Here, we administered repeated-pulse transcranial magnetic stimulation to healthy people at the left Guangming （GB37） and a mock point, and calculated the sample entropy of electroencephalo- gram signals using nonli...Here, we administered repeated-pulse transcranial magnetic stimulation to healthy people at the left Guangming （GB37） and a mock point, and calculated the sample entropy of electroencephalo- gram signals using nonlinear dynamics. Additionally, we compared electroencephalogram sample entropy of signals in response to visual stimulation before, during, and after repeated-pulse tran- scranial magnetic stimulation at the Guangming. Results showed that electroencephalogram sample entropy at left （F3） and right （FP2） frontal electrodes were significantly different depending on where the magnetic stimulation was administered. Additionally, compared with the mock point, electroencephalogram sample entropy was higher after stimulating the Guangming point. When visual stimulation at Guangming was given before repeated-pulse transcranial magnetic stimula- tion, significant differences in sample entropy were found at five electrodes （C3, Cz, C4, P3, T8） in parietal cortex, the central gyrus, and the right temporal region compared with when it was given after repeated-pulse transcranial magnetic stimulation, indicating that repeated-pulse transcranial magnetic stimulation at Guangming can affect visual function. Analysis of electroencephalogram revealed that when visual stimulation preceded repeated pulse transcranial magnetic stimulation, sample entropy values were higher at the C3, C4, and P3 electrodes and lower at the Cz and T8 electrodes than visual stimulation followed preceded repeated pulse transcranial magnetic stimula- tion. The findings indicate that repeated-pulse transcranial magnetic stimulation at the Guangming evokes different patterns of electroencephalogram signals than repeated-pulse transcranial mag- netic stimulation at other nearby points on the body surface, and that repeated-pulse transcranial magnetic stimulation at the Guangrning is associated with changes in the complexity of visually evoked electroencephalogram signals in parietal regions, central gyrus, and temporal regions.展开更多
目的:本研究旨在探讨NT联合NIPT、早期唐氏筛查及四维超声检查在胎儿染色体疾病筛查中的临床应用价值,评估不同检测方法单独及联合使用时的检出率和诊断效能,为优化胎儿染色体异常的早期筛查策略提供依据。方法:回顾性分析2018年1月至2...目的:本研究旨在探讨NT联合NIPT、早期唐氏筛查及四维超声检查在胎儿染色体疾病筛查中的临床应用价值,评估不同检测方法单独及联合使用时的检出率和诊断效能,为优化胎儿染色体异常的早期筛查策略提供依据。方法:回顾性分析2018年1月至2024年10月于青海红十字医院行产前诊断的532例孕妇的临床数据,所有病例均行NT、NIPT、早期唐氏筛查、四维超声检查及羊水穿刺。分别计算各检测方法单独及联合筛查的阳性检出率、灵敏度、特异度、阳性预测值、阴性预测值及准确率,同时对多种检测联合方案的诊断效能进行ROC曲线分析。结果:两组孕妇的年龄、孕周、孕前BMI、居住地与文化程度均无统计学差异(P > 0.05)。单独检测中,相比NT、早期唐氏筛查及四维超声检查,NIPT具有较高的阳性检出率、灵敏度、特异度、阳性预测值、阴性预测值、准确率及AUC (P Objective: The aim of this study was to investigate the clinical application value of NT combined with NIPT, early Down’s screening, and four-dimensional ultrasonography in the screening of fetal chromosomal disorders, to assess the detection rate and diagnostic efficacy of different testing methods when used individually and in combination, and to provide a basis for optimising the early screening strategy for fetal chromosomal abnormalities. Methods: Clinical data of 532 pregnant women who underwent prenatal diagnosis in Qinghai Red Cross Hospital from January 2018 to October 2024 were retrospectively analysed, and all cases underwent NT, NIPT, early Down’s syndrome screening, four-dimensional ultrasonography, and amniocentesis. The positive detection rate, sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of each test alone and in combination were calculated, and the diagnostic efficacy of the combination of multiple