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2017 ; 6
(6
): 393-400
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A Quantitative Systems Physiology Model of Renal Function and Blood Pressure
Regulation: Application in Salt-Sensitive Hypertension
#MMPMID28556624
Hallow KM
; Gebremichael Y
CPT Pharmacometrics Syst Pharmacol
2017[Jun]; 6
(6
): 393-400
PMID28556624
show ga
Salt-sensitivity (SS) refers to changes in blood pressure in response to changes
in sodium intake. SS individuals are at greater risk for developing kidney
disease, and also respond differently to antihypertensive therapies compared to
salt-resistant (SR) individuals. In this study we used a systems pharmacology
model of renal function (presented in a companion article) to evaluate the
ability of proposed mechanisms to produce salt-sensitivity. The model reproduced
previously published data on renal functional changes in response to salt-intake,
and also predicted that glomerular pressure, a variable that is not easily
evaluated clinically but is a key factor in renal injury, increases with salt
intake in SS hypertension. We then used the model to generate mechanistic insight
into the differential blood pressure and glomerular pressure responses to
angiotensin converting enzyme (ACE) inhibitors, thiazide diuretics, and calcium
channel blockers observed in SS and SR hypertension.