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Objective:To investigate the current status of the employment quality of public health graduates and feedback from employers.Method:s The questionnaires covering employing fields, coherence between major and employment, ways to find job and feedback from employers were used. A total of 309 bachelor graduates majoring in public health from Grade 2011 to Grade 2016 were selected as study objects via random cluster sampling method. In addition, online and offline synchronization survey were adopted to collect employment data; SPSS 22.0 was used for analyzing the data. Employment quality of graduates from different specialties as well as feedback of employers were compared.Result:s Bachelor graduates in public health had an employment rate of 100%; 19.75% (61/309) graduates in public health changed work place, while the most had a stable job; 50.10% (155/309) graduates had work relatively or fully related to their specialties. Bachelor graduates in public affairs management had a relatively high level of satisfaction in salary, welfare insurance and others (χ 2=18.805, P=0.043). Employers were satisfied with the bachelor graduates generally, but also believed that their professional knowledge and innovation ability should be improved. Conclusion:The overall employment quality of bachelor graduates in public health is good, but there is still room to improve the quality. The overall evaluation for graduates is high, and few organizations consider bachelor graduates of poor quality. In summary, schools should optimize course setting, cultivate comprehensive quality, and strengthen students' humanistic education.
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Objective@#Positron emission tomography-computed tomography (PET-CT) has been used to quantify inflammatory response in the body. The aim of the present study was to explore the possibility of using this method to evaluate the stability of atherosclerotic plaques and the efficacy of atorvastatin in stabilizing atherosclerotic plaques.@*Methods@#Twenty New Zealand male white rabbits were included and divided into the atorvastatin intervention group and the control group, with 10 rabbits in each group. Rabbits in both groups were fed with a high fat diet for 20 weeks, and treated with thoracoabdominal aortic balloon-pulling to establish atherosclerosis model at the end of the 2nd week. Rabbits in atorvastatin intervention group was given atorvastatin intragastrically once a day. At the 8th week, thoracoabdominal aortic ultrasound was used to detect plaques in all rabbits. Blood was drawn at the 3rd and the 20th week, respectively, to measure blood lipids, high-sensitive C-reactive protein (hs-CRP) and matrix metalloproteinase-9 (MMP-9). At the end of experiment, survival animals were scanned by 18F-FDG PET-CT, and the average and maximum standard uptake values (SUVmean, SUVmax) of aortic segments were measured. Thereafter, the animals were sacrificed and aortic specimens of rabbits were taken and examined by immunohistochemistry. The pathological indexes were measured and compared.@*Results@#At the end of experiment, the total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), hs-CRP [ (4.58±0.51) ng/ml vs.(5.87±0.66) ng/ml, P<0.01], MMP-9[ (43.93±2.16) ng/ml vs. (50.77±2.32) ng/ml, P<0.01], SUVmean (0.59±0.15 vs. 0.68±0.20, P<0.05) , SUVmax (0.68±0.20 vs. 0.81±0.27, P<0.05) , plaque area [ (0.36±0.24) mm2 vs. (0.50±0.34) mm2, P<0.05) ] and density of macrophage[ (4.34±1.54) % vs. (5.65±1.89) %, P<0.01] in the atorvastatin intervention group were significantly lower than those in the control group. In contrast, fiber cap thickness of the plaque[ (4.12±0.66) μm vs. (2.96±0.37) μm, P<0.01] in the atorvastatin intervention group was higher than that of the control group, and the difference was statistically significant. The arterial plaque areas were positively correlated with SUVmean (r=0.27, P<0.05) and SUVmax (r=0.43, P<0.01) . Fiber cap thickness was negatively correlated with SUVmean (r=-0.38, P<0.05) and SUVmax (r=-0.47, P<0.01) . The density of macrophage were positively correlated with SUVmean (r=0.52, P<0.01) and SUVmax (r=0.51, P<0.01) .@*Conclusion@#18F-FDG PET/CT can be used to evaluate the efficacy of atorvastatin by the stability of atherosclerotic plaques.
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Radiomics and radiogenomics are used to provide comprehensive tumor biological characte-ristics and further clinical information by extracting,screening and analyzing the most valuable quantitative ra-diomics features. In recent years,numerous studies have shown that radiomics plays a role in the diagnosis, treatment and predicting efficacy and prognosis of lung cancer. Radiogenomics shows a great value in the pre-diction of lung cancer gene phenotype and individualized precision treatment by combining radiomics features with genomics,proteomics and so on. Radiomics and radiogenomics are non-invasive,quantitative,and repro-ducible,and they can provide multidirectional tumor biological characteristics,which are expected to be widely used in the precise medical treatment of lung cancer in the future.
