Mediating effects of social participation quality on the relationship between perceived social constraints and mental health status in first stroke patients / 中国实用护理杂志

Objective:To explore the relationships among perceived social constraints, social participation, as well as anxiety and depression in first stroke patients, and to further analyze the mediating effect of social participation on these variables.Methods:A total of 216 first stroke patients in the Department of Neurology of Affiliated Hospital of Qingdao University from April to December 2020 were recruited by convenience sampling and investigated by general information questionnaire, Social Constraints Scale (SCS), Chinese version of Impact on Participation and Autonomy Questionaire (IPA-C) and Hospital Anxiety and Depression Scale (HADS).Results:The total score of SCS, IPA-C, depression and anxiety were 33.49 ± 6.81, 43.42 ± 9.62, 8.05 ± 4.15 and 8.61 ± 2.59. Social constraints were positively correlated with social participation as well as anxiety ( r=0.644, 0.383, both P<0.05). Social constraints were positively correlated with social participation as well as depression ( r=0.482, 0.371, both P<0.05). The quality of social participation partially mediated the relationship between social constraints and anxiety (intermediary effect was 0.119), and also partially mediated the relationship between social constraints and depression (intermediary effect was 0.270). Conclusions:First stroke patients experience high level of social constraints, low quality of social participation and severe anxiety and depression. Social constraints can affect anxiety and depression through social participation. Medical staff should build a good environment to meet the needs of stroke patients of social participation, help patients to establish a correct psychological coping style, reduce patients' avoidance of social participation due to perceived constraints and exclusion, and thus promote the mental health of patients.

Aerobic exercise reduces hepatic lipid deposition in non-alcoholic fatty liver disease / 中华物理医学与康复杂志

Objective:To observe any effect of aerobic exercise on lipid deposition in the liver and monoacylglycerol O-acyltransferase 1 (MGAT1) signaling in non-alcoholic fatty liver disease (NAFLD).Methods:Male Sprague-Dawley rats were fed a 45% diet fat for 6 weeks, after which they were confirmed to have NAFLD. The rats were then randomly divided into an exercise group, a sedentary group and a diet adjustment group. The exercise and sedentary groups remained on the high-fat diet, but the exercise group underwent 8 weeks of aerobic exercise, while the diet adjustment group returned to a normal diet without any exercise. After the intervention, lipid accumulation in liver tissues was detected by hematoxylin-eosin staining and hepatic steatosis indices were calculated. Liver MGAT1 and the expression of peroxisome proliferator activated receptor γ (PPARγ) protein were detected using western blotting.Results:Liver steatosis indices in the exercise and the diet adjustment groups had decreased significantly after the eight weeks. The expression of MGAT1 protein had decreased significantly in the exercise group and the expression of PPARγ protein had increased significantly. Compared with the sedentary group, no significant changes were observed in the expression of MGAT1 protein in the livers of the diet adjustment group, though their average PPARγ protein expression had increased significantly. Compared with the diet adjustment group, the average liver steatosis index had increased significantly in the exercise group, but the expression of MGAT1 protein had decreased significantly.Conclusions:Aerobic exercise can significantly improve liver lipid deposition in NAFLD, at least in rats. The mechanism may be related to inhibition of the MGAT1 signal pathway. Aerobic exercise may be a rehabilitation intervention for NAFLD patients.

Full-length 16S rRNA gene sequencing reveals spatiotemporal dynamics of bacterial community in a heavily polluted estuary, China.

Understanding the bacterial community structure of the river estuary could provide insights into the resident microorganisms in response to environmental pollution. In this study, the bacterial community structure of Liaohe Estuary was investigated using single-molecule real-time sequencing (SMRT). A total of 57 samples were collected and grouped according to habitat, space, season, and lifestyle. In seawater, regardless of whether it is particle-attached (PA) or free-living (FL) bacteria, the area with higher alpha diversity is the nearshore area in the dry season, while it is the midstream area in the wet season. The bacterial communities in sediment and seawater samples were different at the genus level in the nearshore area, and habitat type was the main factor. A marked difference in the bacterial community was observed in the dry season between different lifestyles but not in the wet season, which resulted from lifestyle transitions of bacterioplankton. Bacterial community varied spatially but not seasonally in sediment samples. In seawater, both FL and PA bacterial communities varied spatially during the wet season. Seasonal differences were only observed in FL bacterial community. Zn and sand were the principal determining factors of the bacterial community in the sediment, Cu and salinity were the main environmental factors for FL bacteria, and Cu, salinity, Zn and temperature were the main environmental factors for PA bacteria. Besides, the tide and nutrients were also the main drivers of the bacterial community in seawater. The indicative taxa, related to Cyanobium_PCC-6307, Pseudomonas and Vibrio, further evidenced the presence of possible bloom, crude oil and pathogen contamination. Overall, our results can contribute to the knowledge of the bacterial community and anthropogenic impacts on the Liaohe Estuary.

