目的探讨彩色多普勒超声联合血清神经元特异性烯醇化酶(neuron-specific enolase,NSE)及5 min Apgar评分对新生儿颅内出血(intracranial hemorrhage,ICH)的诊断价值及影响ICH发生的危险因素。方法选取2019年2月至2021年3月承德市中心医...目的探讨彩色多普勒超声联合血清神经元特异性烯醇化酶(neuron-specific enolase,NSE)及5 min Apgar评分对新生儿颅内出血(intracranial hemorrhage,ICH)的诊断价值及影响ICH发生的危险因素。方法选取2019年2月至2021年3月承德市中心医院新生儿科收治的存在颅脑损伤危险因素的253例新生儿为研究对象,均接受彩色多普勒超声检查,根据是否存在ICH分为ICH组(n=99)和无ICH组(n=154)。观察并比较两组彩色多普勒超声参数[收缩期峰值流速(peak systolicvelocity,PSV)、阻力指数(resistance index,RI)、舒张末期流速(end diastolic velocity,EDV)]、血清NSE水平、5 min Apgar评分情况,分析血清NSE水平、Apgar评分与彩色多普勒超声参数的相关性及三者联合检测对新生儿ICH的诊断价值,并分析ICH发生的主要影响因素。统计学方法采用独立样本t检验、χ^(2)检验、Pearson相关性分析、Logistic回归分析及受试者操作特征(receiver operating characteristic,ROC)曲线分析。结果ICH组与无ICH组PSV[(6.4±1.2)cm/s与(10.1±1.4)cm/s,t=21.628]、RI(0.6±0.1与0.7±0.1,t=8.144)、EDV[(2.5±0.4)cm/s与(3.1±0.4)cm/s,t=13.216]以及5 min Apgar评分[(6.5±1.7)分与(8.8±1.0)分,t=13.308]比较,ICH组均显著低于无ICH组(P值均<0.001);血清NSE水平显著高于无ICH组[(149.1±10.6)μg/L与(95.2±10.4)μg/L,t=40.015,P<0.001]。ICH组血清NSE水平与彩色多普勒超声参数PSV、RI、EDV呈负相关(r值分为-0.573、-0.520、-0.536,P值均<0.05);5 min Apgar评分与彩色多普勒超声参数PSV、RI、EDV呈正相关(r值分别为0.601、0.529、0.505,P值均<0.05)。ROC曲线结果发现,彩色多普勒超声、血清NSE水平、5 min Apgar评分联合诊断新生儿ICH的曲线下面积(area under the curve,AUC)最大,为0.861。单因素分析显示,与无ICH组比较,ICH组患儿的胎龄更小,出生体质量、5 min Apgar评分更低,出生窒息、应用多巴胺、应用机械通气比例及血清NSE水平更高,差异有统计学意义(P值均<0.05)。多因素Logistic回归分析结果显示,胎龄<32周、出生体质量<1500 g、血清NSE水平>117.95μg/L、5 min Apgar评分<7分是诱发ICH的独立危险因素。结论彩色多普勒超声联合血清NSE及5 min Apgar评分可提高ICH的诊断价值;胎龄<32周、出生体质量<1500 g、血清NSE水平>117.95μg/L、5 min Apgar评分<7分是诱发ICH的独立危险因素。展开更多
目的探讨两型5-α还原酶表达情况与前列腺癌Gleason分级、血清前列腺特异性抗原(prostate specific antigen,PSA)浓度、TNM分期的相关性。方法选取2013至2014年间首都医科大学附属北京朝阳医院病理科前列腺癌的石蜡包埋组织40例,并收集...目的探讨两型5-α还原酶表达情况与前列腺癌Gleason分级、血清前列腺特异性抗原(prostate specific antigen,PSA)浓度、TNM分期的相关性。方法选取2013至2014年间首都医科大学附属北京朝阳医院病理科前列腺癌的石蜡包埋组织40例,并收集患者基本信息、前列腺体积,术前PSA浓度,术后病理TNM分期,Gleason分级等。采用χ2检验和Spearman相关分析对2种5-α还原酶表达与病理分期、Gleason分级、PSA浓度及年龄等参数的关系进行分析。结果Ⅰ型5-α还原酶在前列腺癌组织中的表达明显高于癌旁组织(P<0.001),相反Ⅱ型5-α还原酶在癌旁组织的表达强于癌组织(P=0.002),Ⅰ型5-α还原酶在癌细胞中的表达与肿瘤的恶性程度呈正相关,Gleason分级越高,病理分期越高,Ⅰ型5-α还原酶的表达越强;Ⅰ型5-α还原酶表达和血PSA浓度及年龄呈正相关。结论 5-α还原酶在前列腺癌组织中呈现差异性表达的特点,前列腺癌组织内I型酶升高,II型酶降低;I型酶的表达与年龄、PSA浓度、病理分期及Gleason分级呈正相关,在老年人群前列腺癌的发生发展中可能具有重要的作用,I型酶对判断前列腺癌的生物学行为及预后可能具有一定意义。展开更多
Objective The neuroprotective function of heat shock protein A5(HSPA5)in ischemic stroke has been confirmed.This study aimed to investigate the effects of early aerobic exercise on neurological function recovery from ...Objective The neuroprotective function of heat shock protein A5(HSPA5)in ischemic stroke has been confirmed.This study aimed to investigate the effects of early aerobic exercise on neurological function recovery from cerebral ischemia/reperfusion and to determine whether these effects are associated with the expression level of HSPA5 in the ischemic penumbra.Methods A total of 72 male Sprague-Dawley rats were randomly assigned to the ischemia and exercise group[middle cerebral artery occlusion(MCAO)-Ex,n=18],ischemia and sedentary group(MCAO-St,n=18),sham-surgery and exercise group(Sham-Ex,n=18),or sham-surgery and sedentary group(Sham-St,n=18).The MCAO-Ex and MCAO-St groups were subjected to MCAO for 60 