Effect of GH/IGF-I deficiency on long-term renal changes and urinary albumin excretion in diabetic dwarf rats

被引：26

作者：

Gronbaek, H ^{[1
]}

Volmers, P ^{[1
]}

Bjorn, SF ^{[1
]}

Osterby, R ^{[1
]}

Orskov, H ^{[1
]}

Flyvbjerg, A ^{[1
]}

机构：

[1] AARHUS UNIV, AARHUS KOMMUNE HOSP,INST PATHOL,INST EXPT CLIN RES, ELECTRON MICROSCOP DIABET RES LAB, DK-8000 AARHUS C, DENMARK

来源：

AMERICAN JOURNAL OF PHYSIOLOGY-ENDOCRINOLOGY AND METABOLISM | 1997年 / 272卷 / 05期

关键词：

renal hypertrophy; kidney disease; basement membrane thickening; kidney morphology; growth hormone deficiency; insulin-like growth factor I;

D O I：

10.1152/ajpendo.1997.272.5.E918

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Growth hormone (GH) and insulin-like growth factor I (IGF-I) may play a role in early diabetic renal and glomerular growth and in the later development of experimental diabetic kidney disease. Rats from a genetic GH/IGF-I-deficient dwarf rat strain were made streptozotocin diabetic and were compared with nondiabetic dwarf rats. GH/IGF-I-intact rats with and without diabetes served as controls. After 6 mo of diabetes, kidney weight and total glomerular volume increased significantly in GH/IGF-I-intact diabetic rats compared with the nondiabetic GH/IGF-I-intact rats (P < 0.05), whereas the diabetic dwarf rats had insignificant changes compared with dwarf control rats. By the end of the study, urinary albumin excretion (UAE) increased from similar base levels of similar to 15-20 mu g/24 h to 473 +/- 52 (SE) mu g/24 h in GH/IGF-I-intact diabetic rats compared with 151 +/- 32 mu g/24 h in diabetic dwarf rats (P < 0.01). In conclusion, isolated GH/IGF-I deficiency reduces the degree of renal and glomerular hypertrophy and the increase in UAE after 6 mo of experimental diabetes in GH/IGF-I-deficient rats.

引用

页码：E918 / E924

页数：7

共 30 条

[1] ABSENCE OF GLOMERULAR INJURY OR NEPHRON LOSS IN A NORMOTENSIVE RAT REMNANT KIDNEY MODEL [J].