Association Between Renal Vasculature Changes and Generalized Atherosclerosis: An Autopsy Survey
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- Iwakiri Takashi
- Department of Pathology, Faculty of Medicine, University of Miyazaki Circulatory Fluid Regulation Division, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki
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- Sato Yuichiro
- Department of Pathology, Faculty of Medicine, University of Miyazaki
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- Matsuura Yunosuke
- Department of Pathology, Faculty of Medicine, University of Miyazaki Circulatory Fluid Regulation Division, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki
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- Hatakeyama Kinta
- Department of Pathology, Faculty of Medicine, University of Miyazaki
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- Marutsuka Kousuke
- Department of Pathology, Faculty of Medicine, University of Miyazaki
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- Yamashita Atsushi
- Department of Pathology, Faculty of Medicine, University of Miyazaki
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- Fujimoto Shouichi
- Department of Hemovascular Medicine and Artificial Organs, University of Miyazaki Hospital
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- Kitamura Kazuo
- Circulatory Fluid Regulation Division, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki
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- Asada Yujiro
- Department of Pathology, Faculty of Medicine, University of Miyazaki
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Abstract
Aim: To examine the association between renal vasculature changes and generalized atherosclerosis using autopsy cases.<br> Methods: We histologically examined 107 autopsy patients(mean age, 68.4 years; 64% men; 81% non-CVD) to investigate the association between renal vasculature changes and generalized atherosclerosis. We measured the intima/media(I/M) ratio for the renal, intrarenal and systemic arteries(coronary, cerebral, common carotid and common iliac), calculated the rates of arteriolar hyalinization and global glomerulosclerosis and evaluated the frequency of advanced lesions(AHA classification ≥IV) in the systemic arteries.<br> Results: The I/M ratios of the renal and intrarenal arteries and the rate of global glomerulosclerosis increased with age, while the rates of arteriolar hyalinization and global glomerulosclerosis were associated with diabetes and hypertension(all p＜0.05). The I/M ratio of the coronary artery was independently associated with the rate of global glomerulosclerosis(p＜0.05). The frequency of advanced atherosclerotic lesions in the coronary and cerebral arteries was also correlated with the I/M ratio of the renal artery and rates of arteriolar hyalinization and global glomerulosclerosis(all p＜0.05). The frequency of advanced lesions in the cerebral and common carotid arteries was independently associated with the I/M ratio of the renal artery and the rate of renal arteriolar hyalinization(odds ratio(OR) with [95% confidence interval]; 5.09 [1.15-27.9] and 4.11 [1.38-13.9], respectively).<br> Conclusions: The results of this study demonstrated that pathological changes in four portions of the renal vasculature differ. Renal vasculature changes except the intrarenal arteries were significantly associated with those observed in the cerebral, common carotid and coronary arteries.
Journal
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- Journal of Atherosclerosis and Thrombosis
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Journal of Atherosclerosis and Thrombosis 21 (2), 99-107, 2014
Japan Atherosclerosis Society