BACKGROUND: Traditional Chinese medicine is a potent agent in the management of clinical and experimental acute pancreatitis (AP), but the molecular mechanism of its the- rapeutic action is unclear. Numerous experimen...BACKGROUND: Traditional Chinese medicine is a potent agent in the management of clinical and experimental acute pancreatitis (AP), but the molecular mechanism of its the- rapeutic action is unclear. Numerous experimental and clinical studies have shown that platelet endothelial cell ad- hesion molecule-1 (PECAM-1) is pivotal to leukocyte re- cruitment, which results in microcirculatory injury during inflammation, but its role in acute pancreatitis is poorly un- derstood. We investigated the effects of a compound of tra- ditional Chinese medicine pancreatitis-1 (TCMP-1) on the changes of platelet endothelial cell adhesion molecule-1 (PECAM-1) expression on polymorphonuclear leukocytes (PMNs) in acute edematous pancreatitis (AEP). METHODS: The model of acute pancreatitis was estab- lished by subcutaneous injection of caerulein, and TCMP-1 treated groups were given TCMP-1 by catheterization from mouth to stomach (20 ml/kg) immediately after first time subcutaneous injection of caerulein. The changes of expres- sion of PECAM-1 on leukocytes from the blood of the splenic vein and inferior vena cava were determined by flow cytometry. RESULTS: In the AEP group, expression of PECAM-1 on PMNs was not significantly different between pancreatic microcirculation and systemic circulation at AEP2h and AEP4h time point. Then from AEP4h time point to AEP8h time point, expression of PECAM-1 was up-regulated in systemic circulation while it was down-regulated in pancre- atic microcirculation and was significantly different be- tween pancreatic microcirculation and systemic circulation at AEP8h time point (P<0.05). In the TCMP-1 treated group, compared with the AEP group, expression of PE-CAM-1 on PMNs decreased in different levels between pan- creatic microcirculation and systemic circulation and was of significant difference at AEP8h time point (P <0.05). CONCLUSION: Inhibition of PECAM-1 expression on PMNs may prevent PMNs from transmigration through the endo- thelium and may be one of the treatment mechanisms of TCMP-1 decoction on AEP.展开更多
BACKGROUND:Platelet endothelial cell adhesion molecule-1(PECAM-1),also known as CD31,is mainly distributed in vascular endothelial cells.Studies have shown that PECAM-1 is a very significant indicator of angiogenesis,...BACKGROUND:Platelet endothelial cell adhesion molecule-1(PECAM-1),also known as CD31,is mainly distributed in vascular endothelial cells.Studies have shown that PECAM-1 is a very significant indicator of angiogenesis,and has been used as an indicator for vascular endothelial cells.The present study aimed to explore the relationship between the expression of PECAM-1 and the degree of acute lung injury(ALI) and fibrosis in paraquat(PQ) induced lung injury in rabbits.METHODS:Thirty-six adult New Zealand rabbits were randomly divided into three groups(12rabbits in each group) according to PQ dosage:8 mg/kg(group A),16 mg/kg(group B),and 32 mg/kg(group