骨桥蛋白和基质金属蛋白酶-9在胰腺癌中的表达及其临床意义

Objective To investigate the expression and the role of osteopontin(OPN)and matrix metalloproteinase-9(MMP-9)in the invasion and metastasis of pancreatic carcinoma.Methods Human pancreatic cancer cell line MIA PaCa-2 was cultured in vitro.The location of OPN protein in pancreatic tumor cell line was detected by immunofluorescence staining.100 cases of pancreatic cancer and 40 cases of adjacent normal pancreatic tissues were used to analysis.The expressions of OPN and MMP-9 were investigated by immunohistochemistry assay.Results OPN expressed in the cell membrane and cytoplasm,OPN and MMP-9 in pancreatic cancer tissues positive rates were 73.0%(73/100)and 68.0%(68/100),which were higher than that in adjacent normal pancreatic tissues(all P ＜ 0.05).OPN and MMP-9 expression were associated with pancreatic tumor grade,lymph node metastasis and perineural invasion of pancreatic cancer(P ＜ 0.05).OPN and MMP-9 in pancreatic cancer tissues were positively correlated(r,=0.39,P ＜ 0.01).Conclusions OPN and M MP-2 might play an important role in the development of invasion and metastasis of pancreatic carcinoma.OPN and MMP-2 might play synergetic roles in the progression of pancreatic carcinoma.     

地塞米松预处理对大鼠光气吸入性肺损伤基质金属蛋白酶-9表达的影响

目的 探讨地塞米松对大鼠光气吸入性急性肺损伤(ALI)基质金属蛋白酶-9(MMP-9)表达的影响.方法 将SD大鼠随机分为3组:正常对照组(吸入与光气染毒组同等流量的空气)、光气染毒组(吸入8.33 mg/L的光气)、地塞米松预处理组(尾静脉注入2.5 mg/kg地塞米松1 h后,吸入8.33 mg/L的光气).染毒2 h后,收集支气管肺泡灌洗液(BALF)测定中性粒细胞细胞数、蛋白含量和肺湿/干重比(W/D).用放射免疫法测定各组血清和BALF中MMP-9水平.进行肺组织的病理学检查,用免疫组化法和实时定量聚合酶链反应(PCR)测定MMP-9表达的变化.结果 与染毒组比较,预处理组大鼠肺W/D、BALF中中性粒细胞数和蛋白含量明显降低,差异有统计学意义(P＜0.01).与染毒组[血清:(9.439±0.100)μg/L、BALF:(20.640±0.446)μg/L]比较,预处理组MMP-9含量[血清(4.799±0.043)μg/L、BALF:(15.052±0.029)μg/L]明显降低,差异有统计学意义(P＜0.01).与染毒组(2.789±0.282)比较,预处理组MMP-9mRNA的表达量(1.183±0.260)明显降低,差异有统计学意义(P＜0.01).染毒组肺泡壁明显充血、增厚,肺泡壁和肺间质内可见较多白细胞浸润以及肺泡结构破坏;预处理组肺泡结构较为清晰,肺泡壁稍增厚,伴少量炎性细胞浸润.正常对照组大鼠肺、支气管组织中MMP-9蛋白表达呈弱阳性,染毒组MMP-9蛋白表达呈强阳性,预处理组肺、支气管组织中MMP-9蛋白表达明显减弱.结论 地塞米松能有效地保护大鼠光气吸入性ALT,可能通过抑制MMP-9表达而达到肺保护作用.

Abstract：

Objective To investigate the effects of dexamethasone on expression of matrix metalloproteinase-9 (MMP-9) in rats with acute lung injury induced by phosgene. Methods The rats were randomly divided into 3 groups: normal control group that consists of the rats with air exposure, phosgene group that consists of the rats with phosgene exposure and dexamethasone group that consists of the rats with phosgene exposure after 2.5 mg/kg dexamethasone being injected. Wet and dry ratio of the lung (W/D) was calculated, and leukocyte count and total protein content of bronchoalveolar lavage fluid (BALF) were recorded at 2 h after exposure. The concentrations of MMP-9 in the serum and BALF were measured by enzyme-linked immunosorbent assay. The pathologic changes of lung tissues were observed under light microscopy. The immunohistochemistry and the RT-PCR were used to detect the contents of MMP-9 in the lung tissue. Results Compared with phosgene group, the lung W/D, protein content and WBC count in of BALF dexamethasone group was significantly decreased (P＜0.01). MMP-9 levels of the serum and BALF in dexamethasone group were (4.799±0.043) μg/L and (15.052±0.029) μg/L, respectively, which were significantly lower than those [(9.439±0.100) and (20.640±0.446) μg/L] in phosgene group (P＜0.01). Compared with phosgene group (2.789±0.282), the expression level(1.183±0.260) of lung M MP-9 mRNA in dexamethasone group was significantly lower than that in phosgene group (P＜0.01).Histological experimental results showed the marked hyperemia and thickening of alveolar wallsand stroma cells infiltrating and more visible alveolar structure damage of alveolar walls in phosgene group while the alveolar structure and the alveolar walls were clear and slightly thickened with inflammatory cells in dexamethasone group. Immunohistochemical results showed that MMP-9 protein expression levels of lung and brochus tissues in normal control group and dexamethasone group were weakly positive, which in phosgene group were strongly positive. Conclusion Dexamethasone has a beneficial effects on acute lung injury induced by phosgene in rats due to the inhibiting MMP-9.     

