Objective:To investigate the prognosis and risk factors of IgA vasculitis nephritis (IgAVN) in children.Methods:A retrospective cohort study was conducted. Clinical data were collected from 264 children who were pathologically diagnosed with IgAVN at Department of Pediatric Nephrology, Tongji Hospital, affiliated with Tongji Medical College, Huazhong University of Science and Technology, between January 2011 and December 2017. All patients had a follow-up period of more than 3 years. Clinical characteristics, renal pathology, 3-year and 5-year prognosis were analyzed. The patients were grouped based on gender, age of onset (≤6 years, >6-9 years, and >9 years), pathological classification (≤Ⅲ and>Ⅲ),whether the prognosis was complete remission at 3 and 5 years. Independent sample t-tests, ANOVA or chi-squared test were used for intergroup comparisons. Spearman correlation analysis was applied for ordinal data, and multivariate Logistic regression was used to analyze factors affecting the prognosis. Receiver operating characteristic (ROC) curve was utilized to evaluate the predictive value of these factors. Results:Of the 264 children with IgAVN, 153 were male and 111 were female, the age of onset was 8.3 (6.7, 10.3) years, 118 patients (45%) with onset age >6-9 years accounted for the highest proportion. All patients presented with skin purpura and renal involvement, primarily manifesting as hematuria and/or proteinuria. Microscopic hematuria was observed in 253 patients (95.8%), while 246 patients (93.2%) showed proteinuria. In 256 patients (97.0%), hematuria or proteinuria urinalysis was detected within 6 months of skin purpura onset, and 243 patients (92.0%) underwent renal biopsy within 6 months of renal involvement. The most common clinical subtype in 264 IgAVN children was hematuria and proteinuria (204 cases, 77.3%), with grade Ⅲ being the predominant pathological classification (181 cases, 68.6%). Among children ≤6 years old, the 3-year complete remission rate was higher in males than in females (83.9% (26/31) vs. 7/16, χ2=8.12, P=0.012). Factors independently associated with poor 5-year prognosis included time from hematuria or proteinuria urinalysis to renal biopsy >6 months, elevated serum cholesterol levels, and incomplete remission 3 years post-biopsy ( OR=5.41, 1.39, 6.02, 95% CI 1.40-20.86, 1.04-1.84, 2.61-13.88, all P<0.05). The serum cholesterol has a predictive value for 5-year prognosis ( P=0.020, AUC=0.62, 95% CI 0.52-0.71, Youden index=0.27, cutoff=4.37). Conclusions:For children with IgAVN aged≤6 years, the 3-year prognosis is better in males than in females. Time from hematuria or proteinuria urinalysis to renal biopsy >6 months, elevated serum cholesterol levels, and incomplete remission at 3 years post-biopsy may be independent risk factors for poor 5-year prognosis in children with IgAVN.

Fire safety is crucial for the regular operation of large public hospitals.This paper elaborates on the funda-mental guidelines for fire safety management in large hospitals.Under the framework of collaborative governance theory,it also analyzes and points out that the standardization of peoples behavior in hospitals and the integrity of fire safety facilities are the pri-mary factors influencing the efficacy of fire safety management.Subsequently,based on management practices,it suggests focu-sing on"five synergies"in enforcing primary responsibility for fire safety,namely,the implementation of fire safety main respon-sibilities in synergy,the regular inspection and rectification of fire hazards in synergy,the training and evaluation of basic fire safety skills in synergy,the lifecycle management of fire safety facilities in synergy,and the building of a fire safety management team in synergy.This approach aims to maximize overall fire safety effectiveness and comprehensively enhance the level of fire safety management in hospitals.Finally,the paper discusses and calls for further enhancements in the management of fire safety in large public hospitals.

