OBJECTIVE: To investigate the gene expression profile by using gene chip technology and probe into the role of corresponding gene in the pathogenesis of nasal polyps by analysing the difference of the gene depression. METHOD: The total RNAs were respectively extracted from 6 pairs of inferior turbinates and nasal polyps, and then were reversely transcribed to cDNAs with incorporation of fluorescent dUTP as the hybridization probes. The mixed probes were then hybridized with the BiostarH-40 s gene chips, it was scanned by laser scanner and the acquired image was analyzed by software. RESULT: 1887 genes were differently expressed in gene profile of nasal polyps, among which 1099 were upregulated and 788 were down-regulated. Six genes were found in all gene chips, among which 4 genes were upregulated and 2 were down-regulated. The 6 genes encoded the protein of the transmembrane 4 superfamily, highly similar to GAMMA-interferon-inducible protein IP-30 precursor, highly similar to complement factor I precursor and insulin-like growth factor binding protein 3 (IGFBP3). CONCLUSION Detecting the differently expressed genes will provide clues and theoretical foundation for the pathogenesis of nasal polyps. The nasal polyps is a polygenic disease and the genes of GAMMA-interferon-inducible protein, insulin-like growth factor binding protein may play an important role in its pathogenesis.
Adult ; Gene Expression Profiling ; methods ; Humans ; Male ; Middle Aged ; Nasal Polyps ; genetics ; Oligonucleotide Array Sequence Analysis ; methods ; Young Adult

Objective To explore the work experiences in nursing homes among nurses and to provide the referenced basis for managers to understand the needs of nurses and develop humanistic nursing management measures. Methods Descriptive phenomenological methodology was adopted in this study,a semi-structured interview was conducted with 9 nurses working in nursing homes.Data were analyzed based on Colaizzi′s phenomenological research method. Results Four themes were extracted including:heavy work tasks;high psychological pressure;strong demand in training;emotional experience of work. Conclusions Through in-depth interviews with 9 nurses working in nursing homes,we suggest that in order to promote the professional development of geriatric nursing, managers should change and update the concept of geriatric nursing and attach importance on professional study of nurse, and take appropriate intervention measures to lighten nurses' work pressure and adjust their bad mood, so as to arouse the enthusiasm of nurses.Finally,we can achieve the goal of stabilizing the nursing personnel and improving the quality of care in the nursing homes.

Objective To explore the characteristics of myocardial injury in patients with acute myocardial infarction(AMI)complicated by pleural effusion and its effect on long-term prognosis.Methods It was a prospective single-center study.Patients with AMI who were admitted to hospital within 15 days from symptom onset and performed echocardiography and cardiac magnetic resonance imaging(CMR)during hospitalization were consecutively enrolled and assigned to the with-pleural effusion group and the without-pleural effusion group according to the echocardiography result.Baseline data,cardiac magnetic resonance myocardial injury index and echocardiography characteristics were compared between the two groups.The occurrence of major adverse cardiovascular and cerebrovascular events(MACCE)was recorded through outpatient follow-up and telephone follow-up,including all-cause death,re-infarction,revascularization,rehospitalization for congestive heart failure and stroke.Cox regression analysis was performed to analyze influencing factors of all-cause death.Results Among 211 patients,31(14.7%)patients had pleural effusion and 180(85.3%)had no pleural effusion.Compared with the group without pleural effusion,the left ventricular end-diastolic diameter was larger,and left ventricular ejection fraction assessed by echocardiography was lower in the group with pleural effusion(P＜0.05).There were no significant differences in infarct size,left ventricular end-diastolic volume,left ventricular end-systolic volume,left ventricular ejection fraction and the presence of microvascular obstruction and intramyocardial hemorrhage between the two groups in CMR(all P＞0.05).At a median follow-up of 31 months,MACCE occurred in 43(20.4%)patients,and there was no significant difference between the two groups(χ2=3.160,P=0.075).Six cases(2.8%)had all-cause death.The incidence of all-cause death was higher in the group with pleural effusion than that in the group without pleural effusion(9.7%vs.1.7%,P<0.05).There was no significant difference in the incidence of other adverse events between the two groups(P＞0.05).Multivariate Cox regression analysis showed that advanced age and presence of pleural effusion were independent risk factors of all-cause death during follow-up.Conclusion Patients with AMI combined with pleural effusion have more severe myocardial injury and higher all-cause mortality.