Objective In order to provide a large quantity of retinal pigment epithelial cells (RPE cells) in vitro, we want to estab-lish method for culturing pig RPE cells. Methods RPE cells were separated with trypsin and cultured in vitro. The cells were identified by immunohistochemical staining with anti-human keratin and transmission electron microscope (TEM). Results Cultured RPE cells gradually presented transparent and fusiform shape. Immunohistochemical staining demonstrated that the cells were stained by anti-human keratin, and the cultured cells showed typical ultrastructure of RPE cells. Conclusion The cultured cells may be the foundation of pig RPE cells.

OBJECTIVE: To validate the method for microbial limit test of Niuhuang jiedu tablet.METHODS: The recovery rates of 5 kinds of test organisms including E.coli treated by Niuhuang jiedu tablets were determined by routine method,culture medium dilution method,centrifugation and membrane-filter method,respectively.RESULTS: The centrifugation and membrane-filter method was suitable for determination of the bacterial number of Niuhuang jiedu tablets,while routine method was applicable for determination of bacterial numbers of mold and yeast and test of control bacteria in the microbial limit test.CONCLUSION: The contaminated bacteria in Niuhuang jiedu tablet can be detected accurately by the method established in this study.

Objective:To suggest approaches for the establishment of Chinese standards for defining rare disea-ses and advance corresponding Chinese legislation. Methods:By comparing the standards for defining rare diseases in Europe, the United States, and other countries and studying key influencing factors of standards, this paper proposes suggestions for the establishment of proper Chinese standards for defining rare. Results and Conclusion:Social and e-conomic development levels, medical development levels and social security levels influence the establishment of standards. It is recommended that the national conditions should be taken into consideration and the number of pa-tients, severity of the diseases and economic indicators of orphan drugs be used to define rare diseases in China.

Objective To investigate the correlation between hyperuricemia and obesity in children.Methods 316 children who went to the hospital for treatment of obesity were enrolled in the study as obesity group.Age and sex-matched children with normal body mass index(BMI)were randomly recruited as control group.Fasting venous blood samples were collected for the detection of serum uric acid(UA),glucose(GLU),total cholesterol(CHOL),triacylglycerol (TG),high-density lipoprotein cholesterol(HDL-C) and low-density lipoprotein cholesterol(LDL-C).Results Compared with the control group,serum concentrations of UA,CHOL, TG and LDL-C were higher while HDL-C was lower in obese children,the difference was statistically significant(P <0.05 ).The detection rate of hyperuricemia in obese children was 24.68%,and in control group was 9.49%,the difference was statistically sig-nificant(P <0.05 ).Serum UA concentration was positively correlated with TG,CHOL and LDL-C,negatively correlated with HDL-C.Conclusion Obesity can lead to higher serum UA concentration and abnormal lipid metabolism.The level of serum UA was correlated with abnormal lipid metabolism.

Leukocytes from peripheral blood of 70 normal Chinese,40 males and 30 females, were cultured in vitro according to a modification of Moorhead's method.Chromosome studies were carried out.Table I lists the results obtained including age group,metaphase plates counted and analysed and the chromosome number of each cell.92.4 per cent of 8031 counted cells had the diploid number(2n=46).Chromosome measurements were made from camera lucida drawings.Measurements were estimated to the nearest 0.1 mm on a fine metric scale.The relative length,arm ratio and centromere index of each chromosome were calculated from measurements of 18 haploid chromosome sets of 11 metaphase plates in 6 males and 4 females.The averages,range of variation and 99% confidence limits are listed in Table Ⅲ.Systematic studies of individual chromosomes under the light microscope revealed the following morphological characteristics.The short arms of all 10 acrocentric chromosomes from groups 13—15 and 21—22 could be shown to possess satellites,but in general only 2—8 of these chromosomes at a time carried satellites.In many cells the satellite-carrying chromosomes tended to associate with each other through their satellites.The number of chromosomes involved in each association varied between 2 to 5,occasionally 6.It was not rare to find secondary constrictions to occur regularly in certain regions of chromosomes 1,4,9,13,and 16.Attachments of satellites to such regions of chromosomes 1,4,9,and 13 were also observed.Karyotypic analysis of 357 metaphase plates led us to conclude that in most cases the unequivocal identification of chromosome pairs 4—5,6—12+X,13—15,19—20,and 21—22 was im- possible.Accurate characterisation of these chromosome pairs will have to await further technical advances. The length of the Y chromosomes was systematically measured in order to deter- mine its variability and heritability.Among our sample of 40 male subjects 29 had a Y chromosome slightly larger than chromosome 21,8 slightly smaller or larger than chromo- some 18(long Y chromosome),and 3 smaller than chromosome 21(short Y chromo- some).The heritability of the size of the Y chromosome was established(Fig.Ⅳ). “Spontaneous”aberrations were discovered in 34 of 70 cases.Aberration rates varied from 0.88 to 13 per cent.The relation between aberrations and radiation injuries was briefly discussed.

