目的 探讨尿液指标对心脏手术后患者并发急性肾损伤（AKI）的早期诊断价值。方法 根据前瞻性研究设计记录心脏手术后患者的一般情况，并分别在术前和术后1、6、24 h检测尿中性粒细胞明胶酶相关脂质运载蛋白（NGAL），计算出尿钠排泄分数...目的 探讨尿液指标对心脏手术后患者并发急性肾损伤（AKI）的早期诊断价值。方法 根据前瞻性研究设计记录心脏手术后患者的一般情况，并分别在术前和术后1、6、24 h检测尿中性粒细胞明胶酶相关脂质运载蛋白（NGAL），计算出尿钠排泄分数（FENa）、尿素排泄分数（FEU）。根据患者病情演变，分为AKI组和非AKI组，将观察指标的变化进行分析。 结果 共纳入76例心脏手术后患者，21例发生AKI，发生率27.6%。AKI组患者年龄、男性比例、急性生理和慢性健康状况评分Ⅱ（APACHEⅡ）、主动脉阻断时间、ICU住院时间均高于非AKI组，AKI组患者术后6 h尿量少于非AKI组（P〈0.05）。AKI组尿NGAL水平在术后24 h显著高于非AKI组；AKI组在术后1、6、24 h FENa均高于非AKI组；AKI组在术后6 h FEU低于非AKI组（P〈0.05）。术后24 h尿NGAL的ROC曲线下面积为1.000，诊断点为36.9 ng/mL，敏感度和特异度均为1.000；术后1 h FENa指标的ROC曲线下面积为0.897，最佳诊断值为1.8，敏感度为 0.851，特异度为0.782；术后6 h FEU的ROC曲线下面积为0.997，最佳诊断值为26.5，敏感度为 0.952，特异度为1.000。结论 术后6 h FEU和24 h 尿NGAL超出诊断值对心脏手术后并发AKI具有早期评估价值，6 h FEU可作为AKI早期诊断指标。展开更多
AIM: To investigate the protective effects and mechanisms of Baicalin and octreotide on renal injury of rats with severe acute pancreatitis (SAP). METHODS: One hundred and eighty SD rats were randomly assigned to the ...AIM: To investigate the protective effects and mechanisms of Baicalin and octreotide on renal injury of rats with severe acute pancreatitis (SAP). METHODS: One hundred and eighty SD rats were randomly assigned to the model group, Baicalin-treated group, octreotide-treated group and sham operation group. The mortality, plasma endotoxin level, contents of blood urea nitrogen (BUN), creatinine (CREA), phospholipase A2 (PLA2), nitrogen monoxide (NO), tumor necrosis factor (TNF)-α, IL-6 and endothelin-1 (ET-1) in serum, expression levels of renal Bax and Bcl-2 protein, apoptotic indexes and pathological changes of kidney were observed at 3, 6 and 12 h after operation. RESULTS: The renal pathological changes were milder in treated group than in model group. The survival at 12 h and renal apoptotic indexes at 6 h were significantly (P < 0.05) higher in treated group than in model group [66.67% vs 100%; 0.00 (0.02)% and 0.00 (0.04)% vs 0.00 (0.00)%, respectively]. The serum CREA content was markedly lower in octreotide-treated group than in model group at 3 h and 6 h (P < 0.01, 29.200 ± 5.710 μmol/L vs 38.400 ± 11.344 μmol/L; P < 0.05, 33.533 ± 10.106 μmol/L vs 45.154 ± 17.435 μmol/L, respectively). The expression level of renal Bax protein was not significantly different between model group and treated groups at all time points. The expression level of renal Bcl-2 protein was lower in Baicalin-treated group than in model group at 6 h [P < 0.001, 0.00 (0.00) grade score vs 3.00 (3.00) grade score]. The Bcl-2 expression level was lower in octreotide-treated group than in model group at 6 h and 12 h [P < 0.05, 0.00 (0.00) grade score vs 3.00 (3.00) grade score; 0.00 (0.00) grade score vs 0.00 (1.25) grade score, respectively]. The serum NO contents were lower in treated groups