Objective To differentiate the sequences of Cyt b gene Agkistrodon from its adulterants sold in the market in order to provide molecular evidence for identification of Agkistrodon. Methods Cyt b gene was used to sequence and analyze Agkistrodon and its adulterants sold in the market. Results There was a mixed phenomenon in Agkistrodon species. The differences of Cyt b gene sequence between Agkistrodon and its adulterants sold in the market are significant: the difference rates among the species of Agkistrodon are 0%—0.91%, the difference rates between Agkistrodon and its adulterants are 18.57%—23.78%. Conclusion The characteristics of Cyt b gene sequence can be used as a better molecular marker for authenticating Agkistrodon from its adulterants.

The level of the laboratory work is an important symbol for the levels of teaching,research and management in a college.The Logistics university of the chinese people's armed police force is in a institution of transitional restructuring and need to integrate existing research laboratories in order to form a comprehensive experimental center and to build collaborative research platform.On the basis of the current situation and the necessity of a college research laboratory analysis of the Armed Police,we produce the measures and methods and discuss the purpose and significance of the integration.Through these analysis,we both provide the leaders a reference for the development of the construction plan of the hospital research laboratories,but also provide a reference for the management of the research laboratories.At last we can build the scientific research system which the university need and improve the research quality.

AIM: To observe the effects of Dispel Stasis Decoction(Radix et Rhizowa Salviae multiorrhizae,Rhizoma Sparganii,Rhizoma Curcumae,etc) on TNF-? and E_2 in rats with endometriosis(EMS),and to observe its anti-inflammatory and analgesic effect. METHODS: Endometriosis rat models were made by autograft of endometrium in abdomen.Four weeks after operation,EMS model rats were randomly divided into 5 groups: a model group,3 Dispel Stasis Decoction groups and a danazol group.All the rats were treated for three weeks respectively,and then anaesthetised and killed.The ectopic endometrium's focuses were observed by microscope,the levels of TNF-? and E_2 in the serum of all groups were measured by radioimmunoassay.The method of body twist and ear edema of mouse were used to the analysis the anti-inflammatory and analgesic effect of Dispel Stasis Decoction. RESULTS: The survived graft shrinked and the number of the glanduls decreased in rats of Dispel Stasis Decoction group.The levels of TNF-? and E_2 in the serum were significantly lower than that of the model group.Also,Dispel Stasis Decoction could inhibite the ear edema of the mouse induced by dimethylbenzene and the body twist of the mouse caused by acetic acid notablely. CONCLUSION: Dispel Stasis Decoction inhibited growth of the graft and showed a significant therapeutic effects on EMS model rat.It also has notable functions of anti-inflammatory and analgesic.This may be related to its inhibition of TNF-? and E_2 levels.

ObjectiveTo analyze intrathoracic or extrathoracic recurrence pattern after surgical resection of thoracic esophageal squamous cell carcinoma (TESCC) and its help for further modify and improvement on the target of postoperative radiation therapy. Methods One hundred and ninety-five patients who had undergone resection of TESCC at the Cancer Hospital,Chinese Academy of Medical Sciences enrolled from April 1999 to July 2007.Sites of failure on different primary location of esophageal cancer were documented.Results Patients with upper or middle thoracic esophageal cancer had higher proportion of intrathoracic recurrence.Patients with lower thoracic esophageal cancer had more intrathoracic reccurence and abdominal lymph node metastatic recurrence.Histological lymph node status has nothing to do with intrathoracic recurrence,supraclavicular lymph node ( SLN ) metastasis or distant metastasis ( χ2 =1.58,0.06,0.04,P =0.134,0.467,0.489,respectively),whereas the chance of abdominal lymph node metastases in N positive patients was significantly higher than that in N0 patients (28.7％: 10.6％,χ2 =9.94,P =0.001 ),and so did in middle thoracic esophageal cancer ( 20.0％: 5.6％,χ2 =5.67,P =0.015). Anatomic recurrence rate of patients with proximal resection margin no more than 3 cm was significantly higher compared to those more than 3 cm (25.0％: 11.3％,χ2=5.65,P=0.019).ConclusionsMediastinum is the most common recurrence site.According to recurrence site,the following radiation targets are recommended:when tumor was located at the upper or middle thoracic esophagus with negative N status,the mediastinum,the tumor bed and the supraclavicular region should be included as postoperative RT target;when tumor was located at the middle thoracic esophagus with positive N or located at the lower thoracic esophagus,the abdominal lymph node should be added.If the proximal resection margin was no more than 3 cm,the anastomotic-stoma should be included.

