Objective To investigate the feasibility of using superparamagnetic iron oxide(SPIO)as MRI contrast agent to assess rat nonalcoholic steatohepatitis Kupffer cells(KC)function.Methods Twenty male SD rats were randomly divided into A and B groups,group A(n=10)was the experimental group fed high fat diet,group B(n=10)was the control group fed normal diet After 8 weeks,plain MR and SPIO enhanced MR were performed in all the rats.Blood lipids were measured,and HE and Perl's blue staining in all livers specimen was done.The related results of the staining were analyzed with t test Results Group A TC and TG levels[(6.58±1.25)and(1.53±0.23)mmol/L respectively]were significantly higher than group B[(1.64±0.22)and(0.55±0.14)mmol/L respectively](t=11.716 and 11.588,P＜0.01).Group A and B groups hepatic signal intensity decreased in all sequences after SPIO enhanced,but in group A the level of decline[(34.78±4.51)% and(60.38±3.49)% respectively]was less than group B[(64.96±2.42)% and(81.08±1.66)% respectively]on PDWI and T_1WI,and statistically significant differences(t=-18.451 and-16.240,P＜0.01)were found.In group A the ratio of signal intensity of liver to spleen(1.002±0.141,5.000±0.516,20.004±1.490 and 2.601±0.077 respectively)was more than group B(0.400±0.102,1.500±0.115,0.503±0.105 and-0.300±0.058)before and after contrast enhancement on PDWI,T_2WI,T_2~* WI andT_1WI(t=10.745,19.800,39.168 and 92.785,P＜0.01).Typical histological hepatic lesions of NASH were observed in group A,Perl's staining-positive particles in group A(2.33±0.50)were fewer than in group B(4)(t=-10.000,P＜0.01).Conclusion The high-fat diet induced model of SD rats was close to the human NASH and was easy to establish.Clinical application of SPIO enhanced MR successfully assessed the phagocytic activity of KC in the study,and it suggested that the pathogenesis of NASH was related to the decreased phagocytic activity of KC.

Objective To observe the expressions of Slug, BRAF V600E and STIP1 proteins in papillary thyroid carcinoma (PTC), and to explore their correlation with capsular invasion and regional lymph node metastasis. Methods Slug, BRAF V600E and STIP1 expressions in 107 cases of differentiated PTC were examined by immunohistochemical staining. The expressions of three proteins and clinicopathological data were statistically analyzed. Results Positive rates of Slug, BRAF V600E and STIP1 in PTC were 65.4 % (70/107), 61.7 % (66/107) and 66.4 % (71/107), respectively, and overexpression of Slug, BRAF V600E and STIP1 was significantly associated with capsular invasion and regional lymph node metastasis in PTC (P< 0.05). There are a significant correlation between expression of Slug and BRAF V600E in PTC (r= 0.235, P< 0.05). Conclusion Overexpression of Slug, BRAF V600E and STIP1 proteins is associated with capsular invasion and regional lymph node metastasis in PTC, which maybe useful for predicting regional lymph node metastasis and prognostic evaluation.

Objective To determine the difference in blood microcirculation recovery between normal frostbite and high-altitude frostbite during the wound healing.Methods Twenty four male rats were randomly divided into control group (n=8), normal frostbite group (n=8), and high-altitude group (n=8). The normal frostbite group rats were frozen to produce mid-degree frostbite models by controlling the freezing time with liquid nitrogen penetration equipment. The high-altitude frostbite group rats were acclimated to a hypoxic and low-pressure environment for 1 week, and then the high-altitude frostbite models were constructed by the same way with liquid nitrogen penetration apparatus. On days 3, 7, 11, 15, 19, and 23 after modeling, the recovery situation of blood circulation of each group was observed with contrast ultrasonography by injecting SonoVue micro-bubble into rats' tail. Finally, the micro-bubble concentration (MC) was calculated to confirm the blood circulation recovery with software Image Pro. ResultsAt different time points, the wound area of the high-altitude frostbite group was bigger than that of the normal frostbite group, and the MC of control group was always about (27±0.2)×109/ml. On day 3, 7, 11, 15, 19, and 23, the MC was significantly lower in the high-altitude frostbite group than in the control group and normal frostbite group (P<0.05). The MC of normal frostbite group was significantly lower than that of the control group on day 3, 7, 11, 15 and 19 (P<0.05). In addition, no obvious difference in MC was found between normal group and control group on the 23th day (P<0.05).Conclusion The blood microcirculation recovery after high-altitude frostbite is significantly slower than the normal frostbite.

Objective To investigate the status and influencing factors of quality of life among diabetes patients in Nanchang,and to explore the relationships between the quality of life and community health care demands.Methods Totally 292 diabetes patients were recruited by multi-stage sampling method from thee community health service centers in Nanchang city.They were investigated with Diabetes-specific Quality of Life Scale(DSQL) and a self-designed questionnaire of community health care demands.The results underwent analysis.Results The total score of the DSQL in Nanchang was(66.88±15.44) points,which was relatively poor.The main factors affected patients' quality of life were the complications of diabetes,diabetic macroangiopathy,diabetic foot,hypertension and patients' career.The total and the every dimension of the scores of the DSQL were positively correlated with the scores of disease nursing needs and community health care demands.Conclusions To improve diabetes patients' quality of life,community diabetic care should focus on the different affected factors of patients' quality of life and the demands of patients.

