The leakage of glutamic-pyruvic transaminase ( GPT ) in the supernatant of primary cultures of rat hepatocytes has been used to evaluate the toxicity of the classical hepatotoxin carbon tetrachloride ( CC14 ) . The response of the isolated hepatocyte's preparation to incubate with CCl4 showed a clear dose dependency from 5 to 20 ml/ L in this system and the toxicity increased -with time of incubation. Glycyrrhizin ( 100mg/L ) and sodium caffeic acid 10 to 100 mg/L remarkably reduced GPT release in the medium of hepatocytes with CC14 while Bupleurum kunmingense polysaccharides had no significant effect at the same condition. Glycyrrhizin and caffeic acid might have protective effects against CC14. Further study is necessary. These findings also indicated that the primary cultures of rat hepatocytes is a suitable system for evaluating liver protective drugs as well as studying the function of cell metabolism.

Objective: To clone and express Treponema pallidum (TP) specific antigens P15 and P47 and use them in clinical examination. Methods: P15 and p47 genes synthesized were inserted into a GST fusion expression vector. The recombinant antigens were purified by affinity chromatography and then coated on microplates to establish an ELISA kit. Using this kit, national TP standards, sera of normal persons and patients with TP and other diseases were tested. Results: The synthesized p15 and p47 genes sequenced were identical with those of GenBank. National TP standards were tested by ELISA kit which coated with these recombinant antigens, and the results accorded with the standards. High sensitivity and specificity was showed when 2 recombinant antigens were used in ELISA to detect the sera of normal persons and patients with TP and other diseases. Conclusion: The recombinant TP specific antigen P15 and P47 are suitable for establishment of ELISA kit in clinical examination.

AIM: To establish the monoclonal antibody against human B lymphocyte stimulator (hBLyS) by DNA immunization and analyse its characterization. METHODS: The 858 bp DNA fragment of hBLyS was cloned into pcDNA3 plasmids. The cloned insert was identified by both sequence analysis and double digestion of the recombinant plasmid with restriction enzymes Xho I and EcoR I . After the splenocytes from BALB/c mice immunized with the recombinant plasmid of pcDNA3/hBLyS were fused with myeloma cells SP2/0,the hybridoma which can produce monoclonal antibodies against hBLyS were obtained. The specificity of anti-BLyS monoclonal antibody from hybridoma was verified by ELISA, Western blot and flow cytometry. RESULTS: The recombinant mammalian cell expression vector of pcDNA3/hBLyS was constructed, the sequence of the insert gene was identified to be the sequence encoding hBLy S antigen. The culture supernatants of hybridoma 9c10 were tested to be the monoclonal antibody with specificity against hBLyS on human peripheral blood CD3 + T cell activated by hIFN-? by ELISA, Western blot and flow cytometry. CONCLUSION: The monoclonal antibodies against hBLyS with high activity and specificity have been established successfully, and will be an useful tool in the studies of relationship between hBLyS and human autoimmunity diseases.

Objective To investigate the effect of delighted thinking on improving negative emotion of depression patients. Methods 100 depression patients were randomly divided into the observation group and the control group with 50 in each according to admission sequence. Both groups was executed antidepressionant drugs treatment and routine psychiatric care simultaneously. The observation group was given delighted thinking training on the basis of above treatment. The emotional recovery of two groups was observed. Results There was significant difference on facial expression, communication and limbs language after executing delighted thinking training in the observation group. And there was significant difference on scores of Hamilton depression rating scale (HAMD) at discharge. Scores of Nurses' Observation Scale during early, middle and late stage of delighted thinking training greatly improved compared with those before training. Conclusions Delighted thinking contributes to throw off negative thinking pattern of self-denial, stimulate positive passion threshold, improve depressed mood and raise treatment effect for depression patients.

At present, the monitoring methods fwor intracranial pressure adopted in clinical practice are almost all invasive. The invasive monitoring methods for intracranial pressure were accurate, but they were harmful to the patient's body. Therefore, non-invasive methods for intracranial pressure monitoring must be developed. Since 1980, many non-invasive methods have been sprung out in succession, but they can not be used clinically. In this paper, research contents and progress of present non-invasive intracranial pressure monitoring are summarized. Advantages and disadvantages of various ways are analyzed. And finally, perspectives of development for intracranial pressure monitoring are presented.
Humans ; Intracranial Pressure ; Monitoring, Physiologic ; methods

OBJECTIVETo summarize the clinical characteristics of an infant with chronic myelogenous leukemia (CML) and the effects of imatinib on the case.

METHODThe clinical features of an infant with CML, who was treated with imatinib in the Norman Bethune International Peace Hospital at June 2009, were retrospectively analyzed and the reports in literature were reviewed. The 1-year-old boy suffered from recurrent low-degree fever and pallor. He had a moderate anemia, distended abdomen and marked splenomegaly. Bone marrow aspiration revealed CML in chronic phase)CP). The t (9; 22))q34; q11) could be detected and BCR-ABL (p210) was positive. The boy was diagnosed as CML-CP and treated with imatinib 100 mg per day. There were 10 related papers and more than 100 child CML patients were reported as retrieved from CNKI)from its establishment to August 2014) and Wanfang Database)from its establishment to August 2014) when "Child", " Chronic" and "Leukemia" were used as keywords. And there were 30 related papers including 400 cases from PubMed Database (from its establishment to August 2014) and one detailed report of an infant with CML was retrieved when "childhood" and "chronic myeloid leukemia" "imatinib" were used as keywords. The clinical effects of imatinib in infant CML cases were analyzed and summarized based on the literature.

