The Ca 2+-binding protein of the EF-hand type,S100B,exerts both intracellular and extracellular regulatory activities.As an intracellular regulator,S100B is involved in the regulation of energy metabolism,transcriptio...The Ca 2+-binding protein of the EF-hand type,S100B,exerts both intracellular and extracellular regulatory activities.As an intracellular regulator,S100B is involved in the regulation of energy metabolism,transcription,protein phosphorylation,cell proliferation,survival,differentiation and motility,and Ca 2+ homeostasis,by interacting with a wide array of proteins(i.e.,enzymes,enzyme substrates,cytoskeletal subunits,scaffold/adaptor proteins,transcription factors,ubiquitin E3 ligases,ion channels) in a restricted number of cell types.As an extracellular signal,S100B engages the pattern recognition receptor,receptor for advanced glycation end-products(RAGE),on immune cells as well as on neuronal,astrocytic and microglial cells,vascular smooth muscle cells,skeletal myoblasts and cardiomyocytes.However,RAGE may not be the sole receptor activated by S100B,the protein being able to enhance bFGF-FGFR1 signaling by interacting with FGFR1-bound bFGF in particular cell types.Moreover,extracellular effects of S100B vary depending on its local concentration.Increasing evidence suggests that at the concentration found in extracellular fluids in normal physiological conditions and locally upon acute tissue injury,which is up to a few nM levels,S100B exerts trophic effects in the central and peripheral nervous system and in skeletal muscle tissue thus participating in tissue homeostasis.The present commentary summarizes results implicating intracellular and extracellular S100B in tissue development,repair and regeneration.展开更多
BACKGROUND:S100B protein in patients with cardiac arrest,hemorrhagic shock and other causes of global cerebral ischemic injury will be dramatically increased.Ischemic brain injury may elevate the level of serum S100 B...BACKGROUND:S100B protein in patients with cardiac arrest,hemorrhagic shock and other causes of global cerebral ischemic injury will be dramatically increased.Ischemic brain injury may elevate the level of serum S100 B protein and the severity of brain damage.METHODS:This article is a critical and descriptive review on S100 B protein in serum after ischemic brain injury.We searched Pubmed database with key words or terms such as "S100B protein", "cardiac arrest", "hemorrhagic shock" and "ischemia reperfusion injury" appeared in the last five years.RESULTS:S100B protein in patients with cardiac arrest,hemorrhagic shock and other causes of ischemic brain injury will be dramatically increased.Ischemic brain injury elevated the level of serum S100 B protein,and the severity of brain damage.CONCLUSION:The level of S100 B protein in serum is elevated after ischemic brain injury,but its mechanism is unclear.展开更多
