Objective To investigate the quality of life of nurses group in Shenzhen city and explore its influencing factors, so as to provide evidence for health policy making health promotion and science research. Methods Self-designed questionnaires were used in social demography survey and SF-36 was adopted to survey 495 in-service nurses on front line from four hospitals in Shenzhen. Paired samples t Test and multivariable stepwise regression were carried out to analyze the quality of life among nurses in Shenzhen city and general population in China. Results The data showed the scores of the physiological domain, psychological domain and quality of life nurses in Shenzhen city and Chinese general population was (68.60±17.61), (69.91±17.91), (67.29±20.29)and (78.18± 15.88), (79.36±17.00), (77.00± 17.42), respectively. The difference had statistical significance. Multivariable stepwise regression showed that quality of life was positively correlated with APN scheduling, education, department, monthly income, working range, age and the hospital level in descending sort Conclusions Health authorities, hospital leaders and nurses-selves should pay more attention to the quality of life for nurses group and take positive mea-sures to improve quality of life of nurses group.

Crystallization ; Eosinophils ; enzymology ; Fascioliasis ; pathology ; Granuloma ; pathology ; Humans ; Liver ; pathology ; ultrastructure ; Lung ; pathology ; ultrastructure ; Lung Diseases, Parasitic ; pathology ; Lysophospholipase ; metabolism ; Paragonimiasis ; pathology

Objective To investigate the meaning of expression of apoptosis related molecules NFKBp65 and p53 and GPX1-mRNA in patients with Keshan disease(KSD).Methods Sixteen chronic Keshan Disease patients were enrolled in KSD group according to electrocardiogram,chest X ray film and clinical examinations on 15,September in 2009,and 23 healthy people were included in control group from physical examination taken in The Second Affiliated Hospital of Xi'an Jiaotong University.Fresh blood(5 ml)was collected from antecubital vein of all subjects in the fasting state.Total mRNA and protein of blood sample were isolated using Trizol.GPX Assay Kit was used to detect GPX enzyme activity,and GPX1-mRNA expression was determined by SYBR Real-Time PCR.Meanwhile,expression of apoptosis related molecules NFKBp65 and p53 were determined by Western blot.Results GPX enzyme activity decreased significantly in KSD group[(108.61±14.10)U]compared with control group[(122.78±11.89)U,t=2.874,P<0.05],GPX1-mRNA level of KSD group(0.553±0.299)notably KSD group(0.802±0.057)compared with control group[(1.065±0.355),t=6.829,P<0.01].p53 increased in KSD group(1.604±0.191)compared with control group[(1.137±0.186),t=3.033,P<0.05].Conclusiom Decreased GPX1-mRNA expression may result in lower GPX enzyme activity of patients with KSD.Thus oxidative damage increases and cadioeyte apoptosis is activated by activating apoptosis signal pathway.

Actins ; metabolism ; Aged ; Aged, 80 and over ; Carcinoma, Renal Cell ; metabolism ; pathology ; Cell Differentiation ; Female ; Humans ; Immunohistochemistry ; Keratin-7 ; metabolism ; Keratin-8 ; metabolism ; Kidney Neoplasms ; metabolism ; pathology ; Male ; Middle Aged ; Sarcoma ; metabolism ; pathology ; Vimentin ; metabolism

Mesenchymal stem cells (MSCs) were induced into a nucleus pulposus-like phenotype utilizing simulated microgravity in vitro in order to establish a new cell-based tissue engineering treatment for intervertebral disc degeneration. For induction of a nucleus pulposus-like phenotype, MSCs were cultured in simulated microgravity in a chemically defined medium supplemented with 0 (experimental group) and 10 ng/mL (positive control group) of transforming growth factor β1 (TGF-β1). MSCs cultured under conventional condition without TGF-β1 served as blank control group. On the day 3 of culture, cellular proliferation was determined by WST-8 assay. Differentiation markers were evaluated by histology and reverse transcriptase-polymerase chain reaction (RT-PCR). TGF-β1 slightly promoted the proliferation of MSCs. The collagen and proteoglycans were detected in both groups after culture for 7 days. The accumulation of proteoglycans was markedly increased. The RT-PCR revealed that the gene expression of Sox-9, aggrecan and type II collagen, which were chondrocyte specific, was increased in MSCs cultured under simulated microgravity for 3 days. The ratio of proteoglycans/collagen in blank control group was 3.4-fold higher than positive control group, which denoted a nucleus pulposus-like phenotype differentiation. Independent, spontaneous differentiation of MSCs towards a nucleus pulposus-like phenotype in simulated microgravity occurred without addition of any external bioactive stimulators, namely factors from TGF-β family, which were previously considered necessary.

