Leptin is type I cytokine detected recently.It takes part in physiological action such as energy balance, fat storage and process of metabolism,reproduction and hemopoiesis in vivo.Leptin may be an important role between adipose tissue and genital system.Lack or excessive of leptin is related to infertility in some diseases involving in nutritional status. Leptin takes part in female infertility pathogenesis in hypothalamus pituitary gland gonad axia and other respects.

Objective To study the change of maternal serum human chorionic gonadotropin(MShCG) in preterm labor and the relationship between hCG and placental pathological changes. Metheds The preterm labor patients were chosen as the research subjects, the normal late-pregnancy women with the same gestational age were chosen as controls. MShCG level were measured by radioimmunoassy (RIA), placental tissue of preterm labor women was examined histologically. hCG in placental tissue was examined by semiquantiative immunohistochemistry. Results MShCG in preterm labor was significantly higher than that of control P

Bacterial biofilm is responsible for a wide variety of nosocomial infections.Many chronic infectious diseases are closely correlated with biofilm formation in the clinic.As the biofilm growth,bacterial clusters detachment and dispersal from mature mixed-species biofilms will result in repeated acute infections.Here reviews three distinct biofilm dispersal strategies: swarming dispersal,clumping dispersal and surface dispersal.Many factors,such as heredity and increased fluid shear in the environment,contribute to this complex and dynamic process.Fundamental investigation upon biofilm will benefit clinical therapy of biofilm-associated infections.

0.05). Conclusion Fetal ovary allotransplant can survive in spayed adult female rats, develop and restore the function of secreting sex hormones.

Objective To investigate the protective effect of Gingko Biloba extract (GBE) on acute lung hemorrhage induced by Lipopolysaccharide(LPS) in newborn rats. Methods 1. Acute lung hemorrhage models were reproduced by intraperitoneal injection with LPS (5 mg/kg). 2. Thirty two rats were randomly divided into 4 groups,GBE groups (4 mg/kg,8 mg/kg, 16 mg/kg) and LPS group 5 mg/kg. Results In group LPS, extensive lung hemorrhage was observed after 4 hours of injection . TNF - ? iung content was obvious in LPS group. The expression of lung nuclear factor(NF-kB )immunohistochemistry wasobvious. While the parameters were obviously attenuated by GBE before LPS. Conclusion GBE may be useful in the treatment of acute pulmonary inflammatory disease.

