ABSTRACT
Objective:To explore the role of hierarchical teaching based on the "competency-based" concept in the standardized training of respiratory nursing interns.Methods:A total of 70 nursing interns who came to the Department of Respiratory Medicine in Beijing Jishuitan Hospital for standardized training from September 2019 to August 2020 were selected as the study subjects. They were randomly divided into the study group and the control group by coin tossing method, 35 in each group. The study group used hierarchical teaching based on the "competency-based" concept, while the control group adopted conventional hierarchical teaching. The nursing ability and teaching quality of the two groups of nurses were compared. SPSS 23.0 was used for t-test and Chi-square test. Results:The theoretical knowledge scores of the nurses in the two groups after the standardized training [(95.29±3.13), (86.29±5.13)] were higher than those before the training [(78.22±4.48), (77.29±5.13)]. The scores of theoretical knowledges, operation skills, medical record reporting, and the comprehensive quality scores of the study group after the standardized training were higher than those of the control group, and the differences were statistically significant ( P<0.05). The satisfaction of teaching quality in study group was higher than that in control group, and the difference was statistically significant ( P<0.05). Conclusion:The hierarchical teaching based on the "competency-based" concept can significantly improve the teaching quality in the standardized training and the comprehensive quality of respiratory nursing interns, which is worthy of application.
ABSTRACT
Objective To study the effect of fasudil on inhibiting the Rho/ROCK signaling pathway under high glucose in human mesangial cells (HMCs) inflammation and fibrosis. Methods Synchronized HMCs were divided into following groups: (1) Normal glucose control group ( NG, 5. 5 mmol/L glucose) ;(2) High glucose group (HG, 30 mmol/L glucose) ; (3) Mannitol group (Man, 5.5 mmol/L glucose + 24. 5 mmol/L mannitol) ; (4) High glucose + fasudil group ( HG + F, the concentrations of fasudil were 25 ,50 and 100 μmol/L, respectively). Collect the supernatant and cells at 0, 12, 24, 36, 48 and 72 h respectively, and determine the concentration changes of the RhoA, ROCK- Ⅰ, connective tissue growth factor (CTGF)mRNA with real-time PCR method in the cells, then used the ELISA method to check the protein content of the fibronectin ( FN) , CTGF, TNFα in the supernatant. Results ( 1) RhoA, ROCK- Ⅰand CTGF mRNA of the HMCs cultured under the high glucose expressed significantly higher than those in the normal group, and there was certain time-dependence. Besides, there was no statistic significance by comparing Man and NG. (2) Under the high glucose situation, after the fasudil pretreatment with different concentrations and 24 h or 48 h culture with high glucose, RhoA, ROCK- Ⅰ , CTGF mRNA expression was significantly decreased in HG + F, compared with HG, and there was certain concentration-dependence. (3) High glucose increased the FN, CTGF, TNFα protein secretion of HMCs in a time-dependent manner, but normal glucose and mannitol had no such effect. (4) After the fasudil pretreatment with different concentrations and culture with high glucose for 12, 24, 36, 48, 72 h, the FN, CTGF, TNFα protein secretion was significantly reduced compared with HG. Conclusion Fasudil can reduce the secretion of downstream inflammatory factors and cytokines by inhibiting high glucose-activated HMCs Rho/ROCK signaling pathway, and reduce the inflammation and fibrosis of HMCs. This provides a new basis for the therapeutic target in the treatment of diabetic nephropathy.
ABSTRACT
Objective To investigate the role of Rho/ROCK signaling pathway in the process of human mesangial cells (HMCs) inflammation and fibrosis induced by high glucose. Methods Synchronized HMCs were divided into following groups: ( 1 ) Normal glucose control group ( NG, 5.5 mmol/L glucose); ( 2 ) High glucose group ( HG, 30 mmol/L glucose); (3) Mannitol group( Man,5.5 mmol/L glucose+ 24.5 mmol/L mannitol); (4) NG +Y-27632 group( 10 μ mmol/L Y-27632 ); ( 5 ) HG Y-27632 group ( 10 μmmol/L Y-27632 ). The supernatant and cells were collected at 0,12,24,36,48, and 72 h. Western blot was used to detect the active RhoA and total RhoA,while RhoA, ROCK-Ⅰ, CTGF, and TNF-α mRNA expressions were determined with realtime PGR method in the cells, then ELISA method was used to check protein levels of FN, CTGF, and TNF-α in the supernatant. Results ( 1 ) RhoA activation was stimulated after treatment for with 30 mmol/L glucose, peaked at 1 h, and then decreased ( P = 0. 02). (2) RhoA, ROCK-Ⅰ, CTGF, and TNF-α mRNA expressions in HMC cultured under high glucose were higher than those in the normal group ( P ＜ 0.05 ), and there was certain time-dependence. Besides, there was no statistical significance between Man and NG groups( P＞0. 05 ). ( 3 ) After Y-27632 pretreatment and being cultured with normal glucose and high glucose for24 h or48 h, RhoA, ROCK-Ⅰ, CTGF, and TNF-α mRNA expressions were significantly decreased ( P＜0.01 ) as compared with groups without treatment. (4) High glucose increased FN, CTGF,and TNF-α protein secretion of HMC in a time-dependent manner( P＜0. 05 ). ( 5 ) After Y-27632 pretreatment and being cultured with normal and high glucose for 12,24,36,48,72 h, FN, CTGF, and TNF-α protein secretions were significantly reduced( P＜0.05 ). Conclusion Rho/ROCK signaling pathway may mediate inflammation and fibrosis induced by high glucose in HMCs, supporting a potential role for inhibitors of Rho/ROCK in the treatment of diabetic nephropathy.