Objective To compare of pregnancy induced hypertension caused postpartum hemorrhage by two treatment methods. Methods 104 patients with pregnancy induced hypertension were randomly divided into misopr-ostol plus oxytecin group ( observation group)54 cases and the control group ( 50 eases ), used oxytcoin alone, respec-tively, Results postpartum hemorrhage in The observation group of is five cases(9.2% )which was significantly low-er than the control group of 11 cases(22.0% ) ( X2= 3.95 ,P<0.05 ). average postparttun hemorrhage in observation group is ( 195.6±88.4) ml which was significantly lower than the control group (303.2±111.6) ml (t=2.31, P<0.05). Conclusion Misoprostol combined with oxytocin is effective, safe and convenient to patients with postpartum hemorrhage caused by pregnancy induced hypertension.

Atrial tumor myocytes (AT-1 cells) were derived from tumor-bearing mice in which SV40 T large antigen drives atrial natriuretic promoter. AT-1 cells possess many features typically seen in cardiac cells from other species, such as spontaneous beating, multiple ion channels and responses to drugs, etc. Major ion channels are present in AT-1 cells: sodium, calcium and potassium channels. Sodium channel in AT-1 cells is highly sensitive to blocker tetrodotoxin. L- and T-type calcium channels respond to classical blockers. An important outward potassium current in AT-1 cells is the rapidly-activating delayed rectifier (IKr). IKr Is the sole time-dependently repolarizing potassium current in AT-1 cells. AT-1 cells are a very useful tool for studies in cardiac electrophysiology and pharmacology. As yet, a great number of cardiac and non-cardiac drugs have been tested for their IKr blocking actions in AT-1 cells. The polymorphic ventricular arrhythmia (torsade de pointes) is a severe side effect of IKr blockers.

Objective To evaluate the efficacy of recombinant tissue-type plasminogen activator(rt-PA)and mild hypothermia for acute cerebral infarctions. Methods72 patients consistent with the inclusion criteria were randomly divided into 2 groups,hypothermia group receivied rt-PA combined with mild hypothermia and control group receiving rt-PA only.Neurological functions was evaluated with European Stroke Scale(ESS). ResultsAs intravenous thrombolytic therapy within 6h after the onset,the ESS scores examined 3 days after thrombolysis in hypothermia group was significantly higher than those in control group.As intravenous thrombolytic therapy during 6h to 12h after the onset,the ESS scores of hypothermia group increased more significantly from 24h after thrombolysis than those in control group. Conclusionft-PA combined with mild hypothermia was more effective than rT-PA only for acute cerebral infarctions,which was effective and relatively safe in the treatment of acute ischemic cerebral vascular disease.

Objective:To study the influence of cusp inclination of artificial posterior teeth on abutment displacement of unilateral distal-extension telescope crown denture.Methods:Study models of mandibular unilateral distal-extension and telescope crown dentures with the cusp inclination of 0?,12?,25? and 33? were respectively prepared. When food chip was masticated on the occlusal surface and the dentures were loaded by 29.4 N, 49 N or 68.6 N, the abutment displacement was measured.Then the data were calculated and reciprocally compared with statistical analyses. Results:Between anatomic and 25? semi-anatomic artificial posterior teeth, there were significant differences in the buccolingual and vertical abutment movement(P0.05). The parallel, inclination, twist-like and vertical movement of abutment increased with the increase of the load on the denture. The difference among different level of load was statistically significant (P

Objective To investigate the effect of mytomycin C in the operation of dacryocystorhinostomy for curing lacrimal passage obstruction. Method Forty-one patients with traumatic lacrimal passage obstruction were divided into treatment group (n=21, 14 males and 7 females with an average age of 32) and control group. (n=20, 12 males and 8 females with an average age of 35). The patients in treatment group received 0.4mg/ml of mytomycin C when undergoing dacryocystorhinostomy, while the patients in control group received no medicine when undergoing the same operation. Lacrimal passage was cleaned with water after operation, and the operational effectiveness of dacryocystorhinostomy were compared between the treatment group and control group. Results Twenty-one eyes were cured in treatment group, and the cure rate reached 100%. While for the 20 eyes in control group, 17 eyes were cured, and the cure rate was 85%. There existed statistical significance between the two groups (P

The bystander effect(BE) plays an important role in the gene therapy of cancer by the herpes thymidine kinase/ganciclovir(HSV-TK/GCV) system.It enhances the therapeutic efficacy of this system.Up to now,the exact underlying mechanism of the bystander effect remains unclear.A large body of evidence has indicated a close correlation of the connexin expression and gap junction in the targeted cells to the bystander effect.Here the publications concerning the relationship of gap junction with the bystander effect in the HSV-TK/GCV treatment have been reviewed.The possible cell death signals that can be transferred through gap junction to induce the bystander effect are also discussed.

For the past few years, incidence of tuberculotic disease inceased stablely, spinal tuberculosis, as the highest incidence of tuberculosis of bones and joints, has been the focus of the orthopedist study. With the development of recognization of spinal tuberculosis and spinal internal fixation technology, the treatment of spinal tuberculosis has been made a great progress, especially in surgical therapy, many new ways have been found in selection of surgical cases, preparation of surgery, surgical skills and surgical postprocessing. Now summarization is made in this paper.

Electret filtration material is a kind of promising new air filtration material due to the advantages of high filtration efficiency,low flow resistance,power saving and anti-bacteria.In the paper the concept of electret,primary raw material of electret filtration material,the characteristics of electret filter material,charging method to make electret and the influence of charging technology on the charge storage characteristic of electret filter material were introduced,the application of electret filtration material on air purification was described also.

In recent years,with the rapid development of minimally invasive spine surgery,lumbar disc herniation of minimally invasive treatment is an important progress.The operative injury is small,the duration is short and the effect is satisfactory.Correct recognition of microinvasive surgery,strictly grasp of its indication and perfect operative techniques are the keys to get good therapeutic efficacy.In this review,various methods of minimally invasive techniques and their clinical applications are summarized.

Objective To establish a new method for assessing the effects of environmental factors on human health.Methods Based on the environment part of the frame for comparative risk assessment(CRA) of WHO,the frame and index system for environmental contamination risk assessment which accorded with the situation in China was developed.With the prevalence of different exposure level,RR and the choice of counterfactual scenario,the potential impact fraction(PIF) was estimated.Then an example on the study of liver cancer related with water pollution was used to show the new frame.In this example,the contaminated water was regarded as the environmental factor,incidence of liver cancer was regarded as variable of health,and the analysis was performed with spatial interpolation,counterfactual analysis and CRA theory.Results The quantity of COD of river water in this area was estimated with ordinary Kriging interpolation,and the accumulated exposure of COD was calculated with the trend of annual COD,and the number of population exposed to COD was estimated at same time.In accordance with the different level of pollution and the RR relate to liver cancer,the trend with monotonically increasing showed.At same time,the values of PIF illuminated that 75.72% in male and 66.39% in female would avoid death for liver cancer if the level of contaminated water could be reduced to the level of the control areas.Conclusion The frame includes CRA,spatial analysis and counterfactual analysis is a good approach to assess the health effects of environmental factors.