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    Elevated plasma homocysteine level in slow coronary flow
    (Elsevier Ireland Ltd, 2005) Barutcu, I; Sezgin, AT; Sezgin, N; Gullu, H; Esen, AM; Topal, E; Ozdemir, R
    Background: Slow flow velocity of dye in coronary arteries is not an infrequent finding during routine coronary angiography and its precise mechanism is unknown. In this study, we measured the plasma homocysteine level in patients with slow coronary flow (SCF) in comparison with subjects having normal coronary flow (NCF). Method: The study consisted 39 patients (mean age, 47 +/- 8 years) with angiographically diagnosed SCF. SCF was defined according to TIMI frame count (TFC) method. Thirty subjects (mean age 46 8 years) with NCF served as control group. Plasma homocysteine levels were measured after 12 h fasting period in each subject. Results: Baseline demographic properties were similar in both groups. In patients with SCF, TFC was significantly higher than those with NCF. Similarly, in patients with SCF plasma homocysteine level was significantly higher than that of control group (14.1 +/- 2.2 vs. 5.5 +/- 1.3 mu mol/l, respectively p < 0.001). Conclusion: Elevated plasma homocysteine level supports the hypothesis that endothelial function is impaired in slow coronary flow. (c) 2004 Elsevier Ireland Ltd. All rights reserved.
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    Vascular endothelial function and plasma homocysteine levels in Behcet's disease
    (Excerpta Medica Inc, 2004) Ozdemir, R; Barutcu, I; Sezgin, AT; Acikgoz, N; Ermis, N; Esen, AM; Topal, E
    The purpose of the present study was to test endothelial function and to determine if plasma homocysteine levels are associated with endothelial injury in patients with Behcet's disease (BD). Flow-mediated dilation in patients with BD was smaller than. that of control subjects (p = 0.001), and mean plasma homocysteine levels in patients with BD were significantly higher (p = 0.0001). On regression analysis, only mean plasma homocysteine concentration was independently related to flow-mediated dilation (F = 5.7; p = 0.001). (C) 2004 by Excerpta Medica, Inc.