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Acupuncture effects on serum myelin basic protein and remyelination following 30 minutes and 2 hours of ischemia in a rat model of cerebral ischemia-reperfusion injury 被引量:2
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作者 Jiangang Duan Ming Liu 《Neural Regeneration Research》 SCIE CAS CSCD 2010年第4期261-266,共6页
BACKGROUND: Acupuncture treatment on injured cerebral axons has shown to provide efficacy in clinical practice. It is unknown whether acupuncture produces therapeutic effects by protecting injured cerebral myelin in ... BACKGROUND: Acupuncture treatment on injured cerebral axons has shown to provide efficacy in clinical practice. It is unknown whether acupuncture produces therapeutic effects by protecting injured cerebral myelin in ischemic stroke. OBJECTIVE: To test whether acupuncture provides protection for injured cerebral myelin, based on quantitative data from cerebral ischemia-reperfusion rats, and to compare the effects of early and late acupuncture on serum myelin basic protein (MBP) content and remyelination of the ischemic internal capsule.DESIGN, TIME AND SETTING: A randomized, controlled experiment was performed at the Neurobiological Laboratory, Sichuan University from March 2005 to March 2006. MATERIALS: "Hua Tuo" Brand filiform needles were produced by the Medical Instrument Factory of Suzhou, China.METHODS: A total of 52 adult, healthy, male, Sprague Dawley rats were randomly assigned to four groups: control (n = 4), model (n = 16), early acupuncture (n = 16), and late acupuncture (n = 16). The focal cerebral ischemia-reperfusion model was established by middle cerebral artery occlusion in the right hemisphere using the modified thread embolism method in the latter three groups. Early and late acupuncture groups underwent acupuncture after ischemia for 30 minutes and 2 hours using the Xingnaokaiqiao needling method, respectively. Acupoints were "Neiguarf' (PC 6) and "Sanyinjiao" (SP 6) on the bilateral sides, as well as "Shuigou' (DU 26) and "Baihui" (DU 20) with stimulation for 1 minute at each acupoint. Acupuncture at all acupoints was performed two or three times while the needle was retained, once per day. No special handling was administered to the control clroup.MAIN OUTCOME MEASURES: For each group, remyelination of the internal capsule was observed by Pal-Weigert's myelin staining and serum MBP content was detected using enzyme-linked immunosorbent assay method on days 1,3, 5, and 7 following ischemia-reperfusion injury.RESULTS: Compared with the control group, massive demyelination of the internal capsule occurred, and serum MBP content increased in the model group (P 〈 0.05). Compared with the model group, the extent of demyelination in the internal capsule was less distinct and serum MBP content was significantly less in the early and late acupuncture group (P 〈 0.01 ). Compared with the late acupuncture group, serum MBP content reached a peak later and the peak value was less in the early acupuncture group. CONCLUSION: Results suggest that acupuncture exerts a protective effect on injured cerebral myelin in ischemia-reperfusion rats by reducing serum MBP content and promoting remyelination. The study also suggests that the effect of early acupuncture is superior to late acupuncture. 展开更多
关键词 ACUPUNCTURE focal cerebral ischemia-reperfusion serum myelin basic protein REmyelinATION brain injury neural regeneration
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Neuron-specific Enclose and Myelin Basic Protein in Cerebrospinal Fluid of Patients with First Episode Schizophrenia 被引量:1
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作者 李淑英 吴汉荣 +1 位作者 郭慧荣 赵峥 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2006年第2期228-230,共3页
In order to study whether patients with schizophrenia have cerebral injury, neuron-specific enolase (NSE) and myelin basic protein (MBP)in cerebrospinal fluid (CSF) of 33 patients with first episode schizophreni... In order to study whether patients with schizophrenia have cerebral injury, neuron-specific enolase (NSE) and myelin basic protein (MBP)in cerebrospinal fluid (CSF) of 33 patients with first episode schizophrenia and 9 from the control group were determined by double antibody sandwich enzyme immunoassay method. The results showed that there was significant difference in the NSE contents between the experimental group and control group (P〈0.01). The NSE contents in CSF in the experimental group were positively correlated with MBP in schizophrenia patients (P〈 0.05). These findings suggested that patients with schizophrenia had cerebral injury. 展开更多
