Objective:To construct recombinant bacille calmette-guerin (BCG) carrying murine interleukin-12 (mIL-12) genes,and to identify the ability of recombinant BCG for submitting plasmids to eukaryotic cells. Methods:Co-expression shuttle plasmid of pBM12, including mIL-12 gene and mycobacterial replicon of Orim,was built using molecular biological approach.The pBM12 was transfected to BCG competence by electroporation to construct recombinant BCG. The plasmid of recombinant BCG was extracted for PCR identification. The ability of submitting plasmids to eukaryotic cells was determined by RT-PCR. Results:The plasmid pBM12 may be transduced into BCG with electroporation. The specific bands for mIL-12 of the recombinant BCG were detected by PCR. The specific bands for 1632 bp mIL-12 were amplified from transfected macrophages after 96 hours byRT-PCR. Conclusion:The recombinant BCG carrying pBM12 was constructed successfully. The recombinant BCG can submit the carried genes to mice macrophages.

Objective:To investigate the distribution and regulation of uterine NK cells in mouse uterus during early pregnancy. Methods:Using a unique uNK cell marker,Dolichos biflorus agglutinin (DBA) lectin,to localize NK cells in uterus of normal pregnancy,delayed implantation and artificially induced decidualization. Results:DBA staining is mainly distributed in some vascular endothelial cells during embryo pre-implantation. In D5 of pregnancy after embryo implantation,NK cells were distributed in the stroma of uterine mesometrial pole,with round,immature and small lymphocyte-like cells. During D7 and D8 of pregnancy,the immunostaining results showed that uNK cells were increasingly accumulated in the mesometrial pole of implantation sites,with their morphology changing from small round cells with scattered cytoplasm to large and mature cells with heavy cytoplasmic granules. In the artificially induced decidualization model,the distribution and maturity of NK cells are similar to those of the normal pregnancy in the mouse uteri. Conclusion:The distribution and maturation of uterine NK cells are dependent of uterine decidualization in mouse early pregnancy.

OBJECTIVE:To study the protecting and therapeutic effect of compound Zigui capsule on climacteric syndrome and the mechanism of the action in rats,so that it may provide a theoretical basis for clinical treatment METHODS:The climacteric syndrome model was made by ovariectomy in rats and the effects of compound Zigui capsule on hemorheological parameters were observed RESULTS:Compound Zigui capsule could lower blood viscosity,plasma viscosity,blood reduced viscosity and red cell rigidity index It could also inhibit platelet adhesion CONCLUSION:Compound Zigui capsule has obvious preventive and therapeutic effects on rat's climacteric syndrome

Abscopal effect is for tumor therapy and control of tumor metastasis.it will produce consider-able eignifieance in clinical tumor therapy.The exactly mechanisms of this effect have not been recognized com-pletely so far,and researchers find this effect is associatod with immune system response,espeeiaHy the cell-me-diated immunity.The response of abscopal effect can activate antitumor immunologic response in vivo possibly through antigen releasing and presentation,activation of T cell and natural killer cell,the role of cytokine,in-flammatory reaction,apoptosis,and etc.

Objective:To compare the characteristics of allergic rhinitis animal models in two different animals(Guinea pigs and New Zealand rabbits) induced with various doses of toluene-2,4-Diisocyanate(TDI).Methods:Low dose and high dose of TDI olive oil solution was used as sensitizer to establish models of Guinea pigs and New Zealand rabbits.The typical symptoms and sings of Guinea pigs and New Zealand rabbits were respectively scored during modeling.After the last challenge,nasal mucosa of Guinea pigs and New Zealand rabbits were histopathologically examined and the level of histamine in nasal mucosa was measured by spectrofluorometer.The mortality rates and model success rates were record.Respiratory tracts of dead animals were dissected and histopathologically examined to find out the causes of their death.Results:Compared with control groups,all the Guinea pigs and New Zealand rabbits in model groups got typical symptoms and sings of allergic rhinitis.Histopathology examination of nasal mucosa showed eosinophile cells infiltrating obviously.The levels of histamine in nasal mucosa were highly increased(P

Objective To review and analyze the causes of infant malnutrition and its relation with the way of feed.Methods Infant malnutrition was analysed with the emphasis on pathogeny,the onset month of the birth, its complication and clinical reflection in 63 cases.Results Infant malnutrition occurred in the case with incorrect feeding way:feeding on low protein powdered milk or cereals untimely without considering the supplementary food. Malnutrition easily brought out other kinds of disease.Conclusion It is recommended that infants younger than 5 months should be fed on breast-milk.In case of no breast-milk or short,dairy products are introduced,especially in- fant formula,with adding supplementary food timely.If not so,infant malnutrition occurs.

Objective To simulate the blood flow features of the susceptible sites of atherosclerosis in vitro.The cell micro-patterning is to be obtained on the bottom of channel for the information about single cell or cell groups.Methods Poly-dimethylsiloxane(PDMS) flow channel and PDMS stamp were fabricated by soft lithography.Fibronectin pattern was formed on chamber bottom by micro-contact printing method and cells selectively attached on fibronectin pattern.Results The PDMS-patterned chamber that possessed favorable optical property and the PDMS stamps with different sizes were obtained.Cells attached on fibronectin pattern presented square array.Conclusion The fabricated methods are quick and simple.The chamber could be used for the advanced real-time investigation of cell mechanical behavior in vitro.

Object A method for the determination of daidzein, genistein, daidzin and genistin in soybean extract by RP HPLC was established Methods Zorbax SB C 18 column (4 6?15 mm, 5 ?m) was used Daidzein and genistein were separated with mobile phase Ⅰ∶methanol acetonitrile 0 1% phosphoric acid solution (30∶8∶62) Daidzin and genistin were separated with mobile phase Ⅱ∶methanol acetonitrie 0 1% phosphoric acid solution (16∶24∶60) The UV detection wavelength was 254 nm Results The average recoveries of daidzein, genistein, daidzin and genistin were 98 7%, 99 5%, 98 4%, 98 6% and the precision (RSD) were 1 4%, 0 9%, 0 9%, 1 7% (n=4) respectively Conclusion: The method was accurate, rapid and with good reproducibility

Objective: To study the protection for Compound Zigui Capsule on climacteric syndrome and the mechanism of the action, connected clinical application.Methods: Ovaritectomized rats were used as model of climacteric syndrome and to observed the effects of Compound Zigui Capsule on weight and the index of the organ of OVX rats. Bone metabolism of OVX rats was examined by single photon radionulide emission computed tomograpy.Results: Compound Zigui Capsule could antagonize an increase in body weight and atrophy of the uterus of OVX rats. The estrogenic content and phosphoric level in serum increased significantly. Results of bone metaboism examination showed that the radioactive cound/weight(c/w t) increased. Conclusion: Compound Zigui Capsule had markedly effect on improvement of endocrine disorder, increase of weight, atrophy of the sexual organs and osteopenia in OVX rats.