OBJECTIVETo understand the status of standard medication of antiretroviral therapy and identify its correlationship with preventing mother-to-child transmission of HIV (PMTCT).

METHODSQualitative and quantitative methods for measuring of standard medication towards antiretroviral therapy of PMTCT were used in a cross-sectional study of 167 pregnant women who had accessed to PMTCT services and 57 physicians providing service from January 2005 to June 2007 in 5 HIV epidemic counties in Yunnan province.

RESULTSA total of 167 mothers were recruited, of which 65.87% (110/167) demonstrated for standard medication. The percentage of rational selection of antivirus-therapy regimen was 88.02% (147/167). HIV positive mothers with rational using medicine during labor covered 81.37% (131/161). 87.42% (146/167) of women demonstrated good compliance. The main correlations with the standard medication level of HIV positive pregnant women and their infants were as follows: diagnose time (OR = 2.617; 95% CI: 1.184 - 5.783), place of delivery (OR = 0.064; 95% CI: 0.007 - 0.607), minorities (OR = 0.344; 95% CI: 0.162 - 0.730), understanding of HIV women for antiretroviral therapy (OR = 6.843; 95% CI: 1.449 - 32.312), and doctors' cognition about the regimen for antiretroviral therapy was not enough; 5 key knowledge points (purpose of PMTCT, the consequence of not requiring standard medication, the effect of knowing regimens, the relationship of CD4 levels and selected regimens, the side effect of the relevant medicine) score rate was 47.72% (136/285).

CONCLUSIONThe proportions of standard medication in PMTCT antiretroviral therapy were not high. Standard medication might be associated with multiple factors from doctors, patients and society. It is necessary to make some steps to improve standard medication of antiretroviral therapy in PMTCT.

Anti-HIV Agents ; therapeutic use ; China ; Cross-Sectional Studies ; Female ; HIV Infections ; drug therapy ; prevention & control ; transmission ; Humans ; Infectious Disease Transmission, Vertical ; prevention & control ; Pregnancy ; Pregnancy Complications, Infectious ; drug therapy

Child ; Child, Preschool ; Electroencephalography ; Female ; Humans ; Male ; Monitoring, Physiologic ; Prognosis ; Status Epilepticus ; physiopathology ; therapy

OBJECTIVETo study the effect of Tongluo Xingnao effervescent tablets on learning and memory capacity and expression of Na(+)-K(+)-ATPase in hippocampus of rats with chronic cerebral ischemia-induced learning and memory dysfunction model.

METHODThe 2-VO method was used to establish sd rat model learning and memory dysfunction induced by chronic cerebral ischemia. The 50 rats in the successfully established model were randomly divided into the model control group, the Dihydroergotoxine Mesylate tablets group (0.7 mg x kg(-1), Tongluo Xingnao effervescent tablets high dose (7.56 g x kg(-1)), middle dose (3.78 g x kg(-1)) and low dose (1.59 g x kg(-1)) groups and the sham operation group (n = 10) as the control group. The groups were orally given 10 ml x kg(-1) x d(-1) drugs for consecutively 90 days. On the 86th day, Morris water maze was adopted for them. On the 90th day, a leaning and memory capacity test was held. The brain tissues were fixed with 10% formaldehyde and observed for pathomorphism after routine slide preparation and staining. The expression of hippocampal Na(+)-K(+)-ATPase was detected with immunohistochemistry and image quantitative analysis.

RESULTCompared with the model group, all of Tongluo Xingnao effervescent tablets groups showed significant decrease in the escape latency at the 5th day in the Morris water maze, and notable increase in the frequency of the first quadrant dwell, the frequency passing the escape platform and the frequency entering effective area (p < 0.05). According to the pathomorphological detection, the control group showed a significantly higher pathological score than the sham operation group (p < 0.01), the middle dose group showed a significantly lower pathological score than the model group (p < 0.05). According to the immunohistochemistical detection, the model control group showed a remarkably lower mean OD value of Na(+)-K(+)-ATPase than the sham operation group (p < 0.05), high and middle dose groups showed a significantly higher mean od value than the model control group (p < 0.01).

