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作 者:刘洁琳[1] 刘雅[1] 王佐广[1] 文杰[1] 王世奇[1] 陈新军[1] 刘亚萍[1] 张维君[1] 温绍君[1]
机构地区:[1]首都医科大学附属北京安贞医院北京市心肺血管疾病研究所高血压研究室,100029
出 处:《中华心血管病杂志》2008年第10期916-918,共3页Chinese Journal of Cardiology
基 金:北京市科技项目(H010910070113)
摘 要:目的探讨人心包间皮细胞能否分泌内皮素(ET)。方法利用放射免疫分析方法分别检测行心内直视术的51例心脏病患者心包液、血浆和心包组织的ET含量,利用原位杂交方法观察患者心包组织是否存在ETmRNA的表达。结果心脏病患者心包液中ET浓度显著高于血浆中ET浓度[分别为(128.8±44.0)ng/L及(93.7±28.6)ng/L,P〈0.001];心脏病患者心包组织中含有高浓度的ET[(510.3±156.7)ng/kg];心脏病患者心包组织浆膜层间皮细胞的胞浆中存在ETmRNA的表达。结论心脏病患者心包液和心包组织中含有高浓度的ET;人心包组织问皮细胞可以分泌ET.Objective To evaluate pericardial endothelin (ET) secretion by the human pericardial mesothelial cells, Methods Plasma, pericardial fluid and pericardial tissue were obtained in 51 patients receiving open heart surgery (coronary artery bypass grafting, elective heart valvuloplasty or valve replacement). ET concentrations in the plasma, pericardial fluid and pericardial tissues were measured by radioimmunoassay (RIA). ET mRNA expression in the human pericardium was detected by in situ hybridization. Results ( 1 ) The levels of ET in human pericardia] fluid was significantly higher than that in the plasma[ ( 128.8 ± 44. 0 ) ng/L vs. ( 93. 7±28.6 ) ng/L, P 〈 0. 001 ] ; ( 2 ) ET concentration in the pericardia] tissue was (510. 3 ±156. 7 ) ng/kg; (3) In situ hybridization technique evidenced the abundant ET mRNA expression in human pericardial mesothelial cells. Conclusion The study indicated that pericardium secreted ET into the pericardial space.
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