The platelet angiotensin II receptor in type I diabetes: studies in patients with and without nephropathy

Autor: Lesley V. Campbell, Monika A. Pawlak, V. Timmermans, John A. Charlesworth, MM Makarious, K. A. Duggan, Graham J. Macdonald
Rok vydání: 1993
Předmět:
Zdroj: European journal of clinical investigation. 23(9)
ISSN: 0014-2972
Popis: Experimental studies demonstrate impaired regulation of the mesangial angiotensin I1 (AII) recep- tor in diabetes. This could contribute to the distur- bance of glomerular blood flow and the development of diabetic nephropathy. The aim of this study was to determine whether a similar receptor abnormality occurs in patients with type I insulin-dependent dia- betes mellitus (IDDM) and if so whether this is more prevalent in patients with micro- or macro-albumi- nuria. The platelet A11 receptor was chosen because of its availability from the circulation and its comparable regulatory properties to tissue-based receptors. The interaction between plasma All and its platelet recep- tor was examined in 45 patients with TDDM and 36 age- and sex-matched control subjects. Seven patients had clinical nephropathy and two had persistent micro-albuminuria. The duration of diabetes varied from 1 month to 42 years. There was a significant inverse correlation between plasma AIT and the logarithm of receptor number in the control group (r= -0.555, P
Databáze: OpenAIRE