The brain atlas,or parcellation-delineating spatial partitions,organizes the brain's structure and function[1].The spatial arrangements of highly heterogeneous landscapes represent specialized functional regions f...The brain atlas,or parcellation-delineating spatial partitions,organizes the brain's structure and function[1].The spatial arrangements of highly heterogeneous landscapes represent specialized functional regions for investigating their interactions.Early efforts to parcellate the mammalian brain,using histological cytoarchitecture and myeloarchitecture,as well as recent in vivo magnetic resonance imaging(MRl)[2,3],have primarily involved cortical areas,subcortical structures,and cerebellar nuclei.Human brain parcellations primarily focus on grey matter(GM),which purposefully excludes white matter(WM),hindering the development of next-generation brain atlases.展开更多
目的基于MyD88/NF-κB通路探讨芪黄健脾滋肾颗粒(QJZ)改善MRL/lpr小鼠肾损害的作用机制。方法6只雌性C57BL/6小鼠为正常对照组(Control组),将30只雌性MRL/lpr小鼠随机分为模型组(Model组)、芪黄健脾滋肾颗粒低剂量组(QJZ-L组)、芪黄健...目的基于MyD88/NF-κB通路探讨芪黄健脾滋肾颗粒(QJZ)改善MRL/lpr小鼠肾损害的作用机制。方法6只雌性C57BL/6小鼠为正常对照组(Control组),将30只雌性MRL/lpr小鼠随机分为模型组(Model组)、芪黄健脾滋肾颗粒低剂量组(QJZ-L组)、芪黄健脾滋肾颗粒中剂量组(QJZ-M组)、芪黄健脾滋肾颗粒高剂量组(QJZ-H组)、泼尼松组(Pred组),6只/组。干预8周后取各组小鼠的尿液、全血及肾脏组织,生化试剂盒检测肾损害指标:24 h尿蛋白定量(24 h PRO)、尿总蛋白肌酐比值(UTPCR)、尿蛋白肌酐比(UACR)。ELISA法检测血清中免疫球蛋白G(IgG)、补体3(C3)、补体4(C4)、抗双链DNA抗体(antidsDNA)、干扰素γ(IFN-γ)、白细胞介素17(IL-17)。肾脏组织进行HE染色和透射电镜观察肾小球超微结构。采用RT-qPCR、Western blotting和免疫组化法检测肾组织中MyD88/NF-κB通路相关分子的表达。结果与Model组相比,QJZ-L、QJZ-M、QJZ-H和Pred组24 h PRO、UTPCR、UACR、IgG、anti-dsDNA、IFN-γ、IL-17降低(P<0.01),C3、C4水平升高(P<0.01)。HE染色结果显示,与Model组比较,各组肾小球内皮细胞增生、系膜增厚减轻。透射电镜显示,各组肾小球电子致密物沉积、炎性细胞浸润较Model组减轻。RT-qPCR和免疫组化结果显示,与Model组相比,QJZ-L、QJZ-M、QJZ-H和Pred组肾脏中MyD88、NF-κB表达下降(P<0.05)。Western blotting结果显示,各组肾脏中p65、p52蛋白水平低于Model组(P<0.01)。结论芪黄健脾滋肾颗粒能够改善MRL/lpr小鼠肾损害,其机制可能与抑制MyD88/NF-κB通路过度激活有关。展开更多
基金supported by the National Natural Science Foundation of China(62473082,82202250,82121003,62036003,and 62333003)the Fundamental Research Funds for the Central Universities(ZYGX2022YGRH008 and ZYGX2024XJ054)the Medical-Engineering Cooperation Funds from the University of Electronic Science and Technology of China(ZYGX2021YGLH201).
文摘The brain atlas,or parcellation-delineating spatial partitions,organizes the brain's structure and function[1].The spatial arrangements of highly heterogeneous landscapes represent specialized functional regions for investigating their interactions.Early efforts to parcellate the mammalian brain,using histological cytoarchitecture and myeloarchitecture,as well as recent in vivo magnetic resonance imaging(MRl)[2,3],have primarily involved cortical areas,subcortical structures,and cerebellar nuclei.Human brain parcellations primarily focus on grey matter(GM),which purposefully excludes white matter(WM),hindering the development of next-generation brain atlases.
文摘目的基于MyD88/NF-κB通路探讨芪黄健脾滋肾颗粒(QJZ)改善MRL/lpr小鼠肾损害的作用机制。方法6只雌性C57BL/6小鼠为正常对照组(Control组),将30只雌性MRL/lpr小鼠随机分为模型组(Model组)、芪黄健脾滋肾颗粒低剂量组(QJZ-L组)、芪黄健脾滋肾颗粒中剂量组(QJZ-M组)、芪黄健脾滋肾颗粒高剂量组(QJZ-H组)、泼尼松组(Pred组),6只/组。干预8周后取各组小鼠的尿液、全血及肾脏组织,生化试剂盒检测肾损害指标:24 h尿蛋白定量(24 h PRO)、尿总蛋白肌酐比值(UTPCR)、尿蛋白肌酐比(UACR)。ELISA法检测血清中免疫球蛋白G(IgG)、补体3(C3)、补体4(C4)、抗双链DNA抗体(antidsDNA)、干扰素γ(IFN-γ)、白细胞介素17(IL-17)。肾脏组织进行HE染色和透射电镜观察肾小球超微结构。采用RT-qPCR、Western blotting和免疫组化法检测肾组织中MyD88/NF-κB通路相关分子的表达。结果与Model组相比,QJZ-L、QJZ-M、QJZ-H和Pred组24 h PRO、UTPCR、UACR、IgG、anti-dsDNA、IFN-γ、IL-17降低(P<0.01),C3、C4水平升高(P<0.01)。HE染色结果显示,与Model组比较,各组肾小球内皮细胞增生、系膜增厚减轻。透射电镜显示,各组肾小球电子致密物沉积、炎性细胞浸润较Model组减轻。RT-qPCR和免疫组化结果显示,与Model组相比,QJZ-L、QJZ-M、QJZ-H和Pred组肾脏中MyD88、NF-κB表达下降(P<0.05)。Western blotting结果显示,各组肾脏中p65、p52蛋白水平低于Model组(P<0.01)。结论芪黄健脾滋肾颗粒能够改善MRL/lpr小鼠肾损害,其机制可能与抑制MyD88/NF-κB通路过度激活有关。
