The primary small vessel systemic vasculitides are disorders that target small blood vessels, inducing vessel wall inflammation and associated with development of antineutrophil cytoplasmic antibodies. Multiple organs are attacked including the lungs and kidneys. Increasing knowledge of pathogenesis suggests that the antibodies activate neutrophils inappropriately, leading to endothelial and va...

T he reasons why diabetic patients with microalbuminuria have marked endothelial damage (1,2) and an increased risk of atherosclerosis (3,4) are unclear. Infection with Helicobacter pylori, especially with strains carrying the cytotoxin-associated gene A (CagA), might represent a causal factor, since anti-CagA antibodies elicited by infection may cross-react with endothelial antigens (5), incre...

Endothelial dysfunction plays an important role in the development of diabetic nephropathy.1 Although the loss of endothelial nitric oxide synthase is well recognized as a cause of hypertension and endothelial dysfunction, other mechanisms are likely to contribute to endothelial damage. One such possible mechanism is endothelial damage caused by infiltrating macrophages. Although macrophages pl...

developed the neurological events while on treatment. CNS in volvement in Choriocarcinoma can be due to hemorrhagic metastas, tumor embolization and chemotherapy (especially platinum compounds). CNS thrombotic events are extremely rare. The association between cancer and thrombosis was identified in 1865 and the combination is called as Trousseau syndrome.[2] The mechanisms elucidated include c...

The endothelial cell interactions of homozygous null mutants of Candida albicans that were deficient in secreted aspartyl proteinase 1 (Sap1), Sap2, or Sap3 were investigated. Only Sap2 was found to contribute to the ability of C. albicans to damage endothelial cells and stimulate them to express E-selectin. None of the Saps studied appears to play a role in C. albicans adherence to endothelial...

AIM Drug-eluting stents are widely used to prevent restenosis but are associated with late endothelial damage. To understand the basis for this effect, we have studied the consequences of a prolonged incubation with rapamycin on the viability and functions of endothelial cells. METHODS AND RESULTS Human umbilical vein or aorta endothelial cells were exposed to rapamycin in the absence or in t...

BACKGROUND AND PURPOSE The purpose of this study was to measure the temporal profile of expression of the endothelial nitric oxide synthase (NOS) in cerebral microvessels after middle cerebral artery occlusion in the rat. METHODS Middle cerebral artery occlusion was performed on 24 male Wistar rats by extracranial insertion of a 4-0 nylon monofilament into the internal artery. Three additiona...

BACKGROUND Chronic inflammatory rheumatic disorders are associated with excess cardiovascular mortality. This may result from arteriosclerosis following inflammatory damage to the vessel wall by vasculitis. Our hypothesis that vasculitis results in arteriosclerosis by causing vascular endothelial dysfunction was tested in patients with primary systemic necrotizing vasculitis (SNV). METHODS AN...