In order to approach the mechanisms of Chinese drug Bu Sui Sheng Xue Instant Granules for tonifying kidney inhibiting apoptosis in the patient of chronic aplastic anemia (CAA), levels of soluble Fas (sFas), tumor necrosis factor (TNF-a), interleukin - 2 (IL - 2) before and after treatment were determined in 30 cases of CAA and Zai Zang Sheng Xue Tablet was used as control. Results indicated that expression of serum sFas, TNF - a and IL - 2 before treatment was significantly higher than those of the control group (P0. 05), and the IL-2 level still was higher than the normal (P

A data link-based information aggregation model was established by analyzing the dimensions, approaches, model and its application scope of case specific information aggregation according to the link between information characteristics and the link between information use processes followed by a substantial evidence analysis of information aggregation with Middle East Respiratory Syndrome as an example, which showed that the model can be used in case analysis of health field.

Objective To research the visualization of congenital heart disease by three-dimensional echocardiographic(3DE) virtual endoscopy(VE) system. Methods Datasets.from 10 healthy children and 22 patients with congenital heart disease were collected (10 patients with atrial septal defects, 6 patients with ventricular septal defects and 6 patients with tetralogy of Fallot). 3DE heart models were reconstructed by virtual reality computing techniques and visualization in scientific computing techniques. The VE system was programmed under the C++ 6.0 language condition,the visualization toolkit (VTK) platform was employed to carry out the graphics and visualization utilities. The virtual eye can move along the navigation paths in the heart by manual camera movements. Results The VE can provide special information in aspects of intracardiac anatomy, The visible heart models show precisely complex anatomy structure and spatial relationships. 3DE intracardiac endoscopic imaging can thus be visualized and navigated successfully by the VE system. Conclusions 3DE VE is a new system for the visualization of congenital heart disease.

To investigate the effect of losartan on the axis of prolylcarboxypeptidase (PRCP)--kallikrein of the two-kidney, one-clipped (2K1C) hypertensives rats, and explore the novel protection mechanism of losartan on the kidney. Sprague-Dawley (SD) rats were used to develop the 2K1C hypertensive rats. Then, the rats were treated with prazosin (5 mg x kg(-1) x d(-1)) or losartan (5, 15 and 45 mg x kg(-1) x d(-1)) or vehicle, separately. At the same time, the blood pressures were observed. After treated for four weeks, the ratio of right kidney weight and body weight, the change of glomerular morphology, and K+, Na+, creatinine and blood urea nitrogen (BUN) of the serum were used for evaluation of kidney. The expressions of PRCP mRNA in the kidneys were determined by RT-PCR. The protein levels of PRCP, tissue kallikrein, plasma kallikrein, TGF-beta1 in kidney or plasma were measured by Western blotting. Results showed that the changes of body weight and kidney weight ratio, glomerular fibrosis degree and the biochemistrical index of serum induced by hypertension were relieved when the hypertensive rats treated with losartan for four weeks. Meanwhile, treatment of losartan also significantly decreased expression of TGF-beta1 and increased expressions of PRCP, plasma kallikrein and tissue kallikrein. The protective effects of losartan on the kidney of 2K1C hypertensive rats are activation of the axis of PRCP-kallikrein and reducing the expression of TGF-beta1.

Objective To study the impacts of B7-H3 molecule on the proliferation of T lymphocytes in different activation conditions and on the secretion of relevant cytokines.Methods Peripheral blood samples were collected from healthy subjects to separate peripheral blood mononuclear cells (PBMC) by Ficoll density gradient centrifugation.T lymphocytes were isolated from some of the PBMCs and purified with T Cell Enrichment Kit.PBMC and purified T lymphocytes were activated by anti-CD3/CD28 monoclonal antibodies (McAb) in vitro.Flow cytometry analysis was used to detect the expression of CD28 and CTLA-4 on T lymphocytes at different time points for further analyzing the activation states of T lymphocytes.On this basis, human B7-H3-Fc fusion protein was added into the mixed co-cultivation system on days 0, 1, 2, 3 and 4, and Hu-Fc fusion protein was used as isotype control.CCK-8 method was performed to detect the proliferation of T lymphocytes in each group.ELISA method was used to detect the secretion of cytokines (IL-2, IL-10 and IFN-γ) and to analyze the immune responses induced by stimulating T lymphocytes at different states of activation with B7-H3.Results B7-H3 molecule significantly inhibited the quiescent T lymphocytes from secreting IL-2 and IL-10, but had no significant impact on IFN-γ secretion.Moreover, it significantly promoted the activated T lymphocytes to secret IL-2 and IFN-γ, but had no obvious impact on IL-10 secretion.Results of the cell proliferation assay showed that B7-H3 molecule inhibited the in vitro proliferation of T lymphocytes in the PBMC, but had no obvious impact on purified T lymphocytes.ConclusionThe regulatory effects of B7-H3 molecule on the immune functions of T lymphocytes vary with the activation states of T lymphocytes.