tests was analysed by ROC curve. Results: There were no statistically significant differences in age, gestational week, pre-pregnancy BMI, place of residence, and education between the two groups (P > 0.05). Among individual tests, compared with NT, early Down’s screening, and 4D ultrasound, NIPT alone had a higher positive detection rate, sensitivity, specificity, positive predictive value, negative predictive value, accuracy, and AUC (P < 0.05). Compared to individual screening, NT combined with early Down syndrome screening, and NT combined with four dimensional ultrasound examination, NT combined with NIPT had higher sensitivity, specificity, positive predictive value, negative predictive value, accuracy, and AUC (P < 0.05). Conclusion: NT combined with NIPT, early Down’s syndrome screening, and four-dimensional ultrasound can significantly improve the detection rate and diagnostic accuracy of individual screening, especially the combined NT + NIPT program has high clinical value in the screening of fetal chromosomal abnormalities, which provides a scientific basis for optimizing the screening strategy for high-risk pregnant women.展开更多
目的探讨血清Clara细胞分泌蛋白16(Clara cell secretory protein 16,CC-16)、肺表面活性蛋白A(pulmonary surfactant protein A,SP-A)及氨基末端脑钠肽前体(N-terminal pro-B type natriuretic peptide,NT-proBNP)、白细胞介素17(inter...目的探讨血清Clara细胞分泌蛋白16(Clara cell secretory protein 16,CC-16)、肺表面活性蛋白A(pulmonary surfactant protein A,SP-A)及氨基末端脑钠肽前体(N-terminal pro-B type natriuretic peptide,NT-proBNP)、白细胞介素17(interleukin-17,IL-17)在新生儿呼吸窘迫综合征(neonatal respiratory distress syndrome,NRDS)中的表达及意义。方法将2021年1月—2023年2月湖北省汉川市人民医院收治的NRDS患儿98例纳为NRDS组,其中轻度38例,中度33例,重度27例,另将同时期在我院出生的健康新生儿50例纳为健康组。比较2组CC-16、SP-A、NT-proBNP、IL-17水平;通过受试者工作特征曲线分析CC-16、SP-A、NT-proBNP、IL-17单独及各项联合评估NRDS的价值。比较不同病情严重程度NRDS患儿基线资料与CC-16、SP-A、NT-proBNP、IL-17水平;通过Spearman秩相关分析检验CC-16、SP-A、NT-proBNP、IL-17水平与NRDS病情严重程度的相关性。结果NRDS组CC-16、SP-A、NT-proBNP、IL-17水平[(60.21±3.85)mg/L、(74.96±6.35)mg/L、(5063.44±992.65)ng/L、(99.75±30.42)ng/L]明显高于健康组[(12.09±1.27)mg/L、(17.88±2.76)mg/L、(1872.49±502.51)ng/L、(58.82±15.73)ng/L],差异有统计学意义(P<0.05)。ROC曲线分析结果显示,CC-16、SP-A、NT-proBNP、IL-17评估NRDS的曲线下面积为0.845、0.870、0.846、0.885,各项联合评估NRDS的曲线下面积为0.927,敏感度为0.980。轻度组CC-16、SP-A、NT-proBNP、IL-17水平[(37.69±10.52)mg/L、(46.85±7.36)mg/L、(3472.57±295.14)ng/L、(39.86±12.45)ng/L]低于中度组[(52.37±16.24)mg/L、(72.81±8.06)mg/L、(4886.29±334.72)ng/L、(101.49±32.13)ng/L]和重度组[(85.13±14.44)mg/L、(97.23±12.37)mg/L、(6379.36±362.47)ng/L、(146.52±35.08)ng/L],中度组CC-16、SP-A、NT-proBNP、IL-17水平低于重度组,差异有统计学意义(P<0.05)。CC-16、SP-A、NT-proBNP、IL-17与NRDS病情严重程度之间呈正相关关系(r=0.549、0.574、0.607、0.563,均P<0.05)。结论CC-16、SP-A、NT-proBNP、IL-17在NRDS中表达水平升高,均可用于NRDS诊断,且联合诊断敏感度更高,以上指标与NRDS病情严重程度呈正相关关系。展开更多
基金supported by the National Natural Science Foundation of China,No.31100711,51377045,31300818the Natural Science Foundation of Hebei Province,No.H2013202176
文摘Here, we administered repeated-pulse transcranial magnetic stimulation to healthy people at the left Guangming （GB37） and a mock point, and calculated the sample entropy of electroencephalo- gram signals using nonlinear dynamics. Additionally, we compared electroencephalogram sample entropy of signals in response to visual stimulation before, during, and after repeated-pulse tran- scranial magnetic stimulation at the Guangming. Results showed that electroencephalogram sample entropy at left （F3） and right （FP2） frontal electrodes were significantly different depending on where the magnetic stimulation was administered. Additionally, compared with the mock point, electroencephalogram sample entropy was higher after stimulating the Guangming point. When visual stimulation at Guangming was given before