Lama Ghazi 1 , Tanja Dudenbostel 1 , Maria El Hachem 1 , Mohammed Siddiqui 1 , Chee Paul Lin 2 , Suzanne Oparil 1 , David A Calhoun 1 Show Affiliations »
Abstract
BACKGROUND AND OBJECTIVE: Decreased renal 11-beta dehydrogenase type 2 (11β-HSD2) activity, as reflected by an increased urinary free cortisol to cortisone ratio (UFF/UFE), is associated with having hypertension (HTN). The current study was conducted to determine if reduced 11β-HSD2 activity is also associated with having resistant HTN. METHOD: We evaluated 55 consecutive patients with RHTN, defined as blood pressure (BP) ≥140/90 mm Hg despite using ≥3 antihypertensive medications including a diuretic, and 38 patients whose BP was controlled on ≤3 medications to serve as a non-RHTN comparator group. All patients underwent biochemical evaluation, including measurement of 24-hour urinary UFF/UFE. RESULTS: The 2 study groups had similar demographic characteristics. Systolic, diastolic BP, and number of antihypertensive medications were greater in patients with uncontrolled RHTN vs. the control group (167.5 ± 28.2/91.2 ± 18.8 vs. 126.6 ± 11.4/77.8 ± 8.65 mm Hg and 4.31 ± 1.23 vs. 2.74 ± 0.6, respectively). The 24-hour UFF was 13.6 ± 11.8 vs. 14.3 ± 10.7 µg/24 h and UFE was 64.9 ± 36.3 vs. 76.1 ± 44 µg/24 h such that the UFF/UFE was 0.22 ± 0.16 vs. 0.19 ± 0.09 in RHTN vs. the control group. This ratio was not associated to age, race, gender, and body mass index. CONCLUSION: An elevated UFF/UFE was not present in this large cohort of patients with uncontrolled RHTN. This suggests that reduced conversion of cortisol to cortisone does not contribute to the development of RHTN. © American Journal of Hypertension, Ltd 2017. All rights reserved. For Permissions, please email: journals.permissions@oup.com
BACKGROUND AND OBJECTIVE: Decreased renal 11-beta dehydrogenase type 2 (11β-HSD2) activity, as reflected by an increased urinary free cortisol to cortisone ratio (UFF/UFE), is associated with having hypertension (HTN). The current study was conducted to determine if reduced 11β-HSD2 activity is also associated with having resistant HTN. METHOD: We evaluated 55 consecutive patients with RHTN, defined as blood pressure (BP) ≥140/90 mm Hg despite using ≥3 antihypertensive medications including a diuretic, and 38 patients whose BP was controlled on ≤3 medications to serve as a non-RHTN comparator group. All patients underwent biochemical evaluation, including measurement of 24-hour urinary UFF/UFE. RESULTS: The 2 study groups had similar demographic characteristics. Systolic, diastolic BP, and number of antihypertensive medications were greater in patients with uncontrolled RHTN vs. the control group (167.5 ± 28.2/91.2 ± 18.8 vs. 126.6 ± 11.4/77.8 ± 8.65 mm Hg and 4.31 ± 1.23 vs. 2.74 ± 0.6, respectively). The 24-hour UFF was 13.6 ± 11.8 vs. 14.3 ± 10.7 µg/24 h and UFE was 64.9 ± 36.3 vs. 76.1 ± 44 µg/24 h such that the UFF/UFE was 0.22 ± 0.16 vs. 0.19 ± 0.09 in RHTN vs. the control group. This ratio was not associated to age, race, gender, and body mass index. CONCLUSION: An elevated UFF/UFE was not present in this large cohort of patients with uncontrolled RHTN. This suggests that reduced conversion of cortisol to cortisone does not contribute to the development of RHTN. © American Journal of Hypertension, Ltd 2017. All rights reserved. For Permissions, please email: journals.permissions@oup.com
Entities: Chemical
Keywords:
11-beta dehydrogenase type 2; blood pressure; cortisol/ cortisone ratio; hypertension; resistant hypertension.
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Year: 2017
PMID： 28180242 PMCID： PMC5861581 DOI： 10.1093/ajh/hpx002
Source DB: PubMed Journal: Am J Hypertens ISSN： 0895-7061 Impact factor: 2.689