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Chronic Kidney Disease Induces Cognitive Impairment in the Early Stage

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Current Medical Science 2023年第5期43卷 988-997页

作者： yu wang Kai CHEN Zi-xuan QIAO Xiao-rong BAO Department of Nephrology Jinshan HospitalFudan UniversityShanghai 201508China

Objective Previous research indicates a link between cognitive impairment and chronic kidney disease(CKD),but the underlying factors are not fully *** study aimed to investigate the progression of CKD-induced cognitive impairment and the involvement of cognition-related proteins by developing early-and late-stage CKD models in Sprague-Dawley *** The morris water maze test and the step-down passive avoidance task were performed to evaluate the cognitive abilities of the rats at 24 weeks after *** examinations were conducted to examine renal and hippocampal ***-time PCR,Western blotting analysis,and immunohistochemical staining were carried out to determine the hippocampal expression of brain-derived neurotrophic factor(BDNF),choline acetyltransferase(ChAT),and synaptophysin(SyP).Results Compared with the control rats,the rats with early-stage CKD exhibited mild renal damage,while those with late-stage CKD showed significantly increased serum creatinine levels as well as apparent renal and brain *** rats with early-stage CKD also demonstrated significantly impaired learning abilities and memory compared with the control rats,with further deterioration observed in the rats with late-stage ***,we observed a significant downregulation of cognition-related proteins in the hippocampus of rats with early-stage CKD,which was further exacerbated with declining renal function as well as worsening brain and renal damage in rats with late-stage *** These results suggest the importance of early screening to identify CKD-induced cognitive dysfunction *** addition,the downregulation of cognition-related proteins may play a role in the progression of cognitive dysfunction.

关键词： chronic kidney disease cognitive impairment morris water maze test brain-derived neurotrophic factor choline acetyltransferase synaptophysin

Concise review on the safety of exercise on symptoms of lymphedema

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World Journal of Clinical Oncology 2015年第4期6卷 43-44页

作者： Casie morris Karen y Wonders Department of Exercise Science Sinclair Community College Maple Tree Cancer Alliance Dayton OH 45404 United States Department of Kinesiology and Health Wright State University

Lymphedema is an atypical accumulation of high-proteinfluid located just beneath the skin, which often occurs in the arm or leg. Exercising with lymphedema was traditionally considered to be unsafe. However, recent research indicates that exercise may be beneficial to individuals with lymphedema. Studies indicate that exercise can improve the range of motion and strength of the afflicted limb(s), as well as overall fitness and functional quality of life, and can be performed without exacerbating symptoms of lymphedema.

关键词： Quality of life Lymphedema Exercise Breast cancer

不同方式建立伴认知障碍的耐药性癫痫模型大鼠的对比研究

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中华神经医学杂志 2024年第3期23卷 217-224页

作者：李如月任勉勉黎辰伍国锋孙萍王丽琨贵州医科大学临床医学院急诊科贵阳550004 贵州医科大学附属医院急诊科贵阳550004 贵阳市第二人民医院神经内科贵阳550081

目的探讨通过腹腔注射氯化锂-匹罗卡品后颅内注射匹罗卡品、卡巴胆碱两种方式建立的伴认知障碍的耐药性癫痫模型大鼠在行为学、脑电图和认知功能方面的差异。方法成年雄性SD大鼠160只,按随机数字表法选择10只作为正常对照组,50只腹腔注... 详细信息