repeated-pulse transcranial magnetic stimula- tion, significant differences in sample entropy were found at five electrodes （C3, Cz, C4, P3, T8） in parietal cortex, the central gyrus, and the right temporal region compared with when it was given after repeated-pulse transcranial magnetic stimulation, indicating that repeated-pulse transcranial magnetic stimulation at Guangming can affect visual function. Analysis of electroencephalogram revealed that when visual stimulation preceded repeated pulse transcranial magnetic stimulation, sample entropy values were higher at the C3, C4, and P3 electrodes and lower at the Cz and T8 electrodes than visual stimulation followed preceded repeated pulse transcranial magnetic stimula- tion. The findings indicate that repeated-pulse transcranial magnetic stimulation at the Guangming evokes different patterns of electroencephalogram signals than repeated-pulse transcranial mag- netic stimulation at other nearby points on the body surface, and that repeated-pulse transcranial magnetic stimulation at the Guangrning is associated with changes in the complexity of visually evoked electroencephalogram signals in parietal regions, central gyrus, and temporal regions.
文摘目的:本研究旨在探讨NT联合NIPT、早期唐氏筛查及四维超声检查在胎儿染色体疾病筛查中的临床应用价值,评估不同检测方法单独及联合使用时的检出率和诊断效能,为优化胎儿染色体异常的早期筛查策略提供依据。方法:回顾性分析2018年1月至2024年10月于青海红十字医院行产前诊断的532例孕妇的临床数据,所有病例均行NT、NIPT、早期唐氏筛查、四维超声检查及羊水穿刺。分别计算各检测方法单独及联合筛查的阳性检出率、灵敏度、特异度、阳性预测值、阴性预测值及准确率,同时对多种检测联合方案的诊断效能进行ROC曲线分析。结果:两组孕妇的年龄、孕周、孕前BMI、居住地与文化程度均无统计学差异(P > 0.05)。单独检测中,相比NT、早期唐氏筛查及四维超声检查,NIPT具有较高的阳性检出率、灵敏度、特异度、阳性预测值、阴性预测值、准确率及AUC (P Objective: The aim of this study was to investigate the clinical application value of NT combined with NIPT, early Down’s screening, and four-dimensional ultrasonography in the screening of fetal chromosomal disorders, to assess the detection rate and diagnostic efficacy of different testing methods when used individually and in combination, and to provide a basis for optimising the early screening strategy for fetal chromosomal abnormalities. Methods: Clinical data of 532 pregnant women who underwent prenatal diagnosis in Qinghai Red Cross Hospital from January 2018 to October 2024 were retrospectively analysed, and all cases underwent NT, NIPT, early Down’s syndrome screening, four-dimensional ultrasonography, and amniocentesis. The positive detection rate, sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of each test alone and in combination were calculated, and the diagnostic efficacy of the combination of multiple tests was analysed by ROC curve. Results: There were no statistically significant differences in age, gestational week, pre-pregnancy BMI, place of residence, and education between the two groups (P > 0.05). Among individual tests, compared with NT, early Down’s screening, and 4D ultrasound, NIPT alone had a higher positive detection rate, sensitivity, specificity, positive predictive value, negative predictive value, accuracy, and AUC (P < 0.05). Compared to individual screening, NT combined with early Down syndrome screening, and NT combined with four dimensional ultrasound examination, NT combined with NIPT had higher sensitivity, specificity, positive predictive value, negative predictive value, accuracy, and AUC (P < 0.05). Conclusion: NT combined with NIPT, early Down’s syndrome screening, and four-dimensional ultrasound can significantly improve the detection rate and diagnostic accuracy of individual screening, especially the combined NT + NIPT program has high clinical value in the screening of fetal chromosomal abnormalities, which provides a scientific basis for optimizing the screening strategy for high-risk pregnant women.