关键词 SCHIZOPHRENIA cerebrospinal fluid neuron specific enolase myelin basic protein
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Analysis of the induction of the myelin basic protein binding to the plasma membrane phospholipid monolayer 被引量:1
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作者 张蕾 郝长春 +4 位作者 冯盈 高峰 逯晓龙 李俊花 孙润广 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第9期56-62,共7页
Myelin basic protein(MBP) is an essential structure involved in the generation of central nervous system(CNS)myelin.Myelin shape has been described as liquid crystal structure of biological membrane.The interactio... Myelin basic protein(MBP) is an essential structure involved in the generation of central nervous system(CNS)myelin.Myelin shape has been described as liquid crystal structure of biological membrane.The interactions of MBP with monolayers of different lipid compositions are responsible for the multi-lamellar structure and stability of myelin.In this paper,we have designed MBP-incorporated model lipid monolayers and studied the phase behavior of MBP adsorbed on the plasma membrane at the air/water interface by thermodynamic method and atomic force microscopy(AFM).By analyzing the pressure–area(π–A) and pressure–time(π–T) isotherms,univariate linear regression equation was obtained.In addition,the elastic modulus,surface pressure increase,maximal insertion pressure,and synergy factor of monolayers were detected.These parameters can be used to modulate the monolayers binding of protein,and the results show that MBP has the strongest affinity for 1,2-dipalmitoyl-sn-glycero-3-phosphoserine(DPPS) monolayer,followed by DPPC/DPPS mixed and1,2-dipalmitoyl-sn-glycero-3-phospho-choline(DPPC) monolayers via electrostatic and hydrophobic interactions.AFM images of DPPS and DPPC/DPPS mixed monolayers in the presence of MBP(5 n M) show a phase separation texture at the surface pressure of 20 m N/m and the incorporation of MBP put into the DPPC monolayers has exerted a significant effect on the domain structure.MBP is not an integral membrane protein but,due to its positive charge,interacts with the lipid head groups and stabilizes the membranes.The interaction between MBP and phospholipid membrane to determine the nervous system of the disease has a good biophysical significance and medical value. 展开更多
关键词 myelin basic protein liquid crystal monolayers synergy factor surface morphology
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Effects of diethyldithiocarbamate on myelin basic protein expression in the rat lateral olfactory tract
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作者 Kun Xiong He Huang +4 位作者 Hui Wang Yan Cai Jing Yang Jufang Huang Xuegang Luo 《Neural Regeneration Research》 SCIE CAS CSCD 2009年第4期302-306,共5页
BACKGROUND: Dithiocarbamates can cause demyelination of axons in the peripheral nervous system. Its derivate, diethyldithiocarbamate, is cytotoxic, and causes olfactory mucosal damage and atrophy of the olfactory bul... BACKGROUND: Dithiocarbamates can cause demyelination of axons in the peripheral nervous system. Its derivate, diethyldithiocarbamate, is cytotoxic, and causes olfactory mucosal damage and atrophy of the olfactory bulb. However, it is still unclear whether the myelin sheath of the lateral olfactory tract is affected by diethyldithiocarbamate. OBJECTIVE: To investigate the effects of diethyldithiocarbamate on the myelin sheath of the rat lateral olfactory tract. This was done by examining changes in myelin basic protein expression after diethyldithiocarbamate treatment. DESIGN, TIME AND SETTING: A randomized, controlled, animal study was performed at the Laboratory of the Department of Human Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, China from July to November 2007. MATERIALS: A total of 72 Sprague Dawley rats were randomly assigned into a diethyldithiocarbamate group (n = 32), a solvent control group (n = 32), and a blank control