目的探讨通过腹腔注射氯化锂-匹罗卡品后颅内注射匹罗卡品、卡巴胆碱两种方式建立的伴认知障碍的耐药性癫痫模型大鼠在行为学、脑电图和认知功能方面的差异。方法成年雄性SD大鼠160只,按随机数字表法选择10只作为正常对照组,50只腹腔注射氯化锂和匹罗卡品制备癫痫模型(氯化锂-匹罗卡品组),剩余100只腹腔注射氯化锂和匹罗卡品后按随机数字表法分为2组,每组50只,分别颅内注射匹罗卡品和卡巴胆碱制备癫痫模型(匹罗卡品-匹罗卡品组、匹罗卡品-卡巴胆碱组)。使用视频监控系统观察大鼠自发性癫痫发作(SRSs)次数及发作持续时间,2周后腹腔注射苯巴比妥和苯妥英钠进行耐药性筛选。采用BL-420生物信号采集处理系统记录各组大鼠脑电图波幅及癫痫波的频率。采用新事物识别实验检测大鼠对新事物的探索,采用y迷宫自由探索实验和新异臂实验检测大鼠的空间识别记忆能力,采用morris水迷宫实验检测大鼠的空间记忆能力。结果(1)氯化锂-匹罗卡品组大鼠存活24只(48.00%),匹罗卡品-匹罗卡品组存活25只(78.00%),匹罗卡品-卡巴胆碱组存活21只(65.62%),最终分别筛选出耐药癫痫模型大鼠7、9、8只。视频监测显示匹罗卡品-匹罗卡品组和匹罗卡品-卡巴胆碱组大鼠SRSs发作次数、发作持续时间均高于氯化锂-匹罗卡品组,差异均有统计学意义(P<0.05)。(2)匹罗卡品-匹罗卡品组、匹罗卡品-卡巴胆碱组大鼠脑电图波幅均高于氯化锂-匹罗卡品组,氯化锂-匹罗卡品组、匹罗卡品-匹罗卡品组、匹罗卡品-卡巴胆碱组大鼠脑电图癫痫波出现频率逐渐增高,差异均有统计学意义(P<0.05)。(3)正常对照组、氯化锂-匹罗卡品组、匹罗卡品-匹罗卡品组、匹罗卡品-卡巴胆碱组大鼠的鉴别指数、正确率、新异臂移动距离/总移动距离、新异臂停留时间均逐渐降低,差异均有统计学意义(P<0.05)。与正常对照组比较,匹罗卡品-匹罗卡品组、匹罗卡品-卡巴胆碱组大鼠穿越原平台区域次数较少,差异均有统计学意义(P<0.05)。与正常对照组、氯化锂-匹罗卡品组、匹罗卡品-匹罗卡品组比较,匹罗卡品-卡巴胆碱组大鼠目标象限活动距离较短,差异均有统计学意义(P<0.05)。正常对照组、氯化锂-匹罗卡品组、匹罗卡品-匹罗卡品组、匹罗卡品-卡巴胆碱组大鼠进入目标象限次数逐渐减少,差异均有统计学意义(P<0.05)。结论通过腹腔注射氯化锂和匹罗卡品后颅内注射卡巴胆碱建立的耐药性癫痫模型大鼠存活率高,SRSs发作率高,认知功能损伤程度更重,更适合用于伴认知障碍的耐药性癫痫相关机制的研究。

关键词：耐药性癫痫认知功能匹罗卡品卡巴胆碱行为学脑电图

Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging

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Light(Science & Applications) 2023年第11期12卷 2363-2377页

作者： yihan Jin Nathan P.Spiller Chao He Grahame Faulkner Martin J.Booth Steve J.Elston Stephen M.morris Department of Engineering Science University of OxfordParks RoadOxford OX13PJUK

Lasers possess many attractive features(e.g.,high brightness,narrow linewidth,well-defined polarization)that make them the ideal illumination source for many different scientific and technological endeavors relating to imaging and the display of high-resolution ***,their high-level of coherence can result in the formation of noise,referred to as speckle,that can corrupt and degrade ***,we demonstrate a new electro-optic technology for combatting laser speckle using a chiral nematic liquid crystal(LC)dispersed with zwitterionic *** are presented that demonstrate when driven at the optimum electric field conditions,the speckle noise can be reduced by>90%resulting in speckle contrast(C)values of C=0.07,which is approaching that required to be imperceptible to the human *** LC technology is then showcased in an array of different display and imaging applications,including a demonstration of speckle reduction in modern vectorial laser-based imaging.

