Objective To discuss the teaching method and effect of teaching-learn-do integration mode in the Basic Nursing Technology.Methods Students of two classes of grade 2010 and two classes of grade 2011 in our nursing college were randomly divided into the experimental group and the control group,they respectively adopted teaching-learn-do integration teaching mode and first-theory-after-practice traditional teaching method.The teaching effect of the two groups by theory and skills testing was compared.Results The experimental groups were better than the control groups in two grades in skill examination results.For the theoretical examination results,the experimental group of grade 2011 was better than the control group,while the two groups of grade 2010 were undifferentiated in theoretical examination.Conclusions Teaching-learn-do integration mode can not only improve students' operating skills,but also promote the theoretical learning,and improve the students' learning ability of independent innovation,suitable for practical and technical-strong course teaching in Basic Nursing Technology.

Objective To investigate the clinical significance and prognostic value of PKD3 expression in human hepatocellu-lar carcinoma (HCC)after hepatectomy.Methods We analyzed mRNA expression of L1CAM in 1 10 HCCs by quantitative real-time PCR (qRT-PCR)and western blot,and the relationship among the overall survival of HCCs.Results The relative protein and mRNA expression level of L1CAM was up-regulated in HCCs comparing with adjacent non tumor liver tissues (P <0.01).L1CAM expression in the well-differentiated group was higher than that in the poor-differentiated group (P < 0.01 ).The expression of L1CAM mRNA was significantly correlated with tumor differentiation and TNM stage (P <0.05).The prognosis of patients with high expression L1CAM was poor (P <0.01).Conclusion L1CAM expression is related to occurrence and development of HCCs and may predict the prognosis of HCCs after hepatectomy.

Objective To observe the clinical effects of the children with svstemic inflammatorv re- active syndrome(SIRS)receiving micro-dose heparin at early stage of the diseases.Methods The 53 cas- es diagnosed as SIRS were included in the randomized control trial.They were divided into two groups,26 cases in control group and 27 cases in therapeutic group.The children in control group received therapy for their primary diseases and other routine managements for SIRS.The children in therapeutic group received both above therapy and micro-dose heparin(5-10 U/kg,1 fime/6hours)via subcutaneous injection at earlv stages of diseases for 3 days.Results There were improvements in both control and therapeutic group, platelets count increased,C-reactive protein decreased (P＜0.01),there were significant diffemnce in platelets and C-reactive protein between two groups,the time of platelets recovery in therapeutic group [(28±9)h]Was less than that in control group[(55±14)h](P＜0.01).In therapeutic group,the dumtion of SIRS was shortened (P＜0.05),mortality and the incidence of multiple organ dysfunction svndrome (MODS)and disseminated intravascular eoagultion(DIC)were decreased significantly(P＜0.05).Con- clusion Early micro-dose heparin in SIRS can shorten its duration and decrease the mortality and the inci- dence of MODS in the children with SIRS.

Pathology is an important basic course in higher vocational nursing,with a wealth of humanistic education.But in the actual teaching process,the humanistic education is often ignored because of too much basic knowledge teaching.Our teaching and research section used questionnaire to find the gaps between current situation,goal of humanistic education and students' needs.By enhancing teachers' humanistic awareness and discovering the entrance to humanistic education,we targeted to professional ideological education,guided students to pay attention to humanistic education and helped them to cultivate humanistic caring capability,and students all had good evaluation on it.It helped to solve the problem of both teaching and education to students in short time under pressure.