0.05).Compared with the normal(P0.05).In the control group with G-6-PD deficieney,ROS,MDA of phototherapy of 24 hours were higher,the index of phototherapy was larger significantly than in the the G-6-PD normal.Conclusion Phototherapy can alleviate the ability of anti-oxgenize,it can be more extruding for the patients who are deficient for the G-6-PD by the damage of lipid over oxygenizing,the interference of vitamin E is more efficient.

Objective Proliferation and apoptosis play a major role in the development of tumor cells,and the intranuclear transcriptional factor c-fos is significantly up-regulated in the primary hepatocellular carcinoma and involved in early carcinogenesis.The purpose of the present study is to investigate the apoptotic effect of c-fos antisense oligodeoxynucleotide(ASO) on human hepatocellular carcinoma HepG2 cells and the participation of Caspase3 in this process.Methods Cell culture,Hoechst 33258 staining,real-time PCR and Western blotting were used in present study.Cultured HepG2 cells were divided into 3 groups: 1) control group: cultured with 10?l saline;2) sense oligodeoxynucleotide(SO,used as a negative control) treated group: co-cultured with 10?l SO(5?g/?l);3) ASO treated group: co-cultured with ASO 10?l(5?g/?l).The subsequent experiments were performed 1h after cultivation for each group.Hoechst 33258 staining was performed to detect the apoptosis by observing the staining of nuclear chromatin.Real-time PCR and Western blotting were used respectively to detect the expression of Caspase 3 at mRNA and protein levels after different treatments.Results Hoechst 33258 staining revealed that the nuclei of HepG2 cells showed diffuse and adqulis fluorescence in control and SO-treated groups,while dense and dark fluorescence was observed in ASO-treated group,which indicated that c-fos ASO had significantly induced apoptosis of HepG2 cells.The expression of Caspase 3 in ASO group was enhanced both at mRNA and protein levels compared to that in control groups.Conclusions C-fos ASO significantly induces apoptosis in human hepatocellular carcinoma HepG2 cells,as shown by Hoechst 33258 staining and higher expression of Caspase 3 mRNA and protein.Moreover,Caspase 3 activation is involved and probably plays an important role in c-fos ASO-induced apoptosis of HepG2 cells.

Objective:To evaluate the radiotherapeutic strategy for the treatment of recurrent esophageal cancer after radical re-section and determine relevant prognostic factors. Methods:A total of 66 patients with esophageal carcinoma and exhibited recurrence after radical surgery were retrospectively reviewed from Jan 2007 to Jun 2010. The median interval of recurrence from the initial sur-gery was 10.6 months. Among the 66 patients, 50 suffered from loco-regional recurrences alone, and 16 developed distant metastases in addition to loco-regional recurrences. Among the 66 patients, 10 were treated with radiotherapy after recurrence, 23 were treated with chemotherapy alone, and 33 were treated with radiotherapy combined with chemotherapy. Among the 33 patients, 22 were initially treat-ed with chemotherapy and 11 were initially treated with radiotherapy. The median total dose of the external radiotherapy was 60 Gy with 6 MV X-ray of a linear accelerator. Results:The median survival period after recurrence was 14.3 months (95%CI=12.4~16.2 months). The 1-, 2-, and 3-year survival rates were 61.9%, 25.9%, and 16.5%, respectively. The median survival period after recurrence in the patients who were treated with chemotherapy alone, radiotherapy alone, and radiotherapy combined with chemotherapy were 11.4, 25.5, and 14.3 months, respectively. The patients who developed distant metastases treated with chemotherapy initially showed better survival outcome than those treated with radiotherapy (P=0.032). Univariate analysis results showed the following prognostic factors:tumor location before surgery;operation mode;whether or not recurrence was detected with distant metastases;and therapy af-ter recurrence. Multivariate analysis results showed that tumor location before surgery was an independent prognostic factor. Conclu-sion:Tumor location may indicate prognosis after recurrence. Patients with recurrent esophageal carcinoma and developed distant me-tastases treated with chemotherapy may initially benefit from a longer survival rate.

