ing, editing, rebuilding the contralateral proximal femur model were conducted. Data were imported in Hypermesh and LS-DYNA software for meshing, and defining material properties. The failure parameters and interfacial properties were set. The load and force boundary constraints simulating the fal ing were simulated. The model of femoral neck fracture was calculated. Rupture effect was evaluated. RESULTS AND CONCLUSION:(1) The validity of contralateral proximal femur three-dimensional model was verified. Based on the finite element analysis software LS-DYNA, the femoral neck fracture model matched the actual fracture line to a degree of close to 83%. (2) Above results confirmed that based on the finite element analysis, LS-DYNA software can wel simulate the femoral neck fracture, which provides experimental basis to the exploration of femoral neck fracture classification mechanism caused by different fal ing-induced external forces.

Objective To investigate the efficacy of hepatitis B vaccination in preventing hepatitis B (HBV) recurrence after liver transplantation for hepatitis B virus-related (HBV-related) recipients.Methods 30 healthy recipients who survived for more than 2 years after liver transplantation received vaccination using hepatitis B surface antigen (HBsAg)-containing vaccine.There were a total of 5 injections at 0 month, 1 month, 2 months, 3 months and 6 months respectively, and each dose was 40 μg.Thirty healthy adults who received hepatitis B vaccination during the same period were selected into the control group.The antibody of hepatitis B surface (Anti-HBs) titer was tested at 1 month, 2 months, 3 months, 6 months, 9 months and 12 months after the first vaccination.Results 6.7％ (2/30) of the liver transplantation recipients had good response (defined as a rise of Anti-HBs titer of more than 100 IU/L at 12 months after the primary vaccination), and 16.7％ of recipients (5/30) had partial response (Anti-HBs titer in 3 patients at less than 100 IU/L, Anti-HBs titer in 2 patients at more than 100 IU/L at first, then less than 100 IU/L after 12 months).For the 9 patients who received liver transplantation for acute liver failure, 2 had good response (22.2％) and another 2 patients (22.2％) had partial response.For the liver transplant recipients who survived for more than 5 years, 2 had good response (22.2％) and another patient (11.1％) had partial response.In the healthy control group, the good response rate was 73.3％ (22/30), and the partial response rate was 10％ (3/30).Conclusions Some HBV-related liver transplant recipients could acquire Anti-HBs by vaccination.Good response rate was lower in the HBV-related group of liver transplant recipients than in the healthy control group of people.Recipients for liver transplantation carried out for acute liver failure and recipients who survived for more than 5 years had higher response rates to HBV vaccination.HBV vaccination can be a way to prevent HBV recurrence in some liver transplant recipients.

Objective To explore the effect of Angiopoietin-2(ANG-2) and Endostatin (ENS) in patho genesis and development of endometriosis. Methods Twenty-five endometriosis cases and 24 controls were enrolled. ANG-2 and ENS in endometrium were detected by Immunohistochemistry. The concentrations of ANG-2 and ENS in peri-toneal fluid were measured with enzyme linked immunoabsorbant assay. Results In the EMs group, ANG-2 positive rate in eutopic endometrium was significantly higher than that of ectopic endometrium. The ANG-2 positive rate in ectopic endometrium was significantly higher than that of control group; in EMs group, the ENS positive rate in ec-topic endometrium was significantly higher than that in eutopic endometrium. The ENS positive rate in eutopic endo-metrium was significantly higher than that in control group. There was no significant difference of ANG-2 or ENS between stage Ⅰ～Ⅱand stage Ⅲ～Ⅳ. In peritoneal fluid, ANG-2 and ENS concentration and ratio of ANG-2/ ENS in endometriosis were significantly higher than that in controls. Conclusion The effect of angiopoietin-2 and endostatin in angiogenesis of endometriosis are important play a role in pathogenesis and development of the endo-metriosis.