group (n = 8). The diethyldithiocarbamate and solvent control groups were separately divided into 3-d, 7-d, 14-d and 28-d survival subgroups, with eight rats in each. Diethyldithiocarbamate (Sigma, USA) and goat anti-myelin basic protein polyclonal antibody (Santa Cruz, USA) were used in this study. METHODS: Rats in the diethyldithiocarbamate and solvent control groups were subcutaneously injected with diethyldithiocarbamate (600 mg/kg) and 0.01 mol/L phosphate buffered saline (600 mg/kg) at the posterior neck, respectively. Rats in the blank control group received no treatment. MAIN OUTCOME MEASURES: Immunohistochemical staining and Western blot assay were used to measure myelin basic protein expression in the rat lateral olfactory tract. RESULTS: Following immunohistochemical staining, myelin basic protein was uniformly distributed in the rat lateral olfactory tract in the blank control and solvent control groups. Western blot assay showed 21.5, 18, 17 and 14 ku positive bands. No significant difference was found in myelin basic protein distribution and blot pattern, in the rat lateral olfactory tract, in the diethyldithiocarbamate group, following immunohistochemical staining and Western blot assay. Myelin basic protein expression gradually decreased at day 3, reached the lowest level at day 7, and gradually increased again at days 14 and 28. CONCLUSION: Demyelination is induced by diethyldithiocarbamate in the rat lateral olfactory tract in an early stage, followed by remyelination at later stages. 展开更多
关键词 DIETHYLDITHIOCARBAMATE DEmyelinATION myelin basic protein Sprague Dawley rats lateral olfactory tract
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Clinical Significance of Serum Myelin Basic Protein in Patients with Severe Acute Pancreatitis
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作者 Liu Xunliang(刘训良) Qian Zhuyin(钱祝银) Miao Yi(苗 毅) Du Jinghui(杜竞辉) Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R.China 《Journal of Nanjing Medical University》 2000年第1期39-40,共2页
Objective In order to determine serum myelin basic protein (MBP) in patients with severe acute pancreatitis and evaluate its clinical significance. Methods\ Serum MBP was measured in 20 patients with acute hemorrhagi... Objective In order to determine serum myelin basic protein (MBP) in patients with severe acute pancreatitis and evaluate its clinical significance. Methods\ Serum MBP was measured in 20 patients with acute hemorrhagic necrotic pancreatitis (AHNP) and in 20 normal subjects by enzyme linked immunoabsorbent assay. Results\ Serum MBP content of AHNP group was significantly higher than that of normal control group (P<0.05). Serum MBP content in patients with pancreatic encephalopathy (PE) was significantly higher than that of those without PE (P<0.05). Conclusion\ ①Serum MBP content in patients with AHNP increased significantly;②Serum MBP content may reflect brain injury and its severity;③The prognosis of AHNP is correlated with its serum MBP content.\; 展开更多
关键词 acute hemorrhagic necrotic pancreatitis myelin basic protein ELISA
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Effect of nerve growth factor on changes of myelin basic protein and functional repair of peripheral nerve following sciatic nerve injury in rats 被引量:9
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作者 邵阳 马海涵 +6 位作者 伍亚民 陈恒胜 曾琳 李民 龙在云 李应玉 杨恒文 《Chinese Journal of Traumatology》 CAS 2002年第4期237-240,共4页
Objective: To investigate the therapeutic effect of nerve growth factor (NGF) on changes of myelin basic protein (MBP) and functional repair of sensory and motor nerve following sciatic nerve injury. Methods: The scia... Objective: To investigate the therapeutic effect of nerve growth factor (NGF) on changes of myelin basic protein (MBP) and functional repair of sensory and motor nerve following sciatic nerve injury. Methods: The sciatic nerves of rats were injured by sectioning with shaver,and divided into 3 groups: NGF group (Group A), group of normal saline solution (Group B), untreated group (Group C). The time point of observation was at the 4th week after operation. Sensory evoked potential (SEP) and motor evoked potential (MEP) were detected by Model WD 4000 nerve potential working diagnosis system. Immunohistochemical analysis was used for identification of MBP.Results: The latency of SEP in the Group A at the 4th week after operation was shorter than that in the Group B (P< 0.05 ). The MEP was elicited in 76% of the Group A and was higher than that in the Group B. Results of immunohistochemistry showed that there were less MBP positive cells in the Group A than in the Group B in one and four weeks respectively.Conclusions: NGF can improve the conductive function of injured peripheral nerve and facilitate regeneration of nerve. 展开更多
