Vascular-targeted photodynamic therapy(V-PDT)is an effective treatment for port wine stains(PWS).However,repeated treatment is usually needed to achieve optimal treatment outcomes,possibly due to the limited treatment...Vascular-targeted photodynamic therapy(V-PDT)is an effective treatment for port wine stains(PWS).However,repeated treatment is usually needed to achieve optimal treatment outcomes,possibly due to the limited treatment light penetration depth in the PWS lesion.The optical clearing technique can increase light penetration in depth by reducing light scattering.This study aimed to investigate the V-PDT in combination with an optical clearing agent(OCA)for the therapeutic enhancement of V-PDT in the rodent skinfold window chamber model.Vascular responses were closely monitored with laser speckle contrast imaging(LSCI),optical coherence tomography angiography,and stereo microscope before,during,and after the treatment.We further quantitatively demonstrated the effects of V-PDT in combination with OCA on the blood flow and blood vessel size of skin microvasculature.The combination of OCA and V-PDT resulted in significant vascular damage,including vasoconstriction and the reduction of blood flow.Our results indicate the promising potential of OCA for enhancing V-PDT for treating vascular-related diseases,including PWS.展开更多
目的探讨髋关节周围皮纹不对称与发育性髋关节发育不良(developmental dysplasia of the hip,DDH)的关系。方法回顾性分析2017年1月至2022年12月在徐州医科大学附属徐州儿童医院进行DDH筛查的308名婴儿。根据筛查原因将其分为观察组(单...目的探讨髋关节周围皮纹不对称与发育性髋关节发育不良(developmental dysplasia of the hip,DDH)的关系。方法回顾性分析2017年1月至2022年12月在徐州医科大学附属徐州儿童医院进行DDH筛查的308名婴儿。根据筛查原因将其分为观察组(单纯皮纹不对称,n=116例)、临床异常组(具有髋关节弹响、髋关节外展受限、双下肢不等长等临床表现,n=92)和对照组(单纯行髋关节筛查,n=100)。分析临床评估结果及Graf法髋关节超声检查结果,比较各组病理性DDH的检出率,计算髋关节周围皮纹不对称诊断病理性DDH的阳性预测值、阴性预测值、敏感度、特异性。结果观察组检出病理性DDH 5例(4.31%);临床异常组检出病理性DDH 28例(30.43%);对照组检出病理性DDH 4例(4.00%)。观察组和对照组婴儿的病理性DDH检出率比较差异无统计学意义(χ^(2)=0.909,P=0.592);临床异常组婴儿的病理性DDH检出率显著高于对照组(χ^(2)=24.109,P<0.001)。单纯髋关节周围皮纹不对称对病理性DDH的阳性预测值为4.31%,阴性预测值为96.00%,敏感度为55.56%,特异性为46.38%。出现异常临床表现对病理性DDH的阳性预测值为30.43%,阴性预测值为96.00%,敏感度为87.50%,特异性为60.00%。结论单纯髋关节周围皮纹不对称诊断病理性DDH的价值较低,应更加重视是否存在其他临床体征,以指导婴儿的影像学筛查。展开更多
基金supported by the National Natural Science Foundation of China(Grant Numbers 62205025 and 61835015)Beijing Natural Science Foundation(7222309)+2 种基金the Open Project Program of Wuhan National Laboratory for Optoelectronics(2020WNLOKF025)CAMS Innovation Fund for Medical Sciences(CIFMS)(2019-I2M-5-061)Beijing Institute of Technology Research Fund Program for Young Scholars(XSQD-202123001).
文摘Vascular-targeted photodynamic therapy(V-PDT)is an effective treatment for port wine stains(PWS).However,repeated treatment is usually needed to achieve optimal treatment outcomes,possibly due to the limited treatment light penetration depth in the PWS lesion.The optical clearing technique can increase light penetration in depth by reducing light scattering.This study aimed to investigate the V-PDT in combination with an optical clearing agent(OCA)for the therapeutic enhancement of V-PDT in the rodent skinfold window chamber model.Vascular responses were closely monitored with laser speckle contrast imaging(LSCI),optical coherence tomography angiography,and stereo microscope before,during,and after the treatment.We further quantitatively demonstrated the effects of V-PDT in combination with OCA on the blood flow and blood vessel size of skin microvasculature.The combination of OCA and V-PDT resulted in significant vascular damage,including vasoconstriction and the reduction of blood flow.Our results indicate the promising potential of OCA for enhancing V-PDT for treating vascular-related diseases,including PWS.
文摘目的探讨髋关节周围皮纹不对称与发育性髋关节发育不良(developmental dysplasia of the hip,DDH)的关系。方法回顾性分析2017年1月至2022年12月在徐州医科大学附属徐州儿童医院进行DDH筛查的308名婴儿。根据筛查原因将其分为观察组(单纯皮纹不对称,n=116例)、临床异常组(具有髋关节弹响、髋关节外展受限、双下肢不等长等临床表现,n=92)和对照组(单纯行髋关节筛查,n=100)。分析临床评估结果及Graf法髋关节超声检查结果,比较各组病理性DDH的检出率,计算髋关节周围皮纹不对称诊断病理性DDH的阳性预测值、阴性预测值、敏感度、特异性。结果观察组检出病理性DDH 5例(4.31%);临床异常组检出病理性DDH 28例(30.43%);对照组检出病理性DDH 4例(4.00%)。观察组和对照组婴儿的病理性DDH检出率比较差异无统计学意义(χ^(2)=0.909,P=0.592);临床异常组婴儿的病理性DDH检出率显著高于对照组(χ^(2)=24.109,P<0.001)。单纯髋关节周围皮纹不对称对病理性DDH的阳性预测值为4.31%,阴性预测值为96.00%,敏感度为55.56%,特异性为46.38%。出现异常临床表现对病理性DDH的阳性预测值为30.43%,阴性预测值为96.00%,敏感度为87.50%,特异性为60.00%。结论单纯髋关节周围皮纹不对称诊断病理性DDH的价值较低,应更加重视是否存在其他临床体征,以指导婴儿的影像学筛查。