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The judgment of early curative effect is important to the treatment of nasopharyngeal carcinoma and the prognosis of the patients.As a rapid imaging technique,magnetic resonance diffusion weighted imaging (DWI) is used to quantitatively analyze the changes of water molecules in the tissue by means of apparent diffusion coefficient (ADC),so as to diagnose the small lesions of nasopharyngeal carcinoma accurately,evaluate the early curative effect and observe the prognosis.With the continuous improvement and progress of MRI and data analysis technology,DWI in the diagnosis and treatment of nasopharyngeal carcinoma shows a broader application prospect.
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Purpose 18F-FDG PET/CT,pathological and immunohistochemical analysis are adopted to explore the value of PET/CT in the early-stage calcification examination of atherosclerosis in rabbits and effects of Pioglitazone in treating early-stage calcification.Material and Methods Sixteen New Zealand male rabbits were randomly divided into two groups:Pioglitazone group and control group,witheight rabbits in each group.Atherosclerosis model was established.Rabbits in Pioglitazone group received gavage with Pioglitazone and were raised with high-fat diet for 20 weeks.Blood was drawn to exam high sensitivity C-reactive protein and matrix metalloproteinase-9.PET/CT was used to measure mean standardized uptake value (SUVmean) and maximum standardized uptake value (SUVmax).Rabbit aorta received immunohistochemical,the plaque area,density of macrophage,percentage of calcification area and apoptosis index between the two groups were determined and compared.Results On 20 week,high sensitivity C-reactive protein in Pioglitazone group (4.27±0.43 vs.6.51 ±0.91,P＜0.01),matrix metalloproteinase-9 (41.52± 1.99 vs.62.21 ±3.60,P＜0.05),SUVmean (0.55±0.18 vs.0.68±0.21,P＜0.01)and SUVmax (0.70±0.19 vs.0.82±0.30,P＜0.05) were obviously lower than those in control group.Plaque area,density of macrophage,percentage of calcification area and apoptosis index in control group were obviously higher than those in Pioglitazone group.Plaque area of related artery section was positively correlated with SUVmean (r=0.28,P＜0.01) and SUVmax (r=0.25,P＜0.05).Density of macrophage was positively correlated with SUVmean (r=0.50,P＜0.01) and SUVmax (r=0.46,P＜0.01).Percentage of calcification area was positively correlated with SUVmean (r=0.50,P＜0.01) and SUVmax (r=0.47,P＜0.01).Apoptosis index was positively correlated with SUVmean (r=0.61,P＜0.01)and SUVmax (r=0.60,P＜0.01).Conclusion Inflammation and macrophage apoptosis are of great importance in the early-stage of atherosclerosis.18F-FDG PET/CT imaging can be used to assess minor calcification.Pioglitazone can reduce inflammatory level of atherosclerosis of the experimented animals,inhibiting early-stage calcification.
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OBJECTIVE: To establish and optimize the preparation method of protoporphyrin disodium (NAPP) from non-anticoagulant porcine blood.METHODS: Heme was prepared from non-anticoagulant porcine blood firstly.Ferrous sulfide was added into heme to prepare NAPP by saponification and esterification reaction.UV absorption spectrum and infrared spectrum were applied for qualitative test,and ultraviolet spectrophotometry was adopted for quantitative detection of NAPP.Orthogonal experiment was used to optimize the preparation method of NAPP and to determine the optimal parameters of the preparation process.RESULTS: The preparation method of NAPP from non-anticoagulant porcine blood was established.10.6 g heme could be obtained from per kilogram of non-anticoagulant porcine blood and 3.46 g NAPP could be obtained from per 5 g heme.The purity quotient of NAPP was 88.8%.The optimal parameters for the preparation of NAPP were as followed: incremental amount of methanol vs.chloroform was 70 mL ∶ 120 mL in estrification process;Incremental amount of toluene vs.1 mol?L-1 sodium hydroxide-methanol solution was 50 mL ∶ 80 mL in saponification process.The sample was extracted by continuous therma reflux at 90 ℃ for 2.0 h.CONCLUSION: The established preparation method of NAPP from non-anticoagulant porcine blood is an ideal approach for the preparation of NAPP with simple operation,abundant raw material,short preparation cycle,low cost and high yield.