renal/urinary system
• complete absence of juxtaglomerular cell granulation
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• the macula densa of the kidney distal tubule exhibits hypercellularity and an altered epithelial morphology in which the cells show a columnar, instead of a cuboidal, appearance
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cardiovascular system
• females, but not males, exhibit a decrease in blood pressure of 12.7 mmHg
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homeostasis/metabolism
• plasma prorenin concentrations are higher in males and females
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• plasma renin levels are lower in females but not in males
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