地塞米松预处理对大鼠光气吸入性肺损伤基质金属蛋白酶-9表达的影响

Objective To investigate the effects of dexamethasone on expression of matrix metalloproteinase-9 (MMP-9) in rats with acute lung injury induced by phosgene. Methods The rats were randomly divided into 3 groups: normal control group that consists of the rats with air exposure, phosgene group that consists of the rats with phosgene exposure and dexamethasone group that consists of the rats with phosgene exposure after 2.5 mg/kg dexamethasone being injected. Wet and dry ratio of the lung (W/D) was calculated, and leukocyte count and total protein content of bronchoalveolar lavage fluid (BALF) were recorded at 2 h after exposure. The concentrations of MMP-9 in the serum and BALF were measured by enzyme-linked immunosorbent assay. The pathologic changes of lung tissues were observed under light microscopy. The immunohistochemistry and the RT-PCR were used to detect the contents of MMP-9 in the lung tissue. Results Compared with phosgene group, the lung W/D, protein content and WBC count in of BALF dexamethasone group was significantly decreased (P＜0.01). MMP-9 levels of the serum and BALF in dexamethasone group were (4.799±0.043) μg/L and (15.052±0.029) μg/L, respectively, which were significantly lower than those [(9.439±0.100) and (20.640±0.446) μg/L] in phosgene group (P＜0.01). Compared with phosgene group (2.789±0.282), the expression level(1.183±0.260) of lung M MP-9 mRNA in dexamethasone group was significantly lower than that in phosgene group (P＜0.01).Histological experimental results showed the marked hyperemia and thickening of alveolar wallsand stroma cells infiltrating and more visible alveolar structure damage of alveolar walls in phosgene group while the alveolar structure and the alveolar walls were clear and slightly thickened with inflammatory cells in dexamethasone group. Immunohistochemical results showed that MMP-9 protein expression levels of lung and brochus tissues in normal control group and dexamethasone group were weakly positive, which in phosgene group were strongly positive. Conclusion Dexamethasone has a beneficial effects on acute lung injury induced by phosgene in rats due to the inhibiting MMP-9.     

盆腔输卵管病变对体外受精-胚胎移植妊娠结局的影响

目的 探讨盆腔输卵管不同病变对体外受精-胚胎移植(IVF-ET)妊娠结局的影响.方法 将1032例行IVF-ET患者分为盆腔输卵管病变组(605例)和非盆腔输卵管病变组(427例).盆腔输卵管病变组患者再根据输卵管病变部位不同分为输卵管阻塞组(243例)、输卵管切除组(104例)、输卵管造口组(149例)、输卵管积水组(109例);再根据是否合并盆腔病变分为合并盆腔病变组(194例)、非合并盆腔病变组(411例).对各组患者的临床妊娠、异位妊娠、自然流产情况进行回顾性分析.结果 盆腔输卵管病变组异位妊娠率和自然流产率[10.63%(27/254)和9.06%(23/254)]高于非盆腔输卵管病变组[3.27%(5/153)和4.58%(7,153)](P<0.01或<0.05).输卵管切除组异位妊娠率最低[2.17%(1/46)],输卵管造口组最高[22.41%(13/58)],各组比较差异有统计学意义(P<0.01).输卵管造口组和输卵管积水组自然流产率[10.34%(6/58)和15.00%(6/40)]明显高于输卵管阻塞组和输卵管切除组[7.27%(8/110)和6.52%(3/46)](P<0.05).合并盆腔病变组自然流产率[11.54%(9/78)]高于非合并盆腔病变组[7.95%(14/176)](P<0.05).结论 盆腔输卵管病变是发生异位妊娠及自然流产的高危因素,应加强IVF-ET术前对盆腔输卵管情况的评估与治疗.

Abstract：

Objective To evaluate the effect of the pathological changes of the pelvic cavity and fallopian tube on the outcome of in vitro fertilization and embryo transfer(IVF-ET).Method One thousand and thirty-two patients who underwent IVF-ET were divided into tubal and pelvic infertile group(605 cases)and non-tubal and pelvic infertile group(427 cases).The tubal and pelvic infertile group was also divided into salpingemphraxis group(243 cases),tubal resection group(104 cases),fallostomy group(149 cases),tubal dropsy group(109 cages)according to the tubal lesion regions,and combined with pelvic group(194 cases),combined without pelvic group(411 cases).The data of clinical pregnancy,ectopic pregnancy,and abortion was analyzed respectively.Results The ectopic pregnancy and abortion rates in tubal and pelvic infertile group[10.63%(27/254)and 9.06%(23/254)]were higher than those in non-tubal and pelvic infertile group [3.27%(5/153)and 4.58%(7/153)](P<0.01 or<0.05).The ectopic pregnancy rate was the lowest in tubal resection group[2.17%(1/46)],the highest in fallostomy group[22.41%(13/58)],there was significant difference among the groups(P<0.01).The abortion rate in fallostomy group and tubal dropsy group[10.34%(6/58)and 15.00%(6/40)]was higher than that in salpingemphraxis group and tubal resection group [7.27%(8/110)and 6.52%(3/46)],there was significant difference among the groups(P<0.05).The abortion rate in combined with pelvic group[11.54%(9/78)]was higher than that in combined without pelvic group[7.95%(14/176)](P<0.05).Conclusions The pathological changes of the pelvic cavity and fallopian tube are higher risk factors of ectopic pregnancy and abortion occurrence.The assessment and treatment of pelvic cavity and fallopian tube before assisted reproductive treatment cycles should be enhanced.     

