China ; Emigration and Immigration ; Immunization Programs

Objective To construct an efficient SALL4 shRNA vector and transfect it into THP-1 cells for investigating the effect of SALL4 in leukemia. Methods Four SALL4-specific siRNA to aim at different SALL4 mRNA target sites and a negative control siRNA were designed, and pGPU6/GFP/Neo/SALL4 shRNA vectors were constructed. THP-1 cells were transfected and the expression of SALL4 in shRNA detected, and blank control and negative control were also designed. Results The results of real time quantitive PCR and Western blotting both exhibited that the interference effect of pGPU6/GFP/Neo/SALL4 shRNA-B vector was optimal targeting to mRNA-1122 target site and down-regulated the expression of SALL4 more significant(P <0.05). Conclusion Successfully construction of SALL4 siRNA vector by choosing SALL4 shRNA-B would be useful to accomplish study of SALL4.

Objective To investigate the effects of angiotensinⅡ (AngⅡ) on the Apelin mRNA and APJ mRNA expression in pulmonary microvascular endothelial ceils (PMVECs) in rats. Methods Pulmonary microvascular endothelial ceils obtained from 24 h old neonatal SD rats were cultured in DMEM liquid culture medium. The 2nd-4th generation PMVECs were inoculated on 6-well plates (5×105). The experiment was performed in two parts. In part Ⅰ different concentration of AngⅡ 0, 10-9, 10-8, 10-7, 10-6mol/L (group Ⅰ- Ⅴ) were added into the PMVECs. The expression of Apelin mRNA and APJ mRNA was determined at 24 h after addition of Ang Ⅱ by RT-PCR. In part Ⅱ the cells were exposed to 10-7 mol/L Ang Ⅱ. The expression of Apelin mRNA and APJ mRNA was determined immediately and at 1, 6, 12, 24, 48 h(group Ⅰ-Ⅵ) after addition of Ang Ⅱ by RT-PCR. Results In part Ⅰ Apelin mRNA expression was significantly higher in group Ⅱ (Ang Ⅱ 10-9 mol/L) but lower in group Ⅲ-Ⅴ (AngⅡ 10-8, 10-7, 10-6 mol/L) than in group Ⅰ (control, Ang Ⅱ 0 mol/L). The APJ mRNA expression was significantly lowered in group Ⅱ-Ⅴ in a dose-dependent manner as compared with control group (group Ⅰ). In partⅡ beth Apelin mRNA and APJ mRNA expression exhibited a bi-phasic response to AngⅡ 10-7 mol/L, increased at first and was then decreasing with time. The Apelin mRNA and APJ mRNA expression reached the peak at 1 h of incubation with Ang Ⅱ respectively. Conclusion Ang Ⅱ decreases both Apelin mRNA and APJ mRNA expression in PMVECs in a dose and time dependent manner. The down-regulation of Apelin mRNA and APJ mRNA expression may be involved in the mechanism of injury to PMVECs.

In the present study,the trachea of 17 new borns and 10 animals, including rabbits, dogs and monkeys were used. The neural elements were visualized by Cajal-Faworsky silver impregnation and osmic acid techniques. Specimens were cut in to sections by freezing microtome and stained by Gros—Bielchowsky method.Branches from the recurrent laryngeal and vagus nerves pass to the trachea,dividing and rejoining to form a mesh-like plexus outer to the cartilage. Fibers of the posterior parts of the plexus appear as a well-defined longitudinal chain of nerves. The branches from this plexus re-form a primary, secondary and tertiary plexuses in the membrane of cartilage plates, in the muscle, the submucous regions and the mucosa.Parasympathetic effector neurons were mostly found in the posterior and lateral wall, on rare occasions the anterior wall.A profuse supply of predominantly unmyelinated fibres innervates the muscle,blood vessels and glands, and the plexuses supplying these structure apparently communicate with each other. They also contain some thinly myelinated fibres.In the layer of smooth muscle the nerve fibres give off fine collaterals and end in knob-like or arrowheaded swellings. The fibres of subepithelial plexuses branch rectangularly and pass between the epithelial cells. All these fibers terminate in knobs which lie among the deep epithelial cells.

ObjectiveTo compare the early rehabilitation of child with brain impair syndrome and cerebral palsy executed in hospital and in family.Methods180 children of 0～2 years old with brain impair syndrome and cerebral palsy were divided into group A and group B randomly. The children of 0～6 months old were in group A1 and group B1, while that of 6 months～2 years old were in group A2 and group B2, correspondingly. Children in group A accepted early formal strengthen rehabilitation training in hospital, and that in group B accept family rehabilitation through guidance. Development quotient (DQ) were assess with Japan Yuanchengsi infant analysis growth scale half a year after.ResultsThe DQ of group A showed higher than that of group B(P<0.01), and DQ of group A1 was higher than DQ of group A2(P<0.05).ConclusionEarly rehabilitation training in hospital is more effective on early cerebral palsy.

Developmental Disabilities ; diagnosis ; etiology ; genetics ; Humans ; Nervous System Malformations ; diagnosis ; etiology ; genetics

Objective To evaluate the statues of P-selectin and chang of D-dimer in vivo in patients with deep venous thrombosis(DVT)and to observe how to vary under interneving of medicines.Methods P-selectin and D-dimer of fourty patients and twenty normal subjects were fluo-rescencelabled with its corresponding monoclonal antibodies by flow cytometry(FCM)and immune method respectively.Results In the early stage,P-selectin and D-dimer of patients with DVT is higher than that in normals,and they significantly decreased in different time after patients were treated.Compared with patients who were used on-sodium ozagrel,patients used sodium ozagrel have different P-selectin(P＜0.05),but D-dimer was similar(P＞0.05)after fourteen days.One month later,P-selectin and D-dimer of DVT patients were lower.However,the positive rate of P-selectin of DVT was still higher than normal subjects.Conclusions The platelet has been actived in vivo in patients with DVT,so do fibrinolysis.Sodium ozagrel can decrease the action of platelet.P-selectin and D-dimmer may be used in diagnose.Post-discharge patients are still high-risk group and must be followed-up regularly.

OBJECTIVE： To discuss the selectivity of enatiomers of clinically used asymmetric drugs.METHODS： To exsamplify this issue in respect to pharmacokinetic characteristics,pharmacodynamic properties and clinical application of asymmetric drugs.RESULTS ＆ CONCLUSION： The enatiomers of asymmetric drugs assume complex pharmacokinetic and pharmacodynamic characteristics.Thorough study of enatiomers of asymmetric drugs will exert great influence on rational use of asymmetric drugs.