关键词 Nerve growth factor myelin basic protein Peripheral nerve injury Electrophysiology research
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Could Intrathymic Injection of Myelin Basic Protein Suppress Inflammatory Response After Co-culture of T Lymphocytes and BV-2 Microglia Cells? 被引量:3
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作者 Zhan-Qun Cui Bao-Long Liu +4 位作者 Qiao-Li Wu Ying Cai Wei-Jia Fan Ming-Chao Zhang Wei-Liang Ding 《Chinese Medical Journal》 SCIE CAS CSCD 2016年第7期831-837,共7页
Background: The interaction between activated microglia and T lymphocytes can yield abundant pro-inflammatory cytokines. Our previous study proved that thymus immune tolerance could alleviate the inflammatory respons... Background: The interaction between activated microglia and T lymphocytes can yield abundant pro-inflammatory cytokines. Our previous study proved that thymus immune tolerance could alleviate the inflammatory response. This study aimed to investigate whether intrathymic injection of myelin basic protein (MBP) in mice could suppress the inflammatory response after co-culture ofT lymphocytes and BV-2 microglia cells. Methods: Totally, 72 male C57BL/6 mice were randomly assigned to three groups (17 - 24 in each): Group A: intrathymic injection of 100 μl M BP (1 mg/ml); Group B: intrathymic injection of 100 μ1 phosphate-buffered saline (PBS); and Group C: sham operation group. Every eight mice in each group were sacrificed to obtain the spleen at postoperative days 3, 7, and 14, respectively. T lymphocytes those were extracted and purified from the spleens were then co-cultured with activated BV-2 microglia cells at a proportion of 1:2 in the medium containing MBP for 3 days. After identified the T lymphocytes by CD3, surface antigens oft lymphocytes (CD4, CD8, CD152, and CD154) and BV-2 microglia cells (CD45 and CD54) were detected by flow cytometry. The expressions of pro-inflammatory factors of BV-2 microglia cells (interleukin [1L]- 1β, tumor necrosis factor-o~ [TNF-α], and inducible nitric oxide synthase [iNOS]) were detected by quantitative real-time polymerase chain reaction (PCR). One-way analysis of variance (ANOVA) and the least significant difference test were used for data analysis. Results: The levels of CD152 in Group A showed an upward trend from the 3rd to 7th day, with a downward trend from the 7th to 14th day (20.12 ± 0.71%, 30.71 ± 1.14%, 13.50 ± 0.71% at postoperative days 3, 7, and 14, respectively, P 〈 0.05). The levels of CD 154 in Group A showed a downward trend from the 3ra to 7th day, with an upward trend from the 7th to 14th day (1 0.00± 0.23%, 5.28 ±0.69%, 14.67 ± 2.71% at postoperative days 3, 7, and 14, respectively, P 〈 0.05). The ratio ofCD4+/CD8 + T in Group A showed a downward trend from the 3rd to 7th day, with the minimum at postoperative day 7, then an upward trend from the 7th to 14th day (P 〈 0.05). Meanwhile, the levels of CD45 and CD54 in Group A were found as the same trend as the ratio of CD4+/CD8 + T (CD45:83.39 ± 2.56%, 82.74± 2.09%, 87.56 ± 2. 11%: CD54:3.80 ± 0.24%, 0.94 ± 0.40%, 3.41 ± 0.33% at postoperative days 3, 7, and 14, respectively, P 〈 0.05). The expressions of TNF-α, IL- 1 β, and iNOS in Group A were significantly lower than those in Groups B and C, and the values at postoperative day 7 were the lowest compared with those at postoperative days 3 and 14 (P 〈 0.05). No significant difference was found between Groups B and C. Conclusions: l ntrathymic injection of MBP could suppress the immune reaction that might reduce the secondary immune injury of brain tissue induced by an inflammatory response. 展开更多
关键词 Brain Injuries Immune Inflammation lntrathymic Injection myelin basic protein
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A thermodynamic investigation on the binding of mercury ion with myelin basic protein at different temperatures