RESULTThe boy obtained a complete hematologic response (CHR) at the 6th week of diagnosis, a complete cytogenetic response (CCyR) at the 3rd month and a complete molecular response)CMR) at the 12th month without side effect. This boy grows very well and after a 62-month follow-up, his disease was stable. According to the domestic literature, 5 children CML cases aged 6 -12 years were treated with imatinib without side effects and got complete hematologic response (CHR) after 2-month-therapy. The dose, metabolic characteristics and clinical observation of imatinib can be found in foreign literature and imatinib showed good response with good tolerance in children with CML. Imatinib is regarded as the first line drug for children CML. But it may affect the development of the children.

CONCLUSIONThe children with CML-CP had a good response to imatinib, but more experience in the treatment of children with CML with iniatinib is needed.

Anemia ; Antineoplastic Agents ; therapeutic use ; Fusion Proteins, bcr-abl ; Humans ; Imatinib Mesylate ; therapeutic use ; Infant ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; drug therapy ; Male ; Remission Induction ; Retrospective Studies

AIM: To investigate the expression of B lymphocyte stimulator(BLyS) and CD38 molecules on peripheral blood lymphocytes of patients with systemic lupus erythematosus(SLE). METHODS: Twenty-two patients with SLE and fourteen healthy subjects entered the study. Isolated peripheral blood lymphocyte were stained for the lymphocyte surface markers BLyS, CD19, and CD38, and then was measured by flow cytometry(FACS). RESULTS: BLyS + lymphocytes, CD19 + lymphocytes, and CD19 +CD38 + lymphocytes were increased significantly in patients with SLE( P

Objective To observe and cpmpare the efficacy and complications of hyperfractional integrated intraeavitary brachtherapy in middle-advanced squamous-cell carcinoma with the traditionsl brachytherapy.Methods In the observed group,328 patients with cervical cancer received hypeffractional integrated intracavitary after loading therapy between Jan 2004 and Jan 2005 were selected.The dose of point A was 2.5 Gy-3.0 Gy/fraction,2 fractions per week,and the total dose of reference point A was 49.8 Gy in stage Ⅱ b,52.6 Gy in stage in Ⅲb.In the control group,331 cases treated with traditional aflerloading brachytherapy between Jan 2002 and Dec 2003 were selected.The dose of point A was 5.0～7.0 Gy/fraction,1 fraction per week,and the total dose of point A was 50.1 Gy in stage Ⅱb,53.5 Gy in stage Ⅲb.In vitro irradiation began at the same time with the intracavitary brachytherapy.The whole pelvic was irradiated with 15 MV X-rays.Results In the observed group,the recent control rate of stage Ⅱb was 97.2%(104/107),94.1%(208/221)for stage Ⅲb.The 3-year survival rate was 80.5%(264/328).and the 5-year survival rate was 68.6%(225/328).The complication rate was 5.2%(17/328)for cystitis, 14.6%(48/328) for proctitis.Out of 331 cases in control group,the recent control rate of stage Ⅱb was 95.4%(103/108),92.8%(207/223)for stage Ⅲb.The 3-year survival rate was 75.2%(249/331),the 5-vear survival rate was 62.5%(207/331).The complication rate was 13.3%(44/331)for cystitis,and 32.3%(107/331)for proctitis.Conclusions Compared with combination of traditional brachytherapy and external radiotherapy,combination of hyperfraetional integrated brachtherapy therapy and external radiotherapy has no significant improvement for recent control rate and long-term survival rate,but could reduce the complication rates of cystitis and proctitis.

Acquired Immune Deficiency Syndrome (AIDS) has been one of the main public heath problems that the Chinese public is facing. In order to estimate and predict the development of the epidemic situation, we studied on cellular automaton with the mechanism and characteristics of AIDS, and sets up an AIDS model on the base of the principle of cellular automaton. By studying the model, we analyzed the segregation power and AIDS-immune persons' influence on the transmission of the diseases. Some estimations and predictions can be drawn by studying model parameters. The structure of the model is flexible, and so it can change control tactics during evolution. Traditional differential equation cannot come up to it under the circumstances. It serves as tool with a great significance to the control as well as the prevention of AIDS.
Acquired Immunodeficiency Syndrome ; epidemiology ; transmission ; China ; epidemiology ; Humans ; Models, Theoretical

AIM: To study the effects of fibroblast growth factor 8 (FGF8) on directional differentiation of human dental pulp stem cells (hDPSCs) into odontoblasts and pulp tissue.METHODS: hDPSCs were isolated and cultured, and identified with flow cytometry by detecting cell surface markers of hDPSCs.FGF8 at concentration of 50 μg/L was added into the mineralization fluid to induce the differentiation of the hDPSCs.The mRNA expression of dentin sialophosphoprotein (DSPP), alkaline phosphatase (ALP), bone sialoprotein (BSP) and core-binding factor alpha 1 (Cbfa-1) in differentiated cells was detected by real-time PCR.FGF8 and mouse E11.5 dental epithelium formed restructuring cell group with hDPSCs, and then the restructuring cell group was transplanted under renal capsule membrane in nude mice for tissue culture.DNA in situ hybridization was used to identify the sources of odontoblasts and pulp cells.RESULTS: The surface markers of CD29 and CD90 showed positive in isolated hDPSCs.FGF8 induced hDPSCs to form a distinct mineralization nodule, and the expression of dentin-specific proteins, DSPP, BSP and Cbfa-1, was increased.hDPSCs were induced to differentiate into odontoblasts and pulp cells by E11.5 dental epithelium and FGF8.CONCLUSION: FGF8 can assist dental epithelium to induce directional differetiation of hDPSCs into odontoblasts and pulp cells, and formation of dentin and dental pulp cavity structure.