than in model group at 3 h and 12 h [P < 0.05, 57.50 (22.50) and 52.50 (15.00) μmol/L vs 65.00 (7.50) μmol/L; P < 0.01, 57.50 (27.50) and 45.00 (12.50) μmol/L vs 74.10 (26.15) μmol/L, respectively]. The plasma endotoxin content and serum BUN content (at 6 h and 12 h) were lower in treated groups than in model group. The contents of IL-6, ET-1, TNF-α (at 6 h) and PLA2 (at 6 h and 12 h) were lower in treated groups than in model group [P < 0.001, 3.031 (0.870) and 2.646 (1.373) pg/mL vs 5.437 (1.025) pg/mL; 2.882 (1.392) and 3.076 (1.205) pg/mL vs 6.817 (0.810) pg/mL; 2.832 (0.597) and 2.462 (1.353) pg/mL vs 5.356 (0.747) pg/mL; 16.226 (3.174) and 14.855 (5.747) pg/mL vs 25.625 (7.973) pg/mL; 18.625 (5.780) and 15.185 (1.761) pg/mL vs 24.725 (3.759) pg/mL; 65.10 (27.51) and 47.60 (16.50) pg/mL vs 92.15 (23.12) pg/mL; 67.91 ± 20.61 and 66.86 ± 22.10 U/mL, 63.13 ± 26.31 and 53.63 ± 12.28 U/mL vs 101.46 ± 14.67 and 105.33 ± 18.10 U/mL, respectively]. CONCLUSION: Both Baicalin and octreotide can protect the kidney of rats with severe acute pancreatitis. The therapeutic mechanisms of Baicalin and octreotide might be related to their inhibition of inflammatory mediators and induction of apoptosis. Baicalin might be a promising therapeutic tool for severe acute pancreatitis.展开更多
文摘目的 探讨尿液指标对心脏手术后患者并发急性肾损伤（AKI）的早期诊断价值。方法 根据前瞻性研究设计记录心脏手术后患者的一般情况，并分别在术前和术后1、6、24 h检测尿中性粒细胞明胶酶相关脂质运载蛋白（NGAL），计算出尿钠排泄分数（FENa）、尿素排泄分数（FEU）。根据患者病情演变，分为AKI组和非AKI组，将观察指标的变化进行分析。 结果 共纳入76例心脏手术后患者，21例发生AKI，发生率27.6%。AKI组患者年龄、男性比例、急性生理和慢性健康状况评分Ⅱ（APACHEⅡ）、主动脉阻断时间、ICU住院时间均高于非AKI组，AKI组患者术后6 h尿量少于非AKI组（P〈0.05）。AKI组尿NGAL水平在术后24 h显著高于非AKI组；AKI组在术后1、6、24 h FENa均高于非AKI组；AKI组在术后6 h FEU低于非AKI组（P〈0.05）。术后24 h尿NGAL的ROC曲线下面积为1.000，诊断点为36.9 ng/mL，敏感度和特异度均为1.000；术后1 h FENa指标的ROC曲线下面积为0.897，最佳诊断值为1.8，敏感度为 0.851，特异度为0.782；术后6 h FEU的ROC曲线下面积为0.997，最佳诊断值为26.5，敏感度为 0.952，特异度为1.000。结论 术后6 h FEU和24 h 尿NGAL超出诊断值对心脏手术后并发AKI具有早期评估价值，6 h FEU可作为AKI早期诊断指标。
基金Supported by Technological Foundation Project of Traditional Chinese Medicine Science of Zhejiang Province, No. 2003C130 and No. 2004C142Foundation Project for Medical Science and Technology of Zhejiang Province, No. 2003B134+3 种基金Grave Foundation Project for Technology and Development of Hangzhou, No. 2003123B19Intensive Foundation Project for Technology of Hangzhou, No. 2004Z006Foundation Project for Medical Science and Technology of Hangzhou, No. 2003A004Foundation Project for Technology of Hangzhou, No. 2005224
