Relationship between prorenin, IGF-I, IGF-binding proteins and retinopathy in diabetic patients

被引:6
作者
Elias, AN
Pandian, MR
Naqvi, F
Sebag, J
Charles, MA
Gwinup, G
机构
[1] Department of Medicine, University of California, Irvine, Irvine
[2] Department of Medicine, University of California, Irvine, Medical Center, Orange, CA 92668
来源
GENERAL PHARMACOLOGY-THE VASCULAR SYSTEM | 1996年 / 27卷 / 02期
关键词
diabetes; prorenin; retinopathy; insulin growth factor;
D O I
10.1016/0306-3623(95)02033-0
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Plasma prorenin and renin, serum insulin-like growth factor I (IGF-I) and IGF-binding protein (IGFBP-2 and IGFBP-3) concentrations were measured in 22 randomly selected male and female patients with insulin dependent diabetes mellitus (IDDM) or non-IDDM (NIDDM). Plasma prorenin concentration was significantly elevated in patients with proliferative retinopathy (1869.5+/-785.0 mUL(-1), mean+/-SEM) compared to patients with nonproliferative retinopathy (325.5+/-73.2 mUL(-1), P<0.003) and those without retinopathy (318.6+/-47.3 mUL(-1), P<0.007). Similarly, serum insulin like growth factor-I (IGF-I) concentration in patients with proliferative retinopathy (216.3+/-21.5 mu gL(-1)) was significantly higher than in patients with nonproliferative retinopathy (126.3+/-14.85 mu gL(-1), P<0.004) and without retinopathy (135.2+/-37.26, P<0.05). There was moderately strong positive correlation between plasma prorenin and serum IGF-I concentrations (r=0.56, P<0.01). Plasma prorenin concentration was uninfluenced by change in renal function (creatinine clearance, serum creatinine or BUN), but IGF-I levels were inversely related to creatinine clearance (r=0.67, P<0.002). There was no demonstrable relationship between IGF-binding proteins and prorenin or renin concentrations, In view of some overlap between plasma prorenin and serum IGF-I concentrations in diabetic patients with proliferative and nonproliferative retinopathy, measurement of both markers may be more useful in predicting the development of proliferative retinopathy in patients with diabetes mellitus than either measurement alone.
引用
收藏
页码:329 / 332
页数:4
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