min,whereas the Sham-Ex and Sham-St groups were subjected to an identical operation without MCAO.Rats in the MCAO-Ex and Sham-Ex groups then ran on a treadmill for 30 min once a day for 5 consecutive days.After reperfusion,the motor function of the rats was scored by the Bederson neurological function test,balance beam test,and screen test.Nissl staining was conducted to assess morphological and structural change of nerve cells in the ischemic penumbra.The reverse transcription-quantitative polymerase chain reaction was applied to detect the mRNA expression of HSPA5.Western blot analysis was conducted to determine the protein expression of HSPA5.Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling(TUNEL)staining was carried out in the ischemic penumbra after MCAO.Results Rats receiving early treadmill exercise had lower Bederson neurological function,balance beam,and screen test scores on the 3rd,7th,and 14th days after MCAO;in addition,more neurons survived in the ischemic penumbra after MCAO,and higher mRNA and protein expression of HSPA5 and fewer TUNEL-positive stained cells were observed.Conclusion Our study demonstrated that early aerobic exercise can improve neurological function recovery after ischemia/reperfusion.Furthermore,the increased level of HSPA5 in the ischemic penumbra might be one of the mechanisms of enhanced neurological function recovery.展开更多
文摘目的探讨彩色多普勒超声联合血清神经元特异性烯醇化酶(neuron-specific enolase,NSE)及5 min Apgar评分对新生儿颅内出血(intracranial hemorrhage,ICH)的诊断价值及影响ICH发生的危险因素。方法选取2019年2月至2021年3月承德市中心医院新生儿科收治的存在颅脑损伤危险因素的253例新生儿为研究对象,均接受彩色多普勒超声检查,根据是否存在ICH分为ICH组(n=99)和无ICH组(n=154)。观察并比较两组彩色多普勒超声参数[收缩期峰值流速(peak systolicvelocity,PSV)、阻力指数(resistance index,RI)、舒张末期流速(end diastolic velocity,EDV)]、血清NSE水平、5 min Apgar评分情况,分析血清NSE水平、Apgar评分与彩色多普勒超声参数的相关性及三者联合检测对新生儿ICH的诊断价值,并分析ICH发生的主要影响因素。统计学方法采用独立样本t检验、χ^(2)检验、Pearson相关性分析、Logistic回归分析及受试者操作特征(receiver operating characteristic,ROC)曲线分析。结果ICH组与无ICH组PSV[(6.4±1.2)cm/s与(10.1±1.4)cm/s,t=21.628]、RI(0.6±0.1与0.7±0.1,t=8.144)、EDV[(2.5±0.4)cm/s与(3.1±0.4)cm/s,t=13.216]以及5 min Apgar评分[(6.5±1.7)分与(8.8±1.0)分,t=13.308]比较,ICH组均显著低于无ICH组(P值均<0.001);血清NSE水平显著高于无ICH组[(149.1±10.6)μg/L与(95.2±10.4)μg/L,t=40.015,P<0.001]。ICH组血清NSE水平与彩色多普勒超声参数PSV、RI、EDV呈负相关(r值分为-0.573、-0.520、-0.536,P值均<0.05);5 min Apgar评分与彩色多普勒超声参数PSV、RI、EDV呈正相关(r值分别为0.601、0.529、0.505,P值均<0.05)。ROC曲线结果发现,彩色多普勒超声、血清NSE水平、5 min Apgar评分联合诊断新生儿ICH的曲线下面积(area under the curve,AUC)最大,为0.861。单因素分析显示,与无ICH组比较,ICH组患儿的胎龄更小,出生体质量、5 min Apgar评分更低,出生窒息、应用多巴胺、应用机械通气比例及血清NSE水平更高,差异有统计学意义(P值均<0.05)。多因素Logistic回归分析结果显示,胎龄<32周、出生体质量<1500 g、血清NSE水平>117.95μg/L、5 min Apgar评分<7分是诱发ICH的独立危险因素。结论彩色多普勒超声联合血清NSE及5 min Apgar评分可提高ICH的诊断价值;胎龄<32周、出生体质量<1500 g、血清NSE水平>117.95μg/L、5 min Apgar评分<7分是诱发ICH的独立危险因素。
文摘目的探讨两型5-α还原酶表达情况与前列腺癌Gleason分级、血清前列腺特异性抗原(prostate specific antigen,PSA)浓度、TNM分期的相关性。方法选取2013至2014年间首都医科大学附属北京朝阳医院病理科前列腺癌的石蜡包埋组织40例,并收集患者基本信息、前列腺体积,术前PSA浓度,术后病理TNM分期,Gleason分级等。采用χ2检验和Spearman相关分析对2种5-α还原酶表达与病理分期、Gleason分级、PSA浓度及年龄等参数的关系进行分析。结果Ⅰ型5-α还原酶在前列腺癌组织中的表达明显高于癌旁组织(P<0.001),相反Ⅱ型5-α还原酶在癌旁组织的表达强于癌组织(P=0.002),Ⅰ型5-α还原酶在癌细胞中的表达与肿瘤的恶性程度呈正相关,Gleason分级越高,病理分期越高,Ⅰ型5-α还原酶的表达越强;Ⅰ型5-α还原酶表达和血PSA浓度及年龄呈正相关。结论 5-α还原酶在前列腺癌组织中呈现差异性表达的特点,前列腺癌组织内I型酶升高,II型酶降低;I型酶的表达与年龄、PSA浓度、病理分期及Gleason分级呈正相关,在老年人群前列腺癌的发生发展中可能具有重要的作用,I型酶对判断前列腺癌的生物学行为及预后可能具有一定意义。
