Recently, Geographic Information Systems (GIS) , as it could effectively combine space data (map) and social attributed information (database), has far-reaching impact the development of other disci-plines. Application of GIS as a tool to study epidemiology of breast cancer, can analyze the various factors affecting the distribution of breast cancer, determine their spatial distribution and spatial-temporal trends and spatial clustering analysis, the reconstruction of historical exposure to on-site to monitor the relationship be-tween living environment and breast cancer and thereby help the decision makers in targeted health policy. This paper discusses the application of GIS for breast cancer research progress .

BACKGROUND:Systemic lupus erythematosus is a complex autoimmune disease of unknown origin affecting virtual y every organ in the human body. It is characterized by abnormal activation of T, B lymphocytes. While aberrant T cells provide help to autoreactive B cells, the autoreactive B cells produce a variety of pathological autoantibodies and immune complex deposition, which could infiltrate the smal blood vessels directly or deposit in the vessel wal , thereby causing inflammatory necrosis of the vessel wal s. These changes wil narrow the vascular lumen, and promote thrombosis, leading to local tissue ischemia and dysfunction. Mesenchymal stem cells can regulate the immune disorders, play an anti-inflammatory role, and repair the immune thrombosis.
OBJECTIVE:To summarize the pathogenesis of immune thrombosis in systemic lupus erythematosus, as wel as to introduce the mechanism of mesenchymal stem celltherapy for immunity thrombosis.
METHODS:We searched the PubMed database, Springlink database, ScienceDirect database and HighWire database from January 1990 to June 2013 with the key words of“systemic lupus erythematosus, mesenchymal stem cell, thrombosis, T cells, B cells”in English. An online search of CNKI database, Wanfang database, VIP database from January 1990 to June 2013 was also conducted with the key words of“systemic lupus erythematosus, mesenchymal stem cell, thrombosis, T cells, B cells”in Chinese. A total of 267 literatures were screened out, and 48 documents were included in the review based on the inclusion and exclusion criteria.
RESULTS AND CONCLUSION:Mesenchymal stem cells are multipotential nonhematopoietic progenitor cells capable of multi-directional differentiating into various celltypes. Mesenchymal stem cells can suppress T-lymphocyte activation and proliferation, and inhibit secretion of interferon-γ, interleukin-4. Mesenchymal stem cells can also inhibit the proliferation of B cells and the secretion of pathogenic immunoglobulin IgM, IgG, IgA. Thus, mesenchymal stem cells can regulate immune homeostasis and reduce the deposition of autoantibodies and immune complexes, thereby protecting the blood vessels from injury, reducing the secretion of inflammatory cytokines, balancing the coagulation-anticoagulation, and decreasing thrombosis in systemic lupus erythematosus.

The decade practical training experiences in vascular department of Xuanwu Hospital were reviewed.Quality training and medical education measures for further study physicians in department of vascular surgery were introduced and summarized from medical ethics education,professional training,theoretical knowledge training and quantitative assessment.All these measures were intended to improve the overall quality of vascular surgical further study physicians and to guarantee the most gain for trainees.

Objective To investigate the correlation between bacteria and upper urinary tract calculi (UUTC). Methods 530 cases of UUTC were enrolled in the study.Mid-stream urine culture was obtained before operation.Intraoperative pelvic urine culture,cotton swab culture of stone-incarcerated mucosal surface,pre- and post-sterilized stone culture were also carried out. Results Among 530 cases of UUTC,the stone culture showed positive (infectious stone) in 120 cases (22.6%),more prevalent in females than in males. Staphylococcus epidermidis and Escherichia coli were the predominant bacteria, accounting for 60.1% and 32.5%,respectively.The infection rate with which a stone size was ≥1.0 cm with coarse surface,loose density or radiolucent was much higher than that of size

OBJECTIVE:To study the correlation between MTX concentration and hydration volume,alkalization volume,urine volume,body weight and biochemical indexes in Children with acute lymphoblastic leukemia(ALL).METHODS:The case histories of pediatric ALL patients hospitalized between 2003 and 2006 who were treated with MTX antitumor thrapy were reviewed retrospectively for a recording of MTX concentration,hydration volume,alkalization volume,urine volume,body weight and biochemical indexes etc.The data were analyzed with multiple linear regression method by SPSS(10.0)software.RESULTS:No significant correlation was noted between log MTX concentration and most of the biochemical indexes,hydration volume,alkalization volume and urine volume;however,log MTX concentration at 24 h was negatively correlated with body weight but positively correlated with TBIL(total bilirubin)(P

