Association of urinary 90 kDa angiotensin- converting enzyme with family history of hypertension and endothelial function in normotensive individuals

Association of urinary 90 kDa angiotensin- converting enzyme with family history of hypertension and endothelial function in normotensive individuals

Author Teixeira, A.m.s. Autor UNIFESP Google Scholar
Plavnik, Frida Liane Autor UNIFESP Google Scholar
Fernandes, Fernanda Barrinha Autor UNIFESP Google Scholar
Marson, Odair Autor UNIFESP Google Scholar
Christofalo, Dejaldo Marcos de Jesus Autor UNIFESP Google Scholar
Ajzen, Sergio Aron Autor UNIFESP Google Scholar
Sesso, Ricardo de Castro Cintra Autor UNIFESP Google Scholar
Franco, Maria do Carmo Pinho Autor UNIFESP Google Scholar
Casarini, Dulce Elena Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract We described angiotensin-I-converting enzyme (ACE) isoforms with molecular masses of 190, 90, and 65 kDa in the urine of normotensive offspring of hypertensive subjects. Since they did not appear in equal amounts, we suggested that 90 kDa ACE might be a marker for hypertension. We evaluated the endothelial response in normotensive offspring with or without family history of hypertension and its association with the 90 kDa ACE in urine. Thirty-five normotensive subjects with a known family history of hypertension and 20 subjects without a family history of hypertension, matched for age, sex, body weight, and blood pressure, were included in the study. Endothelial function was assessed by ultrasound and a sample of urine was collected for determination of ACE isoforms. In the presence of a family history of hypertension and detection of 90 kDa ACE, we noted a maximal flow mediated dilation of 12.1 ± 5.0 vs 16.1 ± 6.0% in those without a previous history of hypertension and lacking urinary 90 kDa ACE (P < 0.05). In subjects with a family history of hypertension and presenting 90 kDa ACE, there were lower levels of HDL-cholesterol (P < 0.05) and higher levels of triglycerides (P < 0.05). Subjects with 90 kDa ACE irrespective of hypertensive history presented a trend for higher levels of triglycerides and HDL-cholesterol (P = 0.06) compared to subjects without 90 kDa ACE. Our data suggest that the 90 kDa ACE may be a marker for hypertension which may be related to the development of early atherosclerotic changes.
Keywords Endothelial dysfunction
Angiotensin-I-converting enzyme
Hypertension
Normotension
N-domain angiotensin- converting enzyme
Language English
Date 2008-05-01
Published in Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 41, n. 5, p. 351-356, 2008.
ISSN 0100-879X (Sherpa/Romeo, impact factor)
Publisher Associação Brasileira de Divulgação Científica
Extent 351-356
Origin http://dx.doi.org/10.1590/S0100-879X2008005000017
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000258764000002
SciELO ID S0100-879X2008000500002 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/4374

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