This study examined the effect of nicotine on the expression of mutant p53 (mt-p53) in bladder cancer rats. The rat models of bladder cancer were established by infusing N-methyl-nitroso-urea (MNU, 10 mg/kg every 2 weeks for 8 weeks) into the bladder. Pathological examination on the bladder was conducted to confirm the establishment of the model. All the bladder cancer rats were randomly divided into an MNU group and 3 nicotine groups. In the nicotine groups, the rats were intragastrically administered nicotine at different concentrations (25, 15, 5 mg/kg respectively) 3 times per week for 8 weeks. The mt-p53 expression was detected by the immunohistochemical method. The results showed that rat bladder cancer models developed histopathological changes of bladder transitional cell carcinoma. The positive rate of mt-p53 expression in the 3 nicotine groups (25, 15, 5 mg/kg) was 75.00%, 58.33% and 41.67% by the 14th week, respectively, significantly higher than that in the MNU group (33.33%) (all P<0.05). The mt-p53 expression rate was positively correlated with the medication dose and time (P<0.05). It is concluded that nicotine may play an important role in the development of bladder cancer partially by increasing the expression of mt-p53.

Objective:This study aims to analyze the relationship between the effect of induction chemotherapy and the timing of radiotherapy in limited-disease or limited-stage small-cell lung cancer (LSCLC). Methods: Data from 148 LSCLC patients who re-ceived induction chemotherapy and radiotherapy between January 2009 and December 2012 were retrospectively analyzed. The effect of two to three cycles of induction chemotherapy was evaluated according to the RECIST version 1.1, which includes complete re-sponse (CR), partial response (PR), stable disease, and progressive disease. CR and PR were used to calculate response rate. The pa-tients were divided into early and late groups based on immediate radiotherapy after two to three cycles of induction chemotherapy. The survival rate was analyzed using the Kaplan-Meier method. Log-rank test and Cox regression model were used to evaluate the influenc-ing factors of the survival rate. Results: The median overall survival (OS) and progression-free survival (PFS) were 22.8 and 13.0 months, respectively. The early and late radiotherapy groups exhibited OS of 34.0 and 18.0 months, respectively, and corresponding PFS of 16.8 and 10.9 months. In the subgroup analysis, for the patients who responded to the induction chemotherapy, the early and late radiotherapy groups showed median OS of 18.0 and 19.5 months, respectively, and corresponding PFS of 19.4 and 11.7 months. For the patients who had no response to the induction chemotherapy, the early and late radiotherapy groups exhibited median OS of 18.0 and 9.5 months, respectively, and corresponding PFS of 12.4 and 10.3 months. Conclusion:All LSCLC patients who received two to three cycles of induction chemotherapy should receive radiotherapy as soon as possible after chemotherapy, regardless of their response to the induction chemotherapy.

Objective To evaluated the application value of two kinds of mass spectrometer(MS)and Vitek MS system in the i-dentification of routinely isolated bacteria in clinic.Methods 149 strains of common bacteria(including 14 genera and 30 species)i-solated from blood,urine,cerebral spinal fluid,secretion and sputum samples in our hospital from March 2012 to January 2013 were collected and simultaneously identified by 2 kinds of matrix-assisted laser desorption ionization-time of flight mass spectrometer (MALD-TOF-MS).The identification results were compared with those identified by the conventional biochemical identification (Vitek2 compact).The strains with the inconsistent results identified by 3 kinds of method were confirmed by 16S rDNA gene se-quencing.Results Among 149 common bacteria,the correct identification rates of genus and species by the Bruker Biotyper MS were 98% and 96% respectively and which by the Vitek MS system were 97% and 95% respectively.There were no misidentified bacterial strains by these two kinds of MS.Conclusion No statistical difference in the identification results was observed between these two kinds of MS system(P >0.05).Both exhibit excellent identification level and are suitable for the routine laboratory iden-tification of clinical microorganism.