目的:比较腔内联合组织间插植治疗与三管式腔内后装治疗在宫颈癌后装近距离中的剂量学差异。方法:回顾性分析我院2017年2月至2017年12月后装治疗宫颈癌患者40例,FIGO分期为Ⅰb-Ⅳa期。其中20例患者采用核通Fletch三通道施源器进行三管...目的:比较腔内联合组织间插植治疗与三管式腔内后装治疗在宫颈癌后装近距离中的剂量学差异。方法:回顾性分析我院2017年2月至2017年12月后装治疗宫颈癌患者40例,FIGO分期为Ⅰb-Ⅳa期。其中20例患者采用核通Fletch三通道施源器进行三管式后装腔内治疗(ICBT),20例患者采用核通Fletch宫腔管联合4针插植进行治疗(IC/ISBT)。在靶区D 90尽量接近600 cGy条件下,评估单次后装治疗靶区适形指数(COIN)、均匀指数(HI)、膀胱及直肠的剂量学差异。结果:IC/ISBT组患者的高危CTV靶区COIN明显高于ICBT组(P=0.000),而HI指数两组患者并无差异(P=0.917)。IC/ISBT组患者膀胱D 1 cm 3和D 2 cm 3剂量明显低于ICBT组( P =0.015, P =0.023)。IC/ISBT组患者直肠D 1 cm 3 剂量明显低于ICBT组( P =0.040),D 2 cm 3 剂量也较ICBT组低( P =0.070),但差异无统计学意义。两组患者总治疗时间差异无统计学意义( P =0.500)。 结论: 腔内联合4针插植治疗较三管式腔内放疗可以显著提高COIN而不改变靶区高剂量区范围和总治疗时间,并降低危及器官膀胱、直肠的受量。展开更多
Ischemic stroke is a leading cause of death and disability worldwide.Inflammatory response after stroke determines the outcome of ischemic injury.A recent study has reported an efficient method,epidural arterial impla...Ischemic stroke is a leading cause of death and disability worldwide.Inflammatory response after stroke determines the outcome of ischemic injury.A recent study has reported an efficient method,epidural arterial implantation(EAI),for accelerating interstitial fluid(ISF)drainage,which provides a promising strategy to clear pro-inflammatory cytokines in the brain extracellular space(ECS).In this study,the method of EAI was modified(m-EAI)to control its function of accelerating the ISF drainage at different time points following ischemic attack.The neuroprotective effect of m-EAI on ischemic stroke was evaluated with the transient middle cerebral artery occlusion(tMCAO)rat model.The results demonstrated the accumulation of IL-1β,IL-6,and TNF-αwas significantly decreased by activating m-EAI at 7 d before and immediately after ischemic attack in tMCAO rats,accompanied with decreased infarct volume and improved neurological function.This study consolidates the hypothesis of exacerbated ischemic damage by inflammatory response and provides a new perspective to treat encephalopathy via brain ECS.Further research is essential to investigate whether m-EAI combined with neuroprotective drugs could enhance the therapeutic effect on ischemic stroke.展开更多
Continuous blood glucose monitoring is important for the diagnosis,treatment,and study of diabetes. many organizations have been working on this subject in recent two decades. Glucose concentration in interstitial flu...Continuous blood glucose monitoring is important for the diagnosis,treatment,and study of diabetes. many organizations have been working on this subject in recent two decades. Glucose concentration in interstitial fluid is closely related to the blood glucose levels. Minimally invasive continuous blood glucose monitoring technology based on the glucose detection in interstitial fluid develops rapidly and gets more and more attentions from the patients and the doctors,due to its instantaneous real-time display of glucose level,"24/7"coverage,and the ability to characterize glycemic variability. According to the different detection methods,most of the continuous glucose monitoring technology could be divided into two kinds: subcutaneous implantation method and transdermal extraction method. This paper review s the recent development of minimally invasive blood glucose monitoring technology and instruments. The mainly remained challenges and related research directions are presented as well.展开更多
Fe-10 at.%Cr alloy was implanted with hydrogen ions at room temperature, followed by annealing at high temperatures.The annealing process made the defects develop into large dislocation loops. The nature of the disloc...Fe-10 at.%Cr alloy was implanted with hydrogen ions at room temperature, followed by annealing at high temperatures.The annealing process made the defects develop into large dislocation loops. The nature of the dislocation loops formed after annealing was studied by the evolution of loops under in situ electron irradiation in high-voltage electron microscope.It indicated that only interstitial-type loops were observed when annealed at 550 °C and below, but vacancy-type loops started to form at the temperature higher than 600 °C. According to the previous study of our group, the presence of chromium element made the formation temperature of vacancy-type loops higher than that in pure iron. The effect of alloying elements on the formation temperature of the vacancy-type loops was discussed.展开更多
