Asociación de la región microsatélite AGAT del gen receptor de mineralocorticoides con los niveles de actividad renina en hipertensos esenciales

Autor: Cristian A. Carvajal, Lorena Mosso, Carlos E. Fardella, Carlos R Muñoz-Brauning, Gonzalo Valdivia
Rok vydání: 2005
Předmět:
Zdroj: Revista médica de Chile v.133 n.12 2005
SciELO Chile
CONICYT Chile
instacron:CONICYT
ISSN: 0034-9887
DOI: 10.4067/s0034-98872005001200002
Popis: Background: Hypertensive states could result from constitutive activation of mineralorticoid receptor (MR) that generates salt retention and blood pressure elevation. Moreover, microsatellite regions can be associated to the regulation of the gene expression, producing subtle pathologies. Aim: To determine the influence of microsatellite marker AGAT of the mineralocorticoid receptor gene in the plasma renin activity (PRA) and serum aldosterone (SA) levels of essential hypertensives (HT). Patients and Methods: We studied 292 HT patients and 57 normotensive (NT) controls. Blood samples were collected for PRA, SA and DNA isolation. Subjects were genotyped according to the length of the tetranucleotide AGAT repeat using polymerase chain reaction and polyacrylamide gel electrophoresis. Based on the normal distribution, we considered 13 to 15 repeats as a habitual (H) length and less than 13 or more than 15 repeats, as non-habitual (non-H). Results: We detected 8 different lengths in the AGAT repeat (allele) in both groups, ranging from 9-17 repeats, where the allele 11 was not detected in either hypertensive or normotensive groups. The allelic distribution was different in both groups (c²=37.57, 4GL, p
Databáze: OpenAIRE