文摘目的探讨血清Clara细胞分泌蛋白16(Clara cell secretory protein 16,CC-16)、肺表面活性蛋白A(pulmonary surfactant protein A,SP-A)及氨基末端脑钠肽前体(N-terminal pro-B type natriuretic peptide,NT-proBNP)、白细胞介素17(interleukin-17,IL-17)在新生儿呼吸窘迫综合征(neonatal respiratory distress syndrome,NRDS)中的表达及意义。方法将2021年1月—2023年2月湖北省汉川市人民医院收治的NRDS患儿98例纳为NRDS组,其中轻度38例,中度33例,重度27例,另将同时期在我院出生的健康新生儿50例纳为健康组。比较2组CC-16、SP-A、NT-proBNP、IL-17水平;通过受试者工作特征曲线分析CC-16、SP-A、NT-proBNP、IL-17单独及各项联合评估NRDS的价值。比较不同病情严重程度NRDS患儿基线资料与CC-16、SP-A、NT-proBNP、IL-17水平;通过Spearman秩相关分析检验CC-16、SP-A、NT-proBNP、IL-17水平与NRDS病情严重程度的相关性。结果NRDS组CC-16、SP-A、NT-proBNP、IL-17水平[(60.21±3.85)mg/L、(74.96±6.35)mg/L、(5063.44±992.65)ng/L、(99.75±30.42)ng/L]明显高于健康组[(12.09±1.27)mg/L、(17.88±2.76)mg/L、(1872.49±502.51)ng/L、(58.82±15.73)ng/L],差异有统计学意义(P<0.05)。ROC曲线分析结果显示,CC-16、SP-A、NT-proBNP、IL-17评估NRDS的曲线下面积为0.845、0.870、0.846、0.885,各项联合评估NRDS的曲线下面积为0.927,敏感度为0.980。轻度组CC-16、SP-A、NT-proBNP、IL-17水平[(37.69±10.52)mg/L、(46.85±7.36)mg/L、(3472.57±295.14)ng/L、(39.86±12.45)ng/L]低于中度组[(52.37±16.24)mg/L、(72.81±8.06)mg/L、(4886.29±334.72)ng/L、(101.49±32.13)ng/L]和重度组[(85.13±14.44)mg/L、(97.23±12.37)mg/L、(6379.36±362.47)ng/L、(146.52±35.08)ng/L],中度组CC-16、SP-A、NT-proBNP、IL-17水平低于重度组,差异有统计学意义(P<0.05)。CC-16、SP-A、NT-proBNP、IL-17与NRDS病情严重程度之间呈正相关关系(r=0.549、0.574、0.607、0.563,均P<0.05)。结论CC-16、SP-A、NT-proBNP、IL-17在NRDS中表达水平升高,均可用于NRDS诊断,且联合诊断敏感度更高,以上指标与NRDS病情严重程度呈正相关关系。