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作者 G.Rezaei Behbehani L.Barzegar +1 位作者 A.A.Saboury S.Ghammami 《Chinese Chemical Letters》 SCIE CAS CSCD 2011年第5期623-625,共3页
A thermodynamic study on the interaction of myelin basic protein with mercury ion was studied by using isothermal titration calonmetry,ITC,at 300.15,310.15 and 320.15 K in Tris buffer solution at pH 7.The enthalpies o... A thermodynamic study on the interaction of myelin basic protein with mercury ion was studied by using isothermal titration calonmetry,ITC,at 300.15,310.15 and 320.15 K in Tris buffer solution at pH 7.The enthalpies of MBP + Hg^(2+) interaction are reported and analysed in terms of the extended solvation model.It was found that MBP has two identical and non-cooperative binding sites for Hg^(2+) ions.The intrinsic dissociation equilibrium constants are 99.904,112.968 and 126.724μmol/L,and the molar enthalpy of binding are -11.634,-10.768 and -10.117kJ mol^(-1) at 300.15,310.15 and 320.15 K,respectively. 展开更多
关键词 myelin basic protein Mercury ion Isothermal titration calorimtry Binding parameters
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Piezo1 suppression reduces demyelination after intracerebral hemorrhage 被引量:4
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作者 Jie Qu Hang-Fan Zong +4 位作者 Yi Shan Shan-Chun Zhang Wei-Ping Guan Yang Yang Heng-Li Zhao 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第8期1750-1756,共7页
Piezo1 is a mechanically-gated calcium channel.Recent studies have shown that Piezo1,a mechanically-gated calcium channel,can attenuate both psychosineand lipopolysaccharide-induced demyelination.Because oligodendrocy... Piezo1 is a mechanically-gated calcium channel.Recent studies have shown that Piezo1,a mechanically-gated calcium channel,can attenuate both psychosineand lipopolysaccharide-induced demyelination.Because oligodendrocyte damage and demyelination occur in intracerebral hemorrhage,in this study,we investigated the role of Piezo1 in intracerebral hemorrhage.We established a mouse model of cerebral hemorrhage by injecting autologous blood into the right basal ganglia and found that Piezo1 was largely expressed soon(within 48 hours)after intracerebral hemorrhage,primarily in oligodendrocytes.Intraperitoneal injection of Dooku1 to inhibit Piezo1 resulted in marked alleviation of brain edema,myelin sheath loss,and degeneration in injured tissue,a substantial reduction in oligodendrocyte apoptosis,and a significant improvement in neurological function.In addition,we found that Dooku1-mediated Piezo1 suppression reduced intracellular endoplasmic reticulum stress and cell apoptosis through the PERK-ATF4-CHOP and inositol-requiring enzyme 1 signaling pathway.These findings suggest that Piezo1 is a potential therapeutic target for intracerebral hemorrhage,as its suppression reduces intracellular endoplasmic reticulum stress and cell apoptosis and protects the myelin sheath,thereby improving neuronal function after intracerebral hemorrhage. 展开更多
关键词 apoptosis Ca^(2+)homeostasis endoplasmic reticulum stress intracerebral hemorrhage myelin basic protein myelin degradation OLIGODENDROCYTE Piezo1 STROKE white matter injury
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卒中后癫痫患者的血清MBP、Nesfatin-1表达水平及其危险因素
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作者 陈妍 李又佳 +3 位作者 苏晓梅 莫俊宁 黄振华 梁玉婵 《海南医学》 CAS 2024年第19期2749-2751,共3页
目的观察卒中后癫痫患者的血清髓鞘碱性蛋白(MBP)、新饱食分子蛋白-1(Nesfatin-1)表达水平,并探讨其危险因素。方法回顾性分析2021年7月至2023年7月于肇庆市第一人民医院神经内科住院治疗的200例卒中患者临床资料,将卒中后发生癫痫的85... 目的观察卒中后癫痫患者的血清髓鞘碱性蛋白(MBP)、新饱食分子蛋白-1(Nesfatin-1)表达水平,并探讨其危险因素。方法回顾性分析2021年7月至2023年7月于肇庆市第一人民医院神经内科住院治疗的200例卒中患者临床资料,将卒中后发生癫痫的85例患者作为研究组,未发生癫痫的115例作为对照组。比较两组患者的年龄、性别、吸烟、饮酒、卒中部位、病灶范围、病灶大小、基础疾病、美国国立卫生院卒中量表(NIHSS)评分和血清MBP、Nesfatin-1水平,并采用Logistic回归分析影响卒中后癫痫的危险因素。结果两组患者的年龄、性别、吸烟、饮酒、基础疾病比较差异均无统计学意义(P>0.05);研究组患者卒中部位为皮质、病灶范围为多脑叶、病灶>5 cm2、NIHSS评分>20分的占比明显高于对照组,差异均有统计学意义(P<0.05);研究组患者的MBP、Nesfatin-1水平分别为(5129.17±211.18)pg/mL、(7.30±1.83)mg/mL,明显高于对照组的(3135.10±150.60)pg/mL、(3.66±0.78)mg/mL,差异均有统计学意义(P<0.05);Logistic回归分析结果显示,血清MBP、Nesfatin-1、卒中部位、病灶范围、病灶大小、NIHSS评分均是影响卒中后癫痫患者的危险因素(P<0.05)。结论血清MBP、Nesfatin-1、卒中部位、病灶范围、病灶大小、NIHSS评分均是影响卒中后癫痫患者的危险因素,需要对这些危险因素进行临床干预,以减少卒中后癫痫的发生率。 展开更多
关键词 卒中 癫痫 髓鞘碱性蛋白 新饱食分子蛋白-1 危险因素
