tunica intima
- tunica intima的基本解释
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内膜
- 相似词
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The aortic tunica intima was intact, the number of foam cells was decreased, and inflammatory cells infiltrated into the med-intima smooth muscle of the n-3 PUFA group. However, with no such changes were observed in control and n-3 PUFAs groups. Little or no expression of NF-κB, ICAM-1 and MCP-1, and a high expression level of IκBα were detected in aortic tunica intima of the n-3 PUFA and control groups, while high expression levels of NF-κB, ICAM-1 and MCP-1, and little expression of IκBα were detected in aortic tunica intima of the high fat-fed group.
结果 n-3脂肪酸组大鼠体重第1~11周均明显降低,空腹血糖、血清胰岛素、TG、TC、LDL-C、总FFA和内脏脂肪占体重百分比均明显低于HF组,HDL-C则明显高于HF组,与对照组无明显差别;n-3脂肪酸组大鼠主动脉主动脉内膜完整无内皮细胞脱落现象,内膜下泡沫细胞及炎细胞浸润减少,内膜的NF-κB呈弱阳性表达,IκBα呈阳性表达,ICAM-1和MCP-1均呈阴性或弱阳性表达。
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Objective To study the relationship of endangium proliferation and the expression of metalloproteinases and tissue inhibitors of metalloproteinases after angioplasty of iliac artery in rabbits to investigate the probable mechanism of composite Danshen pill in prevention and treatment of restenosisMethods 30 white male rabbits of Japan (the average body weight was 25~30 kg)were randomly divided into 3 groups:normal control group,model group (intima destroyed by balloon and given hypercholesterol diet),CDP group (intima destroyed by balloon and given hypercholesterol diet plus drug CDP 150 mg/d),10 ones each groupResults The results of iliac artery angiogram and the analysis of pathology:there were lumens stenosis,thinner intima,smaller intima area,in CDP group compared with those in model group,and ratio of intima and tunica media thickness and area among each group (P<001)Immunohistochemistry analysis:the MMP2,MMP9,TIMP1,TIMP2 in model group significantly increased than those in control group (P<001)The CDP group had lower MMP2 and MMP9 expression,higher TIMP1 and TIMP2 expression,and increased MMP2/TIMP1,MMP9/TIMP2 than model group (P<001)The thickening of vascular neointima and stenosis degree of vascular lumen were relevant to MMP2 and MMP9 (r=0896,P<001)Conclusions MMP and TIMP play the very important role in the restenosis process of arteryCDP could inhibit the thickness of vascular neointima after balloon injury,the probable mechanism of which may be inhibiting collagen formation,smooth muscle immigration and decreasing hyperplasia of intima by interfering expression of MMPs and TIMPs
目的 研究兔髂动脉成形术后血管内膜增生和基质金属蛋白酶及其抑制物表达之间的关系,探讨复方丹参滴丸预防再狭窄的可能机制。方法健康成年二级雄性日本大耳白兔30只,平均体重25~30 kg。随机分为3组:正常对照组10只,模型组10只(球囊内膜剥脱加高胆固醇饮食),治疗组10只(球囊内膜剥脱加高胆固醇饮食以及复方丹参滴丸150 mg/d)。结果兔髂动脉造影、血管病理图像分析检测结果:①复方丹参滴丸组较模型组血管造影示管腔直径狭窄、内膜厚度减少、内膜面积减少、内膜厚度和中膜厚度比、面积比,各组之间有显著性差异(P<001)。②免疫组化分析:模型组MMP2、MMP9、TIMP1、TIMP2表达均高于对照组(P<001);复方丹参滴丸组MMP2、MMP9的表达低于模型组,而TIMP1、TIMP2的表达高于模型组;TIMP1/MMP2、TIMP2/MMP9明显增加,差异有显著性(P<001)。③内膜的增生以及管腔的狭窄程度与MMP2、MMP9有很好的相关性(r=0896,P<001)。结论 MMP和TIMP在再狭窄形成中起重要作用;复方丹参滴丸能够明显抑制血管损伤后的内膜增生,可能的机制是通过影响金属蛋白酶MMP2、MMP9及其抑制物TIMP1、TIMP2的表达从而抑制胶原的生成、平滑肌的迁移、增生,而减少内膜的增生。
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Hybridization of cDNA probe and gene chip was carried out, gene chip was scanned with Scan Array3000, and results were analyzed with ImaGene 3. 0. Result: 1 Toluidine blue staining of semithin section showed: compared with control group, the boundary of tunica intima, tunica media and tunica adventitia was not distinct, tunica intima and internal elastic membrane was thickened and multilaminar.
将标记了荧光素的cDNA与细胞周期相关基因表达谱芯片杂交,扫描并分析杂交结果。cy5/cy3 ratio值在0.5~2.O之外且一对Double基因表达趋势一致的基因为表达有差异基因,ratio值>2.O表明DM组该基因上调,ratio值<0.5表明DM组该基因下调。
- 更多网络解释 与tunica intima相关的网络解释 [注:此内容来源于网络,仅供参考]
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tunica intima:动脉肉膜
本膜,肉膜,阴囊肉膜 tunica dartos | 动脉肉膜 tunica intima | 动脉中膜 tunica media
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tunica media:动脉中膜
动脉肉膜 tunica intima | 动脉中膜 tunica media | 黏膜 tunica mucosa
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tunica externa:外膜
tunica adventitia 外膜 | tunica externa 外膜 | tunica intima 内膜