Objective: To investigate the effects of Propofol combined with remifentanil on serum levels of MBP, NSE and S100B protein, D-D and inflammatory factors in patients with acute craniocerebral trauma. Methods: A total o...Objective: To investigate the effects of Propofol combined with remifentanil on serum levels of MBP, NSE and S100B protein, D-D and inflammatory factors in patients with acute craniocerebral trauma. Methods: A total of 100 patients were selected with traumatic brain injury who underwent emergency surgery from August 2014 to May 2017 in our hospital, then randomly divided them into the control group and the experimental group, 50 cases each. The control group received isoflurane combined with remifentanil to maintain anesthesia, and the experimental group received propofol and remifentanil to maintain anesthesia. The inflammatory factors and the levels of MBP, NSE, S100B and D-D in the two groups before and after anesthesia (T0), 1H (T1) and postoperative 1H (T2) were detected and compared. Results: There was no significant difference between the two groups in the levels of TNF-α. The serum level of hs-CRP in two groups of T1, T2 increased significantly, the difference was statistically significant compared with T0, in the experimental group, serum level of hs-CRP at T1 and T2 was significantly higher than the control group, the difference was statistically significant. Conclusion: Propofol combined with remifentanil anesthesia for acute craniocerebral trauma can maintain the balance of inflammatory cytokine levels during the perioperative period, inhibit the elevation of serum MBP, NSE, S100B protein and D-D levels, reduce brain cell damage. It has a good protective effect on brain cells and is worthy of clinical application.展开更多
Objective:To study the effect of salvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injection on serum BNP, Hcy, MMP-2, S100B protein and hemorheology in patients with acute...Objective:To study the effect of salvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injection on serum BNP, Hcy, MMP-2, S100B protein and hemorheology in patients with acute cerebral watershed infarction.Methods:A total of 90 patientswith acute cerebral watershed infarction in our hospital from August 2014 to December 2016 were enrolled in this study. The subjects were divided into the control group (n=45) and the treatment group (n=45) randomly. The control group was treated with hydroxyethyl starch injection, the treatment group was treated withsalvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injection, and both the two groups were treated for 2 weeks. The serum BNP, Hcy, MMP-2, S100B protein and hemorheology of the two groups before and after treatments were compared.Results:There were no significantly differences of the serum BNP, Hcy, MMP-2, S100B protein and hemorheology of the two groups before treatment. The serum BNP, Hcy, MMP-2, S100B proteinlevels of the two groups after treatment were significantly lower than before treatment, and that of the