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帕金森病患者血清NPASDP-4,MBP水平表达与认知功能障碍及严重程度的诊断价值研究
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作者 郑德泉 江华 +4 位作者 林锦标 韩玉惠 李清金 黄巍 吴义森 《现代检验医学杂志》 CAS 2024年第3期17-23,59,共8页
目的探讨帕金森病患者血清神经元PAS结构域蛋白4(neuronal Per-Arnt-Sim domain protein 4,NPASDP-4)、髓鞘碱性蛋白(myelin basic protein,MBP)水平表达与认知功能障碍(cognitive impairment,CI)及严重程度的诊断价值研究。方法选取中... 目的探讨帕金森病患者血清神经元PAS结构域蛋白4(neuronal Per-Arnt-Sim domain protein 4,NPASDP-4)、髓鞘碱性蛋白(myelin basic protein,MBP)水平表达与认知功能障碍(cognitive impairment,CI)及严重程度的诊断价值研究。方法选取中国人民解放军联勤保障部队第九〇九医院收治的138例帕金森病患者为帕金森病组,同期该院体检中心的健康体检者69例为健康对照组,并根据是否发生CI以及其严重程度进一步将帕金森病组患者分为认知功能正常组(n=55)、轻度CI组(n=51)和痴呆组(n=32)。收集受试者一般资料;ELISA法检测血清NPASDP-4和MBP水平;相关性分析采用Spearman等级相关或Pearson线性相关;诊断价值分析采用ROC曲线;影响因素分析采用多因素Logistic回归。结果与健康对照组比较,帕金森病组血清NPASDP-4(6.75±0.48ng/ml vs2.38±0.31ng/ml),MBP(8.34±0.65μg/L vs 3.54±0.42μg/L)水平升高,差异具有统计学意义(t=68.751,55.761,均P<0.05)。认知功能正常组、轻度CI组、痴呆组H-Y分期比较,差异有统计学意义(χ2=7.788,P<0.05)。UPDRS-Ⅲ评分与认知功能正常组(41.95±10.36分)比较,轻度CI组(47.92±11.63分)、痴呆组(50.78±13.69分)评分升高,差异具有统计学意义(H=6.672,均P<0.05)。认知功能正常组、轻度CI组、痴呆组病程(4.28±0.54,4.71±0.58和5.16±0.63年)及血清NPASDP-4(5.89±0.40,6.83±0.55和8.12±0.54ng/ml),MBP(6.65±0.56,8.94±0.69和10.27±0.70μg/L)水平依次显著升高(H=24.114,207.950,355.594,均P<0.05),MMSE评分(28.47±0.94,24.51±1.35和17.09±2.57分)、MoCA评分(27.45±1.03,20.18±1.92和11.75±2.53分)、GPCOG总分(13.47±0.69,10.25±1.04和8.97±0.82分)依次显著降低(H=515.005,775.933,327.584,均P<0.05),差异具有统计学意义。帕金森病患者血清NPASDP-4,MBP水平均与病程(r=0.316,0.358)、H-Y分期(r=0.345,0.384)、UPDRS-Ⅲ评分(r=0.371,0.396)呈显著正相关(P<0.05),与MMSE评分(r=-0.468,-0.517)、MoCA评分(r=-0.504,-0.569)、GPCOG总分(r=-0.527,-0.538)呈显著负相关(均P<0.05)。血清NPASDP-4,MBP水平及二者联合诊断帕金森病患者CI的曲线下面积(AUC)分别为0.850,0.930和0.960,诊断帕金森病患者CI严重程度的AUC分别为0.866,0.803和0.933。H-Y分期中期[OR(95%CI):4.725(1.742~12.814)],H-Y分期晚期[OR(95%CI):5.083(1.919~13.464)]、UPDRS-Ⅲ评分[OR(95%CI):3.257(1.464~7.246)]、NPASDP-4[OR(95%CI):5.324(1.516~18.701)]和MBP[OR(95%CI):5.769(2.459~13.533)]是帕金森病患者CI的影响因素(均P<0.05);NPASDP-4[OR(95%CI):4.768(2.382~9.543)],MBP[OR(95%CI):5.846(3.141~10.882)]是帕金森病患者CI严重程度的影响因素(均P<0.05)。结论帕金森病患者血清NPASDP-4和MBP呈高水平,且均与CI及其严重程度密切相关,可能具有一定的临床诊断价值。 展开更多
关键词 认知功能障碍 帕金森病 神经元PAS 结构域蛋白4 髓鞘碱性蛋白
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血清髓鞘碱性蛋白表达与急性脑梗死患者rt-PA静脉溶栓后出血转化的关系
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作者 侯娟 普芳丽 刘琴 《河南医学研究》 CAS 2024年第11期2005-2008,共4页
目的 探讨血清髓鞘碱性蛋白(MBP)表达与急性脑梗死(ACI)患者重组组织型纤溶酶原激活物(rt-PA)静脉溶栓后出血转化(HT)的关系。方法 前瞻性纳入2019年5月至2021年12月商丘市第一人民医院收治的105例ACI患者为研究对象,患者均接受rt-PA静... 目的 探讨血清髓鞘碱性蛋白(MBP)表达与急性脑梗死(ACI)患者重组组织型纤溶酶原激活物(rt-PA)静脉溶栓后出血转化(HT)的关系。方法 前瞻性纳入2019年5月至2021年12月商丘市第一人民医院收治的105例ACI患者为研究对象,患者均接受rt-PA静脉溶栓治疗,并根据治疗后24 h内HT发生情况分为HT组与无HT组,比较两组一般资料、治疗前血清MBP水平及其他实验室指标,重点分析血清MBP与ACI患者rt-PA静脉溶栓后HT发生的关系。结果 105例患者中15例存在HT,发生率为14.29%;HT组溶栓治疗前美国国立卫生院卒中量表(NIHSS)评分高于无HT组,发病至治疗时间长于无HT组,血清MBP水平高于无HT组,差异有统计学意义(P<0.05);点二列相关性分析显示,血清MBP与ACI患者rt-PA静脉溶栓后HT发生有关(P<0.05);多因素logistic分析发现,溶栓治疗前NIHSS评分、发病至治疗时间、血清MBP水平均是ACI患者rt-PA静脉溶栓后HT发生的影响因素(P<0.05);受试者工作特征曲线分析发现,血清MBP预测ACI患者rt-PA静脉溶栓后HT发生的曲线下面积为0.740(95%CI:0.606~0.874),具有一定预测价值。结论 血清MBP水平与ACI患者rt-PA静脉溶栓后HT发生密切相关,可作为临床早期预测患者rt-PA静脉溶栓后HT发生风险的辅助指标。 展开更多
关键词 急性脑梗死 溶栓 出血转化 髓鞘碱性蛋白 相关性
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GFAP、D-DI、PCT水平与脓毒症患者病情严重程度、预后的关系
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作者 梁文焕 蒙方营 +2 位作者 洪晓绵 凌涛 陈惠娟 《国际检验医学杂志》 CAS 2024年第S01期23-27,共5页
目的探讨胶质纤维酸性蛋白(GFAP)、D-二聚体(D-DI)、降钙素原(PCT)水平与脓毒症患者病情严重程度、预后的关系。方法回顾性分析该院接收诊疗的60例脓毒症患者作为脓毒症组,按病情严重程度将其分为重症组(n=24)和轻症组(n=36),另选同期... 目的探讨胶质纤维酸性蛋白(GFAP)、D-二聚体(D-DI)、降钙素原(PCT)水平与脓毒症患者病情严重程度、预后的关系。方法回顾性分析该院接收诊疗的60例脓毒症患者作为脓毒症组,按病情严重程度将其分为重症组(n=24)和轻症组(n=36),另选同期于该院体检的50例健康者作为对照组。比较各组患者血清指标[GFAP、MBP、D-二聚体(D-DI)、纤维蛋白降解产物(FDP)、降钙素原(PCT)]水平,并比较不同病情程度患者相关评分[急性生理与慢性健康评分状况Ⅱ(APACHEⅡ)、序贯器官衰竭(SOFA)]及预后指标。进一步分析血清指标与APACHEⅡ、SOFA、预后指标的关系,用受试者工作特征(ROC)曲线评价血清指标联合对患者的诊断价值。结果脓毒症组血清GFAP、MBP、D-DI、FDP和PCT水平均高于对照组,差异有统计学意义(P<0.05)。与轻症组比较,重症组GFAP、MBP、D-DI、FDP、PCT水平及APACHEⅡ评分、SOFA评分均更高,ICU住院时间与机械通气时间均更长(P<0.05)。经Pearson相关性分析发现,GFAP、MBP、D-DI、FDP、PCT水平均与APACHEⅡ评分、SOFA评分、ICU住院时间、机械通气时间、28 d病死率呈显著正相关(P<0.05)。GFAP、D-DI、PCT联合诊断灵敏度为81.33%、特异度为87.09%和曲线下面积(AUC)为0.932,优于单一指标。Cox多因素分析显示GFAP、MBP、D-DI、FDP、PCT、APACHEⅡ、SOFA、ICU住院时间、机械通气时间均与28 d病死率密切相关(P<0.05)。结论GFAP、D-DI联合PCT对脓毒症患者病情具有良好的诊断价值,且与患者病情程度及预后密切相关。 展开更多
关键词 脓毒症 预后 胶质纤维酸性蛋白 髓鞘碱性蛋白 降钙素原
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延迟亚低温对新生幼鼠脑白质损伤的改善作用
