Key result
Diazoxide increases active and decreases inactive renin via beta-adrenoreceptor-mediated activation blocked by propranolol.
Why the study?
Does acute stimulation of renin release by diazoxide alter circulating active and inactive renin levels in hypertensive patients?
Population
Patients with essential hypertension (EHT) and renovascular hypertension (RVHT).
Comparison
Diazoxide 300 mg intravenously; Propranolol 80… vs Baseline values prior to drug administration.
Design
Cohort
Follow-up
Up to 15 hours post-diazoxide; 10-14 days for propranolol
Authors
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Does not alter clinical renin assessment in hypertension; supports beta-mediated intrarenal activation of inactive renin for further study.
Does acute stimulation of renin release by diazoxide alter circulating active and inactive renin levels in hypertensive patients?
The study provides physiological evidence that the human kidney converts circulating inactive renin to active renin during stimulated renin release, a process likely mediated by beta-adrenoreceptors.
Derkx et al. (1979) studied Essential hypertension and renovascular hypertension. Diazoxide and Propranolol vs. Baseline/untreated state was evaluated on Active and inactive renin levels. Acute stimulation of renin release by diazoxide increased active renin and decreased inactive renin, an effect blocked by propranolol, suggesting beta-adrenoreceptor-mediated intrarenal activation.
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