目的探讨急性脑梗死(ACI)患者血清微小RNA-214(miR-214)的表达水平及其临床意义。方法选取2024年1月~2024年2月濮阳市安阳地区医院收治的ACI患者90例设为ACI组,选取同期健康体检者90例为对照组,比较两组血清miR-214水平,使用受试者工作...目的探讨急性脑梗死(ACI)患者血清微小RNA-214(miR-214)的表达水平及其临床意义。方法选取2024年1月~2024年2月濮阳市安阳地区医院收治的ACI患者90例设为ACI组,选取同期健康体检者90例为对照组,比较两组血清miR-214水平,使用受试者工作特征(ROC)曲线分析血清miR-214水平对ACI的诊断价值。根据入院24 h美国国立卫生研究院卒中量表(NIHSS)评分将ACI患者分为轻度组(n=44)和中重度组(n=46),比较两组血清miR-214水平和入院24 h NIHSS评分及其相关性。根据发病90 d改良Ranking量表(mRS)评分将ACI患者分为预后良好组(n=40)和预后不良组(n=50),比较两组血清miR-214水平和发病90 d mRS评分及其相关性。比较ACI组和对照组血清炎症因子水平,分析ACI患者血清miR-214表达水平及其与炎症因子水平的相关性。结果ACI组血清miR-214水平低于对照组(P<0.05)。ROC曲线结果显示,血清miR-214对ACI诊断的曲线下面积(AUC)为0.968,最佳截断值为0.71,灵敏度为96.67%,特异度为87.78%。中重度组血清miR-214水平较轻度组更低,NIHSS评分更高(P<0.05);ACI患者血清miR-214水平与NIHSS评分呈负相关性(r=-0.759,P<0.05)。预后不良组血清miR-214水平较预后良好组更低,mRS评分更高(P<0.05);ACI患者血清miR-214水平与mRS评分呈负相关性(r=-0.249,P<0.05)。ACI组血清白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、C反应蛋白(CRP)及中性粒细胞明胶酶相关脂质运载蛋白(NGAL)水平均高于对照组(P<0.05);ACI患者血清miR-214表达水平与血清IL-6、TNF-α、CRP及NGAL水平均呈负相关性(P<0.05)。结论ACI患者血清miR-214表达水平异常下降,对ACI具有较高诊断价值,且其与ACI病情严重程度、预后及炎症因子水平均呈负相关性,可能会影响疾病进展。展开更多
The existing maintenance strategies of offshore wind energy are reviewed including the specific aspects of condition-based maintenance, focusing on three primary phases, namely, condition monitoring, fault diagnosis a...The existing maintenance strategies of offshore wind energy are reviewed including the specific aspects of condition-based maintenance, focusing on three primary phases, namely, condition monitoring, fault diagnosis and prognosis, and maintenance optimization. Relevant academic research and industrial applications are identified and summarized. The state of art, capabilities,and constraints of condition-based maintenance are analyzed. The presented research demonstrates that the intelligent-based approach has become a promising solution for condition recognition, and an integrated data platform for offshore wind farms is significant to optimize the maintenance activities.展开更多
BACKGROUND The prognosis of many patients with distant metastatic hepatocellular carcinoma(HCC)improved after they survived for several months.Compared with tradi-tional survival analysis,conditional survival(CS)which...BACKGROUND The prognosis of many patients with distant metastatic hepatocellular carcinoma(HCC)improved after they survived for several months.Compared with tradi-tional survival analysis,conditional survival(CS)which takes into account changes in survival risk could be used to describe dynamic survival probabilities.AIM To evaluate CS of distant metastatic HCC patients.METHODS Patients diagnosed with distant metastatic HCC between 2010 and 2015 were extracted from the Surveillance,Epidemiology and End Results database.Univariate and multivariate Cox regression analysis were used to identify factors for overall survival(OS),while competing risk model was used to identify risk factors for cancer-specific survival(CSS).Six-month CS was used to calculate the probability of survival for an additional 6 mo at a specific time after initial diagnosis,and standardized difference(d)was used to evaluate the survival differences between subgroups.Nomograms were constructed to predict CS.Positiveα-fetoprotein expression,higher T stage(T3 and T4),N1 stage,non-primary site surgery,non-chemotherapy,non-radiotherapy,and lung metastasis were independent risk factors for actual OS and CSS through univariate and multivariate analysis.Actual survival rates decreased over time,while CS rates gradually increased.As for the 6-month CS,the survival difference caused by chemotherapy and radiotherapy gradually disappeared over time,and the survival difference caused by lung metastasis reversed.Moreover,the influence of age and gender on survival gradually appeared.Nomograms were fitted for patients who have lived for 2,4 and 6 mo to predict 6-month conditional OS and CSS,respectively.The area under the curve(AUC)of nomograms for conditional OS decreased as time passed,and the AUC for conditional CSS gradually increased.CONCLUSION CS for distant metastatic HCC patients substantially increased over time.With dynamic risk factors,nomograms constructed at a specific time could predict more accurate survival rates.展开更多
