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  • Title: Urinary angiotensinogen level is correlated with blood pressure level and proteinuria in patients with masked hypertension.
    Author: Tiryaki O, Usalan C, Tarakcioglu M.
    Journal: Clin Exp Hypertens; 2018; 40(7):644-649. PubMed ID: 29420088.
    Abstract:
    Urinary <AQ: Please check whether all the edits made in this paper convey your intended meaning, and correct if necessary.>angiotensinogen (UAGT) level is an index of the intrarenal-renin angiotensin system status and is significantly correlated with blood pressure (BP) and proteinuria in patients with hypertension (HT). We aimed to investigate the possible relationship between UAGT levels and albuminuria in masked hypertensives. A total of 96 nondiabetic treated hypertensive patients were included in this study. The patients were divided into two groups: masked hypertensives (office BP <140/90 mmHg and ambulatory BP ≥130/80 mmHg) and controlled hypertensives (office BP <140/90 mmHg and ambulatory BP <130/80). The mean UAGT/UCre level and urinary albumin-creatinine ratio (UACR) of masked hypertensives were higher than those of controlled hypertensives (7.76 μg/g vs 4.02 μg/g, p < 0.001 and 174.21 mg/g vs 77.74 mg/g, p < 0.001, respectively). A significant positive correlation was found between UAGT/UCre levels and ambulatory systolic BP and diastolic BP levels in patients with masked HT, but this was not found with office SBP or DBP levels. Importantly, UAGT/UCre levels showed a significant positive correlation with UACR in both groups, but correlation of the UAGT levels with UACR was more pronounced in masked hypertensives (r = 0.854, p < 0.001 vsr = 0.512, p < 0.01). As a result, UAGT level was increased in patients with masked HT, which was associated with an elevation in albuminuria. Overproduction of the UAGT may play a pivotal role in development of proteinuria.
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