文摘目的:比较腔内联合组织间插植治疗与三管式腔内后装治疗在宫颈癌后装近距离中的剂量学差异。方法:回顾性分析我院2017年2月至2017年12月后装治疗宫颈癌患者40例,FIGO分期为Ⅰb-Ⅳa期。其中20例患者采用核通Fletch三通道施源器进行三管式后装腔内治疗(ICBT),20例患者采用核通Fletch宫腔管联合4针插植进行治疗(IC/ISBT)。在靶区D 90尽量接近600 cGy条件下,评估单次后装治疗靶区适形指数(COIN)、均匀指数(HI)、膀胱及直肠的剂量学差异。结果:IC/ISBT组患者的高危CTV靶区COIN明显高于ICBT组(P=0.000),而HI指数两组患者并无差异(P=0.917)。IC/ISBT组患者膀胱D 1 cm 3和D 2 cm 3剂量明显低于ICBT组( P =0.015, P =0.023)。IC/ISBT组患者直肠D 1 cm 3 剂量明显低于ICBT组( P =0.040),D 2 cm 3 剂量也较ICBT组低( P =0.070),但差异无统计学意义。两组患者总治疗时间差异无统计学意义( P =0.500)。 结论: 腔内联合4针插植治疗较三管式腔内放疗可以显著提高COIN而不改变靶区高剂量区范围和总治疗时间,并降低危及器官膀胱、直肠的受量。
基金supported by the Major Program of the National Natural Science Foundation of China(62394310,62394313,62394314)the National Natural Science Foundation of China(12126601)+5 种基金the R&D project of Pazhou Lab(Huangpu)(2023K0608)the China Postdoctoral Science Foundation(2022M720294)Intelligent Basic Theory Innovation Research fund(201CXCY-A01-08-00-29)GuangDong Basic and Applied Basic Research Foundation(2022A1515110674)Medical Scientific Research Foundation of Guangdong Province of China(B2022067)Science Foundation of AMHT(2021YK11)。
文摘Ischemic stroke is a leading cause of death and disability worldwide.Inflammatory response after stroke determines the outcome of ischemic injury.A recent study has reported an efficient method,epidural arterial implantation(EAI),for accelerating interstitial fluid(ISF)drainage,which provides a promising strategy to clear pro-inflammatory cytokines in the brain extracellular space(ECS).In this study,the method of EAI was modified(m-EAI)to control its function of accelerating the ISF drainage at different time points following ischemic attack.The neuroprotective effect of m-EAI on ischemic stroke was evaluated with the transient middle cerebral artery occlusion(tMCAO)rat model.The results demonstrated the accumulation of IL-1β,IL-6,and TNF-αwas significantly decreased by activating m-EAI at 7 d before and immediately after ischemic attack in tMCAO rats,accompanied with decreased infarct volume and improved neurological function.This study consolidates the hypothesis of exacerbated ischemic damage by inflammatory response and provides a new perspective to treat encephalopathy via brain ECS.Further research is essential to investigate whether m-EAI combined with neuroprotective drugs could enhance the therapeutic effect on ischemic stroke.
基金supported by the National Natural Science Foundation of China (No.61176107,No.11204210,No.61428402,and No.61201039)the Key Program of Tianjin Natural Science Foundation (No.15JCZDJC36100)+1 种基金the National High Technology Research and Development Program of China (No.2012AA022602)the 111 Project of China (No.B07014)
文摘Continuous blood glucose monitoring is important for the diagnosis,treatment,and study of diabetes. many organizations have been working on this subject in recent two decades. Glucose concentration in interstitial fluid is closely related to the blood glucose levels. Minimally invasive continuous blood glucose monitoring technology based on the glucose detection in interstitial fluid develops rapidly and gets more and more attentions from the patients and the doctors,due to its instantaneous real-time display of glucose level,"24/7"coverage,and the ability to characterize glycemic variability. According to the different detection methods,most of the continuous glucose monitoring technology could be divided into two kinds: subcutaneous implantation method and transdermal extraction method. This paper review s the recent development of minimally invasive blood glucose monitoring technology and instruments. The mainly remained challenges and related research directions are presented as well.
基金supported by the National Natural Science Foundation of China (Grant No. 51471026)
文摘Fe-10 at.%Cr alloy was implanted with hydrogen ions at room temperature, followed by annealing at high temperatures.The annealing process made the defects develop into large dislocation loops. The nature of the dislocation loops formed after annealing was studied by the evolution of loops under in situ electron irradiation in high-voltage electron microscope.It indicated that only interstitial-type loops were observed when annealed at 550 °C and below, but vacancy-type loops started to form at the temperature higher than 600 °C. According to the previous study of our group, the presence of chromium element made the formation temperature of vacancy-type loops higher than that in pure iron. The effect of alloying elements on the formation temperature of the vacancy-type loops was discussed.
