Objective To study the effect of using Dexamethasone in different time for treatment and prevention of bronchopulmonary dysplasia (BPD), in order to provide the clinical reference as to whether dexamethasone can be used to prevent and treat BPD.Methods A total of 135 very low birth weight infants hospitalized for 1 week who still survived on mechanical ventilation were studied.The total cases were divided into early Dexamethasone group and none Dexamethasone group.Whether early using dexamethasone could prevent BPD or not were observed.The BPD infants were divided into 3 groups, early Dexamethasone group, later Dexamethasone group and none Dexamethasone group.The effect of using Dexamethasone on BPD in different time were observed.Results (1) Among these 135 infants,there were 65 infants developing BPD.The incidence of BPD was 48.15％.There were no significant differences in the prevalence of BPD, the death rate and the disease index of BPD between the early Dexamethasone group and the none Dexamethasone group (all P ＞ 0.05).(2) There were no significant differences in mechanical ventilation time among the 3 BPD groups [(19.81 ± 5.67) d vs (22.32 ± 6.20) d, (21.46 ± 7.02) d, P =0.405].But the average time of inhaling oxygen and hospital stays of later Dexamethasone BPD group were shorter than early Dexamethasone BPD group and none Dexamethasone BPD group.The differences were significant [(37.27 ± 10.14) d vs (45.96 ± 9.91) d,(43.42 ±8.73) d,P=0.012;(64.11 ±8.14) d vs (76.13 ±7.57) d,(68.59 ±8.53) d,P =0.000].(3) The incidence of infection (90.90％, 100.00％ vs 81.90％), hyperglycemia (27.27 ％, 30.43 ％ vs 10.00 ％), hypertension(9.09％ ,13.04％ vs 0) and neonatal necrotizing enterocolitis(22.73％ ,34.78％ vs 15.00％) of all the infants who received Dexamethasone were higher than the infants who did not receive Dexamethasone.But the differences showed no significance(all P ＞ 0.05).(4) There were no significant differences among the 3 BPD groups in growth [weight : (9.16 ± 1.53) kg vs (8.92 ± 1.13) kg, (9.07 ± 1.46) kg;height: (71.26 ± 8.59) cm vs (69.54 ± 9.32) cm, (70.32 ± 9.07) cm] or been in hospital again because of pulmonary infection during one year(75.00％ vs 65.00％ ,72.22％) (all P ＞ 0.05).The differences of abnormal Chinese children development scale scores among the BPD groups (mental development index ＜ 80:20.00％ vs 15.00％, 16.67 ％;physical development index ＜ 80:25.00％ vs 20.00％, 16.67％) showed no significance(all P ＞ 0.05).Conclusions Early use of Dexamethasone has no effect to prevent BPD.Dexamethasone therapy on BPD should be used in the later stages ,and small doses and short protocol are preferred.

Objective To assess quantitatively the association between smoking and the risk of disease and death from pulmonary tuberculosis(TB) by a meta-analysis. Methods Both Chinese and English literatures published from Jan. 1999 to Jun. 2010 about the case-control study of the association between smoking and pulmonary TB were retrieved by searching the electronic resource databases. A meta-analysis was then performed on the comparison and synthesis of findings from included studies. Pooled odds ratio (OR) and 95% confidence interval (CI) were calculated using a software RevMan 4.2. Finally,possible publication bias was tested and a sensitivity analysis was conducted. Results The meta-analysis for total 22 high-quality case-control studies found a pooled OR of 2.56 (95% CI 1. 80 ～3.64) with a random-effects model. Sensitivity analysis showed that pooled OR was 2.56 (95% 1.76 ～3.71 ) by removing two papers of nested case-control study. The OR were 2.13 (95% CI1.76～2.58) and 4.60 (95% CI 1.81～11.69) for disease and death from TB,respectively. After confounding factors,including age and gender,had been controlled the OR was 2.53 (95% CI 1.27 ～5.03 ) whereas 1. 99(95% CI 1.54 ～ 2.56 ) without control of them. Conclusion Smoking can increase the risk of incidence and death of TB. TB control programs and treatment of patients might benefit from interventions aimed at reducing tobacco exposure.

OBJECTIVE:To determine the content of epirubicin in human plasma by RP-HPLC.METHODS:The chromatographic separation was performed on YWG C18 column.The mobile phase consisted of water-acetonitrile(12∶7,with pH adjusted to 3.90?0.05 using 85% phosophoric acid)at a flow rate of 1.0 mL?min-1.The detective wavelength was set at 254 nm.RESULTS:The linear range of epirubicin was 0.12～4.80 mg?L-1(r=0.998 4)with the lowest detective range of 0.01 mg?L-1.The intraday RSD was less than 4.40% and the inter-day RSD was less than 5.60%,and the average recovery rate was 99.40%(RSD=4.02%).The sample solution was stable within 12 h under room temperature.CONCLUSION:The method is easy,precise and reproducible to operate and the result of the determination is accurate.