treatment group after treatment were significantly lower than the control group. The PV, Lr, Mr, Hr and RE of the two groups after treatment were significantly lower than before treatment, and that of the treatment group after treatment were significantly lower than the control group.Conclusion:Salvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injectioncan significantlyimprovetheneurological function and hemorheology, reduce inflammation of the patients with acute cerebral watershed infarction, and it was worthy clinical application.展开更多
目的:探究单纯疱疹病毒(HSV)感染后脑脊液(CSF)中S100B、Cys-C、MMP-9水平对自身免疫性脑炎(AE)的预测价值。方法:选取2016年1月至2021年3月河北中石油中心医院收治的200例HSV感染患者为研究对象,根据是否继发AE分为研究组(继发AE,35例...目的:探究单纯疱疹病毒(HSV)感染后脑脊液(CSF)中S100B、Cys-C、MMP-9水平对自身免疫性脑炎(AE)的预测价值。方法:选取2016年1月至2021年3月河北中石油中心医院收治的200例HSV感染患者为研究对象,根据是否继发AE分为研究组(继发AE,35例)和对照组(未继发AE,165例)。多因素Logistic回归分析HSV感染患者继发AE的独立影响因素。Spearman法分析脑脊液中Cys-C、MMP-9与S100B水平的相关性。受试者工作特征(ROC)曲线分析S100B、Cys-C、MMP-9对AE的预测价值。构建风险预测模型并进行评价。结果:多因素Logistic回归分析显示,MRI异常、脑脊液S100B、MMP-9升高、EEG异常是HSV感染患者继发AE的独立危险因素,脑脊液Cys-C是其保护因素(P<0.05)。Spearman分析显示,HSV感染患者Cys-C浓度与S100B水平呈负相关(r=-0.83,P<0.05),MMP-9浓度与S100B水平呈正相关(r=0.88,P<0.05)。构建的联合预测因子pre1诊断HSV患者继发AE的AUC明显大于S100B、Cys-C、MMP-9单独预测的AUC(0.876 vs 0.827、0.787、0.750)。构建的风险预测模型具有良好的区分度和一致性。结论:脑脊液中S100B、Cys-C、MMP-9水平均可对HSV感染患者诱发AE的可能性进行有效预测,且三项指标联合预测价值最大,其次是S100B蛋白、Cys-C、MMP-9。展开更多
目的基于脑肠轴理论探讨柴胡加龙骨牡蛎汤对癫痫患者胶质纤维酸性蛋白、神经肽Y及S100B的影响。方法纳入2018年1月—2020年1月癫痫患者114例作为观察对象,随机分为两组,对照组57例选用电子生物反馈技术;联合组57例选用柴胡加龙骨牡蛎汤...目的基于脑肠轴理论探讨柴胡加龙骨牡蛎汤对癫痫患者胶质纤维酸性蛋白、神经肽Y及S100B的影响。方法纳入2018年1月—2020年1月癫痫患者114例作为观察对象,随机分为两组,对照组57例选用电子生物反馈技术;联合组57例选用柴胡加龙骨牡蛎汤联合电子生物反馈技术,持续治疗3个月。比较临床疗效及癫痫生活质量评定量表(epilepsy quality of life scale-31,QOLIE-31)、不良反应,治疗前后测定血清胶质纤维酸性蛋白(glial fibrillary acidic protein,GFAP)、神经肽Y(neuropeptide Y,NPY)及S100B水平。结果对照组有效率82.46%(47/57)低于联合组94.74%(54/57),有统计学意义(P<0.05)。与治疗前比,两组治疗后血清GFAP、NPY及S100B水平均降低,而且联合组治疗后血清GFAP、NPY及S100B水平低于对照组,有统计学意义(P<0.05)。对照组综合质量、情绪、总体健康、药物影响、认知功能、社会功能、精力及对发作担忧评分低于联合组,有统计学意义(P<0.05)。两组患者不良反应率分析,无统计学意义(P>0.05)。结论柴胡加龙骨牡蛎汤有疏利肝胆,和解少阳之功,对癫痫患者的疗效显著,可以降低神经细胞因子,提高生活质量,值得推广。展开更多
目的探讨羊水污染与新生儿缺氧缺血性脑病(hypoxic-ischemic encephalopathy,HIE)以及血清Tau蛋白、Sl00B表达水平的相关性。方法将2018年8月至2022年8月邯郸市妇幼保健院新生儿科重症监护室(neonatal intensive care unit,NICU)收治的7...目的探讨羊水污染与新生儿缺氧缺血性脑病(hypoxic-ischemic encephalopathy,HIE)以及血清Tau蛋白、Sl00B表达水平的相关性。方法将2018年8月至2022年8月邯郸市妇幼保健院新生儿科重症监护室(neonatal intensive care unit,NICU)收治的75例中度和重度HIE患儿纳入HIE组(中度31例,重度44例),选择同期在产科出生的正常健康足月新生儿35例纳入对照组。根据羊水污染程度,将患儿分为羊水正常组以及Ⅰ度、Ⅱ度、Ⅲ度羊水污染组。比较各组羊水污染情况以及血清Tau蛋白、S100B表达水平。统计学方法采用t检验、Student-Newman-Keuls检验、χ^(2)检验或Fisher确切概率法。结果HIE组母亲自然阴道分娩的比例低于对照组[36.0%(27/75与57.1%(20/35)],HIE组新生儿5 min Apgar评分低于对照组[(3.5±1.4)与(8.5±1.0)分],差异均有统计学意义(P值均<0.05)。75例HIE患儿中,羊水正常20例(26.7%),Ⅰ度羊水污染13例(17.3%),Ⅱ度羊水污染10例(13.3%),Ⅲ度羊水污染32例(42.7%)。重度HIE患儿Ⅲ度羊水污染的比例高于中度HIE患儿,差异有统计学意义[59.1%(26/44)与19.4%(6/31),P<0.05]。中、重度HIE组患儿血清Tau蛋白、S100B水平明显高于对照组(P值均<0.05);重度HIE组患儿血清Tau蛋白、S100B水平明显高于中度HIE组,差异均有统计学意义(P值均<0.05)。羊水正常和Ⅰ度、Ⅱ度、Ⅲ度羊水污染组的HIE患儿血清Tau蛋白、S100B水平均明显高于对照组,差异均有统计学意义(P值均<0.05);Ⅲ度羊水污染HIE组患儿血清Tau蛋白、S100B水平明显高于羊水正常HIE组和Ⅰ度羊水污染HIE组患儿,差异均有统计学意义(P值均<0.05)。结论羊水污染与新生儿HIE有密切关系,重度HIE患儿中,Ⅲ度羊水污染的比例较高,血清Tau蛋白、S100B水平也较高,脑损伤程度较严重。展开更多