关键词： polarization speckle crystal

正五聚蛋白-3对5×FAD小鼠的记忆改善作用及Aβ表达的影响

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中华神经医学杂志 2024年第4期23卷 325-332页

作者：周绮谢峥赖敏霖邢芃芃王昭董耀远练昌林刘伯杨郭洪波南方医科大学第二临床医学院广州510282 南方医科大学南方医院神经内科广州510515 广州市执信中学广州510080 南方医科大学珠江医院神经外科中心国家临床重点专科脑血管病诊断与治疗教育部工程研究中心广东省普通高校脑功能修复与再生重点实验室广东神经外科研究所广州510282 佛山市第一人民医院神经内科佛山528000

目的探讨正五聚蛋白-3(PTX3)对阿尔茨海默病(AD)模型小鼠的记忆改善作用及β-淀粉样蛋白(Aβ)浓度的影响。方法(1)5月龄5×FAD小鼠10只,按随机数字表法分为模型组和PTX3干预组,每组5只,另取C57BL/6野生型小鼠5只作为正常对照组。PTX3干... 详细信息

目的探讨正五聚蛋白-3(PTX3)对阿尔茨海默病(AD)模型小鼠的记忆改善作用及β-淀粉样蛋白(Aβ)浓度的影响。方法(1)5月龄5×FAD小鼠10只,按随机数字表法分为模型组和PTX3干预组,每组5只,另取C57BL/6野生型小鼠5只作为正常对照组。PTX3干预组小鼠立体定位注射0.5 g/L PTX3溶液4μL,模型组和正常对照组小鼠注射等量PBS。采用y迷宫实验检测3组小鼠的短期记忆力,采用morris水迷宫实验检测3组小鼠的学习记忆能力,采用ELISA实验检测3组小鼠大脑半球Aβ_(40)和Aβ_(42)的浓度。(2)3月龄5×FAD小鼠25只,按随机数字表法分为模型组、2μg/kg PTX3干预组、4μg/kg PTX3干预组、8μg/kg PTX3干预组、16μg/kg PTX3干预组,每组5只,分别鼻腔内注射20μL PBS,2μg/kg、4μg/kg、8μg/kg、16μg/kg PTX3溶液,另取C57BL/6野生型小鼠5只作为正常对照组,鼻腔内注射等量PBS,每96小时给药1次,共给药7次。采用y迷宫实验检测6组小鼠的短期记忆力,采用morris水迷宫实验检测6组小鼠的学习记忆能力,采用ELISA实验检测6组小鼠海马Aβ_(40)和Aβ_(42)的浓度。结果(1)与模型组比较,PTX3干预组小鼠的逃避潜伏期较短、平台象限时间百分比较高,自主交替百分比较高,差异有统计学意义(P<0.05)。与模型组[(63.38±21.42)pg/mL、(29.77±6.11)pg/mL]比较,PTX3干预组小鼠大脑半球中Aβ_(40)和Aβ_(42)浓度[(15.87±2.11)pg/mL、(16.55±1.95)pg/mL]较低,差异均有统计学意义(P<0.05)。(2)与模型组比较,16μg/kg PTX3干预组小鼠的逃避潜伏期较短、平台象限时间百分比较高,差异均有统计学意义(P<0.05)。与模型组比较,2μg/kg PTX3干预组和16μg/kg PTX3干预组小鼠的自主交替百分比较高,差异均有统计学意义(P<0.05)。与模型组比较,8μg/kg、16μg/kg PTX3干预组小鼠海马中Aβ_(40)、Aβ_(42)浓度较低,差异均有统计学意义(P<0.05)。结论PTX3对5×FAD小鼠的记忆有明显改善作用,且能有效降低小鼠脑内Aβ的浓度。