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作者 梁穗新 提运幸 +2 位作者 黄骏荣 李秀红 周雯嘉 《医学研究杂志》 2024年第3期163-166,171,共5页
目的探讨延迟亚低温对氧糖剥夺-复氧复糖诱导新生幼鼠脑白质损伤的改善作用及其可能机制。方法建立40只新生幼鼠全脑灌流和氧糖剥夺模型,随机平均分为4组进行延迟亚低温干预,每组各10只。用免疫荧光法分析各组脑切片髓鞘碱性蛋白(myelin... 目的探讨延迟亚低温对氧糖剥夺-复氧复糖诱导新生幼鼠脑白质损伤的改善作用及其可能机制。方法建立40只新生幼鼠全脑灌流和氧糖剥夺模型,随机平均分为4组进行延迟亚低温干预,每组各10只。用免疫荧光法分析各组脑切片髓鞘碱性蛋白(myelin basic protein,MBP)表达、少突胶质前体细胞(oligodendrocyte precursor cell,O4)数量。采用实时荧光定量聚合酶链反应(real-time quantitative polymerase chain reaction,RT-qPCR)检测M1型和M2型小胶质细胞相关基因表达。结果在亚低温32℃延迟24、48和72h组MBP蛋白荧光强度均高于对照组,且荧光强度随着延迟时长的增加而递增;O4细胞数量均高于对照组(F分别为314.907,P<0.001),且发现细胞数量的增加与延迟时长呈显著正相关(r=0.968,P<0.001);M1型小胶质细胞的CD32、iNOS表达均低于对照组(F分别为41.451、92.912,P均<0.001),且CD32、iNOS表达均与延迟时长呈显著负相关(r分别为-0.868、-0.916,P均<0.001);M2型小胶质细胞的CD206、IL-10表达均高于对照组(F分别为79.699、63.839,P均<0.001),且CD206、IL-10表达均与延迟时长呈显著负相关(r分别为0.862、0.910,P均<0.001)。结论延迟亚低温能有效改善氧糖剥夺-复氧复糖诱导新生幼鼠脑白质损伤,其机制可能与增加O4数量和促进小胶质细胞向M2型极化有关。 展开更多
关键词 脑白质损伤 新生幼鼠 亚低温 少突胶质前体细胞 髓鞘碱性蛋白 小胶质细胞
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Association between Alzheimer's disease pathogenesis and early demyelination and oligodendrocyte dysfunction 被引量:6
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作者 Yu-Xia Dong Hui-Yu Zhang +3 位作者 Hui-Yuan Li Pei-Hui Liu Yi Sui Xiao-Hong Sun 《Neural Regeneration Research》 SCIE CAS CSCD 2018年第5期908-914,共7页
The APPSwe/PSEN1 dE9(APP/PS1) transgenic mouse model is an Alzheimer's disease mouse model exhibiting symptoms of dementia, and is commonly used to explore pathological changes in the development of Alzheimer's di... The APPSwe/PSEN1 dE9(APP/PS1) transgenic mouse model is an Alzheimer's disease mouse model exhibiting symptoms of dementia, and is commonly used to explore pathological changes in the development of Alzheimer's disease. Previous clinical autopsy and imaging studies suggest that Alzheimer's disease patients have white matter and oligodendrocyte damage, but the underlying mechanisms of these have not been revealed. Therefore, the present study used APP/PS1 mice to assess cognitive change, myelin loss, and corresponding changes in oligodendrocytes, and to explore the underlying mechanisms. Morris water maze tests were performed to evaluate cognitive change in APP/PS1 mice and normal C57 BL/6 mice aged 3 and 6 months. Luxol fast blue staining of the corpus callosum and quantitative reverse transcription-polymerase chain reaction(q RT-PCR) for myelin basic protein(MBP) mRNA were carried out to quantify myelin damage. Immunohistochemistry staining for NG2 and qRT-PCR for monocarboxylic acid transporter 1(MCT1) mRNA were conducted to assess corresponding changes in oligodendrocytes. Our results demonstrate that compared with C57 BL/6 mice, there was a downregulation of MBP mRNA in APP/PS1 mice aged 3 months. This became more obvious in APP/PS1 mice aged 6 months accompanied by other abnormalities such as prolonged escape latency in the Morris water maze test, shrinkage of the corpus callosum, upregulation of NG2-immunoreactive cells, and downregulation of MCT1 mRNA. These findings indicate that the involvement of early demyelination at 3 months and the oligodendrocyte dysfunction at 6 months in APP/PS1 mice are in association with Alzheimer's disease pathogenesis. 展开更多
关键词 nerve regeneration Alzheimer's disease APP/PS1 mice Morris water maze test corpus callosum DEmyelinATION OLIGODENDROCYTES myelin basic protein monocarboxylic acid transporter 1 neural regeneration
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巨刺阳陵泉穴对MCAO模型大鼠运动功能作用机制研究
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作者 谢心悦 潘彦舒 +8 位作者 方琪 王浩 刘含之 王安琪 江洋 孙树勇 粆香 柯雨露 邹忆怀 《山东中医药大学学报》 2024年第3期326-336,共11页
目的:观察巨刺阳陵泉穴对大脑中动脉栓塞(MCAO)模型大鼠运动功能障碍的疗效和对胼胝体髓鞘碱性蛋白(MBP)的影响,探讨巨刺阳陵泉穴改善脑梗死运动障碍的机制。方法:将68只雄性SD大鼠随机分为假手术组、模型组、巨刺组和非经非穴组,每组1... 目的:观察巨刺阳陵泉穴对大脑中动脉栓塞(MCAO)模型大鼠运动功能障碍的疗效和对胼胝体髓鞘碱性蛋白(MBP)的影响,探讨巨刺阳陵泉穴改善脑梗死运动障碍的机制。方法:将68只雄性SD大鼠随机分为假手术组、模型组、巨刺组和非经非穴组,每组17只。除假手术组外,其余三组均用线栓法制备右侧MCAO模型,术后第2天开始干预,巨刺组电针刺激右侧阳陵泉,非经非穴组电针刺激双侧胁下非经非穴位置,每天1次,每次20 min,连续14 d。测定大鼠抓力、神经功能缺损得分;2,3,5-三苯基氯化四氮唑(TTC)染色计算脑梗死体积百分比,苏木精-伊红染色法(HE)观察胼胝体组织形态,免疫组化、酶联免疫吸附测定(ELISA)法、蛋白质印迹(WB)法、反转录聚合酶链反应(RT-PCR)法分别检测右脑胼胝体MBP蛋白及mRNA表达水平。结果:与假手术组相比,模型组大鼠抓力下降,神经功能缺损得分增加,脑梗死体积百分比增加,胼胝体髓鞘结构崩解,右脑胼胝体MBP蛋白及mRNA表达水平降低,差异均有统计学意义(P<0.05)。与模型组、非经非穴组比,巨刺组大鼠抓力增大,神经功能缺损得分降低,脑梗死体积百分比降低,髓鞘结构较为完整,右脑胼胝体MBP蛋白及mRNA表达水平升高,差异均有统计学意义(P<0.05)。结论:巨刺阳陵泉穴可能通过提高胼胝体MBP蛋白表达水平促进MCAO大鼠运动功能康复。 展开更多