环氧合酶-2在乳腺癌组织中的表达及其临床病理意义

目的 研究环氧合酶-2(COX-2)在乳腺癌组织中的表达及其与临床病理因素之间的关系.方法 应用免疫组织化学方法检测60例乳腺癌组织中和20例乳腺正常组织中COX-2的表达情况,并结合临床及病理学资料进行分析.结果 COX-2在乳腺癌组织中阳性表达率为65.0%(39/60),在乳腺正常组织中阳性表达率为10.0%(2/20),两者比较差异有统计学意义(P<0.01);且COX-2高表达状态与乳腺癌TNM分期、淋巴结转移和肿瘤细胞表皮生长因子受体2(C-erbB-2)表达明显相关(P<0.05或<0.01).结论 COX-2在乳腺癌组织中表达显著增高,其表达在乳腺癌的发生、发展中具有重要意义.

Abstract：

Objective To investigate the expression of cyclooxygenase-2(COX-2)in breast cancer tissues,as well as the relationship between COX-2 and the clinicopathological features.Method The expression of COX-2 was detected in 60 cases of breast cancer tissues and 20 cases of breast normal tissues by using immunohistochemistry,and combined with clinicopathological information for analysis.Results The COX-2 expression rate was 65.0%(39/60)in breast cancer tissues and 10.0%(2/20)in breast normal tissues respectively.There was statistic difference between the two(P<0.01).The over expression of COX-2 was significantly correlated with TNM stages,lymphatic metastasis and the expression of epidermal growuth factor receptor-2(C-erbB-2)(P<0.05 or<0.01).Conclusion The expression of COX-2 in breast cancer tissues is significantly higher,which might play a fairly important role in tumorigenesis and progression of breast cancer.     

磷脂酰肌醇3-激酶/蛋白激酶B信号转导通路在苯醌致HL-60细胞增殖过程中的作用

目的 探讨磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt)信号转导通路在苯醌(BQ)致HL-60细胞增殖中的作用.方法 取对数生长期的HL-60细胞,分为对照组(PBS处理细胞)、BQ染毒组(3 μmol/L BQ染毒)、LY294002+BQ染毒组(3μmol/L BQ染毒前加20 μmol/L LY294002),用alamar blue 法检测细胞增殖率,免疫印迹(Western blot)法检测细胞内p-Akt、Akt蛋白的表达,流式细胞仪检测细胞周期情况.结果 BQ染毒组细胞增殖率(185.00%±30.00%)和S、G2期细胞比例(分别为48.23%±1.37%、15.40%±1.21%)均高于对照组(分别为100.00%±0.00%、42.47%±0.45%、5.40%±0.40%),G1期细胞比例(36.37%±0.40%)低于对照组(52.13%±0.75%),差异均有统计学意义(P＜0.05);BQ染毒组细胞内p-Akt蛋白表达量明显高于对照组,差异有统计学意义(P<0.05),Akt表达量与对照组的差异无统计学意义(P＞0.05).LY294002+BQ染毒组细胞增殖率(82.59%±15.00%)和S、G2期细胞比例(分别为42.03%±0.50%、3.87%±0.47%)比BQ染毒组低,G1期细胞比例(54.43%±0.40%)比BQ染毒组高,差异均有统计学意义(P<0.05),细胞内p-Akt蛋白表达量明显低于BQ染毒组,差异有统计学意义(P<0.05);Akt蛋白表达量与BQ染毒组的差异无统计学意义(P>0.05).结论 PI3K/Akt信号转导通路在BQ致HL-60细胞增殖过程中可能起着重要作用.