关键词：阿尔茨海默病正五聚蛋白-3 β-淀粉样蛋白记忆力

甘草酸苷联合艾司氯胺酮对小鼠围手术期神经认知障碍的影响及其机制

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山西医科大学学报 2024年第1期55卷 76-84页

作者：王彬杨建新李月吉郝斌孟治寿山西医科大学麻醉学教研室太原030001 山西医科大学第二医院疼痛科

目的探讨甘草酸苷联合艾司氯胺酮通过调节海马区高迁移率族蛋白B1(HMGB1)信号通路对小鼠围手术期神经认知障碍(PND)的影响及相关机制。方法将小鼠分为空白组、PND组、甘草酸苷组、艾司氯胺酮组、甘草酸苷+艾司氯胺酮组,每组24只。本实... 详细信息

目的探讨甘草酸苷联合艾司氯胺酮通过调节海马区高迁移率族蛋白B1(HMGB1)信号通路对小鼠围手术期神经认知障碍(PND)的影响及相关机制。方法将小鼠分为空白组、PND组、甘草酸苷组、艾司氯胺酮组、甘草酸苷+艾司氯胺酮组,每组24只。本实验通过morris水迷宫评估小鼠空间学习记忆能力,各组小鼠分别于术前1 d,术后1,3,7 d行定位航行实验记录逃避潜伏期,术后第7天行空间探索实验记录目标象限穿梭次数。ELISA法检测术前1 d,术后1,3,7 d各组小鼠海马区白细胞介素-1β(IL-1β)、肿瘤坏死因子-α(TNF-α)、HMGB1、Toll样受体4(TLR-4)、核因子κB(NF-κB)表达含量。免疫荧光实验检测空白组、PND组、甘草酸苷+艾司氯胺酮组术后第1天小鼠海马区HMGB1表达情况。结果各组术前1 d各指标比较差异无统计学意义(P>0.05)。morris水迷宫结果显示:与空白组相比,其他组术后同时点逃避潜伏期均延长(P<0.05),术后第7天穿越平台次数均减少(P<0.05);与PND组相比,甘草酸苷组、艾司氯胺酮组和甘草酸苷+艾司氯胺酮组术后同时点逃避潜伏期缩短(P<0.05),术后第7天穿越平台次数增多(P<0.05);与甘草酸苷组和艾司氯胺酮组相比,甘草酸苷+艾司氯胺酮组术后同时点逃避潜伏期缩短(P<0.05),术后第7天穿越平台次数增多(P<0.05)。ELISA结果显示:与空白组相比,其余组术后同时点海马区IL-1β、TNF-α、HMGB1、TLR-4、NF-κB表达含量均明显升高(P<0.05);与PND组相比,甘草酸苷组、艾司氯胺酮组和甘草酸苷+艾司氯胺酮组术后同时点海马区IL-1β、TNF-α、HMGB1、TLR-4、NF-κB表达含量明显降低(P<0.05);与甘草酸苷组和艾司氯胺酮组相比,甘草酸苷+艾司氯胺酮组术后同时点海马区IL-1β、TNF-α、HMGB1、TLR-4、NF-κB表达含量明显降低(P<0.05)。免疫荧光结果显示:与空白组相比,PND组小鼠术后第1天海马CA1区及DG区HMGB1表达明显增多,且在海马CA1区及DG区均检测到HMGB1在细胞质中表达;与PND组相比,甘草酸苷+艾司氯胺酮组术后第1天小鼠海马CA1区及DG区HMGB1表达明显减少。结论甘草酸苷联合亚麻醉剂量艾司氯胺酮可改善小鼠围手术期神经认知功能及海马神经炎症,其机制可能与抑制HMGB1/TLR4/NF-κB信号通路相关。

关键词：甘草酸苷艾司氯胺酮神经认知障碍高迁移率族蛋白质类 Toll样受体4