Objective To investigate the changes of plasma indirect bilirubin(IDB) and its role in the pathogenesis of obstructive sleep apnea hyponea syndrome(OSAHS).Methods Plasma IDB levels were detected in 30 healthy controls and 20 patiemts with OSAHS by improved J G method with 7170A automatic biochemistry analytical apparatus.Plasma IDB levels in OSAHS were compared before and an overnight or a month after CPAP treatment.ResultsPlasma IDB levels in controls were significantly higher than those in OSAHS [(16 2?5 0) ?mol/L vs (8 0?3 5)?mol/L, P 0 05] and markedly increase after a month CPAP ventilation [(8 0?3 5) ?mol/L vs (14 0?5 0)?mol/L, P

Objective To investigate the bacterial spectrum and drug resistance of gram-negative bacteria infection in intensive care unit(ICU).Methods A retrospective analysis was conducted on flora isolates from Jan 2003 to Dec 2003 to investigate the bacterial spectrum,bacterial resistance and clinical characteristics.Results The leading causative microorganisms isolated were Acinetobacter spp (22.1%),Pseudomonas aeruginosa(20.1%),and E.coli (16.9%). Gram-negative bacteria exhibited the lowest resistance rates to imipenem/cilastati and Amikacin in all antibiotics currently used.However Pseudomonas aeruginosa had the highest resistance rate to imipenem/cilastatin in all the gram-negative bacteria (12.1%).The respiratory tract was the most common compromised site in ICU.Conclusions The causative bacteria in infection in ICU have a higher resistance to antibiotics currently used including cephalosporins of third-generation.It is critical to adopt specific antibiotics based on bacteriology and susceptibility to prevent the development of drug resistance.

Objective To elucidate the effects of thalidomide on the expressions of basic fibroblast growth factor(bFGF) in parental and cisplatin resistant human lung adenocarcinoma cell line A 549 and A 549 DDP Methods RT PCR and lmmunohistochemistry were used to detect the bFGF mRNA and protein expression in A 549 and A 549 DDP Results bFGF mRNA expression levels and protein expressions in A 549 and A 549 DDP were all significant reduced after treatment of thalidomide (6 ?g/ml)(all P

Objective To observe the changes of endothelin and 6 Keto PGF 1? of patients with pulmonary heart disease and effects of Compound Danshen,to study the role of ET 6 Keto PGF 1? in pulmonary heart disease and pulmonary artery hypertension,and explore a safe and effective drug for pulmonary artery hypertension Methods 40 patients with CPHD and 30 patients with COPD as well as 20 healthy persons as control whose levels of plasma ET and 6 Keto PGF 1? were measured by radioimmunization,meanwhile,PaO 2 was measured by blood gas analyze instrument Results The level of ET in CPHD was higher than that in COPD and healthy group,company with the lower level of 6 Keto PGF 1? After treatment with Compound Danshen,the level of ET was reduced and 6 Keto PGF 1? was elevated Conclusions The balance between ET and PGI is important in modulating pulmonary circulation Compound Danshen can reduce pulmonary artery tension through protecting endothelium,decreasing ET,and increasing PGI 2

Objective To study expression of hypoxia inducible factor 1? (HIF 1?) in the lungs of hypoxic rats and to explore the role of HIF 1? in the pathogenesis of hypoxic pulmonary hypertension Methods Twenty Wistar rats were randomly divided into control group and hypoxia group The models of hypoxic pulmonary hypertension were established by exposure to hypoxia for 4 weeks according to our laboratory protocol Digoxin labelled cRNA probe for HIF 1? was prepared by in vitro transcription Northern blot was performed by using the HIF 1? cRNA probe and In situ hybridization was also conducted with rat lung tissue sections Results Northern blot hybridization showed minimally positive in the lung tissue of control group ,but strongly positive in hypoxia group In situ hybridization analysis with hypoxic rat lung tissue revealed that HIF 1? mRNA was expressed in bronchial epithelial cells (strongly positive reaction) and peribronchial proliferative lymphomatic tissue (weakly positive reaction),casually in alveolar wall cells (weakly positive reaction),but not in pulmonary arterial endothelium and smooth muscle cells Conclusions Our data suggested that chronic hypoxia could induce pulmonary hypertension characterized by pulmonary vascular remodeling HIF 1? mRNA expression was elevated in the lungs of rat under hypoxic condition HIF 1 may be involved in the pathophysiological changes in response to hypoxia and play an important role in the development of hypoxic pulmonary hypertension

0 05) After one year,plasma cortisol of the patients in either inhaled FP 500 ?g group or 750 ?g group was within normal rang Conclusions Long term inhaled FP with 500 ?g to 750 ?g per day is effective in moderate to severe asthma patients and has no significant suppression on adrenal cortex function

Objective To explore a brief regimen to treat and manage asthmatic patients.Methods 122 asthmatic patients(including 12 inpatients) treated and managed at respiratory clinic were followed up for 1～10 years.The data of these patients were collected and analysed Results On the base of asthma education patients were received inhaled glucocorticoid combined with ? 2 agonist and/or theophylline for two to five years Of 122 patients,20(16 4%) patients remised and remained good control without any medication,90(73 8%) patients relapsed within 1 to 2 years after drug withdrawal Conclusions Asthmatic patients must be treated and managed regularly according to GINA It was especially emphasized that inhaled glucocorticoid is the mainstay of ling term threapy Most patients can remise for quite a long time with agreeable quality of life while a few patients can be cured

Objective To explore the effects of long term preventive treatment and patient education on asthmatic patients after acute attack Methods Prevention,treatment,and education were underwent for two to five years in 78 asthmatic patients after acute attack Frequency of exacerbation,lung function and laboratory parameters were monitored while treatment regimen was adjusted according to above results Results Regular prevention and management resulted in improvement of lung function and symptom as well as quality of life in all the patients Mmeanwhile less frequences of acute attack,emergency department visit,and hospital stay were observed,leading to reduction of medical expenditure Conclusion Long term prevention,treatment and education for asthmatic patients after acute attack are effective for better asthma control

Objective To observe the clinical features of pulmonary infections secondary to lung tuberculosis and explore the nursing care strategy in this condition.Methods Retrospective analysis on in patients of lung tuberculosis with secondary pulmonary infections from Sep 2000 to Aug 2002.Results Of 53 tuberculostic patients who were suffered from lung infection after hospitalization,majority were secondary tuberculosis including chronic fibrosis with cavity information in 21 cases and exudative in 17 cases while other typies like miliaris disseminata in 14 cases.Total mortality was 11.3%.Conclusion Intensive and specific nursing care could reduce the prevalence of nonsocasimal infection in tuberculostic in-patients and improve the outcome.

Objective To evaluate the efficacy of noninvasive positive pressure ventilation (NIPPV) in the treatment of early acute respiratory distress syndrome(ARDS) Methods 12 patients with early ARDS were errolled in the study All the patients pulltiled the criteria of ARDS and no improvement after high flow oxygen therapy via mask NIPPV was used because the patients and their family refused intubation Pressure support ventilation (PSV) and positive end expiratory pressure (PEEP) were used via facial mask with Vison or BiPAP ventilator PEEP were set at 8～12 cm H 2 O with 4～6 PSV level Results The baseline respiratory frequency(RR)was (36?4)bpm,PaO 2 was (55?9)mm Hg and oxygen index (OI)was (127?4)mm Hg At final,8 patients survived (S group) and 4 patients died (F group) After 4～6 h treatment with NIPPV,in S group,RR decreased to (32?1 2)bpm ( P