目的探究晚期糖基化终末产物(Receptor for Advanced Glycation End Products,RAGE)受体阻断剂对癫痫幼鼠脑电图、神经元损伤及S100B蛋白表达的影响。方法选取40只无特定病原体级SD雄性幼鼠,随机分为正常组(N组)、模型组(M组)、苯妥英钠...目的探究晚期糖基化终末产物(Receptor for Advanced Glycation End Products,RAGE)受体阻断剂对癫痫幼鼠脑电图、神经元损伤及S100B蛋白表达的影响。方法选取40只无特定病原体级SD雄性幼鼠,随机分为正常组(N组)、模型组(M组)、苯妥英钠组(P组)、RAGE受体阻断剂组(R组),每组10只。M组、P组、R组腹腔注射戊四氮建立癫痫模型,N组不建立该模型,建模成功后,对P组腹腔注射20 mg/kg苯妥英钠,对R组腹腔注射1 mg/kg RAGE受体阻断剂FPS-ZM,N组、M组同期腹腔注射同体积0.9%氯化钠溶液。观察各组幼鼠模型行为学,记录脑电图,采用FJB染色和尼氏染色检测神经元损伤情况,免疫酶标法检测S100B蛋白表达。结果与N组比较,M组、P组、R组幼鼠Racine评分、发作持续时间、发作次数明显升高(P<0.05);与M组比较,P组、R组幼鼠Racine评分、发作持续时间、发作次数明显降低(P<0.05);且与P组相比,R组上述指标显著降低(P<0.05)。与N组比较,M组、P组、R组幼鼠波幅明显升高(P<0.05);频率明显降低(P<0.05);与M组比较,P组、R组幼鼠波幅明显降低(P<0.05),频率明显升高(P<0.05);且与P组相比,R组上述指标变化显著(P<0.05)。与M组相比,P组、R组神经元损伤明显减轻,神经元数量有所增加,神经元形态有所改善,神经元细胞及尼氏小体数目明显增加。与N组比较,M组、P组、R组海马、中脑、额叶皮层S100B蛋白表达显著升高(P<0.05);与M组比较,P组、R组海马、中脑、额叶皮层S100B蛋白表达显著降低(P<0.05);且与P组相比,R组上述指标显著降低(P<0.05)。结论RAGE受体阻断剂可显著改善癫痫幼鼠脑电图和神经元损伤,并抑制S100B蛋白表达。展开更多
基金Supported by Ministero dell'Università e della Ricerca,No. PRIN 2007LNKSYS,No.2007AWZTHH_004 and No.2009WBFZYM_002Association Fran aise contre les Myopathies,No. Project 12992+1 种基金Associazione Italiana per la Ricerca sul Cancro,No. Project 6021Fondazione Cassa di Risparmio di Perugia,No. 2007.0218.020,No.2009.020.0021 and No.2012.0241.021
文摘The Ca 2+-binding protein of the EF-hand type,S100B,exerts both intracellular and extracellular regulatory activities.As an intracellular regulator,S100B is involved in the regulation of energy metabolism,transcription,protein phosphorylation,cell proliferation,survival,differentiation and motility,and Ca 2+ homeostasis,by interacting with a wide array of proteins(i.e.,enzymes,enzyme substrates,cytoskeletal subunits,scaffold/adaptor proteins,transcription factors,ubiquitin E3 ligases,ion channels) in a restricted number of cell types.As an extracellular signal,S100B engages the pattern recognition receptor,receptor for advanced glycation end-products(RAGE),on immune cells as well as on neuronal,astrocytic and microglial cells,vascular smooth muscle cells,skeletal myoblasts and cardiomyocytes.However,RAGE may not be the sole receptor activated by S100B,the protein being able to enhance bFGF-FGFR1 signaling by interacting with FGFR1-bound bFGF in particular cell types.Moreover,extracellular effects of S100B vary depending on its local concentration.Increasing evidence suggests that at the concentration found in extracellular fluids in normal physiological conditions and locally upon acute tissue injury,which is up to a few nM levels,S100B exerts trophic effects in the central and peripheral nervous system and in skeletal muscle tissue thus participating in tissue homeostasis.The present commentary summarizes results implicating intracellular and extracellular S100B in tissue development,repair and regeneration.
