灭幽门螺杆菌胶囊四联和新三联疗法对溃疡再生黏膜成熟度的影响

最近的研究认为 ,愈合溃疡再生黏膜的质量与溃疡复发有关 ,本研究采用双盲对照研究探讨中西医结合疗法 (灭幽门螺杆菌胶囊四联 )和新三联 (兰索拉唑 +克拉霉素 +阿莫西林 )治疗后对溃疡再生黏膜成熟情况的影响。1　资料与方法1.1　病例选择　选择经电子胃镜 (OlympusGIF XQ10 ;OlympusOpticalCo;Tokyo ,Japan)检查证实有消化性溃疡(PU) ,胃窦黏膜活检有幽门螺杆菌 (Hp)感染 (快速尿素酶试验 ,组织涂片革兰染色和Warthin Starry银染色 3项检查中 ,2项或以上阳性者定为Hp阳性 )的门诊或住院患者为研究对象 ,并除外PU的并发症。本研究…     

CD31、CD105和PTEN在宫颈癌中的表达及其临床病理意义

目的:分析CD31、CD105和PTEN蛋白与宫颈癌临床病理指标的关系,探讨其在宫颈癌发生、发展、转移及预后中的意义及相互关系。方法:采用免疫组化SP法检测65例宫颈癌组织、25例正常宫颈组织中的CD31、CD105标记微血管密度(MVD)情况和PTEN蛋白表达情况。结果:CD31在宫颈癌组织中MVD为(48.33±3.66)高于正常宫颈组织中MVD(8.68±1.26),差异有统计学意义(P<0.05);CD31-MVD值与宫颈癌组织学类型、临床分期有关(P<0.05),而与年龄、淋巴结转移及组织学分化程度无关(P>0.05)。CD105在宫颈癌组织中MVD为(32.56±2.81)高于正常宫颈组织中MVD(1.69±2.14),差异有统计学意义(P<0.05);MVD值与宫颈癌临床分期、有无淋巴结转移有关(P<0.05),而与年龄、组织学分化程度及组织学类型无关(P>0.05)。正常宫颈组织PTEN阳性表达率为100.0%(25/25)高于宫颈癌组织36.92%(24/65),差异有统计学意义(P<0.01)。宫颈癌组织PTEN阳性表达与临床分期、淋巴结转移有关(P<0.05),而与年龄、分化程度、组织类型等无关(P>0.05)。宫颈癌组织中CD31和CD105的表达呈正相关(rs=0.83,P<0.05),CD31和PTEN呈负相关(rs=-0.68,P<0.05),CD105与PTEN呈负相关(rs=-0.76,P<0.05)。结论:联合检测PTEN、CD31与CD105可作为宫颈癌诊断、治疗、转移及评估预后的重要指标。     

单发胃息肉样病变内镜特点和病理特征

目的：观察单发胃息肉样病变的内镜和病理形态学特征,探讨不同类型胃息肉的增殖和分化特征。方法分析661例单发性胃息肉样病变临床病理特点,免疫组织化学 EliVisionTMplus 两步法检测63例各类型胃息肉增殖细胞核抗原（Ki67）,细胞角蛋白7（CK7）,细胞角蛋白20（CK20）的表达。结果内镜诊断661例单发胃息肉样病变多为炎症,只有34．9％（231／661）诊断为胃息肉;单发性胃息肉样病变主要发生于胃窦;其中增生性息肉157例,在息肉中所占比例最高,多发生在胃窦部和贲门;胃腺瘤仅7例,主要发生于胃窦;除炎性纤维性息肉外,胃息肉的腺上皮均有不同程度 Ki-67表达,胃腺瘤的 Ki-67标记指数明显高于其他胃息肉（P ＜0．05）;胃息肉腺上皮免疫表型以CK7＋／CK20＋为主。结论胃息肉临床病理诊断符合率较低;不同类型胃息肉增殖指数不同,但免疫表型相似。     

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.     

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.     

传统中医药补肾固筋方对膝骨性关节炎IL-1、TNF-α的调控机制研究及意义

目的：观察自拟补肾固筋方对膝骨性关节炎（KOA）IL-1、TNF-α的表达及作用机制。方法：8月龄健康雄性新西兰大白兔76只,随机分为空白组、模型组、中药组、西药组,每组19只,除空白组外均采用改良Hulth造模法造模,连续给药8周后,取血清及膝关节前方部分滑膜组织、股骨内髁关节软骨及软骨下骨,ELISA法检测IL-1、TNF-α含量。结果：西药组关节间隙狭窄,介于模型组和中药组之间,骨赘明显;中药组关节间隙稍窄,关节面稍粗糙伴轻微骨赘。IL-1、TNF-α含量在模型组中比空白组升高（P<0.01）;两个给药组比模型组降低（P<0.01）,两给药组之间比较无显著性差异。结论：补肾固筋方有效降低IL-1、TNF-α的分泌水平,延缓软骨退变,为临床应用提供科学的实验依据。     

U0126、SB203580、PD98059、LY294002对体外缺氧状态下A549细胞侵袭力的影响

目的 探讨U0126、SB203580、PD98059和LY294002对体外缺氧状态下人肺癌细胞A549侵袭力的影响。方法 由DFOM建立缺氧环境，U0126、SB203580、PD98059和LY294002处理A549细胞，采用细胞培养、BD细胞培养小室、Giemsa染色和免疫细胞化学染色等方法，检测细胞侵袭力的变化和E-cadherin蛋白的表达。结果 A549细胞在缺氧状态下高侵袭力24h后即受到抑制剂明显抑制，其中以PD98059的作用最显著；E-cadherin蛋白的表达也明显上调。结论 U0126、SB203580、PD98059和LY294002具有抗肿瘤侵袭的作用，具体机制有待于进一步研究。