Humans ; Pilot Projects ; Prospective Studies ; Pulmonary Emphysema/surgery* ; Lung/surgery* ; Emphysema ; Perfusion ; Tomography, Emission-Computed ; Tomography ; Tomography, Emission-Computed, Single-Photon ; Pneumonectomy ; Bronchoscopy/methods*

Objective    To provide recommendations for the management of intensive care unit patients without novel coronavirus disease 2019 (COVID-19). Methods    We set up a focus group urgently and identified five key clinical issues through discussion. Total 23 databases or websites including PubMed, National Guideline Clearing-House, Chinese Center for Disease Control and Prevention and so on were searched from construction of the library until February 28, 2020. After group discussion and collecting information, we used GRADE system to classify the evidence and give recommendations. Then we apply the recommendations to manage pediatric intensive care unit in the department of  critical care medicine in our hospital. Results    We searched 13 321 articles and finally identified 21 liteteratures. We discussed twice, and five recommendations were proposed: (1) Patients should wear medical surgical masks; (2) Family members are not allowed to visit the ward and video visitation are used; (3) It doesn’t need to increase the frequency of environmental disinfection; (4) We should provide proper health education about the disease to non-medical staff (workers, cleaners); (5) Medical staff do not need wear protective clothing. We used these recommendations in intensive care unit management for 35 days and there was no novel coronavirus infection in patients, medical staff or non-medical staff. Conclusion    The use of evidence-based medicine for emergency recommendation is helpful for the scientific and efficient management of wards, and is also suitable for the management of general intensive care units in emergent public health events.

Objective To investigate effect of cluster nursing for children with severe pneumonia in ICU.Methods A total of 88 patients with severe pneumonia were randomly divided into two groups,the control group received routine care,and the experimental group conducted cluster nursing.Blood gas analysis results after intervention,adjuvant effect of nursing,related clinical indicators,VAP,mortality and nursing satisfaction were compared.Results The experimental group had higher levels of p (O2),SaO2 and pH,lower p (CO2) level,ventilation time,ICU time and length of hospital stay and incidence of VAP than the control group (P ＜ 0.01).The experimental group had higher total efficiency and nursing satisfaction,and lower mortality than the control group (P ＜ 0.05).Conclusion Cluster nursing for children with severe pneumonia in ICU has significant efficacy,and can significantly improve nursing satisfaction.

Objective To discuss the influence of water colloid dressing on the skin of tracheal intubation in less than 6 months newborns with congenital heart disease.Methods A total of 80 newborns with congenital heart disease accepted therapy in our hospital were selected and were divided into control group and experimental group,with 40 cases in each group.3 M elastic tape was used to fix tracheal intubation in control group while water colloid dressing was used to protect the cheek and then 3 M elastic tape was applied to fix catheter in experimental group.The skin condition of the cheek was compared after intubation.Results The skin condition of experimental group was significantly better than control group (P ＜ 0.05).Conclusion Water colloid dressing could protect the skin and decrease the rate of avulsion injury of skin and pressure sores.

Objective To investigate effect of cluster nursing for children with severe pneumonia in ICU.Methods A total of 88 patients with severe pneumonia were randomly divided into two groups,the control group received routine care,and the experimental group conducted cluster nursing.Blood gas analysis results after intervention,adjuvant effect of nursing,related clinical indicators,VAP,mortality and nursing satisfaction were compared.Results The experimental group had higher levels of p (O2),SaO2 and pH,lower p (CO2) level,ventilation time,ICU time and length of hospital stay and incidence of VAP than the control group (P ＜ 0.01).The experimental group had higher total efficiency and nursing satisfaction,and lower mortality than the control group (P ＜ 0.05).Conclusion Cluster nursing for children with severe pneumonia in ICU has significant efficacy,and can significantly improve nursing satisfaction.

Objective To discuss the influence of water colloid dressing on the skin of tracheal intubation in less than 6 months newborns with congenital heart disease.Methods A total of 80 newborns with congenital heart disease accepted therapy in our hospital were selected and were divided into control group and experimental group,with 40 cases in each group.3 M elastic tape was used to fix tracheal intubation in control group while water colloid dressing was used to protect the cheek and then 3 M elastic tape was applied to fix catheter in experimental group.The skin condition of the cheek was compared after intubation.Results The skin condition of experimental group was significantly better than control group (P ＜ 0.05).Conclusion Water colloid dressing could protect the skin and decrease the rate of avulsion injury of skin and pressure sores.