基金supported by a grant from 122 Project of Nanjing Military Command focusing on training(JQZD200905)
文摘BACKGROUND:S100B protein in patients with cardiac arrest,hemorrhagic shock and other causes of global cerebral ischemic injury will be dramatically increased.Ischemic brain injury may elevate the level of serum S100 B protein and the severity of brain damage.METHODS:This article is a critical and descriptive review on S100 B protein in serum after ischemic brain injury.We searched Pubmed database with key words or terms such as "S100B protein", "cardiac arrest", "hemorrhagic shock" and "ischemia reperfusion injury" appeared in the last five years.RESULTS:S100B protein in patients with cardiac arrest,hemorrhagic shock and other causes of ischemic brain injury will be dramatically increased.Ischemic brain injury elevated the level of serum S100 B protein,and the severity of brain damage.CONCLUSION:The level of S100 B protein in serum is elevated after ischemic brain injury,but its mechanism is unclear.
基金The Natural Science Foundation of Shaanxi Province(2016JQ2341).
文摘Objective: To investigate the effects of Propofol combined with remifentanil on serum levels of MBP, NSE and S100B protein, D-D and inflammatory factors in patients with acute craniocerebral trauma. Methods: A total of 100 patients were selected with traumatic brain injury who underwent emergency surgery from August 2014 to May 2017 in our hospital, then randomly divided them into the control group and the experimental group, 50 cases each. The control group received isoflurane combined with remifentanil to maintain anesthesia, and the experimental group received propofol and remifentanil to maintain anesthesia. The inflammatory factors and the levels of MBP, NSE, S100B and D-D in the two groups before and after anesthesia (T0), 1H (T1) and postoperative 1H (T2) were detected and compared. Results: There was no significant difference between the two groups in the levels of TNF-α. The serum level of hs-CRP in two groups of T1, T2 increased significantly, the difference was statistically significant compared with T0, in the experimental group, serum level of hs-CRP at T1 and T2 was significantly higher than the control group, the difference was statistically significant. Conclusion: Propofol combined with remifentanil anesthesia for acute craniocerebral trauma can maintain the balance of inflammatory cytokine levels during the perioperative period, inhibit the elevation of serum MBP, NSE, S100B protein and D-D levels, reduce brain cell damage. It has a good protective effect on brain cells and is worthy of clinical application.
基金Hubei Natural Science Foundation Project Plan 2015(2015-cEV129).
文摘Objective:To study the effect of salvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injection on serum BNP, Hcy, MMP-2, S100B protein and hemorheology in patients with acute cerebral watershed infarction.Methods:A total of 90 patientswith acute cerebral watershed infarction in our hospital from August 2014 to December 2016 were enrolled in this study. The subjects were divided into the control group (n=45) and the treatment group (n=45) randomly. The control group was treated with hydroxyethyl starch injection, the treatment group was treated withsalvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injection, and both the two groups were treated for 2 weeks. The serum BNP, Hcy, MMP-2, S100B protein and hemorheology of the two groups before and after treatments were compared.Results:There were no significantly differences of the serum BNP, Hcy, MMP-2, S100B protein and hemorheology of the two groups before treatment. The serum BNP, Hcy, MMP-2, S100B proteinlevels of the two groups after treatment were significantly lower than before treatment, and that of the treatment group after treatment were significantly lower than the control group. The PV, Lr, Mr, Hr and RE of the two groups after treatment were significantly lower than before treatment, and that of the treatment group after treatment were significantly lower than the control group.Conclusion:Salvia miltiorrhiza and ligustrazine hydrochloride injection combined with hydroxyethyl starch injectioncan significantlyimprovetheneurological function and hemorheology, reduce inflammation of the patients with acute cerebral watershed infarction, and it was worthy clinical application.