Abstract：

Objective To explore the effects of phosphatidylinositol 3-kinase/ Serine-threonine kinase (PI3K/Akt) signal pathway on the proliferation of HL-60 cells exposed to benzoquinone (BQ). Methods HL-60 cells were divided into 3 groups: control group (treated with PBS), BQ group (treated with 3 μmol/L BQ) and LY294002 plus BQ group (treated with 20 μmol/L LY294002 plus 3 μmol/L BQ). The cell proliferation was measured with alamar blue dye assay. Western blot assay was used to detect the expression of p-Akt and Akt proteins and flow cytometer was used to observe the cell cycle. Results The cell proliferation rate and the cell proportion in the S, G2 phase of BQ group were 185.00%±30.00%, 48.23%±1.37% and 15.40%±1.21%, respectively, which were significantly higher than those ( 100.00%±0.00%, 42.47%±0.45% and 5.40%±0.40%) of control group (P<0.05 ). But the cell proportion rate (36.37%±0.40% ) in the G1 phase in BQ group was significantly lower than that (52.13%±0.75% ) in control group (P<0.05). The expression level of p-Akt protein in BQ group was significantly higher than that in control group (P<0.05). The cell proliferation rate and the cell proportion in the S, G2 phase of LY294002 plus BQ group were 82.59%±15.00%, 42.03%±0.50% and 3.87%± 0.47%, respectively, which were significantly lower than those of BQ group (P<0.05). But the cell proportion rate (54.43%±0.40%) in the G1 phase in LY294002 plus BQ group was significantly higher than that in BQ group (P<0.05 ). Conclusion The PI3K/Akt signal pathway may play an important role in the proliferation of HL-60 cells exposed to BQ.     

慢性胃炎与胃癌组织中微血管密度和黏附分子表达的对比研究

目的 探讨慢性胃炎与胃癌组织中微血管密度、黏附分子的表达及对比意义.方法 选取56例慢性浅表性胃炎患者(慢性浅表性胃炎组)、55例胃癌无淋巴结转移患者(胃癌无淋巴结转移组),57例胃癌有淋巴结转移患者(胃癌有淋巴结转移组)的病理组织蜡块,用免疫组织化学Envision法显示微血管密度CD34和细胞黏附分子Syndecan-1的表达情况,112例胃癌患者中高、中分化47例,低分化65例.结果 CD14表达以微血管密度计算:慢性浅表性胃炎组为(13 ± 10)个/高倍镜视野(HP),胃癌无淋巴结转移组为(27 ± 11)个/HP;胃癌有淋巴结转移组为(28 ±10)个/HP.慢性浅表性胃炎组与胃癌无淋巴结转移组及胃癌有淋巴结转移组比较差异有统计学意义(t=7.044、7.908,P＜0.05),胃癌无淋巴结转移组与胃癌有淋巴结转移组比较差异无统计学意义(t=0.506,P＞0.05.慢性浅表性胃炎组、胃癌无淋巴结转移组、胃癌有淋巴结转移组Syndecan-1阳性表达率分别为96.43%(54/56)、45.45%(25/55)、24.56%(14/57),慢性浅表性胃炎组与胃癌无淋巴结转移组及胃癌有淋巴结转移组比较差异有统计学意义(X2=163.560、17.197,P＜0.01).胃癌无淋巴结转移组与胃癌有淋巴结转移组比较差异有统计学意义(x2=5.340,P＜0.05).结论 微血管密度增加与胃癌的发生有关;细胞黏附分子syndecan-1表达下调与胃癌的发生、发展有关,并可能进一步促进胃癌转移,检测微血管密度CD34及细胞黏附分子Syndecan-1的表达变化情况有助于胃癌的诊断及预后判断.

Abstract：

Objective To investigate the clinical significance of the expression of microvessel density and adhesion molecules in the tissue of chronic gastritis and gastric cancer. Methods Fifty-six patients with chronic superficial gastritis (chronic superficial gastritis group), 55 cases of gastric cancer without lymph node metastasis (gastric cancer without lymph node metastasis group) and 57 patients with gastric cancer and lymph node metastasis (gastric cancer with lymph node metastasis group) were included in this study. Gastric pathology paraffin blocks was studied using immunohistochemical Envision method. Microvessel density CD34 and cell adhesion molecule Syndecan-1 expression was examined. In 112 gastric cancer patients, 47 patients were highly differentiated, and 65 patients were poorly differentiated. Results Microvessel density CD34 results:in chronic superficial gastritis group was (13 ± 10)/HP,in gastric cancer without lymph node metastasis group was (27 ± 11 VHP, in gastric cancer with lymph node metastasis group was (28 ± 10)/HP. There were significant differences between chronic superficial gastritis group and gastric cancer without lymph node metastasis group,and between chronic superficial gastritis group and gastric cancer with lymph node metastasis group (t = 7.044,7.908, P ＜0.05), but there was no significant difference between gastric cancer without lymph node metastasis group and gastric cancer with lymph node metastasis group (t = 0.506,P ＞ 0.05). In chronic superficial gastritis group, gastric cancer without lymph node metastasis group and gastric cancer with lymph node metastasis group, Syndecan-1 positive expression ratewas 96.43%(54/56),45.45%(25/55),24.56%(14/57),and there was significant difference between chronic superficial gastritis group and gastric cancer without lymph node metastasis group,and between chronic superficial gastritis group and gastric cancer with lymph node metastasis group (x2 = 163.560,17.197,P＜ 0.01). There was significant difference between gastric cancer without lymph node metastasis group and gastric cancer with lymph node metastasis group (x2 = 5.340, P ＜ 0.05). Conclusions Microvessel density is related with the occurrence of gastric cancer;adhesion molecule Syndecan-1 expression reduces the incidence of gastric cancer development, and might further promote the metastasis of gastric cancer. Detecting the expression changes of microvessel density CD34 and cell adhesion molecule Syndecan-1 facilitates the diagnosis and prognosis of gastric cancer.     