关键词 巨刺 阳陵泉穴 电针 脑缺血 胼胝体 髓鞘碱性蛋白 中风康复 大鼠 大脑中动脉栓塞
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丹参减轻新生大鼠低灌注性白质损伤
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作者 苏学文 袁海凤 +5 位作者 冯万禹 宋瑞霞 陈俊龙 伊儒晗 朱华 窦忠霞 《中国组织工程研究》 CAS 北大核心 2024年第20期3229-3234,共6页
背景:早产是一个高发病率和高死亡率的重大的全球性健康问题。白质损伤是早产儿最常见的脑损伤。丹参是一种传统的草药,在亚洲国家最常用于治疗心脑血管疾病。目的:探讨丹参在早产儿脑白质损伤方面的治疗作用。方法:选取3 d龄新生雄性S... 背景:早产是一个高发病率和高死亡率的重大的全球性健康问题。白质损伤是早产儿最常见的脑损伤。丹参是一种传统的草药,在亚洲国家最常用于治疗心脑血管疾病。目的:探讨丹参在早产儿脑白质损伤方面的治疗作用。方法:选取3 d龄新生雄性SD大鼠18只,随机分为正常组、白质损伤组、白质损伤+丹参组,后两组通过永久性结扎右侧颈总动脉建立早产白质损伤大鼠模型,正常组不造模。白质损伤+丹参组自造模第1天起给予丹参5 mg/(kg•d)腹腔注射,正常组及白质损伤组给予同剂量PBS进行干预,连续给药7 d。造模14 d后处死大鼠,采用苏木精-伊红染色显微镜下观察大鼠脑组织病理情况,免疫荧光法观察髓鞘碱性蛋白和CC1在脑组织中的表达水平,应用液相色谱-质谱联用仪分析丹参发挥作用的可能途径。结果与结论:①白质损伤组大鼠胼胝体结构不规则,细胞肿胀坏死,髓鞘形成显著减少,神经纤维排列不规则且松散,髓鞘显著减少;与白质损伤组相比,白质损伤+丹参组大鼠脑组织细胞肿胀减轻,损伤减轻,髓鞘增多;②髓鞘碱性蛋白与髓鞘的形成密切相关,CC1是髓鞘少突胶质细胞的标志物,白质损伤组大鼠脑组织中髓鞘碱性蛋白及CC1表达显著降低;白质损伤+丹参组大鼠脑组织中髓鞘碱性蛋白及CC1的表达显著增加(P<0.0001),表明丹参减轻了白质损伤;③液相色谱-质谱联用仪分析发现白质损伤+丹参组和白质损伤组之间差异最显著的蛋白与补体和凝血级联反应有关;④研究表明丹参具有治疗早产白质损伤的潜在运用价值。 展开更多
关键词 丹参 早产儿 白质损伤 髓鞘碱性蛋白 补体与凝血级联反应
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缺血性脑卒中SD大鼠血清、脑脊液中NSE、MBP水平及其与神经功能缺损评分和脑梗死体积的相关性
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作者 牛莉莉 王亚萍 +2 位作者 张英 李建明 阎萍 《检验医学与临床》 CAS 2024年第15期2226-2229,2236,共5页
目的探讨缺血性脑卒中SD大鼠血清、脑脊液中神经元特异性烯醇化酶(NSE)、髓鞘碱性蛋白(MBP)水平及其与神经功能缺损评分和脑梗死体积的相关性。方法购买SD大鼠进行大脑中动脉闭塞缺血模型造模手术,将术后成功造模的大鼠随机分为8组,每组... 目的探讨缺血性脑卒中SD大鼠血清、脑脊液中神经元特异性烯醇化酶(NSE)、髓鞘碱性蛋白(MBP)水平及其与神经功能缺损评分和脑梗死体积的相关性。方法购买SD大鼠进行大脑中动脉闭塞缺血模型造模手术,将术后成功造模的大鼠随机分为8组,每组8只,术后8 h进行神经功能缺损评分,术后在8 h、12 h、1 d、3 d、5 d、7 d及21 d时间段采集腹腔静脉血及抽取延髓脑脊液后,断头取脑,进行0.4%的2,3,5-氯化三苯基四氮唑大脑染色测定脑梗死体积,并检测NSE及MBP水平。采用Spearman相关对血清、脑脊液NSE、MBP水平与脑梗死体积和神经功能缺损评分的相关性进行分析。结果各组血清、脑脊液中NSE和MBP水平在术后8 h开始升高,3 d达峰值,7 d下降至与对照比较差异无统计意义(P>0.05);术后8 h至5 d,脑脊液NSE和MBP水平明显高于血清。血清、脑脊液NSE、MBP水平与脑梗死体积、神经功能缺损评分均呈正相关(P<0.05)。结论血清、脑脊液中NSE、MBP为脑梗死的新型标志物,通过动物实验可为临床患者标本采集推荐最佳时间窗口。 展开更多
关键词 SD大鼠动物模型 外周静脉血 脑脊液 神经功能缺损评分 脑卒中 脑梗死 神经元特异性烯醇化酶 髓鞘碱性蛋白
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参芎葡萄糖注射液联合鼠神经生长因子治疗新生儿缺氧缺血性脑病的临床研究
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作者 黄丽 杨依 《联勤军事医学》 CAS 2024年第8期694-697,714,共5页
目的 探讨参芎葡萄糖注射液(Shenxiong glucose injection,SGI)联合鼠神经生长因子(mouse nerve growth factor,mNGF)治疗新生儿缺氧缺血性脑病(hypoxic-ischemic encephalopathy,HIE)的疗效及对血清髓鞘碱性蛋白(myelin basic protein,... 目的 探讨参芎葡萄糖注射液(Shenxiong glucose injection,SGI)联合鼠神经生长因子(mouse nerve growth factor,mNGF)治疗新生儿缺氧缺血性脑病(hypoxic-ischemic encephalopathy,HIE)的疗效及对血清髓鞘碱性蛋白(myelin basic protein,MBP)和神经生长因子(nerve growth factor,NGF)水平的影响。方法 选择2021-08/2023-11月收治的HIE患儿120例,利用分层随机化分组法将其分为对照组和观察组,每组60例。对照组使用SGI进行治疗,观察组使用SGI+mNGF进行治疗。观察两组患者的治疗效果、运动表现测试(test of infant motor performance,TIMP)评分、行为神经测定(neonatal behavioral neurological assessment,NBNA)评分、血气指标[乳酸(lactic acid,Lac)、酸碱度(pondus hydrogenii,pH)、二氧化碳分压(partial pressure of carbon dioxide,PaCO_(2))、碱剩余(base excess,BE)、氧分压(partial pressure of oxygen,PaO_(2))]、MBP及NGF水平,同时观察用药期间两组患儿不良反应发生情况。结果 观察组患儿治疗总有效率(91.67%)显著高于对照组(75.00%),差异有统计学意义(P<0.05)。两组患儿pH、PaO_(2)、BE、TIMP、NBNA和NGF在治疗后均显著升高,且观察组高于对照组,差异均有统计学意义(P均<0.05);PaCO_(2)、Lac、MBP水平均显著降低,且观察组低于对照组,差异均有统计学意义(P均<0.05);两组患儿不良反应发生率差异无统计学意义(P>0.05)。结论 使用SGI联合mNGF治疗新生儿HIE具有显著疗效,且可以改善患儿血液氧合功能,提高其运动能力,在降低MBP水平的同时,还可提高NGF水平,对修复新生儿神经功能损伤效果显著。 展开更多
关键词 新生儿 缺氧缺血性脑病 参芎葡萄糖注射液 鼠神经生长因子 血清髓鞘碱性蛋白 神经生长因子
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MECT联合阿立哌唑治疗精神分裂症的效果及对MBP、GDNF和炎症因子的影响
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作者 余伟 镇艳平 《中外医学研究》 2024年第19期34-37,共4页
目的:探讨无抽搐电休克治疗(MECT)联合阿立哌唑治疗精神分裂症的效果及对髓鞘碱性蛋白(MBP)、胶质细胞源性神经营养因子(GDNF)和炎症因子的影响。方法:选取2020年1月—2022年12月咸宁博德精神病医院收治的100例精神分裂症患者。根据随... 目的:探讨无抽搐电休克治疗(MECT)联合阿立哌唑治疗精神分裂症的效果及对髓鞘碱性蛋白(MBP)、胶质细胞源性神经营养因子(GDNF)和炎症因子的影响。方法:选取2020年1月—2022年12月咸宁博德精神病医院收治的100例精神分裂症患者。根据随机数表法将其分为观察组与对照组,各50例。对照组给予阿立哌唑治疗,观察组在对照组基础上给予MECT治疗。比较两组治疗前后精神分裂症症状、相关指标、炎症因子,临床疗效及不良反应。结果:治疗后,两组阴性症状、阳性症状、一般精神病理症状评分及总分显著降低,观察组阴性症状、阳性症状评分及总分均显著低于对照组,差异有统计学意义(P<0.05)。观察组总有效率显著高于对照组,差异有统计学意义(P<0.05)。治疗后,两组MBP水平显著降低,GDNF水平显著增高,观察组MBP水平低于对照组,GDNF水平高于对照组,差异有统计学意义(P<0.05)。治疗后,两组肿瘤坏死因子-α(TNF-α)、白细胞介素-1β(IL-1β)水平显著降低,观察组TNF-α、IL-1β均低于对照组,差异有统计学意义(P<0.05)。两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论:MECT联合阿立哌唑治疗精神分裂症能够更好地调节MBP、GDNF表达和炎症反应,改善患者精神症状,提高临床疗效,且不增加不良反应。 展开更多
关键词 精神分裂症 无抽搐电休克 阿立哌唑 炎症 髓鞘碱性蛋白
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