文摘目的:探究单纯疱疹病毒(HSV)感染后脑脊液(CSF)中S100B、Cys-C、MMP-9水平对自身免疫性脑炎(AE)的预测价值。方法:选取2016年1月至2021年3月河北中石油中心医院收治的200例HSV感染患者为研究对象,根据是否继发AE分为研究组(继发AE,35例)和对照组(未继发AE,165例)。多因素Logistic回归分析HSV感染患者继发AE的独立影响因素。Spearman法分析脑脊液中Cys-C、MMP-9与S100B水平的相关性。受试者工作特征(ROC)曲线分析S100B、Cys-C、MMP-9对AE的预测价值。构建风险预测模型并进行评价。结果:多因素Logistic回归分析显示,MRI异常、脑脊液S100B、MMP-9升高、EEG异常是HSV感染患者继发AE的独立危险因素,脑脊液Cys-C是其保护因素(P<0.05)。Spearman分析显示,HSV感染患者Cys-C浓度与S100B水平呈负相关(r=-0.83,P<0.05),MMP-9浓度与S100B水平呈正相关(r=0.88,P<0.05)。构建的联合预测因子pre1诊断HSV患者继发AE的AUC明显大于S100B、Cys-C、MMP-9单独预测的AUC(0.876 vs 0.827、0.787、0.750)。构建的风险预测模型具有良好的区分度和一致性。结论:脑脊液中S100B、Cys-C、MMP-9水平均可对HSV感染患者诱发AE的可能性进行有效预测,且三项指标联合预测价值最大,其次是S100B蛋白、Cys-C、MMP-9。
文摘目的基于脑肠轴理论探讨柴胡加龙骨牡蛎汤对癫痫患者胶质纤维酸性蛋白、神经肽Y及S100B的影响。方法纳入2018年1月—2020年1月癫痫患者114例作为观察对象,随机分为两组,对照组57例选用电子生物反馈技术;联合组57例选用柴胡加龙骨牡蛎汤联合电子生物反馈技术,持续治疗3个月。比较临床疗效及癫痫生活质量评定量表(epilepsy quality of life scale-31,QOLIE-31)、不良反应,治疗前后测定血清胶质纤维酸性蛋白(glial fibrillary acidic protein,GFAP)、神经肽Y(neuropeptide Y,NPY)及S100B水平。结果对照组有效率82.46%(47/57)低于联合组94.74%(54/57),有统计学意义(P<0.05)。与治疗前比,两组治疗后血清GFAP、NPY及S100B水平均降低,而且联合组治疗后血清GFAP、NPY及S100B水平低于对照组,有统计学意义(P<0.05)。对照组综合质量、情绪、总体健康、药物影响、认知功能、社会功能、精力及对发作担忧评分低于联合组,有统计学意义(P<0.05)。两组患者不良反应率分析,无统计学意义(P>0.05)。结论柴胡加龙骨牡蛎汤有疏利肝胆,和解少阳之功,对癫痫患者的疗效显著,可以降低神经细胞因子,提高生活质量,值得推广。
文摘目的探讨羊水污染与新生儿缺氧缺血性脑病(hypoxic-ischemic encephalopathy,HIE)以及血清Tau蛋白、Sl00B表达水平的相关性。方法将2018年8月至2022年8月邯郸市妇幼保健院新生儿科重症监护室(neonatal intensive care unit,NICU)收治的75例中度和重度HIE患儿纳入HIE组(中度31例,重度44例),选择同期在产科出生的正常健康足月新生儿35例纳入对照组。