血清高迁移率族蛋白1水平与急性有机磷农药中毒的相关性探讨

目的 探讨急性有机磷农药中毒(AOPP)与血清高迁移率族蛋白1(HMGBl)的相关性.方法 采用蛋白质免疫印迹检测116例AOPP患者及40例健康体检者(健康对照组)HMGB1水平,按病情严重程度将AOPP患者分为轻度组(40例)、中度组(39例)、重度组(37例),再将重度组分为多器官功能不全综合征(MODS)组(20例)和非MODS组(17例),比较各组血清胆碱酯酶(CHE)、HMGB1水平.结果 AOPP患者中重度组血清HMGB1吸光度值为(2.91±0.12),显著高于中度组(2.15±0.17)、轻度组(1.16±0.29)和健康对照组(0.84±0.30),差异有统计学意义(P＜0.01),中度组显著高于轻度组和健康对照组(P＜0.01),轻度组显著高于健康对照组(P＜0.05).重度组中,MODS组血清HMGB1吸光度值显著高于非MODS组(P＜0.01),而CHE两组比较差异无统计学意义(P＞0.05).结论 AOPP患者病情严重程度与血清HMGB1水平明显相关,血清HMGB1水平可作为评价AOPP患者病情严重程度的指标之一.

Abstract：

Objective To study the correlation between the serum high mobility group protein B1 (HMGB1)and the acute organophosphorus pesticide poisoning(AOPP). Methods The serum HMGB1 levels of the 116 patients with AOPP(AOPP group)and 40 healthy adults(control group)were detected by immunoblotting method. According to illness severity, AOPP group was divided into mild group(40 cases),moderate group(39 cases)and severe group(37 cases), and severe group was divided into multiorgan dysfunction syndrome(MODS)group(20 cases)and no MODS group(17 cases). The serum levels of CHE,HMGB1 were compared. Results The absorbance of HMGB1 in severe group(2.91±0.12)was significantly higher than that in moderate group(2.15±0.17), mild group(1.16 ± 0.29)and control group (0.84±0.30)(P＜0.01).The absorbance of HMGB1 in moderate group was significantly higher than that in mild group and control group(P＜0.01). The absorbance of HMGB1 in mild group was significantly higher than that in control group(P＜0.05). The absorbance of HMGB1 in MODS group was significantly higher than that in no MODS group(P＜0.01),but the absorbance of CHE had no significant difference between two groups(P＞0.05). Conclusions The degree of AOPP has notable correlation with the level of serum HMGB1. The level of serum HMGB1 is an useful index for evaluating the degree of AOPP.     

血栓前体蛋白在急性缺血性脑血管病早期诊断中的价值

Objective To study the value of thromhus precursor protein(TpP)in early diagnosis of acute ischemic cerebrovascular disease.Methods The patients who showed completely or partly anterior circulation infarcts syndrome and were within 6 hours from onset on admission were observed dynamically.All patients were divided into thrombotic cerebral infarction(TCI)group(40 cases),transient ischemic attack (TIA)group(42 cases), and lacunar infarction(LI)group(37 cases).Concentrations of TpP in plasma obtained from three groups on admission were detected by enzyme linked immunosorbent assay(ELISA),then were compared with each other.The diagnostic value of plasma TpP to TCI within 6 hours from onset was analyzed with ROC curve.Results The level of TpP in TCI,TIA and LI group was(24.43±3.21),(15.51±2.65)and(13.52±5.45)mg/L respectively,and was significantly higher than that of healthy people (3.9±2.5)mg/L(P<0.01).The level of TpP was significantly higher in TCI group than that in TIA and LI group(P<0.01).The level of TpP was significantly higher in TIA group than that in LI group(P<0.01).The area under ROC curve for TpP to diagnose TCI was 0.979±0.013(P<0.01).The level of TpP on optimal cutoff was 19.1 mg/L.When the level of TpP was over 19.1 mg/L,TCI was determined with 95% sensitivity and 96%specificity, sum of which was largest of all.Conclusion The level of TpP can differentiate TCI from TIA and LI within 6 hours from onset.     

