摘要
为了解氧化低密度脂蛋白与动脉粥样硬化的关系,通过对35例尸检(死后12小时内)的主动脉观察,以抗Cu2+-ox-LDL及4-HNE-MDA-LDL、抗apoB、CD68和actin抗体的免疫组织化学和图像分析方法,对人体动脉粥样硬化(As)不同时期细胞内外LDL和ox-LDL进行定位、定量研究,结果显示:ox-LDL与LDL在病灶内共存分布;ox-LDL在As早期主要在巨噬细胞源性泡沫细胞内,在As晚期,主要位于平滑肌细胞内和细胞外基质中;LDL在动脉粥样硬化斑块期含量高于脂纹期,而纤维斑块期与粥样斑块期则无差别;ox-LDL含量在粥样斑块期高于纤维斑块期,而后者又高于脂纹期;脂纹期ox-LDL含量低于LDL,而在纤维斑块期及粥样斑块期ox-LDL含量大于LDL。
Atotalof35humanaortaspecimensobtainedwithin12hourspost-mortemwerecolect-ed.ThedistributionpaternandquantityofLDLandox-LDLinatheroscleroticlesionsofvaryingsever-ityandtherelationshipwithaortacelswerestudiedbyimmunohistochemicaltechniquesandcomputor-izedimageprocessing.There-sultsshowedthatthestainingpaternwithanti--ox-LDLandantibodiestoapoBwassimilar;infattysteaks,thestainingforox-LDLwaspredominantlycel-associatedinmacrophagesderivedfoamcels,inthelatelesions,itspaternshiftedtosmoothmusclecelsandextra-celularmatrixstaining,therewasalsomoreapoBinfibrofatyplaquesandatheromatousplaquesthaninfatystreaks,butnosignificantdiferencewasfoundbetweenthetwostagesofplaques.ThequantityofCu2+-ox-LDLsignificantlyincreasedwiththedevelopmentofAS.TherewasmoreLDLthanox-LDLinfatystreaks,butinthelateplaques,therewassignificantlymoreox-LDLthanLDL.
出处
《中华病理学杂志》
CAS
CSCD
北大核心
1996年第4期224-227,共4页
Chinese Journal of Pathology
基金
国家自然科学基金
浙江省自然科学基金