Systematic evaluation of microangiopathy in diabetic Chinese hamsters. I. Morphometric analysis of minimal glomerular basement membrane thickness in 11- to 15- and 19- to 23-month-old Chinese hamsters.

Autor: Diani AR, Sawada GA, Peterson T, Wyse BM, Blanks MC, Vidmar TJ, Gerritsen GC
Jazyk: angličtina
Zdroj: Microvascular research [Microvasc Res] 1986 May; Vol. 31 (3), pp. 306-16.
DOI: 10.1016/0026-2862(86)90019-1
Abstrakt: Renal glomeruli of 11- to 15- and 19- to 23-month-old nondiabetic (M) and diabetic (XA and AC) genetic sublines of Chinese hamsters were morphometrically analyzed to determine if minimal capillary basement membrane thickening (CBMT) is a microvascular complication in this animal model. Minimal glomerular capillary basement membrane thickness was significantly elevated in the AC diabetic subline (117.2 nm +/- 5.0, P less than 0.004) compared with the M nondiabetic subline (99.0 nm +/- 14.0) in the 11- to 15-month age span. However, in the 19- to 23-month age range, both the XA (140.2 nm +/- 20.0, P less than 0.02) and AC (140.1 nm +/- 12.4, P less than 0.04) diabetic sublines displayed significantly greater glomerular capillary basement membrane thickness in comparison with the M nondiabetic subline (119.0 nm +/- 13.4). The greatest influence on CBMT in the diabetics was shown to be a combination of the aging process and severity of hyperglycemia. This initial systematic morphometric study has demonstrated that glomerular CBMT is a characteristic microvascular lesion in 11- to 15-month-old diabetic AC and 19- to 23-month-old diabetic XA and AC Chinese hamsters in comparison with age-matched nondiabetics. Furthermore, this investigation suggests that the Chinese hamster appears to be an acceptable model for the study of chronic complications associated with diabetic nephropathy.
Databáze: MEDLINE