Objective To explore the application effect of teach-learn-do integration teaching mode on the course of ‘Fundamental nursing technique’ teaching. Methods We randomly selected one class from each of two 2011 grade and 2012 grade classes as control group and another two classes as experimental group. The students in the experimental group underwent reform teaching method comparing with traditional teaching method used in the control group. In the experimental classes, we reduced the rate of theory and increased the the practice, used the self-written teach-learn-do material, built up double-teaching team, utilized diverse teaching methods. The students in the control group were taken the learning of theory first and then practice this traditional teaching mode. After the course, the theory and skill assessment had been evaluated and compared between two groups. Results The scores of two classes in the experimental group acquired (90. 46 ± 5. 65) score, (87. 41 ± 5. 37) score better than (88. 46 ± 6. 35), (85. 53 ± 6. 45) of the control group, the skill scores (89. 52 ± 2. 30), (88. 48 ± 2. 48) in the experimental group compared with (88. 61 ± 2. 01), (87. 06 ± 3.66) in the control group (t =2. 327, 2. 983, 2. 296, 3. 412;P <0. 05). Conclusions Teach-learn-do teaching method can effectively resolve the gap between theory and practice, enhance the teaching quality of‘Fundamental nursing technique’ , and is adapt the teaching of ‘Fundamental Nursing Technique’ .

Objective:To investigate the regulatory role of RNA m 6A methyltransferase (METTL14) in ultraviolet B (UVB) radiation-induced skin injury, and to preliminarily explore the potential of targeted inhibition of METTL14 for treating UVB-induced skin injury. Methods:A UVB radiation-induced skin injury model was established by exposing C57BL/6J mice to 150 mJ/cm 2 UVB, and was assessed and scored with HE staining and Masson staining. UVB radiation-induced cell injury models were established by exposing human immortalized keratinocytes (HaCaT) and human skin fibroblasts (WS1) to 10 and 30 mJ/cm 2 UVB, respectively. The m 6A levels in the mouse skin and cell models after UVB exposure were quantified by colorimetric assay, and m 6A-related enzymes in cells were measured by Western blot. HaCaT and WS1 cell lines overexpressing METTL14 were constructed using recombinant adenoviral vectors, and the overexpression effects were tested by Western blot. The METTL14 overexpression cells were examined for their m 6A levels, proliferative abilities after UVB exposure (by clone formation assay), and changes in apoptosis (by flow cytometry). The model mice with UVB-induced skin injury in the treatment groups received subcutaneous injection of the METTL14 inhibitor S-adenosylhomocysteine (SAH) solution (1 mg/kg, 5 mg/kg) twice consecutively before and after irradiation; and the mice were assessed and scored for skin injury with HE staining and Masson staining. Results:On the 4th day after 150 mJ/cm 2 UVB irradiation, the mice showed remarkable skin injury, pathologically featuring inflammatory infiltration, tissue structure disorganization, and collagen fiber degradation, reaching the maximum score; and the m 6A level in the skin was significantly downregulated ( t = 3.07, P < 0.05). At 24 h after 10 and 30 mJ/cm 2 irradiation, HaCaT and WS1 cells showed significantly reduced survival rates ( t = 7.64, 7.15, P < 0.05), significantly downregulated m 6A levels ( t = 4.78, 4.36, P <0.05), and significantly time-dependent downregulation of METTL14 protein expression ( t = 6.39, 4.76, P < 0.05). In HaCaT and WS1 cells, METTL14 overexpression significantly up-regulated m 6A levels ( t = 7.66, 3.67, P < 0.05), significantly inhibited the clone-forming ability of cells after UVB irradiation ( t = 6.29, 3.84, P < 0.05), and significantly increased the rate of cell apoptosis ( t = 3.48, 9.54, P < 0.05). Compared with those in the normal saline group, the model mice with UVB-induced skin injury in the SAH treatment group (5 mg/kg) showed significantly decreased pathological scores of skin injury ( t = 3.21, 4.27, 5.81, P < 0.05), with milder inflammatory infiltration, more orderly tissue structure, and less collagen fiber degradation. Conclusions:METTL14 can increase the sensitivity of skin cells to UVB radiation, and targeted inhibition of METTL14 can effectively alleviate UVB radiation-induced skin injury, which may be a potential new target for the treatment of UVB radiation-induced skin injury.