文摘AIM: To investigate the protective effects and mechanisms of Baicalin and octreotide on renal injury of rats with severe acute pancreatitis (SAP). METHODS: One hundred and eighty SD rats were randomly assigned to the model group, Baicalin-treated group, octreotide-treated group and sham operation group. The mortality, plasma endotoxin level, contents of blood urea nitrogen (BUN), creatinine (CREA), phospholipase A2 (PLA2), nitrogen monoxide (NO), tumor necrosis factor (TNF)-α, IL-6 and endothelin-1 (ET-1) in serum, expression levels of renal Bax and Bcl-2 protein, apoptotic indexes and pathological changes of kidney were observed at 3, 6 and 12 h after operation. RESULTS: The renal pathological changes were milder in treated group than in model group. The survival at 12 h and renal apoptotic indexes at 6 h were significantly (P < 0.05) higher in treated group than in model group [66.67% vs 100%; 0.00 (0.02)% and 0.00 (0.04)% vs 0.00 (0.00)%, respectively]. The serum CREA content was markedly lower in octreotide-treated group than in model group at 3 h and 6 h (P < 0.01, 29.200 ± 5.710 μmol/L vs 38.400 ± 11.344 μmol/L; P < 0.05, 33.533 ± 10.106 μmol/L vs 45.154 ± 17.435 μmol/L, respectively). The expression level of renal Bax protein was not significantly different between model group and treated groups at all time points. The expression level of renal Bcl-2 protein was lower in Baicalin-treated group than in model group at 6 h [P < 0.001, 0.00 (0.00) grade score vs 3.00 (3.00) grade score]. The Bcl-2 expression level was lower in octreotide-treated group than in model group at 6 h and 12 h [P < 0.05, 0.00 (0.00) grade score vs 3.00 (3.00) grade score; 0.00 (0.00) grade score vs 0.00 (1.25) grade score, respectively]. The serum NO contents were lower in treated groups than in model group at 3 h and 12 h [P < 0.05, 57.50 (22.50) and 52.50 (15.00) μmol/L vs 65.00 (7.50) μmol/L; P < 0.01, 57.50 (27.50) and 45.00 (12.50) μmol/L vs 74.10 (26.15) μmol/L, respectively]. The plasma endotoxin content and serum BUN content (at 6 h and 12 h) were lower in treated groups than in model group. The contents of IL-6, ET-1, TNF-α (at 6 h) and PLA2 (at 6 h and 12 h) were lower in treated groups than in model group [P < 0.001, 3.031 (0.870) and 2.646 (1.373) pg/mL vs 5.437 (1.025) pg/mL; 2.882 (1.392) and 3.076 (1.205) pg/mL vs 6.817 (0.810) pg/mL; 2.832 (0.597) and 2.462 (1.353) pg/mL vs 5.356 (0.747) pg/mL; 16.226 (3.174) and 14.855 (5.747) pg/mL vs 25.625 (7.973) pg/mL; 18.625 (5.780) and 15.185 (1.761) pg/mL vs 24.725 (3.759) pg/mL; 65.10 (27.51) and 47.60 (16.50) pg/mL vs 92.15 (23.12) pg/mL; 67.91 ± 20.61 and 66.86 ± 22.10 U/mL, 63.13 ± 26.31 and 53.63 ± 12.28 U/mL vs 101.46 ± 14.67 and 105.33 ± 18.10 U/mL, respectively]. CONCLUSION: Both Baicalin and octreotide can protect the kidney of rats with severe acute pancreatitis. The therapeutic mechanisms of Baicalin and octreotide might be related to their inhibition of inflammatory mediators and induction of apoptosis. Baicalin might be a promising therapeutic tool for severe acute pancreatitis.