文摘目的探讨急性脑梗死(ACI)患者血清微小RNA-214(miR-214)的表达水平及其临床意义。方法选取2024年1月~2024年2月濮阳市安阳地区医院收治的ACI患者90例设为ACI组,选取同期健康体检者90例为对照组,比较两组血清miR-214水平,使用受试者工作特征(ROC)曲线分析血清miR-214水平对ACI的诊断价值。根据入院24 h美国国立卫生研究院卒中量表(NIHSS)评分将ACI患者分为轻度组(n=44)和中重度组(n=46),比较两组血清miR-214水平和入院24 h NIHSS评分及其相关性。根据发病90 d改良Ranking量表(mRS)评分将ACI患者分为预后良好组(n=40)和预后不良组(n=50),比较两组血清miR-214水平和发病90 d mRS评分及其相关性。比较ACI组和对照组血清炎症因子水平,分析ACI患者血清miR-214表达水平及其与炎症因子水平的相关性。结果ACI组血清miR-214水平低于对照组(P<0.05)。ROC曲线结果显示,血清miR-214对ACI诊断的曲线下面积(AUC)为0.968,最佳截断值为0.71,灵敏度为96.67%,特异度为87.78%。中重度组血清miR-214水平较轻度组更低,NIHSS评分更高(P<0.05);ACI患者血清miR-214水平与NIHSS评分呈负相关性(r=-0.759,P<0.05)。预后不良组血清miR-214水平较预后良好组更低,mRS评分更高(P<0.05);ACI患者血清miR-214水平与mRS评分呈负相关性(r=-0.249,P<0.05)。ACI组血清白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、C反应蛋白(CRP)及中性粒细胞明胶酶相关脂质运载蛋白(NGAL)水平均高于对照组(P<0.05);ACI患者血清miR-214表达水平与血清IL-6、TNF-α、CRP及NGAL水平均呈负相关性(P<0.05)。结论ACI患者血清miR-214表达水平异常下降,对ACI具有较高诊断价值,且其与ACI病情严重程度、预后及炎症因子水平均呈负相关性,可能会影响疾病进展。
基金performed within the project ARCWIND-adaptation and implementation of floating wind energy conversion technology for the Atlantic region-which is co-financed by the European Regional Development Fund through the Interreg Atlantic Area Program under contract EAPA 344/2016
文摘The existing maintenance strategies of offshore wind energy are reviewed including the specific aspects of condition-based maintenance, focusing on three primary phases, namely, condition monitoring, fault diagnosis and prognosis, and maintenance optimization. Relevant academic research and industrial applications are identified and summarized. The state of art, capabilities,and constraints of condition-based maintenance are analyzed. The presented research demonstrates that the intelligent-based approach has become a promising solution for condition recognition, and an integrated data platform for offshore wind farms is significant to optimize the maintenance activities.
文摘BACKGROUND The prognosis of many patients with distant metastatic hepatocellular carcinoma(HCC)improved after they survived for several months.Compared with tradi-tional survival analysis,conditional survival(CS)which takes into account changes in survival risk could be used to describe dynamic survival probabilities.AIM To evaluate CS of distant metastatic HCC patients.METHODS Patients diagnosed with distant metastatic HCC between 2010 and 2015 were extracted from the Surveillance,Epidemiology and End Results database.Univariate and multivariate Cox regression analysis were used to identify factors for overall survival(OS),while competing risk model was used to identify risk factors for cancer-specific survival(CSS).Six-month CS was used to calculate the probability of survival for an additional 6 mo at a specific time after initial diagnosis,and standardized difference(d)was used to evaluate the survival differences between subgroups.Nomograms were constructed to predict CS.Positiveα-fetoprotein expression,higher T stage(T3 and T4),N1 stage,non-primary site surgery,non-chemotherapy,non-radiotherapy,and lung metastasis were independent risk factors for actual OS and CSS through univariate and multivariate analysis.Actual survival rates decreased over time,while CS rates gradually increased.As for the 6-month CS,the survival difference caused by chemotherapy and radiotherapy gradually disappeared over time,and the survival difference caused by lung metastasis reversed.Moreover,the influence of age and gender on survival gradually appeared.Nomograms were fitted for patients who have lived for 2,4 and 6 mo to predict 6-month conditional OS and CSS,respectively.The area under the curve(AUC)of nomograms for conditional OS decreased as time passed,and the AUC for conditional CSS gradually increased.CONCLUSION CS for distant metastatic HCC patients substantially increased over time.With dynamic risk factors,nomograms constructed at a specific time could predict more accurate survival rates.