基金This study was funded by Basic Research Projects in Shanxi Province(No.2015021178)Start-up Funds for Doctoral Research at Shanxi Datong University(No.2014-B-01).
文摘Objective The neuroprotective function of heat shock protein A5(HSPA5)in ischemic stroke has been confirmed.This study aimed to investigate the effects of early aerobic exercise on neurological function recovery from cerebral ischemia/reperfusion and to determine whether these effects are associated with the expression level of HSPA5 in the ischemic penumbra.Methods A total of 72 male Sprague-Dawley rats were randomly assigned to the ischemia and exercise group[middle cerebral artery occlusion(MCAO)-Ex,n=18],ischemia and sedentary group(MCAO-St,n=18),sham-surgery and exercise group(Sham-Ex,n=18),or sham-surgery and sedentary group(Sham-St,n=18).The MCAO-Ex and MCAO-St groups were subjected to MCAO for 60 min,whereas the Sham-Ex and Sham-St groups were subjected to an identical operation without MCAO.Rats in the MCAO-Ex and Sham-Ex groups then ran on a treadmill for 30 min once a day for 5 consecutive days.After reperfusion,the motor function of the rats was scored by the Bederson neurological function test,balance beam test,and screen test.Nissl staining was conducted to assess morphological and structural change of nerve cells in the ischemic penumbra.The reverse transcription-quantitative polymerase chain reaction was applied to detect the mRNA expression of HSPA5.Western blot analysis was conducted to determine the protein expression of HSPA5.Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling(TUNEL)staining was carried out in the ischemic penumbra after MCAO.Results Rats receiving early treadmill exercise had lower Bederson neurological function,balance beam,and screen test scores on the 3rd,7th,and 14th days after MCAO;in addition,more neurons survived in the ischemic penumbra after MCAO,and higher mRNA and protein expression of HSPA5 and fewer TUNEL-positive stained cells were observed.Conclusion Our study demonstrated that early aerobic exercise can improve neurological function recovery after ischemia/reperfusion.Furthermore,the increased level of HSPA5 in the ischemic penumbra might be one of the mechanisms of enhanced neurological function recovery.
文摘目的探讨5项改良衰弱指数(5-factor modified frailty index,mFI-5)联合年龄评分预测老年髋部骨折术后不良事件及功能恢复的临床价值。方法分析作者医院2019-01/2022-10月收治的年龄≥60岁行手术治疗的300例髋部骨折患者临床资料。依据患者术后1月内不良事件发生情况分为并发组(n=98)及未并发组(n=202);依据术后半年内是否发生死亡分为死亡组(n=42)及未死亡组(n=258),依据术后半年Harris评分将未死亡组患者分为不良组(n=102)及优良组(n=156);分析各组患者mFI-5评分及mFI-5联合年龄评分;采用受试者工作特征(receiver operating characteristic,ROC)曲线分析mFI-5联合年龄评分预测老年髋部骨折术后1月并发症、半年死亡及髋关节功能恢复的临床价值。结果并发组mFI-5评分及mFI-5联合年龄评分显著高于未并发组(P<0.05);死亡组mFI-5评分及mFI-5联合年龄评分显著高于未死亡组(P<0.05);不良组mFI-5评分及mFI-5联合年龄评分显著高于优良组(P<0.05)。mFI-5联合年龄评分对老年髋部骨折术后并发症、死亡发生及髋关节功能恢复的诊断灵敏度、特异度及曲线下面积(area under the curve,AUC)均较单一mFI-5诊断更高。结论mFI-5及mFI-5联合年龄评分均对老年髋部骨折术后不良事件及髋关节功能恢复具有一定的诊断价值,但mFI-5联合年龄评分的诊断特异度、灵敏度及准确性更高,值得临床广泛使用。
