Dallas, TX 75265-0527. This form is to be used for switching from check payments to direct deposit of certain federal. benefits listed in Box C. Use of this form for any other purposes will result in the form being rejected.
In contrast to ADH, which promotes the reabsorption of water to maintain proper water balance, aldosterone maintains proper water balance by enhancing Na+ reabsorption and K+ secretion from extracellular fluid of the cells in kidney tubules.
Confirming the well-documented action of aldosterone on Na + reabsorption by the distal tubule, incubation of tubules with 10 -8 mol/L aldosterone enhanced 1 mmol/L Na + uptake in the absence of Ca 2+ in the medium, from 0.60 0.02 to 0.98 0.04 pmol/ g/10 seconds (P N = 4).owever, aldosterone also enhances Ca 2+ reabsorption by the distal nephron. This was an unexpected finding because most of the Ca 2+ regulating hormones, such as parathyroid hormone, calcitonin, calbindin 28K, and angiotensin II act on the two cation transports in opposite directions.