Objective To investigate the expression of urokinase-type plasminogen activator (uPA) mRNA in gastric cancer tissues and cancer-adjacent tissues and the relationship between its expression and biologic behavior of tumor. Methods Fourty-eight cases with gastric cancer were detected for the expression of uPA mRNA by fluorogenic probe quantitative reverse transcription polymerase chain reaction (RTPCR). Results The positive expression rate of uPA mRNA was 83.3%, 25.0%, 93.8% and 62.5% in gastric cancer tissues,cancer-adjacent tissues, gastric cancer tissues with lymph node metastasis and with non-lymph node metastasis respectively. Expression of uPA mRNA was positively related with the invasion depth of gastric cancer. Conclusion Expression of uPA mRNA is significantly increased in gastric cancer and it can be used as an indicator to judge the metastasis and prognosis of tumor.
目的 探討上皮細胞鈣黏蛋白（E-Cadherin）、尿激酶型纖溶酶原激活劑（uPA）表達與乳腺癌的浸潤、淋巴結轉移的關系。 方法 采用免疫組織化學鏈霉菌抗生物素蛋白-過氧化物酶連接法對乳腺纖維腺瘤、乳腺腺病和乳腺癌各40例蠟塊中E-Cadherin、uPA表達進行研究。 結果 乳腺纖維腺瘤、腺病和乳腺癌中E-Cadherin陽性率分別為85.0%、82.5%和20.0%，三者差異有統計學意義（P＜0.05）；E-Cadherin表達陰性患者淋巴結轉移率（90.6%）高于E-Cadherin表達陽性者（25.0%），差異有統計學意義（P＜0.01）。uPA在乳腺纖維腺瘤、腺病均呈陰性表達，在乳腺癌中的陽性率為60.0%，三者差異有統計學意義（P＜0.05）；uPA表達陽性患者淋巴結轉移率（88.5%）顯著高于陰性者（50.0%），兩者的表達差異有統計學意義（P＜0.05）。 結論 E-Cadherin和uPA的表達與乳腺癌的浸潤轉移密切相關，同步檢測其在乳腺癌組織中的表達并綜合分析二者之間的關系，對評價乳腺癌細胞的侵襲轉移能力及預后判斷具有一定價值。uPA在乳腺癌中表達率較高，而且和乳腺癌的生物學特性有關，它對提示預后和開展靶向治療有指導意義。
ObjectiveTo investigate the therapeutic effects of thrombolysis infusion via microcatheter on the treatment of central retinal artery occlusion(CRAO). MethodsUrokinase (UK) was directly infused via ophthalmic artery (OA) by microcatheter (6 patients) or via intravenous (7 patients) to dissolve the thrombus. The patency of the artery was evaluated by fundus fluorescein angiography (FFA), and the effect of fibrinolytic activity on the systemic changes was observed by blood biochemical examination simultaneously. ResultsIn 6 patients in the microcatheter group, 5 had completely and 1 had partly reopened OA on the morrow of UK infusion with the patency rate of 83.33%, while in 7 patients in vein group, 3 completely reopened, 2 partly reopened and 2 obstructed OA were found with the patency rate of 42.86%. The difference between the two groups was significant. No obvious change of index of blood coagulation system was found in catheter group, which had great disparity compared with the vein group.ConclusionUrokinase infusion via microcatheter in CRAO has better therapeutic impact and smaller effect on systemic action. (Chin J Ocul Fundus Dis, 2005,21:16-19)
【摘要】 目的 探討急性腦梗死溶栓治療的療效及安全性。 方法 2004年1月-2009年5月58例急性腦梗死患者，按接受尿激酶治療時已發病時間分為3組，均接受尿激酶150萬U加生理鹽水150 mL靜脈滴注溶栓治療。分別在治療后0、1、3、9 h進行神經功能評價，1、3、7 d進行神經功能評價及復查頭顱CT。 結果 發病3 h內與發病3~6 h內溶栓治療效差異無統計學意義（Pgt;0.05）；發病3 h內、3~6 h內與發病6~9 h尿激酶溶栓治療療效差異均有統計學意義（Plt;0.05）；發病6~9 h尿激酶溶栓治療療效差，多例并發腦出血，安全性差。 結論 發病6 h內的腦梗死患者，只要無禁忌證均應盡快行尿激酶溶栓治療；發病6 h后的腦梗死患者，不宜尿激酶溶栓治療；伴房顫者的溶栓治療因樣本量過小研究無意義，有待進一步研究。【Abstract】 Objective To discuss the efficacy and safety of thrombolytic therapy for acute cerebral infarction. Methods A total of 58 patients with acute cerebral infarction from January 2004 to May 2009 were enrolled in this study. Based on the onset time before accepting urokinase treatment, the patients were divided into three groups. All of them accepted thrombolytic treatment with 1.5 million U of urokinase and 150 ml of saline solution intravenously. Neurological function evaluation was carried out 0, 1, 3, and 9 hours after the treatment. Another neurological function evaluation and skull CT were done 1, 3, and 7 days later, respectively. Results There was no statistical difference between the efficacy of the treatment within 3 hours and between the 3rd hour and the 6th hour after the onset of the disease. However, there was a significant difference between the efficacy within 3 hours and between the 6th and 9th hour, and between the efficacy from the 3rd hour and 6th hour and from the 6th hour and the 9th hour after the onset of the disease. Between the 6th and the 9th hour after the onset, the efficacy and safety were poor with many cases of combined cerebral bleeding. Conclusions For patients within 6 hours after the onset of cerebral infarction, as long as no contraindications exists, thrombolytic therapy should be carried out as soon as possible; 6 hours after the onset, patients should not be treated with thrombolytic therapy. Further study is needed for patients combined with atrial fibrillation due to the small sample size in this study.
Objective To inspect the effects of recombinant staphylokinase (r-Sak) and the changes of fibrinolytic activity in the systemic circulation in the treatment of experimental central retinal artery occlusion (CRAO)． Methods The animal model of CRAO in 15 cats (30 eyes) was set up by laser irradiating a branch of central retinal artery after intravenous injection of 3% rose bengal，and then the arterial thrombi were dissolved by intravenous injection of r-Sak and urokinase (UK)．The pat ency of the arteries was evaluated by FFA．Moreover，the changes of fibrinolitic activity in the blood were examined by phlebotomizing． Results The model of CRAO was successfully set up.Four hours after injection of thrombolysis drugs,the completely reopened proportion in r-Sak group was 100%，while in UK group the proportion was 60%．At the same time， no significant systemic fibinnolytic activation was observed in r-Sak group． Conclusions An experimental CRAO model,which has the similar pathological processes of occlusion of central retinal artery and intra arterial thrombosis as those in clinic，can be set up by using photochemical method，and r-rak is capable of lysing thrombus without significant activation of circulating plasminogen． (Chin J Ocul Fundus Dis，2000，16：71-138)