Associations of negative life events and coping styles with sleep quality among Chinese adolescents: a cross-sectional study

BACKGROUND@#Limited published research has examined the relationships of negative life events and coping styles with sleep quality in Chinese junior high school students. We aimed to investigate the prevalence of poor sleep quality and to clarify the role of coping styles between negative life events and sleep quality.@*METHODS@#A cross-sectional study of 3081 students was conducted in Ganzhou City, Jiangxi Province, Southeastern China. Adolescent Self-Rating Life Events Checklist, Simplified Coping Style Questionnaire, and Pittsburg Sleep Quality Index were applied to assess negative life events, coping styles, and sleep quality, respectively. Descriptive analyses, independent-samples t tests, one-way analyses of variance, Pearson correlation analyses, and structural equation modeling (SEM) were applied to analyze the data.@*RESULTS@#The prevalence of poor sleep quality was 26.7%. Negative life events (B = 0.038, P 0.05). The association between negative life events and sleep quality was mediated by negative coping styles.@*CONCLUSIONS@#Our results indicated that poor sleep quality was common in these Chinese adolescents. Negative life events and negative coping style were associated with an increased prevalence of poor sleep quality, while the positive coping style was related to a decreased prevalence of poor sleep quality. A negative coping style mediated the association between negative life events and sleep quality.

Establishment and associated factors of health records among young Chinese migrants

BACKGROUND@#Most Chinese migrants have been faced with obstacles to getting access to local public health services. Young migrants among internal migrants make a major contribution to the economy. However, the establishment of their health records has been ignored. This research was aimed at exploring the status and associated factors of the establishment of health records among young Chinese migrants.@*METHODS@#Data were obtained from the 2017 China Migrants Dynamic Survey (CMDS). Chi-square test and binary logistic regression were performed to investigate the associated factors of the establishment of health records among young Chinese migrants.@*RESULTS@#Approximately 30.2% of young migrants had their health records established in inflow communities. Urban residence, medical insurance (insured), and lower average monthly household income were attributed to the establishment of more health records. Young migrants who were in northeast China and across provinces and immigrated for working or engaging in trade were less likely to have health records established. Young migrants who participated in social activities and public affairs activities and took type of people in touch as natives in the inflow area showed a higher possibility of establishing health records. Meanwhile, receiving health education and hearing about national basic public health services (BPHSs) were beneficial for establishing the health records of more young migrants.@*CONCLUSION@#This study showed that the health records of young migrants had a relatively low establishment rate. Sociodemographic and migration characteristics, health status, public health services, and social integration factors were all related to the health record establishment of young Chinese migrants.

The experimental study on antisense TGF-beta 1 in inhibiting scar formation in III degree burn wound / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the effect of antisense TGF-beta 1 in inhibiting scar formation during wound healing.</p><p><b>METHODS</b>SD rats were divided into three groups after skin burn: group one was treated with antisense TGF-beta 1 oligonucleotide; group two was treated with antisense TGF-beta 1 recombinant plasmid and the control group. In different time, RT-PCR and immunohistochemistry were used to verify the expression of TGB beta 1 mRNA and protein. Type I Collagen mRNA expression was determined by hybridization in situ. Inflammatory reaction and collagen distribution were observed pathologically.</p><p><b>RESULTS</b>In the groups received antisense ODN and recombinant plasmid, the expression of TGF-beta 1 mRNA and protein reduced during 14 days after burn. In the control group, type I collagen mRNA began to express at the second week and reached a peak at the fourth week, while the antisense groups kept low expression. The antisense group also showed mild inflammatory reaction and less synthesis of collagen.</p><p><b>CONCLUSION</b>Antisense TGF-beta 1 could prevent the scar formation during wound healing.</p>

Study of IL-1?, TNF-? and IL-6 gene expression for peripheral blood mononudear cells in non-dialysis uremic patients / 中华肾脏病杂志

To determine whether uremia per se can activate peripheral blood mononuclear cells (PBMCs). Methods Maintained hemodialysis patients with cuprophane, non-dialysis uremic patients and healthy volunteers were selected to investigate IL-1?、 TNF-? and 11,6 mRNA in PBMCs by RT-PCR and cells in situ hybridization. Results IL-1?,TNF-? and IL-6 mRNA in PBMCs were undetected in healthy volunteers, but these cytokine gene expression were detected in hemodialysis patients and non-dialysis uremic patients. IL-1?、TNF-? and IL-6 mRNA level was lower in non-dialysis uremic patients than that in hemodialysis patients. Conclusion Uremia per se or its related factors may activated PBMCs and the preactivation of PBMCs might be associated with the body resistance against infection in uremic patients.

Expression of hepatocyte growth factor and c-met stimulated by high glucose in human kidney fibroblast and its significance / 中华内分泌代谢杂志

Objective To observe high glucose induced expression of hepatocyte growth factor (HGF) and c met in human kidney fibroblast. Methods The effects of glucose concentrations on expression of HGF, c met and plasminogen activator inhibitor (PAI) 1 in cultured human kidney fibroblasts were observed by RT PCR. In the same system, the effect of exogenous HGF on the expression of PAI 1 was investigated. Results Human kidney fibroblasts cultured in high glucose concentration (25 mmol/L) showed higher HGF and c met expressions in the early stage and then manifested a gradient decrease of HGF and c met expressions, but PAI 1 expression was gradiently increased. Exogenous HGF resulted in inhibiting PAI 1 expression. Conclusion HGF is a potential anti fibrogenic factor and activates matrix degradation pathways in diabetic kidney by reducing PAI 1 expression.