Objective To explore the clinical significance of Slug expression in papillary thyroid carci-noma(PTC). Methods Employed Ventana immunohistochemistry assay to determine the expression of Slug in 107 cases of PTC and para-tumorous normal tissue. The relationship with Slug expression in PTC and clinico-pathology data were also analyzed. Results Expression of Slug in PTC (65.4%, 70/107)and para-tumorous nor-mal tissue (14.0%,15/107)were statistically different (P < 0.001). Overexpression of Slug in PTC was signifi-cantly associated with capsular invasion and lymph node metastasis (P < 0.05). Conclusion Overexpression of Slug in PTC is associated with capsular invasion and lymph node metastasis , these may suggest some clinical significance of Slug expression in PTC in predicting lymph node metastasis and prognosis.

Objective To explore the situation and influencing factors of nursing risk consciousness among baccalaureate nursing students,and provide basis for relevant countermeasures.Methods Using the phenomenological research method of qualitative research,ten practice nursing students in Nanjing University of Chinese Medicine were selected from Feburary to March 2016 and interviewed by semi-structured face-to-face in-depth interview. Data were analyzed by the Colaizzi content analysis method,and themes were gained. Results The risk consciousness of nursing students was poor. There were three aspects of influencing factors including personal factors,school education and hospital management.Conclusions Personal factors are the key for risk perceptions of nursing students;school education is the main way that nursing students gaining knowledge about risk protection; hospitals and teachers are the important factors affecting risk perceptions of nursing students.

This study was to investigate the current status of neonatal screening in China, to further clarify the incidences of hyperphenylalaninemia (HPA) and congenital hypothyroidism (CH). From 2000 to 2007, a total of 17,961,826 newborns had been screened for HPA and 1527 cases were detected, giving a HPA prevalence of 1:11,763. At the same time, 18,284,745 newborns had also been tested for CH, with 8918 cases being detected (1:2050). It is remarkable that the mean number of newborns screened per year had increased 5 times between 2000 and 2007. In Shanghai, 116,000 newborns were screened using tandem mass spectrometry and 6 different were detected. The overall prevalence of an inborn errors of metabolism identified was 1 in 5800 healthy newborns, with hyperphenylalaninemia being the most common. Neonatal screening had developed rapidly in China in recent years, and a pilot study using tandem mass spectrometry has been started. The biggest challenge is still to increase coverage to the entire country, especially in the mid-western area.
China ; Congenital Hypothyroidism ; diagnosis ; Humans ; Infant, Newborn ; Neonatal Screening ; Phenylketonurias ; diagnosis

OBJECTIVE To analyse the result of mastoid abnormal MRI singals in infants without clinical symptoms and to evaluate the diagnostic value. METHODS The MRI data of abnormal signals in the middle ear and mastoid of 42 infants(62 ears) were analyzed with 1000 Hz probe tone tympanometry and oto-endoscope. RESULTS Of the infants with abnormal MRI signals of the middle ear and mastoid, 50 ears were secretory otitis media(80.7％), 10 ears had dysfunction of middle ear (16.1％), and 2 ears were not identified. CONCLUSION In the infant who had a abnormal long T2 singals MRI but without clinical symptoms, 80.7％ were caused by SOM or AOM. It is valuable for clinical efficacy evaluation and treatment planning in advance.

Objective? To explore the intervention effects of health education based on precede-proceed model on preventing recurrence in patients with upper urinary calculi. Methods? Totally 110 patients with upper urinary calculi admitted in Lanzhou Military Region General Hospital between January and June 2017 using convenient sampling and divided into the treatment group (n=55) and the control group (n=55) according to the random number table. Patients in the control group received conventional health education, while patients in the treatment group received health education based on precede-proceed model on this basis. Disease-related knowledge scores, health behavior scores and recurrence of disease 12 months after discharge were compared between the two groups. Results? The calculi-related knowledge score and the health behavior score of the treatment group 12 months after discharge were (13.0±1.7) and (127.5±14.8), higher than those of the control group, which were (11.9±1.9) and (120.7±14.3), and there were statistically significant differences (t=-4.940,-2.377; P＜0.05). The recurrence rate of calculi of the treatment group 12 months after discharge was 1.9%, while that of the control group was 12.0%, and there was statistically significant difference (χ2=4.050, P＜0.05). Conclusions? Health education based on precede-proceed model can improve the knowledge level of patients with upper urinary calculi, facilitate their health behavior, and reduce the recurrence rate of calculi.

【Objective】 To clarify the concept of health literacy among children and adolescents with accidental injuries through literature review and analysis. 【Methods】 A systematic search was conducted across multiple databases, including China National Knowledge Infrastructure, Wanfang database, VIP database, China Biomedical literature database, PubMed, CINAHL, and PscyINFO database. The literature was analyzed using Rodgers′ evolutionary concept analysis method. 【Results】 A total of 56 articles were included. The health literacy of children and adolescents with accidental injuries comprised three conceptual attributes:cognition, emotion and behavior. The influencing factors included children′s demographic factors, family and school related factors and social related factors. The result can be beneficial to reduce the occurrence of injury events, save family economic expenditure and alleviate the burden on social medical resources. However, there is currently a lack of specific measurement tools for assessing health literacy in this population, as the existing evaluation items are drawn from general health literacy scales. 【Conclusions】 The concept of health literacy among children and adolescents with accidental injuries is multifaceted and evolving. Future research should focus on exploring the characteristics of health literacy among children and adolescents of different ages and regions from their own perspectives. Additionally, efforts should be made to refine the concept and develop specialized measurement tools to facilitate further studies in this area.