CONCLUSIONTongluo Xingnao effervescent tablets can improve the learning and memory capacity, reduce pathological changes of hippocampal tissues of rats with chronic cerebral ischemia-induced learning and memory dysfunction model, and promote the expression of Na(+)-K(+)-ATPase in hippocampus.

Animals ; Brain Ischemia ; drug therapy ; enzymology ; genetics ; psychology ; Chronic Disease ; drug therapy ; psychology ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Hippocampus ; drug effects ; enzymology ; Humans ; Learning ; drug effects ; Male ; Memory ; drug effects ; Rats ; Rats, Sprague-Dawley ; Sodium-Potassium-Exchanging ATPase ; genetics ; metabolism ; Tablets ; administration & dosage

OBJECTIVETo study the influence of manufacture technique on the translucency and color of dental porcelain.

METHODSSpecimens were made of VITA VMK 95 dentin porcelain and enamel porcelain and divided into 3 groups: Sintering times group (1, 2, 4, 6, 8 and 10 times), sintering temperature group (910, 920, 930, 940 and 950 degrees C), sintering vacuum group (95, 65, 35 and 0 kPa). Transmittance, Y, dominant wavelength and saturation were measured by PR-650 spectra scan spectrocolorimeter.

RESULTSTransmittance of dentin porcelain increased after 6 times repeated sintering. Transmittance of enamel porcelain increased first after the second sintering, and then became decreasing when sintering more than 2 times. Transmittance of enamel porcelain deceased when sintering temperature was lower than standard. Decrease of sintering vacuum caused the transmittance of dentin and enamel porcelain decreased. The changing of value was coordinated with transmittance. Dominant wavelength and saturation had negative correlation with sintering times and temperature, and positive correlation with vacuum.

CONCLUSIONSintering times, temperature and vacuum all had prominent effects on the translucency and color of dental porcelain. Comparing with dentin porcelain, enamel porcelain was more sensitive with the modification of manufacture technique.

Color ; Dental Alloys ; Dental Enamel ; Dental Porcelain ; Dentin ; Humans ; Temperature

OBJECTIVETo observe the effects of water decoction of the root of Crataegus cuneata on infertility induced by multi-glucoside of Tripterygium wilfordii (GTW) in rats.

METHODMale adult rats were randomly divided into five groups, which were treated via gastric gavage of distilled water (1 mL x kg(-1)) , solution of GTW (10 mg x kg(-1)) and three doses of water decoction of root of C. cuneata (1.8, 5.4, 18 g x kg(-1)) + GTW (10 mg x kg(-1)), respectively. 8 weeks later, GTW was stopped and the decoction and water continued for another 4 weeks. And then, all the male rats were copulated with adult female rats. The rates of pregnancy, average numbers of embryos and luteum of female rats, relative weights of reproductive organs, sperm counts, sperm motility and viability were compared among all the groups. The histology and ultrastructure of testis and epididymis were observed, while the concentrations of follicle stimulating hormone (FSH), luteinizing hormone (LH) and testostorone (T) in serum and T in testicular homogenate were detected by radioimmunoassay.

RESULTCompared with those in GTW model group, the embryo numbers, the relative weight of testis and epididymis and sperm counts and motility in C. cuneata groups were increased obviously (P < 0.05). After treatment, the morphological damages of seminiferous tubules and sperms were recovered, while concentrations of T in testicular homogenate were also significantly increased (P < 0.01).

CONCLUSIONC. cuneata could relieve the reproductive lesions induced by GTW, and hence improve the uberty of the male infertile model rats.

Animals ; Crataegus ; chemistry ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Glucosides ; antagonists & inhibitors ; isolation & purification ; Infertility, Male ; chemically induced ; metabolism ; pathology ; Male ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Random Allocation ; Rats ; Rats, Wistar ; Sperm Motility ; drug effects ; Spermatogenesis ; drug effects ; Testis ; drug effects ; metabolism ; Testosterone ; blood ; metabolism ; Tripterygium ; chemistry