Long noncoding RNAs (lncRNAs) play a critical role in the regulation of atherosclerosis. Here, we investigated the role of the lncRNA growth arrest-specific 5 (lncR-GAS5) in atherogenesis. We found that the enforced expression of lncR-GAS5 contributed to the development of atherosclerosis, which presented as increased plaque size and reduced collagen content. Moreover, impaired autophagy was observed, as shown by a decreased LC3II/LC3I protein ratio and an elevated P62 level in lncR-GAS5-overexpressing human aortic endothelial cells. By contrast, lncR-GAS5 knockdown promoted autophagy. Moreover, serine/arginine-rich splicing factor 10 (SRSF10) knockdown increased the LC3II/LC3I ratio and decreased the P62 level, thus enhancing the formation of autophagic vacuoles, autolysosomes, and autophagosomes. Mechanistically, lncR-GAS5 regulated the downstream splicing factor SRSF10 to impair autophagy in the endothelium, which was reversed by the knockdown of SRSF10. Further results revealed that overexpression of the lncR-GAS5-targeted gene miR-193-5p promoted autophagy and autophagic vacuole accumulation by repressing its direct target gene, SRSF10. Notably, miR-193-5p overexpression decreased plaque size and increased collagen content. Altogether, these findings demonstrate that lncR-GAS5 partially contributes to atherogenesis and plaque instability by impairing endothelial autophagy. In conclusion, lncR-GAS5 overexpression arrested endothelial autophagy through the miR-193-5p/SRSF10 signaling pathway. Thus, miR-193-5p/SRSF10 may serve as a novel treatment target for atherosclerosis.
Humans ; Atherosclerosis/genetics* ; Autophagy/genetics* ; Cell Cycle Proteins/metabolism* ; Endothelial Cells/metabolism* ; Endothelium/metabolism* ; MicroRNAs/metabolism* ; Repressor Proteins/metabolism* ; RNA Splicing Factors ; Serine-Arginine Splicing Factors/genetics* ; RNA, Long Noncoding/metabolism*

Objective:To observe the effects of different kinesio taping methods on hand swelling, shoulder pain, upper limb motor function and ability in the activities of daily living of stroke survivors with shoulder-hand syndrome.Methods:Sixty stroke survivors with shoulder-hand syndrome were randomly divided into groups A, B, C and a control group, each of 15. In addition to routine rehabilitation training and drug treatment, as well as claw-shaped and I-shaped taping of the hand and wrist, group A received I-shaped kinesio taping, B received Y-shape and C received I-shape plus Y-shaped taping of the shoulder. Before and after 4 weeks, the drainage method was employed to calculate the difference in volume between the two hands. Their temperatures were also measured. The subjects reported shoulder pain using a visual analog scale (VAS). Upper limb motor functioning was quantified using Fugl-Meyer scores, and difficulties in the activities of daily living were evaluated using the modified Barthel index (MBI).Results:Before the treatment there were no significant differences among the four groups in terms of any of the measurements. Afterward the treatment, significant improvement was observed in the volume and temperature differences between hands, as well as in the VAS, FMA and MBI scores. After the treatment, group C′s average FMA score was significantly higher than those of the other groups. There was no significant difference in MBI scores among the four groups.Conclusions:Supplementing rehabilitation training with I-shaped plus Y-shaped kinesio taping can effectively reduce the volume and temperature differences between the hands, relieve shoulder pain, and improve effectiveness in the activities of daily living of persons with shoulder-hand syndrome after a stroke. Hand-claw and wrist-I taping also have some effect.

Objective: To understand the awareness of sexual knowledge among primary and secondary school students, as well as their attitudes towards school sex education and to provide a reference for school-based sex education. Methods: A total of 5 531 primary and secondary school students were selected from Beijing, Chongqing, Heilongjiang (Harbin and Jiamusi) and Hubei (Wuhan and Xiaogan) by stratified cluster sampling and were investigated with self-reported questionnaire. Results: Sex-related knowledge scored 62.33±19.35, with a pass rate of 61.9%, and the excellent rate 17.5%. Sexual knowledge of junior high school students scored 64.30±19.07, with the pass rate of 64.7%, and the excellent rate 22.0%. A large proportion of primary students reported unaware of pubertal growth and HIV/AIDS-related knowledge, and a large proportion of junior high students unaware of reproductive physiology. Multivariate Logistic regression analysis showed region, grade, gender, and suburban areas were related to the level of sexual knowledge(P<0.05). More than 76.0% primary students and 85.9% middle school students agreed on the importance of school sexuality education. 59.7% of primary school students and 73.3% of junior high school students hoped to include school sexuality education in compulsory education courses; 59.8% of primary school students and 68.3% of junior high school students felt that school sexuality education should be equipped with specialized teachers. Conclusion Chinese primary and secondary school students are lack of sexual knowledge. As students have strong wills to get more information on sexual knowledge, schools should provide them with more comprehensive and effective sex education through appropriate courses and activities.

