Why the study?
Does aminophylline or DOCA-saline pretreatment alter the susceptibility of renal vasculature to high-pressure injection-induced lesions in rats?
Population
Normal, ether-anesthetized rats
Comparison
Part 1: Aminophylline prior to high-pressure… vs Part 1: Control animals. Part 2: Normal rats…
Design
Preclinical
Authors
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Indicates vascular smooth muscle alteration lowers pressure threshold for renal lesions in rats; hypothesis-generating for hypertensive vasculopathy mechanisms.
Does aminophylline or DOCA-saline pretreatment alter the susceptibility of renal vasculature to high-pressure injection-induced lesions in rats?
Hypertensive vascular lesions likely occur in dilated, hyperdistended vessels due to focal smooth muscle alteration with loss of contractility, rather than being strictly dependent on vasoconstriction or absolute blood pressure height.
Gary S. Hill (1970) studied this question.
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