Background Studies show that regulatory T cells (Treg) are a kind of T cell subsets to negatively regulate immune response,and play an important role in maintaining immune homeostasis and immune tolerance.Autoimmune uveitis is an autoimmune disease,the regulation of Treg cells in pathogenesis and progression of autoimmune uveitis is not fully unelucidated.Objective This study was to observe the dynamic changes of Treg in experimental autoimmune uveitis (EAU) rats and explore the role of Treg cells in the pathological process of EAUrats.Methods Eighty four 6-8 week-old SPF Lewis rats were randomly divided into model group and control group.The mixed emulsifier of interphotoreceptor retinoid-binding protein (IRBP)1177-1191,tuberculin (TB),complete Freund adjuvant (CFA) and PBS (300 μl) was subcutaneously injected in double rear foot pad,abdominal side and back,and only equal amount of TB,CFA and PBS emulsifier was used in the same way in the control group.Ocular inflammation symptoms was examined at 9,13,18,23,28,35 and 48 days after modeling and scored based on the severity of the inflammatory.Six rats of each group were sacrificed in above time points respectively for the histopathological examination of iris,ciliary body and retinas by haematoxylin-eosin staining.The lymphocytes were isolated and cultured from rat spleens,and the proportion of Foxp3-labelled cells,a specific marker of Treg cells,was assayed by flow cytometry.The relative expression level of Foxp3 mRNA in the lymphocytes detected by using realtime quantitative PCR (RT-PCR).The use and care of the rats complied with the ARVO Statement.Results Eye inflammatory response appeared at 8 days after immunization,showing vasodilation and hyperemia of rat iris in the model group,and the response peaked at 13 days,with exudation and hypopyon in the anterior chamber.The highest inflammatory scores were 3.75±0.42 at day 13,and the ocular inflammation reaction was gradually relieved after that and disappeared at 23 days after immunity.A significant difference in ocular inflammatory scores of model rats was found among different time points (F =81.709,P ＜ 0.001);while no inflammatory symptom was observed in the control group.Histopathology examination showed obvious infiltration of inflammatory cells in the iris,ciliary body and retinas in model rats,including neutrophils,lymphocytes and mononuclear cells.The proportion of Foxp3-labelled cells in spleen lymphocytes was (5.50 ± 0.64)％,(13.36 ± 0.98)％,(10.34 ± 0.79)％,(9.58 ± 1.02)％,(6.73 ±0.81)％ and (5.58 ± 0.47) ％ in the model group on day 13,18,23,28,35,48 respectively,with statistically significant differences in comparison with (2.80 ± 0.38) ％,(3.36 ± 0.53) ％,(3.65 ± 0.57) ％,(3.37 ± 0.43) ％,(3.33±0.50)％ and (3.13±0.61)％ in the control group (t=-6.272,-15.556,-11.910,-9.753,-6.154,-5.491,all at P＜0.01).The change trend of Foxp3 mRNA expression was consistent to the dynamic change of the proportion of Foxp3-labelled cells.Conclusions The pathogenesis and development is closely associated with the dynamic changes of CD4+ CD25 + Foxp3+ Treg cells in EAU rats.

This study aims to construct the plasmid of human Runx1 and observe its possible effects on Runx1 gene expression in human pulmonary adenocarcinoma cells (A549). The shRNA sequence targeting human Runx1 was designed and synthesized, then inserted into pSuper plasmid by DNA recombination technology. The recombinant plasmid was confirmed by bacterial colonies PCR, enzyme digestion analysis and DNA sequencing. A549 cells were transfected by Runx1 shRNA plasmid. The inhibition efficiency of pSuper-Runx1-shRNA plasmid on Runx1 at mRNA level and protein level were measured with real-time PCR and Western blot. The results of real-time PCR and Western blot indicated that the mRNA and protein levels of Runx1 in A549 cells were inhibited by the pSuper-Runx1- shRNA expression plasmid, and the inhibition rate were 33% and 50%, respectively.
Cell Line, Tumor ; Core Binding Factor Alpha 2 Subunit ; genetics ; Gene Expression ; Genetic Vectors ; Humans ; Plasmids ; genetics ; RNA, Messenger ; genetics ; RNA, Small Interfering ; genetics ; Real-Time Polymerase Chain Reaction ; Transfection

Objective To investigate the CD44v6 and heparanase in non-small cell lung cancer (NSCLC ) and adjacent normal lung tissues ,and to study the correlation of these two molecular in non-small cell lung cancer invasion and metastasis .Methods The expressing of CD44v6 and heparanase in 117 patients with non-small cell lung cancer tissues and 62 adjacent normal lung tissue was detected by immunohistochemical staining .Results The expression of CD44v6 in NSCLC was 54 .7% (64/117) ,which was sig-nificantly higher than in adjacent tissues of 4 .8% (3/62)(P<0 .05);the expression of heparanase in NSCLC was 86 .3% (101/117) ,which was significantly higher than the normal adjacent tissues 17 .7% (11/62)(P<0 .01);CD44v6 expression in NSCLC ex-pression was positive correlated with heparanase .Conclusion CD44v6 and heparanase are associated with the invasion and metasta-sis of NSCLC ,combined detection of the expression of the two molecular maybe has a certain reference value in determine the prog-nosis of NSCLC .

This study was aimed to construct transgenic mouse model with target for Runxl gene. Runxl cDNA of mice was amplified by PCR from pcDNA3. 1 Flag Runx1 FL vector and inserted into ptetO7-Asc-IRES-EGFP vector to form a recombinant vector, and then the recombinant vector was injected into fertilized egg by microinjection technology to get a transgenic mouse. The results of PCR and Southern blot indicated that the Runx1 transgenic mouse was constructed successfully, and this could provide an important tool for studying the function of Runxl gene in vivo.
Animals ; Base Sequence ; Core Binding Factor Alpha 2 Subunit ; genetics ; Female ; Genetic Vectors ; genetics ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; genetics ; Microinjections ; Molecular Sequence Data ; Recombination, Genetic