Objective To investigate the relationship between nutritional risk status and implementation of nutrition therapy in mechanical ventilated (MV) chronic obstructive pulmonary disease (COPD) patients, so as to provide evidence for individualized nutrition therapy. Methods A prospective multicenter observational study was conducted. MV COPD patients admitted to Department of Intensive Care Units (ICU) of 10 County Hospitals in Zhejiang Province from January 2015 to January 2016 were enrolled, and according to nutrition risk screening 2002 (NRS2002) score, they were divided into nutritional high risk group (NRS2002 3-5) and nutritional extremely high risk group (NRS2002 6-7). Nutrition therapy situation and hospital mortality were compared between the two groups; multivariate Cox regression analysis was used to analyze the risk factors affecting the prognosis of patients with COPD under mechanical ventilation. Kaplan-Meier curve was used to analyze the prognosis at 30 days; receiver operating characteristic (ROC) curve was used to test the robustness of multivariable regression analysis. Results ① One hundred and six COPD patients with MV were analyzed; among them, 90 patients were in the nutritional high risk group, and 16 were in the nutritional extremely high risk group. There were no significant differences in age, gender and body mass index (BMI) between the two groups (all P > 0.05); the acute physiology and chronic health evaluation Ⅱ (APACHEⅡ) score, NRS2002 score in patients of nutrition risk extremely high group were obviously higher than that in patients with nutrition high risk group (APACHEⅡ: 24.9±6.1 vs. 20.3±5.8, NRS2002 score: 6.3±0.5 vs. 4.2±0.8, both P < 0.05). ② Patients in both groups received early enteral nutrition (EN) therapy, the proportion of patients in nutritional extremely high risk group received early EN was lower than that of patients in the nutritional high risk group [12.5% (2/16) vs. 17.7% (16/90)], along with the prolongation of hospital stay, the proportions of patients beginning to receive the EN were gradually increased in the nutrition extremely high risk group and high risk group, after 2 days the EN increased significantly, and reached the highest value on day 6 after entering ICU [100.0% (16/16), 98.9% (89/90), respectively]; within 3 days after admission into ICU, the proportion of EN in nutrition extremely high risk group was obviously lower than that in nutrition high risk group, and from day 4, there was no statistical significant difference in proportion of EN between the two groups (all P > 0.05). The time to start parenteral nutrition (PN) treatment was relatively early admission to the ICU on day 1 and the proportion of this therapy was high in the two groups [56.2% (9/16), 27.7% (25/90), respectively], the PN proportion did not decrease with the length of hospitalization and the increase of EN. The proportion of patients in the nutrition extremely high risk group who started PN treatment was higher, which reached 56.2% admission to the ICU on day 1.③ With extension of hospital stay, the calories of EN were gradually increased in the nutritional high risk group, the highest calories in nutritional high risk groups was 4 318 (3 912, 4 812) kJ/d at day 7; while the highest calories in nutritional extremely high risk groups was 3 602 (2 167, 4 615) kJ/d at day 6 and a slight decreased at day 7; the difference of calories within the first week between the two groups had no significance (all P > 0.05). The calorific value of PN therapy remained at a constant level during hospitalization within 7 days, and after admission into ICU for 4-5 days, the target range of calories was achieved. ④ Kaplan-Meier survival curve analysis showed that the mortality at 30 days in the extremely high risk group was significantly higher than that in the high risk group [62.5% (10/16) vs. 11.1% (10/90), χ2 = 15.4, P < 0.01]. ⑤ Multiple cox-regression analysis showed that NRS2002 scoring was the independent risk factor affecting the mortality of patients in hospital [odds ratio (OR) = 2.08, 95% confidence interval (95%CI) = 1.39-3.12, P = 0.005]. ⑥ ROC curve analysis: according to ROC curve analysis of the effectiveness of multi-factor regression model, area under ROC curve (AUC) was 0.79, sensitivity was 70.00%, specificity was 74.42%, positive likelihood ratio was 2.74, negative likelihood ratio was 0.40, 95% confidence interval (95%CI) was 0.702-0.864, P = 0.001, and it showed that the regression model had a good prediction effect. Conclusions MV COPD patients have significant nutritional risk and all receive early EN therapy. The proportion of beginning to use PN treatment in patients with nutritional extremely high risk is relatively high. Initial nutritional status is the independent risk factor of poor prognosis in MV patients with COPD.