FabB(?-ketoacyl-acyl carrier protein synthase Ⅰ)and FabF(?-ketoacyl-acyl carrier protein synthase Ⅱ)are two key enzymes of fatty acid biosynthesis in E.coli.The Gram-positive pathogenic bacterium Enterococcus faecalis has a fatty acid composition very similar to that of E.coli.Bioinformatic analysis reveals that though E.faecalis has two fabF homologues,there is no recognizable fabB homologue in the genome of E.faecalis.Two fabF homologues(fabF1 and fabF2)were amplified by using E.faecalis V583 genomitic DNA as template,and two plasmids,pHW13(fabF1)and pHW14(fabF2),were constructed.The results of experiments in vivo and in vitro have shown that fabF1 gene could complement E.coli fabB mutation and FabF1 possessed ?-ketoacyl-acyl carrier protein synthase Ⅰ(FabB)activity,while fabF2 gene could complement E.coli fabF mutation and FabF2 had ?-ketoacyl-acyl carrier protein synthase Ⅱ(FabF)activity.Meanwhile the data also shown that FabF2 possessed partial function of ?-ketoacyl-acyl carrier protein synthase Ⅰ(FabB),and it could make E.coli fabB mutation synthesized low amount of unsaturated fatty acid.From these data it is clear that FabF species enzymes could have activity of ?-ketoacyl-acyl carrier protein synthase Ⅰ(FabB).

Seven genes (fabD, fabG, fabH, fabA, fabZ, fabB and fabI) of E.coli fatty acid biosynthetic enzymes were cloned by PCR amplifying and appropriate expression vectors were constructed. Under induction assay expression of plasmid encoded proteins was carried out in strain BL21(DE3) and seven enzymes were purified using Ni-NTA agarose resin. In the absence of [2-14C] malonyl-CoA fatty acid synthetic reaction was reconstituted in vitro by adding seven enzymes and co-factors. And several model reactions were established for identification of special fatty acid biosynthetic enzymes. Meanwhile Clostridium acetobutylicium FabZ function was characterized by this method.

A device for promoting normal locomotor activity recuperation was made, which was composed by frame, elastic bolt and normal gait mark carpet. The device has the effects of weight relieving, abnormal gait preventing, and safeguards providing. The patient could do gait training by he/her self or assistant self training under the weight reducing and protecting of the device in order to improve the walking ability and the normal gait formation. It is effective for preventing drop foot and leg adduction, and also helpful for the recovery of normal gait ability and the prevention of abnormal gait formation. It is applicable for the patient who can not be trained with ordinary weight relief walking training, such as severe cerebral palsy and severe spasmodic lower extremity and foot drop after brain injury. The results demonstrated that the device is effective in protecting, correcting, preventing abnormal gait as well as forming normal gait.

To make a portable apparatus for the patient self-doing joint voluntarily exercise that is keeping with the training demand of human body potential and muscle strong. Different kinds of spring belts are used for joint exercise apparatus according to the needs of joint exercise. Though active joint extension and flexion by using the method of Chinese physical and breathing exercises, the exercise was done by drawing the spring belt. The extremity multifunctional training box is easy for carrying and sutble for each mussel be trained. Because of the wide range of back spring power, it is easy to reach the best training mount and to do the continually training under the biggest training mount. It is beneficial to the joint active function improvement. From June 2006 to February 2008, this kind of apparatus was used in 30 patients with footdrop at the Beijing Tongren Hospital, Capital Medical University. The design of the extremity multifunctional training box is reasonable, and it is easy for carrying and operating. It is also helpful for the patient to do muscle exercise themselves, and the joint function can be persisted and improved by continual exercise using this apparatus.