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Metabolism of hepatocyte growth factor in the heart in patients with coronary artery disease: Implication for coronary arteriosclerosis



Metabolism of hepatocyte growth factor in the heart in patients with coronary artery disease: Implication for coronary arteriosclerosis



Cardiovascular Drugs & Therapy 15(2): 147-153



Purpose: HGF, one of endothelium-specific growth factors, might contribute to the repair process of vascular endothelial cell damage, suggesting that serum HGF concentration may be elevated in patients with arteriosclerosis. However, the cardiac metabolism of HGF has not been examined in patients with coronary artery disease (CAD). We examined the levels of hepatocyte growth factor (HGF) in the coronary circulation and its correlation with the severity of arteriosclerosis in patients with CAD. Methods: We measured serum HGF concentration obtained from the coronary sinus (CS) and ascending aorta (AA) in patients with atherosclerotic CAD (Group E, n = 33) or vasospastic angina (Group V, n = 26), or normal control subjects (Group N, n = 12). In group E, the severity of coronary artery stenosis was evaluated using the Gensini's score. Results: Serum HGF concentrations (ng ml) in the CS were 0.112 +- 0.008 in Group E (p < 0.001 vs. Group V, p < 0.001 vs. Group N), 0.197 +- 0.012 in Group V (p = 0.031 vs. Group N), and 0.245 +- 0.021 in Group N. Serum HGF concentrations in the AA were 0.282 +- 0.014 in Group E (p = 0.045 vs. Group V, p = 0.021 vs. Group N), 0.246 +- 0.012 in Group V, and 0.237 +- 0.009 in Group N. Serum HGF extraction in the heart (HGF in the AA-HGF in the CS) in Group E (0.170 +- 0.018) was significantly higher compared with in Group V (0.049 +- 0.011) or Group N (0.008 +- 0.005). There was a significant negative correlation between the severity of coronary arteriosclerosis and serum HGF concentration in CS (r = - 0.66, p < 0.001), and a significant positive correlation between the severity of coronary arteriosclerosis and HGF extraction in the heart (r = 0.75. p < 0.001). Conclusions: We conclude that the difference of HGF levels between CS and AA in patients with CAD are decreased, and extent of decreases in HGF levels correlates with the severity of coronary arteriosclerosis. The abnormality of HGF metabolism in the heart may contribute of the progression of coronary arteriosclerosis.

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Accession: 010976808

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PMID: 11669408

DOI: 10.1023/a:1011174913176


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