The review of inspection methods of X-ray lead protective clothing / 中华放射医学与防护杂志

The quality evaluation of X-ray protective clothing at home and abroad is mainly intended for the quality inspection of lead protective clothing. There is no unified standard to be developed for the test of lead protective clothing during use. When lead protective clothing with defective quality is used many times, this phenomenon will pose a greater safety hazard to radiation workers and patients. Therefore, in order to protect the health of radiation workers and patients, the implementation of regular testing and quality evaluation of lead protective clothing and the development of a standardized management system are important. This review introduces the domestic and international inspection method of X-ray lead protective clothing, summarizes the inspection and evaluation method in use, including shield transmission coefficient, defect detection and uniformity test, puts forward relevant suggestions to provide reference for the managers and practitioners of relevant institutions.

Construction and application of three-dimensional evaluation model of single bed efficiency in hospital / 中华医院管理杂志

Objective:To build a three-dimensional evaluation model of single bed efficiency in an obstetrics and gynecology hospital and provide reference for bed management in hospital.Methods:The sample ward and key indicators were determined through interviews. A two-level database was built according to patients′ data from hospital information system. K-means cluster analysis was used to get the beds classified by annual average vacancy(x), annual average turnover(y) and annual average case-mix index per capita(z). The authors built the three-dimensional bed efficiency model with x, y, z as boundaries and analyzed the bed efficiency by comparing the within group average point A k( x k, y k, z k) with the overall average point A0( x, y, z). Whereafter the bed efficiency of each medical work team was analyzed. Results:Thirty-six beds were classified into 4 categories according to utilization efficiency. 50% of the beds(18 beds) were well used, 28%(10 beds) had room for improvement, and 19%(7 beds) may have resource waste. Significant differences existed in bed efficiency among medical work teams.Conclusions:The model in our study can realize in-depth exploration by evaluating bed efficiency from two aspects of the whole ward and each medical work team. This model, which is mainly applicable to the situation where beds are under the charge of fixed medical work groups or doctors, can be adjusted and extended to meet different strategic needs of hospitals.

Accurate Iterative FBP Reconstruction Method for Material Decomposition of Dual Energy CT.

Compared with traditional CT, dual energy CT (DECT) has the capability to improve material differentiation and reduce beam hardening artifacts, and thus has wide prospects of applications. In this paper, by linearizing the polychromatic projections with their first-order Taylor expansions, we derive an iterative reconstruction method for DECT. The method updates the basis material images by adding the residual images reconstructed from the residual projections to the current estimated basis material images, i.e., the iteration process of the proposed method is carried out in image domain, so it is applicable to both geometrically consistent and inconsistent projections. In addition, as the filtered back-projection method is used in the reconstruction of the residual images, the proposed method has a high degree of parallelism. Both numerical simulation and real-data experiments are performed, and the results confirm the effectiveness of the proposed reconstruction method.

Inspirations of UK's specialty training in obstetrics and gynecology for China / 中华医院管理杂志

This paper introduced the training system in obstetrics and gynecology(O&G) in the UK and the MRCOG exam organized by the Royal College of Obstetricians and Gynecologists.Comparisons between the O&G specialists training systems of China and UK found that China should better link the resident training and specialists training for a better posteducational medical education system.China should also try to build a China-UK O&G specialist training program to keep pace with the time,for more O&G specialists of international perspectives in China.

Clinical efficacy of injected autologous fat and buried polydioxanone threads for nasolabial fold filling / 中华医学美学美容杂志

Objective@#To investigate the clinical application of injected autologous fat and buried polydioxanone threads for nasolabial fold filling.@*Methods@#From April 2016 to October 2017, 64 cases of mild and moderate nasolabial fold beauty seekers from the First People＇s Hospital of Jiande were divided into group A and group B with their attitude. Group A (28 cases) were only treated with buried polydioxanone threads for nasolabial fold filling; Group B (36 cases) were treated with injected autologous fat and buried polydioxanone threads for nasolabial fold filling. The surgical effect was recorded for 18 months.@*Results@#The most common complications were swelling, bruising and pain immediately after the surgery. Polydioxanone threads exposure occurred in two cases in each group 2 weeks after the surgery. There were satisfactory results in skin color and skin texture in both groups. 9 cases showed inadequate correction in group A while only 2 cases showed inadequate correction in group B in long-term follow-up (>3 months).@*Conclusions@#Combined treatment of autologous fat and polydioxanone threads is safe and effective for nasolabial fold filling.

Establishment of tissue culture system of Sinopodophyllum emodi and identification of podophyllotoxin / 中草药

leaf(leafstalk) with 33.17,12.97,and 4.55 ?g/mL,respectively after 50 d.Conclusion The tissue culture system of S.emodi could be established and the method of production podophyllotoxin by root culture of S.emodi is feasible.