Objective To investigate the learning curve of contrast-enhanced ultrasonography ( CEUS) in sentinel lymph node( SLN ) of breast cancer and provide a theoretical basis for leaners to learn SLN CEUS . Methods The multi-center study of SLN CEUS in breast cancer" was planned by Sichuan Cancer Hospital . According to the uniform inclusion and exclusion criteria , 511 patients with complete clinical data and follow-up results from 9 hospitals in Multi-center were included in this study . According to the inspection time ,the patients were divided into 3 groups named as group A ( 170 patients) ,group B ( 170 patients) and group C ( 171 patients ) ,respectively . The basic clinical data ,ultrasound imaging data , intraoperative and postoperative pathological findings of all patients were recorded . With the accumulation of cases examined ,analysis was performed to find the learning curve of the SLN CEUS examination time , SLN CEUS detection rate ,SLN CEUS surface marking accuracy rate and SLN CEUS diagnosis rate ,the learning curve was analyzed . Results ① There was no statistical significant difference in patients ages , tumors sizes ,tumors locations ,SLNs numbers and LCs numbers among the three groups( all P > 0 .05) . ②As the number of cases examined increases ,the examination time was reduced gradually ,but SLN detection rate ,surface marking accuracy and SLN diagnostic coincidence rate were increased gradually( F = 151 .75 , 1 .96 ,7 .49 ,5 .50 ; P = 0 .000 ,0 .143 ,0 .001 ,0 .005 ) . Conclusions The skill of the doctor is improved gradually when learning SLN CEUS . With the number of the cases increase ,the operating time of SLN CEUS is shorted ,and the SLN detection rate ,surface marking accuracy and SLN diagnostic coincidence rate of SLN-CEUS are gradually increased . It has an important clinical significance for beginners to learn the SLN CEUS technology .

Objective To investigate the extraction process of Yuchang granules .Methods The extraction process was optimized by orthogonal experiment based on the content of berberine ,atractylodes lactone Ⅰ and the extraction yield .Results Through the visual analysis of orthogonal experiment ,the analysis of variance and the verification experiments ,the optimum extraction process was obtained as follows :extracting 1 h for twice with 10 times water of medicinal herbs and the 70％ ethanol depositing concentration .Conclusion This process is consistent and feasible .It is a simple and convenient method to extract Yuchang granules .

Objective To compare the effect of Devine surgery with different fixed positions in the treatment of concealed penis.Methods According to the different fixed positions,45 patients with concealed penis in our hospital from January 2010 to February 2015 were divided into two groups:20 patients were treated with the method that fixing the scapus penis to dermis of the penis' root (group A);the other 25 patients were treated with the method that fixing the scapus penis to pectineal fascia (group B).The surgical success rate,the penile length,and the edema time after surgery between two groups were compared.Results There was no significant difference in surgical success rate and edema time between two groups (P ＞ 0.05).But the penile length of group B was longer than that of group A after surgery (P ＜ 0.05).Conclusion In the treatment of concealed penis with Devine surgery,comparing to the method which fixing scapus penis to dermis of penis'root,the method which fixing scapus penis to fascia pectinea is much better in penile length and penile appearance.

Objective To investigate the expression of matrixmetalloprotein -9(MMP-9)and E-cad-herin in triple negative breast cancer ( TNBC) and its relationship with the clinicopathologic features of TNBC .To analyze the function of MMP -9 and E-cadherin in TNBC .Methods Immunohistochemical method was used to detect the expression of MMP -9 and E-cadherin in 127 cases of TNBC.Results The MMP-9 positive rate was 53.54%and E-cadherin positive grade was 32.28%in TNBC.Expression of MMP-9 was correlated with tumor size(P=0.007),histological grade(P=0.006),TNM stage(P=0.003),lymph node metastasis(P=0.000)and lymph duct invasive(P=0.000).Expression of E-cadherin was correlated with lymph node metasta-sis(P=0.016)and lymph duct invasive(P=0.015).However,they were not correlated with other factors .Con-clusion The expression of MMP -9 and E -cadherin was correlated with invasion and metastasis in TNBC , which could be an important research topic in the future studies .