Objective To investigate the level of self-care behaviors and self-efficacy among adult type 2 diabetes patients in community and discuss current problems.Methods A convenient sample of 85 patients with type 2 diabetes in Haiyuncang community was interviewed,using diabetes self-care scale and diabetes self-efficacy scale.Totally 85 questionnaires were got and underwent analysis.Results The index score of self-care behaviors and self-efficacy among adult type 2 diabetes patients in community were 66.98% and 69.02%.There were no significant difference in self-care behaviors of patients whether they attended diabetes lectures or not.Self-efficacy correlated significantly with self-care behaviors.Conclusions The self-care behaviors and self-efficacy of diabetes patients need to be improved,and diabetes education in community should be emphasized and carried out effectively.

Objective:To investigate the effects of IL-2 on the proliferation activity and HCG secretion of first trimester human trophoblastic cells in vitro. Methods:Growing -well 4th generation trophoblastic cells were selected,cultured for 48 h with IL-2 of different concentration. The MTT colorimetric assay was used to analyze the proliferation activity, and radioimmunoassay was used to analyze the secretion of HCG. Results:①Low concentration (100 U/ml,400 U/ml) IL-2 promoted proliferation activity and HCG secretion (P

OBJECTIVE To analyze the changes in clinical behaviors in the recent 10 years among patients with diabetes combined infection,including incidence of diabetic′s concurrent infections, the infective sites,the pathogen spectrum,the danger of infections and so on,we could do better in preventing and curing the diabetic′s concurrent infections.METHODS Using retrospective methods,the diabetic patients with concurrent infection were divided into two groups,712 patients in 1995-1999 as the first group,986 patients in 2000-2005 as the second group,were respectively calculated and compared their average age,sex distribution,the average course of diseases,the fasting blood sugar,glycosylated hemoglobin,the incidence of infection,and the distribution in body systems.RESULTS The diabetic patients′ average course in the second group(10.82?9.83 years) prolonged a little than the first(P

Objective To study the effect of milrinone(Mil) and prostaglandin E1(PGE1) on postoperative right ventricular failure(RVF). Methods 28 patients with congenital heart diseases and pulmonary hypertension undergoing cardiopulmonary bypass (CPB) were randomly divided into four groups: control group (group I), receiving Mil (Group II), receiving PGE1 (Group III), and receiving both Mil and PGE1(group IV). The hemodynamic indexes of all the patients, including mean pulmonary artery pressure (PAP), mean arterial blood pressure (MAP), cardiac index(CI), systemic vascular resistance (SVR) and pulmonary vascular resistance(PVR), were measured and compared. Intubation time and side effects were observed. Results Compared with the other three groups, postoperative PAP、PVR and SVR in group IV deceased and CI increased significantly. The intubation time was also shorter in group IV. Conclusion Postoperative RVF can be treated efficiently by using Mil and PGE1.

Ecological charactcristics and biological specific feature of Helleborus thibetanus Fran ch. were briefly described and cultivation technique to transform the wild plant into itscultivated variety was studied to provide a basis for the protection and expliotation ofthe wild resource of H. thibetanus.

Objective To investigate the role of induced sputum in monitoring airway inflammation of chronic obstructive pulmonary disease (COPD). Methods Induced sputum was taken from 26 patients with stable COPD. IL-8 level in the sputum was detected, and the lung function of the patients was determined. 15 healthy volunteers served as control group. Results The total cell count and the number of AM and PMN in sputum were significantly higher in the patients than those in the control group (P

Objective:To observe the effect of nape acupuncture on vertebral-artery type cervical spondylosis.Methods:Eighty patients with vertebral-artery type cervical spondylosis were randomly divided into nape acupuncture group and Jiaji acupuncture group,with 40 cases in each group.The patients in the nape acupuncture group were treated with the nape acupuncture plus Jiaji acupuncture,while the patients in the Jiaji group were treated with Jiaji acupuncture only,to observe the functional scale before and after treatment.Results:The total effective rate in the nape acupuncture group was 95.0%,while the total effective rate in the Jiaji acupuncture group was 82.5%.By Ridit analysis,u=5.186,P＜0.01.It indicated that the therapeutic effect in the nape acupuncture group was better than that in the Jiaji acupuncture group.Compared with Jiaji acupuncture group,the difference value of pre- and post-treatment about functional scale of vertebral-artery type cervical spondylosis and the post-treatment score have statistic differences (P＜0.01).It indicated that the therapeutic effect of nape acupuncture group was more obvious in treating vertigo than that in the Jiaji acupuncture group.Conclusion:The treatment of vertebral-artery type cervical spondylosis by Jiaji acupuncture plus the nape acupuncture may enhance the therapeutic effect significantly.