C).After PQ infusion,the rabbits were monitored for 7 days and then euthanized.The lungs were removed for histological evaluation.Masson staining was used to determine the degree of lung fibrosis(LF),and semi-quantitative immune-histochemistry analysis to determine the expression of PECAM-1.Pearson's product-moment correlation analysis was performed to evaluate the relationship between the expression of PECAM-1 and the extent of lung injuries expressed by ALI score and degree of LF.RESULTS:Rabbits in the three groups showed apparent poisoning.The rabbits survived longer in group A than in groups B and C(6.47±0.99 days vs.6.09±1.04 days vs.4.77±2.04 days)(P<0.05).ALI score was lower in group A than in groups B and C(8.33±1.03 vs.9.83±1.17 vs.11.50±1.38)(P<0.05),and there was statistically significant difference between group B and group C(P=0.03).LF was slighter in group A than in groups B and C(31.09%±2.05%vs.34.37%±1.62%vs.36.54%±0.44%)(P<0.05),and there was statistically significant difference between group B and group C(P=0.026).The PEACAM-1 expression was higher in group A than in groups B and C(20.31%±0.70%vs.19.34%±0.68%vs.18.37%±0.46%)(P<0.05),and there was statistically significant difference between group B and group C(P=0.017).Pearson's correlation analysis showed that the expression of PECAM-1 was negatively correlated to both ALI score(Coe=-0.732,P=0.001)and degree of LF(Coe=-0.779,P<0.001).CONCLUSIONS:The PECAM-1 expression significantly decreases in New Zealand rabbits after PQ poisoning,and the decrease is dose-dependent.The PECAM-1 expression is negatively correlated with ALI score and LF,showing a significant role in the development of lung injuries induced by PQ.展开更多
目的 探讨血清可溶性晚期糖基化终末产物受体(soluble receptor for advanced glycation end products,sRAGE)联合内皮细胞特异性分子-1(endothelial cell specific molecules-1,ESM-1)对重症急性胰腺炎(severe acute pancreatitis,SAP...目的 探讨血清可溶性晚期糖基化终末产物受体(soluble receptor for advanced glycation end products,sRAGE)联合内皮细胞特异性分子-1(endothelial cell specific molecules-1,ESM-1)对重症急性胰腺炎(severe acute pancreatitis,SAP)合并应激性高血糖患者预后的预测价值。方法 选取2021年7月至2023年1月临汾市中心医院重症医学科的SAP合并应激性高血糖患者105例,根据患者的预后(对症治疗后28 d生存情况)分为死亡组(39例)和存活组(66例)。分析SAP合并应激性高血糖患者预后的影响因素及血清sRAGE联合ESM-1对患者预后的预测价值。结果 105例患者中男61例、女44例;年龄22~69岁,平均(47.6±8.9)岁。多因素logistic回归分析结果显示,多个器官功能障碍(OR=4.845,95%CI:2.166~8.130,P=0.030)、急性生理和慢性健康评分Ⅱ得分越高(OR=1.872,95%CI:1.207~2.902,P=0.005)、24 h随机空腹血糖越高(OR=1.381,95%CI:1.094~1.743,P=0.007)、sRAGE水平越高(OR=1.017,95%CI:1.007~1.027,P=0.001)、ESM-1水平越高(OR=1.074,95%CI:1.027~1.123,P=0.002)的SAP合并应激性高血糖患者更容易死亡。ROC曲线分析结果显示,血清sRAGE联合ESM-1检测预测SAP合并应激性高血糖患者死亡的AUC为0.882(95%CI:0.804~0.936,P<0.001),血清sRAGE和ESM-1单独预测的AUC分别为0.784(95%CI:0.693~0.859,P<0.001)和0.780(95%CI:0.689~0.855,P<0.001)。结论 SAP合并应激性高血糖患者的血清sRAGE、ESM-1浓度升高与不良预后有关,血清sRAGE联合ESM-1检测对SAP合并应激性高血糖患者预后的预测价值较高。展开更多
