妇女更年期心血管系统失调的护理

1妇女更年期心血管系统失调的表现1.1潮红潮红是血管舒张和收缩失调引起的一种症状。患者突感胸部压迫感，心悸，有时眼前发黑，然后感到一阵潮热，自下而上涌向头部，颜面潮红出汗。有的患者则怕冷或阵发性出汗而不伴随潮红。潮红发作的频率及延续时间因人而异。     

超临界CO2萃取灯盏花中总黄酮成分的工艺研究

目的：探讨从灯盏花中提取总黄酮成分的工艺。方法：采用超临界CO2萃取法，并与水提醇沉法比较。结果：超临界CO2萃取的最佳工艺为：压力为25MPa，夹带剂为85％乙醇，萃取温度为40％，萃取时间3h，夹带剂加入量800mL，CO2流量为15L／h。结论：从灯盏花中提取总黄酮成分，超临界CO2萃取是可行的。     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

单次灌胃杂色曲霉素对小鼠大脑细胞的影响

目的　探讨单次ig杂色曲霉素 (ST)对小鼠大脑细胞的影响。方法　采用形态学观察和流式细胞术定量检测方法 ,研究ST对BALB/c小鼠大脑神经细胞的影响。结果　病理形态学观察可见 ,ig小剂量ST(3μg·kg-1 )后 1 2h或大剂量ST(3mg·kg-1 )后6h即可见小鼠大脑皮质、丘脑、海马CA2区神经元出现胞核固缩深染、胞浆嗜酸性变、空泡变性等病理变化 ,且随剂量增大和作用时间延长 ,病变神经元逐渐增多 ;光镜下对海马CA2区病变神经元进行计数分析 ,结果表明ST处理组发生病理变化的神经元比例均高于相应对照组 ,且呈剂量和时间依赖性增高 ;流式细胞术定量检测结果表明 ,igST 3,30 ,30 0和30 0 0 μg·kg-1 1 2h后 ,小鼠脑细胞的凋亡率呈剂量依赖性增高 ;ig3mg·kg-1 的ST后 6～48h,随ST作用时间的延长 ,脑细胞凋亡率也明显增高。结论经口给予ST可导致小鼠大脑皮质、丘脑、海马CA2区神经元发生退行性病变 ,诱导并促进小鼠大脑细胞凋亡     

维生素C对脱氧雪腐镰刀菌烯醇诱导的单个核细胞HLA-Ⅰ表达抑制作用的影响

目的探讨不同剂量维生素 C(vitamin C,VC)对脱氧雪腐镰刀菌烯醇(deoxynivalenol,DON)诱导的体外培养人外周血单个核细胞(human peripheral blood mononuclear cells,HPBMC)HLA-Ⅰ表达抑制作用的影响。方法采用流式细胞术(flow cytometry,FCM)、免疫细胞化学和蛋白印迹(Western blotting)方法研究了不同剂量(25μmol/L 和100μmol/L)VC 预处理对 DON 诱导的 HPBMCHLA-Ⅰ表达抑制作用的影响。结果 FCM 定量检测结果表明,DON 处理组 HPBMC HLA-Ⅰ的表达与正常对照组相比明显降低(FI 值0.88±0.02比1.00±0.03,P<0.05)。25μmol/L 和100μmol/LVC 预处理+DON 组 HPBMC HLA-Ⅰ表达的 FI 值分别为1.15±0.06和1.10±0.02,均明显高于DON 处理组(0.88±0.02,P<0.05)。同时,25μmol/L 和100μmol/L VC 单独处理组 HPBMC HLA-Ⅰ的表达量也均明显高于对照组(FI 值1.28±0.03和1.25±0.05比1.00±0.03),表明 VC 可在一定程度上促进体外培养的 HPBMC HLA-Ⅰ表达(P<0.05)。免疫细胞化学结果表明,与 DON 处理组相比,两种不同剂量 VC 预处理+DON 组 HLA-Ⅰ表达阳性的细胞百分率比 DON 处理组明显增高(70.10%±6.90%和64.50%±5.50%比42.20%±4.30%,P<0.05)。蛋白印迹同样证实了以上结果。结论 VC 可一定程度的拮抗 DON 对体外培养的 HPBMC HLA-Ⅰ表达的抑制作用。     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

神经肌电图检测在诊断早期格林巴利综合征的临床意义

目的:探究在格林巴利综合征的早期诊断中神经肌电图检测的临床意义。方法:选取2016年7月-2018年7月在我院进行治疗的早期格林巴利综合征患者45例,对其进行肌电图、神经传导速度以及F波的检测。结果:格林巴利患者安静状态下一般会出现数目较多的纤颤电位和正相电位,运动、感觉传导速度明显变慢且末端潜伏期增长,F波潜伏期增长且出现率降低。结论:在格林巴利综合征的早期诊断中应用神经肌电图进行检测在降低检测损害程度、提高患者治疗效果等方面具有明显优势,同时还能够尽量减少漏诊、误诊的情况出现,具有较为理想的诊断价值,可以在临床上进行广泛的推广和应用。