血栓前体蛋白在急性缺血性脑血管病早期诊断中的价值

Objective To study the value of thromhus precursor protein(TpP)in early diagnosis of acute ischemic cerebrovascular disease.Methods The patients who showed completely or partly anterior circulation infarcts syndrome and were within 6 hours from onset on admission were observed dynamically.All patients were divided into thrombotic cerebral infarction(TCI)group(40 cases),transient ischemic attack (TIA)group(42 cases), and lacunar infarction(LI)group(37 cases).Concentrations of TpP in plasma obtained from three groups on admission were detected by enzyme linked immunosorbent assay(ELISA),then were compared with each other.The diagnostic value of plasma TpP to TCI within 6 hours from onset was analyzed with ROC curve.Results The level of TpP in TCI,TIA and LI group was(24.43±3.21),(15.51±2.65)and(13.52±5.45)mg/L respectively,and was significantly higher than that of healthy people (3.9±2.5)mg/L(P<0.01).The level of TpP was significantly higher in TCI group than that in TIA and LI group(P<0.01).The level of TpP was significantly higher in TIA group than that in LI group(P<0.01).The area under ROC curve for TpP to diagnose TCI was 0.979±0.013(P<0.01).The level of TpP on optimal cutoff was 19.1 mg/L.When the level of TpP was over 19.1 mg/L,TCI was determined with 95% sensitivity and 96%specificity, sum of which was largest of all.Conclusion The level of TpP can differentiate TCI from TIA and LI within 6 hours from onset.     

survivin、p504和p63蛋白在前列腺病变组织中的表达及意义

目的研究p504S、p63、survivin蛋白在前列腺病变组织中的表达及生物学意义,并探讨其相关性。方法采用免疫组化SP法对50例前列腺癌(PCa)、15例良性前列腺增生(BPH)组织中p504S、p63、survivin进行联合检测。结果15例BPH组织的p63阳性表达率为100%(15/15),p504S、survivin染色皆呈阴性;50例PCa组织的p504S的阳性表达率为94%(47/50),survivin阳性表达率为70%(35/50),p504S阳性强度表达明显高于survivin,p63阳性表达率为6%(3/50);三例Pca的p63阳性表达中二例为转移癌伴复发、一例为复发癌,且p504S、survivin均呈阳性表达。同时其survivin阳性强度表达不仅高于p504S阳性强度,而且高于其他PCa的阳性强度。三种蛋白在BPH、PCa组织中的阳性表达率存在显著差异(P=0.000)。结论p63阴性表达、p504阳性表达是诊断前列腺癌的重要指标,而survivin阳性表达趋势可能在鉴别转移癌或预后具有重要意义,因此,p63、p504S和survivin联合检测可提高前列腺癌诊断的准确率。     

MMP-9及TIMP-1在子宫颈鳞癌组织中的表达及临床意义

目的:探讨基质金属蛋白酶9(MMP-9)及基质金属蛋白酶组织抑制因子1(TIMP-1)在宫颈鳞癌组织中的表达,及与宫颈癌临床病理特征的关系。方法:采用免疫组织化学MaxvisioTM法,检测46例宫颈鳞癌,34例宫颈原位癌(CINⅢ)和20例癌旁正常宫颈上皮(NCE)中MMP-9及其抑制因子TIMP-1的表达,分析其表达与宫颈鳞癌的临床分期,病理类型及有无淋巴结转移的关系。结果:MMP-9在宫颈鳞癌,原位癌,NCE中的阳性表达率分别为71.7%,70.6%,25.0%;TIMP-1为54.3%,73.5%,20.0%。MMP-9在NCE组与鳞癌组及原位癌组相比差异有统计学意义(P<0.01),TIMP-1在NCE组与鳞癌组及原位癌组相比差异有统计学意义(P<0.01)。MMP-9和TIMP-1的阳性表达率与临床分期和病理类型均无明显相关性(P>0.05)。MMP-9在淋巴结转移阳性组的阳性表达率明显高于阴性组(P<0.01),而TIMP-1未发现此现象。MMP-9和TIMP-1在宫颈鳞癌中的表达呈负相关(rs=-0.381,P<0.01)。结论:MMP-9在宫颈癌组织中表达水平的上调和TIMP-1的相对弱表达在宫颈鳞癌浸润和转移中起重要的作用。     

乳腺癌中HSG和MMP-2/MMP-9与MVD的关系

目的:探讨乳腺癌组织中新的增殖抑制基因(HSG)和基质金属蛋白酶-2、9(MMP-2,9)的表达与微血管密度(MVD)的关系。方法:应用免疫组化方法检测唐山市工人医院60例乳腺癌标本和20例正常乳腺组织中HSG和MMP-2/MMP-9的表达,用CD34标记乳腺癌组织中的微血管,采用图像分析进行MVD测定。结果:在60例乳腺癌组织中HSG低表达,MVD在HSG阳性表达组低于阴性表达组(P<0.05);MMP-2/MMP-9在乳腺癌组织中高表达,MVD在MMP-2/MMP-9阳性表达组高于阴性表达组(P<0.05);另外,在乳腺癌组织中MVD的表达与肿瘤大小和腋窝淋巴结转移有关(P<0.05)。结论:HSG在某种程度上可以抑制乳腺癌的MVD生成,降低乳腺癌的转移率,而MMP-2/MMP-9可促进乳腺癌组织中MVD的生成,并参与乳腺癌的浸润和转移。联合检测HSG和MMP-2/MMP-9与MVD的表达有利于更好地判断乳腺癌的进展及预后。     