Objective:To study the correlation of PECAM-1 gene C373G locus polymorphism with endothelial injury and placental pathological damage in patients with preeclampsia.Methods:Pregnant women with preeclampsia and healthy ...Objective:To study the correlation of PECAM-1 gene C373G locus polymorphism with endothelial injury and placental pathological damage in patients with preeclampsia.Methods:Pregnant women with preeclampsia and healthy pregnant women delivering in Obstetrics Department of Yibin Second People's Hospital between May 2014 and September 2016 were selected and enrolled in PE group and control group respectively. Peripheral blood was collected to determine PECAM-1 gene C373G polymorphism as well as the contents of endothelial injury molecules sEng, PAR-1, sFlt-1 and ET-1;placenta tissue was collected to determine the contents of pathological damage molecules Gadd45 , TIMP2, Fas, Apaf-1 and caspase-3.Results:PECAM-1 gene C373G locus GC and GG genotype constituent ratio and allele G constituent ratio in peripheral blood of PE group were significantly higher than those of control group while CC genotype constituent ratio and allele C constituent ratio were significantly lower than those of control group. sFlt-1, sEng, PAR-1 and ET-1 contents in serum as well as Gadd45 , TIMP2, Fas, Apaf-1 and caspase-3 contents in placenta of PE group were significantly higher than those of control group;sFlt-1, sEng, PAR-1 and ET-1 contents in serum as well as Gadd45 , TIMP2, Fas, Apaf-1 and caspase-3 contents in placenta of PE patients with PECAM-1 gene C373G locus GC and GG genotypes were higher than those of PE patients with CC genotype.Conclusion: Increased allele G in PECAM-1 gene C373G loci is closely correlated with endothelial injury and placental pathological damage in patients with preeclampsia.展开更多
目的探讨早发型子痫前期(early onset pre-eclampsia,EOSP)患者血清内皮细胞特异性分子-1(endothelial cell specific molecule-1,ESM1)及低密度脂蛋白受体相关蛋白-1(low-density lipoprotein receptor-related protein-1,LRP1)水平及...目的探讨早发型子痫前期(early onset pre-eclampsia,EOSP)患者血清内皮细胞特异性分子-1(endothelial cell specific molecule-1,ESM1)及低密度脂蛋白受体相关蛋白-1(low-density lipoprotein receptor-related protein-1,LRP1)水平及与病情严重程度的相关性。方法选取2019年2月~2021年2月盐城市妇幼保健院218例早发型子痫前期患者为研究对象(病例组),根据病情分为轻度组(n=117)和重度组(n=101),以同期健康体检的80例健康孕妇为对照组。比较各组血清ESM1和LRP1水平。采用多因素Logistic回归分析早发型子痫前期病情严重程度的影响因素。绘制受试者工作曲线分析血清ESM1和LRP1对早发型重度子痫前期的诊断价值。结果病例组血清ESM1(323.05±45.17 mmol/L),LRP1(12.25±0.97μg/ml)水平高于对照组(195.20±31.67 mmol/L,6.41±0.84μg/ml),差异具有统计学意义(t=23.291,47.677,均P<0.05)。重度组患者血清ESM1(672.44±83.61 pg/ml),血清LRP1(14.52±1.05μg/ml)、舒张压(113.17±12.24mmHg)、收缩压(165.19±16.63mmHg)、24h尿蛋白量(2.63±0.45g/24h)、血肌酐(74.47±20.82μmol/L)、血尿素氮(4.32±0.78mmol/L)、血尿酸(339.65±50.13μmol/L)高于轻度组(551.74±72.20 pg/ml,9.63±0.89μg/ml,92.41±9.29mmHg,147.25±14.66mmHg,1.42±0.33g/24h,69.64±15.07μmol/L,3.95±0.91mmol/L,303.82±41.71μmol/L),新生儿体质量低于轻度组(2.73±0.62 kg vs 3.20±0.62 kg),差异具有统计学意义(t=1.980~37.978,均P<0.05)。病例组患者血清ESM1及LRP1水平与舒张压、收缩压、24h尿蛋白定量、血肌酐、血尿素氮及血尿酸呈正相关(r=0.413~0.515,均P<0.05),与胎儿体质量呈负相关(r=-0.563,-0.604,均P<0.05)。高血清ESM1水平(OR=1.217,95%CI:1.036~1.429)和高血清LRP1水平(OR=1.486,95%CI:1.056~2.090)是影响早发型重度子痫前期发生的独立危险因素。血清ESM1联合LRP1诊断早发型重度子痫前期的曲线下面积(area under the curve,AUC)0.884(0.853~0.916)大于ESM1(AUC=0.749,95%CI:0.705~0.792)和LRP1(AUC=0.760,95%CI:0.712~0.807)单独诊断(Z=6.752,4.297,均P<0.05)。结论早发型子痫前期患者血清ESM1和LRP1水平升高,二者均与早发型子痫前期疾病严重程度有关,联合检测能提高早发型重度子痫前期的诊断效能。展开更多
基金This work was supported by the grants from the National Natural ScienceFoundation of China (No. 39770722 and 39925032).
