Monocyte chemoattractant protein-1(MCP-1), a potent chemoattractant, is thought to play an important role in migration of monocytes into atherosclerotic lesions. The present study was designed to investigate the capac...Monocyte chemoattractant protein-1(MCP-1), a potent chemoattractant, is thought to play an important role in migration of monocytes into atherosclerotic lesions. The present study was designed to investigate the capacity of human peripheral blood monocytes to express MCP-1 and effects of native very low density lipoprotein (VLDL) and oxidized VLDL(OX-VLDL) on the expression. The total RNA was extracted from cultured monocytes, which were exposed to VLDL and OX-VLDL, and the media conditioned by monocytes were collected. MCP-1 mRNA expression was examined by Northern blot analysis. MCP-1 protein in conditioned media was determined by using sandwich ELISA. The results showed that monocytes can express MCP-1 after a 24 h incubation at 37℃，and the expression was markedly increased by a exposure to OX-VLDL, whereas the expression was slightly increased when exposed to VLDL. It suggests that the capacity of monocytes to produce MCP-1 that recruits and activates circulating monocytes may be of considerable importance in atherogenesis, and oxidation of VLDL enhances its potential to promote atherogenesis.展开更多
Objective To review the recent research progress in lectin-like oxidized low-density lipoprotein receptor-1 （LOX-1） including its protein, ligands, expression and pathophysiological significance. Data sources Inform...Objective To review the recent research progress in lectin-like oxidized low-density lipoprotein receptor-1 （LOX-1） including its protein, ligands, expression and pathophysiological significance. Data sources Information included in this article was identified by searching of PUBMED （1997-2006） online resources using the key term LOX-1. Study selection Mainly original milestone articles and critical reviews written by major pioneer investigators of the field were selected. Results The key issues related to the LOX-1 protein as well as ligands for LOX-1. Factors regulating the expression of LOX-1 were summarized. The pathophysiological functions of LOX-1 in several diseases were discussed. Conclusions Identification of LOX-1 and a definition of its biological role in pathophysiologic states provide deeper insight into the pathogenesis of some cardiovascular diseases especially in atherosclerosis and provide a potential selective therapeutic approach. LOX-1 is unlocking and drugs targeting LOX-1 might be a promising direction to explore.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
文摘Monocyte chemoattractant protein-1(MCP-1), a potent chemoattractant, is thought to play an important role in migration of monocytes into atherosclerotic lesions. The present study was designed to investigate the capacity of human peripheral blood monocytes to express MCP-1 and effects of native very low density lipoprotein (VLDL) and oxidized VLDL(OX-VLDL) on the expression. The total RNA was extracted from cultured monocytes, which were exposed to VLDL and OX-VLDL, and the media conditioned by monocytes were collected. MCP-1 mRNA expression was examined by Northern blot analysis. MCP-1 protein in conditioned media was determined by using sandwich ELISA. The results showed that monocytes can express MCP-1 after a 24 h incubation at 37℃，and the expression was markedly increased by a exposure to OX-VLDL, whereas the expression was slightly increased when exposed to VLDL. It suggests that the capacity of monocytes to produce MCP-1 that recruits and activates circulating monocytes may be of considerable importance in atherogenesis, and oxidation of VLDL enhances its potential to promote atherogenesis.
文摘Objective To review the recent research progress in lectin-like oxidized low-density lipoprotein receptor-1 （LOX-1） including its protein, ligands, expression and pathophysiological significance. Data sources Information included in this article was identified by searching of PUBMED （1997-2006） online resources using the key term LOX-1. Study selection Mainly original milestone articles and critical reviews written by major pioneer investigators of the field were selected. Results The key issues related to the LOX-1 protein as well as ligands for LOX-1. Factors regulating the expression of LOX-1 were summarized. The pathophysiological functions of LOX-1 in several diseases were discussed. Conclusions Identification of LOX-1 and a definition of its biological role in pathophysiologic states provide deeper insight into the pathogenesis of some cardiovascular diseases especially in atherosclerosis and provide a potential selective therapeutic approach. LOX-1 is unlocking and drugs targeting LOX-1 might be a promising direction to explore.
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。
