Avast Customer Support. Acknowledged as the worldâs number one security software, Avast Antivirus is now shielding more than 230 million people worldwide. By means of three levels of security system, it commits to keep all of your accounts protected, with just one unbreakable password.
Aldosterone, like ADH also acts on the distant tubules, but also at the kidneyâs collecting ducts. Water retention with the aid of aldosterone is more complex because it has to undergo the Sodium-Potassium exchange channels. In this set-up, potassium is excreted while sodium is retained.
Aldosterone is a steroid secreted by the cortex of the adrenal gland. It is. the most potent hormone regulating the body's electrolyte balance. Aldosterone acts directly on the kidney to decrease the rate of sodium-ion excretion (with accompanying retention of water), and to increase the rate of potassium-ion excretion. The secretion of aldosterone appears to be regulated by two mechanisms. First, the concentration of sodium ions may be a factor since increased rates of aldosterone secretion are found when dietary sodium is severely limited. Second, reduced blood flow to the kidney stimulates certain kidney cells to secrete the proteolytic enzyme renin, which converts the inactive angiotensinogen globulin in the blood into angiotensin I. Another enzyme then converts angiotensin I into angiotensin II, its active form. This peptide, in turn, stimulates the secretion of ...