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- W2056572377 abstract "Large vessel disease, a common feature of diabetes mellitus, appears to run an aggressive course, but its cellular and molecular aspects remain partially elucidated. Although in common atherosclerosis and especially in other forms of accelerated vasculopathy, immunoinflammatory mechanisms participate in the disease process, it is unclear whether this is present in diabetic vasculopathy. We hypothesized that diabetic macrovasculopathy, compared with classical atherosclerosis, is associated with increased immunoinflammatory features and matrix accumulation. In this study, vessel segments obtained after lower-limb amputation for advanced atherosclerotic disease, from type 2 diabetic patients ( n 5 20; 68.9 6 10.9 years) and nondiabetic patients ( n 5 16; 67.1 6 14.6 years) were analyzed. Histological characteristics (extent of intimal proliferation, cellularity, and fibrosis) were semiquantitatively graded in the two lesion types. Using immunohistochemistry, the presence of T cells and macrophages, accumulation of fibronectin, and expression of tumor necrosis factora was also assessed. Histological features of these advanced atherosclerotic lesions were similar in the two lesions examined. By immunohistochemistry, a similar pattern of T-cell and macrophage infiltration and fibronectin accumulation was observed. Nevertheless, increased expression of tumor necrosis factora was observed in diabetic lesions (13/19 patients had positive staining), whereas only 2 of 16 lesions from nondiabetic patients had positive staining ( p , 0.003), with an odds ratio of 15.17 (confidence interval 2.12–139.5). These data suggest that increased expression of tumor necrosis factora observed in the diabetic lesions may reflect an enhanced inflammatory activity associated with the development of vascular lesions in type 2 diabetic patients. Cardiovasc Pathol 1999;8:145–151 © 1999 by Elsevier Science Inc." @default.
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- W2056572377 date "1998-02-01" @default.
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- W2056572377 title "Increased Expression of Tumor Necrosis Factor-α in Diabetic Macrovasculopathy" @default.
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- W2056572377 doi "https://doi.org/10.1016/s0735-1097(97)88173-9" @default.
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