根据羊水污染程度,将患儿分为羊水正常组以及Ⅰ度、Ⅱ度、Ⅲ度羊水污染组。比较各组羊水污染情况以及血清Tau蛋白、S100B表达水平。统计学方法采用t检验、Student-Newman-Keuls检验、χ^(2)检验或Fisher确切概率法。结果HIE组母亲自然阴道分娩的比例低于对照组[36.0%(27/75与57.1%(20/35)],HIE组新生儿5 min Apgar评分低于对照组[(3.5±1.4)与(8.5±1.0)分],差异均有统计学意义(P值均<0.05)。75例HIE患儿中,羊水正常20例(26.7%),Ⅰ度羊水污染13例(17.3%),Ⅱ度羊水污染10例(13.3%),Ⅲ度羊水污染32例(42.7%)。重度HIE患儿Ⅲ度羊水污染的比例高于中度HIE患儿,差异有统计学意义[59.1%(26/44)与19.4%(6/31),P<0.05]。中、重度HIE组患儿血清Tau蛋白、S100B水平明显高于对照组(P值均<0.05);重度HIE组患儿血清Tau蛋白、S100B水平明显高于中度HIE组,差异均有统计学意义(P值均<0.05)。羊水正常和Ⅰ度、Ⅱ度、Ⅲ度羊水污染组的HIE患儿血清Tau蛋白、S100B水平均明显高于对照组,差异均有统计学意义(P值均<0.05);Ⅲ度羊水污染HIE组患儿血清Tau蛋白、S100B水平明显高于羊水正常HIE组和Ⅰ度羊水污染HIE组患儿,差异均有统计学意义(P值均<0.05)。结论羊水污染与新生儿HIE有密切关系,重度HIE患儿中,Ⅲ度羊水污染的比例较高,血清Tau蛋白、S100B水平也较高,脑损伤程度较严重。
文摘目的探究晚期糖基化终末产物(Receptor for Advanced Glycation End Products,RAGE)受体阻断剂对癫痫幼鼠脑电图、神经元损伤及S100B蛋白表达的影响。方法选取40只无特定病原体级SD雄性幼鼠,随机分为正常组(N组)、模型组(M组)、苯妥英钠组(P组)、RAGE受体阻断剂组(R组),每组10只。M组、P组、R组腹腔注射戊四氮建立癫痫模型,N组不建立该模型,建模成功后,对P组腹腔注射20 mg/kg苯妥英钠,对R组腹腔注射1 mg/kg RAGE受体阻断剂FPS-ZM,N组、M组同期腹腔注射同体积0.9%氯化钠溶液。观察各组幼鼠模型行为学,记录脑电图,采用FJB染色和尼氏染色检测神经元损伤情况,免疫酶标法检测S100B蛋白表达。结果与N组比较,M组、P组、R组幼鼠Racine评分、发作持续时间、发作次数明显升高(P<0.05);与M组比较,P组、R组幼鼠Racine评分、发作持续时间、发作次数明显降低(P<0.05);且与P组相比,R组上述指标显著降低(P<0.05)。与N组比较,M组、P组、R组幼鼠波幅明显升高(P<0.05);频率明显降低(P<0.05);与M组比较,P组、R组幼鼠波幅明显降低(P<0.05),频率明显升高(P<0.05);且与P组相比,R组上述指标变化显著(P<0.05)。与M组相比,P组、R组神经元损伤明显减轻,神经元数量有所增加,神经元形态有所改善,神经元细胞及尼氏小体数目明显增加。与N组比较,M组、P组、R组海马、中脑、额叶皮层S100B蛋白表达显著升高(P<0.05);与M组比较,P组、R组海马、中脑、额叶皮层S100B蛋白表达显著降低(P<0.05);且与P组相比,R组上述指标显著降低(P<0.05)。结论RAGE受体阻断剂可显著改善癫痫幼鼠脑电图和神经元损伤,并抑制S100B蛋白表达。