文摘BACKGROUND: Traditional Chinese medicine is a potent agent in the management of clinical and experimental acute pancreatitis (AP), but the molecular mechanism of its the- rapeutic action is unclear. Numerous experimental and clinical studies have shown that platelet endothelial cell ad- hesion molecule-1 (PECAM-1) is pivotal to leukocyte re- cruitment, which results in microcirculatory injury during inflammation, but its role in acute pancreatitis is poorly un- derstood. We investigated the effects of a compound of tra- ditional Chinese medicine pancreatitis-1 (TCMP-1) on the changes of platelet endothelial cell adhesion molecule-1 (PECAM-1) expression on polymorphonuclear leukocytes (PMNs) in acute edematous pancreatitis (AEP). METHODS: The model of acute pancreatitis was estab- lished by subcutaneous injection of caerulein, and TCMP-1 treated groups were given TCMP-1 by catheterization from mouth to stomach (20 ml/kg) immediately after first time subcutaneous injection of caerulein. The changes of expres- sion of PECAM-1 on leukocytes from the blood of the splenic vein and inferior vena cava were determined by flow cytometry. RESULTS: In the AEP group, expression of PECAM-1 on PMNs was not significantly different between pancreatic microcirculation and systemic circulation at AEP2h and AEP4h time point. Then from AEP4h time point to AEP8h time point, expression of PECAM-1 was up-regulated in systemic circulation while it was down-regulated in pancre- atic microcirculation and was significantly different be- tween pancreatic microcirculation and systemic circulation at AEP8h time point (P<0.05). In the TCMP-1 treated group, compared with the AEP group, expression of PE-CAM-1 on PMNs decreased in different levels between pan- creatic microcirculation and systemic circulation and was of significant difference at AEP8h time point (P <0.05). CONCLUSION: Inhibition of PECAM-1 expression on PMNs may prevent PMNs from transmigration through the endo- thelium and may be one of the treatment mechanisms of TCMP-1 decoction on AEP.
基金supported by grants from Guangdong Medical Research Fund(2010501)Guangzhou Pharmaceutical Health Science Fund(2009-YB-111)
文摘BACKGROUND:Platelet endothelial cell adhesion molecule-1(PECAM-1),also known as CD31,is mainly distributed in vascular endothelial cells.Studies have shown that PECAM-1 is a very significant indicator of angiogenesis,and has been used as an indicator for vascular endothelial cells.The present study aimed to explore the relationship between the expression of PECAM-1 and the degree of acute lung injury(ALI) and fibrosis in paraquat(PQ) induced lung injury in rabbits.METHODS:Thirty-six adult New Zealand rabbits were randomly divided into three groups(12rabbits in each group) according to PQ dosage:8 mg/kg(group A),16 mg/kg(group B),and 32 mg/kg(group C).After PQ infusion,the rabbits were monitored for 7 days and then euthanized.The lungs were removed for histological evaluation.Masson staining was used to determine the degree of lung fibrosis(LF),and semi-quantitative immune-histochemistry analysis to determine the expression of PECAM-1.Pearson's product-moment correlation analysis was performed to evaluate the relationship between the expression of PECAM-1 and the extent of lung injuries expressed by ALI score and degree of LF.RESULTS:Rabbits in the three groups showed apparent poisoning.The rabbits survived longer in group A than in groups B and C(6.47±0.99 days vs.6.09±1.04 days vs.4.77±2.04 days)(P<0.05).ALI score was lower in group A than in groups B and C(8.33±1.03 vs.9.83±1.17 vs.11.50±1.38)(P<0.05),and there was statistically significant difference between group B and group C(P=0.03).LF was slighter in group A than in groups B and C(31.09%±2.05%vs.34.37%±1.62%vs.36.54%±0.44%)(P<0.05),and there was statistically significant difference between group B and group C(P=0.026).The PEACAM-1 expression was higher in group A than in groups B and C(20.31%±0.70%vs.19.34%±0.68%vs.18.37%±0.46%)(P<0.05),and there was statistically significant difference between group B and group C(P=0.017).Pearson's correlation analysis showed that the expression of PECAM-1 was negatively correlated to both ALI score(Coe=-0.732,P=0.001)and degree of LF(Coe=-0.779,P<0.001).CONCLUSIONS:The PECAM-1 expression significantly decreases in New Zealand rabbits after PQ poisoning,and the decrease is dose-dependent.The PECAM-1 expression is negatively correlated with ALI score and LF,showing a significant role in the development of lung injuries induced by PQ.