Objective To explore the clinical efficacy of anatomic liver resection in treatment of hepatocellular carcinoma (HCC) with microvascular invasion (MVI).Methods The retrospective cohort and case-control study was conducted.The clinical data of 150 HCC patients with MVI who were admitted to the Anhui Medical University Affiliated Provincial Hospital from June 2007 to June 2012 were collected.Sixty patients undergoing anatomic liver resection were allocated into the AR group and 90 undergoing non-anatomic liver resection in the NR group.Patients in the AR group underwent anatomic liver resection according to results of preoperative ICG R15 test,and patients in the NR group underwent non-anatomic liver resection.Observation indicators:(1) operation situations:operation time,volume of intraoperative blood loss,number of patients with blood transfusion;(2) postoperative recovery situations:time of drainage-tube removal,duration of hospital stay,Clavein grade of complication within 30 days postoperatively,number of patients with hepatic failure within 30 days postoperatively and number of death within 30 days postoperatively;(3) follow-up:postoperative median survival time,5-year overall survival rate and 5-year tumor-free survival rate;(4) prognostic factors analysis of 150 HCC patients with MVI.Measurement data with normal distribution were represented as-x±s and comparison between groups was analyzed using the independent-sample t test.Count data were represented as the chi-square test or Fisher exact probability.The survival rate was calculated using the Kaplan-Meier method and survival analysis was done using Log-rank test.The univariate analysis and multivariate analysis were done using the COX regression model.Results (1) Operation situations:all the 150 patients received successful radical resection of HCC.Operation time,numbers of patients with volume of intraoperative blood loss ≥ 500 mL and with volume of intraoperative blood loss ＜ 500 mL and number of patients with blood transfusion were (165±39) minutes,12,48,15 in the AR group and (136±30)minutes,34,56,38 in the NR group,respectively,with statistically significant differences between the 2 groups (t =29.172,x2=5.351,4.673,P＜0.05).(2) Postoperative recovery situations:time of drainage-tube removal and duration of hospital stay were (2.7± 1.1)days and (5.2± 1.3) days in the AR group,(3.8±1.6)days and (7.1±2.3)days in the NR group,respectively,with statistically significant differences between the 2 groups (t =4.641,5.812,P＜0.05).Numbers of patients with grade Ⅰ-Ⅱ of Clavein grade and with grade Ⅲ-Ⅳ and number of death within 30 days postoperatively were 45,15,1 in the AR group and 61,29,2 in the NR group,respectively,with no statistically significant difference between the 2 groups (x2 =0.906,P＞0.05).Number of patients with hepatic failure within 30 days postoperatively in the AR and NR group were respectively 4 and 17,with a statistically significant difference (x2=4.467,P＜0.05).(3) Follow-up:all the 150 patients were followed up for 1-106 months,with a median time of 26 months.The postoperative median survival time,5-year overall survival rate and 5-year tumor-free survival rate were 46 months,33.3％,21.7％ in the AR group and 18 months,15.6％,2.2％ in the NR group,respectively,with statistically significant differences in overall survival and tumor-free survival between the 2 groups (x2=23.718,63.932,P＜ 0.05).(4) Prognostic factors analysis of 150 HCC patients with MVI:result of univariate analysis showed that maximum diameter of tumor,tumor capsule,TNM stage,Edmondson grade and surgical procedures were relative factors affecting overall survival and tumor-free survival of HCC patients with MVI,with statistically significant differences (x2=5.519,2.790,13.639,8.321,42.470,31.057,15.963,19.594,23.718,63.932,P＜ 0.05).Result of multivariate analysis showed that missing tumor capsule,stage Ⅲ-Ⅳ of TNM stage,grade Ⅲ-Ⅳ of Edmondson grade and non-anatomic liver resection were independent factors affecting poor overall survival and tumor-free survival of HCC patients with MVI,and maximum diameter of tumor ＞5 cm was an independent factor affecting poor overall survival of HCC patients with MVI,with a statistically significant difference [HR =0.527,0.683,0.333,0.522,0.576,0.514,0.523,0.268,95％ confidence interval (CI):0.355-0.782,0.475-0.983,0.219-0.504,0.361-0.755,0.389-0.852,0.358-0.737,0.342-0.800,0.174-0.413;HR=0.559,95％CI:0.370-0.845,P＜0.05].Conclusions Anatomic liver resection in the treatment of HCC patients with MVI is safe and effective,with good short-term and long-term outcomes,and it can also improve prognosis of patients.Missing tumor capsule,stage Ⅲ-Ⅳ of TNM stage,grade Ⅲ-Ⅳ of Edmondson grade and non-anatomic liver resection are independent factors affecting poor overall survival and tumor-free survival of HCC patients with MVI,and maximum diameter of tumor ＞5 cm is an independent factor affecting poor overall survival of HCC patients with MVI.

After The Medical Institution Management Regulations was enacted by the State Council in 1994, 26 Chinese provinces and municipalities have enacted the local legislation of medical institution management.These local legislations make a full use of the space of legislation which the host law gives, reasonably determined the health administrative departments'management responsibilities at all levels, detailed the responsibility division for examina-tion and approval, and defined the medical institution practice behavior requirement.The local legislation has played a positive role for the rational medical resources allocation and standardized the local medical institutions practice or-der.But as time goes by and reform deeply, the weakness of these legislations has emerged.This is seen for the fact that they have not been repaired for many years, blindly repeat host law, heavily rely on the regulations with poor sta-bility , do not keep the pace with the system design times, violate the license law, and pay attention to the administra-tive examination and approval instead of the occupational behavior management.This paper makes full investigation on the existing relevant medical institution management laws, regulations and policies.Through the analysis of advan-tages and disadvantages of provincial legislations, some thinking on the medical institutions management is put for-ward.

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Objective To study the step aceuracy of 252Cf neutron afterloading radiotherapy machine and the dose deviation caused by step deviation.Methods EBT3 film was used to measure the steps of the 252Cf neutron source,and then the center of each 252Cf neutron source was identified by measuring the optical density value by using the ImageJ software.Double ion chambersmethod was used to measure the dose deviation dlue to the 252 Cf neutron source position shift.Results 252 Cf neutron source step accuracy may amount to 0.01 mm using EBT3 film measurement,when 252Cf neutron source position deviation is less than 3 mm,the dose deviation is less than 2.5％.Conclusions The study on the step accuracy and position deviation of the 252Cf neutron source can provide a reference for the quality control standard of the 252Cf neutron afterloading radiotherapy machine.