OBECTIVE:To establish a RP -HPLC method for the determination of plasma concentration of flurbiprofen. METHODS:By external standard method,the plasma sample after precipitation with acetonitrile was determined on Symmetry shield C_(18) chromatographic column with the mobile phase consisted of buffer phosphate(pH 7.0) - acetonitrile(75:25) at a flow rate of 1.0 mL?min~(-1).The detection wavelength was set at 247 nm.RESULTS:The linear range of flurbiprofen was 0.05～20?g?mL~(-1)(r=0.999 1) with the detection limit of flurbiprofen at 0.05?g?mL~(-1).The average recoveries at low,middle and high concentrations all ranged between 96.1%and 107.1%,and both the intra - day RSD and the inter-day RSD were less than 10%,meeting the standard required of the methodology.CONCLUSION:The method developed in this study was proved to be simple,accurate,rapid,and suitable for the monitoring of concentration and pharmacokinetic study of flurbiprofen.

MAPKKK (MEKK1 or ASK1)/MAPKK (SEK1 or MKK7)/JNK signal cascade is an important pathway which mediates apoptosis. MAPK phosphotase can deactivate JNK by dephosphorylation of JNK.The interaction between JNK and c-Jun can also be negatively regulated by NO through S-nitrosylation. SGK1 or Akt can result in deactivation of SEK1 through its phosphorylation at the Ser78 site.The c-FLIPL can block this cascade through binding with MKK7.GST Mu1-1 interferes and suppresses MEKK1-mediated apoptosis. GST Pi 1-1 and TRX have a dose-dependent inhibitory effect on ASK1 through forming protein complex. The deactivation of JNK can enhance drug resistance of tumor cells and counteract the injury from a wide variety of stimulus. Here,how these proteins induce deactivation of the pathway and mediate anti-apoptosis has been discussed.

This paper is to prepare curcumin (Cur) loaded mesoporous silica nanoparticle (Cur-MSN), evaluate its release behavior and anti-cancer activity in vitro. Mesoporous silica nanoparticle (MSN) was prepared by polymerization method and Cur-MSN was obtained using solvent evaporation method and impregnation centrifugation method. The preparation method was optimized using entrapment efficiency (EE) and loading efficiency (LE) as indexes. Cur-MSN was characterized with scanning electron microscope and its particle size and zeta potential were determined. Finally, in vitro release behavior in 0.2% SDS solution and its cell-killing effect on HeLa cells were also evaluated. The Cur-MSN prepared with process optimization method was round and uniform and exhibited typical mesoporous characterization. The mean particle size and Zeta potential of Cur-MSN were 75.8 nm and -30.1 mV, respectively. EE and LE of three batches of Cur-MSN were (72.55 ± 2.01)% and (16.21 ± 1.12)%, respectively. In vitro release behavior of Cur-MSN showed a sustained release profile with 83.5% cumulative release within 96 h. The killing effect of Cur-MSN on HeLa cells was dose-dependent with IC50 of 19.40 mg x L(-1), which was similar to that of Cur.
Antineoplastic Agents, Phytogenic ; chemistry ; pharmacology ; Curcumin ; chemistry ; pharmacology ; Drug Carriers ; chemistry ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Nanoparticles ; chemistry ; Neoplasms ; drug therapy ; Particle Size ; Porosity ; Silicon Dioxide ; chemistry

The Toxoplasma gondii vaccine is the best way to prevent Toxoplasma gondii infection. The improvement of the biological techology promots the study of Toxoplasma gondii vaccine. The newest study progresses of Toxoplasma gondii genetic engineering vaccine,which is summarized on the basis of the current study results,is respected to provide new aspects of the Toxoplasma gondii vaccine study for the researches.

Objective To observe curative effect of mental therapy on women perimenopausal period syndrome.Methods 100 patients with perimenopausal period syndrome were randomly divided into the treatment group and control group with 50 cases in each group. Patients of the treatment group were treated by Cryzanolam, Surazepam, etc,and mental therapy was given simultaneously twice one week. Patients of the control group were treated only by drugs. The period of treatment was four weeks. The curative effect was assessed by SCL-90 symptom self evaluation scales.Results Several factors and total average points of two groups' SCL-90 all dropped, and there was significant difference between two groups after therapy (P<0.01). For patients of the treatment group, clinic symptoms were markedly abated after treatment (P<0.05), and average scores of several factors were not significantly different from normal adults (P>0.05). Conclusion The mental therapy can remit symptoms of women perimenopausal period syndrome effectively and improve their healthy.