Objective To study the clinical effect of small incision cataract extraction in the treatment of acute angle-closure glaucoma with cataract.Methods Fifty-eight patients with acute angle-closure glaucoma combined with cataract were selected,and according to the digital table they were randomly divided into two groups:control group and observation group.The patients in the control group were treated by conventional method.The patients in the observation group were treated with small incision cataract.The changes of intraocular pressure,anterior chamber depth and visual acuity before and after treatment were observed.The incidence of complications and the satisfaction of treatment were compared between the two groups.Results There were no significant differences in IOP,visual acuity and anterior chamber depth between the two groups before treatment(all P>0.05).After treatment,the intraocular pressure,anterior chamber depth and visual acuity of the observation group were (10.2±4.0)mmHg,(3.3±0.5)mm,(0.85±0.08),respectively,which of the control group were (17.5±5.0)mmHg,(3.2±0.5)mm and (0.50±0.06),respectively.The improvement of intraocular pressure and anterior chamber depth of the observation group was more significant than the control group(t=0.120,0.520,1.012,all P<0.05).The satisfaction rate of the observation group(96.6%) was higher than that of the control group(75.8%)(χ2=9.823,P<0.05).There was no significant difference in the incidence of complications between the two groups(P>0.05).Conclusion Small incision cataract extraction is an effective treatment for acute angle-closure glaucoma complicated with cataract,and the postoperative complications are less.The patients are satisfied with the treatment and deserve to be popularized.

Objective To study the curative effect of traditional chinese medicine combined with noninvasive ventilation on respiratory failure in patients with acute exacerbation of chronic obstructive pulmonary disease.MethodsThe patients were divided into experimental group (n=37) and control group (n=37).The experimental group was treated with traditional chinese medicine combined with noninvasive ventilation.The control group was treated with noninvasive ventilation method.The heart rate, blood gas analysis index, ventilation index and complication were compared between the two groups before and after treatment.ResultsAfter treatment, the levels of PaO2 in the two groups were not significantly different.The heart rate and PaCO2 of the experimental group were significantly lower than those of the control group, while the pH value and SaO2 were significantly higher than those in the control group (P< 0.05), and the total incidence of complications was 21.62%, which was significantly lower than that of the control group (64.86%, P<0.05).The time of infection control window, the highest PEEP and the time of mechanical ventilation were significantly shorter than those of the control group (P< 0.05).ConclusionThe treatment of patients with acute exacerbation of chronic obstructive pulmonary disease(COPD) combined with noninvasive ventilation therapy can significantly improve the heart rate and blood gas analysis indexes, and optimize the noninvasive ventilation efficiency, control lung infection as soon as possible, shorten the time of noninvasive ventilation and reduce the side effects that noninvasive ventilation brought about.

Objective To investigate and analyze the status quo of job satisfaction of nurses in a large 3-A-grade hospital in Tianjin. Methods Using stratified random sampling method, the general information questionnaire and the nurse job satisfaction scale were used to investigate the cross-sectional survey of 435 clinical nurses in large 3-A-grade hospital in Tianjin. Results The score of job satisfaction was (123.54±15.52) points, which was at the middle level. According to single factor analysis, there were significant differences in the influence of nurses′ job satisfaction on age, working life, department, monthly average night shift frequencies, monthly gross income (F=2.238-7.622, all P<0.05). There was a significant difference in job satisfaction among nurses with different income(F=2.642, P=0.049), among whichwork load,relationship with colleaguesandjob itselfhad the most significant impact on job satisfaction(F=2.667, 6.087, 4.023, all P<0.05). Conclusions Nursing managers should be rational allocation of human resources, reduce the workload of nurses, to build a harmonious atmosphere in the team, to create a good working environment, provide a better career development platform for nurses, implement flexible management, improve nurses′job satisfaction.

82 spastic cerebral palsy and normal children were selected, including 27 younger and 27 older spastic cerebral palsy( observation group) ,and 14 younger and older normal children( control group) . The tumor necrosis factor α( TNF-α) levels were measured in the serum with ELISA. The TNF-α levels in the serum of the younger and older spastic CP groups were higher than those of the control groups ( P<0.01 ) . In observation groups, the TNF-α levels of younger spastic cerebral palsy were higher than those of the older (P<0.01). On the contrary, the normal children in the control group of different ages had no difference of TNF-α. TNF-αexpression was signifi-cantly higher in the serum of the spastic CP group than that in the control group ( P<0.01 ) . TNF-α expressed continuously in vivo of children with spastic cerebral palsy involve subsequent brain injury.

Transjugular intrahepatic portosystemic shunt (TIPS) has been developed for two decades in order to treat portal hypertension accompanying with upper gastrointestinal hemorrhage and refractory ascites.TIPS may cause the development of hepatic encephalopathy (HE).TIPS induces portalsystemic shunt and leads to hemodynamics chaos. Hepatic encephalopathy belongs to the complications of the portal hypertension. There are many possible predictors of the post-TIPS HE. The relationship between TIPS and HE was reviewed.