Background:The lens zonule,a circumferential system of fibres connecting the ciliary body to the lens,is responsible for centration of the lens.The structural,functional,and positional abnormalities of the zonular app...Background:The lens zonule,a circumferential system of fibres connecting the ciliary body to the lens,is responsible for centration of the lens.The structural,functional,and positional abnormalities of the zonular apparatus can lead to the abnormality of the intraocular structure,presenting a significant challenge to cataract surgery.Main text:The lens zonule is the elaborate system of extracellular fibers,which not only centers the lens in the eye but also plays an important role in accommodation and lens immunity,maintains the shape of the lens,and corrects spherical aberration.The zonules may directly participate in the formation of cataract via the immune mechanism.Abnormal zonular fibers that affect the position and shape of the lens may play an important role in the pathogenesis of angle closure disease and increase the complexity of the surgery.Capsular tension rings and related endocapsular devices are used to provide sufficient capsular bag stabilization and ensure the safety of cataract surgery procedures.Better preoperative and intraoperative evaluation methods for zonules are needed for clinicians.Conclusions:The microstructure,biomechanical properties,and physiological functions of the lens zonules help us to better understand the pathogenesis of cataract and glaucoma,facilitating the development of safer surgical procedures for cataract.Further studies are needed to carefully analyze the structure–function relationship of the zonular apparatus to explore new treatment strategies for cataract and glaucoma.展开更多
目的探讨血清闭锁小带蛋白1(ZO-1)、抗β2糖蛋白1抗体(aβ2-GP1)水平与脑梗死患者梗死病灶范围及颈动脉粥样硬化程度的相关性。方法选取2020年1月至2023年1月于保定市第一中心医院进行治疗的脑梗死患者103例作为研究组,另选取同期该院...目的探讨血清闭锁小带蛋白1(ZO-1)、抗β2糖蛋白1抗体(aβ2-GP1)水平与脑梗死患者梗死病灶范围及颈动脉粥样硬化程度的相关性。方法选取2020年1月至2023年1月于保定市第一中心医院进行治疗的脑梗死患者103例作为研究组,另选取同期该院的体检健康者51例作为对照组。依据梗死病灶范围将脑梗死患者分为大梗死组(梗死病灶>50 cm 2),中梗死组(梗死病灶在10~50 cm 2),小梗死组(梗死病灶<10 cm 2)。依据颈动脉彩超结果将脑梗死患者分为斑块期组、增厚期组、管壁正常组。采用酶联免疫吸附试验检测血清ZO-1、aβ2-GP1水平,并比较各组ZO-1、aβ2-GP1水平变化;采用Spearman相关分析脑梗死患者血清ZO-1、aβ2-GP1水平与梗死病灶范围及颈动脉粥样硬化程度的相关性。结果研究组血清ZO-1水平低于对照组,血清aβ2-GP1水平高于对照组(P<0.05)。在103例脑梗死患者中,大梗死组有32例,中梗死组有34例,小梗死组有37例,其中小梗死组ZO-1水平高于中梗死组和大梗死组,aβ2-GP1水平低于中梗死组和大梗死组(P<0.05);中梗死组ZO-1水平高于大梗死组,aβ2-GP1水平低于大梗死组(P<0.05)。在103例脑梗死患者中,斑块期组有29例,增厚期组有38例,管壁正常组有36例,其中斑块期组血清ZO-1水平低于增厚期组和管壁正常组,aβ2-GP1水平高于增厚期组和管壁正常组(P<0.05);增厚期组血清ZO-1水平低于管壁正常组,aβ2-GP1水平高于管壁正常组(P<0.05)。Spearman相关分析发现,脑梗死患者血清ZO-1水平与颈动脉粥样硬化程度和梗死病灶范围呈负相关(P<0.05),aβ2-GP1水平与颈动脉粥样硬化程度和梗死病灶范围呈正相关(P<0.05)。结论脑梗死患者血清ZO-1和aβ2-GP1水平与颈动脉粥样硬化程度和梗死病灶范围有着明显的相关性,在脑梗死患者的病情诊断、治疗和预后中具有潜在价值。展开更多
文摘Background:The lens zonule,a circumferential system of fibres connecting the ciliary body to the lens,is responsible for centration of the lens.The structural,functional,and positional abnormalities of the zonular apparatus can lead to the abnormality of the intraocular structure,presenting a significant challenge to cataract surgery.Main text:The lens zonule is the elaborate system of extracellular fibers,which not only centers the lens in the eye but also plays an important role in accommodation and lens immunity,maintains the shape of the lens,and corrects spherical aberration.The zonules may directly participate in the formation of cataract via the immune mechanism.Abnormal zonular fibers that affect the position and shape of the lens may play an important role in the pathogenesis of angle closure disease and increase the complexity of the surgery.Capsular tension rings and related endocapsular devices are used to provide sufficient capsular bag stabilization and ensure the safety of cataract surgery procedures.Better preoperative and intraoperative evaluation methods for zonules are needed for clinicians.Conclusions:The microstructure,biomechanical properties,and physiological functions of the lens zonules help us to better understand the pathogenesis of cataract and glaucoma,facilitating the development of safer surgical procedures for cataract.Further studies are needed to carefully analyze the structure–function relationship of the zonular apparatus to explore new treatment strategies for cataract and glaucoma.
文摘目的探讨血清闭锁小带蛋白1(ZO-1)、抗β2糖蛋白1抗体(aβ2-GP1)水平与脑梗死患者梗死病灶范围及颈动脉粥样硬化程度的相关性。方法选取2020年1月至2023年1月于保定市第一中心医院进行治疗的脑梗死患者103例作为研究组,另选取同期该院的体检健康者51例作为对照组。依据梗死病灶范围将脑梗死患者分为大梗死组(梗死病灶>50 cm 2),中梗死组(梗死病灶在10~50 cm 2),小梗死组(梗死病灶<10 cm 2)。依据颈动脉彩超结果将脑梗死患者分为斑块期组、增厚期组、管壁正常组。采用酶联免疫吸附试验检测血清ZO-1、aβ2-GP1水平,并比较各组ZO-1、aβ2-GP1水平变化;采用Spearman相关分析脑梗死患者血清ZO-1、aβ2-GP1水平与梗死病灶范围及颈动脉粥样硬化程度的相关性。结果研究组血清ZO-1水平低于对照组,血清aβ2-GP1水平高于对照组(P<0.05)。在103例脑梗死患者中,大梗死组有32例,中梗死组有34例,小梗死组有37例,其中小梗死组ZO-1水平高于中梗死组和大梗死组,aβ2-GP1水平低于中梗死组和大梗死组(P<0.05);中梗死组ZO-1水平高于大梗死组,aβ2-GP1水平低于大梗死组(P<0.05)。在103例脑梗死患者中,斑块期组有29例,增厚期组有38例,管壁正常组有36例,其中斑块期组血清ZO-1水平低于增厚期组和管壁正常组,aβ2-GP1水平高于增厚期组和管壁正常组(P<0.05);增厚期组血清ZO-1水平低于管壁正常组,aβ2-GP1水平高于管壁正常组(P<0.05)。Spearman相关分析发现,脑梗死患者血清ZO-1水平与颈动脉粥样硬化程度和梗死病灶范围呈负相关(P<0.05),aβ2-GP1水平与颈动脉粥样硬化程度和梗死病灶范围呈正相关(P<0.05)。结论脑梗死患者血清ZO-1和aβ2-GP1水平与颈动脉粥样硬化程度和梗死病灶范围有着明显的相关性,在脑梗死患者的病情诊断、治疗和预后中具有潜在价值。