18F-FDG PET/CT显像联合血清学指标在前列腺癌原发灶诊断及骨转移评估中的价值研究

目的:探讨18F-氟代脱氧葡萄糖(18F-FDG)PET/CT显像和前列腺血清学指标检测在鉴别前列腺癌(PCa)与前列腺增生(BPH)及是否合并骨转移中的价值。方法:选取在医院就诊的因怀疑前列腺恶性肿瘤而行穿刺活检的132例患者,确诊后将其分别纳入PCa组(92例)和BPH组(40例);另将PCa组患者分为PCa骨转移组(67例)和非骨转移组(25例)。分析PCa组和BPH组患者、PCa骨转移组和非骨转移组患者的18F-FDG PET/CT最大标准摄取值(SUVmax)与血清前列腺特异性抗原(PSA)检测结果,比较组间前列腺SUVmax及血液中总PSA(T-PSA)、游离PSA(f-PSA)、f/T-PSA、PSA密度(PSAD)、(f/T-PSA)/PSAD水平的差异,并采用受试者工作特征(ROC)曲线下面积(AUC)分析各指标对PCa骨转移的诊断价值。结果:除f/T-PSA指标外,PCa组患者原发病灶SUVmax与血液中各肿瘤标记物水平均明显高于BPH组(t=11.10,t=13.80,13.68,t=10.77,t=-5.98;P=0.05);PCa骨转移组患者PSAD与(f/T)/PSAD水平明显高于非骨转移组(t=2.186,t=-3.183;P<0.05),前列腺原发灶(f/T)/PSAD和PSAD的AUC分别为0.734和0.704,(f/T)/PSAD的AUC大于PSAD。结论:SUVmax值、T-PSA、f-PSA、PSAD和(f/T)/PSAD能很好鉴别PCa与BPH;PSAD和(f/T)/PSAD能提高PCa骨转移诊断的敏感性和特异性,且(f/T)/PSAD的诊断价值更高。     

基质金属蛋白酶-9表达与胃癌侵袭和转移的关系

目的：观察胃癌组织中基质金属蛋白酶9（mmp-9）的表达与侵袭程度和淋巴结转移的关系。方法：应用免疫组化S-19法检测67例胃癌组织中mmp-9的表达。结果：mmp-9表达强度与早期胃癌及进展期胃癌的病理分期显著相关（P〈0．01），与淋巴结有无转移显著相关（P〈0．01）。结论：ppm-9表达强度与胃癌分期以及有无淋巴结转移有显著相关性，是判断胃癌分期和转移有价值的指标。     

前列腺上皮肉瘤的PSAD与前列腺癌比较

本文报告经病理和免疫组化确诊的前列腺癌（PCa）57例,前列腺上皮肉瘤（PIN）54例和前列腺增生104例,比较各组的前列腺体积（PV）,血清前列腺特异性抗原（PSA）和PSA密度（PSAD）。结果显示PIN与BPH的PSA、、PV和PSAD差异不明显（P＞0．05）,但与PCa组差异显著（P＜0.01）。以PSA10ng／ml和PSAD0.2为界值,评价PCa组,其敏感性备为49％和42％,特异性79％和84％,准确性64％和63％。     

基质金属蛋白酶-9及基质金属蛋白酶组织抑制物-1与卵巢上皮性癌血管生成的关系

目的:探讨基质金属蛋白酶-9(MMP-9)及基质金属蛋白酶组织抑制物-1(TIMP-1)在卵巢上皮性癌血管生成中的作用。方法:采用免疫组织化学SP法检测45例卵巢上皮性癌组织中MMP-9和TIMP-1的表达,并检测其中微血管密度(MVD,CD34标记)。结果:卵巢癌组织和卵巢良性肿瘤中MMP-9阳性表达率明显高于正常卵巢组织(P<0.01),而TIMP-1未见升高(P>0.05),并且TIMP-1在卵巢癌组织中的阳性表达率显著低于MMP-9(P<0.01)。MMP-9在卵巢癌组织中表达与MVD显著正相关(r=0.286,P<0.05),而TIMP-1与MVD无相关性(r=0.194,P>0.05)。卵巢癌中MMP-9表达高于TIMP-1者,其MVD显著高于MMP-9表达低于TIMP-1者(P<0.05)。结论:MMP-9和TIMP-1表达失衡可能在卵巢上皮性癌血管生成中起重要作用,MMP-9表达增强而TIMP-1表达降低,其血管生成能力可能显著增强,但并非唯一决定因素。检测卵巢上皮性癌中MMP-9和TIMP-1表达对进一步了解卵巢上皮性癌局部血管生成情况有一定应用价值。     

