Final answer:
Mineralocorticoids, including aldosterone, play a crucial role in regulating sodium and potassium levels in the body.
Explanation:
Mineralocorticoids are hormones synthesized by the adrenal cortex that affect osmotic balance. Aldosterone regulates sodium levels in the blood, affecting water levels in body fluids, and also stimulates potassium secretion. The absence of aldosterone can lead to potassium retention, causing a dangerous increase in plasma K+ concentration.
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