OBJECTIVE Inflammation is one of the main pathogeneses of neointimal hyperplasia after coronary intervention. Thalidomide, because of its potent antiinflammatory and immunomodulatory properties, is being re-evaluated in several clinical fields. Therefore, we examined whether thalidomide therapy affects neointimal formation. METHODS AND RESULTS In male Sprague-Dawley rats, 100 mg/kg of either ...

OBJECTIVE To use intravascular ultrasound to investigate the effects of antiplatelet agents and other factors on neointimal proliferation after stent implantation for iliac artery stenosis. PATIENTS AND METHODS The subjects were 109 patients with peripheral arterial disease who underwent stent implantation in the iliac artery. Intravascular ultrasound was performed to evaluate lesion area, st...

Experimental studies suggest a reduced neointimal tissue proliferation in vascular stainless steel stents coated with gold. This prospective multicenter trial evaluated the impact of gold coating on neointimal tissue proliferation in patients undergoing elective stent implantation. The primary end point was the in-stent tissue proliferation measured by intravascular ultrasound at 6 months compa...

It is well known that excessive intake of sodium chloride (sodium) is a risk factor for cardiovascular disease because it raises blood pressure. However, sodium loading reportedly promotes cardiovascular disease independently of its effect on blood pressure. To examine the mechanisms by which sodium loading promotes vascular inflammation independently of its effect on blood pressure, we examine...

The usability of polymer stents is questioned according to the results obtained from preliminary clinical studies for biodegradable polymer-based developed after drug-eluting stents. Due high strut thickness and weak mechanical properties stents, research continues on creation new models by improving design material. dog-boning in balloon-expanded damages intimal medial layers within artery. Th...

Endothelial injury induces intimal thickening, but whether more extensive injury increases the extent of neointimal proliferation in the rabbit aorta is not well defined. We induced graded injury in the abdominal aortas of rabbits and maximal intimal/medial (I/M) area and thickness ratios were calculated from aortic cross sections harvested 2 weeks after injury. The degree of injury was verifie...

Oral all-trans retinoic acid (atRA) has been shown to reduce the formation of neointimal hyperplasia; however, the dose required was 30 times the chemotherapeutic dose, which already has reported side effects. As neointimal formation is a localized process, new approaches to localized delivery are required. This study assessed whether atRA within a citrate-based polyester, poly(1,8 octanediolci...

Fowl show spontaneous elevation of blood pressure and neointimal plaque formation in the abdominal aorta at young ages. A similar neointima can be induced by a balloon-catheter-induced endothelium injury to the fowl aorta. Both spontaneously developed and injury-induced vascular lesions exhibit subendothelial hyperplasia consisting of neointimal cells with a synthetic phenotype and abundant ext...

BACKGROUND Edge restenosis is a major problem after radioactive stenting. The cold-end stent has a radioactive mid-segment (15.9 mm) and non-radioactive proximal and distal 5.7 mm segments. Conceptually this may negate the impact of negative vascular remodelling at the edge of the radiation. METHOD AND RESULTS ECG-gated intravascular ultrasound with three-dimensional reconstruction was perfor...