文摘Objective:To study the correlation of PECAM-1 gene C373G locus polymorphism with endothelial injury and placental pathological damage in patients with preeclampsia.Methods:Pregnant women with preeclampsia and healthy pregnant women delivering in Obstetrics Department of Yibin Second People's Hospital between May 2014 and September 2016 were selected and enrolled in PE group and control group respectively. Peripheral blood was collected to determine PECAM-1 gene C373G polymorphism as well as the contents of endothelial injury molecules sEng, PAR-1, sFlt-1 and ET-1;placenta tissue was collected to determine the contents of pathological damage molecules Gadd45 , TIMP2, Fas, Apaf-1 and caspase-3.Results:PECAM-1 gene C373G locus GC and GG genotype constituent ratio and allele G constituent ratio in peripheral blood of PE group were significantly higher than those of control group while CC genotype constituent ratio and allele C constituent ratio were significantly lower than those of control group. sFlt-1, sEng, PAR-1 and ET-1 contents in serum as well as Gadd45 , TIMP2, Fas, Apaf-1 and caspase-3 contents in placenta of PE group were significantly higher than those of control group;sFlt-1, sEng, PAR-1 and ET-1 contents in serum as well as Gadd45 , TIMP2, Fas, Apaf-1 and caspase-3 contents in placenta of PE patients with PECAM-1 gene C373G locus GC and GG genotypes were higher than those of PE patients with CC genotype.Conclusion: Increased allele G in PECAM-1 gene C373G loci is closely correlated with endothelial injury and placental pathological damage in patients with preeclampsia.
文摘目的探讨早发型子痫前期(early onset pre-eclampsia,EOSP)患者血清内皮细胞特异性分子-1(endothelial cell specific molecule-1,ESM1)及低密度脂蛋白受体相关蛋白-1(low-density lipoprotein receptor-related protein-1,LRP1)水平及与病情严重程度的相关性。方法选取2019年2月~2021年2月盐城市妇幼保健院218例早发型子痫前期患者为研究对象(病例组),根据病情分为轻度组(n=117)和重度组(n=101),以同期健康体检的80例健康孕妇为对照组。比较各组血清ESM1和LRP1水平。采用多因素Logistic回归分析早发型子痫前期病情严重程度的影响因素。绘制受试者工作曲线分析血清ESM1和LRP1对早发型重度子痫前期的诊断价值。结果病例组血清ESM1(323.05±45.17 mmol/L),LRP1(12.25±0.97μg/ml)水平高于对照组(195.20±31.67 mmol/L,6.41±0.84μg/ml),差异具有统计学意义(t=23.291,47.677,均P<0.05)。重度组患者血清ESM1(672.44±83.61 pg/ml),血清LRP1(14.52±1.05μg/ml)、舒张压(113.17±12.24mmHg)、收缩压(165.19±16.63mmHg)、24h尿蛋白量(2.63±0.45g/24h)、血肌酐(74.47±20.82μmol/L)、血尿素氮(4.32±0.78mmol/L)、血尿酸(339.65±50.13μmol/L)高于轻度组(551.74±72.20 pg/ml,9.63±0.89μg/ml,92.41±9.29mmHg,147.25±14.66mmHg,1.42±0.33g/24h,69.64±15.07μmol/L,3.95±0.91mmol/L,303.82±41.71μmol/L),新生儿体质量低于轻度组(2.73±0.62 kg vs 3.20±0.62 kg),差异具有统计学意义(t=1.980~37.978,均P<0.05)。病例组患者血清ESM1及LRP1水平与舒张压、收缩压、24h尿蛋白定量、血肌酐、血尿素氮及血尿酸呈正相关(r=0.413~0.515,均P<0.05),与胎儿体质量呈负相关(r=-0.563,-0.604,均P<0.05)。高血清ESM1水平(OR=1.217,95%CI:1.036~1.429)和高血清LRP1水平(OR=1.486,95%CI:1.056~2.090)是影响早发型重度子痫前期发生的独立危险因素。血清ESM1联合LRP1诊断早发型重度子痫前期的曲线下面积(area under the curve,AUC)0.884(0.853~0.916)大于ESM1(AUC=0.749,95%CI:0.705~0.792)和LRP1(AUC=0.760,95%CI:0.712~0.807)单独诊断(Z=6.752,4.297,均P<0.05)。结论早发型子痫前期患者血清ESM1和LRP1水平升高,二者均与早发型子痫前期疾病严重程度有关,联合检测能提高早发型重度子痫前期的诊断效能。
