OBJECTIVE: To evaluate variations in the plasma tissue factor (TF) and urokinase type plasminogen activator (u-PA) system and their relationship with clinical cancer type, pathological classification and metastatic st...OBJECTIVE: To evaluate variations in the plasma tissue factor (TF) and urokinase type plasminogen activator (u-PA) system and their relationship with clinical cancer type, pathological classification and metastatic status in cancer patients. METHODS: Plasma levels of TF and its inhibitor (TFPI), as well as u-PA and its receptor (u-PAR) were measured using ELISA in 76 patients with malignant tumors and 24 patients with benign tumors. RESULTS: Plasma levels of TF and u-PAR in the malignant tumor group were significantly higher than those of the benign tumor group and the normal control. U-PA and u-PAR increased significantly in patients with esophageal and gastric cancer. However, most of these parameters except TFPI did not vary according to pathological classification. A significant elevation was evident in patients with local infiltration, lymph node involvement and distal metastasis, while u-PAR only increased in the latter two categories. CONCLUSIONS: Both the TF and u-PA systems are activated in cancer patients. U-PA and its receptor might prove to be a clinically useful marker for disease progression.展开更多
OBJECTIVE To investigate the expression of urokinase-type plasminogen （uPA）, its inhibitor-1 （PAI-1） mRNA and its protein in human gastric cancer and to find out the relationship among the tumor differentiation, a...OBJECTIVE To investigate the expression of urokinase-type plasminogen （uPA）, its inhibitor-1 （PAI-1） mRNA and its protein in human gastric cancer and to find out the relationship among the tumor differentiation, angiogenesis, and other clinical pathologic factors. METHODS In situ hybridization （ISH） was used to get the uPA, PAI-lmRNA in 110 cases with human gastric cancer in 2-tissue microarray （TMA）. Immunohistochemical staining （S-P method） for uPA, PAI-1 protein and CD34 were performed in the 110 cases in 2 TMA. RESULTS The expression of the uPA, PAI-lmRNA and their protein happened in the cytoplasm of gastric cancer cells were induced by the poor differentiation of the GC, and the expression of uPA had an increasing trend while the expression of the PAI-1 had a decreasing trend. The microvessel density （MVD） had a positive correlation with the clinical stages and the significant relationship with the lymph node metastasis （P 〈 0.05）. The MVD in uPA positive group was significantly higher than those in uPA negative group （P 〈 0.05）. The expression of PAI-1 has no correlation neither with the clinical stages nor the lymph node metastasis. CONCLUSION The uPA play an important role in invasion and metastasis of GC through promoting angiogenesis. Interdicting the secretion and function of the uPA may allow the target therapy against the tumor invasion. As a new high-throughput technology, the tissue microarray is a valuable way to be used in clinical treatment.展开更多
目的研究老年高血压脑出血患者的治疗方法 ,为老年高血压脑出血患者寻找合适、安全的治疗途径。方法利用立体定向穿刺引流治疗年龄>75岁的高血压脑出血患者21例,其中血肿量20～30 ml 5例,30～60 ml 16例。结果所有患者血肿均得到了...目的研究老年高血压脑出血患者的治疗方法 ,为老年高血压脑出血患者寻找合适、安全的治疗途径。方法利用立体定向穿刺引流治疗年龄>75岁的高血压脑出血患者21例,其中血肿量20～30 ml 5例,30～60 ml 16例。结果所有患者血肿均得到了有效清除,术后第1、3天格拉斯哥昏迷评分(GCS)明显升高。术后除1例少量再出血,2例肺炎、1例一过性肾功能障碍外,无其他严重并发症出现。所有患者平均住院时间为13.2 d。术后随访6个月,恢复良好者7例,中度残疾12例,重度残疾2例,无死亡。结论立体定向血肿穿刺抽吸引流微创、安全、有效,能有效减少并发症,并缩短住院时间。展开更多
文摘OBJECTIVE: To evaluate variations in the plasma tissue factor (TF) and urokinase type plasminogen activator (u-PA) system and their relationship with clinical cancer type, pathological classification and metastatic status in cancer patients. METHODS: Plasma levels of TF and its inhibitor (TFPI), as well as u-PA and its receptor (u-PAR) were measured using ELISA in 76 patients with malignant tumors and 24 patients with benign tumors. RESULTS: Plasma levels of TF and u-PAR in the malignant tumor group were significantly higher than those of the benign tumor group and the normal control. U-PA and u-PAR increased significantly in patients with esophageal and gastric cancer. However, most of these parameters except TFPI did not vary according to pathological classification. A significant elevation was evident in patients with local infiltration, lymph node involvement and distal metastasis, while u-PAR only increased in the latter two categories. CONCLUSIONS: Both the TF and u-PA systems are activated in cancer patients. U-PA and its receptor might prove to be a clinically useful marker for disease progression.
基金supported by a grant from Educational Commission of Anhui Province,China(No.kj2007A029).
文摘OBJECTIVE To investigate the expression of urokinase-type plasminogen （uPA）, its inhibitor-1 （PAI-1） mRNA and its protein in human gastric cancer and to find out the relationship among the tumor differentiation, angiogenesis, and other clinical pathologic factors. METHODS In situ hybridization （ISH） was used to get the uPA, PAI-lmRNA in 110 cases with human gastric cancer in 2-tissue microarray （TMA）. Immunohistochemical staining （S-P method） for uPA, PAI-1 protein and CD34 were performed in the 110 cases in 2 TMA. RESULTS The expression of the uPA, PAI-lmRNA and their protein happened in the cytoplasm of gastric cancer cells were induced by the poor differentiation of the GC, and the expression of uPA had an increasing trend while the expression of the PAI-1 had a decreasing trend. The microvessel density （MVD） had a positive correlation with the clinical stages and the significant relationship with the lymph node metastasis （P 〈 0.05）. The MVD in uPA positive group was significantly higher than those in uPA negative group （P 〈 0.05）. The expression of PAI-1 has no correlation neither with the clinical stages nor the lymph node metastasis. CONCLUSION The uPA play an important role in invasion and metastasis of GC through promoting angiogenesis. Interdicting the secretion and function of the uPA may allow the target therapy against the tumor invasion. As a new high-throughput technology, the tissue microarray is a valuable way to be used in clinical treatment.
文摘目的研究老年高血压脑出血患者的治疗方法 ,为老年高血压脑出血患者寻找合适、安全的治疗途径。方法利用立体定向穿刺引流治疗年龄>75岁的高血压脑出血患者21例,其中血肿量20～30 ml 5例,30～60 ml 16例。结果所有患者血肿均得到了有效清除,术后第1、3天格拉斯哥昏迷评分(GCS)明显升高。术后除1例少量再出血,2例肺炎、1例一过性肾功能障碍外,无其他严重并发症出现。所有患者平均住院时间为13.2 d。术后随访6个月,恢复良好者7例,中度残疾12例,重度残疾2例,无死亡。结论立体定向血肿穿刺抽吸引流微创、安全、有效,能有效减少并发症,并缩短住院时间。