基质金属蛋白酶-9、Ⅳ型胶原、CD34在卵巢上皮性肿瘤中的表达及意义

目的 探讨基质金属蛋白酶(MMP)-9、Ⅳ型胶原、CD34在卵巢上皮性肿瘤中的表达及意义.方法 卵巢上皮性肿瘤患者82例,其中卵巢恶性上皮性肿瘤48例,卵巢交界性上皮性肿瘤23例,卵巢良性上皮性肿瘤11例.采用免疫组化染色方法,检测MMP-9、Ⅳ型胶原和CD34在肿瘤组织中的表达情况.结果 MMP-9的表达强度随肿瘤恶性程度增加而增强(F=39.306,P<0.01).CD34的表达亦随肿瘤恶性程度增加而增强[卵巢良性上皮性肿瘤为(17.18±5.64)%,卵巢交界性上皮性肿瘤为(29.76±7.18)%,高分化卵巢恶性上皮性肿瘤为(57.20±8.55)%,中分化卵巢恶性上皮性肿瘤为(71.20±8.48)%,低分化卵巢恶性上皮性肿瘤为(90.38 ±20.03)%](F=100.072,P<0.01).Ⅳ型胶原在卵巢恶性上皮性肿瘤中的表达强度低于在卵巢交界性上皮性肿瘤和卵巢良性上皮性肿瘤中的表达强度(F=11.554,P<0.01). MMP-9表达与CD34表达、Ⅳ型胶原缺失表达均呈正相关(r值分别为0.802和0.796,P<0.01).结论 MMP-9、CD34表达随着卵巢上皮性肿瘤恶性程度的增加而增强,Ⅳ型胶原的表达在卵巢恶性上皮性肿瘤中明显减少.MMP-9表达与CD34表达、Ⅳ型胶原缺失表达呈正相关.通过联合检测MMP-9、CD34、Ⅳ型胶原在卵巢上皮性肿瘤中的表达对判断其恶性程度具有重要的临床意义.     

膀胱残余尿水平与良性前列腺增生患者肾功能和尿路感染的关系

目的 探讨膀胱残余尿水平和良性前列腺增生(BPH)患者肾功能及尿路感染的关系.方法 回顾性分析接受手术治疗并经病理证实为单纯BPH的病例81例,分成A组53例(残余尿量<60ml),B组18例(残余尿量60～200ml),C组10例(残余尿量200ml).对三组患者的血尿素氮、血肌酐、尿细菌培养结果作对照研究.结果 A、B、C组的血尿素氮、血肌酐分别为(5.90±3.01)mmol/L、(90.13±25.08)μmol/L和(7.85±3.53)mmol/L、(128.36±30.25)μmol/L以及(10.57±4.01)mmol/L、(152.11±36.68)μmol/L.C组血尿素氮、血肌酐水平明显高于A组(P<0.01)和B组(P<0.05),而B组亦明显高于A组(P<0.05).A、B、C组尿路感染的发生率分别为28.3%(15/53)、44.4%(8118)、50.0%(5/10).A组与B、C组比较差异有统计学意义(P<0.05),而B组和C组比较差异无统计学意义(P0.05).大肠埃希菌仍为尿路感染的主要病原菌.结论 随着膀胱残余尿量的增多,BPH患者肾功能损害有加重趋势.当残余尿量≥60 ml时则明显增加了尿路感染的发生率.     

基于Cox风险回归分析的相关因素对判断Ⅰa~Ⅱb期宫颈癌5年预后的临床价值

目的分析影响宫颈癌患者预后的相关因素,为临床诊治提供参考依据。方法选择2013年3月—2016年1月浙江中医药大学附属湖州中医院收治的宫颈癌患者80例,根据第3年生存状况分为复发组与未复发组,并进一步分析两组患者临床病理资料的差异性。建立单因素和多因素Cox模型,分析影响宫颈癌患者生存时间的独立风险因素。根据患者5年生存状况将其分为生存组、死亡组,并比较两组患者微血管密度(MVD)、血清鳞状细胞癌抗原(SCC-Ag)、基质金属蛋白酶-9(MMP-9)、T细胞免疫球蛋白黏蛋白分子4(Tim-4)、程序性死亡配体-1(PD-L1)水平。结果复发组患者在宫颈癌国际妇产科联盟(FIGO)分期、组织分级、颈管受累、淋巴结转移及宫旁浸润方面与未复发组相比,差异均有统计学意义(均P<0.05)。单因素分析结果显示,绝经状态、FIGO分期、颈管受累、宫旁浸润及淋巴结转移与宫颈癌患者预后具有相关性(均P<0.05);患者年龄、肿瘤大小、组织分级、肌层浸润、神经侵犯、术后放疗及术后化疗与宫颈癌患者预后无相关性(均P>0.05)。生存组MVD、SCC-Ag、MMP-9、Tim-4及PD-L1分别为:(49.87±9.33)个/mm²、(0.75±0.31)ng/ml、(810.34±177.7)ng/ml、(14.37±6.26)ng/ml及(3.91±1.35)%水平显著低于死亡组(58.58±10.13)个/mm²、(9.16±3.33)ng/ml、(929.14±193.06)ng/ml、(18.80±9.21)ng/ml及(10.02±3.66)%,差异均有统计学意义(均P<0.05)。FIGO分期、颈管受累、淋巴结转移、MVD、SCC-Ag、MMP-9、Tim-4及PD-L1水平均可独立影响宫颈癌患者生存时间。模型的验证结果与预测结果相似,且构建的风险模型的真实性和可靠性较高。结论FIGO分期、颈管受累、淋巴结转移、MVD、SCC-Ag、MMP-9、Tim-4及PD-L1水平均可作为宫颈癌患者生存时间的独立影响因素。