Circulation, Vol 74, 1061-1065, Copyright © 1986 by American Heart Association
GL Bakris, DM Wilson and JC Burnett Jr
Nine normal volunteers underwent assessment of renal, forearm, and hormonal
responses to orthostasis (quiet standing) in the presence and absence of 1
week of oral propranolol (160 mg/day). This was done to test the hypothesis
that physiologic decrements in renal function (glomerular filtration rate,
effective renal plasma flow, and absolute urinary sodium excretion) are
attenuated by propranolol during quiet standing. The present studies,
however, demonstrate that propranolol exaggerates the physiologic decrement
in glomerular filtration rate, effective renal plasma flow, and absolute
urinary sodium excretion during orthostasis. Forearm and renal vascular
resistances were also accentuated in the presence of propranolol during
quiet standing. These responses were associated with significant increases
in plasma norepinephrine. We conclude that long-term administration of
propranolol accentuates the physiologic decrement in renal hemodynamic and
excretory function as well as in the forearm hemodynamic response to
orthostasis in normal subjects.
ARTICLES
The renal, forearm, and hormonal responses to standing in the presence and absence of propranolol
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